Merge tag 'drm-intel-next-2022-09-16-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

drm/i915 feature pull #2 for v6.1:

Features and functionality:
- More Meteorlake platform enabling (Radhakrishna, Imre, Madhumitha)
- Allow seamless M/N changes on eDP panels that support it (Ville)
- Switch DSC debugfs from output bpp to input bpc (Swati)

Refactoring and cleanups:
- Clocking and DPLL refactoring and cleanups to support seamless M/N (Ville)
- Plenty of VBT definition and parsing updates and cleanups (Ville)
- Extract SKL watermark code to a separate file, and clean up (Ville)
- Clean up IPC interfaces and debugfs (Jani)
- Continue moving display data under drm_i915_private display sub-struct (Jani)
- Display quirk handling refactoring and abstractions (Jani)
- Stop using implicit dev_priv in gmbus registers (Jani)
- BUG_ON() removals and conversions to drm_WARN_ON() and BUILD_BUG_ON() (Jani)
- Use drm_dp_phy_name() for logging (Jani)
- Use REG_BIT() macros for CDCLK registers (Stan)
- Move display and media IP versions to runtime info (Radhakrishna)

Fixes:
- Fix DP MST suspend to avoid use-after-free (Andrzej)
- Fix HPD suspend to avoid use-after-free for fbdev (Andrzej)
- Fix various PSR issues regarding selective update and damage clips (Jouni)
- Fix runtime pm wakerefs for driver remove and release (Mitul Golani)
- Fix conditions for filtering fixed modes for panels (Ville)
- Fix TV encoder clock computation (Ville)
- Fix dvo mode_valid hook return type (Nathan Huckleberry)

Merges:
- Backmerge drm-next to sync the DP MST atomic changes (Jani)

Signed-off-by: Dave Airlie <[e-mail]>

From: Jani Nikula <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/i915/Makefile

···
 	display/intel_vga.o \
 	display/i9xx_plane.o \
 	display/skl_scaler.o \
-	display/skl_universal_plane.o
+	display/skl_universal_plane.o \
+	display/skl_watermark.o
 i915-$(CONFIG_ACPI) += \
 	display/intel_acpi.o \
 	display/intel_opregion.o

drivers/gpu/drm/i915/display/hsw_ips.c

···
 	 * Should measure whether using a lower cdclk w/o IPS
 	 */
 	if (IS_BROADWELL(i915) &&
-	    crtc_state->pixel_rate > i915->max_cdclk_freq * 95 / 100)
+	    crtc_state->pixel_rate > i915->display.cdclk.max_cdclk_freq * 95 / 100)
 		return false;
 
 	return true;

drivers/gpu/drm/i915/display/i9xx_plane.c

···
 					enum i9xx_plane_id i9xx_plane)
 {
 	if (i9xx_plane_has_fbc(dev_priv, i9xx_plane))
-		return dev_priv->fbc[INTEL_FBC_A];
+		return dev_priv->display.fbc[INTEL_FBC_A];
 	else
 		return NULL;
 }

drivers/gpu/drm/i915/display/icl_dsi.c

···
 	/* FIXME: initialize from VBT */
 	vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST;
 
+	vdsc_cfg->pic_height = crtc_state->hw.adjusted_mode.crtc_vdisplay;
+
 	ret = intel_dsc_compute_params(crtc_state);
 	if (ret)
 		return ret;

drivers/gpu/drm/i915/display/intel_atomic.c

···
 	struct intel_digital_connector_state *intel_conn_state =
 		to_intel_digital_connector_state(state);
 
-	if (property == dev_priv->force_audio_property)
+	if (property == dev_priv->display.properties.force_audio)
 		*val = intel_conn_state->force_audio;
-	else if (property == dev_priv->broadcast_rgb_property)
+	else if (property == dev_priv->display.properties.broadcast_rgb)
 		*val = intel_conn_state->broadcast_rgb;
 	else {
 		drm_dbg_atomic(&dev_priv->drm,
···
 	struct intel_digital_connector_state *intel_conn_state =
 		to_intel_digital_connector_state(state);
 
-	if (property == dev_priv->force_audio_property) {
+	if (property == dev_priv->display.properties.force_audio) {
 		intel_conn_state->force_audio = val;
 		return 0;
 	}
 
-	if (property == dev_priv->broadcast_rgb_property) {
+	if (property == dev_priv->display.properties.broadcast_rgb) {
 		intel_conn_state->broadcast_rgb = val;
 		return 0;
 	}

drivers/gpu/drm/i915/display/intel_atomic_plane.c

···
 #include "intel_display_types.h"
 #include "intel_fb.h"
 #include "intel_fb_pin.h"
-#include "intel_pm.h"
 #include "intel_sprite.h"
 #include "skl_scaler.h"
+#include "skl_watermark.h"
 
 static void intel_plane_state_reset(struct intel_plane_state *plane_state,
 				    struct intel_plane *plane)

drivers/gpu/drm/i915/display/intel_audio.c

···
 	h_total = crtc_state->hw.adjusted_mode.crtc_htotal;
 	pixel_clk = crtc_state->hw.adjusted_mode.crtc_clock;
 	vdsc_bpp = crtc_state->dsc.compressed_bpp;
-	cdclk = i915->cdclk.hw.cdclk;
+	cdclk = i915->display.cdclk.hw.cdclk;
 	/* fec= 0.972261, using rounding multiplier of 1000000 */
 	fec_coeff = 972261;
 	link_clk = crtc_state->port_clock;
···
 	struct aud_ts_cdclk_m_n aud_ts;
 
 	if (DISPLAY_VER(i915) >= 13) {
-		get_aud_ts_cdclk_m_n(i915->cdclk.hw.ref, i915->cdclk.hw.cdclk, &aud_ts);
+		get_aud_ts_cdclk_m_n(i915->display.cdclk.hw.ref, i915->display.cdclk.hw.cdclk, &aud_ts);
 
 		intel_de_write(i915, AUD_TS_CDCLK_N, aud_ts.n);
 		intel_de_write(i915, AUD_TS_CDCLK_M, aud_ts.m | AUD_TS_CDCLK_M_EN);
···
 	if (drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_DDI(dev_priv)))
 		return -ENODEV;
 
-	return dev_priv->cdclk.hw.cdclk;
+	return dev_priv->display.cdclk.hw.cdclk;
 }
 
 /*

drivers/gpu/drm/i915/display/intel_backlight.c

···
 #include "intel_panel.h"
 #include "intel_pci_config.h"
 #include "intel_pps.h"
+#include "intel_quirks.h"
 
 /**
  * scale - scale values from one range to another
···
 		return val;
 
 	if (dev_priv->params.invert_brightness > 0 ||
-	    dev_priv->quirks & QUIRK_INVERT_BRIGHTNESS) {
+	    intel_has_quirk(dev_priv, QUIRK_INVERT_BRIGHTNESS)) {
 		return panel->backlight.pwm_level_max - val + panel->backlight.pwm_level_min;
 	}
 
···
 			 panel->backlight.max == 0 || panel->backlight.pwm_level_max == 0);
 
 	if (dev_priv->params.invert_brightness > 0 ||
-	    (dev_priv->params.invert_brightness == 0 && dev_priv->quirks & QUIRK_INVERT_BRIGHTNESS))
+	    (dev_priv->params.invert_brightness == 0 && intel_has_quirk(dev_priv, QUIRK_INVERT_BRIGHTNESS)))
 		val = panel->backlight.pwm_level_max - (val - panel->backlight.pwm_level_min);
 
 	return scale(val, panel->backlight.pwm_level_min, panel->backlight.pwm_level_max,
···
 	if (!panel->backlight.present || !conn_state->crtc)
 		return;
 
-	mutex_lock(&dev_priv->backlight_lock);
+	mutex_lock(&dev_priv->display.backlight.lock);
 
 	drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
 
···
 	if (panel->backlight.enabled)
 		intel_panel_actually_set_backlight(conn_state, hw_level);
 
-	mutex_unlock(&dev_priv->backlight_lock);
+	mutex_unlock(&dev_priv->display.backlight.lock);
 }
 
 static void lpt_disable_backlight(const struct drm_connector_state *old_conn_state, u32 level)
···
 		return;
 	}
 
-	mutex_lock(&dev_priv->backlight_lock);
+	mutex_lock(&dev_priv->display.backlight.lock);
 
 	if (panel->backlight.device)
 		panel->backlight.device->props.power = FB_BLANK_POWERDOWN;
 	panel->backlight.enabled = false;
 	panel->backlight.funcs->disable(old_conn_state, 0);
 
-	mutex_unlock(&dev_priv->backlight_lock);
+	mutex_unlock(&dev_priv->display.backlight.lock);
 }
 
 static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
···
 
 	drm_dbg_kms(&dev_priv->drm, "pipe %c\n", pipe_name(pipe));
 
-	mutex_lock(&dev_priv->backlight_lock);
+	mutex_lock(&dev_priv->display.backlight.lock);
 
 	__intel_backlight_enable(crtc_state, conn_state);
 
-	mutex_unlock(&dev_priv->backlight_lock);
+	mutex_unlock(&dev_priv->display.backlight.lock);
 }
 
 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
···
 	struct intel_panel *panel = &connector->panel;
 	u32 val = 0;
 
-	mutex_lock(&dev_priv->backlight_lock);
+	mutex_lock(&dev_priv->display.backlight.lock);
 
 	if (panel->backlight.enabled)
 		val = panel->backlight.funcs->get(connector, intel_connector_get_pipe(connector));
 
-	mutex_unlock(&dev_priv->backlight_lock);
+	mutex_unlock(&dev_priv->display.backlight.lock);
 
 	drm_dbg_kms(&dev_priv->drm, "get backlight PWM = %d\n", val);
 	return val;
···
 	if (!panel->backlight.present)
 		return;
 
-	mutex_lock(&dev_priv->backlight_lock);
+	mutex_lock(&dev_priv->display.backlight.lock);
 
 	drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
 
···
 	if (panel->backlight.enabled)
 		intel_panel_actually_set_backlight(conn_state, hw_level);
 
-	mutex_unlock(&dev_priv->backlight_lock);
+	mutex_unlock(&dev_priv->display.backlight.lock);
 }
 
 static int intel_backlight_device_update_status(struct backlight_device *bd)
···
 	if (IS_PINEVIEW(dev_priv))
 		clock = KHz(RUNTIME_INFO(dev_priv)->rawclk_freq);
 	else
-		clock = KHz(dev_priv->cdclk.hw.cdclk);
+		clock = KHz(dev_priv->display.cdclk.hw.cdclk);
 
 	return DIV_ROUND_CLOSEST(clock, pwm_freq_hz * 32);
 }
···
 	if (IS_G4X(dev_priv))
 		clock = KHz(RUNTIME_INFO(dev_priv)->rawclk_freq);
 	else
-		clock = KHz(dev_priv->cdclk.hw.cdclk);
+		clock = KHz(dev_priv->display.cdclk.hw.cdclk);
 
 	return DIV_ROUND_CLOSEST(clock, pwm_freq_hz * 128);
 }
···
 	if (!panel->backlight.present)
 		return;
 
-	mutex_lock(&dev_priv->backlight_lock);
+	mutex_lock(&dev_priv->display.backlight.lock);
 	if (!panel->backlight.enabled)
 		__intel_backlight_enable(crtc_state, conn_state);
 
-	mutex_unlock(&dev_priv->backlight_lock);
+	mutex_unlock(&dev_priv->display.backlight.lock);
 }
 
 int intel_backlight_setup(struct intel_connector *connector, enum pipe pipe)
···
 	int ret;
 
 	if (!connector->panel.vbt.backlight.present) {
-		if (dev_priv->quirks & QUIRK_BACKLIGHT_PRESENT) {
+		if (intel_has_quirk(dev_priv, QUIRK_BACKLIGHT_PRESENT)) {
 			drm_dbg_kms(&dev_priv->drm,
 				    "no backlight present per VBT, but present per quirk\n");
 		} else {
···
 		return -ENODEV;
 
 	/* set level and max in panel struct */
-	mutex_lock(&dev_priv->backlight_lock);
+	mutex_lock(&dev_priv->display.backlight.lock);
 	ret = panel->backlight.funcs->setup(connector, pipe);
-	mutex_unlock(&dev_priv->backlight_lock);
+	mutex_unlock(&dev_priv->display.backlight.lock);
 
 	if (ret) {
 		drm_dbg_kms(&dev_priv->drm,
···
 		if (intel_dp_aux_init_backlight_funcs(connector) == 0)
 			return;
 
-		if (!(dev_priv->quirks & QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK))
+		if (!intel_has_quirk(dev_priv, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK))
 			connector->panel.backlight.power = intel_pps_backlight_power;
 	}
 

drivers/gpu/drm/i915/display/intel_bios.c

···
 	return block - bdb;
 }
 
-/* size of the block excluding the header */
-static u32 raw_block_size(const void *bdb, enum bdb_block_id section_id)
-{
-	const void *block;
-
-	block = find_raw_section(bdb, section_id);
-	if (!block)
-		return 0;
-
-	return get_blocksize(block);
-}
-
 struct bdb_block_entry {
 	struct list_head node;
 	enum bdb_block_id section_id;
···
 {
 	struct bdb_block_entry *entry;
 
-	list_for_each_entry(entry, &i915->vbt.bdb_blocks, node) {
+	list_for_each_entry(entry, &i915->display.vbt.bdb_blocks, node) {
 		if (entry->section_id == section_id)
 			return entry->data + 3;
 	}
···
 {
 	int fp_timing_size, dvo_timing_size, panel_pnp_id_size, panel_name_size;
 	int data_block_size, lfp_data_size;
+	const void *data_block;
 	int i;
 
-	data_block_size = raw_block_size(bdb, BDB_LVDS_LFP_DATA);
+	data_block = find_raw_section(bdb, BDB_LVDS_LFP_DATA);
+	if (!data_block)
+		return false;
+
+	data_block_size = get_blocksize(data_block);
 	if (data_block_size == 0)
 		return false;
 
···
 	if (16 * lfp_data_size > data_block_size)
 		return false;
 
-	/*
-	 * Except for vlv/chv machines all real VBTs seem to have 6
-	 * unaccounted bytes in the fp_timing table. And it doesn't
-	 * appear to be a really intentional hole as the fp_timing
-	 * 0xffff terminator is always within those 6 missing bytes.
-	 */
-	if (fp_timing_size + dvo_timing_size + panel_pnp_id_size != lfp_data_size &&
-	    fp_timing_size + 6 + dvo_timing_size + panel_pnp_id_size != lfp_data_size)
-		return false;
-
-	if (ptrs->ptr[0].fp_timing.offset + fp_timing_size > ptrs->ptr[0].dvo_timing.offset ||
-	    ptrs->ptr[0].dvo_timing.offset + dvo_timing_size != ptrs->ptr[0].panel_pnp_id.offset ||
-	    ptrs->ptr[0].panel_pnp_id.offset + panel_pnp_id_size != lfp_data_size)
-		return false;
-
 	/* make sure the table entries have uniform size */
 	for (i = 1; i < 16; i++) {
 		if (ptrs->ptr[i].fp_timing.table_size != fp_timing_size ||
···
 			return false;
 	}
 
+	/*
+	 * Except for vlv/chv machines all real VBTs seem to have 6
+	 * unaccounted bytes in the fp_timing table. And it doesn't
+	 * appear to be a really intentional hole as the fp_timing
+	 * 0xffff terminator is always within those 6 missing bytes.
+	 */
+	if (fp_timing_size + 6 + dvo_timing_size + panel_pnp_id_size == lfp_data_size)
+		fp_timing_size += 6;
+
+	if (fp_timing_size + dvo_timing_size + panel_pnp_id_size != lfp_data_size)
+		return false;
+
+	if (ptrs->ptr[0].fp_timing.offset + fp_timing_size != ptrs->ptr[0].dvo_timing.offset ||
+	    ptrs->ptr[0].dvo_timing.offset + dvo_timing_size != ptrs->ptr[0].panel_pnp_id.offset ||
+	    ptrs->ptr[0].panel_pnp_id.offset + panel_pnp_id_size != lfp_data_size)
+		return false;
+
 	/* make sure the tables fit inside the data block */
 	for (i = 0; i < 16; i++) {
 		if (ptrs->ptr[i].fp_timing.offset + fp_timing_size > data_block_size ||
···
 
 	if (ptrs->panel_name.offset + 16 * panel_name_size > data_block_size)
 		return false;
+
+	/* make sure fp_timing terminators are present at expected locations */
+	for (i = 0; i < 16; i++) {
+		const u16 *t = data_block + ptrs->ptr[i].fp_timing.offset +
+			fp_timing_size - 2;
+
+		if (*t != 0xffff)
+			return false;
+	}
 
 	return true;
 }
···
 	return validate_lfp_data_ptrs(bdb, ptrs);
 }
 
-static const void *find_fp_timing_terminator(const u8 *data, int size)
-{
-	int i;
-
-	for (i = 0; i < size - 1; i++) {
-		if (data[i] == 0xff && data[i+1] == 0xff)
-			return &data[i];
-	}
-
-	return NULL;
-}
-
 static int make_lfp_data_ptr(struct lvds_lfp_data_ptr_table *table,
 			     int table_size, int total_size)
 {
···
 static void *generate_lfp_data_ptrs(struct drm_i915_private *i915,
 				    const void *bdb)
 {
-	int i, size, table_size, block_size, offset;
-	const void *t0, *t1, *block;
+	int i, size, table_size, block_size, offset, fp_timing_size;
 	struct bdb_lvds_lfp_data_ptrs *ptrs;
+	const void *block;
 	void *ptrs_block;
+
+	/*
+	 * The hardcoded fp_timing_size is only valid for
+	 * modernish VBTs. All older VBTs definitely should
+	 * include block 41 and thus we don't need to
+	 * generate one.
+	 */
+	if (i915->display.vbt.version < 155)
+		return NULL;
+
+	fp_timing_size = 38;
 
 	block = find_raw_section(bdb, BDB_LVDS_LFP_DATA);
 	if (!block)
···
 
 	block_size = get_blocksize(block);
 
-	size = block_size;
-	t0 = find_fp_timing_terminator(block, size);
-	if (!t0)
-		return NULL;
-
-	size -= t0 - block - 2;
-	t1 = find_fp_timing_terminator(t0 + 2, size);
-	if (!t1)
-		return NULL;
-
-	size = t1 - t0;
+	size = fp_timing_size + sizeof(struct lvds_dvo_timing) +
+		sizeof(struct lvds_pnp_id);
 	if (size * 16 > block_size)
 		return NULL;
 
···
 	table_size = sizeof(struct lvds_dvo_timing);
 	size = make_lfp_data_ptr(&ptrs->ptr[0].dvo_timing, table_size, size);
 
-	table_size = t0 - block + 2;
+	table_size = fp_timing_size;
 	size = make_lfp_data_ptr(&ptrs->ptr[0].fp_timing, table_size, size);
 
 	if (ptrs->ptr[0].fp_timing.table_size)
···
 		return NULL;
 	}
 
-	size = t1 - t0;
+	size = fp_timing_size + sizeof(struct lvds_dvo_timing) +
+		sizeof(struct lvds_pnp_id);
 	for (i = 1; i < 16; i++) {
 		next_lfp_data_ptr(&ptrs->ptr[i].fp_timing, &ptrs->ptr[i-1].fp_timing, size);
 		next_lfp_data_ptr(&ptrs->ptr[i].dvo_timing, &ptrs->ptr[i-1].dvo_timing, size);
 		next_lfp_data_ptr(&ptrs->ptr[i].panel_pnp_id, &ptrs->ptr[i-1].panel_pnp_id, size);
 	}
 
-	size = t1 - t0;
 	table_size = sizeof(struct lvds_lfp_panel_name);
 
 	if (16 * (size + table_size) <= block_size) {
···
 
 	block_size = get_blocksize(block);
 
+	/*
+	 * Version number and new block size are considered
+	 * part of the header for MIPI sequenece block v3+.
+	 */
+	if (section_id == BDB_MIPI_SEQUENCE && *(const u8 *)block >= 3)
+		block_size += 5;
+
 	entry = kzalloc(struct_size(entry, data, max(min_size, block_size) + 3),
 			GFP_KERNEL);
 	if (!entry) {
···
 		return;
 	}
 
-	list_add_tail(&entry->node, &i915->vbt.bdb_blocks);
+	list_add_tail(&entry->node, &i915->display.vbt.bdb_blocks);
 }
 
 static void init_bdb_blocks(struct drm_i915_private *i915,
···
 		return NULL;
 }
 
+static void dump_pnp_id(struct drm_i915_private *i915,
+			const struct lvds_pnp_id *pnp_id,
+			const char *name)
+{
+	u16 mfg_name = be16_to_cpu((__force __be16)pnp_id->mfg_name);
+	char vend[4];
+
+	drm_dbg_kms(&i915->drm, "%s PNPID mfg: %s (0x%x), prod: %u, serial: %u, week: %d, year: %d\n",
+		    name, drm_edid_decode_mfg_id(mfg_name, vend),
+		    pnp_id->mfg_name, pnp_id->product_code, pnp_id->serial,
+		    pnp_id->mfg_week, pnp_id->mfg_year + 1990);
+}
+
 static int opregion_get_panel_type(struct drm_i915_private *i915,
 				   const struct intel_bios_encoder_data *devdata,
 				   const struct edid *edid)
···
 	edid_id_nodate = *edid_id;
 	edid_id_nodate.mfg_week = 0;
 	edid_id_nodate.mfg_year = 0;
+
+	dump_pnp_id(i915, edid_id, "EDID");
 
 	ptrs = find_section(i915, BDB_LVDS_LFP_DATA_PTRS);
 	if (!ptrs)
···
 	const struct bdb_lvds_lfp_data *data;
 	const struct bdb_lvds_lfp_data_tail *tail;
 	const struct bdb_lvds_lfp_data_ptrs *ptrs;
+	const struct lvds_pnp_id *pnp_id;
 	int panel_type = panel->vbt.panel_type;
 
 	ptrs = find_section(i915, BDB_LVDS_LFP_DATA_PTRS);
···
 	if (!panel->vbt.lfp_lvds_vbt_mode)
 		parse_lfp_panel_dtd(i915, panel, data, ptrs);
 
+	pnp_id = get_lvds_pnp_id(data, ptrs, panel_type);
+	dump_pnp_id(i915, pnp_id, "Panel");
+
 	tail = get_lfp_data_tail(data, ptrs);
 	if (!tail)
 		return;
 
-	if (i915->vbt.version >= 188) {
+	drm_dbg_kms(&i915->drm, "Panel name: %.*s\n",
+		    (int)sizeof(tail->panel_name[0].name),
+		    tail->panel_name[panel_type].name);
+
+	if (i915->display.vbt.version >= 188) {
 		panel->vbt.seamless_drrs_min_refresh_rate =
 			tail->seamless_drrs_min_refresh_rate[panel_type];
 		drm_dbg_kms(&i915->drm,
···
 	 * first on VBT >= 229, but still fall back to trying the old LFP
 	 * block if that fails.
 	 */
-	if (i915->vbt.version < 229)
+	if (i915->display.vbt.version < 229)
 		return;
 
 	generic_dtd = find_section(i915, BDB_GENERIC_DTD);
···
 	}
 
 	panel->vbt.backlight.type = INTEL_BACKLIGHT_DISPLAY_DDI;
-	if (i915->vbt.version >= 191) {
+	if (i915->display.vbt.version >= 191) {
 		size_t exp_size;
 
-		if (i915->vbt.version >= 236)
+		if (i915->display.vbt.version >= 236)
 			exp_size = sizeof(struct bdb_lfp_backlight_data);
-		else if (i915->vbt.version >= 234)
+		else if (i915->display.vbt.version >= 234)
 			exp_size = EXP_BDB_LFP_BL_DATA_SIZE_REV_234;
 		else
 			exp_size = EXP_BDB_LFP_BL_DATA_SIZE_REV_191;
···
 	panel->vbt.backlight.pwm_freq_hz = entry->pwm_freq_hz;
 	panel->vbt.backlight.active_low_pwm = entry->active_low_pwm;
 
-	if (i915->vbt.version >= 234) {
+	if (i915->display.vbt.version >= 234) {
 		u16 min_level;
 		bool scale;
 
 		level = backlight_data->brightness_level[panel_type].level;
 		min_level = backlight_data->brightness_min_level[panel_type].level;
 
-		if (i915->vbt.version >= 236)
+		if (i915->display.vbt.version >= 236)
 			scale = backlight_data->brightness_precision_bits[panel_type] == 16;
 		else
 			scale = level > 255;
···
 	if (!general)
 		return;
 
-	i915->vbt.int_tv_support = general->int_tv_support;
+	i915->display.vbt.int_tv_support = general->int_tv_support;
 	/* int_crt_support can't be trusted on earlier platforms */
-	if (i915->vbt.version >= 155 &&
+	if (i915->display.vbt.version >= 155 &&
 	    (HAS_DDI(i915) || IS_VALLEYVIEW(i915)))
-		i915->vbt.int_crt_support = general->int_crt_support;
-	i915->vbt.lvds_use_ssc = general->enable_ssc;
-	i915->vbt.lvds_ssc_freq =
+		i915->display.vbt.int_crt_support = general->int_crt_support;
+	i915->display.vbt.lvds_use_ssc = general->enable_ssc;
+	i915->display.vbt.lvds_ssc_freq =
 		intel_bios_ssc_frequency(i915, general->ssc_freq);
-	i915->vbt.display_clock_mode = general->display_clock_mode;
-	i915->vbt.fdi_rx_polarity_inverted = general->fdi_rx_polarity_inverted;
-	if (i915->vbt.version >= 181) {
-		i915->vbt.orientation = general->rotate_180 ?
+	i915->display.vbt.display_clock_mode = general->display_clock_mode;
+	i915->display.vbt.fdi_rx_polarity_inverted = general->fdi_rx_polarity_inverted;
+	if (i915->display.vbt.version >= 181) {
+		i915->display.vbt.orientation = general->rotate_180 ?
 			DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP :
 			DRM_MODE_PANEL_ORIENTATION_NORMAL;
 	} else {
-		i915->vbt.orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
+		i915->display.vbt.orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
 	}
 
-	if (i915->vbt.version >= 249 && general->afc_startup_config) {
-		i915->vbt.override_afc_startup = true;
-		i915->vbt.override_afc_startup_val = general->afc_startup_config == 0x1 ? 0x0 : 0x7;
+	if (i915->display.vbt.version >= 249 && general->afc_startup_config) {
+		i915->display.vbt.override_afc_startup = true;
+		i915->display.vbt.override_afc_startup_val = general->afc_startup_config == 0x1 ? 0x0 : 0x7;
 	}
 
 	drm_dbg_kms(&i915->drm,
 		    "BDB_GENERAL_FEATURES int_tv_support %d int_crt_support %d lvds_use_ssc %d lvds_ssc_freq %d display_clock_mode %d fdi_rx_polarity_inverted %d\n",
-		    i915->vbt.int_tv_support,
-		    i915->vbt.int_crt_support,
-		    i915->vbt.lvds_use_ssc,
-		    i915->vbt.lvds_ssc_freq,
-		    i915->vbt.display_clock_mode,
-		    i915->vbt.fdi_rx_polarity_inverted);
+		    i915->display.vbt.int_tv_support,
+		    i915->display.vbt.int_crt_support,
+		    i915->display.vbt.lvds_use_ssc,
+		    i915->display.vbt.lvds_ssc_freq,
+		    i915->display.vbt.display_clock_mode,
+		    i915->display.vbt.fdi_rx_polarity_inverted);
 }
 
 static const struct child_device_config *
···
 		return;
 	}
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		if (child->slave_addr != SLAVE_ADDR1 &&
···
 			    child->slave_addr,
 			    (child->dvo_port == DEVICE_PORT_DVOB) ?
 			    "SDVOB" : "SDVOC");
-		mapping = &i915->vbt.sdvo_mappings[child->dvo_port - 1];
+		mapping = &i915->display.vbt.sdvo_mappings[child->dvo_port - 1];
 		if (!mapping->initialized) {
 			mapping->dvo_port = child->dvo_port;
 			mapping->slave_addr = child->slave_addr;
···
 		 * interpretation, but real world VBTs seem to.
 		 */
 		if (driver->lvds_config != BDB_DRIVER_FEATURE_INT_LVDS)
-			i915->vbt.int_lvds_support = 0;
+			i915->display.vbt.int_lvds_support = 0;
 	} else {
 		/*
 		 * FIXME it's not clear which BDB version has the LVDS config
···
 		 * in the wild with the bits correctly populated. Version
 		 * 108 (on i85x) does not have the bits correctly populated.
 		 */
-		if (i915->vbt.version >= 134 &&
+		if (i915->display.vbt.version >= 134 &&
 		    driver->lvds_config != BDB_DRIVER_FEATURE_INT_LVDS &&
 		    driver->lvds_config != BDB_DRIVER_FEATURE_INT_SDVO_LVDS)
-			i915->vbt.int_lvds_support = 0;
+			i915->display.vbt.int_lvds_support = 0;
 	}
 }
 
···
 	if (!driver)
 		return;
 
-	if (i915->vbt.version < 228) {
+	if (i915->display.vbt.version < 228) {
 		drm_dbg_kms(&i915->drm, "DRRS State Enabled:%d\n",
 			    driver->drrs_enabled);
 		/*
···
 
 	panel->vbt.vrr = true; /* matches Windows behaviour */
 
-	if (i915->vbt.version < 228)
+	if (i915->display.vbt.version < 228)
 		return;
 
 	power = find_section(i915, BDB_LFP_POWER);
···
 			panel->vbt.drrs_type = DRRS_TYPE_NONE;
 	}
 
-	if (i915->vbt.version >= 232)
+	if (i915->display.vbt.version >= 232)
 		panel->vbt.edp.hobl = panel_bool(power->hobl, panel_type);
 
-	if (i915->vbt.version >= 233)
+	if (i915->display.vbt.version >= 233)
 		panel->vbt.vrr = panel_bool(power->vrr_feature_enabled,
 					    panel_type);
 }
···
 
 	panel->vbt.edp.pps = *edp_pps;
 
-	if (i915->vbt.version >= 224) {
+	if (i915->display.vbt.version >= 224) {
 		panel->vbt.edp.rate =
 			edp->edp_fast_link_training_rate[panel_type] * 20;
 	} else {
···
 		break;
 	}
 
-	if (i915->vbt.version >= 173) {
+	if (i915->display.vbt.version >= 173) {
 		u8 vswing;
 
 		/* Don't read from VBT if module parameter has valid value*/
···
 	panel->vbt.edp.drrs_msa_timing_delay =
 		panel_bits(edp->sdrrs_msa_timing_delay, panel_type, 2);
 
-	if (i915->vbt.version >= 244)
+	if (i915->display.vbt.version >= 244)
 		panel->vbt.edp.max_link_rate =
 			edp->edp_max_port_link_rate[panel_type] * 20;
 }
···
 	 * New psr options 0=500us, 1=100us, 2=2500us, 3=0us
 	 * Old decimal value is wake up time in multiples of 100 us.
 	 */
-	if (i915->vbt.version >= 205 &&
+	if (i915->display.vbt.version >= 205 &&
 	    (DISPLAY_VER(i915) >= 9 && !IS_BROXTON(i915))) {
 		switch (psr_table->tp1_wakeup_time) {
 		case 0:
···
 		panel->vbt.psr.tp2_tp3_wakeup_time_us = psr_table->tp2_tp3_wakeup_time * 100;
 	}
 
-	if (i915->vbt.version >= 226) {
+	if (i915->display.vbt.version >= 226) {
 		u32 wakeup_time = psr->psr2_tp2_tp3_wakeup_time;
 
 		wakeup_time = panel_bits(wakeup_time, panel_type, 2);
···
 {
 	enum port port_bc = DISPLAY_VER(i915) >= 11 ? PORT_B : PORT_C;
 
-	if (!panel->vbt.dsi.config->dual_link || i915->vbt.version < 197) {
+	if (!panel->vbt.dsi.config->dual_link || i915->display.vbt.version < 197) {
 		panel->vbt.dsi.bl_ports = BIT(port);
 		if (panel->vbt.dsi.config->cabc_supported)
 			panel->vbt.dsi.cabc_ports = BIT(port);
···
 	u16 block_size;
 	int index;
 
-	if (i915->vbt.version < 198)
+	if (i915->display.vbt.version < 198)
 		return;
 
 	params = find_section(i915, BDB_COMPRESSION_PARAMETERS);
···
 		}
 	}
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		if (!child->compression_enable)
···
 		return PORT_NONE;
 
 	for_each_port(port) {
-		devdata = i915->vbt.ports[port];
+		devdata = i915->display.vbt.ports[port];
 
 		if (devdata && ddc_pin == devdata->child.ddc_pin)
 			return port;
···
 	 * there are real machines (eg. Asrock B250M-HDV) where VBT has both
 	 * port A and port E with the same AUX ch and we must pick port E :(
 	 */
-	child = &i915->vbt.ports[p]->child;
+	child = &i915->display.vbt.ports[p]->child;
 
 	child->device_type &= ~DEVICE_TYPE_TMDS_DVI_SIGNALING;
 	child->device_type |= DEVICE_TYPE_NOT_HDMI_OUTPUT;
···
 		return PORT_NONE;
 
 	for_each_port(port) {
-		devdata = i915->vbt.ports[port];
+		devdata = i915->display.vbt.ports[port];
 
 		if (devdata && aux_ch == devdata->child.aux_channel)
 			return port;
···
 	 * there are real machines (eg. Asrock B250M-HDV) where VBT has both
 	 * port A and port E with the same AUX ch and we must pick port E :(
 	 */
-	child = &i915->vbt.ports[p]->child;
+	child = &i915->display.vbt.ports[p]->child;
 
 	child->device_type &= ~DEVICE_TYPE_DISPLAYPORT_OUTPUT;
 	child->aux_channel = 0;
···
 
 static int _intel_bios_dp_max_link_rate(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 216)
+	if (!devdata || devdata->i915->display.vbt.version < 216)
 		return 0;
 
-	if (devdata->i915->vbt.version >= 230)
+	if (devdata->i915->display.vbt.version >= 230)
 		return parse_bdb_230_dp_max_link_rate(devdata->child.dp_max_link_rate);
 	else
 		return parse_bdb_216_dp_max_link_rate(devdata->child.dp_max_link_rate);
+}
+
+static int _intel_bios_dp_max_lane_count(const struct intel_bios_encoder_data *devdata)
+{
+	if (!devdata || devdata->i915->display.vbt.version < 244)
+		return 0;
+
+	return devdata->child.dp_max_lane_count + 1;
 }
 
 static void sanitize_device_type(struct intel_bios_encoder_data *devdata,
···
 
 static int _intel_bios_hdmi_level_shift(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 158)
+	if (!devdata || devdata->i915->display.vbt.version < 158)
 		return -1;
 
 	return devdata->child.hdmi_level_shifter_value;
···
 
 static int _intel_bios_max_tmds_clock(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 204)
+	if (!devdata || devdata->i915->display.vbt.version < 204)
 		return 0;
 
 	switch (devdata->child.hdmi_max_data_rate) {
···
 		return;
 	}
 
-	if (i915->vbt.ports[port]) {
+	if (i915->display.vbt.ports[port]) {
 		drm_dbg_kms(&i915->drm,
 			    "More than one child device for port %c in VBT, using the first.\n",
 			    port_name(port));
···
 	if (intel_bios_encoder_supports_dp(devdata))
 		sanitize_aux_ch(devdata, port);
 
-	i915->vbt.ports[port] = devdata;
+	i915->display.vbt.ports[port] = devdata;
 }
 
 static bool has_ddi_port_info(struct drm_i915_private *i915)
···
 	if (!has_ddi_port_info(i915))
 		return;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node)
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node)
 		parse_ddi_port(devdata);
 
 	for_each_port(port) {
-		if (i915->vbt.ports[port])
-			print_ddi_port(i915->vbt.ports[port], port);
+		if (i915->display.vbt.ports[port])
+			print_ddi_port(i915->display.vbt.ports[port], port);
 	}
 }
 
···
 	bus_pin = defs->crt_ddc_gmbus_pin;
 	drm_dbg_kms(&i915->drm, "crt_ddc_bus_pin: %d\n", bus_pin);
 	if (intel_gmbus_is_valid_pin(i915, bus_pin))
-		i915->vbt.crt_ddc_pin = bus_pin;
+		i915->display.vbt.crt_ddc_pin = bus_pin;
 
-	if (i915->vbt.version < 106) {
+	if (i915->display.vbt.version < 106) {
 		expected_size = 22;
-	} else if (i915->vbt.version < 111) {
+	} else if (i915->display.vbt.version < 111) {
 		expected_size = 27;
-	} else if (i915->vbt.version < 195) {
+	} else if (i915->display.vbt.version < 195) {
 		expected_size = LEGACY_CHILD_DEVICE_CONFIG_SIZE;
-	} else if (i915->vbt.version == 195) {
+	} else if (i915->display.vbt.version == 195) {
 		expected_size = 37;
-	} else if (i915->vbt.version <= 215) {
+	} else if (i915->display.vbt.version <= 215) {
 		expected_size = 38;
-	} else if (i915->vbt.version <= 237) {
+	} else if (i915->display.vbt.version <= 237) {
 		expected_size = 39;
 	} else {
 		expected_size = sizeof(*child);
 		BUILD_BUG_ON(sizeof(*child) < 39);
 		drm_dbg(&i915->drm,
 			"Expected child device config size for VBT version %u not known; assuming %u\n",
-			i915->vbt.version, expected_size);
+			i915->display.vbt.version, expected_size);
 	}
 
 	/* Flag an error for unexpected size, but continue anyway. */
 	if (defs->child_dev_size != expected_size)
 		drm_err(&i915->drm,
 			"Unexpected child device config size %u (expected %u for VBT version %u)\n",
-			defs->child_dev_size, expected_size, i915->vbt.version);
+			defs->child_dev_size, expected_size, i915->display.vbt.version);
 
 	/* The legacy sized child device config is the minimum we need. */
 	if (defs->child_dev_size < LEGACY_CHILD_DEVICE_CONFIG_SIZE) {
···
 		memcpy(&devdata->child, child,
 		       min_t(size_t, defs->child_dev_size, sizeof(*child)));
 
-		list_add_tail(&devdata->node, &i915->vbt.display_devices);
+		list_add_tail(&devdata->node, &i915->display.vbt.display_devices);
 	}
 
-	if (list_empty(&i915->vbt.display_devices))
+	if (list_empty(&i915->display.vbt.display_devices))
 		drm_dbg_kms(&i915->drm,
 			    "no child dev is parsed from VBT\n");
 }
···
 static void
 init_vbt_defaults(struct drm_i915_private *i915)
 {
-	i915->vbt.crt_ddc_pin = GMBUS_PIN_VGADDC;
+	i915->display.vbt.crt_ddc_pin = GMBUS_PIN_VGADDC;
 
 	/* general features */
-	i915->vbt.int_tv_support = 1;
-	i915->vbt.int_crt_support = 1;
+	i915->display.vbt.int_tv_support = 1;
+	i915->display.vbt.int_crt_support = 1;
 
 	/* driver features */
-	i915->vbt.int_lvds_support = 1;
+	i915->display.vbt.int_lvds_support = 1;
 
 	/* Default to using SSC */
-	i915->vbt.lvds_use_ssc = 1;
+	i915->display.vbt.lvds_use_ssc = 1;
 	/*
 	 * Core/SandyBridge/IvyBridge use alternative (120MHz) reference
 	 * clock for LVDS.
 	 */
-	i915->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(i915,
-							   !HAS_PCH_SPLIT(i915));
+	i915->display.vbt.lvds_ssc_freq = intel_bios_ssc_frequency(i915,
+								   !HAS_PCH_SPLIT(i915));
 	drm_dbg_kms(&i915->drm, "Set default to SSC at %d kHz\n",
-		    i915->vbt.lvds_ssc_freq);
+		    i915->display.vbt.lvds_ssc_freq);
 }
 
 /* Common defaults which may be overridden by VBT. */
···
 		if (port == PORT_A)
 			child->device_type |= DEVICE_TYPE_INTERNAL_CONNECTOR;
 
-		list_add_tail(&devdata->node, &i915->vbt.display_devices);
+		list_add_tail(&devdata->node, &i915->display.vbt.display_devices);
 
 		drm_dbg_kms(&i915->drm,
 			    "Generating default VBT child device with type 0x04%x on port %c\n",
···
 	}
 
 	/* Bypass some minimum baseline VBT version checks */
-	i915->vbt.version = 155;
+	i915->display.vbt.version = 155;
 }
 
 static const struct bdb_header *get_bdb_header(const struct vbt_header *vbt)
···
  */
 void intel_bios_init(struct drm_i915_private *i915)
 {
-	const struct vbt_header *vbt = i915->opregion.vbt;
+	const struct vbt_header *vbt = i915->display.opregion.vbt;
 	struct vbt_header *oprom_vbt = NULL;
 	const struct bdb_header *bdb;
 
-	INIT_LIST_HEAD(&i915->vbt.display_devices);
-	INIT_LIST_HEAD(&i915->vbt.bdb_blocks);
+	INIT_LIST_HEAD(&i915->display.vbt.display_devices);
+	INIT_LIST_HEAD(&i915->display.vbt.bdb_blocks);
 
 	if (!HAS_DISPLAY(i915)) {
 		drm_dbg_kms(&i915->drm,
···
 		goto out;
 
 	bdb = get_bdb_header(vbt);
-	i915->vbt.version = bdb->version;
+	i915->display.vbt.version = bdb->version;
 
 	drm_dbg_kms(&i915->drm,
 		    "VBT signature \"%.*s\", BDB version %d\n",
-		    (int)sizeof(vbt->signature), vbt->signature, i915->vbt.version);
+		    (int)sizeof(vbt->signature), vbt->signature, i915->display.vbt.version);
 
 	init_bdb_blocks(i915, bdb);
 
···
 	struct intel_bios_encoder_data *devdata, *nd;
 	struct bdb_block_entry *entry, *ne;
 
-	list_for_each_entry_safe(devdata, nd, &i915->vbt.display_devices, node) {
+	list_for_each_entry_safe(devdata, nd, &i915->display.vbt.display_devices, node) {
 		list_del(&devdata->node);
 		kfree(devdata->dsc);
 		kfree(devdata);
 	}
 
-	list_for_each_entry_safe(entry, ne, &i915->vbt.bdb_blocks, node) {
+	list_for_each_entry_safe(entry, ne, &i915->display.vbt.bdb_blocks, node) {
 		list_del(&entry->node);
 		kfree(entry);
 	}
···
 	const struct intel_bios_encoder_data *devdata;
 	const struct child_device_config *child;
 
-	if (!i915->vbt.int_tv_support)
+	if (!i915->display.vbt.int_tv_support)
 		return false;
 
-	if (list_empty(&i915->vbt.display_devices))
+	if (list_empty(&i915->display.vbt.display_devices))
 		return true;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		/*
···
 	const struct intel_bios_encoder_data *devdata;
 	const struct child_device_config *child;
 
-	if (list_empty(&i915->vbt.display_devices))
+	if (list_empty(&i915->display.vbt.display_devices))
 		return true;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		/* If the device type is not LFP, continue.
···
 		 * additional data.  Trust that if the VBT was written into
 		 * the OpRegion then they have validated the LVDS's existence.
 		 */
-		if (i915->opregion.vbt)
+		if (i915->display.opregion.vbt)
 			return true;
 	}
 
···
 	if (WARN_ON(!has_ddi_port_info(i915)))
 		return true;
 
-	return i915->vbt.ports[port];
+	return i915->display.vbt.ports[port];
 }
 
 /**
···
 	const struct child_device_config *child;
 	u8 dvo_port;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		if (!(child->device_type & DEVICE_TYPE_MIPI_OUTPUT))
···
 	const struct intel_bios_encoder_data *devdata;
 	const struct child_device_config *child;
 
-	list_for_each_entry(devdata, &i915->vbt.display_devices, node) {
+	list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) {
 		child = &devdata->child;
 
 		if (!(child->device_type & DEVICE_TYPE_MIPI_OUTPUT))
···
 intel_bios_is_port_hpd_inverted(const struct drm_i915_private *i915,
 				enum port port)
 {
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[port];
 
 	if (drm_WARN_ON_ONCE(&i915->drm,
 			     !IS_GEMINILAKE(i915) && !IS_BROXTON(i915)))
···
 intel_bios_is_lspcon_present(const struct drm_i915_private *i915,
 			     enum port port)
 {
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[port];
 
 	return HAS_LSPCON(i915) && devdata && devdata->child.lspcon;
 }
···
 intel_bios_is_lane_reversal_needed(const struct drm_i915_private *i915,
 				   enum port port)
 {
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[port];
 
 	return devdata && devdata->child.lane_reversal;
 }
···
 enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
 				   enum port port)
 {
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[port];
 	enum aux_ch aux_ch;
 
 	if (!devdata || !devdata->child.aux_channel) {
···
 int intel_bios_max_tmds_clock(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[encoder->port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
 
 	return _intel_bios_max_tmds_clock(devdata);
 }
···
 int intel_bios_hdmi_level_shift(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[encoder->port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
 
 	return _intel_bios_hdmi_level_shift(devdata);
 }
 
 int intel_bios_encoder_dp_boost_level(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 196 || !devdata->child.iboost)
+	if (!devdata || devdata->i915->display.vbt.version < 196 || !devdata->child.iboost)
 		return 0;
 
 	return translate_iboost(devdata->child.dp_iboost_level);
···
 
 int intel_bios_encoder_hdmi_boost_level(const struct intel_bios_encoder_data *devdata)
 {
-	if (!devdata || devdata->i915->vbt.version < 196 || !devdata->child.iboost)
+	if (!devdata || devdata->i915->display.vbt.version < 196 || !devdata->child.iboost)
 		return 0;
 
 	return translate_iboost(devdata->child.hdmi_iboost_level);
···
 int intel_bios_dp_max_link_rate(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[encoder->port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
 
 	return _intel_bios_dp_max_link_rate(devdata);
+}
+
+int intel_bios_dp_max_lane_count(struct intel_encoder *encoder)
+{
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
+
+	return _intel_bios_dp_max_lane_count(devdata);
 }
 
 int intel_bios_alternate_ddc_pin(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	const struct intel_bios_encoder_data *devdata = i915->vbt.ports[encoder->port];
+	const struct intel_bios_encoder_data *devdata = i915->display.vbt.ports[encoder->port];
 
 	if (!devdata || !devdata->child.ddc_pin)
 		return 0;
···
 
 bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata)
 {
-	return devdata->i915->vbt.version >= 195 && devdata->child.dp_usb_type_c;
+	return devdata->i915->display.vbt.version >= 195 && devdata->child.dp_usb_type_c;
 }
 
 bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata)
 {
-	return devdata->i915->vbt.version >= 209 && devdata->child.tbt;
+	return devdata->i915->display.vbt.version >= 209 && devdata->child.tbt;
 }
 
 const struct intel_bios_encoder_data *
 intel_bios_encoder_data_lookup(struct drm_i915_private *i915, enum port port)
 {
-	return i915->vbt.ports[port];
+	return i915->display.vbt.ports[port];
 }

drivers/gpu/drm/i915/display/intel_bios.h

···
 int intel_bios_max_tmds_clock(struct intel_encoder *encoder);
 int intel_bios_hdmi_level_shift(struct intel_encoder *encoder);
 int intel_bios_dp_max_link_rate(struct intel_encoder *encoder);
+int intel_bios_dp_max_lane_count(struct intel_encoder *encoder);
 int intel_bios_alternate_ddc_pin(struct intel_encoder *encoder);
 bool intel_bios_port_supports_typec_usb(struct drm_i915_private *i915, enum port port);
 bool intel_bios_port_supports_tbt(struct drm_i915_private *i915, enum port port);

drivers/gpu/drm/i915/display/intel_bw.c

···
 
 #include <drm/drm_atomic_state_helper.h>
 
+#include "i915_drv.h"
 #include "i915_reg.h"
 #include "i915_utils.h"
 #include "intel_atomic.h"
 #include "intel_bw.h"
 #include "intel_cdclk.h"
+#include "intel_display_core.h"
 #include "intel_display_types.h"
+#include "skl_watermark.h"
 #include "intel_mchbar_regs.h"
 #include "intel_pcode.h"
-#include "intel_pm.h"
 
 /* Parameters for Qclk Geyserville (QGV) */
 struct intel_qgv_point {
···
 	return 0;
 }
 
+static int mtl_read_qgv_point_info(struct drm_i915_private *dev_priv,
+				   struct intel_qgv_point *sp, int point)
+{
+	u32 val, val2;
+	u16 dclk;
+
+	val = intel_uncore_read(&dev_priv->uncore,
+				MTL_MEM_SS_INFO_QGV_POINT_LOW(point));
+	val2 = intel_uncore_read(&dev_priv->uncore,
+				 MTL_MEM_SS_INFO_QGV_POINT_HIGH(point));
+	dclk = REG_FIELD_GET(MTL_DCLK_MASK, val);
+	sp->dclk = DIV_ROUND_UP((16667 * dclk), 1000);
+	sp->t_rp = REG_FIELD_GET(MTL_TRP_MASK, val);
+	sp->t_rcd = REG_FIELD_GET(MTL_TRCD_MASK, val);
+
+	sp->t_rdpre = REG_FIELD_GET(MTL_TRDPRE_MASK, val2);
+	sp->t_ras = REG_FIELD_GET(MTL_TRAS_MASK, val2);
+
+	sp->t_rc = sp->t_rp + sp->t_ras;
+
+	return 0;
+}
+
+static int
+intel_read_qgv_point_info(struct drm_i915_private *dev_priv,
+			  struct intel_qgv_point *sp,
+			  int point)
+{
+	if (DISPLAY_VER(dev_priv) >= 14)
+		return mtl_read_qgv_point_info(dev_priv, sp, point);
+	else if (IS_DG1(dev_priv))
+		return dg1_mchbar_read_qgv_point_info(dev_priv, sp, point);
+	else
+		return icl_pcode_read_qgv_point_info(dev_priv, sp, point);
+}
+
 static int icl_get_qgv_points(struct drm_i915_private *dev_priv,
 			      struct intel_qgv_info *qi,
 			      bool is_y_tile)
···
 	for (i = 0; i < qi->num_points; i++) {
 		struct intel_qgv_point *sp = &qi->points[i];
 
-		if (IS_DG1(dev_priv))
-			ret = dg1_mchbar_read_qgv_point_info(dev_priv, sp, i);
-		else
-			ret = icl_pcode_read_qgv_point_info(dev_priv, sp, i);
-
+		ret = intel_read_qgv_point_info(dev_priv, sp, i);
 		if (ret)
 			return ret;
 
···
 	int ipqdepth, ipqdepthpch = 16;
 	int dclk_max;
 	int maxdebw;
-	int num_groups = ARRAY_SIZE(dev_priv->max_bw);
+	int num_groups = ARRAY_SIZE(dev_priv->display.bw.max);
 	int i, ret;
 
 	ret = icl_get_qgv_points(dev_priv, &qi, is_y_tile);
···
 	qi.deinterleave = DIV_ROUND_UP(num_channels, is_y_tile ? 4 : 2);
 
 	for (i = 0; i < num_groups; i++) {
-		struct intel_bw_info *bi = &dev_priv->max_bw[i];
+		struct intel_bw_info *bi = &dev_priv->display.bw.max[i];
 		int clpchgroup;
 		int j;
 
···
 	int dclk_max;
 	int maxdebw, peakbw;
 	int clperchgroup;
-	int num_groups = ARRAY_SIZE(dev_priv->max_bw);
+	int num_groups = ARRAY_SIZE(dev_priv->display.bw.max);
 	int i, ret;
 
 	ret = icl_get_qgv_points(dev_priv, &qi, is_y_tile);
···
 	clperchgroup = 4 * DIV_ROUND_UP(8, num_channels) * qi.deinterleave;
 
 	for (i = 0; i < num_groups; i++) {
-		struct intel_bw_info *bi = &dev_priv->max_bw[i];
+		struct intel_bw_info *bi = &dev_priv->display.bw.max[i];
 		struct intel_bw_info *bi_next;
 		int clpchgroup;
 		int j;
···
 		clpchgroup = (sa->deburst * qi.deinterleave / num_channels) << i;
 
 		if (i < num_groups - 1) {
-			bi_next = &dev_priv->max_bw[i + 1];
+			bi_next = &dev_priv->display.bw.max[i + 1];
 
 			if (clpchgroup < clperchgroup)
 				bi_next->num_planes = (ipqdepth - clpchgroup) /
···
 static void dg2_get_bw_info(struct drm_i915_private *i915)
 {
 	unsigned int deratedbw = IS_DG2_G11(i915) ? 38000 : 50000;
-	int num_groups = ARRAY_SIZE(i915->max_bw);
+	int num_groups = ARRAY_SIZE(i915->display.bw.max);
 	int i;
 
 	/*
···
 	 * whereas DG2-G11 platforms have 38 GB/s.
 	 */
 	for (i = 0; i < num_groups; i++) {
-		struct intel_bw_info *bi = &i915->max_bw[i];
+		struct intel_bw_info *bi = &i915->display.bw.max[i];
 
 		bi->num_planes = 1;
 		/* Need only one dummy QGV point per group */
···
 	 */
 	num_planes = max(1, num_planes);
 
-	for (i = 0; i < ARRAY_SIZE(dev_priv->max_bw); i++) {
+	for (i = 0; i < ARRAY_SIZE(dev_priv->display.bw.max); i++) {
 		const struct intel_bw_info *bi =
-			&dev_priv->max_bw[i];
+			&dev_priv->display.bw.max[i];
 
 		/*
 		 * Pcode will not expose all QGV points when
···
 	 */
 	num_planes = max(1, num_planes);
 
-	for (i = ARRAY_SIZE(dev_priv->max_bw) - 1; i >= 0; i--) {
+	for (i = ARRAY_SIZE(dev_priv->display.bw.max) - 1; i >= 0; i--) {
 		const struct intel_bw_info *bi =
-			&dev_priv->max_bw[i];
+			&dev_priv->display.bw.max[i];
 
 		/*
 		 * Pcode will not expose all QGV points when
···
 			return bi->deratedbw[qgv_point];
 	}
 
-	return dev_priv->max_bw[0].deratedbw[qgv_point];
+	return dev_priv->display.bw.max[0].deratedbw[qgv_point];
 }
 
 static unsigned int adl_psf_bw(struct drm_i915_private *dev_priv,
 			       int psf_gv_point)
 {
 	const struct intel_bw_info *bi =
-			&dev_priv->max_bw[0];
+			&dev_priv->display.bw.max[0];
 
 	return bi->psf_bw[psf_gv_point];
 }
···
 	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
 	struct intel_global_state *bw_state;
 
-	bw_state = intel_atomic_get_old_global_obj_state(state, &dev_priv->bw_obj);
+	bw_state = intel_atomic_get_old_global_obj_state(state, &dev_priv->display.bw.obj);
 
 	return to_intel_bw_state(bw_state);
 }
···
 	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
 	struct intel_global_state *bw_state;
 
-	bw_state = intel_atomic_get_new_global_obj_state(state, &dev_priv->bw_obj);
+	bw_state = intel_atomic_get_new_global_obj_state(state, &dev_priv->display.bw.obj);
 
 	return to_intel_bw_state(bw_state);
 }
···
 	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
 	struct intel_global_state *bw_state;
 
-	bw_state = intel_atomic_get_global_obj_state(state, &dev_priv->bw_obj);
+	bw_state = intel_atomic_get_global_obj_state(state, &dev_priv->display.bw.obj);
 	if (IS_ERR(bw_state))
 		return ERR_CAST(bw_state);
 
···
 
 static u16 icl_qgv_points_mask(struct drm_i915_private *i915)
 {
-	unsigned int num_psf_gv_points = i915->max_bw[0].num_psf_gv_points;
-	unsigned int num_qgv_points = i915->max_bw[0].num_qgv_points;
+	unsigned int num_psf_gv_points = i915->display.bw.max[0].num_psf_gv_points;
+	unsigned int num_qgv_points = i915->display.bw.max[0].num_qgv_points;
 	u16 qgv_points = 0, psf_points = 0;
 
 	/*
···
 	int i, ret;
 	u16 qgv_points = 0, psf_points = 0;
 	unsigned int max_bw_point = 0, max_bw = 0;
-	unsigned int num_qgv_points = dev_priv->max_bw[0].num_qgv_points;
-	unsigned int num_psf_gv_points = dev_priv->max_bw[0].num_psf_gv_points;
+	unsigned int num_qgv_points = dev_priv->display.bw.max[0].num_qgv_points;
+	unsigned int num_psf_gv_points = dev_priv->display.bw.max[0].num_psf_gv_points;
 	bool changed = false;
 
 	/* FIXME earlier gens need some checks too */
···
 	if (!state)
 		return -ENOMEM;
 
-	intel_atomic_global_obj_init(dev_priv, &dev_priv->bw_obj,
+	intel_atomic_global_obj_init(dev_priv, &dev_priv->display.bw.obj,
 				     &state->base, &intel_bw_funcs);
 
 	return 0;

drivers/gpu/drm/i915/display/intel_cdclk.c

···
 	else
 		default_credits = PFI_CREDIT(8);
 
-	if (dev_priv->cdclk.hw.cdclk >= dev_priv->czclk_freq) {
+	if (dev_priv->display.cdclk.hw.cdclk >= dev_priv->czclk_freq) {
 		/* CHV suggested value is 31 or 63 */
 		if (IS_CHERRYVIEW(dev_priv))
 			credits = PFI_CREDIT_63;
···
 	if (intel_de_wait_for_set(dev_priv, LCPLL1_CTL, LCPLL_PLL_LOCK, 5))
 		drm_err(&dev_priv->drm, "DPLL0 not locked\n");
 
-	dev_priv->cdclk.hw.vco = vco;
+	dev_priv->display.cdclk.hw.vco = vco;
 
 	/* We'll want to keep using the current vco from now on. */
 	skl_set_preferred_cdclk_vco(dev_priv, vco);
···
 	if (intel_de_wait_for_clear(dev_priv, LCPLL1_CTL, LCPLL_PLL_LOCK, 1))
 		drm_err(&dev_priv->drm, "Couldn't disable DPLL0\n");
 
-	dev_priv->cdclk.hw.vco = 0;
+	dev_priv->display.cdclk.hw.vco = 0;
 }
 
 static u32 skl_cdclk_freq_sel(struct drm_i915_private *dev_priv,
···
 	switch (cdclk) {
 	default:
 		drm_WARN_ON(&dev_priv->drm,
-			    cdclk != dev_priv->cdclk.hw.bypass);
+			    cdclk != dev_priv->display.cdclk.hw.bypass);
 		drm_WARN_ON(&dev_priv->drm, vco != 0);
 		fallthrough;
 	case 308571:
···
 
 	freq_select = skl_cdclk_freq_sel(dev_priv, cdclk, vco);
 
-	if (dev_priv->cdclk.hw.vco != 0 &&
-	    dev_priv->cdclk.hw.vco != vco)
+	if (dev_priv->display.cdclk.hw.vco != 0 &&
+	    dev_priv->display.cdclk.hw.vco != vco)
 		skl_dpll0_disable(dev_priv);
 
 	cdclk_ctl = intel_de_read(dev_priv, CDCLK_CTL);
 
-	if (dev_priv->cdclk.hw.vco != vco) {
+	if (dev_priv->display.cdclk.hw.vco != vco) {
 		/* Wa Display #1183: skl,kbl,cfl */
 		cdclk_ctl &= ~(CDCLK_FREQ_SEL_MASK | CDCLK_FREQ_DECIMAL_MASK);
 		cdclk_ctl |= freq_select | skl_cdclk_decimal(cdclk);
···
 	intel_de_write(dev_priv, CDCLK_CTL, cdclk_ctl);
 	intel_de_posting_read(dev_priv, CDCLK_CTL);
 
-	if (dev_priv->cdclk.hw.vco != vco)
+	if (dev_priv->display.cdclk.hw.vco != vco)
 		skl_dpll0_enable(dev_priv, vco);
 
 	/* Wa Display #1183: skl,kbl,cfl */
···
 		goto sanitize;
 
 	intel_update_cdclk(dev_priv);
-	intel_cdclk_dump_config(dev_priv, &dev_priv->cdclk.hw, "Current CDCLK");
+	intel_cdclk_dump_config(dev_priv, &dev_priv->display.cdclk.hw, "Current CDCLK");
 
 	/* Is PLL enabled and locked ? */
-	if (dev_priv->cdclk.hw.vco == 0 ||
-	    dev_priv->cdclk.hw.cdclk == dev_priv->cdclk.hw.bypass)
+	if (dev_priv->display.cdclk.hw.vco == 0 ||
+	    dev_priv->display.cdclk.hw.cdclk == dev_priv->display.cdclk.hw.bypass)
 		goto sanitize;
 
 	/* DPLL okay; verify the cdclock
···
 	 */
 	cdctl = intel_de_read(dev_priv, CDCLK_CTL);
 	expected = (cdctl & CDCLK_FREQ_SEL_MASK) |
-		skl_cdclk_decimal(dev_priv->cdclk.hw.cdclk);
+		skl_cdclk_decimal(dev_priv->display.cdclk.hw.cdclk);
 	if (cdctl == expected)
 		/* All well; nothing to sanitize */
 		return;
···
 	drm_dbg_kms(&dev_priv->drm, "Sanitizing cdclk programmed by pre-os\n");
 
 	/* force cdclk programming */
-	dev_priv->cdclk.hw.cdclk = 0;
+	dev_priv->display.cdclk.hw.cdclk = 0;
 	/* force full PLL disable + enable */
-	dev_priv->cdclk.hw.vco = -1;
+	dev_priv->display.cdclk.hw.vco = -1;
 }
 
 static void skl_cdclk_init_hw(struct drm_i915_private *dev_priv)
···
 
 	skl_sanitize_cdclk(dev_priv);
 
-	if (dev_priv->cdclk.hw.cdclk != 0 &&
-	    dev_priv->cdclk.hw.vco != 0) {
+	if (dev_priv->display.cdclk.hw.cdclk != 0 &&
+	    dev_priv->display.cdclk.hw.vco != 0) {
 		/*
 		 * Use the current vco as our initial
 		 * guess as to what the preferred vco is.
 		 */
 		if (dev_priv->skl_preferred_vco_freq == 0)
 			skl_set_preferred_cdclk_vco(dev_priv,
-						    dev_priv->cdclk.hw.vco);
+						    dev_priv->display.cdclk.hw.vco);
 		return;
 	}
 
-	cdclk_config = dev_priv->cdclk.hw;
+	cdclk_config = dev_priv->display.cdclk.hw;
 
 	cdclk_config.vco = dev_priv->skl_preferred_vco_freq;
 	if (cdclk_config.vco == 0)
···
 
 static void skl_cdclk_uninit_hw(struct drm_i915_private *dev_priv)
 {
-	struct intel_cdclk_config cdclk_config = dev_priv->cdclk.hw;
+	struct intel_cdclk_config cdclk_config = dev_priv->display.cdclk.hw;
 
 	cdclk_config.cdclk = cdclk_config.bypass;
 	cdclk_config.vco = 0;
···
 
 static int bxt_calc_cdclk(struct drm_i915_private *dev_priv, int min_cdclk)
 {
-	const struct intel_cdclk_vals *table = dev_priv->cdclk.table;
+	const struct intel_cdclk_vals *table = dev_priv->display.cdclk.table;
 	int i;
 
 	for (i = 0; table[i].refclk; i++)
-		if (table[i].refclk == dev_priv->cdclk.hw.ref &&
+		if (table[i].refclk == dev_priv->display.cdclk.hw.ref &&
 		    table[i].cdclk >= min_cdclk)
 			return table[i].cdclk;
 
 	drm_WARN(&dev_priv->drm, 1,
 		 "Cannot satisfy minimum cdclk %d with refclk %u\n",
-		 min_cdclk, dev_priv->cdclk.hw.ref);
+		 min_cdclk, dev_priv->display.cdclk.hw.ref);
 	return 0;
 }
 
 static int bxt_calc_cdclk_pll_vco(struct drm_i915_private *dev_priv, int cdclk)
 {
-	const struct intel_cdclk_vals *table = dev_priv->cdclk.table;
+	const struct intel_cdclk_vals *table = dev_priv->display.cdclk.table;
 	int i;
 
-	if (cdclk == dev_priv->cdclk.hw.bypass)
+	if (cdclk == dev_priv->display.cdclk.hw.bypass)
 		return 0;
 
 	for (i = 0; table[i].refclk; i++)
-		if (table[i].refclk == dev_priv->cdclk.hw.ref &&
+		if (table[i].refclk == dev_priv->display.cdclk.hw.ref &&
 		    table[i].cdclk == cdclk)
-			return dev_priv->cdclk.hw.ref * table[i].ratio;
+			return dev_priv->display.cdclk.hw.ref * table[i].ratio;
 
 	drm_WARN(&dev_priv->drm, 1, "cdclk %d not valid for refclk %u\n",
-		 cdclk, dev_priv->cdclk.hw.ref);
+		 cdclk, dev_priv->display.cdclk.hw.ref);
 	return 0;
 }
 
···
 				    BXT_DE_PLL_ENABLE, BXT_DE_PLL_LOCK, 1))
 		drm_err(&dev_priv->drm, "timeout waiting for DE PLL unlock\n");
 
-	dev_priv->cdclk.hw.vco = 0;
+	dev_priv->display.cdclk.hw.vco = 0;
 }
 
 static void bxt_de_pll_enable(struct drm_i915_private *dev_priv, int vco)
 {
-	int ratio = DIV_ROUND_CLOSEST(vco, dev_priv->cdclk.hw.ref);
+	int ratio = DIV_ROUND_CLOSEST(vco, dev_priv->display.cdclk.hw.ref);
 
 	intel_de_rmw(dev_priv, BXT_DE_PLL_CTL,
 		     BXT_DE_PLL_RATIO_MASK, BXT_DE_PLL_RATIO(ratio));
···
 				  BXT_DE_PLL_ENABLE, BXT_DE_PLL_LOCK, 1))
 		drm_err(&dev_priv->drm, "timeout waiting for DE PLL lock\n");
 
-	dev_priv->cdclk.hw.vco = vco;
+	dev_priv->display.cdclk.hw.vco = vco;
 }
 
 static void icl_cdclk_pll_disable(struct drm_i915_private *dev_priv)
···
 	if (intel_de_wait_for_clear(dev_priv, BXT_DE_PLL_ENABLE, BXT_DE_PLL_LOCK, 1))
 		drm_err(&dev_priv->drm, "timeout waiting for CDCLK PLL unlock\n");
 
-	dev_priv->cdclk.hw.vco = 0;
+	dev_priv->display.cdclk.hw.vco = 0;
 }
 
 static void icl_cdclk_pll_enable(struct drm_i915_private *dev_priv, int vco)
 {
-	int ratio = DIV_ROUND_CLOSEST(vco, dev_priv->cdclk.hw.ref);
+	int ratio = DIV_ROUND_CLOSEST(vco, dev_priv->display.cdclk.hw.ref);
 	u32 val;
 
 	val = ICL_CDCLK_PLL_RATIO(ratio);
···
 	if (intel_de_wait_for_set(dev_priv, BXT_DE_PLL_ENABLE, BXT_DE_PLL_LOCK, 1))
 		drm_err(&dev_priv->drm, "timeout waiting for CDCLK PLL lock\n");
 
-	dev_priv->cdclk.hw.vco = vco;
+	dev_priv->display.cdclk.hw.vco = vco;
 }
 
 static void adlp_cdclk_pll_crawl(struct drm_i915_private *dev_priv, int vco)
 {
-	int ratio = DIV_ROUND_CLOSEST(vco, dev_priv->cdclk.hw.ref);
+	int ratio = DIV_ROUND_CLOSEST(vco, dev_priv->display.cdclk.hw.ref);
 	u32 val;
 
 	/* Write PLL ratio without disabling */
···
 	val &= ~BXT_DE_PLL_FREQ_REQ;
 	intel_de_write(dev_priv, BXT_DE_PLL_ENABLE, val);
 
-	dev_priv->cdclk.hw.vco = vco;
+	dev_priv->display.cdclk.hw.vco = vco;
 }
 
 static u32 bxt_cdclk_cd2x_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
···
 	switch (DIV_ROUND_CLOSEST(vco, cdclk)) {
 	default:
 		drm_WARN_ON(&dev_priv->drm,
-			    cdclk != dev_priv->cdclk.hw.bypass);
+			    cdclk != dev_priv->display.cdclk.hw.bypass);
 		drm_WARN_ON(&dev_priv->drm, vco != 0);
 		fallthrough;
 	case 2:
···
 static u32 cdclk_squash_waveform(struct drm_i915_private *dev_priv,
 				 int cdclk)
 {
-	const struct intel_cdclk_vals *table = dev_priv->cdclk.table;
+	const struct intel_cdclk_vals *table = dev_priv->display.cdclk.table;
 	int i;
 
-	if (cdclk == dev_priv->cdclk.hw.bypass)
+	if (cdclk == dev_priv->display.cdclk.hw.bypass)
 		return 0;
 
 	for (i = 0; table[i].refclk; i++)
-		if (table[i].refclk == dev_priv->cdclk.hw.ref &&
+		if (table[i].refclk == dev_priv->display.cdclk.hw.ref &&
 		    table[i].cdclk == cdclk)
 			return table[i].waveform;
 
 	drm_WARN(&dev_priv->drm, 1, "cdclk %d not valid for refclk %u\n",
-		 cdclk, dev_priv->cdclk.hw.ref);
+		 cdclk, dev_priv->display.cdclk.hw.ref);
 
 	return 0xffff;
 }
···
 		return;
 	}
 
-	if (HAS_CDCLK_CRAWL(dev_priv) && dev_priv->cdclk.hw.vco > 0 && vco > 0) {
-		if (dev_priv->cdclk.hw.vco != vco)
+	if (HAS_CDCLK_CRAWL(dev_priv) && dev_priv->display.cdclk.hw.vco > 0 && vco > 0) {
+		if (dev_priv->display.cdclk.hw.vco != vco)
 			adlp_cdclk_pll_crawl(dev_priv, vco);
 	} else if (DISPLAY_VER(dev_priv) >= 11) {
-		if (dev_priv->cdclk.hw.vco != 0 &&
-		    dev_priv->cdclk.hw.vco != vco)
+		if (dev_priv->display.cdclk.hw.vco != 0 &&
+		    dev_priv->display.cdclk.hw.vco != vco)
 			icl_cdclk_pll_disable(dev_priv);
 
-		if (dev_priv->cdclk.hw.vco != vco)
+		if (dev_priv->display.cdclk.hw.vco != vco)
 			icl_cdclk_pll_enable(dev_priv, vco);
 	} else {
-		if (dev_priv->cdclk.hw.vco != 0 &&
-		    dev_priv->cdclk.hw.vco != vco)
+		if (dev_priv->display.cdclk.hw.vco != 0 &&
+		    dev_priv->display.cdclk.hw.vco != vco)
 			bxt_de_pll_disable(dev_priv);
 
-		if (dev_priv->cdclk.hw.vco != vco)
+		if (dev_priv->display.cdclk.hw.vco != vco)
 			bxt_de_pll_enable(dev_priv, vco);
 	}
 
···
 		 * Can't read out the voltage level :(
 		 * Let's just assume everything is as expected.
 		 */
-		dev_priv->cdclk.hw.voltage_level = cdclk_config->voltage_level;
+		dev_priv->display.cdclk.hw.voltage_level = cdclk_config->voltage_level;
 }
 
 static void bxt_sanitize_cdclk(struct drm_i915_private *dev_priv)
···
 	int cdclk, clock, vco;
 
 	intel_update_cdclk(dev_priv);
-	intel_cdclk_dump_config(dev_priv, &dev_priv->cdclk.hw, "Current CDCLK");
+	intel_cdclk_dump_config(dev_priv, &dev_priv->display.cdclk.hw, "Current CDCLK");
 
-	if (dev_priv->cdclk.hw.vco == 0 ||
-	    dev_priv->cdclk.hw.cdclk == dev_priv->cdclk.hw.bypass)
+	if (dev_priv->display.cdclk.hw.vco == 0 ||
+	    dev_priv->display.cdclk.hw.cdclk == dev_priv->display.cdclk.hw.bypass)
 		goto sanitize;
 
 	/* DPLL okay; verify the cdclock
···
 	cdctl &= ~bxt_cdclk_cd2x_pipe(dev_priv, INVALID_PIPE);
 
 	/* Make sure this is a legal cdclk value for the platform */
-	cdclk = bxt_calc_cdclk(dev_priv, dev_priv->cdclk.hw.cdclk);
-	if (cdclk != dev_priv->cdclk.hw.cdclk)
+	cdclk = bxt_calc_cdclk(dev_priv, dev_priv->display.cdclk.hw.cdclk);
+	if (cdclk != dev_priv->display.cdclk.hw.cdclk)
 		goto sanitize;
 
 	/* Make sure the VCO is correct for the cdclk */
 	vco = bxt_calc_cdclk_pll_vco(dev_priv, cdclk);
-	if (vco != dev_priv->cdclk.hw.vco)
+	if (vco != dev_priv->display.cdclk.hw.vco)
 		goto sanitize;
 
 	expected = skl_cdclk_decimal(cdclk);
 
 	/* Figure out what CD2X divider we should be using for this cdclk */
 	if (has_cdclk_squasher(dev_priv))
-		clock = dev_priv->cdclk.hw.vco / 2;
+		clock = dev_priv->display.cdclk.hw.vco / 2;
 	else
-		clock = dev_priv->cdclk.hw.cdclk;
+		clock = dev_priv->display.cdclk.hw.cdclk;
 
 	expected |= bxt_cdclk_cd2x_div_sel(dev_priv, clock,
-					   dev_priv->cdclk.hw.vco);
+					   dev_priv->display.cdclk.hw.vco);
 
 	/*
 	 * Disable SSA Precharge when CD clock frequency < 500 MHz,
 	 * enable otherwise.
 	 */
 	if ((IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) &&
-	    dev_priv->cdclk.hw.cdclk >= 500000)
+	    dev_priv->display.cdclk.hw.cdclk >= 500000)
 		expected |= BXT_CDCLK_SSA_PRECHARGE_ENABLE;
 
 	if (cdctl == expected)
···
 	drm_dbg_kms(&dev_priv->drm, "Sanitizing cdclk programmed by pre-os\n");
 
 	/* force cdclk programming */
-	dev_priv->cdclk.hw.cdclk = 0;
+	dev_priv->display.cdclk.hw.cdclk = 0;
 
 	/* force full PLL disable + enable */
-	dev_priv->cdclk.hw.vco = -1;
+	dev_priv->display.cdclk.hw.vco = -1;
 }
 
 static void bxt_cdclk_init_hw(struct drm_i915_private *dev_priv)
···
 
 	bxt_sanitize_cdclk(dev_priv);
 
-	if (dev_priv->cdclk.hw.cdclk != 0 &&
-	    dev_priv->cdclk.hw.vco != 0)
+	if (dev_priv->display.cdclk.hw.cdclk != 0 &&
+	    dev_priv->display.cdclk.hw.vco != 0)
 		return;
 
-	cdclk_config = dev_priv->cdclk.hw;
+	cdclk_config = dev_priv->display.cdclk.hw;
 
 	/*
 	 * FIXME:
···
 
 static void bxt_cdclk_uninit_hw(struct drm_i915_private *dev_priv)
 {
-	struct intel_cdclk_config cdclk_config = dev_priv->cdclk.hw;
+	struct intel_cdclk_config cdclk_config = dev_priv->display.cdclk.hw;
 
 	cdclk_config.cdclk = cdclk_config.bypass;
 	cdclk_config.vco = 0;
···
  * intel_cdclk_init_hw - Initialize CDCLK hardware
  * @i915: i915 device
  *
- * Initialize CDCLK. This consists mainly of initializing dev_priv->cdclk.hw and
+ * Initialize CDCLK. This consists mainly of initializing dev_priv->display.cdclk.hw and
  * sanitizing the state of the hardware if needed. This is generally done only
  * during the display core initialization sequence, after which the DMC will
  * take care of turning CDCLK off/on as needed.
···
 {
 	struct intel_encoder *encoder;
 
-	if (!intel_cdclk_changed(&dev_priv->cdclk.hw, cdclk_config))
+	if (!intel_cdclk_changed(&dev_priv->display.cdclk.hw, cdclk_config))
 		return;
 
 	if (drm_WARN_ON_ONCE(&dev_priv->drm, !dev_priv->display.funcs.cdclk->set_cdclk))
···
 	intel_audio_cdclk_change_post(dev_priv);
 
 	if (drm_WARN(&dev_priv->drm,
-		     intel_cdclk_changed(&dev_priv->cdclk.hw, cdclk_config),
+		     intel_cdclk_changed(&dev_priv->display.cdclk.hw, cdclk_config),
 		     "cdclk state doesn't match!\n")) {
-		intel_cdclk_dump_config(dev_priv, &dev_priv->cdclk.hw, "[hw state]");
+		intel_cdclk_dump_config(dev_priv, &dev_priv->display.cdclk.hw, "[hw state]");
 		intel_cdclk_dump_config(dev_priv, cdclk_config, "[sw state]");
 	}
 }
···
 		 */
 		min_cdclk = max_t(int, min_cdclk,
 				  min_t(int, crtc_state->pixel_rate,
-					dev_priv->max_cdclk_freq));
+					dev_priv->display.cdclk.max_cdclk_freq));
 	}
 
 	return min_cdclk;
···
 	for_each_pipe(dev_priv, pipe)
 		min_cdclk = max(cdclk_state->min_cdclk[pipe], min_cdclk);
 
-	if (min_cdclk > dev_priv->max_cdclk_freq) {
+	if (min_cdclk > dev_priv->display.cdclk.max_cdclk_freq) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "required cdclk (%d kHz) exceeds max (%d kHz)\n",
-			    min_cdclk, dev_priv->max_cdclk_freq);
+			    min_cdclk, dev_priv->display.cdclk.max_cdclk_freq);
 		return -EINVAL;
 	}
 
···
 	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
 	struct intel_global_state *cdclk_state;
 
-	cdclk_state = intel_atomic_get_global_obj_state(state, &dev_priv->cdclk.obj);
+	cdclk_state = intel_atomic_get_global_obj_state(state, &dev_priv->display.cdclk.obj);
 	if (IS_ERR(cdclk_state))
 		return ERR_CAST(cdclk_state);
 
···
 	if (!cdclk_state)
 		return -ENOMEM;
 
-	intel_atomic_global_obj_init(dev_priv, &dev_priv->cdclk.obj,
+	intel_atomic_global_obj_init(dev_priv, &dev_priv->display.cdclk.obj,
 				     &cdclk_state->base, &intel_cdclk_funcs);
 
 	return 0;
···
 
 static int intel_compute_max_dotclk(struct drm_i915_private *dev_priv)
 {
-	int max_cdclk_freq = dev_priv->max_cdclk_freq;
+	int max_cdclk_freq = dev_priv->display.cdclk.max_cdclk_freq;
 
 	if (DISPLAY_VER(dev_priv) >= 10)
 		return 2 * max_cdclk_freq;
···
 void intel_update_max_cdclk(struct drm_i915_private *dev_priv)
 {
 	if (IS_JSL_EHL(dev_priv)) {
-		if (dev_priv->cdclk.hw.ref == 24000)
-			dev_priv->max_cdclk_freq = 552000;
+		if (dev_priv->display.cdclk.hw.ref == 24000)
+			dev_priv->display.cdclk.max_cdclk_freq = 552000;
 		else
-			dev_priv->max_cdclk_freq = 556800;
+			dev_priv->display.cdclk.max_cdclk_freq = 556800;
 	} else if (DISPLAY_VER(dev_priv) >= 11) {
-		if (dev_priv->cdclk.hw.ref == 24000)
-			dev_priv->max_cdclk_freq = 648000;
+		if (dev_priv->display.cdclk.hw.ref == 24000)
+			dev_priv->display.cdclk.max_cdclk_freq = 648000;
 		else
-			dev_priv->max_cdclk_freq = 652800;
+			dev_priv->display.cdclk.max_cdclk_freq = 652800;
 	} else if (IS_GEMINILAKE(dev_priv)) {
-		dev_priv->max_cdclk_freq = 316800;
+		dev_priv->display.cdclk.max_cdclk_freq = 316800;
 	} else if (IS_BROXTON(dev_priv)) {
-		dev_priv->max_cdclk_freq = 624000;
+		dev_priv->display.cdclk.max_cdclk_freq = 624000;
 	} else if (DISPLAY_VER(dev_priv) == 9) {
 		u32 limit = intel_de_read(dev_priv, SKL_DFSM) & SKL_DFSM_CDCLK_LIMIT_MASK;
 		int max_cdclk, vco;
···
 		else
 			max_cdclk = 308571;
 
-		dev_priv->max_cdclk_freq = skl_calc_cdclk(max_cdclk, vco);
+		dev_priv->display.cdclk.max_cdclk_freq = skl_calc_cdclk(max_cdclk, vco);
 	} else if (IS_BROADWELL(dev_priv))  {
 		/*
 		 * FIXME with extra cooling we can allow
···
 		 * available? PCI ID, VTB, something else?
 		 */
 		if (intel_de_read(dev_priv, FUSE_STRAP) & HSW_CDCLK_LIMIT)
-			dev_priv->max_cdclk_freq = 450000;
+			dev_priv->display.cdclk.max_cdclk_freq = 450000;
 		else if (IS_BDW_ULX(dev_priv))
-			dev_priv->max_cdclk_freq = 450000;
+			dev_priv->display.cdclk.max_cdclk_freq = 450000;
 		else if (IS_BDW_ULT(dev_priv))
-			dev_priv->max_cdclk_freq = 540000;
+			dev_priv->display.cdclk.max_cdclk_freq = 540000;
 		else
-			dev_priv->max_cdclk_freq = 675000;
+			dev_priv->display.cdclk.max_cdclk_freq = 675000;
 	} else if (IS_CHERRYVIEW(dev_priv)) {
-		dev_priv->max_cdclk_freq = 320000;
+		dev_priv->display.cdclk.max_cdclk_freq = 320000;
 	} else if (IS_VALLEYVIEW(dev_priv)) {
-		dev_priv->max_cdclk_freq = 400000;
+		dev_priv->display.cdclk.max_cdclk_freq = 400000;
 	} else {
 		/* otherwise assume cdclk is fixed */
-		dev_priv->max_cdclk_freq = dev_priv->cdclk.hw.cdclk;
+		dev_priv->display.cdclk.max_cdclk_freq = dev_priv->display.cdclk.hw.cdclk;
 	}
 
 	dev_priv->max_dotclk_freq = intel_compute_max_dotclk(dev_priv);
 
 	drm_dbg(&dev_priv->drm, "Max CD clock rate: %d kHz\n",
-		dev_priv->max_cdclk_freq);
+		dev_priv->display.cdclk.max_cdclk_freq);
 
 	drm_dbg(&dev_priv->drm, "Max dotclock rate: %d kHz\n",
 		dev_priv->max_dotclk_freq);
···
  */
 void intel_update_cdclk(struct drm_i915_private *dev_priv)
 {
-	intel_cdclk_get_cdclk(dev_priv, &dev_priv->cdclk.hw);
+	intel_cdclk_get_cdclk(dev_priv, &dev_priv->display.cdclk.hw);
 
 	/*
 	 * 9:0 CMBUS [sic] CDCLK frequency (cdfreq):
···
 	 */
 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		intel_de_write(dev_priv, GMBUSFREQ_VLV,
-			       DIV_ROUND_UP(dev_priv->cdclk.hw.cdclk, 1000));
+			       DIV_ROUND_UP(dev_priv->display.cdclk.hw.cdclk, 1000));
 }
 
 static int dg1_rawclk(struct drm_i915_private *dev_priv)
···
 {
 	if (IS_DG2(dev_priv)) {
 		dev_priv->display.funcs.cdclk = &tgl_cdclk_funcs;
-		dev_priv->cdclk.table = dg2_cdclk_table;
+		dev_priv->display.cdclk.table = dg2_cdclk_table;
 	} else if (IS_ALDERLAKE_P(dev_priv)) {
 		dev_priv->display.funcs.cdclk = &tgl_cdclk_funcs;
 		/* Wa_22011320316:adl-p[a0] */
 		if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0))
-			dev_priv->cdclk.table = adlp_a_step_cdclk_table;
+			dev_priv->display.cdclk.table = adlp_a_step_cdclk_table;
 		else
-			dev_priv->cdclk.table = adlp_cdclk_table;
+			dev_priv->display.cdclk.table = adlp_cdclk_table;
 	} else if (IS_ROCKETLAKE(dev_priv)) {
 		dev_priv->display.funcs.cdclk = &tgl_cdclk_funcs;
-		dev_priv->cdclk.table = rkl_cdclk_table;
+		dev_priv->display.cdclk.table = rkl_cdclk_table;
 	} else if (DISPLAY_VER(dev_priv) >= 12) {
 		dev_priv->display.funcs.cdclk = &tgl_cdclk_funcs;
-		dev_priv->cdclk.table = icl_cdclk_table;
+		dev_priv->display.cdclk.table = icl_cdclk_table;
 	} else if (IS_JSL_EHL(dev_priv)) {
 		dev_priv->display.funcs.cdclk = &ehl_cdclk_funcs;
-		dev_priv->cdclk.table = icl_cdclk_table;
+		dev_priv->display.cdclk.table = icl_cdclk_table;
 	} else if (DISPLAY_VER(dev_priv) >= 11) {
 		dev_priv->display.funcs.cdclk = &icl_cdclk_funcs;
-		dev_priv->cdclk.table = icl_cdclk_table;
+		dev_priv->display.cdclk.table = icl_cdclk_table;
 	} else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) {
 		dev_priv->display.funcs.cdclk = &bxt_cdclk_funcs;
 		if (IS_GEMINILAKE(dev_priv))
-			dev_priv->cdclk.table = glk_cdclk_table;
+			dev_priv->display.cdclk.table = glk_cdclk_table;
 		else
-			dev_priv->cdclk.table = bxt_cdclk_table;
+			dev_priv->display.cdclk.table = bxt_cdclk_table;
 	} else if (DISPLAY_VER(dev_priv) == 9) {
 		dev_priv->display.funcs.cdclk = &skl_cdclk_funcs;
 	} else if (IS_BROADWELL(dev_priv)) {

drivers/gpu/drm/i915/display/intel_cdclk.h

···
 
 #define to_intel_cdclk_state(x) container_of((x), struct intel_cdclk_state, base)
 #define intel_atomic_get_old_cdclk_state(state) \
-	to_intel_cdclk_state(intel_atomic_get_old_global_obj_state(state, &to_i915(state->base.dev)->cdclk.obj))
+	to_intel_cdclk_state(intel_atomic_get_old_global_obj_state(state, &to_i915(state->base.dev)->display.cdclk.obj))
 #define intel_atomic_get_new_cdclk_state(state) \
-	to_intel_cdclk_state(intel_atomic_get_new_global_obj_state(state, &to_i915(state->base.dev)->cdclk.obj))
+	to_intel_cdclk_state(intel_atomic_get_new_global_obj_state(state, &to_i915(state->base.dev)->display.cdclk.obj))
 
 int intel_cdclk_init(struct drm_i915_private *dev_priv);
 

drivers/gpu/drm/i915/display/intel_color.c

···
 #include "intel_de.h"
 #include "intel_display_types.h"
 #include "intel_dpll.h"
+#include "intel_dsb.h"
 #include "vlv_dsi_pll.h"
 
 struct intel_color_funcs {

drivers/gpu/drm/i915/display/intel_connector.c

···
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct drm_property *prop;
 
-	prop = dev_priv->force_audio_property;
+	prop = dev_priv->display.properties.force_audio;
 	if (prop == NULL) {
 		prop = drm_property_create_enum(dev, 0,
 					   "audio",
···
 		if (prop == NULL)
 			return;
 
-		dev_priv->force_audio_property = prop;
+		dev_priv->display.properties.force_audio = prop;
 	}
 	drm_object_attach_property(&connector->base, prop, 0);
 }
···
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct drm_property *prop;
 
-	prop = dev_priv->broadcast_rgb_property;
+	prop = dev_priv->display.properties.broadcast_rgb;
 	if (prop == NULL) {
 		prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
 					   "Broadcast RGB",
···
 		if (prop == NULL)
 			return;
 
-		dev_priv->broadcast_rgb_property = prop;
+		dev_priv->display.properties.broadcast_rgb = prop;
 	}
 
 	drm_object_attach_property(&connector->base, prop, 0);

drivers/gpu/drm/i915/display/intel_crt.c

···
 #include "intel_gmbus.h"
 #include "intel_hotplug.h"
 #include "intel_pch_display.h"
+#include "intel_pch_refclk.h"
 
 /* Here's the desired hotplug mode */
 #define ADPA_HOTPLUG_BITS (ADPA_CRT_HOTPLUG_PERIOD_128 |		\
···
 	/* FDI must always be 2.7 GHz */
 	pipe_config->port_clock = 135000 * 2;
 
+	adjusted_mode->crtc_clock = lpt_iclkip(pipe_config);
+
 	return 0;
 }
 
···
 	struct i2c_adapter *i2c;
 	bool ret = false;
 
-	BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG);
-
-	i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->vbt.crt_ddc_pin);
+	i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->display.vbt.crt_ddc_pin);
 	edid = intel_crt_get_edid(connector, i2c);
 
 	if (edid) {
···
 	wakeref = intel_display_power_get(dev_priv,
 					  intel_encoder->power_domain);
 
-	i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->vbt.crt_ddc_pin);
+	i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->display.vbt.crt_ddc_pin);
 	ret = intel_crt_ddc_get_modes(connector, i2c);
 	if (ret || !IS_G4X(dev_priv))
 		goto out;
···
 		u32 fdi_config = FDI_RX_POLARITY_REVERSED_LPT |
 				 FDI_RX_LINK_REVERSAL_OVERRIDE;
 
-		dev_priv->fdi_rx_config = intel_de_read(dev_priv,
-							FDI_RX_CTL(PIPE_A)) & fdi_config;
+		dev_priv->display.fdi.rx_config = intel_de_read(dev_priv,
+								FDI_RX_CTL(PIPE_A)) & fdi_config;
 	}
 
 	intel_crt_reset(&crt->base.base);

drivers/gpu/drm/i915/display/intel_cursor.c

···
 #include "intel_fb.h"
 #include "intel_fb_pin.h"
 #include "intel_frontbuffer.h"
-#include "intel_pm.h"
 #include "intel_psr.h"
 #include "intel_sprite.h"
+#include "skl_watermark.h"
 
 /* Cursor formats */
 static const u32 intel_cursor_formats[] = {

drivers/gpu/drm/i915/display/intel_ddi.c

···
 #include "intel_lspcon.h"
 #include "intel_pps.h"
 #include "intel_psr.h"
+#include "intel_quirks.h"
 #include "intel_snps_phy.h"
 #include "intel_sprite.h"
 #include "intel_tc.h"
···
 		MISSING_CASE(val);
 		return 0;
 	}
-}
-
-int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config)
-{
-	int dotclock;
-
-	if (intel_crtc_has_dp_encoder(pipe_config))
-		dotclock = intel_dotclock_calculate(pipe_config->port_clock,
-						    &pipe_config->dp_m_n);
-	else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp > 24)
-		dotclock = pipe_config->port_clock * 24 / pipe_config->pipe_bpp;
-	else
-		dotclock = pipe_config->port_clock;
-
-	if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 &&
-	    !intel_crtc_has_dp_encoder(pipe_config))
-		dotclock *= 2;
-
-	if (pipe_config->pixel_multiplier)
-		dotclock /= pipe_config->pixel_multiplier;
-
-	return dotclock;
 }
 
 static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
···
 
 	intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder), ctl);
 
-	if (dev_priv->quirks & QUIRK_INCREASE_DDI_DISABLED_TIME &&
+	if (intel_has_quirk(dev_priv, QUIRK_INCREASE_DDI_DISABLED_TIME) &&
 	    intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "Quirk Increase DDI disabled time\n");

drivers/gpu/drm/i915/display/intel_display.c

···
 #include "intel_dmc.h"
 #include "intel_dp_link_training.h"
 #include "intel_dpt.h"
+#include "intel_dsb.h"
 #include "intel_fbc.h"
 #include "intel_fbdev.h"
 #include "intel_fdi.h"
···
 #include "i9xx_plane.h"
 #include "skl_scaler.h"
 #include "skl_universal_plane.h"
+#include "skl_watermark.h"
 #include "vlv_dsi.h"
 #include "vlv_dsi_pll.h"
 #include "vlv_dsi_regs.h"
···
 	if (!IS_I830(dev_priv))
 		val &= ~PIPECONF_ENABLE;
 
-	if (DISPLAY_VER(dev_priv) >= 12)
+	if (DISPLAY_VER(dev_priv) >= 14)
+		intel_de_rmw(dev_priv, MTL_CHICKEN_TRANS(cpu_transcoder),
+			     FECSTALL_DIS_DPTSTREAM_DPTTG, 0);
+	else if (DISPLAY_VER(dev_priv) >= 12)
 		intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder),
 			     FECSTALL_DIS_DPTSTREAM_DPTTG, 0);
 
···
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	i915_reg_t reg = CHICKEN_TRANS(crtc_state->cpu_transcoder);
+	enum transcoder transcoder = crtc_state->cpu_transcoder;
+	i915_reg_t reg = DISPLAY_VER(dev_priv) >= 14 ? MTL_CHICKEN_TRANS(transcoder) :
+			 CHICKEN_TRANS(transcoder);
 	u32 val;
 
 	val = intel_de_read(dev_priv, reg);
···
 	intel_mode_from_crtc_timings(pipe_mode, pipe_mode);
 
 	if (DISPLAY_VER(i915) < 4) {
-		clock_limit = i915->max_cdclk_freq * 9 / 10;
+		clock_limit = i915->display.cdclk.max_cdclk_freq * 9 / 10;
 
 		/*
 		 * Enable double wide mode when the dot clock
···
 		intel_atomic_get_new_crtc_state(state, crtc);
 	int ret;
 
+	ret = intel_dpll_crtc_compute_clock(state, crtc);
+	if (ret)
+		return ret;
+
 	ret = intel_crtc_compute_pipe_src(crtc_state);
 	if (ret)
 		return ret;
···
 	}
 }
 
-static void compute_m_n(unsigned int m, unsigned int n,
-			u32 *ret_m, u32 *ret_n,
-			bool constant_n)
+static void compute_m_n(u32 *ret_m, u32 *ret_n,
+			u32 m, u32 n, u32 constant_n)
 {
-	/*
-	 * Several DP dongles in particular seem to be fussy about
-	 * too large link M/N values. Give N value as 0x8000 that
-	 * should be acceptable by specific devices. 0x8000 is the
-	 * specified fixed N value for asynchronous clock mode,
-	 * which the devices expect also in synchronous clock mode.
-	 */
 	if (constant_n)
-		*ret_n = DP_LINK_CONSTANT_N_VALUE;
+		*ret_n = constant_n;
 	else
 		*ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
 
···
 intel_link_compute_m_n(u16 bits_per_pixel, int nlanes,
 		       int pixel_clock, int link_clock,
 		       struct intel_link_m_n *m_n,
-		       bool constant_n, bool fec_enable)
+		       bool fec_enable)
 {
 	u32 data_clock = bits_per_pixel * pixel_clock;
 
 	if (fec_enable)
 		data_clock = intel_dp_mode_to_fec_clock(data_clock);
 
+	/*
+	 * Windows/BIOS uses fixed M/N values always. Follow suit.
+	 *
+	 * Also several DP dongles in particular seem to be fussy
+	 * about too large link M/N values. Presumably the 20bit
+	 * value used by Windows/BIOS is acceptable to everyone.
+	 */
 	m_n->tu = 64;
-	compute_m_n(data_clock,
-		    link_clock * nlanes * 8,
-		    &m_n->data_m, &m_n->data_n,
-		    constant_n);
+	compute_m_n(&m_n->data_m, &m_n->data_n,
+		    data_clock, link_clock * nlanes * 8,
+		    0x8000000);
 
-	compute_m_n(pixel_clock, link_clock,
-		    &m_n->link_m, &m_n->link_n,
-		    constant_n);
+	compute_m_n(&m_n->link_m, &m_n->link_n,
+		    pixel_clock, link_clock,
+		    0x80000);
 }
 
 static void intel_panel_sanitize_ssc(struct drm_i915_private *dev_priv)
···
 						       PCH_DREF_CONTROL) &
 			DREF_SSC1_ENABLE;
 
-		if (dev_priv->vbt.lvds_use_ssc != bios_lvds_use_ssc) {
+		if (dev_priv->display.vbt.lvds_use_ssc != bios_lvds_use_ssc) {
 			drm_dbg_kms(&dev_priv->drm,
 				    "SSC %s by BIOS, overriding VBT which says %s\n",
 				    str_enabled_disabled(bios_lvds_use_ssc),
-				    str_enabled_disabled(dev_priv->vbt.lvds_use_ssc));
-			dev_priv->vbt.lvds_use_ssc = bios_lvds_use_ssc;
+				    str_enabled_disabled(dev_priv->display.vbt.lvds_use_ssc));
+			dev_priv->display.vbt.lvds_use_ssc = bios_lvds_use_ssc;
 		}
 	}
 }
···
 	}
 
 	if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
-		tmp = intel_de_read(dev_priv, CHICKEN_TRANS(pipe_config->cpu_transcoder));
+		tmp = intel_de_read(dev_priv, DISPLAY_VER(dev_priv) >= 14 ?
+				    MTL_CHICKEN_TRANS(pipe_config->cpu_transcoder) :
+				    CHICKEN_TRANS(pipe_config->cpu_transcoder));
 
 		pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
 	} else {
···
 	u32 dpll = pipe_config->dpll_hw_state.dpll;
 
 	if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN)
-		return dev_priv->vbt.lvds_ssc_freq;
+		return dev_priv->display.vbt.lvds_ssc_freq;
 	else if (HAS_PCH_SPLIT(dev_priv))
 		return 120000;
 	else if (DISPLAY_VER(dev_priv) != 2)
···
 	if (!m_n->link_n)
 		return 0;
 
-	return div_u64(mul_u32_u32(m_n->link_m, link_freq), m_n->link_n);
+	return DIV_ROUND_UP_ULL(mul_u32_u32(m_n->link_m, link_freq),
+				m_n->link_n);
+}
+
+int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config)
+{
+	int dotclock;
+
+	if (intel_crtc_has_dp_encoder(pipe_config))
+		dotclock = intel_dotclock_calculate(pipe_config->port_clock,
+						    &pipe_config->dp_m_n);
+	else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp > 24)
+		dotclock = DIV_ROUND_CLOSEST(pipe_config->port_clock * 24,
+					     pipe_config->pipe_bpp);
+	else
+		dotclock = pipe_config->port_clock;
+
+	if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 &&
+	    !intel_crtc_has_dp_encoder(pipe_config))
+		dotclock *= 2;
+
+	if (pipe_config->pixel_multiplier)
+		dotclock /= pipe_config->pixel_multiplier;
+
+	return dotclock;
 }
 
 /* Returns the currently programmed mode of the given encoder. */
···
 
 	/* Display WA #1135: BXT:ALL GLK:ALL */
 	if ((IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) &&
-	    dev_priv->ipc_enabled)
+	    skl_watermark_ipc_enabled(dev_priv))
 		linetime_wm /= 2;
 
 	return min(linetime_wm, 0x1ff);
···
 		crtc_state->update_wm_post = true;
 
 	if (mode_changed) {
-		ret = intel_dpll_crtc_compute_clock(state, crtc);
-		if (ret)
-			return ret;
-
 		ret = intel_dpll_crtc_get_shared_dpll(state, crtc);
 		if (ret)
 			return ret;
···
 }
 
 static bool
-intel_compare_m_n(unsigned int m, unsigned int n,
-		  unsigned int m2, unsigned int n2,
-		  bool exact)
-{
-	if (m == m2 && n == n2)
-		return true;
-
-	if (exact || !m || !n || !m2 || !n2)
-		return false;
-
-	BUILD_BUG_ON(DATA_LINK_M_N_MASK > INT_MAX);
-
-	if (n > n2) {
-		while (n > n2) {
-			m2 <<= 1;
-			n2 <<= 1;
-		}
-	} else if (n < n2) {
-		while (n < n2) {
-			m <<= 1;
-			n <<= 1;
-		}
-	}
-
-	if (n != n2)
-		return false;
-
-	return intel_fuzzy_clock_check(m, m2);
-}
-
-static bool
 intel_compare_link_m_n(const struct intel_link_m_n *m_n,
-		       const struct intel_link_m_n *m2_n2,
-		       bool exact)
+		       const struct intel_link_m_n *m2_n2)
 {
 	return m_n->tu == m2_n2->tu &&
-		intel_compare_m_n(m_n->data_m, m_n->data_n,
-				  m2_n2->data_m, m2_n2->data_n, exact) &&
-		intel_compare_m_n(m_n->link_m, m_n->link_n,
-				  m2_n2->link_m, m2_n2->link_n, exact);
+		m_n->data_m == m2_n2->data_m &&
+		m_n->data_n == m2_n2->data_n &&
+		m_n->link_m == m2_n2->link_m &&
+		m_n->link_n == m2_n2->link_n;
 }
 
 static bool
···
 
 #define PIPE_CONF_CHECK_M_N(name) do { \
 	if (!intel_compare_link_m_n(&current_config->name, \
-				    &pipe_config->name,\
-				    !fastset)) { \
+				    &pipe_config->name)) { \
 		pipe_config_mismatch(fastset, crtc, __stringify(name), \
 				     "(expected tu %i data %i/%i link %i/%i, " \
 				     "found tu %i, data %i/%i link %i/%i)", \
···
  */
 #define PIPE_CONF_CHECK_M_N_ALT(name, alt_name) do { \
 	if (!intel_compare_link_m_n(&current_config->name, \
-				    &pipe_config->name, !fastset) && \
+				    &pipe_config->name) && \
 	    !intel_compare_link_m_n(&current_config->alt_name, \
-				    &pipe_config->name, !fastset)) { \
+				    &pipe_config->name)) { \
 		pipe_config_mismatch(fastset, crtc, __stringify(name), \
 				     "(expected tu %i data %i/%i link %i/%i, " \
 				     "or tu %i data %i/%i link %i/%i, " \
···
 				     (mask), \
 				     current_config->name & (mask), \
 				     pipe_config->name & (mask)); \
-		ret = false; \
-	} \
-} while (0)
-
-#define PIPE_CONF_CHECK_CLOCK_FUZZY(name) do { \
-	if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
-		pipe_config_mismatch(fastset, crtc, __stringify(name), \
-				     "(expected %i, found %i)", \
-				     current_config->name, \
-				     pipe_config->name); \
 		ret = false; \
 	} \
 } while (0)
···
 	PIPE_CONF_CHECK_I(lane_count);
 	PIPE_CONF_CHECK_X(lane_lat_optim_mask);
 
-	if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv)) {
-		PIPE_CONF_CHECK_M_N_ALT(dp_m_n, dp_m2_n2);
+	if (HAS_DOUBLE_BUFFERED_M_N(dev_priv)) {
+		if (!fastset || !pipe_config->seamless_m_n)
+			PIPE_CONF_CHECK_M_N_ALT(dp_m_n, dp_m2_n2);
 	} else {
 		PIPE_CONF_CHECK_M_N(dp_m_n);
 		PIPE_CONF_CHECK_M_N(dp_m2_n2);
···
 		PIPE_CONF_CHECK_RECT(pch_pfit.dst);
 
 		PIPE_CONF_CHECK_I(scaler_state.scaler_id);
-		PIPE_CONF_CHECK_CLOCK_FUZZY(pixel_rate);
+		PIPE_CONF_CHECK_I(pixel_rate);
 
 		PIPE_CONF_CHECK_X(gamma_mode);
 		if (IS_CHERRYVIEW(dev_priv))
···
 	if (IS_G4X(dev_priv) || DISPLAY_VER(dev_priv) >= 5)
 		PIPE_CONF_CHECK_I(pipe_bpp);
 
-	PIPE_CONF_CHECK_CLOCK_FUZZY(hw.pipe_mode.crtc_clock);
-	PIPE_CONF_CHECK_CLOCK_FUZZY(hw.adjusted_mode.crtc_clock);
-	PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
+	if (!fastset || !pipe_config->seamless_m_n) {
+		PIPE_CONF_CHECK_I(hw.pipe_mode.crtc_clock);
+		PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_clock);
+	}
+	PIPE_CONF_CHECK_I(port_clock);
 
 	PIPE_CONF_CHECK_I(min_voltage_level);
 
···
 #undef PIPE_CONF_CHECK_BOOL_INCOMPLETE
 #undef PIPE_CONF_CHECK_P
 #undef PIPE_CONF_CHECK_FLAGS
-#undef PIPE_CONF_CHECK_CLOCK_FUZZY
 #undef PIPE_CONF_CHECK_COLOR_LUT
 #undef PIPE_CONF_CHECK_TIMINGS
 #undef PIPE_CONF_CHECK_RECT
···
 	}
 }
 
-static void intel_modeset_clear_plls(struct intel_atomic_state *state)
-{
-	struct intel_crtc_state *new_crtc_state;
-	struct intel_crtc *crtc;
-	int i;
-
-	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
-		if (!intel_crtc_needs_modeset(new_crtc_state))
-			continue;
-
-		intel_release_shared_dplls(state, crtc);
-	}
-}
-
 /*
  * This implements the workaround described in the "notes" section of the mode
  * set sequence documentation. When going from no pipes or single pipe to
···
 
 	new_crtc_state->uapi.mode_changed = false;
 	new_crtc_state->update_pipe = true;
-}
-
-static void intel_crtc_copy_fastset(const struct intel_crtc_state *old_crtc_state,
-				    struct intel_crtc_state *new_crtc_state)
-{
-	/*
-	 * If we're not doing the full modeset we want to
-	 * keep the current M/N values as they may be
-	 * sufficiently different to the computed values
-	 * to cause problems.
-	 *
-	 * FIXME: should really copy more fuzzy state here
-	 */
-	new_crtc_state->fdi_m_n = old_crtc_state->fdi_m_n;
-	new_crtc_state->dp_m_n = old_crtc_state->dp_m_n;
-	new_crtc_state->dp_m2_n2 = old_crtc_state->dp_m2_n2;
-	new_crtc_state->has_drrs = old_crtc_state->has_drrs;
 }
 
 static int intel_crtc_add_planes_to_state(struct intel_atomic_state *state,
···
 		if (!intel_crtc_needs_modeset(new_crtc_state))
 			continue;
 
-		ret = intel_modeset_pipe_config_late(state, crtc);
-		if (ret)
-			goto fail;
+		if (new_crtc_state->hw.enable) {
+			ret = intel_modeset_pipe_config_late(state, crtc);
+			if (ret)
+				goto fail;
+		}
 
 		intel_crtc_check_fastset(old_crtc_state, new_crtc_state);
 	}
···
 
 	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
 					    new_crtc_state, i) {
-		if (intel_crtc_needs_modeset(new_crtc_state)) {
-			any_ms = true;
-			continue;
-		}
-
-		if (!new_crtc_state->update_pipe)
+		if (!intel_crtc_needs_modeset(new_crtc_state))
 			continue;
 
-		intel_crtc_copy_fastset(old_crtc_state, new_crtc_state);
+		any_ms = true;
+
+		intel_release_shared_dplls(state, crtc);
 	}
 
 	if (any_ms && !check_digital_port_conflicts(state)) {
···
 		ret = intel_modeset_calc_cdclk(state);
 		if (ret)
 			return ret;
-
-		intel_modeset_clear_plls(state);
 	}
 
 	ret = intel_atomic_check_crtcs(state);
···
 	if (DISPLAY_VER(dev_priv) >= 9 ||
 	    IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
 		hsw_set_linetime_wm(new_crtc_state);
+
+	if (new_crtc_state->seamless_m_n)
+		intel_cpu_transcoder_set_m1_n1(crtc, new_crtc_state->cpu_transcoder,
+					       &new_crtc_state->dp_m_n);
 }
 
 static void commit_pipe_pre_planes(struct intel_atomic_state *state,
···
 	struct intel_atomic_state *state, *next;
 	struct llist_node *freed;
 
-	freed = llist_del_all(&dev_priv->atomic_helper.free_list);
+	freed = llist_del_all(&dev_priv->display.atomic_helper.free_list);
 	llist_for_each_entry_safe(state, next, freed, freed)
 		drm_atomic_state_put(&state->base);
 }
···
 static void intel_atomic_helper_free_state_worker(struct work_struct *work)
 {
 	struct drm_i915_private *dev_priv =
-		container_of(work, typeof(*dev_priv), atomic_helper.free_work);
+		container_of(work, typeof(*dev_priv), display.atomic_helper.free_work);
 
 	intel_atomic_helper_free_state(dev_priv);
 }
···
 	case FENCE_FREE:
 		{
 			struct intel_atomic_helper *helper =
-				&to_i915(state->base.dev)->atomic_helper;
+				&to_i915(state->base.dev)->display.atomic_helper;
 
 			if (llist_add(&state->freed, &helper->free_list))
 				schedule_work(&helper->free_work);
···
 
 	i915_sw_fence_commit(&state->commit_ready);
 	if (nonblock && state->modeset) {
-		queue_work(dev_priv->modeset_wq, &state->base.commit_work);
+		queue_work(dev_priv->display.wq.modeset, &state->base.commit_work);
 	} else if (nonblock) {
-		queue_work(dev_priv->flip_wq, &state->base.commit_work);
+		queue_work(dev_priv->display.wq.flip, &state->base.commit_work);
 	} else {
 		if (state->modeset)
-			flush_workqueue(dev_priv->modeset_wq);
+			flush_workqueue(dev_priv->display.wq.modeset);
 		intel_atomic_commit_tail(state);
 	}
 
···
 	if (intel_de_read(dev_priv, DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)
 		return false;
 
-	if (!dev_priv->vbt.int_crt_support)
+	if (!dev_priv->display.vbt.int_crt_support)
 		return false;
 
 	return true;
···
 	} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
 		bool has_edp, has_port;
 
-		if (IS_VALLEYVIEW(dev_priv) && dev_priv->vbt.int_crt_support)
+		if (IS_VALLEYVIEW(dev_priv) && dev_priv->display.vbt.int_crt_support)
 			intel_crt_init(dev_priv);
 
 		/*
···
 	if (!HAS_DISPLAY(i915))
 		return;
 
-	cdclk_state = to_intel_cdclk_state(i915->cdclk.obj.state);
+	cdclk_state = to_intel_cdclk_state(i915->display.cdclk.obj.state);
 
 	intel_update_cdclk(i915);
-	intel_cdclk_dump_config(i915, &i915->cdclk.hw, "Current CDCLK");
-	cdclk_state->logical = cdclk_state->actual = i915->cdclk.hw;
+	intel_cdclk_dump_config(i915, &i915->display.cdclk.hw, "Current CDCLK");
+	cdclk_state->logical = cdclk_state->actual = i915->display.cdclk.hw;
 }
 
 static int sanitize_watermarks_add_affected(struct drm_atomic_state *state)
···
 
 	intel_dmc_ucode_init(i915);
 
-	i915->modeset_wq = alloc_ordered_workqueue("i915_modeset", 0);
-	i915->flip_wq = alloc_workqueue("i915_flip", WQ_HIGHPRI |
-					WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE);
+	i915->display.wq.modeset = alloc_ordered_workqueue("i915_modeset", 0);
+	i915->display.wq.flip = alloc_workqueue("i915_flip", WQ_HIGHPRI |
+						WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE);
 
 	intel_mode_config_init(i915);
 
···
 	if (ret)
 		goto cleanup_vga_client_pw_domain_dmc;
 
-	init_llist_head(&i915->atomic_helper.free_list);
-	INIT_WORK(&i915->atomic_helper.free_work,
+	init_llist_head(&i915->display.atomic_helper.free_list);
+	INIT_WORK(&i915->display.atomic_helper.free_work,
 		  intel_atomic_helper_free_state_worker);
 
 	intel_init_quirks(i915);
···
 
 	intel_hdcp_component_init(i915);
 
-	if (i915->max_cdclk_freq == 0)
+	if (i915->display.cdclk.max_cdclk_freq == 0)
 		intel_update_max_cdclk(i915);
 
 	/*
···
 	intel_hpd_init(i915);
 	intel_hpd_poll_disable(i915);
 
-	intel_init_ipc(i915);
+	skl_watermark_ipc_init(i915);
 
 	return 0;
 }
···
 	if (!ret)
 		ret = __intel_display_resume(i915, state, &ctx);
 
-	intel_enable_ipc(i915);
+	skl_watermark_ipc_update(i915);
 	drm_modeset_drop_locks(&ctx);
 	drm_modeset_acquire_fini(&ctx);
 
···
 	if (!HAS_DISPLAY(i915))
 		return;
 
-	flush_workqueue(i915->flip_wq);
-	flush_workqueue(i915->modeset_wq);
+	flush_workqueue(i915->display.wq.flip);
+	flush_workqueue(i915->display.wq.modeset);
 
-	flush_work(&i915->atomic_helper.free_work);
-	drm_WARN_ON(&i915->drm, !llist_empty(&i915->atomic_helper.free_list));
+	flush_work(&i915->display.atomic_helper.free_work);
+	drm_WARN_ON(&i915->drm, !llist_empty(&i915->display.atomic_helper.free_list));
+
+	/*
+	 * MST topology needs to be suspended so we don't have any calls to
+	 * fbdev after it's finalized. MST will be destroyed later as part of
+	 * drm_mode_config_cleanup()
+	 */
+	intel_dp_mst_suspend(i915);
 }
 
 /* part #2: call after irq uninstall */
···
 	 * poll handlers. Hence disable polling after hpd handling is shut down.
 	 */
 	intel_hpd_poll_fini(i915);
-
-	/*
-	 * MST topology needs to be suspended so we don't have any calls to
-	 * fbdev after it's finalized. MST will be destroyed later as part of
-	 * drm_mode_config_cleanup()
-	 */
-	intel_dp_mst_suspend(i915);
 
 	/* poll work can call into fbdev, hence clean that up afterwards */
 	intel_fbdev_fini(i915);
···
 
 	intel_gmbus_teardown(i915);
 
-	destroy_workqueue(i915->flip_wq);
-	destroy_workqueue(i915->modeset_wq);
+	destroy_workqueue(i915->display.wq.flip);
+	destroy_workqueue(i915->display.wq.modeset);
 
 	intel_fbc_cleanup(i915);
 }

drivers/gpu/drm/i915/display/intel_display.h

···
 void intel_link_compute_m_n(u16 bpp, int nlanes,
 			    int pixel_clock, int link_clock,
 			    struct intel_link_m_n *m_n,
-			    bool constant_n, bool fec_enable);
+			    bool fec_enable);
 u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv,
 			      u32 pixel_format, u64 modifier);
 enum drm_mode_status

drivers/gpu/drm/i915/display/intel_display_core.h

···
 #ifndef __INTEL_DISPLAY_CORE_H__
 #define __INTEL_DISPLAY_CORE_H__
 
+#include <linux/list.h>
+#include <linux/llist.h>
 #include <linux/mutex.h>
 #include <linux/types.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
 
+#include <drm/drm_connector.h>
+
+#include "intel_cdclk.h"
 #include "intel_display.h"
+#include "intel_display_power.h"
 #include "intel_dmc.h"
 #include "intel_dpll_mgr.h"
+#include "intel_fbc.h"
+#include "intel_global_state.h"
 #include "intel_gmbus.h"
+#include "intel_opregion.h"
 #include "intel_pm_types.h"
 
 struct drm_i915_private;
+struct drm_property;
 struct i915_audio_component;
+struct i915_hdcp_comp_master;
 struct intel_atomic_state;
 struct intel_audio_funcs;
+struct intel_bios_encoder_data;
 struct intel_cdclk_funcs;
+struct intel_cdclk_vals;
 struct intel_color_funcs;
 struct intel_crtc;
 struct intel_crtc_state;
···
 struct intel_hotplug_funcs;
 struct intel_initial_plane_config;
 struct intel_overlay;
+
+/* Amount of SAGV/QGV points, BSpec precisely defines this */
+#define I915_NUM_QGV_POINTS 8
+
+/* Amount of PSF GV points, BSpec precisely defines this */
+#define I915_NUM_PSF_GV_POINTS 3
 
 struct intel_display_funcs {
 	/*
···
 	} ref_clks;
 };
 
+struct intel_frontbuffer_tracking {
+	spinlock_t lock;
+
+	/*
+	 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
+	 * scheduled flips.
+	 */
+	unsigned busy_bits;
+	unsigned flip_bits;
+};
+
 struct intel_hotplug {
 	struct delayed_work hotplug_work;
 
···
 	struct workqueue_struct *dp_wq;
 };
 
+struct intel_vbt_data {
+	/* bdb version */
+	u16 version;
+
+	/* Feature bits */
+	unsigned int int_tv_support:1;
+	unsigned int int_crt_support:1;
+	unsigned int lvds_use_ssc:1;
+	unsigned int int_lvds_support:1;
+	unsigned int display_clock_mode:1;
+	unsigned int fdi_rx_polarity_inverted:1;
+	int lvds_ssc_freq;
+	enum drm_panel_orientation orientation;
+
+	bool override_afc_startup;
+	u8 override_afc_startup_val;
+
+	int crt_ddc_pin;
+
+	struct list_head display_devices;
+	struct list_head bdb_blocks;
+
+	struct intel_bios_encoder_data *ports[I915_MAX_PORTS]; /* Non-NULL if port present. */
+	struct sdvo_device_mapping {
+		u8 initialized;
+		u8 dvo_port;
+		u8 slave_addr;
+		u8 dvo_wiring;
+		u8 i2c_pin;
+		u8 ddc_pin;
+	} sdvo_mappings[2];
+};
+
 struct intel_wm {
 	/*
 	 * Raw watermark latency values:
···
 	 * crtc_state->wm.need_postvbl_update.
 	 */
 	struct mutex wm_mutex;
+
+	bool ipc_enabled;
 };
 
 struct intel_display {
···
 	} funcs;
 
 	/* Grouping using anonymous structs. Keep sorted. */
+	struct intel_atomic_helper {
+		struct llist_head free_list;
+		struct work_struct free_work;
+	} atomic_helper;
+
+	struct {
+		/* backlight registers and fields in struct intel_panel */
+		struct mutex lock;
+	} backlight;
+
+	struct {
+		struct intel_global_obj obj;
+
+		struct intel_bw_info {
+			/* for each QGV point */
+			unsigned int deratedbw[I915_NUM_QGV_POINTS];
+			/* for each PSF GV point */
+			unsigned int psf_bw[I915_NUM_PSF_GV_POINTS];
+			u8 num_qgv_points;
+			u8 num_psf_gv_points;
+			u8 num_planes;
+		} max[6];
+	} bw;
+
+	struct {
+		/* The current hardware cdclk configuration */
+		struct intel_cdclk_config hw;
+
+		/* cdclk, divider, and ratio table from bspec */
+		const struct intel_cdclk_vals *table;
+
+		struct intel_global_obj obj;
+
+		unsigned int max_cdclk_freq;
+	} cdclk;
+
+	struct {
+		/* The current hardware dbuf configuration */
+		u8 enabled_slices;
+
+		struct intel_global_obj obj;
+	} dbuf;
+
+	struct {
+		/* VLV/CHV/BXT/GLK DSI MMIO register base address */
+		u32 mmio_base;
+	} dsi;
+
 	struct {
 		/* list of fbdev register on this device */
 		struct intel_fbdev *fbdev;
 		struct work_struct suspend_work;
 	} fbdev;
+
+	struct {
+		unsigned int pll_freq;
+		u32 rx_config;
+	} fdi;
 
 	struct {
 		/*
···
 	} gmbus;
 
 	struct {
+		struct i915_hdcp_comp_master *master;
+		bool comp_added;
+
+		/* Mutex to protect the above hdcp component related values. */
+		struct mutex comp_mutex;
+	} hdcp;
+
+	struct {
+		struct i915_power_domains domains;
+
+		/* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
+		u32 chv_phy_control;
+
+		/* perform PHY state sanity checks? */
+		bool chv_phy_assert[2];
+	} power;
+
+	struct {
 		u32 mmio_base;
 
 		/* protects panel power sequencer state */
 		struct mutex mutex;
 	} pps;
+
+	struct {
+		struct drm_property *broadcast_rgb;
+		struct drm_property *force_audio;
+	} properties;
+
+	struct {
+		unsigned long mask;
+	} quirks;
 
 	struct {
 		enum {
···
 		u32 block_time_us;
 	} sagv;
 
+	struct {
+		/* ordered wq for modesets */
+		struct workqueue_struct *modeset;
+
+		/* unbound hipri wq for page flips/plane updates */
+		struct workqueue_struct *flip;
+	} wq;
+
 	/* Grouping using named structs. Keep sorted. */
 	struct intel_audio audio;
 	struct intel_dmc dmc;
 	struct intel_dpll dpll;
+	struct intel_fbc *fbc[I915_MAX_FBCS];
+	struct intel_frontbuffer_tracking fb_tracking;
 	struct intel_hotplug hotplug;
+	struct intel_opregion opregion;
 	struct intel_overlay *overlay;
+	struct intel_vbt_data vbt;
 	struct intel_wm wm;
 };
 

drivers/gpu/drm/i915/display/intel_display_debugfs.c

···
 #include "intel_pm.h"
 #include "intel_psr.h"
 #include "intel_sprite.h"
+#include "skl_watermark.h"
 
 static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
 {
···
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
 
 	seq_printf(m, "FB tracking busy bits: 0x%08x\n",
-		   dev_priv->fb_tracking.busy_bits);
+		   dev_priv->display.fb_tracking.busy_bits);
 
 	seq_printf(m, "FB tracking flip bits: 0x%08x\n",
-		   dev_priv->fb_tracking.flip_bits);
+		   dev_priv->display.fb_tracking.flip_bits);
 
 	return 0;
 }
···
 
 static int i915_opregion(struct seq_file *m, void *unused)
 {
-	struct intel_opregion *opregion = &node_to_i915(m->private)->opregion;
+	struct drm_i915_private *i915 = node_to_i915(m->private);
+	struct intel_opregion *opregion = &i915->display.opregion;
 
 	if (opregion->header)
 		seq_write(m, opregion->header, OPREGION_SIZE);
···
 
 static int i915_vbt(struct seq_file *m, void *unused)
 {
-	struct intel_opregion *opregion = &node_to_i915(m->private)->opregion;
+	struct drm_i915_private *i915 = node_to_i915(m->private);
+	struct intel_opregion *opregion = &i915->display.opregion;
 
 	if (opregion->vbt)
 		seq_write(m, opregion->vbt, opregion->vbt_size);
···
 
 	return 0;
 }
-
-static int i915_ipc_status_show(struct seq_file *m, void *data)
-{
-	struct drm_i915_private *dev_priv = m->private;
-
-	seq_printf(m, "Isochronous Priority Control: %s\n",
-			str_yes_no(dev_priv->ipc_enabled));
-	return 0;
-}
-
-static int i915_ipc_status_open(struct inode *inode, struct file *file)
-{
-	struct drm_i915_private *dev_priv = inode->i_private;
-
-	if (!HAS_IPC(dev_priv))
-		return -ENODEV;
-
-	return single_open(file, i915_ipc_status_show, dev_priv);
-}
-
-static ssize_t i915_ipc_status_write(struct file *file, const char __user *ubuf,
-				     size_t len, loff_t *offp)
-{
-	struct seq_file *m = file->private_data;
-	struct drm_i915_private *dev_priv = m->private;
-	intel_wakeref_t wakeref;
-	bool enable;
-	int ret;
-
-	ret = kstrtobool_from_user(ubuf, len, &enable);
-	if (ret < 0)
-		return ret;
-
-	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
-		if (!dev_priv->ipc_enabled && enable)
-			drm_info(&dev_priv->drm,
-				 "Enabling IPC: WM will be proper only after next commit\n");
-		dev_priv->ipc_enabled = enable;
-		intel_enable_ipc(dev_priv);
-	}
-
-	return len;
-}
-
-static const struct file_operations i915_ipc_status_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_ipc_status_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.write = i915_ipc_status_write
-};
 
 static int i915_ddb_info(struct seq_file *m, void *unused)
 {
···
 	{"i915_dp_test_active", &i915_displayport_test_active_fops},
 	{"i915_hpd_storm_ctl", &i915_hpd_storm_ctl_fops},
 	{"i915_hpd_short_storm_ctl", &i915_hpd_short_storm_ctl_fops},
-	{"i915_ipc_status", &i915_ipc_status_fops},
 	{"i915_drrs_ctl", &i915_drrs_ctl_fops},
 	{"i915_edp_psr_debug", &i915_edp_psr_debug_fops},
 };
···
 
 	intel_dmc_debugfs_register(i915);
 	intel_fbc_debugfs_register(i915);
+	skl_watermark_ipc_debugfs_register(i915);
 }
 
 static int i915_panel_show(struct seq_file *m, void *data)
···
 	.write = i915_dsc_fec_support_write
 };
 
-static int i915_dsc_bpp_show(struct seq_file *m, void *data)
+static int i915_dsc_bpc_show(struct seq_file *m, void *data)
 {
 	struct drm_connector *connector = m->private;
 	struct drm_device *dev = connector->dev;
···
 	}
 
 	crtc_state = to_intel_crtc_state(crtc->state);
-	seq_printf(m, "Compressed_BPP: %d\n", crtc_state->dsc.compressed_bpp);
+	seq_printf(m, "Input_BPC: %d\n", crtc_state->dsc.config.bits_per_component);
 
 out:	drm_modeset_unlock(&dev->mode_config.connection_mutex);
 
 	return ret;
 }
 
-static ssize_t i915_dsc_bpp_write(struct file *file,
+static ssize_t i915_dsc_bpc_write(struct file *file,
 				  const char __user *ubuf,
 				  size_t len, loff_t *offp)
 {
···
 		((struct seq_file *)file->private_data)->private;
 	struct intel_encoder *encoder = intel_attached_encoder(to_intel_connector(connector));
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-	int dsc_bpp = 0;
+	int dsc_bpc = 0;
 	int ret;
 
-	ret = kstrtoint_from_user(ubuf, len, 0, &dsc_bpp);
+	ret = kstrtoint_from_user(ubuf, len, 0, &dsc_bpc);
 	if (ret < 0)
 		return ret;
 
-	intel_dp->force_dsc_bpp = dsc_bpp;
+	intel_dp->force_dsc_bpc = dsc_bpc;
 	*offp += len;
 
 	return len;
 }
 
-static int i915_dsc_bpp_open(struct inode *inode,
+static int i915_dsc_bpc_open(struct inode *inode,
 			     struct file *file)
 {
-	return single_open(file, i915_dsc_bpp_show,
-			   inode->i_private);
+	return single_open(file, i915_dsc_bpc_show, inode->i_private);
 }
 
-static const struct file_operations i915_dsc_bpp_fops = {
+static const struct file_operations i915_dsc_bpc_fops = {
 	.owner = THIS_MODULE,
-	.open = i915_dsc_bpp_open,
+	.open = i915_dsc_bpc_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
-	.write = i915_dsc_bpp_write
+	.write = i915_dsc_bpc_write
 };
 
 /*
···
 		debugfs_create_file("i915_dsc_fec_support", 0644, root,
 				    connector, &i915_dsc_fec_support_fops);
 
-		debugfs_create_file("i915_dsc_bpp", 0644, root,
-				    connector, &i915_dsc_bpp_fops);
+		debugfs_create_file("i915_dsc_bpc", 0644, root,
+				    connector, &i915_dsc_bpc_fops);
 	}
 
 	if (connector->connector_type == DRM_MODE_CONNECTOR_DSI ||

drivers/gpu/drm/i915/display/intel_display_power.c

···
 #include "intel_mchbar_regs.h"
 #include "intel_pch_refclk.h"
 #include "intel_pcode.h"
-#include "intel_pm.h"
 #include "intel_snps_phy.h"
+#include "skl_watermark.h"
 #include "vlv_sideband.h"
 
 #define for_each_power_domain_well(__dev_priv, __power_well, __domain)	\
···
 	struct i915_power_domains *power_domains;
 	bool ret;
 
-	power_domains = &dev_priv->power_domains;
+	power_domains = &dev_priv->display.power.domains;
 
 	mutex_lock(&power_domains->lock);
 	ret = __intel_display_power_is_enabled(dev_priv, domain);
···
 {
 	struct i915_power_well *power_well;
 	bool dc_off_enabled;
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 
 	mutex_lock(&power_domains->lock);
 	power_well = lookup_power_well(dev_priv, SKL_DISP_DC_OFF);
···
 {
 	struct drm_i915_private *i915 = container_of(power_domains,
 						     struct drm_i915_private,
-						     power_domains);
+						     display.power.domains);
 
 	return !drm_WARN_ON(&i915->drm,
 			    bitmap_intersects(power_domains->async_put_domains[0].bits,
···
 {
 	struct drm_i915_private *i915 = container_of(power_domains,
 						     struct drm_i915_private,
-						     power_domains);
+						     display.power.domains);
 	struct intel_power_domain_mask async_put_mask;
 	enum intel_display_power_domain domain;
 	bool err = false;
···
 {
 	struct drm_i915_private *i915 = container_of(power_domains,
 						     struct drm_i915_private,
-						     power_domains);
+						     display.power.domains);
 	enum intel_display_power_domain domain;
 
 	drm_dbg(&i915->drm, "%s (%d):\n", prefix, bitmap_weight(mask->bits, POWER_DOMAIN_NUM));
···
 {
 	struct drm_i915_private *i915 = container_of(power_domains,
 						     struct drm_i915_private,
-						     power_domains);
+						     display.power.domains);
 
 	drm_dbg(&i915->drm, "async_put_wakeref %u\n",
 		power_domains->async_put_wakeref);
···
 intel_display_power_grab_async_put_ref(struct drm_i915_private *dev_priv,
 				       enum intel_display_power_domain domain)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct intel_power_domain_mask async_put_mask;
 	bool ret = false;
 
···
 __intel_display_power_get_domain(struct drm_i915_private *dev_priv,
 				 enum intel_display_power_domain domain)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct i915_power_well *power_well;
 
 	if (intel_display_power_grab_async_put_ref(dev_priv, domain))
···
 intel_wakeref_t intel_display_power_get(struct drm_i915_private *dev_priv,
 					enum intel_display_power_domain domain)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	intel_wakeref_t wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
 
 	mutex_lock(&power_domains->lock);
···
 intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
 				   enum intel_display_power_domain domain)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	intel_wakeref_t wakeref;
 	bool is_enabled;
 
···
 	const char *name = intel_display_power_domain_str(domain);
 	struct intel_power_domain_mask async_put_mask;
 
-	power_domains = &dev_priv->power_domains;
+	power_domains = &dev_priv->display.power.domains;
 
 	drm_WARN(&dev_priv->drm, !power_domains->domain_use_count[domain],
 		 "Use count on domain %s is already zero\n",
···
 static void __intel_display_power_put(struct drm_i915_private *dev_priv,
 				      enum intel_display_power_domain domain)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 
 	mutex_lock(&power_domains->lock);
 	__intel_display_power_put_domain(dev_priv, domain);
···
 {
 	struct drm_i915_private *i915 = container_of(power_domains,
 						     struct drm_i915_private,
-						     power_domains);
+						     display.power.domains);
 	drm_WARN_ON(&i915->drm, power_domains->async_put_wakeref);
 	power_domains->async_put_wakeref = wakeref;
 	drm_WARN_ON(&i915->drm, !queue_delayed_work(system_unbound_wq,
···
 {
 	struct drm_i915_private *dev_priv =
 		container_of(power_domains, struct drm_i915_private,
-			     power_domains);
+			     display.power.domains);
 	struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
 	enum intel_display_power_domain domain;
 	intel_wakeref_t wakeref;
···
 {
 	struct drm_i915_private *dev_priv =
 		container_of(work, struct drm_i915_private,
-			     power_domains.async_put_work.work);
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+			     display.power.domains.async_put_work.work);
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
 	intel_wakeref_t new_work_wakeref = intel_runtime_pm_get_raw(rpm);
 	intel_wakeref_t old_work_wakeref = 0;
···
 				     enum intel_display_power_domain domain,
 				     intel_wakeref_t wakeref)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 	struct intel_runtime_pm *rpm = &i915->runtime_pm;
 	intel_wakeref_t work_wakeref = intel_runtime_pm_get_raw(rpm);
 
···
  */
 void intel_display_power_flush_work(struct drm_i915_private *i915)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 	struct intel_power_domain_mask async_put_mask;
 	intel_wakeref_t work_wakeref;
 
···
 static void
 intel_display_power_flush_work_sync(struct drm_i915_private *i915)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 
 	intel_display_power_flush_work(i915);
 	cancel_delayed_work_sync(&power_domains->async_put_work);
···
  */
 int intel_power_domains_init(struct drm_i915_private *dev_priv)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 
 	dev_priv->params.disable_power_well =
 		sanitize_disable_power_well_option(dev_priv,
···
  */
 void intel_power_domains_cleanup(struct drm_i915_private *dev_priv)
 {
-	intel_display_power_map_cleanup(&dev_priv->power_domains);
+	intel_display_power_map_cleanup(&dev_priv->display.power.domains);
 }
 
 static void intel_power_domains_sync_hw(struct drm_i915_private *dev_priv)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct i915_power_well *power_well;
 
 	mutex_lock(&power_domains->lock);
···
 void gen9_dbuf_slices_update(struct drm_i915_private *dev_priv,
 			     u8 req_slices)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	u8 slice_mask = INTEL_INFO(dev_priv)->display.dbuf.slice_mask;
 	enum dbuf_slice slice;
 
···
 	for_each_dbuf_slice(dev_priv, slice)
 		gen9_dbuf_slice_set(dev_priv, slice, req_slices & BIT(slice));
 
-	dev_priv->dbuf.enabled_slices = req_slices;
+	dev_priv->display.dbuf.enabled_slices = req_slices;
 
 	mutex_unlock(&power_domains->lock);
 }
 
 static void gen9_dbuf_enable(struct drm_i915_private *dev_priv)
 {
-	dev_priv->dbuf.enabled_slices =
+	dev_priv->display.dbuf.enabled_slices =
 		intel_enabled_dbuf_slices_mask(dev_priv);
 
 	/*
···
 	 * figure out later which slices we have and what we need.
 	 */
 	gen9_dbuf_slices_update(dev_priv, BIT(DBUF_S1) |
-				dev_priv->dbuf.enabled_slices);
+				dev_priv->display.dbuf.enabled_slices);
 }
 
 static void gen9_dbuf_disable(struct drm_i915_private *dev_priv)
···
 	intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
 
 	intel_update_cdclk(dev_priv);
-	intel_cdclk_dump_config(dev_priv, &dev_priv->cdclk.hw, "Current CDCLK");
+	intel_cdclk_dump_config(dev_priv, &dev_priv->display.cdclk.hw, "Current CDCLK");
 }
 
 /*
···
 static void skl_display_core_init(struct drm_i915_private *dev_priv,
 				  bool resume)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct i915_power_well *well;
 
 	gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
···
 
 static void skl_display_core_uninit(struct drm_i915_private *dev_priv)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct i915_power_well *well;
 
 	if (!HAS_DISPLAY(dev_priv))
···
 
 static void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct i915_power_well *well;
 
 	gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
···
 
 static void bxt_display_core_uninit(struct drm_i915_private *dev_priv)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct i915_power_well *well;
 
 	if (!HAS_DISPLAY(dev_priv))
···
 static void icl_display_core_init(struct drm_i915_private *dev_priv,
 				  bool resume)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct i915_power_well *well;
 	u32 val;
 
···
 
 static void icl_display_core_uninit(struct drm_i915_private *dev_priv)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	struct i915_power_well *well;
 
 	if (!HAS_DISPLAY(dev_priv))
···
 	 * power well state and lane status to reconstruct the
 	 * expected initial value.
 	 */
-	dev_priv->chv_phy_control =
+	dev_priv->display.power.chv_phy_control =
 		PHY_LDO_SEQ_DELAY(PHY_LDO_DELAY_600NS, DPIO_PHY0) |
 		PHY_LDO_SEQ_DELAY(PHY_LDO_DELAY_600NS, DPIO_PHY1) |
 		PHY_CH_POWER_MODE(PHY_CH_DEEP_PSR, DPIO_PHY0, DPIO_CH0) |
···
 		if (mask == 0xf)
 			mask = 0x0;
 		else
-			dev_priv->chv_phy_control |=
+			dev_priv->display.power.chv_phy_control |=
 				PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY0, DPIO_CH0);
 
-		dev_priv->chv_phy_control |=
+		dev_priv->display.power.chv_phy_control |=
 			PHY_CH_POWER_DOWN_OVRD(mask, DPIO_PHY0, DPIO_CH0);
 
 		mask = (status & DPLL_PORTC_READY_MASK) >> 4;
 		if (mask == 0xf)
 			mask = 0x0;
 		else
-			dev_priv->chv_phy_control |=
+			dev_priv->display.power.chv_phy_control |=
 				PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY0, DPIO_CH1);
 
-		dev_priv->chv_phy_control |=
+		dev_priv->display.power.chv_phy_control |=
 			PHY_CH_POWER_DOWN_OVRD(mask, DPIO_PHY0, DPIO_CH1);
 
-		dev_priv->chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(DPIO_PHY0);
+		dev_priv->display.power.chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(DPIO_PHY0);
 
-		dev_priv->chv_phy_assert[DPIO_PHY0] = false;
+		dev_priv->display.power.chv_phy_assert[DPIO_PHY0] = false;
 	} else {
-		dev_priv->chv_phy_assert[DPIO_PHY0] = true;
+		dev_priv->display.power.chv_phy_assert[DPIO_PHY0] = true;
 	}
 
 	if (intel_power_well_is_enabled(dev_priv, cmn_d)) {
···
 		if (mask == 0xf)
 			mask = 0x0;
 		else
-			dev_priv->chv_phy_control |=
+			dev_priv->display.power.chv_phy_control |=
 				PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY1, DPIO_CH0);
 
-		dev_priv->chv_phy_control |=
+		dev_priv->display.power.chv_phy_control |=
 			PHY_CH_POWER_DOWN_OVRD(mask, DPIO_PHY1, DPIO_CH0);
 
-		dev_priv->chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(DPIO_PHY1);
+		dev_priv->display.power.chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(DPIO_PHY1);
 
-		dev_priv->chv_phy_assert[DPIO_PHY1] = false;
+		dev_priv->display.power.chv_phy_assert[DPIO_PHY1] = false;
 	} else {
-		dev_priv->chv_phy_assert[DPIO_PHY1] = true;
+		dev_priv->display.power.chv_phy_assert[DPIO_PHY1] = true;
 	}
 
 	drm_dbg_kms(&dev_priv->drm, "Initial PHY_CONTROL=0x%08x\n",
-		    dev_priv->chv_phy_control);
+		    dev_priv->display.power.chv_phy_control);
 
 	/* Defer application of initial phy_control to enabling the powerwell */
 }
···
  */
 void intel_power_domains_init_hw(struct drm_i915_private *i915, bool resume)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 
 	power_domains->initializing = true;
 
···
 	/* Disable power support if the user asked so. */
 	if (!i915->params.disable_power_well) {
 		drm_WARN_ON(&i915->drm, power_domains->disable_wakeref);
-		i915->power_domains.disable_wakeref = intel_display_power_get(i915,
-									      POWER_DOMAIN_INIT);
+		i915->display.power.domains.disable_wakeref = intel_display_power_get(i915,
+										      POWER_DOMAIN_INIT);
 	}
 	intel_power_domains_sync_hw(i915);
 
···
 void intel_power_domains_driver_remove(struct drm_i915_private *i915)
 {
 	intel_wakeref_t wakeref __maybe_unused =
-		fetch_and_zero(&i915->power_domains.init_wakeref);
+		fetch_and_zero(&i915->display.power.domains.init_wakeref);
 
 	/* Remove the refcount we took to keep power well support disabled. */
 	if (!i915->params.disable_power_well)
 		intel_display_power_put(i915, POWER_DOMAIN_INIT,
-					fetch_and_zero(&i915->power_domains.disable_wakeref));
+					fetch_and_zero(&i915->display.power.domains.disable_wakeref));
 
 	intel_display_power_flush_work_sync(i915);
 
···
  */
 void intel_power_domains_sanitize_state(struct drm_i915_private *i915)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 	struct i915_power_well *power_well;
 
 	mutex_lock(&power_domains->lock);
···
 void intel_power_domains_enable(struct drm_i915_private *i915)
 {
 	intel_wakeref_t wakeref __maybe_unused =
-		fetch_and_zero(&i915->power_domains.init_wakeref);
+		fetch_and_zero(&i915->display.power.domains.init_wakeref);
 
 	intel_display_power_put(i915, POWER_DOMAIN_INIT, wakeref);
 	intel_power_domains_verify_state(i915);
···
  */
 void intel_power_domains_disable(struct drm_i915_private *i915)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 
 	drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
 	power_domains->init_wakeref =
···
 void intel_power_domains_suspend(struct drm_i915_private *i915,
 				 enum i915_drm_suspend_mode suspend_mode)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 	intel_wakeref_t wakeref __maybe_unused =
 		fetch_and_zero(&power_domains->init_wakeref);
 
···
 	 */
 	if (!i915->params.disable_power_well)
 		intel_display_power_put(i915, POWER_DOMAIN_INIT,
-					fetch_and_zero(&i915->power_domains.disable_wakeref));
+					fetch_and_zero(&i915->display.power.domains.disable_wakeref));
 
 	intel_display_power_flush_work(i915);
 	intel_power_domains_verify_state(i915);
···
  */
 void intel_power_domains_resume(struct drm_i915_private *i915)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 
 	if (power_domains->display_core_suspended) {
 		intel_power_domains_init_hw(i915, true);
···
 
 static void intel_power_domains_dump_info(struct drm_i915_private *i915)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 	struct i915_power_well *power_well;
 
 	for_each_power_well(i915, power_well) {
···
  */
 static void intel_power_domains_verify_state(struct drm_i915_private *i915)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 	struct i915_power_well *power_well;
 	bool dump_domain_info;
 
···
 
 void intel_display_power_debug(struct drm_i915_private *i915, struct seq_file *m)
 {
-	struct i915_power_domains *power_domains = &i915->power_domains;
+	struct i915_power_domains *power_domains = &i915->display.power.domains;
 	int i;
 
 	mutex_lock(&power_domains->lock);

drivers/gpu/drm/i915/display/intel_display_power_map.c

···
 	I915_PW_DESCRIPTORS(xelpd_power_wells_main),
 };
 
+/*
+ * MTL is based on XELPD power domains with the exception of power gating for:
+ * - DDI_IO (moved to PLL logic)
+ * - AUX and AUX_IO functionality and register access for USBC1-4 (PICA always-on)
+ */
+#define XELPDP_PW_2_POWER_DOMAINS \
+	XELPD_PW_B_POWER_DOMAINS, \
+	XELPD_PW_C_POWER_DOMAINS, \
+	XELPD_PW_D_POWER_DOMAINS, \
+	POWER_DOMAIN_AUDIO_PLAYBACK, \
+	POWER_DOMAIN_VGA, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC1, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC2, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC3, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC4
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_pw_2,
+	XELPDP_PW_2_POWER_DOMAINS,
+	POWER_DOMAIN_INIT);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_dc_off,
+	XELPDP_PW_2_POWER_DOMAINS,
+	POWER_DOMAIN_AUDIO_MMIO,
+	POWER_DOMAIN_MODESET,
+	POWER_DOMAIN_AUX_A,
+	POWER_DOMAIN_AUX_B,
+	POWER_DOMAIN_INIT);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc1,
+	POWER_DOMAIN_AUX_USBC1,
+	POWER_DOMAIN_AUX_TBT1);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc2,
+	POWER_DOMAIN_AUX_USBC2,
+	POWER_DOMAIN_AUX_TBT2);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc3,
+	POWER_DOMAIN_AUX_USBC3,
+	POWER_DOMAIN_AUX_TBT3);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc4,
+	POWER_DOMAIN_AUX_USBC4,
+	POWER_DOMAIN_AUX_TBT4);
+
+static const struct i915_power_well_desc xelpdp_power_wells_main[] = {
+	{
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("DC_off", &xelpdp_pwdoms_dc_off,
+				.id = SKL_DISP_DC_OFF),
+		),
+		.ops = &gen9_dc_off_power_well_ops,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_2", &xelpdp_pwdoms_pw_2,
+				.hsw.idx = ICL_PW_CTL_IDX_PW_2,
+				.id = SKL_DISP_PW_2),
+		),
+		.ops = &hsw_power_well_ops,
+		.has_vga = true,
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_A", &xelpd_pwdoms_pw_a,
+				.hsw.idx = XELPD_PW_CTL_IDX_PW_A),
+		),
+		.ops = &hsw_power_well_ops,
+		.irq_pipe_mask = BIT(PIPE_A),
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_B", &xelpd_pwdoms_pw_b,
+				.hsw.idx = XELPD_PW_CTL_IDX_PW_B),
+		),
+		.ops = &hsw_power_well_ops,
+		.irq_pipe_mask = BIT(PIPE_B),
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_C", &xelpd_pwdoms_pw_c,
+				.hsw.idx = XELPD_PW_CTL_IDX_PW_C),
+		),
+		.ops = &hsw_power_well_ops,
+		.irq_pipe_mask = BIT(PIPE_C),
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_D", &xelpd_pwdoms_pw_d,
+				.hsw.idx = XELPD_PW_CTL_IDX_PW_D),
+		),
+		.ops = &hsw_power_well_ops,
+		.irq_pipe_mask = BIT(PIPE_D),
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("AUX_A", &icl_pwdoms_aux_a, .xelpdp.aux_ch = AUX_CH_A),
+			I915_PW("AUX_B", &icl_pwdoms_aux_b, .xelpdp.aux_ch = AUX_CH_B),
+			I915_PW("AUX_TC1", &xelpdp_pwdoms_aux_tc1, .xelpdp.aux_ch = AUX_CH_USBC1),
+			I915_PW("AUX_TC2", &xelpdp_pwdoms_aux_tc2, .xelpdp.aux_ch = AUX_CH_USBC2),
+			I915_PW("AUX_TC3", &xelpdp_pwdoms_aux_tc3, .xelpdp.aux_ch = AUX_CH_USBC3),
+			I915_PW("AUX_TC4", &xelpdp_pwdoms_aux_tc4, .xelpdp.aux_ch = AUX_CH_USBC4),
+		),
+		.ops = &xelpdp_aux_power_well_ops,
+	},
+};
+
+static const struct i915_power_well_desc_list xelpdp_power_wells[] = {
+	I915_PW_DESCRIPTORS(i9xx_power_wells_always_on),
+	I915_PW_DESCRIPTORS(icl_power_wells_pw_1),
+	I915_PW_DESCRIPTORS(xelpdp_power_wells_main),
+};
+
 static void init_power_well_domains(const struct i915_power_well_instance *inst,
 				    struct i915_power_well *power_well)
 {
···
 {
 	struct drm_i915_private *i915 = container_of(power_domains,
 						     struct drm_i915_private,
-						     power_domains);
+						     display.power.domains);
 	u64 power_well_ids = 0;
 	const struct i915_power_well_desc_list *desc_list;
 	const struct i915_power_well_desc *desc;
···
 {
 	struct drm_i915_private *i915 = container_of(power_domains,
 						     struct drm_i915_private,
-						     power_domains);
+						     display.power.domains);
 	/*
 	 * The enabling order will be from lower to higher indexed wells,
 	 * the disabling order is reversed.
···
 		return 0;
 	}
 
-	if (DISPLAY_VER(i915) >= 13)
+	if (DISPLAY_VER(i915) >= 14)
+		return set_power_wells(power_domains, xelpdp_power_wells);
+	else if (DISPLAY_VER(i915) >= 13)
 		return set_power_wells(power_domains, xelpd_power_wells);
 	else if (IS_DG1(i915))
 		return set_power_wells(power_domains, dg1_power_wells);

drivers/gpu/drm/i915/display/intel_display_power_well.c

···
 #include "intel_dpll.h"
 #include "intel_hotplug.h"
 #include "intel_pcode.h"
-#include "intel_pm.h"
 #include "intel_pps.h"
 #include "intel_tc.h"
 #include "intel_vga.h"
+#include "skl_watermark.h"
 #include "vlv_sideband.h"
 #include "vlv_sideband_reg.h"
 
···
 	drm_WARN(&i915->drm, 1,
 		 "Power well %d not defined for this platform\n",
 		 power_well_id);
-	return &i915->power_domains.power_wells[0];
+	return &i915->display.power.domains.power_wells[0];
 }
 
 void intel_power_well_enable(struct drm_i915_private *i915,
···
 static void gen9_assert_dbuf_enabled(struct drm_i915_private *dev_priv)
 {
 	u8 hw_enabled_dbuf_slices = intel_enabled_dbuf_slices_mask(dev_priv);
-	u8 enabled_dbuf_slices = dev_priv->dbuf.enabled_slices;
+	u8 enabled_dbuf_slices = dev_priv->display.dbuf.enabled_slices;
 
 	drm_WARN(&dev_priv->drm,
 		 hw_enabled_dbuf_slices != enabled_dbuf_slices,
···
 	intel_cdclk_get_cdclk(dev_priv, &cdclk_config);
 	/* Can't read out voltage_level so can't use intel_cdclk_changed() */
 	drm_WARN_ON(&dev_priv->drm,
-		    intel_cdclk_needs_modeset(&dev_priv->cdclk.hw,
+		    intel_cdclk_needs_modeset(&dev_priv->display.cdclk.hw,
 					      &cdclk_config));
 
 	gen9_assert_dbuf_enabled(dev_priv);
···
 	 * (and never recovering) in this case. intel_dsi_post_disable() will
 	 * clear it when we turn off the display.
 	 */
-	val = intel_de_read(dev_priv, DSPCLK_GATE_D);
+	val = intel_de_read(dev_priv, DSPCLK_GATE_D(dev_priv));
 	val &= DPOUNIT_CLOCK_GATE_DISABLE;
 	val |= VRHUNIT_CLOCK_GATE_DISABLE;
-	intel_de_write(dev_priv, DSPCLK_GATE_D, val);
+	intel_de_write(dev_priv, DSPCLK_GATE_D(dev_priv), val);
 
 	/*
 	 * Disable trickle feed and enable pnd deadline calculation
···
 	 * During driver initialization/resume we can avoid restoring the
 	 * part of the HW/SW state that will be inited anyway explicitly.
 	 */
-	if (dev_priv->power_domains.initializing)
+	if (dev_priv->display.power.domains.initializing)
 		return;
 
 	intel_hpd_init(dev_priv);
···
 		lookup_power_well(dev_priv, VLV_DISP_PW_DPIO_CMN_BC);
 	struct i915_power_well *cmn_d =
 		lookup_power_well(dev_priv, CHV_DISP_PW_DPIO_CMN_D);
-	u32 phy_control = dev_priv->chv_phy_control;
+	u32 phy_control = dev_priv->display.power.chv_phy_control;
 	u32 phy_status = 0;
 	u32 phy_status_mask = 0xffffffff;
 
···
 	 * reset (ie. the power well has been disabled at
 	 * least once).
 	 */
-	if (!dev_priv->chv_phy_assert[DPIO_PHY0])
+	if (!dev_priv->display.power.chv_phy_assert[DPIO_PHY0])
 		phy_status_mask &= ~(PHY_STATUS_CMN_LDO(DPIO_PHY0, DPIO_CH0) |
 				     PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH0, 0) |
 				     PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH0, 1) |
···
 				     PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH1, 0) |
 				     PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH1, 1));
 
-	if (!dev_priv->chv_phy_assert[DPIO_PHY1])
+	if (!dev_priv->display.power.chv_phy_assert[DPIO_PHY1])
 		phy_status_mask &= ~(PHY_STATUS_CMN_LDO(DPIO_PHY1, DPIO_CH0) |
 				     PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 0) |
 				     PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 1));
···
 		drm_err(&dev_priv->drm,
 			"Unexpected PHY_STATUS 0x%08x, expected 0x%08x (PHY_CONTROL=0x%08x)\n",
 			intel_de_read(dev_priv, DISPLAY_PHY_STATUS) & phy_status_mask,
-			phy_status, dev_priv->chv_phy_control);
+			phy_status, dev_priv->display.power.chv_phy_control);
 }
 
 #undef BITS_SET
···
 
 	vlv_dpio_put(dev_priv);
 
-	dev_priv->chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(phy);
+	dev_priv->display.power.chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(phy);
 	intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
-		       dev_priv->chv_phy_control);
+		       dev_priv->display.power.chv_phy_control);
 
 	drm_dbg_kms(&dev_priv->drm,
 		    "Enabled DPIO PHY%d (PHY_CONTROL=0x%08x)\n",
-		    phy, dev_priv->chv_phy_control);
+		    phy, dev_priv->display.power.chv_phy_control);
 
 	assert_chv_phy_status(dev_priv);
 }
···
 		assert_pll_disabled(dev_priv, PIPE_C);
 	}
 
-	dev_priv->chv_phy_control &= ~PHY_COM_LANE_RESET_DEASSERT(phy);
+	dev_priv->display.power.chv_phy_control &= ~PHY_COM_LANE_RESET_DEASSERT(phy);
 	intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
-		       dev_priv->chv_phy_control);
+		       dev_priv->display.power.chv_phy_control);
 
 	vlv_set_power_well(dev_priv, power_well, false);
 
 	drm_dbg_kms(&dev_priv->drm,
 		    "Disabled DPIO PHY%d (PHY_CONTROL=0x%08x)\n",
-		    phy, dev_priv->chv_phy_control);
+		    phy, dev_priv->display.power.chv_phy_control);
 
 	/* PHY is fully reset now, so we can enable the PHY state asserts */
-	dev_priv->chv_phy_assert[phy] = true;
+	dev_priv->display.power.chv_phy_assert[phy] = true;
 
 	assert_chv_phy_status(dev_priv);
 }
···
 	 * reset (ie. the power well has been disabled at
 	 * least once).
 	 */
-	if (!dev_priv->chv_phy_assert[phy])
+	if (!dev_priv->display.power.chv_phy_assert[phy])
 		return;
 
 	if (ch == DPIO_CH0)
···
 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
 			  enum dpio_channel ch, bool override)
 {
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	bool was_override;
 
 	mutex_lock(&power_domains->lock);
 
-	was_override = dev_priv->chv_phy_control & PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
+	was_override = dev_priv->display.power.chv_phy_control & PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
 
 	if (override == was_override)
 		goto out;
 
 	if (override)
-		dev_priv->chv_phy_control |= PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
+		dev_priv->display.power.chv_phy_control |= PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
 	else
-		dev_priv->chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
+		dev_priv->display.power.chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
 
 	intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
-		       dev_priv->chv_phy_control);
+		       dev_priv->display.power.chv_phy_control);
 
 	drm_dbg_kms(&dev_priv->drm,
 		    "Power gating DPIO PHY%d CH%d (DPIO_PHY_CONTROL=0x%08x)\n",
-		    phy, ch, dev_priv->chv_phy_control);
+		    phy, ch, dev_priv->display.power.chv_phy_control);
 
 	assert_chv_phy_status(dev_priv);
 
···
 			     bool override, unsigned int mask)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-	struct i915_power_domains *power_domains = &dev_priv->power_domains;
+	struct i915_power_domains *power_domains = &dev_priv->display.power.domains;
 	enum dpio_phy phy = vlv_dig_port_to_phy(enc_to_dig_port(encoder));
 	enum dpio_channel ch = vlv_dig_port_to_channel(enc_to_dig_port(encoder));
 
 	mutex_lock(&power_domains->lock);
 
-	dev_priv->chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD(0xf, phy, ch);
-	dev_priv->chv_phy_control |= PHY_CH_POWER_DOWN_OVRD(mask, phy, ch);
+	dev_priv->display.power.chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD(0xf, phy, ch);
+	dev_priv->display.power.chv_phy_control |= PHY_CH_POWER_DOWN_OVRD(mask, phy, ch);
 
 	if (override)
-		dev_priv->chv_phy_control |= PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
+		dev_priv->display.power.chv_phy_control |= PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
 	else
-		dev_priv->chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
+		dev_priv->display.power.chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
 
 	intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
-		       dev_priv->chv_phy_control);
+		       dev_priv->display.power.chv_phy_control);
 
 	drm_dbg_kms(&dev_priv->drm,
 		    "Power gating DPIO PHY%d CH%d lanes 0x%x (PHY_CONTROL=0x%08x)\n",
-		    phy, ch, mask, dev_priv->chv_phy_control);
+		    phy, ch, mask, dev_priv->display.power.chv_phy_control);
 
 	assert_chv_phy_status(dev_priv);
 
···
 					struct i915_power_well *power_well)
 {
 	intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
-		       dev_priv->chv_phy_control);
+		       dev_priv->display.power.chv_phy_control);
 }
 
 static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
···
 	return intel_power_well_refcount(power_well);
 }
 
+static void xelpdp_aux_power_well_enable(struct drm_i915_private *dev_priv,
+					 struct i915_power_well *power_well)
+{
+	enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
+
+	intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch),
+		     XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,
+		     XELPDP_DP_AUX_CH_CTL_POWER_REQUEST);
+
+	/*
+	 * The power status flag cannot be used to determine whether aux
+	 * power wells have finished powering up.  Instead we're
+	 * expected to just wait a fixed 600us after raising the request
+	 * bit.
+	 */
+	usleep_range(600, 1200);
+}
+
+static void xelpdp_aux_power_well_disable(struct drm_i915_private *dev_priv,
+					  struct i915_power_well *power_well)
+{
+	enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
+
+	intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch),
+		     XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,
+		     0);
+	usleep_range(10, 30);
+}
+
+static bool xelpdp_aux_power_well_enabled(struct drm_i915_private *dev_priv,
+					  struct i915_power_well *power_well)
+{
+	enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
+
+	return intel_de_read(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch)) &
+		XELPDP_DP_AUX_CH_CTL_POWER_STATUS;
+}
 
 const struct i915_power_well_ops i9xx_always_on_power_well_ops = {
 	.sync_hw = i9xx_power_well_sync_hw_noop,
···
 	.enable = tgl_tc_cold_off_power_well_enable,
 	.disable = tgl_tc_cold_off_power_well_disable,
 	.is_enabled = tgl_tc_cold_off_power_well_is_enabled,
+};
+
+const struct i915_power_well_ops xelpdp_aux_power_well_ops = {
+	.sync_hw = i9xx_power_well_sync_hw_noop,
+	.enable = xelpdp_aux_power_well_enable,
+	.disable = xelpdp_aux_power_well_disable,
+	.is_enabled = xelpdp_aux_power_well_enabled,
 };

drivers/gpu/drm/i915/display/intel_display_power_well.h

···
 struct i915_power_well;
 
 #define for_each_power_well(__dev_priv, __power_well)				\
-	for ((__power_well) = (__dev_priv)->power_domains.power_wells;	\
-	     (__power_well) - (__dev_priv)->power_domains.power_wells <	\
-		(__dev_priv)->power_domains.power_well_count;		\
+	for ((__power_well) = (__dev_priv)->display.power.domains.power_wells;	\
+	     (__power_well) - (__dev_priv)->display.power.domains.power_wells <	\
+		(__dev_priv)->display.power.domains.power_well_count;		\
 	     (__power_well)++)
 
 #define for_each_power_well_reverse(__dev_priv, __power_well)			\
-	for ((__power_well) = (__dev_priv)->power_domains.power_wells +		\
-			      (__dev_priv)->power_domains.power_well_count - 1;	\
-	     (__power_well) - (__dev_priv)->power_domains.power_wells >= 0;	\
+	for ((__power_well) = (__dev_priv)->display.power.domains.power_wells +		\
+			      (__dev_priv)->display.power.domains.power_well_count - 1;	\
+	     (__power_well) - (__dev_priv)->display.power.domains.power_wells >= 0;	\
 	     (__power_well)--)
 
 /*
···
 			 */
 			u8 idx;
 		} hsw;
+		struct {
+			u8 aux_ch;
+		} xelpdp;
 	};
 };
 
···
 extern const struct i915_power_well_ops icl_aux_power_well_ops;
 extern const struct i915_power_well_ops icl_ddi_power_well_ops;
 extern const struct i915_power_well_ops tgl_tc_cold_off_ops;
+extern const struct i915_power_well_ops xelpdp_aux_power_well_ops;
 
 #endif

drivers/gpu/drm/i915/display/intel_display_types.h

···
 	/* m2_n2 for eDP downclock */
 	struct intel_link_m_n dp_m2_n2;
 	bool has_drrs;
+	bool seamless_m_n;
 
 	/* PSR is supported but might not be enabled due the lack of enabled planes */
 	bool has_psr;
···
 
 	/* Display stream compression testing */
 	bool force_dsc_en;
-	int force_dsc_bpp;
+	int force_dsc_bpc;
 
 	bool hobl_failed;
 	bool hobl_active;

drivers/gpu/drm/i915/display/intel_dp.c

···
 	return intel_dp_common_rate(intel_dp, intel_dp->num_common_rates - 1);
 }
 
+static int intel_dp_max_source_lane_count(struct intel_digital_port *dig_port)
+{
+	int vbt_max_lanes = intel_bios_dp_max_lane_count(&dig_port->base);
+	int max_lanes = dig_port->max_lanes;
+
+	if (vbt_max_lanes)
+		max_lanes = min(max_lanes, vbt_max_lanes);
+
+	return max_lanes;
+}
+
 /* Theoretical max between source and sink */
 static int intel_dp_max_common_lane_count(struct intel_dp *intel_dp)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
-	int source_max = dig_port->max_lanes;
+	int source_max = intel_dp_max_source_lane_count(dig_port);
 	int sink_max = intel_dp->max_sink_lane_count;
 	int fia_max = intel_tc_port_fia_max_lane_count(dig_port);
 	int lttpr_max = drm_dp_lttpr_max_lane_count(intel_dp->lttpr_common_caps);
···
 	return intel_dp_is_edp(intel_dp) ? 810000 : 1350000;
 }
 
-static bool is_low_voltage_sku(struct drm_i915_private *i915, enum phy phy)
-{
-	u32 voltage;
-
-	voltage = intel_de_read(i915, ICL_PORT_COMP_DW3(phy)) & VOLTAGE_INFO_MASK;
-
-	return voltage == VOLTAGE_INFO_0_85V;
-}
-
 static int icl_max_source_rate(struct intel_dp *intel_dp)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
 	enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port);
 
-	if (intel_phy_is_combo(dev_priv, phy) &&
-	    (is_low_voltage_sku(dev_priv, phy) || !intel_dp_is_edp(intel_dp)))
+	if (intel_phy_is_combo(dev_priv, phy) && !intel_dp_is_edp(intel_dp))
 		return 540000;
 
 	return 810000;
···
 
 static int ehl_max_source_rate(struct intel_dp *intel_dp)
 {
-	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
-	struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
-	enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port);
-
-	if (intel_dp_is_edp(intel_dp) || is_low_voltage_sku(dev_priv, phy))
-		return 540000;
-
-	return 810000;
-}
-
-static int dg1_max_source_rate(struct intel_dp *intel_dp)
-{
-	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
-	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
-	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
-
-	if (intel_phy_is_combo(i915, phy) && is_low_voltage_sku(i915, phy))
+	if (intel_dp_is_edp(intel_dp))
 		return 540000;
 
 	return 810000;
···
 			max_rate = dg2_max_source_rate(intel_dp);
 		else if (IS_ALDERLAKE_P(dev_priv) || IS_ALDERLAKE_S(dev_priv) ||
 			 IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
-			max_rate = dg1_max_source_rate(intel_dp);
+			max_rate = 810000;
 		else if (IS_JSL_EHL(dev_priv))
 			max_rate = ehl_max_source_rate(intel_dp);
 		else
···
 
 	if (bigjoiner) {
 		u32 max_bpp_bigjoiner =
-			i915->max_cdclk_freq * 48 /
+			i915->display.cdclk.max_cdclk_freq * 48 /
 			intel_dp_mode_to_fec_clock(mode_clock);
 
 		bits_per_pixel = min(bits_per_pixel, max_bpp_bigjoiner);
···
 	}
 }
 
+static bool has_seamless_m_n(struct intel_connector *connector)
+{
+	struct drm_i915_private *i915 = to_i915(connector->base.dev);
+
+	/*
+	 * Seamless M/N reprogramming only implemented
+	 * for BDW+ double buffered M/N registers so far.
+	 */
+	return HAS_DOUBLE_BUFFERED_M_N(i915) &&
+		intel_panel_drrs_type(connector) == DRRS_TYPE_SEAMLESS;
+}
+
+static int intel_dp_mode_clock(const struct intel_crtc_state *crtc_state,
+			       const struct drm_connector_state *conn_state)
+{
+	struct intel_connector *connector = to_intel_connector(conn_state->connector);
+	const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
+
+	/* FIXME a bit of a mess wrt clock vs. crtc_clock */
+	if (has_seamless_m_n(connector))
+		return intel_panel_highest_mode(connector, adjusted_mode)->clock;
+	else
+		return adjusted_mode->crtc_clock;
+}
+
 /* Optimize link config in order: max bpp, min clock, min lanes */
 static int
 intel_dp_compute_link_config_wide(struct intel_dp *intel_dp,
 				  struct intel_crtc_state *pipe_config,
+				  const struct drm_connector_state *conn_state,
 				  const struct link_config_limits *limits)
 {
-	struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
-	int bpp, i, lane_count;
+	int bpp, i, lane_count, clock = intel_dp_mode_clock(pipe_config, conn_state);
 	int mode_rate, link_rate, link_avail;
 
 	for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) {
 		int output_bpp = intel_dp_output_bpp(pipe_config->output_format, bpp);
 
-		mode_rate = intel_dp_link_required(adjusted_mode->crtc_clock,
-						   output_bpp);
+		mode_rate = intel_dp_link_required(clock, output_bpp);
 
 		for (i = 0; i < intel_dp->num_common_rates; i++) {
 			link_rate = intel_dp_common_rate(intel_dp, i);
···
 	 * DP_DSC_RC_BUF_SIZE for this.
 	 */
 	vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST;
+	vdsc_cfg->pic_height = crtc_state->hw.adjusted_mode.crtc_vdisplay;
 
 	/*
 	 * Slice Height of 8 works for all currently available panels. So start
···
 
 	pipe_bpp = intel_dp_dsc_compute_bpp(intel_dp, conn_state->max_requested_bpc);
 
+	if (intel_dp->force_dsc_bpc) {
+		pipe_bpp = intel_dp->force_dsc_bpc * 3;
+		drm_dbg_kms(&dev_priv->drm, "Input DSC BPP forced to %d", pipe_bpp);
+	}
+
 	/* Min Input BPC for ICL+ is 8 */
 	if (pipe_bpp < 8 * 3) {
 		drm_dbg_kms(&dev_priv->drm,
···
 		pipe_config->dsc.slice_count = dsc_dp_slice_count;
 	}
 
-	/* As of today we support DSC for only RGB */
-	if (intel_dp->force_dsc_bpp) {
-		if (intel_dp->force_dsc_bpp >= 8 &&
-		    intel_dp->force_dsc_bpp < pipe_bpp) {
-			drm_dbg_kms(&dev_priv->drm,
-				    "DSC BPP forced to %d",
-				    intel_dp->force_dsc_bpp);
-			pipe_config->dsc.compressed_bpp =
-						intel_dp->force_dsc_bpp;
-		} else {
-			drm_dbg_kms(&dev_priv->drm,
-				    "Invalid DSC BPP %d",
-				    intel_dp->force_dsc_bpp);
-		}
-	}
-
 	/*
 	 * VDSC engine operates at 1 Pixel per clock, so if peak pixel rate
 	 * is greater than the maximum Cdclock and if slice count is even
 	 * then we need to use 2 VDSC instances.
 	 */
-	if (adjusted_mode->crtc_clock > dev_priv->max_cdclk_freq ||
+	if (adjusted_mode->crtc_clock > dev_priv->display.cdclk.max_cdclk_freq ||
 	    pipe_config->bigjoiner_pipes) {
 		if (pipe_config->dsc.slice_count < 2) {
 			drm_dbg_kms(&dev_priv->drm,
···
 	 * Optimize for slow and wide for everything, because there are some
 	 * eDP 1.3 and 1.4 panels don't work well with fast and narrow.
 	 */
-	ret = intel_dp_compute_link_config_wide(intel_dp, pipe_config, &limits);
+	ret = intel_dp_compute_link_config_wide(intel_dp, pipe_config, conn_state, &limits);
 
 	if (ret || joiner_needs_dsc || intel_dp->force_dsc_en) {
 		drm_dbg_kms(&i915->drm, "Try DSC (fallback=%s, joiner=%s, force=%s)\n",
···
 static bool cpu_transcoder_has_drrs(struct drm_i915_private *i915,
 				    enum transcoder cpu_transcoder)
 {
-	/* M1/N1 is double buffered */
-	if (DISPLAY_VER(i915) >= 9 || IS_BROADWELL(i915))
+	if (HAS_DOUBLE_BUFFERED_M_N(i915))
 		return true;
 
 	return intel_cpu_transcoder_has_m2_n2(i915, cpu_transcoder);
···
 static void
 intel_dp_drrs_compute_config(struct intel_connector *connector,
 			     struct intel_crtc_state *pipe_config,
-			     int output_bpp, bool constant_n)
+			     int output_bpp)
 {
 	struct drm_i915_private *i915 = to_i915(connector->base.dev);
 	const struct drm_display_mode *downclock_mode =
 		intel_panel_downclock_mode(connector, &pipe_config->hw.adjusted_mode);
 	int pixel_clock;
+
+	if (has_seamless_m_n(connector))
+		pipe_config->seamless_m_n = true;
 
 	if (!can_enable_drrs(connector, pipe_config, downclock_mode)) {
 		if (intel_cpu_transcoder_has_m2_n2(i915, pipe_config->cpu_transcoder))
···
 
 	intel_link_compute_m_n(output_bpp, pipe_config->lane_count, pixel_clock,
 			       pipe_config->port_clock, &pipe_config->dp_m2_n2,
-			       constant_n, pipe_config->fec_enable);
+			       pipe_config->fec_enable);
 
 	/* FIXME: abstract this better */
 	if (pipe_config->splitter.enable)
···
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 	const struct drm_display_mode *fixed_mode;
 	struct intel_connector *connector = intel_dp->attached_connector;
-	bool constant_n = drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CONSTANT_N);
 	int ret = 0, output_bpp;
 
 	if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv) && encoder->port != PORT_A)
···
 			       adjusted_mode->crtc_clock,
 			       pipe_config->port_clock,
 			       &pipe_config->dp_m_n,
-			       constant_n, pipe_config->fec_enable);
+			       pipe_config->fec_enable);
 
 	/* FIXME: abstract this better */
 	if (pipe_config->splitter.enable)
···
 
 	intel_vrr_compute_config(pipe_config, conn_state);
 	intel_psr_compute_config(intel_dp, pipe_config, conn_state);
-	intel_dp_drrs_compute_config(connector, pipe_config,
-				     output_bpp, constant_n);
+	intel_dp_drrs_compute_config(connector, pipe_config, output_bpp);
 	intel_dp_compute_vsc_sdp(intel_dp, pipe_config, conn_state);
 	intel_dp_compute_hdr_metadata_infoframe_sdp(intel_dp, pipe_config, conn_state);
 
···
 		return;
 
 	drm_connector_set_panel_orientation_with_quirk(&connector->base,
-						       i915->vbt.orientation,
+						       i915->display.vbt.orientation,
 						       fixed_mode->hdisplay,
 						       fixed_mode->vdisplay);
 }

drivers/gpu/drm/i915/display/intel_dp_aux.c

···
 	 * divide by 2000 and use that
 	 */
 	if (dig_port->aux_ch == AUX_CH_A)
-		freq = dev_priv->cdclk.hw.cdclk;
+		freq = dev_priv->display.cdclk.hw.cdclk;
 	else
 		freq = RUNTIME_INFO(dev_priv)->rawclk_freq;
 	return DIV_ROUND_CLOSEST(freq, 2000);
···
 				u32 unused)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	struct drm_i915_private *i915 =	to_i915(dig_port->base.base.dev);
 	u32 ret;
 
 	/*
···
 
 	if (intel_tc_port_in_tbt_alt_mode(dig_port))
 		ret |= DP_AUX_CH_CTL_TBT_IO;
+
+	/*
+	 * Power request bit is already set during aux power well enable.
+	 * Preserve the bit across aux transactions.
+	 */
+	if (DISPLAY_VER(i915) >= 14)
+		ret |= XELPDP_DP_AUX_CH_CTL_POWER_REQUEST;
 
 	return ret;
 }
···
 	}
 }
 
+static i915_reg_t xelpdp_aux_ctl_reg(struct intel_dp *intel_dp)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	enum aux_ch aux_ch = dig_port->aux_ch;
+
+	switch (aux_ch) {
+	case AUX_CH_A:
+	case AUX_CH_B:
+	case AUX_CH_USBC1:
+	case AUX_CH_USBC2:
+	case AUX_CH_USBC3:
+	case AUX_CH_USBC4:
+		return XELPDP_DP_AUX_CH_CTL(aux_ch);
+	default:
+		MISSING_CASE(aux_ch);
+		return XELPDP_DP_AUX_CH_CTL(AUX_CH_A);
+	}
+}
+
+static i915_reg_t xelpdp_aux_data_reg(struct intel_dp *intel_dp, int index)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	enum aux_ch aux_ch = dig_port->aux_ch;
+
+	switch (aux_ch) {
+	case AUX_CH_A:
+	case AUX_CH_B:
+	case AUX_CH_USBC1:
+	case AUX_CH_USBC2:
+	case AUX_CH_USBC3:
+	case AUX_CH_USBC4:
+		return XELPDP_DP_AUX_CH_DATA(aux_ch, index);
+	default:
+		MISSING_CASE(aux_ch);
+		return XELPDP_DP_AUX_CH_DATA(AUX_CH_A, index);
+	}
+}
+
 void intel_dp_aux_fini(struct intel_dp *intel_dp)
 {
 	if (cpu_latency_qos_request_active(&intel_dp->pm_qos))
···
 	struct intel_encoder *encoder = &dig_port->base;
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
-	if (DISPLAY_VER(dev_priv) >= 12) {
+	if (DISPLAY_VER(dev_priv) >= 14) {
+		intel_dp->aux_ch_ctl_reg = xelpdp_aux_ctl_reg;
+		intel_dp->aux_ch_data_reg = xelpdp_aux_data_reg;
+	} else if (DISPLAY_VER(dev_priv) >= 12) {
 		intel_dp->aux_ch_ctl_reg = tgl_aux_ctl_reg;
 		intel_dp->aux_ch_data_reg = tgl_aux_data_reg;
 	} else if (DISPLAY_VER(dev_priv) >= 9) {

drivers/gpu/drm/i915/display/intel_dp_link_training.c

···
 				    DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV] = 0;
 }
 
-static const char *intel_dp_phy_name(enum drm_dp_phy dp_phy,
-				     char *buf, size_t buf_size)
-{
-	if (dp_phy == DP_PHY_DPRX)
-		snprintf(buf, buf_size, "DPRX");
-	else
-		snprintf(buf, buf_size, "LTTPR %d", dp_phy - DP_PHY_LTTPR1 + 1);
-
-	return buf;
-}
-
 static u8 *intel_dp_lttpr_phy_caps(struct intel_dp *intel_dp,
 				   enum drm_dp_phy dp_phy)
 {
···
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	u8 *phy_caps = intel_dp_lttpr_phy_caps(intel_dp, dp_phy);
-	char phy_name[10];
-
-	intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name));
 
 	if (drm_dp_read_lttpr_phy_caps(&intel_dp->aux, dpcd, dp_phy, phy_caps) < 0) {
 		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
 			    "[ENCODER:%d:%s][%s] failed to read the PHY caps\n",
-			    encoder->base.base.id, encoder->base.name, phy_name);
+			    encoder->base.base.id, encoder->base.name,
+			    drm_dp_phy_name(dp_phy));
 		return;
 	}
 
 	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
 		    "[ENCODER:%d:%s][%s] PHY capabilities: %*ph\n",
-		    encoder->base.base.id, encoder->base.name, phy_name,
+		    encoder->base.base.id, encoder->base.name,
+		    drm_dp_phy_name(dp_phy),
 		    (int)sizeof(intel_dp->lttpr_phy_caps[0]),
 		    phy_caps);
 }
···
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	char phy_name[10];
 	int lane;
 
 	if (intel_dp_is_uhbr(crtc_state)) {
 		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
 			    "TX FFE request: " TRAIN_REQ_FMT "\n",
 			    encoder->base.base.id, encoder->base.name,
-			    intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name)),
+			    drm_dp_phy_name(dp_phy),
 			    crtc_state->lane_count,
 			    TRAIN_REQ_TX_FFE_ARGS(link_status));
 	} else {
···
 			    "vswing request: " TRAIN_REQ_FMT ", "
 			    "pre-emphasis request: " TRAIN_REQ_FMT "\n",
 			    encoder->base.base.id, encoder->base.name,
-			    intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name)),
+			    drm_dp_phy_name(dp_phy),
 			    crtc_state->lane_count,
 			    TRAIN_REQ_VSWING_ARGS(link_status),
 			    TRAIN_REQ_PREEMPH_ARGS(link_status));
···
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 train_pat = intel_dp_training_pattern_symbol(dp_train_pat);
-	char phy_name[10];
 
 	if (train_pat != DP_TRAINING_PATTERN_DISABLE)
 		drm_dbg_kms(&i915->drm,
 			    "[ENCODER:%d:%s][%s] Using DP training pattern TPS%c\n",
 			    encoder->base.base.id, encoder->base.name,
-			    intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name)),
+			    drm_dp_phy_name(dp_phy),
 			    dp_training_pattern_name(train_pat));
 
 	intel_dp->set_link_train(intel_dp, crtc_state, dp_train_pat);
···
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	char phy_name[10];
 
 	if (intel_dp_is_uhbr(crtc_state)) {
 		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
 			    "TX FFE presets: " TRAIN_SET_FMT "\n",
 			    encoder->base.base.id, encoder->base.name,
-			    intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name)),
+			    drm_dp_phy_name(dp_phy),
 			    crtc_state->lane_count,
 			    TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
 	} else {
···
 			    "vswing levels: " TRAIN_SET_FMT ", "
 			    "pre-emphasis levels: " TRAIN_SET_FMT "\n",
 			    encoder->base.base.id, encoder->base.name,
-			    intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name)),
+			    drm_dp_phy_name(dp_phy),
 			    crtc_state->lane_count,
 			    TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
 			    TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
···
 	intel_dp_compute_rate(intel_dp, crtc_state->port_clock,
 			      &link_bw, &rate_select);
 
+	/*
+	 * WaEdpLinkRateDataReload
+	 *
+	 * Parade PS8461E MUX (used on varius TGL+ laptops) needs
+	 * to snoop the link rates reported by the sink when we
+	 * use LINK_RATE_SET in order to operate in jitter cleaning
+	 * mode (as opposed to redriver mode). Unfortunately it
+	 * loses track of the snooped link rates when powered down,
+	 * so we need to make it re-snoop often. Without this high
+	 * link rates are not stable.
+	 */
+	if (!link_bw) {
+		struct intel_connector *connector = intel_dp->attached_connector;
+		__le16 sink_rates[DP_MAX_SUPPORTED_RATES];
+
+		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Reloading eDP link rates\n",
+			    connector->base.base.id, connector->base.name);
+
+		drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES,
+				 sink_rates, sizeof(sink_rates));
+	}
+
 	if (link_bw)
 		drm_dbg_kms(&i915->drm,
 			    "[ENCODER:%d:%s] Using LINK_BW_SET value %02x\n",
···
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-	char phy_name[10];
 
 	drm_dbg_kms(&i915->drm,
 		    "[ENCODER:%d:%s][%s] ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
 		    encoder->base.base.id, encoder->base.name,
-		    intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name)),
+		    drm_dp_phy_name(dp_phy),
 		    link_status[0], link_status[1], link_status[2],
 		    link_status[3], link_status[4], link_status[5]);
 }
···
 	int voltage_tries, cr_tries, max_cr_tries;
 	u8 link_status[DP_LINK_STATUS_SIZE];
 	bool max_vswing_reached = false;
-	char phy_name[10];
 	int delay_us;
 
 	delay_us = drm_dp_read_clock_recovery_delay(&intel_dp->aux,
 						    intel_dp->dpcd, dp_phy,
 						    intel_dp_is_uhbr(crtc_state));
 
-	intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name));
-
 	/* clock recovery */
 	if (!intel_dp_reset_link_train(intel_dp, crtc_state, dp_phy,
 				       DP_TRAINING_PATTERN_1 |
 				       DP_LINK_SCRAMBLING_DISABLE)) {
 		drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to enable link training\n",
-			encoder->base.base.id, encoder->base.name, phy_name);
+			encoder->base.base.id, encoder->base.name,
+			drm_dp_phy_name(dp_phy));
 		return false;
 	}
 
···
 		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
 						     link_status) < 0) {
 			drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to get link status\n",
-				encoder->base.base.id, encoder->base.name, phy_name);
+				encoder->base.base.id, encoder->base.name,
+				drm_dp_phy_name(dp_phy));
 			return false;
 		}
 
 		if (drm_dp_clock_recovery_ok(link_status, crtc_state->lane_count)) {
 			drm_dbg_kms(&i915->drm,
 				    "[ENCODER:%d:%s][%s] Clock recovery OK\n",
-				    encoder->base.base.id, encoder->base.name, phy_name);
+				    encoder->base.base.id, encoder->base.name,
+				    drm_dp_phy_name(dp_phy));
 			return true;
 		}
 
···
 			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
 			drm_dbg_kms(&i915->drm,
 				    "[ENCODER:%d:%s][%s] Same voltage tried 5 times\n",
-				    encoder->base.base.id, encoder->base.name, phy_name);
+				    encoder->base.base.id, encoder->base.name,
+				    drm_dp_phy_name(dp_phy));
 			return false;
 		}
 
···
 			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
 			drm_dbg_kms(&i915->drm,
 				    "[ENCODER:%d:%s][%s] Max Voltage Swing reached\n",
-				    encoder->base.base.id, encoder->base.name, phy_name);
+				    encoder->base.base.id, encoder->base.name,
+				    drm_dp_phy_name(dp_phy));
 			return false;
 		}
 
···
 		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
 			drm_err(&i915->drm,
 				"[ENCODER:%d:%s][%s] Failed to update link training\n",
-				encoder->base.base.id, encoder->base.name, phy_name);
+				encoder->base.base.id, encoder->base.name,
+				drm_dp_phy_name(dp_phy));
 			return false;
 		}
 
···
 	intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
 	drm_err(&i915->drm,
 		"[ENCODER:%d:%s][%s] Failed clock recovery %d times, giving up!\n",
-		encoder->base.base.id, encoder->base.name, phy_name, max_cr_tries);
+		encoder->base.base.id, encoder->base.name,
+		drm_dp_phy_name(dp_phy), max_cr_tries);
 
 	return false;
 }
···
 	u32 training_pattern;
 	u8 link_status[DP_LINK_STATUS_SIZE];
 	bool channel_eq = false;
-	char phy_name[10];
 	int delay_us;
 
 	delay_us = drm_dp_read_channel_eq_delay(&intel_dp->aux,
 						intel_dp->dpcd, dp_phy,
 						intel_dp_is_uhbr(crtc_state));
-
-	intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name));
 
 	training_pattern = intel_dp_training_pattern(intel_dp, crtc_state, dp_phy);
 	/* Scrambling is disabled for TPS2/3 and enabled for TPS4 */
···
 		drm_err(&i915->drm,
 			"[ENCODER:%d:%s][%s] Failed to start channel equalization\n",
 			encoder->base.base.id, encoder->base.name,
-			phy_name);
+			drm_dp_phy_name(dp_phy));
 		return false;
 	}
 
···
 						     link_status) < 0) {
 			drm_err(&i915->drm,
 				"[ENCODER:%d:%s][%s] Failed to get link status\n",
-				encoder->base.base.id, encoder->base.name, phy_name);
+				encoder->base.base.id, encoder->base.name,
+				drm_dp_phy_name(dp_phy));
 			break;
 		}
 
···
 			drm_dbg_kms(&i915->drm,
 				    "[ENCODER:%d:%s][%s] Clock recovery check failed, cannot "
 				    "continue channel equalization\n",
-				    encoder->base.base.id, encoder->base.name, phy_name);
+				    encoder->base.base.id, encoder->base.name,
+				    drm_dp_phy_name(dp_phy));
 			break;
 		}
 
···
 			channel_eq = true;
 			drm_dbg_kms(&i915->drm,
 				    "[ENCODER:%d:%s][%s] Channel EQ done. DP Training successful\n",
-				    encoder->base.base.id, encoder->base.name, phy_name);
+				    encoder->base.base.id, encoder->base.name,
+				    drm_dp_phy_name(dp_phy));
 			break;
 		}
 
···
 		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
 			drm_err(&i915->drm,
 				"[ENCODER:%d:%s][%s] Failed to update link training\n",
-				encoder->base.base.id, encoder->base.name, phy_name);
+				encoder->base.base.id, encoder->base.name,
+				drm_dp_phy_name(dp_phy));
 			break;
 		}
 	}
···
 		intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
 		drm_dbg_kms(&i915->drm,
 			    "[ENCODER:%d:%s][%s] Channel equalization failed 5 times\n",
-			    encoder->base.base.id, encoder->base.name, phy_name);
+			    encoder->base.base.id, encoder->base.name,
+			    drm_dp_phy_name(dp_phy));
 	}
 
 	return channel_eq;
···
 {
 	struct intel_connector *connector = intel_dp->attached_connector;
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	char phy_name[10];
 	bool ret = false;
 
 	if (!intel_dp_link_training_clock_recovery(intel_dp, crtc_state, dp_phy))
···
 		    "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] Link Training %s at link rate = %d, lane count = %d\n",
 		    connector->base.base.id, connector->base.name,
 		    encoder->base.base.id, encoder->base.name,
-		    intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name)),
+		    drm_dp_phy_name(dp_phy),
 		    ret ? "passed" : "failed",
 		    crtc_state->port_clock, crtc_state->lane_count);
 

drivers/gpu/drm/i915/display/intel_dp_mst.c

···
 	struct drm_i915_private *i915 = to_i915(connector->base.dev);
 	const struct drm_display_mode *adjusted_mode =
 		&crtc_state->hw.adjusted_mode;
-	bool constant_n = drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CONSTANT_N);
 	int bpp, slots = -EINVAL;
 
 	mst_state = drm_atomic_get_mst_topology_state(state, &intel_dp->mst_mgr);
···
 			       adjusted_mode->crtc_clock,
 			       crtc_state->port_clock,
 			       &crtc_state->dp_m_n,
-			       constant_n, crtc_state->fec_enable);
+			       crtc_state->fec_enable);
 	crtc_state->dp_m_n.tu = slots;
 
 	return 0;
···
 	drm_dp_add_payload_part2(&intel_dp->mst_mgr, &state->base,
 				 drm_atomic_get_mst_payload_state(mst_state, connector->port));
 
-	if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable)
+	if (DISPLAY_VER(dev_priv) >= 14 && pipe_config->fec_enable)
+		intel_de_rmw(dev_priv, MTL_CHICKEN_TRANS(trans), 0,
+			     FECSTALL_DIS_DPTSTREAM_DPTTG);
+	else if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable)
 		intel_de_rmw(dev_priv, CHICKEN_TRANS(trans), 0,
 			     FECSTALL_DIS_DPTSTREAM_DPTTG);
 

drivers/gpu/drm/i915/display/intel_dpio_phy.c

···
 	enum dpio_phy rcomp_phy = phy_info->rcomp_phy;
 	bool was_enabled;
 
-	lockdep_assert_held(&dev_priv->power_domains.lock);
+	lockdep_assert_held(&dev_priv->display.power.domains.lock);
 
 	was_enabled = true;
 	if (rcomp_phy != -1)

drivers/gpu/drm/i915/display/intel_dpll.c

···
 		intel_atomic_get_new_crtc_state(state, crtc);
 	struct intel_encoder *encoder =
 		intel_get_crtc_new_encoder(state, crtc_state);
+	int ret;
 
 	if (DISPLAY_VER(dev_priv) < 11 &&
 	    intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
 		return 0;
 
-	return intel_compute_shared_dplls(state, crtc, encoder);
+	ret = intel_compute_shared_dplls(state, crtc, encoder);
+	if (ret)
+		return ret;
+
+	/* FIXME this is a mess */
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
+		return 0;
+
+	/* CRT dotclock is determined via other means */
+	if (!crtc_state->has_pch_encoder)
+		crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
+	return 0;
 }
 
 static int hsw_crtc_get_shared_dpll(struct intel_atomic_state *state,
···
 		intel_atomic_get_new_crtc_state(state, crtc);
 	struct intel_encoder *encoder =
 		intel_get_crtc_new_encoder(state, crtc_state);
+	int ret;
 
-	return intel_mpllb_calc_state(crtc_state, encoder);
+	ret = intel_mpllb_calc_state(crtc_state, encoder);
+	if (ret)
+		return ret;
+
+	crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
+	return 0;
 }
 
 static bool ilk_needs_fb_cb_tune(const struct dpll *dpll, int factor)
···
 	factor = 21;
 	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
 		if ((intel_panel_use_ssc(dev_priv) &&
-		     dev_priv->vbt.lvds_ssc_freq == 100000) ||
+		     dev_priv->display.vbt.lvds_ssc_freq == 100000) ||
 		    (HAS_PCH_IBX(dev_priv) &&
 		     intel_is_dual_link_lvds(dev_priv)))
 			factor = 25;
···
 		intel_atomic_get_new_crtc_state(state, crtc);
 	const struct intel_limit *limit;
 	int refclk = 120000;
+	int ret;
 
 	/* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
 	if (!crtc_state->has_pch_encoder)
···
 		if (intel_panel_use_ssc(dev_priv)) {
 			drm_dbg_kms(&dev_priv->drm,
 				    "using SSC reference clock of %d kHz\n",
-				    dev_priv->vbt.lvds_ssc_freq);
-			refclk = dev_priv->vbt.lvds_ssc_freq;
+				    dev_priv->display.vbt.lvds_ssc_freq);
+			refclk = dev_priv->display.vbt.lvds_ssc_freq;
 		}
 
 		if (intel_is_dual_link_lvds(dev_priv)) {
···
 	ilk_compute_dpll(crtc_state, &crtc_state->dpll,
 			 &crtc_state->dpll);
 
-	return intel_compute_shared_dplls(state, crtc, NULL);
+	ret = intel_compute_shared_dplls(state, crtc, NULL);
+	if (ret)
+		return ret;
+
+	crtc_state->port_clock = crtc_state->dpll.dot;
+	crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
+	return ret;
 }
 
 static int ilk_crtc_get_shared_dpll(struct intel_atomic_state *state,
···
 
 	chv_compute_dpll(crtc_state);
 
+	/* FIXME this is a mess */
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
+		return 0;
+
+	crtc_state->port_clock = crtc_state->dpll.dot;
+	crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
 	return 0;
 }
 
···
 
 	vlv_compute_dpll(crtc_state);
 
+	/* FIXME this is a mess */
+	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
+		return 0;
+
+	crtc_state->port_clock = crtc_state->dpll.dot;
+	crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
 	return 0;
 }
 
···
 
 	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
 		if (intel_panel_use_ssc(dev_priv)) {
-			refclk = dev_priv->vbt.lvds_ssc_freq;
+			refclk = dev_priv->display.vbt.lvds_ssc_freq;
 			drm_dbg_kms(&dev_priv->drm,
 				    "using SSC reference clock of %d kHz\n",
 				    refclk);
···
 	i9xx_compute_dpll(crtc_state, &crtc_state->dpll,
 			  &crtc_state->dpll);
 
+	crtc_state->port_clock = crtc_state->dpll.dot;
+	/* FIXME this is a mess */
+	if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_TVOUT))
+		crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
 	return 0;
 }
 
···
 
 	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
 		if (intel_panel_use_ssc(dev_priv)) {
-			refclk = dev_priv->vbt.lvds_ssc_freq;
+			refclk = dev_priv->display.vbt.lvds_ssc_freq;
 			drm_dbg_kms(&dev_priv->drm,
 				    "using SSC reference clock of %d kHz\n",
 				    refclk);
···
 	i9xx_compute_dpll(crtc_state, &crtc_state->dpll,
 			  &crtc_state->dpll);
 
+	crtc_state->port_clock = crtc_state->dpll.dot;
+	crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
 	return 0;
 }
 
···
 
 	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
 		if (intel_panel_use_ssc(dev_priv)) {
-			refclk = dev_priv->vbt.lvds_ssc_freq;
+			refclk = dev_priv->display.vbt.lvds_ssc_freq;
 			drm_dbg_kms(&dev_priv->drm,
 				    "using SSC reference clock of %d kHz\n",
 				    refclk);
···
 	i9xx_compute_dpll(crtc_state, &crtc_state->dpll,
 			  &crtc_state->dpll);
 
+	crtc_state->port_clock = crtc_state->dpll.dot;
+	/* FIXME this is a mess */
+	if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_TVOUT))
+		crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
+
 	return 0;
 }
 
···
 
 	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS)) {
 		if (intel_panel_use_ssc(dev_priv)) {
-			refclk = dev_priv->vbt.lvds_ssc_freq;
+			refclk = dev_priv->display.vbt.lvds_ssc_freq;
 			drm_dbg_kms(&dev_priv->drm,
 				    "using SSC reference clock of %d kHz\n",
 				    refclk);
···
 
 	i8xx_compute_dpll(crtc_state, &crtc_state->dpll,
 			  &crtc_state->dpll);
+
+	crtc_state->port_clock = crtc_state->dpll.dot;
+	crtc_state->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(crtc_state);
 
 	return 0;
 }
···
 
 	drm_WARN_ON(&i915->drm, !intel_crtc_needs_modeset(crtc_state));
 
-	if (drm_WARN_ON(&i915->drm, crtc_state->shared_dpll))
-		return 0;
-
 	memset(&crtc_state->dpll_hw_state, 0,
 	       sizeof(crtc_state->dpll_hw_state));
 
···
 	int ret;
 
 	drm_WARN_ON(&i915->drm, !intel_crtc_needs_modeset(crtc_state));
+	drm_WARN_ON(&i915->drm, !crtc_state->hw.enable && crtc_state->shared_dpll);
 
-	if (drm_WARN_ON(&i915->drm, crtc_state->shared_dpll))
-		return 0;
-
-	if (!crtc_state->hw.enable)
+	if (!crtc_state->hw.enable || crtc_state->shared_dpll)
 		return 0;
 
 	if (!i915->display.funcs.dpll->crtc_get_shared_dpll)

drivers/gpu/drm/i915/display/intel_dpll_mgr.c

···
 	*r2_out = best.r2;
 }
 
-static int
-hsw_ddi_wrpll_compute_dpll(struct intel_atomic_state *state,
-			   struct intel_crtc *crtc)
-{
-	struct intel_crtc_state *crtc_state =
-		intel_atomic_get_new_crtc_state(state, crtc);
-	unsigned int p, n2, r2;
-
-	hsw_ddi_calculate_wrpll(crtc_state->port_clock * 1000, &r2, &n2, &p);
-
-	crtc_state->dpll_hw_state.wrpll =
-		WRPLL_PLL_ENABLE | WRPLL_REF_LCPLL |
-		WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) |
-		WRPLL_DIVIDER_POST(p);
-
-	return 0;
-}
-
-static struct intel_shared_dpll *
-hsw_ddi_wrpll_get_dpll(struct intel_atomic_state *state,
-		       struct intel_crtc *crtc)
-{
-	struct intel_crtc_state *crtc_state =
-		intel_atomic_get_new_crtc_state(state, crtc);
-
-	return intel_find_shared_dpll(state, crtc,
-				      &crtc_state->dpll_hw_state,
-				      BIT(DPLL_ID_WRPLL2) |
-				      BIT(DPLL_ID_WRPLL1));
-}
-
 static int hsw_ddi_wrpll_get_freq(struct drm_i915_private *dev_priv,
 				  const struct intel_shared_dpll *pll,
 				  const struct intel_dpll_hw_state *pll_state)
···
 
 	/* Convert to KHz, p & r have a fixed point portion */
 	return (refclk * n / 10) / (p * r) * 2;
+}
+
+static int
+hsw_ddi_wrpll_compute_dpll(struct intel_atomic_state *state,
+			   struct intel_crtc *crtc)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	unsigned int p, n2, r2;
+
+	hsw_ddi_calculate_wrpll(crtc_state->port_clock * 1000, &r2, &n2, &p);
+
+	crtc_state->dpll_hw_state.wrpll =
+		WRPLL_PLL_ENABLE | WRPLL_REF_LCPLL |
+		WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) |
+		WRPLL_DIVIDER_POST(p);
+
+	crtc_state->port_clock = hsw_ddi_wrpll_get_freq(i915, NULL,
+							&crtc_state->dpll_hw_state);
+
+	return 0;
+}
+
+static struct intel_shared_dpll *
+hsw_ddi_wrpll_get_dpll(struct intel_atomic_state *state,
+		       struct intel_crtc *crtc)
+{
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+
+	return intel_find_shared_dpll(state, crtc,
+				      &crtc_state->dpll_hw_state,
+				      BIT(DPLL_ID_WRPLL2) |
+				      BIT(DPLL_ID_WRPLL1));
 }
 
 static int
···
 	return 0;
 }
 
-static int skl_ddi_hdmi_pll_dividers(struct intel_crtc_state *crtc_state)
-{
-	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
-	struct skl_wrpll_params wrpll_params = {};
-	u32 ctrl1, cfgcr1, cfgcr2;
-	int ret;
-
-	/*
-	 * See comment in intel_dpll_hw_state to understand why we always use 0
-	 * as the DPLL id in this function.
-	 */
-	ctrl1 = DPLL_CTRL1_OVERRIDE(0);
-
-	ctrl1 |= DPLL_CTRL1_HDMI_MODE(0);
-
-	ret = skl_ddi_calculate_wrpll(crtc_state->port_clock * 1000,
-				      i915->display.dpll.ref_clks.nssc, &wrpll_params);
-	if (ret)
-		return ret;
-
-	cfgcr1 = DPLL_CFGCR1_FREQ_ENABLE |
-		DPLL_CFGCR1_DCO_FRACTION(wrpll_params.dco_fraction) |
-		wrpll_params.dco_integer;
-
-	cfgcr2 = DPLL_CFGCR2_QDIV_RATIO(wrpll_params.qdiv_ratio) |
-		DPLL_CFGCR2_QDIV_MODE(wrpll_params.qdiv_mode) |
-		DPLL_CFGCR2_KDIV(wrpll_params.kdiv) |
-		DPLL_CFGCR2_PDIV(wrpll_params.pdiv) |
-		wrpll_params.central_freq;
-
-	crtc_state->dpll_hw_state.ctrl1 = ctrl1;
-	crtc_state->dpll_hw_state.cfgcr1 = cfgcr1;
-	crtc_state->dpll_hw_state.cfgcr2 = cfgcr2;
-
-	return 0;
-}
-
 static int skl_ddi_wrpll_get_freq(struct drm_i915_private *i915,
 				  const struct intel_shared_dpll *pll,
 				  const struct intel_dpll_hw_state *pll_state)
···
 		return 0;
 
 	return dco_freq / (p0 * p1 * p2 * 5);
+}
+
+static int skl_ddi_hdmi_pll_dividers(struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+	struct skl_wrpll_params wrpll_params = {};
+	u32 ctrl1, cfgcr1, cfgcr2;
+	int ret;
+
+	/*
+	 * See comment in intel_dpll_hw_state to understand why we always use 0
+	 * as the DPLL id in this function.
+	 */
+	ctrl1 = DPLL_CTRL1_OVERRIDE(0);
+
+	ctrl1 |= DPLL_CTRL1_HDMI_MODE(0);
+
+	ret = skl_ddi_calculate_wrpll(crtc_state->port_clock * 1000,
+				      i915->display.dpll.ref_clks.nssc, &wrpll_params);
+	if (ret)
+		return ret;
+
+	cfgcr1 = DPLL_CFGCR1_FREQ_ENABLE |
+		DPLL_CFGCR1_DCO_FRACTION(wrpll_params.dco_fraction) |
+		wrpll_params.dco_integer;
+
+	cfgcr2 = DPLL_CFGCR2_QDIV_RATIO(wrpll_params.qdiv_ratio) |
+		DPLL_CFGCR2_QDIV_MODE(wrpll_params.qdiv_mode) |
+		DPLL_CFGCR2_KDIV(wrpll_params.kdiv) |
+		DPLL_CFGCR2_PDIV(wrpll_params.pdiv) |
+		wrpll_params.central_freq;
+
+	crtc_state->dpll_hw_state.ctrl1 = ctrl1;
+	crtc_state->dpll_hw_state.cfgcr1 = cfgcr1;
+	crtc_state->dpll_hw_state.cfgcr2 = cfgcr2;
+
+	crtc_state->port_clock = skl_ddi_wrpll_get_freq(i915, NULL,
+							&crtc_state->dpll_hw_state);
+
+	return 0;
 }
 
 static int
···
 static void skl_update_dpll_ref_clks(struct drm_i915_private *i915)
 {
 	/* No SSC ref */
-	i915->display.dpll.ref_clks.nssc = i915->cdclk.hw.ref;
+	i915->display.dpll.ref_clks.nssc = i915->display.cdclk.hw.ref;
 }
 
 static void skl_dump_hw_state(struct drm_i915_private *dev_priv,
···
 	return 0;
 }
 
-static int
-bxt_ddi_dp_set_dpll_hw_state(struct intel_crtc_state *crtc_state)
-{
-	struct dpll clk_div = {};
-
-	bxt_ddi_dp_pll_dividers(crtc_state, &clk_div);
-
-	return bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div);
-}
-
-static int
-bxt_ddi_hdmi_set_dpll_hw_state(struct intel_crtc_state *crtc_state)
-{
-	struct dpll clk_div = {};
-
-	bxt_ddi_hdmi_pll_dividers(crtc_state, &clk_div);
-
-	return bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div);
-}
-
 static int bxt_ddi_pll_get_freq(struct drm_i915_private *i915,
 				const struct intel_shared_dpll *pll,
 				const struct intel_dpll_hw_state *pll_state)
···
 	clock.p2 = REG_FIELD_GET(PORT_PLL_P2_MASK, pll_state->ebb0);
 
 	return chv_calc_dpll_params(i915->display.dpll.ref_clks.nssc, &clock);
+}
+
+static int
+bxt_ddi_dp_set_dpll_hw_state(struct intel_crtc_state *crtc_state)
+{
+	struct dpll clk_div = {};
+
+	bxt_ddi_dp_pll_dividers(crtc_state, &clk_div);
+
+	return bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div);
+}
+
+static int
+bxt_ddi_hdmi_set_dpll_hw_state(struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+	struct dpll clk_div = {};
+	int ret;
+
+	bxt_ddi_hdmi_pll_dividers(crtc_state, &clk_div);
+
+	ret = bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div);
+	if (ret)
+		return ret;
+
+	crtc_state->port_clock = bxt_ddi_pll_get_freq(i915, NULL,
+						      &crtc_state->dpll_hw_state);
+
+	return 0;
 }
 
 static int bxt_compute_dpll(struct intel_atomic_state *state,
···
 	else
 		pll_state->cfgcr1 |= DPLL_CFGCR1_CENTRAL_FREQ_8400;
 
-	if (i915->vbt.override_afc_startup)
-		pll_state->div0 = TGL_DPLL0_DIV0_AFC_STARTUP(i915->vbt.override_afc_startup_val);
+	if (i915->display.vbt.override_afc_startup)
+		pll_state->div0 = TGL_DPLL0_DIV0_AFC_STARTUP(i915->display.vbt.override_afc_startup_val);
 }
 
 static int icl_mg_pll_find_divisors(int clock_khz, bool is_dp, bool use_ssc,
···
 					 DKL_PLL_DIV0_PROP_COEFF(prop_coeff) |
 					 DKL_PLL_DIV0_FBPREDIV(m1div) |
 					 DKL_PLL_DIV0_FBDIV_INT(m2div_int);
-		if (dev_priv->vbt.override_afc_startup) {
-			u8 val = dev_priv->vbt.override_afc_startup_val;
+		if (dev_priv->display.vbt.override_afc_startup) {
+			u8 val = dev_priv->display.vbt.override_afc_startup_val;
 
 			pll_state->mg_pll_div0 |= DKL_PLL_DIV0_AFC_STARTUP(val);
 		}
···
 
 	icl_calc_dpll_state(dev_priv, &pll_params, &port_dpll->hw_state);
 
+	/* this is mainly for the fastset check */
+	icl_set_active_port_dpll(crtc_state, ICL_PORT_DPLL_DEFAULT);
+
+	crtc_state->port_clock = icl_ddi_combo_pll_get_freq(dev_priv, NULL,
+							    &port_dpll->hw_state);
+
 	return 0;
 }
 
···
 	ret = icl_calc_mg_pll_state(crtc_state, &port_dpll->hw_state);
 	if (ret)
 		return ret;
+
+	/* this is mainly for the fastset check */
+	icl_set_active_port_dpll(crtc_state, ICL_PORT_DPLL_MG_PHY);
+
+	crtc_state->port_clock = icl_ddi_mg_pll_get_freq(dev_priv, NULL,
+							 &port_dpll->hw_state);
 
 	return 0;
 }
···
 
 	hw_state->mg_pll_div0 = intel_de_read(dev_priv, DKL_PLL_DIV0(tc_port));
 	val = DKL_PLL_DIV0_MASK;
-	if (dev_priv->vbt.override_afc_startup)
+	if (dev_priv->display.vbt.override_afc_startup)
 		val |= DKL_PLL_DIV0_AFC_STARTUP_MASK;
 	hw_state->mg_pll_div0 &= val;
 
···
 						 TGL_DPLL_CFGCR0(id));
 		hw_state->cfgcr1 = intel_de_read(dev_priv,
 						 TGL_DPLL_CFGCR1(id));
-		if (dev_priv->vbt.override_afc_startup) {
+		if (dev_priv->display.vbt.override_afc_startup) {
 			hw_state->div0 = intel_de_read(dev_priv, TGL_DPLL0_DIV0(id));
 			hw_state->div0 &= TGL_DPLL0_DIV0_AFC_STARTUP_MASK;
 		}
···
 
 	intel_de_write(dev_priv, cfgcr0_reg, hw_state->cfgcr0);
 	intel_de_write(dev_priv, cfgcr1_reg, hw_state->cfgcr1);
-	drm_WARN_ON_ONCE(&dev_priv->drm, dev_priv->vbt.override_afc_startup &&
+	drm_WARN_ON_ONCE(&dev_priv->drm, dev_priv->display.vbt.override_afc_startup &&
 			 !i915_mmio_reg_valid(div0_reg));
-	if (dev_priv->vbt.override_afc_startup &&
+	if (dev_priv->display.vbt.override_afc_startup &&
 	    i915_mmio_reg_valid(div0_reg))
 		intel_de_rmw(dev_priv, div0_reg, TGL_DPLL0_DIV0_AFC_STARTUP_MASK,
 			     hw_state->div0);
···
 	intel_de_write(dev_priv, DKL_CLKTOP2_HSCLKCTL(tc_port), val);
 
 	val = DKL_PLL_DIV0_MASK;
-	if (dev_priv->vbt.override_afc_startup)
+	if (dev_priv->display.vbt.override_afc_startup)
 		val |= DKL_PLL_DIV0_AFC_STARTUP_MASK;
 	intel_de_rmw(dev_priv, DKL_PLL_DIV0(tc_port), val,
 		     hw_state->mg_pll_div0);
···
 static void icl_update_dpll_ref_clks(struct drm_i915_private *i915)
 {
 	/* No SSC ref */
-	i915->display.dpll.ref_clks.nssc = i915->cdclk.hw.ref;
+	i915->display.dpll.ref_clks.nssc = i915->display.cdclk.hw.ref;
 }
 
 static void icl_dump_hw_state(struct drm_i915_private *dev_priv,
···
 	dpll_info = dpll_mgr->dpll_info;
 
 	for (i = 0; dpll_info[i].name; i++) {
+		if (drm_WARN_ON(&dev_priv->drm,
+				i >= ARRAY_SIZE(dev_priv->display.dpll.shared_dplls)))
+			break;
+
 		drm_WARN_ON(&dev_priv->drm, i != dpll_info[i].id);
 		dev_priv->display.dpll.shared_dplls[i].info = &dpll_info[i];
 	}
···
 	dev_priv->display.dpll.mgr = dpll_mgr;
 	dev_priv->display.dpll.num_shared_dpll = i;
 	mutex_init(&dev_priv->display.dpll.lock);
-
-	BUG_ON(dev_priv->display.dpll.num_shared_dpll > I915_NUM_PLLS);
 }
 
 /**

drivers/gpu/drm/i915/display/intel_dsb.c

···
 #include "i915_drv.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_dsb.h"
+
+struct i915_vma;
+
+enum dsb_id {
+	INVALID_DSB = -1,
+	DSB1,
+	DSB2,
+	DSB3,
+	MAX_DSB_PER_PIPE
+};
+
+struct intel_dsb {
+	enum dsb_id id;
+	u32 *cmd_buf;
+	struct i915_vma *vma;
+
+	/*
+	 * free_pos will point the first free entry position
+	 * and help in calculating tail of command buffer.
+	 */
+	int free_pos;
+
+	/*
+	 * ins_start_offset will help to store start address of the dsb
+	 * instuction and help in identifying the batch of auto-increment
+	 * register.
+	 */
+	u32 ins_start_offset;
+};
 
 #define DSB_BUF_SIZE    (2 * PAGE_SIZE)
 

drivers/gpu/drm/i915/display/intel_dsb.h

···
 #include "i915_reg_defs.h"
 
 struct intel_crtc_state;
-struct i915_vma;
-
-enum dsb_id {
-	INVALID_DSB = -1,
-	DSB1,
-	DSB2,
-	DSB3,
-	MAX_DSB_PER_PIPE
-};
-
-struct intel_dsb {
-	enum dsb_id id;
-	u32 *cmd_buf;
-	struct i915_vma *vma;
-
-	/*
-	 * free_pos will point the first free entry position
-	 * and help in calculating tail of command buffer.
-	 */
-	int free_pos;
-
-	/*
-	 * ins_start_offset will help to store start address of the dsb
-	 * instuction and help in identifying the batch of auto-increment
-	 * register.
-	 */
-	u32 ins_start_offset;
-};
 
 void intel_dsb_prepare(struct intel_crtc_state *crtc_state);
 void intel_dsb_cleanup(struct intel_crtc_state *crtc_state);

drivers/gpu/drm/i915/display/intel_dsi.c

···
 	if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
 		return orientation;
 
-	orientation = dev_priv->vbt.orientation;
+	orientation = dev_priv->display.vbt.orientation;
 	if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
 		return orientation;
 

drivers/gpu/drm/i915/display/intel_dvo_dev.h

···
 	 *
 	 * \return MODE_OK if the mode is valid, or another MODE_* otherwise.
 	 */
-	int (*mode_valid)(struct intel_dvo_device *dvo,
-			  struct drm_display_mode *mode);
+	enum drm_mode_status (*mode_valid)(struct intel_dvo_device *dvo,
+					   struct drm_display_mode *mode);
 
 	/*
 	 * Callback for preparing mode changes on an output

drivers/gpu/drm/i915/display/intel_fbc.c

···
 
 #define for_each_intel_fbc(__dev_priv, __fbc, __fbc_id) \
 	for_each_fbc_id((__dev_priv), (__fbc_id)) \
-		for_each_if((__fbc) = (__dev_priv)->fbc[(__fbc_id)])
+		for_each_if((__fbc) = (__dev_priv)->display.fbc[(__fbc_id)])
 
 struct intel_fbc_funcs {
 	void (*activate)(struct intel_fbc *fbc);
···
 		    i915->params.enable_fbc);
 
 	for_each_fbc_id(i915, fbc_id)
-		i915->fbc[fbc_id] = intel_fbc_create(i915, fbc_id);
+		i915->display.fbc[fbc_id] = intel_fbc_create(i915, fbc_id);
 }
 
 /**
···
 	struct drm_minor *minor = i915->drm.primary;
 	struct intel_fbc *fbc;
 
-	fbc = i915->fbc[INTEL_FBC_A];
+	fbc = i915->display.fbc[INTEL_FBC_A];
 	if (fbc)
 		intel_fbc_debugfs_add(fbc, minor->debugfs_root);
 }

drivers/gpu/drm/i915/display/intel_fbdev.c

···
 	struct drm_i915_gem_object *obj;
 	int ret;
 
+	mutex_lock(&ifbdev->hpd_lock);
+	ret = ifbdev->hpd_suspended ? -EAGAIN : 0;
+	mutex_unlock(&ifbdev->hpd_lock);
+	if (ret)
+		return ret;
+
 	if (intel_fb &&
 	    (sizes->fb_width > intel_fb->base.width ||
 	     sizes->fb_height > intel_fb->base.height)) {
···
 	if (!ifbdev)
 		return;
 
-	cancel_work_sync(&dev_priv->display.fbdev.suspend_work);
+	intel_fbdev_set_suspend(&dev_priv->drm, FBINFO_STATE_SUSPENDED, true);
+
 	if (!current_is_async())
 		intel_fbdev_sync(ifbdev);
 
···
 	struct fb_info *info;
 
 	if (!ifbdev || !ifbdev->vma)
-		return;
+		goto set_suspend;
 
 	info = ifbdev->helper.fbdev;
 
···
 	drm_fb_helper_set_suspend(&ifbdev->helper, state);
 	console_unlock();
 
+set_suspend:
 	intel_fbdev_hpd_set_suspend(dev_priv, state);
 }
 

drivers/gpu/drm/i915/display/intel_fdi.c

···
 		u32 fdi_pll_clk =
 			intel_de_read(i915, FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK;
 
-		i915->fdi_pll_freq = (fdi_pll_clk + 2) * 10000;
+		i915->display.fdi.pll_freq = (fdi_pll_clk + 2) * 10000;
 	} else if (IS_SANDYBRIDGE(i915) || IS_IVYBRIDGE(i915)) {
-		i915->fdi_pll_freq = 270000;
+		i915->display.fdi.pll_freq = 270000;
 	} else {
 		return;
 	}
 
-	drm_dbg(&i915->drm, "FDI PLL freq=%d\n", i915->fdi_pll_freq);
+	drm_dbg(&i915->drm, "FDI PLL freq=%d\n", i915->display.fdi.pll_freq);
 }
 
 int intel_fdi_link_freq(struct drm_i915_private *i915,
···
 	if (HAS_DDI(i915))
 		return pipe_config->port_clock; /* SPLL */
 	else
-		return i915->fdi_pll_freq;
+		return i915->display.fdi.pll_freq;
 }
 
 int ilk_fdi_compute_config(struct intel_crtc *crtc,
···
 	pipe_config->fdi_lanes = lane;
 
 	intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
-			       link_bw, &pipe_config->fdi_m_n, false, false);
+			       link_bw, &pipe_config->fdi_m_n, false);
 
 	ret = ilk_check_fdi_lanes(dev, crtc->pipe, pipe_config);
 	if (ret == -EDEADLK)
···
 		       FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2) | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
 
 	/* Enable the PCH Receiver FDI PLL */
-	rx_ctl_val = dev_priv->fdi_rx_config | FDI_RX_ENHANCE_FRAME_ENABLE |
+	rx_ctl_val = dev_priv->display.fdi.rx_config | FDI_RX_ENHANCE_FRAME_ENABLE |
 		     FDI_RX_PLL_ENABLE |
 		     FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes);
 	intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), rx_ctl_val);

drivers/gpu/drm/i915/display/intel_frontbuffer.c

···
 			      enum fb_op_origin origin)
 {
 	/* Delay flushing when rings are still busy.*/
-	spin_lock(&i915->fb_tracking.lock);
-	frontbuffer_bits &= ~i915->fb_tracking.busy_bits;
-	spin_unlock(&i915->fb_tracking.lock);
+	spin_lock(&i915->display.fb_tracking.lock);
+	frontbuffer_bits &= ~i915->display.fb_tracking.busy_bits;
+	spin_unlock(&i915->display.fb_tracking.lock);
 
 	if (!frontbuffer_bits)
 		return;
···
 void intel_frontbuffer_flip_prepare(struct drm_i915_private *i915,
 				    unsigned frontbuffer_bits)
 {
-	spin_lock(&i915->fb_tracking.lock);
-	i915->fb_tracking.flip_bits |= frontbuffer_bits;
+	spin_lock(&i915->display.fb_tracking.lock);
+	i915->display.fb_tracking.flip_bits |= frontbuffer_bits;
 	/* Remove stale busy bits due to the old buffer. */
-	i915->fb_tracking.busy_bits &= ~frontbuffer_bits;
-	spin_unlock(&i915->fb_tracking.lock);
+	i915->display.fb_tracking.busy_bits &= ~frontbuffer_bits;
+	spin_unlock(&i915->display.fb_tracking.lock);
 }
 
 /**
···
 void intel_frontbuffer_flip_complete(struct drm_i915_private *i915,
 				     unsigned frontbuffer_bits)
 {
-	spin_lock(&i915->fb_tracking.lock);
+	spin_lock(&i915->display.fb_tracking.lock);
 	/* Mask any cancelled flips. */
-	frontbuffer_bits &= i915->fb_tracking.flip_bits;
-	i915->fb_tracking.flip_bits &= ~frontbuffer_bits;
-	spin_unlock(&i915->fb_tracking.lock);
+	frontbuffer_bits &= i915->display.fb_tracking.flip_bits;
+	i915->display.fb_tracking.flip_bits &= ~frontbuffer_bits;
+	spin_unlock(&i915->display.fb_tracking.lock);
 
 	if (frontbuffer_bits)
 		frontbuffer_flush(i915, frontbuffer_bits, ORIGIN_FLIP);
···
 void intel_frontbuffer_flip(struct drm_i915_private *i915,
 			    unsigned frontbuffer_bits)
 {
-	spin_lock(&i915->fb_tracking.lock);
+	spin_lock(&i915->display.fb_tracking.lock);
 	/* Remove stale busy bits due to the old buffer. */
-	i915->fb_tracking.busy_bits &= ~frontbuffer_bits;
-	spin_unlock(&i915->fb_tracking.lock);
+	i915->display.fb_tracking.busy_bits &= ~frontbuffer_bits;
+	spin_unlock(&i915->display.fb_tracking.lock);
 
 	frontbuffer_flush(i915, frontbuffer_bits, ORIGIN_FLIP);
 }
···
 	struct drm_i915_private *i915 = to_i915(front->obj->base.dev);
 
 	if (origin == ORIGIN_CS) {
-		spin_lock(&i915->fb_tracking.lock);
-		i915->fb_tracking.busy_bits |= frontbuffer_bits;
-		i915->fb_tracking.flip_bits &= ~frontbuffer_bits;
-		spin_unlock(&i915->fb_tracking.lock);
+		spin_lock(&i915->display.fb_tracking.lock);
+		i915->display.fb_tracking.busy_bits |= frontbuffer_bits;
+		i915->display.fb_tracking.flip_bits &= ~frontbuffer_bits;
+		spin_unlock(&i915->display.fb_tracking.lock);
 	}
 
 	trace_intel_frontbuffer_invalidate(frontbuffer_bits, origin);
···
 	struct drm_i915_private *i915 = to_i915(front->obj->base.dev);
 
 	if (origin == ORIGIN_CS) {
-		spin_lock(&i915->fb_tracking.lock);
+		spin_lock(&i915->display.fb_tracking.lock);
 		/* Filter out new bits since rendering started. */
-		frontbuffer_bits &= i915->fb_tracking.busy_bits;
-		i915->fb_tracking.busy_bits &= ~frontbuffer_bits;
-		spin_unlock(&i915->fb_tracking.lock);
+		frontbuffer_bits &= i915->display.fb_tracking.busy_bits;
+		i915->display.fb_tracking.busy_bits &= ~frontbuffer_bits;
+		spin_unlock(&i915->display.fb_tracking.lock);
 	}
 
 	if (frontbuffer_bits)
···
 }
 
 static void frontbuffer_release(struct kref *ref)
-	__releases(&to_i915(front->obj->base.dev)->fb_tracking.lock)
+	__releases(&to_i915(front->obj->base.dev)->display.fb_tracking.lock)
 {
 	struct intel_frontbuffer *front =
 		container_of(ref, typeof(*front), ref);
···
 	spin_unlock(&obj->vma.lock);
 
 	RCU_INIT_POINTER(obj->frontbuffer, NULL);
-	spin_unlock(&to_i915(obj->base.dev)->fb_tracking.lock);
+	spin_unlock(&to_i915(obj->base.dev)->display.fb_tracking.lock);
 
 	i915_active_fini(&front->write);
 
···
 			 frontbuffer_retire,
 			 I915_ACTIVE_RETIRE_SLEEPS);
 
-	spin_lock(&i915->fb_tracking.lock);
+	spin_lock(&i915->display.fb_tracking.lock);
 	if (rcu_access_pointer(obj->frontbuffer)) {
 		kfree(front);
 		front = rcu_dereference_protected(obj->frontbuffer, true);
···
 		i915_gem_object_get(obj);
 		rcu_assign_pointer(obj->frontbuffer, front);
 	}
-	spin_unlock(&i915->fb_tracking.lock);
+	spin_unlock(&i915->display.fb_tracking.lock);
 
 	return front;
 }
···
 {
 	kref_put_lock(&front->ref,
 		      frontbuffer_release,
-		      &to_i915(front->obj->base.dev)->fb_tracking.lock);
+		      &to_i915(front->obj->base.dev)->display.fb_tracking.lock);
 }
 
 /**

drivers/gpu/drm/i915/display/intel_gmbus.c

···
 #include "intel_de.h"
 #include "intel_display_types.h"
 #include "intel_gmbus.h"
+#include "intel_gmbus_regs.h"
 
 struct intel_gmbus {
 	struct i2c_adapter adapter;
···
 	u32 reg0;
 	i915_reg_t gpio_reg;
 	struct i2c_algo_bit_data bit_algo;
-	struct drm_i915_private *dev_priv;
+	struct drm_i915_private *i915;
 };
 
 struct gmbus_pin {
···
 	[GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ },
 };
 
+static const struct gmbus_pin gmbus_pins_mtp[] = {
+	[GMBUS_PIN_1_BXT] = { "dpa", GPIOB },
+	[GMBUS_PIN_2_BXT] = { "dpb", GPIOC },
+	[GMBUS_PIN_3_BXT] = { "dpc", GPIOD },
+	[GMBUS_PIN_4_CNP] = { "dpd", GPIOE },
+	[GMBUS_PIN_5_MTP] = { "dpe", GPIOF },
+	[GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ },
+	[GMBUS_PIN_10_TC2_ICP] = { "tc2", GPIOK },
+	[GMBUS_PIN_11_TC3_ICP] = { "tc3", GPIOL },
+	[GMBUS_PIN_12_TC4_ICP] = { "tc4", GPIOM },
+};
+
 static const struct gmbus_pin *get_gmbus_pin(struct drm_i915_private *i915,
 					     unsigned int pin)
 {
···
 	} else if (INTEL_PCH_TYPE(i915) >= PCH_DG1) {
 		pins = gmbus_pins_dg1;
 		size = ARRAY_SIZE(gmbus_pins_dg1);
+	} else if (INTEL_PCH_TYPE(i915) >= PCH_MTP) {
+		pins = gmbus_pins_mtp;
+		size = ARRAY_SIZE(gmbus_pins_mtp);
 	} else if (INTEL_PCH_TYPE(i915) >= PCH_ICP) {
 		pins = gmbus_pins_icp;
 		size = ARRAY_SIZE(gmbus_pins_icp);
···
 }
 
 void
-intel_gmbus_reset(struct drm_i915_private *dev_priv)
+intel_gmbus_reset(struct drm_i915_private *i915)
 {
-	intel_de_write(dev_priv, GMBUS0, 0);
-	intel_de_write(dev_priv, GMBUS4, 0);
+	intel_de_write(i915, GMBUS0(i915), 0);
+	intel_de_write(i915, GMBUS4(i915), 0);
 }
 
-static void pnv_gmbus_clock_gating(struct drm_i915_private *dev_priv,
+static void pnv_gmbus_clock_gating(struct drm_i915_private *i915,
 				   bool enable)
 {
 	u32 val;
 
 	/* When using bit bashing for I2C, this bit needs to be set to 1 */
-	val = intel_de_read(dev_priv, DSPCLK_GATE_D);
+	val = intel_de_read(i915, DSPCLK_GATE_D(i915));
 	if (!enable)
 		val |= PNV_GMBUSUNIT_CLOCK_GATE_DISABLE;
 	else
 		val &= ~PNV_GMBUSUNIT_CLOCK_GATE_DISABLE;
-	intel_de_write(dev_priv, DSPCLK_GATE_D, val);
+	intel_de_write(i915, DSPCLK_GATE_D(i915), val);
 }
 
-static void pch_gmbus_clock_gating(struct drm_i915_private *dev_priv,
+static void pch_gmbus_clock_gating(struct drm_i915_private *i915,
 				   bool enable)
 {
 	u32 val;
 
-	val = intel_de_read(dev_priv, SOUTH_DSPCLK_GATE_D);
+	val = intel_de_read(i915, SOUTH_DSPCLK_GATE_D);
 	if (!enable)
 		val |= PCH_GMBUSUNIT_CLOCK_GATE_DISABLE;
 	else
 		val &= ~PCH_GMBUSUNIT_CLOCK_GATE_DISABLE;
-	intel_de_write(dev_priv, SOUTH_DSPCLK_GATE_D, val);
+	intel_de_write(i915, SOUTH_DSPCLK_GATE_D, val);
 }
 
-static void bxt_gmbus_clock_gating(struct drm_i915_private *dev_priv,
+static void bxt_gmbus_clock_gating(struct drm_i915_private *i915,
 				   bool enable)
 {
 	u32 val;
 
-	val = intel_de_read(dev_priv, GEN9_CLKGATE_DIS_4);
+	val = intel_de_read(i915, GEN9_CLKGATE_DIS_4);
 	if (!enable)
 		val |= BXT_GMBUS_GATING_DIS;
 	else
 		val &= ~BXT_GMBUS_GATING_DIS;
-	intel_de_write(dev_priv, GEN9_CLKGATE_DIS_4, val);
+	intel_de_write(i915, GEN9_CLKGATE_DIS_4, val);
 }
 
 static u32 get_reserved(struct intel_gmbus *bus)
 {
-	struct drm_i915_private *i915 = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 	struct intel_uncore *uncore = &i915->uncore;
 	u32 reserved = 0;
 
···
 static int get_clock(void *data)
 {
 	struct intel_gmbus *bus = data;
-	struct intel_uncore *uncore = &bus->dev_priv->uncore;
+	struct intel_uncore *uncore = &bus->i915->uncore;
 	u32 reserved = get_reserved(bus);
 
 	intel_uncore_write_notrace(uncore,
···
 static int get_data(void *data)
 {
 	struct intel_gmbus *bus = data;
-	struct intel_uncore *uncore = &bus->dev_priv->uncore;
+	struct intel_uncore *uncore = &bus->i915->uncore;
 	u32 reserved = get_reserved(bus);
 
 	intel_uncore_write_notrace(uncore,
···
 static void set_clock(void *data, int state_high)
 {
 	struct intel_gmbus *bus = data;
-	struct intel_uncore *uncore = &bus->dev_priv->uncore;
+	struct intel_uncore *uncore = &bus->i915->uncore;
 	u32 reserved = get_reserved(bus);
 	u32 clock_bits;
 
···
 static void set_data(void *data, int state_high)
 {
 	struct intel_gmbus *bus = data;
-	struct intel_uncore *uncore = &bus->dev_priv->uncore;
+	struct intel_uncore *uncore = &bus->i915->uncore;
 	u32 reserved = get_reserved(bus);
 	u32 data_bits;
 
···
 intel_gpio_pre_xfer(struct i2c_adapter *adapter)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 
-	intel_gmbus_reset(dev_priv);
+	intel_gmbus_reset(i915);
 
-	if (IS_PINEVIEW(dev_priv))
-		pnv_gmbus_clock_gating(dev_priv, false);
+	if (IS_PINEVIEW(i915))
+		pnv_gmbus_clock_gating(i915, false);
 
 	set_data(bus, 1);
 	set_clock(bus, 1);
···
 intel_gpio_post_xfer(struct i2c_adapter *adapter)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 
 	set_data(bus, 1);
 	set_clock(bus, 1);
 
-	if (IS_PINEVIEW(dev_priv))
-		pnv_gmbus_clock_gating(dev_priv, true);
+	if (IS_PINEVIEW(i915))
+		pnv_gmbus_clock_gating(i915, true);
 }
 
 static void
···
 	return HAS_GMBUS_IRQ(i915) && intel_irqs_enabled(i915);
 }
 
-static int gmbus_wait(struct drm_i915_private *dev_priv, u32 status, u32 irq_en)
+static int gmbus_wait(struct drm_i915_private *i915, u32 status, u32 irq_en)
 {
 	DEFINE_WAIT(wait);
 	u32 gmbus2;
···
 	 * we also need to check for NAKs besides the hw ready/idle signal, we
 	 * need to wake up periodically and check that ourselves.
 	 */
-	if (!has_gmbus_irq(dev_priv))
+	if (!has_gmbus_irq(i915))
 		irq_en = 0;
 
-	add_wait_queue(&dev_priv->display.gmbus.wait_queue, &wait);
-	intel_de_write_fw(dev_priv, GMBUS4, irq_en);
+	add_wait_queue(&i915->display.gmbus.wait_queue, &wait);
+	intel_de_write_fw(i915, GMBUS4(i915), irq_en);
 
 	status |= GMBUS_SATOER;
-	ret = wait_for_us((gmbus2 = intel_de_read_fw(dev_priv, GMBUS2)) & status,
+	ret = wait_for_us((gmbus2 = intel_de_read_fw(i915, GMBUS2(i915))) & status,
 			  2);
 	if (ret)
-		ret = wait_for((gmbus2 = intel_de_read_fw(dev_priv, GMBUS2)) & status,
+		ret = wait_for((gmbus2 = intel_de_read_fw(i915, GMBUS2(i915))) & status,
 			       50);
 
-	intel_de_write_fw(dev_priv, GMBUS4, 0);
-	remove_wait_queue(&dev_priv->display.gmbus.wait_queue, &wait);
+	intel_de_write_fw(i915, GMBUS4(i915), 0);
+	remove_wait_queue(&i915->display.gmbus.wait_queue, &wait);
 
 	if (gmbus2 & GMBUS_SATOER)
 		return -ENXIO;
···
 }
 
 static int
-gmbus_wait_idle(struct drm_i915_private *dev_priv)
+gmbus_wait_idle(struct drm_i915_private *i915)
 {
 	DEFINE_WAIT(wait);
 	u32 irq_enable;
···
 
 	/* Important: The hw handles only the first bit, so set only one! */
 	irq_enable = 0;
-	if (has_gmbus_irq(dev_priv))
+	if (has_gmbus_irq(i915))
 		irq_enable = GMBUS_IDLE_EN;
 
-	add_wait_queue(&dev_priv->display.gmbus.wait_queue, &wait);
-	intel_de_write_fw(dev_priv, GMBUS4, irq_enable);
+	add_wait_queue(&i915->display.gmbus.wait_queue, &wait);
+	intel_de_write_fw(i915, GMBUS4(i915), irq_enable);
 
-	ret = intel_wait_for_register_fw(&dev_priv->uncore,
-					 GMBUS2, GMBUS_ACTIVE, 0,
+	ret = intel_wait_for_register_fw(&i915->uncore,
+					 GMBUS2(i915), GMBUS_ACTIVE, 0,
 					 10);
 
-	intel_de_write_fw(dev_priv, GMBUS4, 0);
-	remove_wait_queue(&dev_priv->display.gmbus.wait_queue, &wait);
+	intel_de_write_fw(i915, GMBUS4(i915), 0);
+	remove_wait_queue(&i915->display.gmbus.wait_queue, &wait);
 
 	return ret;
 }
 
-static unsigned int gmbus_max_xfer_size(struct drm_i915_private *dev_priv)
+static unsigned int gmbus_max_xfer_size(struct drm_i915_private *i915)
 {
-	return DISPLAY_VER(dev_priv) >= 9 ? GEN9_GMBUS_BYTE_COUNT_MAX :
+	return DISPLAY_VER(i915) >= 9 ? GEN9_GMBUS_BYTE_COUNT_MAX :
 	       GMBUS_BYTE_COUNT_MAX;
 }
 
 static int
-gmbus_xfer_read_chunk(struct drm_i915_private *dev_priv,
+gmbus_xfer_read_chunk(struct drm_i915_private *i915,
 		      unsigned short addr, u8 *buf, unsigned int len,
 		      u32 gmbus0_reg, u32 gmbus1_index)
 {
 	unsigned int size = len;
-	bool burst_read = len > gmbus_max_xfer_size(dev_priv);
+	bool burst_read = len > gmbus_max_xfer_size(i915);
 	bool extra_byte_added = false;
 
 	if (burst_read) {
···
 			len++;
 		}
 		size = len % 256 + 256;
-		intel_de_write_fw(dev_priv, GMBUS0,
+		intel_de_write_fw(i915, GMBUS0(i915),
 				  gmbus0_reg | GMBUS_BYTE_CNT_OVERRIDE);
 	}
 
-	intel_de_write_fw(dev_priv, GMBUS1,
+	intel_de_write_fw(i915, GMBUS1(i915),
 			  gmbus1_index | GMBUS_CYCLE_WAIT | (size << GMBUS_BYTE_COUNT_SHIFT) | (addr << GMBUS_SLAVE_ADDR_SHIFT) | GMBUS_SLAVE_READ | GMBUS_SW_RDY);
 	while (len) {
 		int ret;
 		u32 val, loop = 0;
 
-		ret = gmbus_wait(dev_priv, GMBUS_HW_RDY, GMBUS_HW_RDY_EN);
+		ret = gmbus_wait(i915, GMBUS_HW_RDY, GMBUS_HW_RDY_EN);
 		if (ret)
 			return ret;
 
-		val = intel_de_read_fw(dev_priv, GMBUS3);
+		val = intel_de_read_fw(i915, GMBUS3(i915));
 		do {
 			if (extra_byte_added && len == 1)
 				break;
···
 
 		if (burst_read && len == size - 4)
 			/* Reset the override bit */
-			intel_de_write_fw(dev_priv, GMBUS0, gmbus0_reg);
+			intel_de_write_fw(i915, GMBUS0(i915), gmbus0_reg);
 	}
 
 	return 0;
···
 #define INTEL_GMBUS_BURST_READ_MAX_LEN		767U
 
 static int
-gmbus_xfer_read(struct drm_i915_private *dev_priv, struct i2c_msg *msg,
+gmbus_xfer_read(struct drm_i915_private *i915, struct i2c_msg *msg,
 		u32 gmbus0_reg, u32 gmbus1_index)
 {
 	u8 *buf = msg->buf;
···
 	int ret;
 
 	do {
-		if (HAS_GMBUS_BURST_READ(dev_priv))
+		if (HAS_GMBUS_BURST_READ(i915))
 			len = min(rx_size, INTEL_GMBUS_BURST_READ_MAX_LEN);
 		else
-			len = min(rx_size, gmbus_max_xfer_size(dev_priv));
+			len = min(rx_size, gmbus_max_xfer_size(i915));
 
-		ret = gmbus_xfer_read_chunk(dev_priv, msg->addr, buf, len,
+		ret = gmbus_xfer_read_chunk(i915, msg->addr, buf, len,
 					    gmbus0_reg, gmbus1_index);
 		if (ret)
 			return ret;
···
 }
 
 static int
-gmbus_xfer_write_chunk(struct drm_i915_private *dev_priv,
+gmbus_xfer_write_chunk(struct drm_i915_private *i915,
 		       unsigned short addr, u8 *buf, unsigned int len,
 		       u32 gmbus1_index)
 {
···
 		len -= 1;
 	}
 
-	intel_de_write_fw(dev_priv, GMBUS3, val);
-	intel_de_write_fw(dev_priv, GMBUS1,
+	intel_de_write_fw(i915, GMBUS3(i915), val);
+	intel_de_write_fw(i915, GMBUS1(i915),
 			  gmbus1_index | GMBUS_CYCLE_WAIT | (chunk_size << GMBUS_BYTE_COUNT_SHIFT) | (addr << GMBUS_SLAVE_ADDR_SHIFT) | GMBUS_SLAVE_WRITE | GMBUS_SW_RDY);
 	while (len) {
 		int ret;
···
 			val |= *buf++ << (8 * loop);
 		} while (--len && ++loop < 4);
 
-		intel_de_write_fw(dev_priv, GMBUS3, val);
+		intel_de_write_fw(i915, GMBUS3(i915), val);
 
-		ret = gmbus_wait(dev_priv, GMBUS_HW_RDY, GMBUS_HW_RDY_EN);
+		ret = gmbus_wait(i915, GMBUS_HW_RDY, GMBUS_HW_RDY_EN);
 		if (ret)
 			return ret;
 	}
···
 }
 
 static int
-gmbus_xfer_write(struct drm_i915_private *dev_priv, struct i2c_msg *msg,
+gmbus_xfer_write(struct drm_i915_private *i915, struct i2c_msg *msg,
 		 u32 gmbus1_index)
 {
 	u8 *buf = msg->buf;
···
 	int ret;
 
 	do {
-		len = min(tx_size, gmbus_max_xfer_size(dev_priv));
+		len = min(tx_size, gmbus_max_xfer_size(i915));
 
-		ret = gmbus_xfer_write_chunk(dev_priv, msg->addr, buf, len,
+		ret = gmbus_xfer_write_chunk(i915, msg->addr, buf, len,
 					     gmbus1_index);
 		if (ret)
 			return ret;
···
 }
 
 static int
-gmbus_index_xfer(struct drm_i915_private *dev_priv, struct i2c_msg *msgs,
+gmbus_index_xfer(struct drm_i915_private *i915, struct i2c_msg *msgs,
 		 u32 gmbus0_reg)
 {
 	u32 gmbus1_index = 0;
···
 
 	/* GMBUS5 holds 16-bit index */
 	if (gmbus5)
-		intel_de_write_fw(dev_priv, GMBUS5, gmbus5);
+		intel_de_write_fw(i915, GMBUS5(i915), gmbus5);
 
 	if (msgs[1].flags & I2C_M_RD)
-		ret = gmbus_xfer_read(dev_priv, &msgs[1], gmbus0_reg,
+		ret = gmbus_xfer_read(i915, &msgs[1], gmbus0_reg,
 				      gmbus1_index);
 	else
-		ret = gmbus_xfer_write(dev_priv, &msgs[1], gmbus1_index);
+		ret = gmbus_xfer_write(i915, &msgs[1], gmbus1_index);
 
 	/* Clear GMBUS5 after each index transfer */
 	if (gmbus5)
-		intel_de_write_fw(dev_priv, GMBUS5, 0);
+		intel_de_write_fw(i915, GMBUS5(i915), 0);
 
 	return ret;
 }
···
 	      u32 gmbus0_source)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 	int i = 0, inc, try = 0;
 	int ret = 0;
 
 	/* Display WA #0868: skl,bxt,kbl,cfl,glk */
-	if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
-		bxt_gmbus_clock_gating(dev_priv, false);
-	else if (HAS_PCH_SPT(dev_priv) || HAS_PCH_CNP(dev_priv))
-		pch_gmbus_clock_gating(dev_priv, false);
+	if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
+		bxt_gmbus_clock_gating(i915, false);
+	else if (HAS_PCH_SPT(i915) || HAS_PCH_CNP(i915))
+		pch_gmbus_clock_gating(i915, false);
 
 retry:
-	intel_de_write_fw(dev_priv, GMBUS0, gmbus0_source | bus->reg0);
+	intel_de_write_fw(i915, GMBUS0(i915), gmbus0_source | bus->reg0);
 
 	for (; i < num; i += inc) {
 		inc = 1;
 		if (gmbus_is_index_xfer(msgs, i, num)) {
-			ret = gmbus_index_xfer(dev_priv, &msgs[i],
+			ret = gmbus_index_xfer(i915, &msgs[i],
 					       gmbus0_source | bus->reg0);
 			inc = 2; /* an index transmission is two msgs */
 		} else if (msgs[i].flags & I2C_M_RD) {
-			ret = gmbus_xfer_read(dev_priv, &msgs[i],
+			ret = gmbus_xfer_read(i915, &msgs[i],
 					      gmbus0_source | bus->reg0, 0);
 		} else {
-			ret = gmbus_xfer_write(dev_priv, &msgs[i], 0);
+			ret = gmbus_xfer_write(i915, &msgs[i], 0);
 		}
 
 		if (!ret)
-			ret = gmbus_wait(dev_priv,
+			ret = gmbus_wait(i915,
 					 GMBUS_HW_WAIT_PHASE, GMBUS_HW_WAIT_EN);
 		if (ret == -ETIMEDOUT)
 			goto timeout;
···
 	 * a STOP on the very first cycle. To simplify the code we
 	 * unconditionally generate the STOP condition with an additional gmbus
 	 * cycle. */
-	intel_de_write_fw(dev_priv, GMBUS1, GMBUS_CYCLE_STOP | GMBUS_SW_RDY);
+	intel_de_write_fw(i915, GMBUS1(i915), GMBUS_CYCLE_STOP | GMBUS_SW_RDY);
 
 	/* Mark the GMBUS interface as disabled after waiting for idle.
 	 * We will re-enable it at the start of the next xfer,
 	 * till then let it sleep.
 	 */
-	if (gmbus_wait_idle(dev_priv)) {
-		drm_dbg_kms(&dev_priv->drm,
+	if (gmbus_wait_idle(i915)) {
+		drm_dbg_kms(&i915->drm,
 			    "GMBUS [%s] timed out waiting for idle\n",
 			    adapter->name);
 		ret = -ETIMEDOUT;
 	}
-	intel_de_write_fw(dev_priv, GMBUS0, 0);
+	intel_de_write_fw(i915, GMBUS0(i915), 0);
 	ret = ret ?: i;
 	goto out;
 
···
 	 * it's slow responding and only answers on the 2nd retry.
 	 */
 	ret = -ENXIO;
-	if (gmbus_wait_idle(dev_priv)) {
-		drm_dbg_kms(&dev_priv->drm,
+	if (gmbus_wait_idle(i915)) {
+		drm_dbg_kms(&i915->drm,
 			    "GMBUS [%s] timed out after NAK\n",
 			    adapter->name);
 		ret = -ETIMEDOUT;
···
 	 * of resetting the GMBUS controller and so clearing the
 	 * BUS_ERROR raised by the slave's NAK.
 	 */
-	intel_de_write_fw(dev_priv, GMBUS1, GMBUS_SW_CLR_INT);
-	intel_de_write_fw(dev_priv, GMBUS1, 0);
-	intel_de_write_fw(dev_priv, GMBUS0, 0);
+	intel_de_write_fw(i915, GMBUS1(i915), GMBUS_SW_CLR_INT);
+	intel_de_write_fw(i915, GMBUS1(i915), 0);
+	intel_de_write_fw(i915, GMBUS0(i915), 0);
 
-	drm_dbg_kms(&dev_priv->drm, "GMBUS [%s] NAK for addr: %04x %c(%d)\n",
+	drm_dbg_kms(&i915->drm, "GMBUS [%s] NAK for addr: %04x %c(%d)\n",
 		    adapter->name, msgs[i].addr,
 		    (msgs[i].flags & I2C_M_RD) ? 'r' : 'w', msgs[i].len);
 
···
 	 * drm_do_probe_ddc_edid, which bails out on the first -ENXIO.
 	 */
 	if (ret == -ENXIO && i == 0 && try++ == 0) {
-		drm_dbg_kms(&dev_priv->drm,
+		drm_dbg_kms(&i915->drm,
 			    "GMBUS [%s] NAK on first message, retry\n",
 			    adapter->name);
 		goto retry;
···
 	goto out;
 
 timeout:
-	drm_dbg_kms(&dev_priv->drm,
+	drm_dbg_kms(&i915->drm,
 		    "GMBUS [%s] timed out, falling back to bit banging on pin %d\n",
 		    bus->adapter.name, bus->reg0 & 0xff);
-	intel_de_write_fw(dev_priv, GMBUS0, 0);
+	intel_de_write_fw(i915, GMBUS0(i915), 0);
 
 	/*
 	 * Hardware may not support GMBUS over these pins? Try GPIO bitbanging
···
 
 out:
 	/* Display WA #0868: skl,bxt,kbl,cfl,glk */
-	if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
-		bxt_gmbus_clock_gating(dev_priv, true);
-	else if (HAS_PCH_SPT(dev_priv) || HAS_PCH_CNP(dev_priv))
-		pch_gmbus_clock_gating(dev_priv, true);
+	if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
+		bxt_gmbus_clock_gating(i915, true);
+	else if (HAS_PCH_SPT(i915) || HAS_PCH_CNP(i915))
+		pch_gmbus_clock_gating(i915, true);
 
 	return ret;
 }
···
 gmbus_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, int num)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 	intel_wakeref_t wakeref;
 	int ret;
 
-	wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
+	wakeref = intel_display_power_get(i915, POWER_DOMAIN_GMBUS);
 
 	if (bus->force_bit) {
 		ret = i2c_bit_algo.master_xfer(adapter, msgs, num);
···
 			bus->force_bit |= GMBUS_FORCE_BIT_RETRY;
 	}
 
-	intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS, wakeref);
+	intel_display_power_put(i915, POWER_DOMAIN_GMBUS, wakeref);
 
 	return ret;
 }
···
 int intel_gmbus_output_aksv(struct i2c_adapter *adapter)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 	u8 cmd = DRM_HDCP_DDC_AKSV;
 	u8 buf[DRM_HDCP_KSV_LEN] = { 0 };
 	struct i2c_msg msgs[] = {
···
 	intel_wakeref_t wakeref;
 	int ret;
 
-	wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
-	mutex_lock(&dev_priv->display.gmbus.mutex);
+	wakeref = intel_display_power_get(i915, POWER_DOMAIN_GMBUS);
+	mutex_lock(&i915->display.gmbus.mutex);
 
 	/*
 	 * In order to output Aksv to the receiver, use an indexed write to
···
 	 */
 	ret = do_gmbus_xfer(adapter, msgs, ARRAY_SIZE(msgs), GMBUS_AKSV_SELECT);
 
-	mutex_unlock(&dev_priv->display.gmbus.mutex);
-	intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS, wakeref);
+	mutex_unlock(&i915->display.gmbus.mutex);
+	intel_display_power_put(i915, POWER_DOMAIN_GMBUS, wakeref);
 
 	return ret;
 }
···
 			   unsigned int flags)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 
-	mutex_lock(&dev_priv->display.gmbus.mutex);
+	mutex_lock(&i915->display.gmbus.mutex);
 }
 
 static int gmbus_trylock_bus(struct i2c_adapter *adapter,
 			     unsigned int flags)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 
-	return mutex_trylock(&dev_priv->display.gmbus.mutex);
+	return mutex_trylock(&i915->display.gmbus.mutex);
 }
 
 static void gmbus_unlock_bus(struct i2c_adapter *adapter,
 			     unsigned int flags)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 
-	mutex_unlock(&dev_priv->display.gmbus.mutex);
+	mutex_unlock(&i915->display.gmbus.mutex);
 }
 
 static const struct i2c_lock_operations gmbus_lock_ops = {
···
 
 /**
  * intel_gmbus_setup - instantiate all Intel i2c GMBuses
- * @dev_priv: i915 device private
+ * @i915: i915 device private
  */
-int intel_gmbus_setup(struct drm_i915_private *dev_priv)
+int intel_gmbus_setup(struct drm_i915_private *i915)
 {
-	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
+	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
 	unsigned int pin;
 	int ret;
 
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		dev_priv->display.gmbus.mmio_base = VLV_DISPLAY_BASE;
-	else if (!HAS_GMCH(dev_priv))
+	if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
+		i915->display.gmbus.mmio_base = VLV_DISPLAY_BASE;
+	else if (!HAS_GMCH(i915))
 		/*
 		 * Broxton uses the same PCH offsets for South Display Engine,
 		 * even though it doesn't have a PCH.
 		 */
-		dev_priv->display.gmbus.mmio_base = PCH_DISPLAY_BASE;
+		i915->display.gmbus.mmio_base = PCH_DISPLAY_BASE;
 
-	mutex_init(&dev_priv->display.gmbus.mutex);
-	init_waitqueue_head(&dev_priv->display.gmbus.wait_queue);
+	mutex_init(&i915->display.gmbus.mutex);
+	init_waitqueue_head(&i915->display.gmbus.wait_queue);
 
-	for (pin = 0; pin < ARRAY_SIZE(dev_priv->display.gmbus.bus); pin++) {
+	for (pin = 0; pin < ARRAY_SIZE(i915->display.gmbus.bus); pin++) {
 		const struct gmbus_pin *gmbus_pin;
 		struct intel_gmbus *bus;
 
-		gmbus_pin = get_gmbus_pin(dev_priv, pin);
+		gmbus_pin = get_gmbus_pin(i915, pin);
 		if (!gmbus_pin)
 			continue;
 
···
 			 "i915 gmbus %s", gmbus_pin->name);
 
 		bus->adapter.dev.parent = &pdev->dev;
-		bus->dev_priv = dev_priv;
+		bus->i915 = i915;
 
 		bus->adapter.algo = &gmbus_algorithm;
 		bus->adapter.lock_ops = &gmbus_lock_ops;
···
 		bus->reg0 = pin | GMBUS_RATE_100KHZ;
 
 		/* gmbus seems to be broken on i830 */
-		if (IS_I830(dev_priv))
+		if (IS_I830(i915))
 			bus->force_bit = 1;
 
-		intel_gpio_setup(bus, GPIO(gmbus_pin->gpio));
+		intel_gpio_setup(bus, GPIO(i915, gmbus_pin->gpio));
 
 		ret = i2c_add_adapter(&bus->adapter);
 		if (ret) {
···
 			goto err;
 		}
 
-		dev_priv->display.gmbus.bus[pin] = bus;
+		i915->display.gmbus.bus[pin] = bus;
 	}
 
-	intel_gmbus_reset(dev_priv);
+	intel_gmbus_reset(i915);
 
 	return 0;
 
 err:
-	intel_gmbus_teardown(dev_priv);
+	intel_gmbus_teardown(i915);
 
 	return ret;
 }
 
-struct i2c_adapter *intel_gmbus_get_adapter(struct drm_i915_private *dev_priv,
+struct i2c_adapter *intel_gmbus_get_adapter(struct drm_i915_private *i915,
 					    unsigned int pin)
 {
-	if (drm_WARN_ON(&dev_priv->drm, pin >= ARRAY_SIZE(dev_priv->display.gmbus.bus) ||
-			!dev_priv->display.gmbus.bus[pin]))
+	if (drm_WARN_ON(&i915->drm, pin >= ARRAY_SIZE(i915->display.gmbus.bus) ||
+			!i915->display.gmbus.bus[pin]))
 		return NULL;
 
-	return &dev_priv->display.gmbus.bus[pin]->adapter;
+	return &i915->display.gmbus.bus[pin]->adapter;
 }
 
 void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit)
 {
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
-	struct drm_i915_private *dev_priv = bus->dev_priv;
+	struct drm_i915_private *i915 = bus->i915;
 
-	mutex_lock(&dev_priv->display.gmbus.mutex);
+	mutex_lock(&i915->display.gmbus.mutex);
 
 	bus->force_bit += force_bit ? 1 : -1;
-	drm_dbg_kms(&dev_priv->drm,
+	drm_dbg_kms(&i915->drm,
 		    "%sabling bit-banging on %s. force bit now %d\n",
 		    force_bit ? "en" : "dis", adapter->name,
 		    bus->force_bit);
 
-	mutex_unlock(&dev_priv->display.gmbus.mutex);
+	mutex_unlock(&i915->display.gmbus.mutex);
 }
 
 bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
···
 	return bus->force_bit;
 }
 
-void intel_gmbus_teardown(struct drm_i915_private *dev_priv)
+void intel_gmbus_teardown(struct drm_i915_private *i915)
 {
 	unsigned int pin;
 
-	for (pin = 0; pin < ARRAY_SIZE(dev_priv->display.gmbus.bus); pin++) {
+	for (pin = 0; pin < ARRAY_SIZE(i915->display.gmbus.bus); pin++) {
 		struct intel_gmbus *bus;
 
-		bus = dev_priv->display.gmbus.bus[pin];
+		bus = i915->display.gmbus.bus[pin];
 		if (!bus)
 			continue;
 
 		i2c_del_adapter(&bus->adapter);
 
 		kfree(bus);
-		dev_priv->display.gmbus.bus[pin] = NULL;
+		i915->display.gmbus.bus[pin] = NULL;
 	}
 }

drivers/gpu/drm/i915/display/intel_gmbus.h

···
 #define GMBUS_PIN_2_BXT		2
 #define GMBUS_PIN_3_BXT		3
 #define GMBUS_PIN_4_CNP		4
+#define GMBUS_PIN_5_MTP		5
 #define GMBUS_PIN_9_TC1_ICP	9
 #define GMBUS_PIN_10_TC2_ICP	10
 #define GMBUS_PIN_11_TC3_ICP	11

drivers/gpu/drm/i915/display/intel_gmbus_regs.h

···
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef __INTEL_GMBUS_REGS_H__
+#define __INTEL_GMBUS_REGS_H__
+
+#include "i915_reg_defs.h"
+
+#define GMBUS_MMIO_BASE(__i915) ((__i915)->display.gmbus.mmio_base)
+
+#define GPIO(__i915, gpio)	_MMIO(GMBUS_MMIO_BASE(__i915) + 0x5010 + 4 * (gpio))
+#define   GPIO_CLOCK_DIR_MASK		(1 << 0)
+#define   GPIO_CLOCK_DIR_IN		(0 << 1)
+#define   GPIO_CLOCK_DIR_OUT		(1 << 1)
+#define   GPIO_CLOCK_VAL_MASK		(1 << 2)
+#define   GPIO_CLOCK_VAL_OUT		(1 << 3)
+#define   GPIO_CLOCK_VAL_IN		(1 << 4)
+#define   GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
+#define   GPIO_DATA_DIR_MASK		(1 << 8)
+#define   GPIO_DATA_DIR_IN		(0 << 9)
+#define   GPIO_DATA_DIR_OUT		(1 << 9)
+#define   GPIO_DATA_VAL_MASK		(1 << 10)
+#define   GPIO_DATA_VAL_OUT		(1 << 11)
+#define   GPIO_DATA_VAL_IN		(1 << 12)
+#define   GPIO_DATA_PULLUP_DISABLE	(1 << 13)
+
+/* clock/port select */
+#define GMBUS0(__i915)		_MMIO(GMBUS_MMIO_BASE(__i915) + 0x5100)
+#define   GMBUS_AKSV_SELECT		(1 << 11)
+#define   GMBUS_RATE_100KHZ		(0 << 8)
+#define   GMBUS_RATE_50KHZ		(1 << 8)
+#define   GMBUS_RATE_400KHZ		(2 << 8) /* reserved on Pineview */
+#define   GMBUS_RATE_1MHZ		(3 << 8) /* reserved on Pineview */
+#define   GMBUS_HOLD_EXT		(1 << 7) /* 300ns hold time, rsvd on Pineview */
+#define   GMBUS_BYTE_CNT_OVERRIDE	(1 << 6)
+
+/* command/status */
+#define GMBUS1(__i915)		_MMIO(GMBUS_MMIO_BASE(__i915) + 0x5104)
+#define   GMBUS_SW_CLR_INT		(1 << 31)
+#define   GMBUS_SW_RDY			(1 << 30)
+#define   GMBUS_ENT			(1 << 29) /* enable timeout */
+#define   GMBUS_CYCLE_NONE		(0 << 25)
+#define   GMBUS_CYCLE_WAIT		(1 << 25)
+#define   GMBUS_CYCLE_INDEX		(2 << 25)
+#define   GMBUS_CYCLE_STOP		(4 << 25)
+#define   GMBUS_BYTE_COUNT_SHIFT	16
+#define   GMBUS_BYTE_COUNT_MAX		256U
+#define   GEN9_GMBUS_BYTE_COUNT_MAX	511U
+#define   GMBUS_SLAVE_INDEX_SHIFT	8
+#define   GMBUS_SLAVE_ADDR_SHIFT	1
+#define   GMBUS_SLAVE_READ		(1 << 0)
+#define   GMBUS_SLAVE_WRITE		(0 << 0)
+
+/* status */
+#define GMBUS2(__i915)		_MMIO(GMBUS_MMIO_BASE(__i915) + 0x5108)
+#define   GMBUS_INUSE			(1 << 15)
+#define   GMBUS_HW_WAIT_PHASE		(1 << 14)
+#define   GMBUS_STALL_TIMEOUT		(1 << 13)
+#define   GMBUS_INT			(1 << 12)
+#define   GMBUS_HW_RDY			(1 << 11)
+#define   GMBUS_SATOER			(1 << 10)
+#define   GMBUS_ACTIVE			(1 << 9)
+
+/* data buffer bytes 3-0 */
+#define GMBUS3(__i915)		_MMIO(GMBUS_MMIO_BASE(__i915) + 0x510c)
+
+/* interrupt mask (Pineview+) */
+#define GMBUS4(__i915)		_MMIO(GMBUS_MMIO_BASE(__i915) + 0x5110)
+#define   GMBUS_SLAVE_TIMEOUT_EN	(1 << 4)
+#define   GMBUS_NAK_EN			(1 << 3)
+#define   GMBUS_IDLE_EN			(1 << 2)
+#define   GMBUS_HW_WAIT_EN		(1 << 1)
+#define   GMBUS_HW_RDY_EN		(1 << 0)
+
+/* byte index */
+#define GMBUS5(__i915)		_MMIO(GMBUS_MMIO_BASE(__i915) + 0x5120)
+#define   GMBUS_2BYTE_INDEX_EN		(1 << 31)
+
+#endif /* __INTEL_GMBUS_REGS_H__ */

drivers/gpu/drm/i915/display/intel_hdcp.c

···
 		return false;
 
 	/* MEI interface is solid */
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	if (!dev_priv->hdcp_comp_added ||  !dev_priv->hdcp_master) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	if (!dev_priv->display.hdcp.comp_added ||  !dev_priv->display.hdcp.master) {
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return false;
 	}
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	/* Sink's capability for HDCP2.2 */
 	hdcp->shim->hdcp_2_2_capable(dig_port, &capable);
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
···
 	if (ret)
 		drm_dbg_kms(&dev_priv->drm, "Prepare_ake_init failed. %d\n",
 			    ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
···
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm, "Verify rx_cert failed. %d\n",
 			    ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
 	ret = comp->ops->verify_hprime(comp->mei_dev, data, rx_hprime);
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm, "Verify hprime failed. %d\n", ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
···
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm, "Store pairing info failed. %d\n",
 			    ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
···
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm, "Prepare lc_init failed. %d\n",
 			    ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
···
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm, "Verify L_Prime failed. %d\n",
 			    ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
···
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm, "Get session key failed. %d\n",
 			    ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
···
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm,
 			    "Verify rep topology failed. %d\n", ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
 	ret = comp->ops->verify_mprime(comp->mei_dev, data, stream_ready);
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm, "Verify mprime failed. %d\n", ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
···
 	if (ret < 0)
 		drm_dbg_kms(&dev_priv->drm, "Enable hdcp auth failed. %d\n",
 			    ret);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct i915_hdcp_comp_master *comp;
 	int ret;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	comp = dev_priv->hdcp_master;
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	comp = dev_priv->display.hdcp.master;
 
 	if (!comp || !comp->ops) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return -EINVAL;
 	}
 
 	ret = comp->ops->close_hdcp_session(comp->mei_dev,
 					     &dig_port->hdcp_port_data);
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return ret;
 }
···
 	struct drm_i915_private *dev_priv = kdev_to_i915(i915_kdev);
 
 	drm_dbg(&dev_priv->drm, "I915 HDCP comp bind\n");
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	dev_priv->hdcp_master = (struct i915_hdcp_comp_master *)data;
-	dev_priv->hdcp_master->mei_dev = mei_kdev;
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	dev_priv->display.hdcp.master = (struct i915_hdcp_comp_master *)data;
+	dev_priv->display.hdcp.master->mei_dev = mei_kdev;
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	return 0;
 }
···
 	struct drm_i915_private *dev_priv = kdev_to_i915(i915_kdev);
 
 	drm_dbg(&dev_priv->drm, "I915 HDCP comp unbind\n");
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	dev_priv->hdcp_master = NULL;
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	dev_priv->display.hdcp.master = NULL;
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 }
 
 static const struct component_ops i915_hdcp_component_ops = {
···
 	if (!is_hdcp2_supported(dev_priv))
 		return;
 
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	drm_WARN_ON(&dev_priv->drm, dev_priv->hdcp_comp_added);
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	drm_WARN_ON(&dev_priv->drm, dev_priv->display.hdcp.comp_added);
 
-	dev_priv->hdcp_comp_added = true;
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	dev_priv->display.hdcp.comp_added = true;
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 	ret = component_add_typed(dev_priv->drm.dev, &i915_hdcp_component_ops,
 				  I915_COMPONENT_HDCP);
 	if (ret < 0) {
 		drm_dbg_kms(&dev_priv->drm, "Failed at component add(%d)\n",
 			    ret);
-		mutex_lock(&dev_priv->hdcp_comp_mutex);
-		dev_priv->hdcp_comp_added = false;
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+		mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+		dev_priv->display.hdcp.comp_added = false;
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return;
 	}
 }
···
 
 void intel_hdcp_component_fini(struct drm_i915_private *dev_priv)
 {
-	mutex_lock(&dev_priv->hdcp_comp_mutex);
-	if (!dev_priv->hdcp_comp_added) {
-		mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	mutex_lock(&dev_priv->display.hdcp.comp_mutex);
+	if (!dev_priv->display.hdcp.comp_added) {
+		mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 		return;
 	}
 
-	dev_priv->hdcp_comp_added = false;
-	mutex_unlock(&dev_priv->hdcp_comp_mutex);
+	dev_priv->display.hdcp.comp_added = false;
+	mutex_unlock(&dev_priv->display.hdcp.comp_mutex);
 
 	component_del(dev_priv->drm.dev, &i915_hdcp_component_ops);
 }

drivers/gpu/drm/i915/display/intel_hdmi.c

···
 	 *  1.5x for 12bpc
 	 *  1.25x for 10bpc
 	 */
-	return clock * bpc / 8;
+	return DIV_ROUND_CLOSEST(clock * bpc, 8);
 }
 
 static bool intel_hdmi_source_bpc_possible(struct drm_i915_private *i915, int bpc)

drivers/gpu/drm/i915/display/intel_lvds.c

···
 
 	/* Skip init on machines we know falsely report LVDS */
 	if (dmi_check_system(intel_no_lvds)) {
-		drm_WARN(dev, !dev_priv->vbt.int_lvds_support,
+		drm_WARN(dev, !dev_priv->display.vbt.int_lvds_support,
 			 "Useless DMI match. Internal LVDS support disabled by VBT\n");
 		return;
 	}
 
-	if (!dev_priv->vbt.int_lvds_support) {
+	if (!dev_priv->display.vbt.int_lvds_support) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "Internal LVDS support disabled by VBT\n");
 		return;

drivers/gpu/drm/i915/display/intel_modeset_setup.c

···
 #include "intel_modeset_setup.h"
 #include "intel_pch_display.h"
 #include "intel_pm.h"
+#include "skl_watermark.h"
 
 static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 					struct drm_modeset_acquire_ctx *ctx)
···
 	struct intel_encoder *encoder;
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	struct intel_bw_state *bw_state =
-		to_intel_bw_state(i915->bw_obj.state);
+		to_intel_bw_state(i915->display.bw.obj.state);
 	struct intel_cdclk_state *cdclk_state =
-		to_intel_cdclk_state(i915->cdclk.obj.state);
+		to_intel_cdclk_state(i915->display.cdclk.obj.state);
 	struct intel_dbuf_state *dbuf_state =
-		to_intel_dbuf_state(i915->dbuf.obj.state);
+		to_intel_dbuf_state(i915->display.dbuf.obj.state);
 	struct intel_crtc_state *crtc_state =
 		to_intel_crtc_state(crtc->base.state);
 	struct intel_plane *plane;
···
 static void intel_modeset_readout_hw_state(struct drm_i915_private *i915)
 {
 	struct intel_cdclk_state *cdclk_state =
-		to_intel_cdclk_state(i915->cdclk.obj.state);
+		to_intel_cdclk_state(i915->display.cdclk.obj.state);
 	struct intel_dbuf_state *dbuf_state =
-		to_intel_dbuf_state(i915->dbuf.obj.state);
+		to_intel_dbuf_state(i915->display.dbuf.obj.state);
 	enum pipe pipe;
 	struct intel_crtc *crtc;
 	struct intel_encoder *encoder;
···
 
 	for_each_intel_crtc(&i915->drm, crtc) {
 		struct intel_bw_state *bw_state =
-			to_intel_bw_state(i915->bw_obj.state);
+			to_intel_bw_state(i915->display.bw.obj.state);
 		struct intel_crtc_state *crtc_state =
 			to_intel_crtc_state(crtc->base.state);
 		struct intel_plane *plane;

drivers/gpu/drm/i915/display/intel_modeset_verify.c

···
 #include "intel_display_types.h"
 #include "intel_fdi.h"
 #include "intel_modeset_verify.h"
-#include "intel_pm.h"
 #include "intel_snps_phy.h"
+#include "skl_watermark.h"
 
 /*
  * Cross check the actual hw state with our own modeset state tracking (and its
···
 
 		/*
 		 * FDI already provided one idea for the dotclock.
-		 * Yell if the encoder disagrees.
+		 * Yell if the encoder disagrees. Allow for slight
+		 * rounding differences.
 		 */
-		drm_WARN(&dev_priv->drm,
-			 !intel_fuzzy_clock_check(fdi_dotclock, dotclock),
+		drm_WARN(&dev_priv->drm, abs(fdi_dotclock - dotclock) > 1,
 			 "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
 			 fdi_dotclock, dotclock);
 	}

drivers/gpu/drm/i915/display/intel_opregion.c

···
 
 static int check_swsci_function(struct drm_i915_private *i915, u32 function)
 {
-	struct opregion_swsci *swsci = i915->opregion.swsci;
+	struct opregion_swsci *swsci = i915->display.opregion.swsci;
 	u32 main_function, sub_function;
 
 	if (!swsci)
···
 
 	/* Check if we can call the function. See swsci_setup for details. */
 	if (main_function == SWSCI_SBCB) {
-		if ((i915->opregion.swsci_sbcb_sub_functions &
+		if ((i915->display.opregion.swsci_sbcb_sub_functions &
 		     (1 << sub_function)) == 0)
 			return -EINVAL;
 	} else if (main_function == SWSCI_GBDA) {
-		if ((i915->opregion.swsci_gbda_sub_functions &
+		if ((i915->display.opregion.swsci_gbda_sub_functions &
 		     (1 << sub_function)) == 0)
 			return -EINVAL;
 	}
···
 static int swsci(struct drm_i915_private *dev_priv,
 		 u32 function, u32 parm, u32 *parm_out)
 {
-	struct opregion_swsci *swsci = dev_priv->opregion.swsci;
+	struct opregion_swsci *swsci = dev_priv->display.opregion.swsci;
 	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
 	u32 scic, dslp;
 	u16 swsci_val;
···
 {
 	struct intel_connector *connector;
 	struct drm_connector_list_iter conn_iter;
-	struct opregion_asle *asle = dev_priv->opregion.asle;
+	struct opregion_asle *asle = dev_priv->display.opregion.asle;
 	struct drm_device *dev = &dev_priv->drm;
 
 	drm_dbg(&dev_priv->drm, "bclp = 0x%08x\n", bclp);
···
 	struct intel_opregion *opregion =
 		container_of(work, struct intel_opregion, asle_work);
 	struct drm_i915_private *dev_priv =
-		container_of(opregion, struct drm_i915_private, opregion);
-	struct opregion_asle *asle = dev_priv->opregion.asle;
+		container_of(opregion, struct drm_i915_private, display.opregion);
+	struct opregion_asle *asle = dev_priv->display.opregion.asle;
 	u32 aslc_stat = 0;
 	u32 aslc_req;
 
···
 
 void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)
 {
-	if (dev_priv->opregion.asle)
-		schedule_work(&dev_priv->opregion.asle_work);
+	if (dev_priv->display.opregion.asle)
+		schedule_work(&dev_priv->display.opregion.asle_work);
 }
 
 #define ACPI_EV_DISPLAY_SWITCH (1<<0)
···
 
 static void intel_didl_outputs(struct drm_i915_private *dev_priv)
 {
-	struct intel_opregion *opregion = &dev_priv->opregion;
+	struct intel_opregion *opregion = &dev_priv->display.opregion;
 	struct intel_connector *connector;
 	struct drm_connector_list_iter conn_iter;
 	int i = 0, max_outputs;
···
 
 static void intel_setup_cadls(struct drm_i915_private *dev_priv)
 {
-	struct intel_opregion *opregion = &dev_priv->opregion;
+	struct intel_opregion *opregion = &dev_priv->display.opregion;
 	struct intel_connector *connector;
 	struct drm_connector_list_iter conn_iter;
 	int i = 0;
···
 
 static void swsci_setup(struct drm_i915_private *dev_priv)
 {
-	struct intel_opregion *opregion = &dev_priv->opregion;
+	struct intel_opregion *opregion = &dev_priv->display.opregion;
 	bool requested_callbacks = false;
 	u32 tmp;
 
···
 
 static int intel_load_vbt_firmware(struct drm_i915_private *dev_priv)
 {
-	struct intel_opregion *opregion = &dev_priv->opregion;
+	struct intel_opregion *opregion = &dev_priv->display.opregion;
 	const struct firmware *fw = NULL;
 	const char *name = dev_priv->params.vbt_firmware;
 	int ret;
···
 
 int intel_opregion_setup(struct drm_i915_private *dev_priv)
 {
-	struct intel_opregion *opregion = &dev_priv->opregion;
+	struct intel_opregion *opregion = &dev_priv->display.opregion;
 	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
 	u32 asls, mboxes;
 	char buf[sizeof(OPREGION_SIGNATURE)];
···
 {
 	struct drm_connector *connector = &intel_connector->base;
 	struct drm_i915_private *i915 = to_i915(connector->dev);
-	struct intel_opregion *opregion = &i915->opregion;
+	struct intel_opregion *opregion = &i915->display.opregion;
 	const void *in_edid;
 	const struct edid *edid;
 	struct edid *new_edid;
···
 
 bool intel_opregion_headless_sku(struct drm_i915_private *i915)
 {
-	struct intel_opregion *opregion = &i915->opregion;
+	struct intel_opregion *opregion = &i915->display.opregion;
 	struct opregion_header *header = opregion->header;
 
 	if (!header || header->over.major < 2 ||
···
 
 void intel_opregion_register(struct drm_i915_private *i915)
 {
-	struct intel_opregion *opregion = &i915->opregion;
+	struct intel_opregion *opregion = &i915->display.opregion;
 
 	if (!opregion->header)
 		return;
···
 
 void intel_opregion_resume(struct drm_i915_private *i915)
 {
-	struct intel_opregion *opregion = &i915->opregion;
+	struct intel_opregion *opregion = &i915->display.opregion;
 
 	if (!opregion->header)
 		return;
···
 
 void intel_opregion_suspend(struct drm_i915_private *i915, pci_power_t state)
 {
-	struct intel_opregion *opregion = &i915->opregion;
+	struct intel_opregion *opregion = &i915->display.opregion;
 
 	if (!opregion->header)
 		return;
···
 	if (opregion->asle)
 		opregion->asle->ardy = ASLE_ARDY_NOT_READY;
 
-	cancel_work_sync(&i915->opregion.asle_work);
+	cancel_work_sync(&i915->display.opregion.asle_work);
 
 	if (opregion->acpi)
 		opregion->acpi->drdy = 0;
···
 
 void intel_opregion_unregister(struct drm_i915_private *i915)
 {
-	struct intel_opregion *opregion = &i915->opregion;
+	struct intel_opregion *opregion = &i915->display.opregion;
 
 	intel_opregion_suspend(i915, PCI_D1);
 

drivers/gpu/drm/i915/display/intel_overlay.c

···
 
 	/* WA_OVERLAY_CLKGATE:alm */
 	if (enable)
-		intel_de_write(dev_priv, DSPCLK_GATE_D, 0);
+		intel_de_write(dev_priv, DSPCLK_GATE_D(dev_priv), 0);
 	else
-		intel_de_write(dev_priv, DSPCLK_GATE_D,
+		intel_de_write(dev_priv, DSPCLK_GATE_D(dev_priv),
 			       OVRUNIT_CLOCK_GATE_DISABLE);
 
 	/* WA_DISABLE_L2CACHE_CLOCK_GATING:alm */

drivers/gpu/drm/i915/display/intel_panel.c

···
 #include "intel_display_types.h"
 #include "intel_drrs.h"
 #include "intel_panel.h"
+#include "intel_quirks.h"
 
 bool intel_panel_use_ssc(struct drm_i915_private *i915)
 {
 	if (i915->params.panel_use_ssc >= 0)
 		return i915->params.panel_use_ssc != 0;
-	return i915->vbt.lvds_use_ssc
-		&& !(i915->quirks & QUIRK_LVDS_SSC_DISABLE);
+	return i915->display.vbt.lvds_use_ssc &&
+		!intel_has_quirk(i915, QUIRK_LVDS_SSC_DISABLE);
 }
 
 const struct drm_display_mode *
···
 		mode->clock != preferred_mode->clock;
 }
 
-static bool is_alt_vrr_mode(const struct drm_display_mode *mode,
-			    const struct drm_display_mode *preferred_mode)
+static bool is_alt_fixed_mode(const struct drm_display_mode *mode,
+			      const struct drm_display_mode *preferred_mode)
 {
 	return drm_mode_match(mode, preferred_mode,
 			      DRM_MODE_MATCH_FLAGS |
 			      DRM_MODE_MATCH_3D_FLAGS) &&
 		mode->hdisplay == preferred_mode->hdisplay &&
-		mode->vdisplay == preferred_mode->vdisplay &&
-		mode->clock != preferred_mode->clock;
+		mode->vdisplay == preferred_mode->vdisplay;
 }
 
 const struct drm_display_mode *
···
 			max_vrefresh = vrefresh;
 			best_mode = fixed_mode;
 		}
+	}
+
+	return best_mode;
+}
+
+const struct drm_display_mode *
+intel_panel_highest_mode(struct intel_connector *connector,
+			 const struct drm_display_mode *adjusted_mode)
+{
+	const struct drm_display_mode *fixed_mode, *best_mode = adjusted_mode;
+
+	/* pick the fixed_mode that has the highest clock */
+	list_for_each_entry(fixed_mode, &connector->panel.fixed_modes, head) {
+		if (fixed_mode->clock > best_mode->clock)
+			best_mode = fixed_mode;
 	}
 
 	return best_mode;
···
 	return 0;
 }
 
-static bool is_alt_fixed_mode(const struct drm_display_mode *mode,
-			      const struct drm_display_mode *preferred_mode,
-			      bool has_vrr)
-{
-	/* is_alt_drrs_mode() is a subset of is_alt_vrr_mode() */
-	if (has_vrr)
-		return is_alt_vrr_mode(mode, preferred_mode);
-	else
-		return is_alt_drrs_mode(mode, preferred_mode);
-}
-
-static void intel_panel_add_edid_alt_fixed_modes(struct intel_connector *connector,
-						 bool has_vrr)
+static void intel_panel_add_edid_alt_fixed_modes(struct intel_connector *connector)
 {
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	const struct drm_display_mode *preferred_mode =
···
 	struct drm_display_mode *mode, *next;
 
 	list_for_each_entry_safe(mode, next, &connector->base.probed_modes, head) {
-		if (!is_alt_fixed_mode(mode, preferred_mode, has_vrr))
+		if (!is_alt_fixed_mode(mode, preferred_mode))
 			continue;
 
 		drm_dbg_kms(&dev_priv->drm,
···
 {
 	intel_panel_add_edid_preferred_mode(connector);
 	if (intel_panel_preferred_fixed_mode(connector) && (has_drrs || has_vrr))
-		intel_panel_add_edid_alt_fixed_modes(connector, has_vrr);
+		intel_panel_add_edid_alt_fixed_modes(connector);
 	intel_panel_destroy_probed_modes(connector);
 }
 

drivers/gpu/drm/i915/display/intel_panel.h

···
 const struct drm_display_mode *
 intel_panel_downclock_mode(struct intel_connector *connector,
 			   const struct drm_display_mode *adjusted_mode);
+const struct drm_display_mode *
+intel_panel_highest_mode(struct intel_connector *connector,
+			 const struct drm_display_mode *adjusted_mode);
 int intel_panel_get_modes(struct intel_connector *connector);
 enum drrs_type intel_panel_drrs_type(struct intel_connector *connector);
 enum drm_mode_status

drivers/gpu/drm/i915/display/intel_pch_refclk.c

···
 	}
 }
 
+int lpt_iclkip(const struct intel_crtc_state *crtc_state)
+{
+	struct iclkip_params p;
+
+	lpt_compute_iclkip(&p, crtc_state->hw.adjusted_mode.crtc_clock);
+
+	return lpt_iclkip_freq(&p);
+}
+
 /* Program iCLKIP clock to the desired frequency */
 void lpt_program_iclkip(const struct intel_crtc_state *crtc_state)
 {
···
 	lpt_disable_iclkip(dev_priv);
 
 	lpt_compute_iclkip(&p, clock);
+	drm_WARN_ON(&dev_priv->drm, lpt_iclkip_freq(&p) != clock);
 
 	/* This should not happen with any sane values */
 	drm_WARN_ON(&dev_priv->drm, SBI_SSCDIVINTPHASE_DIVSEL(p.divsel) &
···
 	}
 
 	if (HAS_PCH_IBX(dev_priv)) {
-		has_ck505 = dev_priv->vbt.display_clock_mode;
+		has_ck505 = dev_priv->display.vbt.display_clock_mode;
 		can_ssc = has_ck505;
 	} else {
 		has_ck505 = false;
···
 		}
 	}
 
-	BUG_ON(val != final);
+	drm_WARN_ON(&dev_priv->drm, val != final);
 }
 
 /*

drivers/gpu/drm/i915/display/intel_pch_refclk.h

···
 void lpt_program_iclkip(const struct intel_crtc_state *crtc_state);
 void lpt_disable_iclkip(struct drm_i915_private *dev_priv);
 int lpt_get_iclkip(struct drm_i915_private *dev_priv);
+int lpt_iclkip(const struct intel_crtc_state *crtc_state);
 
 void intel_init_pch_refclk(struct drm_i915_private *dev_priv);
 void lpt_disable_clkout_dp(struct drm_i915_private *dev_priv);

drivers/gpu/drm/i915/display/intel_pps.c

···
 #include "intel_dpll.h"
 #include "intel_lvds.h"
 #include "intel_pps.h"
+#include "intel_quirks.h"
 
 static void vlv_steal_power_sequencer(struct drm_i915_private *dev_priv,
 				      enum pipe pipe);
···
 	 * just fails to power back on. Increasing the delay to 800ms
 	 * seems sufficient to avoid this problem.
 	 */
-	if (dev_priv->quirks & QUIRK_INCREASE_T12_DELAY) {
+	if (intel_has_quirk(dev_priv, QUIRK_INCREASE_T12_DELAY)) {
 		vbt->t11_t12 = max_t(u16, vbt->t11_t12, 1300 * 10);
 		drm_dbg_kms(&dev_priv->drm,
 			    "Increasing T12 panel delay as per the quirk to %d\n",

drivers/gpu/drm/i915/display/intel_psr.c

···
 	hblank_total = adjusted_mode->crtc_hblank_end - adjusted_mode->crtc_hblank_start;
 	hblank_ns = div_u64(1000000ULL * hblank_total, adjusted_mode->crtc_clock);
 
-	/* From spec: (72 / number of lanes) * 1000 / symbol clock frequency MHz */
-	req_ns = (72 / crtc_state->lane_count) * 1000 / (crtc_state->port_clock / 1000);
+	/* From spec: ((60 / number of lanes) + 11) * 1000 / symbol clock frequency MHz */
+	req_ns = ((60 / crtc_state->lane_count) + 11) * 1000 / (crtc_state->port_clock / 1000);
 
 	if ((hblank_ns - req_ns) > 100)
 		return true;
 
-	if (DISPLAY_VER(dev_priv) < 13 || intel_dp->edp_dpcd[0] < DP_EDP_14b)
+	/* Not supported <13 / Wa_22012279113:adl-p */
+	if (DISPLAY_VER(dev_priv) <= 13 || intel_dp->edp_dpcd[0] < DP_EDP_14b)
 		return false;
 
 	crtc_state->req_psr2_sdp_prior_scanline = true;
···
 					     new_plane_state, i) {
 		struct drm_rect src, damaged_area = { .x1 = 0, .y1 = -1,
 						      .x2 = INT_MAX };
-		struct drm_atomic_helper_damage_iter iter;
-		struct drm_rect clip;
 
 		if (new_plane_state->uapi.crtc != crtc_state->uapi.crtc)
 			continue;
···
 			continue;
 		}
 
-		drm_rect_fp_to_int(&src, &new_plane_state->uapi.src);
+		src = drm_plane_state_src(&new_plane_state->uapi);
+		drm_rect_fp_to_int(&src, &src);
 
-		drm_atomic_helper_damage_iter_init(&iter,
-						   &old_plane_state->uapi,
-						   &new_plane_state->uapi);
-		drm_atomic_for_each_plane_damage(&iter, &clip) {
-			if (drm_rect_intersect(&clip, &src))
-				clip_area_update(&damaged_area, &clip,
-						 &crtc_state->pipe_src);
-		}
-
-		if (damaged_area.y1 == -1)
+		if (!drm_atomic_helper_damage_merged(&old_plane_state->uapi,
+						     &new_plane_state->uapi, &damaged_area))
 			continue;
 
 		damaged_area.y1 += new_plane_state->uapi.dst.y1 - src.y1;
 		damaged_area.y2 += new_plane_state->uapi.dst.y1 - src.y1;
+		damaged_area.x1 += new_plane_state->uapi.dst.x1 - src.x1;
+		damaged_area.x2 += new_plane_state->uapi.dst.x1 - src.x1;
+
 		clip_area_update(&pipe_clip, &damaged_area, &crtc_state->pipe_src);
 	}
 

drivers/gpu/drm/i915/display/intel_quirks.c

···
 #include "intel_display_types.h"
 #include "intel_quirks.h"
 
+static void intel_set_quirk(struct drm_i915_private *i915, enum intel_quirk_id quirk)
+{
+	i915->display.quirks.mask |= BIT(quirk);
+}
+
 /*
  * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
  */
 static void quirk_ssc_force_disable(struct drm_i915_private *i915)
 {
-	i915->quirks |= QUIRK_LVDS_SSC_DISABLE;
+	intel_set_quirk(i915, QUIRK_LVDS_SSC_DISABLE);
 	drm_info(&i915->drm, "applying lvds SSC disable quirk\n");
 }
 
···
  */
 static void quirk_invert_brightness(struct drm_i915_private *i915)
 {
-	i915->quirks |= QUIRK_INVERT_BRIGHTNESS;
+	intel_set_quirk(i915, QUIRK_INVERT_BRIGHTNESS);
 	drm_info(&i915->drm, "applying inverted panel brightness quirk\n");
 }
 
 /* Some VBT's incorrectly indicate no backlight is present */
 static void quirk_backlight_present(struct drm_i915_private *i915)
 {
-	i915->quirks |= QUIRK_BACKLIGHT_PRESENT;
+	intel_set_quirk(i915, QUIRK_BACKLIGHT_PRESENT);
 	drm_info(&i915->drm, "applying backlight present quirk\n");
 }
 
···
  */
 static void quirk_increase_t12_delay(struct drm_i915_private *i915)
 {
-	i915->quirks |= QUIRK_INCREASE_T12_DELAY;
+	intel_set_quirk(i915, QUIRK_INCREASE_T12_DELAY);
 	drm_info(&i915->drm, "Applying T12 delay quirk\n");
 }
 
···
  */
 static void quirk_increase_ddi_disabled_time(struct drm_i915_private *i915)
 {
-	i915->quirks |= QUIRK_INCREASE_DDI_DISABLED_TIME;
+	intel_set_quirk(i915, QUIRK_INCREASE_DDI_DISABLED_TIME);
 	drm_info(&i915->drm, "Applying Increase DDI Disabled quirk\n");
 }
 
 static void quirk_no_pps_backlight_power_hook(struct drm_i915_private *i915)
 {
-	i915->quirks |= QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK;
+	intel_set_quirk(i915, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK);
 	drm_info(&i915->drm, "Applying no pps backlight power quirk\n");
 }
 
···
 		if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
 			intel_dmi_quirks[i].hook(i915);
 	}
+}
+
+bool intel_has_quirk(struct drm_i915_private *i915, enum intel_quirk_id quirk)
+{
+	return i915->display.quirks.mask & BIT(quirk);
 }

drivers/gpu/drm/i915/display/intel_quirks.h

···
 #ifndef __INTEL_QUIRKS_H__
 #define __INTEL_QUIRKS_H__
 
+#include <linux/types.h>
+
 struct drm_i915_private;
 
-void intel_init_quirks(struct drm_i915_private *dev_priv);
+enum intel_quirk_id {
+	QUIRK_BACKLIGHT_PRESENT,
+	QUIRK_INCREASE_DDI_DISABLED_TIME,
+	QUIRK_INCREASE_T12_DELAY,
+	QUIRK_INVERT_BRIGHTNESS,
+	QUIRK_LVDS_SSC_DISABLE,
+	QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK,
+};
+
+void intel_init_quirks(struct drm_i915_private *i915);
+bool intel_has_quirk(struct drm_i915_private *i915, enum intel_quirk_id quirk);
 
 #endif /* __INTEL_QUIRKS_H__ */

drivers/gpu/drm/i915/display/intel_sdvo.c

···
 
 	return drm_get_edid(connector,
 			    intel_gmbus_get_adapter(dev_priv,
-						    dev_priv->vbt.crt_ddc_pin));
+						    dev_priv->display.vbt.crt_ddc_pin));
 }
 
 static enum drm_connector_status
···
 	struct sdvo_device_mapping *mapping;
 
 	if (sdvo->port == PORT_B)
-		mapping = &dev_priv->vbt.sdvo_mappings[0];
+		mapping = &dev_priv->display.vbt.sdvo_mappings[0];
 	else
-		mapping = &dev_priv->vbt.sdvo_mappings[1];
+		mapping = &dev_priv->display.vbt.sdvo_mappings[1];
 
 	if (mapping->initialized)
 		sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
···
 	u8 pin;
 
 	if (sdvo->port == PORT_B)
-		mapping = &dev_priv->vbt.sdvo_mappings[0];
+		mapping = &dev_priv->display.vbt.sdvo_mappings[0];
 	else
-		mapping = &dev_priv->vbt.sdvo_mappings[1];
+		mapping = &dev_priv->display.vbt.sdvo_mappings[1];
 
 	if (mapping->initialized &&
 	    intel_gmbus_is_valid_pin(dev_priv, mapping->i2c_pin))
···
 	struct sdvo_device_mapping *my_mapping, *other_mapping;
 
 	if (sdvo->port == PORT_B) {
-		my_mapping = &dev_priv->vbt.sdvo_mappings[0];
-		other_mapping = &dev_priv->vbt.sdvo_mappings[1];
+		my_mapping = &dev_priv->display.vbt.sdvo_mappings[0];
+		other_mapping = &dev_priv->display.vbt.sdvo_mappings[1];
 	} else {
-		my_mapping = &dev_priv->vbt.sdvo_mappings[1];
-		other_mapping = &dev_priv->vbt.sdvo_mappings[0];
+		my_mapping = &dev_priv->display.vbt.sdvo_mappings[1];
+		other_mapping = &dev_priv->display.vbt.sdvo_mappings[0];
 	}
 
 	/* If the BIOS described our SDVO device, take advantage of it. */

drivers/gpu/drm/i915/display/intel_tv.c

···
 #include "intel_crtc.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_dpll.h"
 #include "intel_hotplug.h"
 #include "intel_tv.h"
 
···
 
 static void
 intel_tv_mode_to_mode(struct drm_display_mode *mode,
-		      const struct tv_mode *tv_mode)
+		      const struct tv_mode *tv_mode,
+		      int clock)
 {
-	mode->clock = tv_mode->clock /
-		(tv_mode->oversample >> !tv_mode->progressive);
+	mode->clock = clock / (tv_mode->oversample >> !tv_mode->progressive);
 
 	/*
 	 * tv_mode horizontal timings:
···
 	xsize = tmp >> 16;
 	ysize = tmp & 0xffff;
 
-	intel_tv_mode_to_mode(&mode, &tv_mode);
+	intel_tv_mode_to_mode(&mode, &tv_mode, pipe_config->port_clock);
 
 	drm_dbg_kms(&dev_priv->drm, "TV mode: " DRM_MODE_FMT "\n",
 		    DRM_MODE_ARG(&mode));
···
 			struct intel_crtc_state *pipe_config,
 			struct drm_connector_state *conn_state)
 {
+	struct intel_atomic_state *state =
+		to_intel_atomic_state(pipe_config->uapi.state);
+	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_tv_connector_state *tv_conn_state =
 		to_intel_tv_connector_state(conn_state);
···
 		&pipe_config->hw.adjusted_mode;
 	int hdisplay = adjusted_mode->crtc_hdisplay;
 	int vdisplay = adjusted_mode->crtc_vdisplay;
+	int ret;
 
 	if (!tv_mode)
 		return -EINVAL;
···
 
 	pipe_config->port_clock = tv_mode->clock;
 
-	intel_tv_mode_to_mode(adjusted_mode, tv_mode);
+	ret = intel_dpll_crtc_compute_clock(state, crtc);
+	if (ret)
+		return ret;
+
+	pipe_config->clock_set = true;
+
+	intel_tv_mode_to_mode(adjusted_mode, tv_mode, pipe_config->port_clock);
 	drm_mode_set_crtcinfo(adjusted_mode, 0);
 
 	if (intel_tv_source_too_wide(dev_priv, hdisplay) ||
···
 		 * about the actual timings of the mode. We
 		 * do ignore the margins though.
 		 */
-		intel_tv_mode_to_mode(mode, tv_mode);
+		intel_tv_mode_to_mode(mode, tv_mode, tv_mode->clock);
 		if (count == 0) {
 			drm_dbg_kms(&dev_priv->drm, "TV mode: " DRM_MODE_FMT "\n",
 				    DRM_MODE_ARG(mode));

drivers/gpu/drm/i915/display/intel_vbt_defs.h

···
 } __packed;
 
 /*
+ * BDB version number dependencies are documented as:
+ *
+ * <start>+
+ *    indicates the field was introduced in version <start>
+ *    and is still valid
+ *
+ * <start>-<end>
+ *    indicates the field was introduced in version <start>
+ *    and obsoleted in version <end>+1.
+ *
+ * ??? indicates the specific version number is unknown
+ */
+
+/*
  * There are several types of BIOS data blocks (BDBs), each block has
  * an ID and size in the first 3 bytes (ID in first, size in next 2).
  * Known types are listed below.
···
         /* bits 3 */
 	u8 disable_smooth_vision:1;
 	u8 single_dvi:1;
-	u8 rotate_180:1;					/* 181 */
+	u8 rotate_180:1;					/* 181+ */
 	u8 fdi_rx_polarity_inverted:1;
-	u8 vbios_extended_mode:1;				/* 160 */
-	u8 copy_ilfp_dtd_to_sdvo_lvds_dtd:1;			/* 160 */
-	u8 panel_best_fit_timing:1;				/* 160 */
-	u8 ignore_strap_state:1;				/* 160 */
+	u8 vbios_extended_mode:1;				/* 160+ */
+	u8 copy_ilfp_dtd_to_sdvo_lvds_dtd:1;			/* 160+ */
+	u8 panel_best_fit_timing:1;				/* 160+ */
+	u8 ignore_strap_state:1;				/* 160+ */
 
         /* bits 4 */
 	u8 legacy_monitor_detect;
···
 	u8 rsvd11:2; /* finish byte */
 
 	/* bits 6 */
-	u8 tc_hpd_retry_timeout:7; /* 242 */
+	u8 tc_hpd_retry_timeout:7;				/* 242+ */
 	u8 rsvd12:1;
 
 	/* bits 7 */
-	u8 afc_startup_config:2;/* 249 */
+	u8 afc_startup_config:2;				/* 249+ */
 	u8 rsvd13:6;
 } __packed;
 
···
 #define GPIO_PIN_ADD_DDC_I2C	0x06 /* "ADDCARD DDC/I2C GPIO pins" */
 
 /* Device handle */
+#define DEVICE_HANDLE_CRT	0x0001
+#define DEVICE_HANDLE_EFP1	0x0004
+#define DEVICE_HANDLE_EFP2	0x0040
+#define DEVICE_HANDLE_EFP3	0x0020
+#define DEVICE_HANDLE_EFP4	0x0010 /* 194+ */
+#define DEVICE_HANDLE_EFP5	0x0002 /* 215+ */
+#define DEVICE_HANDLE_EFP6	0x0001 /* 217+ */
+#define DEVICE_HANDLE_EFP7	0x0100 /* 217+ */
+#define DEVICE_HANDLE_EFP8	0x0200 /* 217+ */
 #define DEVICE_HANDLE_LFP1	0x0008
 #define DEVICE_HANDLE_LFP2	0x0080
 
···
 #define DVO_PORT_DPC		8
 #define DVO_PORT_DPD		9
 #define DVO_PORT_DPA		10
-#define DVO_PORT_DPE		11				/* 193 */
-#define DVO_PORT_HDMIE		12				/* 193 */
+#define DVO_PORT_DPE		11				/* 193+ */
+#define DVO_PORT_HDMIE		12				/* 193+ */
 #define DVO_PORT_DPF		13				/* N/A */
 #define DVO_PORT_HDMIF		14				/* N/A */
-#define DVO_PORT_DPG		15				/* 217 */
-#define DVO_PORT_HDMIG		16				/* 217 */
-#define DVO_PORT_DPH		17				/* 217 */
-#define DVO_PORT_HDMIH		18				/* 217 */
-#define DVO_PORT_DPI		19				/* 217 */
-#define DVO_PORT_HDMII		20				/* 217 */
-#define DVO_PORT_MIPIA		21				/* 171 */
-#define DVO_PORT_MIPIB		22				/* 171 */
-#define DVO_PORT_MIPIC		23				/* 171 */
-#define DVO_PORT_MIPID		24				/* 171 */
+#define DVO_PORT_DPG		15				/* 217+ */
+#define DVO_PORT_HDMIG		16				/* 217+ */
+#define DVO_PORT_DPH		17				/* 217+ */
+#define DVO_PORT_HDMIH		18				/* 217+ */
+#define DVO_PORT_DPI		19				/* 217+ */
+#define DVO_PORT_HDMII		20				/* 217+ */
+#define DVO_PORT_MIPIA		21				/* 171+ */
+#define DVO_PORT_MIPIB		22				/* 171+ */
+#define DVO_PORT_MIPIC		23				/* 171+ */
+#define DVO_PORT_MIPID		24				/* 171+ */
 
-#define HDMI_MAX_DATA_RATE_PLATFORM	0			/* 204 */
-#define HDMI_MAX_DATA_RATE_297		1			/* 204 */
-#define HDMI_MAX_DATA_RATE_165		2			/* 204 */
-#define HDMI_MAX_DATA_RATE_594		3			/* 249 */
-#define HDMI_MAX_DATA_RATE_340		4			/* 249 */
-#define HDMI_MAX_DATA_RATE_300		5			/* 249 */
+#define HDMI_MAX_DATA_RATE_PLATFORM	0			/* 204+ */
+#define HDMI_MAX_DATA_RATE_297		1			/* 204+ */
+#define HDMI_MAX_DATA_RATE_165		2			/* 204+ */
+#define HDMI_MAX_DATA_RATE_594		3			/* 249+ */
+#define HDMI_MAX_DATA_RATE_340		4			/* 249+ */
+#define HDMI_MAX_DATA_RATE_300		5			/* 249+ */
 
 #define LEGACY_CHILD_DEVICE_CONFIG_SIZE		33
 
···
  * basically any of the fields to ensure the correct interpretation for the BDB
  * version in question.
  *
- * When we copy the child device configs to dev_priv->vbt.child_dev, we reserve
- * space for the full structure below, and initialize the tail not actually
- * present in VBT to zeros. Accessing those fields is fine, as long as the
- * default zero is taken into account, again according to the BDB version.
+ * When we copy the child device configs to dev_priv->display.vbt.child_dev, we
+ * reserve space for the full structure below, and initialize the tail not
+ * actually present in VBT to zeros. Accessing those fields is fine, as long as
+ * the default zero is taken into account, again according to the BDB version.
  *
  * BDB versions 155 and below are considered legacy, and version 155 seems to be
  * a baseline for some of the VBT documentation. When adding new fields, please
···
 		u8  device_id[10]; /* ascii string */
 		struct {
 			u8 i2c_speed;
-			u8 dp_onboard_redriver;			/* 158 */
-			u8 dp_ondock_redriver;			/* 158 */
-			u8 hdmi_level_shifter_value:5;		/* 169 */
-			u8 hdmi_max_data_rate:3;		/* 204 */
-			u16 dtd_buf_ptr;			/* 161 */
-			u8 edidless_efp:1;			/* 161 */
-			u8 compression_enable:1;		/* 198 */
-			u8 compression_method_cps:1;		/* 198 */
-			u8 ganged_edp:1;			/* 202 */
-			u8 reserved0:4;
-			u8 compression_structure_index:4;	/* 198 */
-			u8 reserved1:4;
-			u8 slave_port;				/* 202 */
-			u8 reserved2;
+			u8 dp_onboard_redriver_preemph:3;	/* 158+ */
+			u8 dp_onboard_redriver_vswing:3;	/* 158+ */
+			u8 dp_onboard_redriver_present:1;	/* 158+ */
+			u8 reserved0:1;
+			u8 dp_ondock_redriver_preemph:3;	/* 158+ */
+			u8 dp_ondock_redriver_vswing:3;		/* 158+ */
+			u8 dp_ondock_redriver_present:1;	/* 158+ */
+			u8 reserved1:1;
+			u8 hdmi_level_shifter_value:5;		/* 158+ */
+			u8 hdmi_max_data_rate:3;		/* 204+ */
+			u16 dtd_buf_ptr;			/* 161+ */
+			u8 edidless_efp:1;			/* 161+ */
+			u8 compression_enable:1;		/* 198+ */
+			u8 compression_method_cps:1;		/* 198+ */
+			u8 ganged_edp:1;			/* 202+ */
+			u8 lttpr_non_transparent:1;		/* 235+ */
+			u8 disable_compression_for_ext_disp:1;	/* 251+ */
+			u8 reserved2:2;
+			u8 compression_structure_index:4;	/* 198+ */
+			u8 reserved3:4;
+			u8 hdmi_max_frl_rate:4;			/* 237+ */
+			u8 hdmi_max_frl_rate_valid:1;		/* 237+ */
+			u8 reserved4:3;				/* 237+ */
+			u8 reserved5;
 		} __packed;
 	} __packed;
 
···
 			u8 ddc2_pin;
 		} __packed;
 		struct {
-			u8 efp_routed:1;			/* 158 */
-			u8 lane_reversal:1;			/* 184 */
-			u8 lspcon:1;				/* 192 */
-			u8 iboost:1;				/* 196 */
-			u8 hpd_invert:1;			/* 196 */
-			u8 use_vbt_vswing:1;			/* 218 */
-			u8 flag_reserved:2;
-			u8 hdmi_support:1;			/* 158 */
-			u8 dp_support:1;			/* 158 */
-			u8 tmds_support:1;			/* 158 */
+			u8 efp_routed:1;			/* 158+ */
+			u8 lane_reversal:1;			/* 184+ */
+			u8 lspcon:1;				/* 192+ */
+			u8 iboost:1;				/* 196+ */
+			u8 hpd_invert:1;			/* 196+ */
+			u8 use_vbt_vswing:1;			/* 218+ */
+			u8 dp_max_lane_count:2;			/* 244+ */
+			u8 hdmi_support:1;			/* 158+ */
+			u8 dp_support:1;			/* 158+ */
+			u8 tmds_support:1;			/* 158+ */
 			u8 support_reserved:5;
 			u8 aux_channel;
 			u8 dongle_detect;
···
 	} __packed;
 
 	u8 pipe_cap:2;
-	u8 sdvo_stall:1;					/* 158 */
+	u8 sdvo_stall:1;					/* 158+ */
 	u8 hpd_status:2;
 	u8 integrated_encoder:1;
 	u8 capabilities_reserved:2;
···
 
 	union {
 		u8 dvo2_wiring;
-		u8 mipi_bridge_type;				/* 171 */
+		u8 mipi_bridge_type;				/* 171+ */
 	} __packed;
 
 	u16 extended_type;
 	u8 dvo_function;
-	u8 dp_usb_type_c:1;					/* 195 */
-	u8 tbt:1;						/* 209 */
-	u8 flags2_reserved:2;					/* 195 */
-	u8 dp_port_trace_length:4;				/* 209 */
-	u8 dp_gpio_index;					/* 195 */
-	u16 dp_gpio_pin_num;					/* 195 */
-	u8 dp_iboost_level:4;					/* 196 */
-	u8 hdmi_iboost_level:4;					/* 196 */
-	u8 dp_max_link_rate:3;					/* 216/230 GLK+ */
-	u8 dp_max_link_rate_reserved:5;				/* 216/230 */
+	u8 dp_usb_type_c:1;					/* 195+ */
+	u8 tbt:1;						/* 209+ */
+	u8 flags2_reserved:2;					/* 195+ */
+	u8 dp_port_trace_length:4;				/* 209+ */
+	u8 dp_gpio_index;					/* 195+ */
+	u16 dp_gpio_pin_num;					/* 195+ */
+	u8 dp_iboost_level:4;					/* 196+ */
+	u8 hdmi_iboost_level:4;					/* 196+ */
+	u8 dp_max_link_rate:3;					/* 216+ */
+	u8 dp_max_link_rate_reserved:5;				/* 216+ */
 } __packed;
 
 struct bdb_general_definitions {
···
 	u8 crt_ddc_gmbus_pin;
 
 	/* DPMS bits */
-	u8 dpms_acpi:1;
+	u8 dpms_non_acpi:1;
 	u8 skip_boot_crt_detect:1;
 	u8 dpms_aim:1;
 	u8 rsvd1:5; /* finish byte */
···
 
 struct psr_table {
 	/* Feature bits */
-	u8 full_link:1;
-	u8 require_aux_to_wakeup:1;
+	u8 full_link:1;						/* 165+ */
+	u8 require_aux_to_wakeup:1;				/* 165+ */
 	u8 feature_bits_rsvd:6;
 
 	/* Wait times */
-	u8 idle_frames:4;
-	u8 lines_to_wait:3;
+	u8 idle_frames:4;					/* 165+ */
+	u8 lines_to_wait:3;					/* 165+ */
 	u8 wait_times_rsvd:1;
 
 	/* TP wake up time in multiple of 100 */
-	u16 tp1_wakeup_time;
-	u16 tp2_tp3_wakeup_time;
+	u16 tp1_wakeup_time;					/* 165+ */
+	u16 tp2_tp3_wakeup_time;				/* 165+ */
 } __packed;
 
 struct bdb_psr {
 	struct psr_table psr_table[16];
 
 	/* PSR2 TP2/TP3 wakeup time for 16 panels */
-	u32 psr2_tp2_tp3_wakeup_time;
+	u32 psr2_tp2_tp3_wakeup_time;				/* 226+ */
 } __packed;
 
 /*
···
 #define BDB_DRIVER_FEATURE_INT_SDVO_LVDS	3
 
 struct bdb_driver_features {
+	/* Driver bits */
 	u8 boot_dev_algorithm:1;
-	u8 block_display_switch:1;
-	u8 allow_display_switch:1;
+	u8 allow_display_switch_dvd:1;
+	u8 allow_display_switch_dos:1;
 	u8 hotplug_dvo:1;
 	u8 dual_view_zoom:1;
 	u8 int15h_hook:1;
···
 	u8 boot_mode_bpp;
 	u8 boot_mode_refresh;
 
+	/* Extended Driver Bits 1 */
 	u16 enable_lfp_primary:1;
 	u16 selective_mode_pruning:1;
 	u16 dual_frequency:1;
···
 	u16 tv_hotplug:1;
 	u16 hdmi_config:2;
 
-	u8 static_display:1;
-	u8 reserved2:7;
+	/* Driver Flags 1 */
+	u8 static_display:1;					/* 163+ */
+	u8 embedded_platform:1;					/* 163+ */
+	u8 display_subsystem_enable:1;				/* 163+ */
+	u8 reserved0:5;
+
 	u16 legacy_crt_max_x;
 	u16 legacy_crt_max_y;
 	u8 legacy_crt_max_refresh;
 
-	u8 hdmi_termination;
-	u8 custom_vbt_version;
-	/* Driver features data block */
-	u16 rmpm_enabled:1;
-	u16 s2ddt_enabled:1;
-	u16 dpst_enabled:1;
-	u16 bltclt_enabled:1;
-	u16 adb_enabled:1;
-	u16 drrs_enabled:1;
-	u16 grs_enabled:1;
-	u16 gpmt_enabled:1;
-	u16 tbt_enabled:1;
-	u16 psr_enabled:1;
-	u16 ips_enabled:1;
-	u16 reserved3:1;
-	u16 dmrrs_enabled:1;
-	u16 reserved4:2;
+	/* Extended Driver Bits 2 */
+	u8 hdmi_termination:1;
+	u8 cea861d_hdmi_support:1;
+	u8 self_refresh_enable:1;
+	u8 reserved1:5;
+
+	u8 custom_vbt_version;					/* 155+ */
+
+	/* Driver Feature Flags */
+	u16 rmpm_enabled:1;					/* 165+ */
+	u16 s2ddt_enabled:1;					/* 165+ */
+	u16 dpst_enabled:1;					/* 165-227 */
+	u16 bltclt_enabled:1;					/* 165+ */
+	u16 adb_enabled:1;					/* 165-227 */
+	u16 drrs_enabled:1;					/* 165-227 */
+	u16 grs_enabled:1;					/* 165+ */
+	u16 gpmt_enabled:1;					/* 165+ */
+	u16 tbt_enabled:1;					/* 165+ */
+	u16 psr_enabled:1;					/* 165-227 */
+	u16 ips_enabled:1;					/* 165+ */
+	u16 dpfs_enabled:1;					/* 165+ */
+	u16 dmrrs_enabled:1;					/* 174-227 */
+	u16 adt_enabled:1;					/* ???-228 */
+	u16 hpd_wake:1;						/* 201-240 */
 	u16 pc_feature_valid:1;
 } __packed;
 
···
 
 
 struct edp_fast_link_params {
-	u8 rate:4;
+	u8 rate:4;						/* ???-223 */
 	u8 lanes:4;
 	u8 preemphasis:4;
 	u8 vswing:4;
···
 	u32 sdrrs_msa_timing_delay;
 
 	/* ith bit indicates enabled/disabled for (i+1)th panel */
-	u16 edp_s3d_feature;					/* 162 */
-	u16 edp_t3_optimization;				/* 165 */
-	u64 edp_vswing_preemph;					/* 173 */
-	u16 fast_link_training;					/* 182 */
-	u16 dpcd_600h_write_required;				/* 185 */
-	struct edp_pwm_delays pwm_delays[16];			/* 186 */
-	u16 full_link_params_provided;				/* 199 */
-	struct edp_full_link_params full_link_params[16];	/* 199 */
-	u16 apical_enable;					/* 203 */
-	struct edp_apical_params apical_params[16];		/* 203 */
-	u16 edp_fast_link_training_rate[16];			/* 224 */
-	u16 edp_max_port_link_rate[16];				/* 244 */
+	u16 edp_s3d_feature;					/* 162+ */
+	u16 edp_t3_optimization;				/* 165+ */
+	u64 edp_vswing_preemph;					/* 173+ */
+	u16 fast_link_training;					/* 182+ */
+	u16 dpcd_600h_write_required;				/* 185+ */
+	struct edp_pwm_delays pwm_delays[16];			/* 186+ */
+	u16 full_link_params_provided;				/* 199+ */
+	struct edp_full_link_params full_link_params[16];	/* 199+ */
+	u16 apical_enable;					/* 203+ */
+	struct edp_apical_params apical_params[16];		/* 203+ */
+	u16 edp_fast_link_training_rate[16];			/* 224+ */
+	u16 edp_max_port_link_rate[16];				/* 244+ */
 } __packed;
 
 /*
···
 
 struct bdb_lvds_options {
 	u8 panel_type;
-	u8 panel_type2;						/* 212 */
+	u8 panel_type2;						/* 212+ */
 	/* LVDS capabilities, stored in a dword */
 	u8 pfit_mode:2;
 	u8 pfit_text_mode_enhanced:1;
 	u8 pfit_gfx_mode_enhanced:1;
 	u8 pfit_ratio_auto:1;
 	u8 pixel_dither:1;
-	u8 lvds_edid:1;
+	u8 lvds_edid:1;						/* ???-240 */
 	u8 rsvd2:1;
 	u8 rsvd4;
 	/* LVDS Panel channel bits stored here */
···
 	/* LVDS panel type bits stored here */
 	u32 dps_panel_type_bits;
 	/* LVDS backlight control type bits stored here */
-	u32 blt_control_type_bits;
+	u32 blt_control_type_bits;				/* ???-240 */
 
-	u16 lcdvcc_s0_enable;					/* 200 */
-	u32 rotation;						/* 228 */
-	u32 position;						/* 240 */
+	u16 lcdvcc_s0_enable;					/* 200+ */
+	u32 rotation;						/* 228+ */
+	u32 position;						/* 240+ */
 } __packed;
 
 /*
···
 struct bdb_lvds_lfp_data_ptrs {
 	u8 lvds_entries;
 	struct lvds_lfp_data_ptr ptr[16];
-	struct lvds_lfp_data_ptr_table panel_name; /* 156-163? */
+	struct lvds_lfp_data_ptr_table panel_name;		/* (156-163?)+ */
 } __packed;
 
 /*
···
 } __packed;
 
 struct lvds_lfp_black_border {
-	u8 top; /* 227 */
-	u8 bottom; /* 227 */
-	u8 left; /* 238 */
-	u8 right; /* 238 */
+	u8 top;		/* 227+ */
+	u8 bottom;	/* 227+ */
+	u8 left;	/* 238+ */
+	u8 right;	/* 238+ */
 } __packed;
 
 struct bdb_lvds_lfp_data_tail {
-	struct lvds_lfp_panel_name panel_name[16]; /* 156-163? */
-	u16 scaling_enable; /* 187 */
-	u8 seamless_drrs_min_refresh_rate[16]; /* 188 */
-	u8 pixel_overlap_count[16]; /* 208 */
-	struct lvds_lfp_black_border black_border[16]; /* 227 */
-	u16 dual_lfp_port_sync_enable; /* 231 */
-	u16 gpu_dithering_for_banding_artifacts; /* 245 */
+	struct lvds_lfp_panel_name panel_name[16];		/* (156-163?)+ */
+	u16 scaling_enable;					/* 187+ */
+	u8 seamless_drrs_min_refresh_rate[16];			/* 188+ */
+	u8 pixel_overlap_count[16];				/* 208+ */
+	struct lvds_lfp_black_border black_border[16];		/* 227+ */
+	u16 dual_lfp_port_sync_enable;				/* 231+ */
+	u16 gpu_dithering_for_banding_artifacts;		/* 245+ */
 } __packed;
 
 /*
···
 	u8 active_low_pwm:1;
 	u8 obsolete1:5;
 	u16 pwm_freq_hz;
-	u8 min_brightness; /* Obsolete from 234+ */
+	u8 min_brightness;					/* ???-233 */
 	u8 obsolete2;
 	u8 obsolete3;
 } __packed;
···
 struct bdb_lfp_backlight_data {
 	u8 entry_size;
 	struct lfp_backlight_data_entry data[16];
-	u8 level[16]; /* Obsolete from 234+ */
+	u8 level[16];							/* ???-233 */
 	struct lfp_backlight_control_method backlight_control[16];
 	struct lfp_brightness_level brightness_level[16];		/* 234+ */
 	struct lfp_brightness_level brightness_min_level[16];		/* 234+ */
···
 	u8 reserved1:1;
 	u8 power_conservation_pref:3;
 	u8 reserved2:1;
-	u8 lace_enabled_status:1;
-	u8 lace_support:1;
+	u8 lace_enabled_status:1;					/* 210+ */
+	u8 lace_support:1;						/* 210+ */
 	u8 als_enable:1;
 } __packed;
 
···
 } __packed;
 
 struct bdb_lfp_power {
-	struct lfp_power_features features;
+	struct lfp_power_features features;				/* ???-227 */
 	struct als_data_entry als[5];
-	u8 lace_aggressiveness_profile:3;
+	u8 lace_aggressiveness_profile:3;				/* 210-227 */
 	u8 reserved1:5;
-	u16 dpst;
-	u16 psr;
-	u16 drrs;
-	u16 lace_support;
-	u16 adt;
-	u16 dmrrs;
-	u16 adb;
-	u16 lace_enabled_status;
-	struct aggressiveness_profile_entry aggressiveness[16];
-	u16 hobl; /* 232+ */
-	u16 vrr_feature_enabled; /* 233+ */
-	u16 elp; /* 247+ */
-	u16 opst; /* 247+ */
-	struct aggressiveness_profile2_entry aggressiveness2[16]; /* 247+ */
+	u16 dpst;							/* 228+ */
+	u16 psr;							/* 228+ */
+	u16 drrs;							/* 228+ */
+	u16 lace_support;						/* 228+ */
+	u16 adt;							/* 228+ */
+	u16 dmrrs;							/* 228+ */
+	u16 adb;							/* 228+ */
+	u16 lace_enabled_status;					/* 228+ */
+	struct aggressiveness_profile_entry aggressiveness[16];		/* 228+ */
+	u16 hobl;							/* 232+ */
+	u16 vrr_feature_enabled;					/* 233+ */
+	u16 elp;							/* 247+ */
+	u16 opst;							/* 247+ */
+	struct aggressiveness_profile2_entry aggressiveness2[16];	/* 247+ */
 } __packed;
 
 /*
···
 #define MAX_MIPI_CONFIGURATIONS	6
 
 struct bdb_mipi_config {
-	struct mipi_config config[MAX_MIPI_CONFIGURATIONS]; /* 175 */
-	struct mipi_pps_data pps[MAX_MIPI_CONFIGURATIONS]; /* 177 */
-	struct edp_pwm_delays pwm_delays[MAX_MIPI_CONFIGURATIONS]; /* 186 */
-	u8 pmic_i2c_bus_number[MAX_MIPI_CONFIGURATIONS]; /* 190 */
+	struct mipi_config config[MAX_MIPI_CONFIGURATIONS];		/* 175+ */
+	struct mipi_pps_data pps[MAX_MIPI_CONFIGURATIONS];		/* 177+ */
+	struct edp_pwm_delays pwm_delays[MAX_MIPI_CONFIGURATIONS];	/* 186+ */
+	u8 pmic_i2c_bus_number[MAX_MIPI_CONFIGURATIONS];		/* 190+ */
 } __packed;
 
 /*

drivers/gpu/drm/i915/display/intel_vdsc.c

···
 	u8 i = 0;
 
 	vdsc_cfg->pic_width = pipe_config->hw.adjusted_mode.crtc_hdisplay;
-	vdsc_cfg->pic_height = pipe_config->hw.adjusted_mode.crtc_vdisplay;
 	vdsc_cfg->slice_width = DIV_ROUND_UP(vdsc_cfg->pic_width,
 					     pipe_config->dsc.slice_count);
 

drivers/gpu/drm/i915/display/skl_universal_plane.c

···
 #include "intel_display_types.h"
 #include "intel_fb.h"
 #include "intel_fbc.h"
-#include "intel_pm.h"
 #include "intel_psr.h"
 #include "intel_sprite.h"
 #include "skl_scaler.h"
 #include "skl_universal_plane.h"
+#include "skl_watermark.h"
 #include "pxp/intel_pxp.h"
 
 static const u32 skl_plane_formats[] = {
···
 	enum intel_fbc_id fbc_id = skl_fbc_id_for_pipe(pipe);
 
 	if (skl_plane_has_fbc(dev_priv, fbc_id, plane_id))
-		return dev_priv->fbc[fbc_id];
+		return dev_priv->display.fbc[fbc_id];
 	else
 		return NULL;
 }

drivers/gpu/drm/i915/display/skl_watermark.c

···
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#include <drm/drm_blend.h>
+
+#include "intel_atomic.h"
+#include "intel_atomic_plane.h"
+#include "intel_bw.h"
+#include "intel_de.h"
+#include "intel_display.h"
+#include "intel_display_power.h"
+#include "intel_display_types.h"
+#include "intel_fb.h"
+#include "skl_watermark.h"
+
+#include "i915_drv.h"
+#include "i915_fixed.h"
+#include "i915_reg.h"
+#include "intel_pcode.h"
+#include "intel_pm.h"
+
+static void skl_sagv_disable(struct drm_i915_private *i915);
+
+/* Stores plane specific WM parameters */
+struct skl_wm_params {
+	bool x_tiled, y_tiled;
+	bool rc_surface;
+	bool is_planar;
+	u32 width;
+	u8 cpp;
+	u32 plane_pixel_rate;
+	u32 y_min_scanlines;
+	u32 plane_bytes_per_line;
+	uint_fixed_16_16_t plane_blocks_per_line;
+	uint_fixed_16_16_t y_tile_minimum;
+	u32 linetime_us;
+	u32 dbuf_block_size;
+};
+
+u8 intel_enabled_dbuf_slices_mask(struct drm_i915_private *i915)
+{
+	u8 enabled_slices = 0;
+	enum dbuf_slice slice;
+
+	for_each_dbuf_slice(i915, slice) {
+		if (intel_uncore_read(&i915->uncore,
+				      DBUF_CTL_S(slice)) & DBUF_POWER_STATE)
+			enabled_slices |= BIT(slice);
+	}
+
+	return enabled_slices;
+}
+
+/*
+ * FIXME: We still don't have the proper code detect if we need to apply the WA,
+ * so assume we'll always need it in order to avoid underruns.
+ */
+static bool skl_needs_memory_bw_wa(struct drm_i915_private *i915)
+{
+	return DISPLAY_VER(i915) == 9;
+}
+
+static bool
+intel_has_sagv(struct drm_i915_private *i915)
+{
+	return DISPLAY_VER(i915) >= 9 && !IS_LP(i915) &&
+		i915->display.sagv.status != I915_SAGV_NOT_CONTROLLED;
+}
+
+static u32
+intel_sagv_block_time(struct drm_i915_private *i915)
+{
+	if (DISPLAY_VER(i915) >= 14) {
+		u32 val;
+
+		val = intel_uncore_read(&i915->uncore, MTL_LATENCY_SAGV);
+
+		return REG_FIELD_GET(MTL_LATENCY_QCLK_SAGV, val);
+	} else if (DISPLAY_VER(i915) >= 12) {
+		u32 val = 0;
+		int ret;
+
+		ret = snb_pcode_read(&i915->uncore,
+				     GEN12_PCODE_READ_SAGV_BLOCK_TIME_US,
+				     &val, NULL);
+		if (ret) {
+			drm_dbg_kms(&i915->drm, "Couldn't read SAGV block time!\n");
+			return 0;
+		}
+
+		return val;
+	} else if (DISPLAY_VER(i915) == 11) {
+		return 10;
+	} else if (DISPLAY_VER(i915) == 9 && !IS_LP(i915)) {
+		return 30;
+	} else {
+		return 0;
+	}
+}
+
+static void intel_sagv_init(struct drm_i915_private *i915)
+{
+	if (!intel_has_sagv(i915))
+		i915->display.sagv.status = I915_SAGV_NOT_CONTROLLED;
+
+	/*
+	 * Probe to see if we have working SAGV control.
+	 * For icl+ this was already determined by intel_bw_init_hw().
+	 */
+	if (DISPLAY_VER(i915) < 11)
+		skl_sagv_disable(i915);
+
+	drm_WARN_ON(&i915->drm, i915->display.sagv.status == I915_SAGV_UNKNOWN);
+
+	i915->display.sagv.block_time_us = intel_sagv_block_time(i915);
+
+	drm_dbg_kms(&i915->drm, "SAGV supported: %s, original SAGV block time: %u us\n",
+		    str_yes_no(intel_has_sagv(i915)), i915->display.sagv.block_time_us);
+
+	/* avoid overflow when adding with wm0 latency/etc. */
+	if (drm_WARN(&i915->drm, i915->display.sagv.block_time_us > U16_MAX,
+		     "Excessive SAGV block time %u, ignoring\n",
+		     i915->display.sagv.block_time_us))
+		i915->display.sagv.block_time_us = 0;
+
+	if (!intel_has_sagv(i915))
+		i915->display.sagv.block_time_us = 0;
+}
+
+/*
+ * SAGV dynamically adjusts the system agent voltage and clock frequencies
+ * depending on power and performance requirements. The display engine access
+ * to system memory is blocked during the adjustment time. Because of the
+ * blocking time, having this enabled can cause full system hangs and/or pipe
+ * underruns if we don't meet all of the following requirements:
+ *
+ *  - <= 1 pipe enabled
+ *  - All planes can enable watermarks for latencies >= SAGV engine block time
+ *  - We're not using an interlaced display configuration
+ */
+static void skl_sagv_enable(struct drm_i915_private *i915)
+{
+	int ret;
+
+	if (!intel_has_sagv(i915))
+		return;
+
+	if (i915->display.sagv.status == I915_SAGV_ENABLED)
+		return;
+
+	drm_dbg_kms(&i915->drm, "Enabling SAGV\n");
+	ret = snb_pcode_write(&i915->uncore, GEN9_PCODE_SAGV_CONTROL,
+			      GEN9_SAGV_ENABLE);
+
+	/* We don't need to wait for SAGV when enabling */
+
+	/*
+	 * Some skl systems, pre-release machines in particular,
+	 * don't actually have SAGV.
+	 */
+	if (IS_SKYLAKE(i915) && ret == -ENXIO) {
+		drm_dbg(&i915->drm, "No SAGV found on system, ignoring\n");
+		i915->display.sagv.status = I915_SAGV_NOT_CONTROLLED;
+		return;
+	} else if (ret < 0) {
+		drm_err(&i915->drm, "Failed to enable SAGV\n");
+		return;
+	}
+
+	i915->display.sagv.status = I915_SAGV_ENABLED;
+}
+
+static void skl_sagv_disable(struct drm_i915_private *i915)
+{
+	int ret;
+
+	if (!intel_has_sagv(i915))
+		return;
+
+	if (i915->display.sagv.status == I915_SAGV_DISABLED)
+		return;
+
+	drm_dbg_kms(&i915->drm, "Disabling SAGV\n");
+	/* bspec says to keep retrying for at least 1 ms */
+	ret = skl_pcode_request(&i915->uncore, GEN9_PCODE_SAGV_CONTROL,
+				GEN9_SAGV_DISABLE,
+				GEN9_SAGV_IS_DISABLED, GEN9_SAGV_IS_DISABLED,
+				1);
+	/*
+	 * Some skl systems, pre-release machines in particular,
+	 * don't actually have SAGV.
+	 */
+	if (IS_SKYLAKE(i915) && ret == -ENXIO) {
+		drm_dbg(&i915->drm, "No SAGV found on system, ignoring\n");
+		i915->display.sagv.status = I915_SAGV_NOT_CONTROLLED;
+		return;
+	} else if (ret < 0) {
+		drm_err(&i915->drm, "Failed to disable SAGV (%d)\n", ret);
+		return;
+	}
+
+	i915->display.sagv.status = I915_SAGV_DISABLED;
+}
+
+static void skl_sagv_pre_plane_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_bw_state *new_bw_state =
+		intel_atomic_get_new_bw_state(state);
+
+	if (!new_bw_state)
+		return;
+
+	if (!intel_can_enable_sagv(i915, new_bw_state))
+		skl_sagv_disable(i915);
+}
+
+static void skl_sagv_post_plane_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_bw_state *new_bw_state =
+		intel_atomic_get_new_bw_state(state);
+
+	if (!new_bw_state)
+		return;
+
+	if (intel_can_enable_sagv(i915, new_bw_state))
+		skl_sagv_enable(i915);
+}
+
+static void icl_sagv_pre_plane_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_bw_state *old_bw_state =
+		intel_atomic_get_old_bw_state(state);
+	const struct intel_bw_state *new_bw_state =
+		intel_atomic_get_new_bw_state(state);
+	u16 old_mask, new_mask;
+
+	if (!new_bw_state)
+		return;
+
+	old_mask = old_bw_state->qgv_points_mask;
+	new_mask = old_bw_state->qgv_points_mask | new_bw_state->qgv_points_mask;
+
+	if (old_mask == new_mask)
+		return;
+
+	WARN_ON(!new_bw_state->base.changed);
+
+	drm_dbg_kms(&i915->drm, "Restricting QGV points: 0x%x -> 0x%x\n",
+		    old_mask, new_mask);
+
+	/*
+	 * Restrict required qgv points before updating the configuration.
+	 * According to BSpec we can't mask and unmask qgv points at the same
+	 * time. Also masking should be done before updating the configuration
+	 * and unmasking afterwards.
+	 */
+	icl_pcode_restrict_qgv_points(i915, new_mask);
+}
+
+static void icl_sagv_post_plane_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_bw_state *old_bw_state =
+		intel_atomic_get_old_bw_state(state);
+	const struct intel_bw_state *new_bw_state =
+		intel_atomic_get_new_bw_state(state);
+	u16 old_mask, new_mask;
+
+	if (!new_bw_state)
+		return;
+
+	old_mask = old_bw_state->qgv_points_mask | new_bw_state->qgv_points_mask;
+	new_mask = new_bw_state->qgv_points_mask;
+
+	if (old_mask == new_mask)
+		return;
+
+	WARN_ON(!new_bw_state->base.changed);
+
+	drm_dbg_kms(&i915->drm, "Relaxing QGV points: 0x%x -> 0x%x\n",
+		    old_mask, new_mask);
+
+	/*
+	 * Allow required qgv points after updating the configuration.
+	 * According to BSpec we can't mask and unmask qgv points at the same
+	 * time. Also masking should be done before updating the configuration
+	 * and unmasking afterwards.
+	 */
+	icl_pcode_restrict_qgv_points(i915, new_mask);
+}
+
+void intel_sagv_pre_plane_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+
+	/*
+	 * Just return if we can't control SAGV or don't have it.
+	 * This is different from situation when we have SAGV but just can't
+	 * afford it due to DBuf limitation - in case if SAGV is completely
+	 * disabled in a BIOS, we are not even allowed to send a PCode request,
+	 * as it will throw an error. So have to check it here.
+	 */
+	if (!intel_has_sagv(i915))
+		return;
+
+	if (DISPLAY_VER(i915) >= 11)
+		icl_sagv_pre_plane_update(state);
+	else
+		skl_sagv_pre_plane_update(state);
+}
+
+void intel_sagv_post_plane_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+
+	/*
+	 * Just return if we can't control SAGV or don't have it.
+	 * This is different from situation when we have SAGV but just can't
+	 * afford it due to DBuf limitation - in case if SAGV is completely
+	 * disabled in a BIOS, we are not even allowed to send a PCode request,
+	 * as it will throw an error. So have to check it here.
+	 */
+	if (!intel_has_sagv(i915))
+		return;
+
+	if (DISPLAY_VER(i915) >= 11)
+		icl_sagv_post_plane_update(state);
+	else
+		skl_sagv_post_plane_update(state);
+}
+
+static bool skl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum plane_id plane_id;
+	int max_level = INT_MAX;
+
+	if (!intel_has_sagv(i915))
+		return false;
+
+	if (!crtc_state->hw.active)
+		return true;
+
+	if (crtc_state->hw.pipe_mode.flags & DRM_MODE_FLAG_INTERLACE)
+		return false;
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		const struct skl_plane_wm *wm =
+			&crtc_state->wm.skl.optimal.planes[plane_id];
+		int level;
+
+		/* Skip this plane if it's not enabled */
+		if (!wm->wm[0].enable)
+			continue;
+
+		/* Find the highest enabled wm level for this plane */
+		for (level = ilk_wm_max_level(i915);
+		     !wm->wm[level].enable; --level)
+		     { }
+
+		/* Highest common enabled wm level for all planes */
+		max_level = min(level, max_level);
+	}
+
+	/* No enabled planes? */
+	if (max_level == INT_MAX)
+		return true;
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		const struct skl_plane_wm *wm =
+			&crtc_state->wm.skl.optimal.planes[plane_id];
+
+		/*
+		 * All enabled planes must have enabled a common wm level that
+		 * can tolerate memory latencies higher than sagv_block_time_us
+		 */
+		if (wm->wm[0].enable && !wm->wm[max_level].can_sagv)
+			return false;
+	}
+
+	return true;
+}
+
+static bool tgl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	enum plane_id plane_id;
+
+	if (!crtc_state->hw.active)
+		return true;
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		const struct skl_plane_wm *wm =
+			&crtc_state->wm.skl.optimal.planes[plane_id];
+
+		if (wm->wm[0].enable && !wm->sagv.wm0.enable)
+			return false;
+	}
+
+	return true;
+}
+
+static bool intel_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+
+	if (DISPLAY_VER(i915) >= 12)
+		return tgl_crtc_can_enable_sagv(crtc_state);
+	else
+		return skl_crtc_can_enable_sagv(crtc_state);
+}
+
+bool intel_can_enable_sagv(struct drm_i915_private *i915,
+			   const struct intel_bw_state *bw_state)
+{
+	if (DISPLAY_VER(i915) < 11 &&
+	    bw_state->active_pipes && !is_power_of_2(bw_state->active_pipes))
+		return false;
+
+	return bw_state->pipe_sagv_reject == 0;
+}
+
+static int intel_compute_sagv_mask(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	int ret;
+	struct intel_crtc *crtc;
+	struct intel_crtc_state *new_crtc_state;
+	struct intel_bw_state *new_bw_state = NULL;
+	const struct intel_bw_state *old_bw_state = NULL;
+	int i;
+
+	for_each_new_intel_crtc_in_state(state, crtc,
+					 new_crtc_state, i) {
+		new_bw_state = intel_atomic_get_bw_state(state);
+		if (IS_ERR(new_bw_state))
+			return PTR_ERR(new_bw_state);
+
+		old_bw_state = intel_atomic_get_old_bw_state(state);
+
+		if (intel_crtc_can_enable_sagv(new_crtc_state))
+			new_bw_state->pipe_sagv_reject &= ~BIT(crtc->pipe);
+		else
+			new_bw_state->pipe_sagv_reject |= BIT(crtc->pipe);
+	}
+
+	if (!new_bw_state)
+		return 0;
+
+	new_bw_state->active_pipes =
+		intel_calc_active_pipes(state, old_bw_state->active_pipes);
+
+	if (new_bw_state->active_pipes != old_bw_state->active_pipes) {
+		ret = intel_atomic_lock_global_state(&new_bw_state->base);
+		if (ret)
+			return ret;
+	}
+
+	if (intel_can_enable_sagv(i915, new_bw_state) !=
+	    intel_can_enable_sagv(i915, old_bw_state)) {
+		ret = intel_atomic_serialize_global_state(&new_bw_state->base);
+		if (ret)
+			return ret;
+	} else if (new_bw_state->pipe_sagv_reject != old_bw_state->pipe_sagv_reject) {
+		ret = intel_atomic_lock_global_state(&new_bw_state->base);
+		if (ret)
+			return ret;
+	}
+
+	for_each_new_intel_crtc_in_state(state, crtc,
+					 new_crtc_state, i) {
+		struct skl_pipe_wm *pipe_wm = &new_crtc_state->wm.skl.optimal;
+
+		/*
+		 * We store use_sagv_wm in the crtc state rather than relying on
+		 * that bw state since we have no convenient way to get at the
+		 * latter from the plane commit hooks (especially in the legacy
+		 * cursor case)
+		 */
+		pipe_wm->use_sagv_wm = !HAS_HW_SAGV_WM(i915) &&
+			DISPLAY_VER(i915) >= 12 &&
+			intel_can_enable_sagv(i915, new_bw_state);
+	}
+
+	return 0;
+}
+
+static u16 skl_ddb_entry_init(struct skl_ddb_entry *entry,
+			      u16 start, u16 end)
+{
+	entry->start = start;
+	entry->end = end;
+
+	return end;
+}
+
+static int intel_dbuf_slice_size(struct drm_i915_private *i915)
+{
+	return INTEL_INFO(i915)->display.dbuf.size /
+		hweight8(INTEL_INFO(i915)->display.dbuf.slice_mask);
+}
+
+static void
+skl_ddb_entry_for_slices(struct drm_i915_private *i915, u8 slice_mask,
+			 struct skl_ddb_entry *ddb)
+{
+	int slice_size = intel_dbuf_slice_size(i915);
+
+	if (!slice_mask) {
+		ddb->start = 0;
+		ddb->end = 0;
+		return;
+	}
+
+	ddb->start = (ffs(slice_mask) - 1) * slice_size;
+	ddb->end = fls(slice_mask) * slice_size;
+
+	WARN_ON(ddb->start >= ddb->end);
+	WARN_ON(ddb->end > INTEL_INFO(i915)->display.dbuf.size);
+}
+
+static unsigned int mbus_ddb_offset(struct drm_i915_private *i915, u8 slice_mask)
+{
+	struct skl_ddb_entry ddb;
+
+	if (slice_mask & (BIT(DBUF_S1) | BIT(DBUF_S2)))
+		slice_mask = BIT(DBUF_S1);
+	else if (slice_mask & (BIT(DBUF_S3) | BIT(DBUF_S4)))
+		slice_mask = BIT(DBUF_S3);
+
+	skl_ddb_entry_for_slices(i915, slice_mask, &ddb);
+
+	return ddb.start;
+}
+
+u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *i915,
+			    const struct skl_ddb_entry *entry)
+{
+	int slice_size = intel_dbuf_slice_size(i915);
+	enum dbuf_slice start_slice, end_slice;
+	u8 slice_mask = 0;
+
+	if (!skl_ddb_entry_size(entry))
+		return 0;
+
+	start_slice = entry->start / slice_size;
+	end_slice = (entry->end - 1) / slice_size;
+
+	/*
+	 * Per plane DDB entry can in a really worst case be on multiple slices
+	 * but single entry is anyway contigious.
+	 */
+	while (start_slice <= end_slice) {
+		slice_mask |= BIT(start_slice);
+		start_slice++;
+	}
+
+	return slice_mask;
+}
+
+static unsigned int intel_crtc_ddb_weight(const struct intel_crtc_state *crtc_state)
+{
+	const struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
+	int hdisplay, vdisplay;
+
+	if (!crtc_state->hw.active)
+		return 0;
+
+	/*
+	 * Watermark/ddb requirement highly depends upon width of the
+	 * framebuffer, So instead of allocating DDB equally among pipes
+	 * distribute DDB based on resolution/width of the display.
+	 */
+	drm_mode_get_hv_timing(pipe_mode, &hdisplay, &vdisplay);
+
+	return hdisplay;
+}
+
+static void intel_crtc_dbuf_weights(const struct intel_dbuf_state *dbuf_state,
+				    enum pipe for_pipe,
+				    unsigned int *weight_start,
+				    unsigned int *weight_end,
+				    unsigned int *weight_total)
+{
+	struct drm_i915_private *i915 =
+		to_i915(dbuf_state->base.state->base.dev);
+	enum pipe pipe;
+
+	*weight_start = 0;
+	*weight_end = 0;
+	*weight_total = 0;
+
+	for_each_pipe(i915, pipe) {
+		int weight = dbuf_state->weight[pipe];
+
+		/*
+		 * Do not account pipes using other slice sets
+		 * luckily as of current BSpec slice sets do not partially
+		 * intersect(pipes share either same one slice or same slice set
+		 * i.e no partial intersection), so it is enough to check for
+		 * equality for now.
+		 */
+		if (dbuf_state->slices[pipe] != dbuf_state->slices[for_pipe])
+			continue;
+
+		*weight_total += weight;
+		if (pipe < for_pipe) {
+			*weight_start += weight;
+			*weight_end += weight;
+		} else if (pipe == for_pipe) {
+			*weight_end += weight;
+		}
+	}
+}
+
+static int
+skl_crtc_allocate_ddb(struct intel_atomic_state *state, struct intel_crtc *crtc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	unsigned int weight_total, weight_start, weight_end;
+	const struct intel_dbuf_state *old_dbuf_state =
+		intel_atomic_get_old_dbuf_state(state);
+	struct intel_dbuf_state *new_dbuf_state =
+		intel_atomic_get_new_dbuf_state(state);
+	struct intel_crtc_state *crtc_state;
+	struct skl_ddb_entry ddb_slices;
+	enum pipe pipe = crtc->pipe;
+	unsigned int mbus_offset = 0;
+	u32 ddb_range_size;
+	u32 dbuf_slice_mask;
+	u32 start, end;
+	int ret;
+
+	if (new_dbuf_state->weight[pipe] == 0) {
+		skl_ddb_entry_init(&new_dbuf_state->ddb[pipe], 0, 0);
+		goto out;
+	}
+
+	dbuf_slice_mask = new_dbuf_state->slices[pipe];
+
+	skl_ddb_entry_for_slices(i915, dbuf_slice_mask, &ddb_slices);
+	mbus_offset = mbus_ddb_offset(i915, dbuf_slice_mask);
+	ddb_range_size = skl_ddb_entry_size(&ddb_slices);
+
+	intel_crtc_dbuf_weights(new_dbuf_state, pipe,
+				&weight_start, &weight_end, &weight_total);
+
+	start = ddb_range_size * weight_start / weight_total;
+	end = ddb_range_size * weight_end / weight_total;
+
+	skl_ddb_entry_init(&new_dbuf_state->ddb[pipe],
+			   ddb_slices.start - mbus_offset + start,
+			   ddb_slices.start - mbus_offset + end);
+
+out:
+	if (old_dbuf_state->slices[pipe] == new_dbuf_state->slices[pipe] &&
+	    skl_ddb_entry_equal(&old_dbuf_state->ddb[pipe],
+				&new_dbuf_state->ddb[pipe]))
+		return 0;
+
+	ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
+	if (ret)
+		return ret;
+
+	crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
+	if (IS_ERR(crtc_state))
+		return PTR_ERR(crtc_state);
+
+	/*
+	 * Used for checking overlaps, so we need absolute
+	 * offsets instead of MBUS relative offsets.
+	 */
+	crtc_state->wm.skl.ddb.start = mbus_offset + new_dbuf_state->ddb[pipe].start;
+	crtc_state->wm.skl.ddb.end = mbus_offset + new_dbuf_state->ddb[pipe].end;
+
+	drm_dbg_kms(&i915->drm,
+		    "[CRTC:%d:%s] dbuf slices 0x%x -> 0x%x, ddb (%d - %d) -> (%d - %d), active pipes 0x%x -> 0x%x\n",
+		    crtc->base.base.id, crtc->base.name,
+		    old_dbuf_state->slices[pipe], new_dbuf_state->slices[pipe],
+		    old_dbuf_state->ddb[pipe].start, old_dbuf_state->ddb[pipe].end,
+		    new_dbuf_state->ddb[pipe].start, new_dbuf_state->ddb[pipe].end,
+		    old_dbuf_state->active_pipes, new_dbuf_state->active_pipes);
+
+	return 0;
+}
+
+static int skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
+				 int width, const struct drm_format_info *format,
+				 u64 modifier, unsigned int rotation,
+				 u32 plane_pixel_rate, struct skl_wm_params *wp,
+				 int color_plane);
+
+static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state,
+				 struct intel_plane *plane,
+				 int level,
+				 unsigned int latency,
+				 const struct skl_wm_params *wp,
+				 const struct skl_wm_level *result_prev,
+				 struct skl_wm_level *result /* out */);
+
+static unsigned int
+skl_cursor_allocation(const struct intel_crtc_state *crtc_state,
+		      int num_active)
+{
+	struct intel_plane *plane = to_intel_plane(crtc_state->uapi.crtc->cursor);
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+	int level, max_level = ilk_wm_max_level(i915);
+	struct skl_wm_level wm = {};
+	int ret, min_ddb_alloc = 0;
+	struct skl_wm_params wp;
+
+	ret = skl_compute_wm_params(crtc_state, 256,
+				    drm_format_info(DRM_FORMAT_ARGB8888),
+				    DRM_FORMAT_MOD_LINEAR,
+				    DRM_MODE_ROTATE_0,
+				    crtc_state->pixel_rate, &wp, 0);
+	drm_WARN_ON(&i915->drm, ret);
+
+	for (level = 0; level <= max_level; level++) {
+		unsigned int latency = i915->display.wm.skl_latency[level];
+
+		skl_compute_plane_wm(crtc_state, plane, level, latency, &wp, &wm, &wm);
+		if (wm.min_ddb_alloc == U16_MAX)
+			break;
+
+		min_ddb_alloc = wm.min_ddb_alloc;
+	}
+
+	return max(num_active == 1 ? 32 : 8, min_ddb_alloc);
+}
+
+static void skl_ddb_entry_init_from_hw(struct skl_ddb_entry *entry, u32 reg)
+{
+	skl_ddb_entry_init(entry,
+			   REG_FIELD_GET(PLANE_BUF_START_MASK, reg),
+			   REG_FIELD_GET(PLANE_BUF_END_MASK, reg));
+	if (entry->end)
+		entry->end++;
+}
+
+static void
+skl_ddb_get_hw_plane_state(struct drm_i915_private *i915,
+			   const enum pipe pipe,
+			   const enum plane_id plane_id,
+			   struct skl_ddb_entry *ddb,
+			   struct skl_ddb_entry *ddb_y)
+{
+	u32 val;
+
+	/* Cursor doesn't support NV12/planar, so no extra calculation needed */
+	if (plane_id == PLANE_CURSOR) {
+		val = intel_uncore_read(&i915->uncore, CUR_BUF_CFG(pipe));
+		skl_ddb_entry_init_from_hw(ddb, val);
+		return;
+	}
+
+	val = intel_uncore_read(&i915->uncore, PLANE_BUF_CFG(pipe, plane_id));
+	skl_ddb_entry_init_from_hw(ddb, val);
+
+	if (DISPLAY_VER(i915) >= 11)
+		return;
+
+	val = intel_uncore_read(&i915->uncore, PLANE_NV12_BUF_CFG(pipe, plane_id));
+	skl_ddb_entry_init_from_hw(ddb_y, val);
+}
+
+static void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
+				      struct skl_ddb_entry *ddb,
+				      struct skl_ddb_entry *ddb_y)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum intel_display_power_domain power_domain;
+	enum pipe pipe = crtc->pipe;
+	intel_wakeref_t wakeref;
+	enum plane_id plane_id;
+
+	power_domain = POWER_DOMAIN_PIPE(pipe);
+	wakeref = intel_display_power_get_if_enabled(i915, power_domain);
+	if (!wakeref)
+		return;
+
+	for_each_plane_id_on_crtc(crtc, plane_id)
+		skl_ddb_get_hw_plane_state(i915, pipe,
+					   plane_id,
+					   &ddb[plane_id],
+					   &ddb_y[plane_id]);
+
+	intel_display_power_put(i915, power_domain, wakeref);
+}
+
+struct dbuf_slice_conf_entry {
+	u8 active_pipes;
+	u8 dbuf_mask[I915_MAX_PIPES];
+	bool join_mbus;
+};
+
+/*
+ * Table taken from Bspec 12716
+ * Pipes do have some preferred DBuf slice affinity,
+ * plus there are some hardcoded requirements on how
+ * those should be distributed for multipipe scenarios.
+ * For more DBuf slices algorithm can get even more messy
+ * and less readable, so decided to use a table almost
+ * as is from BSpec itself - that way it is at least easier
+ * to compare, change and check.
+ */
+static const struct dbuf_slice_conf_entry icl_allowed_dbufs[] =
+/* Autogenerated with igt/tools/intel_dbuf_map tool: */
+{
+	{
+		.active_pipes = BIT(PIPE_A),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_C] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+		},
+	},
+	{}
+};
+
+/*
+ * Table taken from Bspec 49255
+ * Pipes do have some preferred DBuf slice affinity,
+ * plus there are some hardcoded requirements on how
+ * those should be distributed for multipipe scenarios.
+ * For more DBuf slices algorithm can get even more messy
+ * and less readable, so decided to use a table almost
+ * as is from BSpec itself - that way it is at least easier
+ * to compare, change and check.
+ */
+static const struct dbuf_slice_conf_entry tgl_allowed_dbufs[] =
+/* Autogenerated with igt/tools/intel_dbuf_map tool: */
+{
+	{
+		.active_pipes = BIT(PIPE_A),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S2),
+			[PIPE_B] = BIT(DBUF_S1),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_C] = BIT(DBUF_S2) | BIT(DBUF_S1),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_D] = BIT(DBUF_S2) | BIT(DBUF_S1),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_D] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1),
+			[PIPE_D] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S1),
+			[PIPE_D] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_C] = BIT(DBUF_S1),
+			[PIPE_D] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+			[PIPE_D] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+			[PIPE_D] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S1),
+			[PIPE_C] = BIT(DBUF_S2),
+			[PIPE_D] = BIT(DBUF_S2),
+		},
+	},
+	{}
+};
+
+static const struct dbuf_slice_conf_entry dg2_allowed_dbufs[] = {
+	{
+		.active_pipes = BIT(PIPE_A),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S2),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_D] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_D] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_D] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S2),
+			[PIPE_D] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_C] = BIT(DBUF_S3),
+			[PIPE_D] = BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_C] = BIT(DBUF_S3),
+			[PIPE_D] = BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_C] = BIT(DBUF_S3),
+			[PIPE_D] = BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1),
+			[PIPE_B] = BIT(DBUF_S2),
+			[PIPE_C] = BIT(DBUF_S3),
+			[PIPE_D] = BIT(DBUF_S4),
+		},
+	},
+	{}
+};
+
+static const struct dbuf_slice_conf_entry adlp_allowed_dbufs[] = {
+	/*
+	 * Keep the join_mbus cases first so check_mbus_joined()
+	 * will prefer them over the !join_mbus cases.
+	 */
+	{
+		.active_pipes = BIT(PIPE_A),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2) | BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+		.join_mbus = true,
+	},
+	{
+		.active_pipes = BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2) | BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+		.join_mbus = true,
+	},
+	{
+		.active_pipes = BIT(PIPE_A),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+		.join_mbus = false,
+	},
+	{
+		.active_pipes = BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+		.join_mbus = false,
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{
+		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
+		.dbuf_mask = {
+			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
+			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
+			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
+		},
+	},
+	{}
+
+};
+
+static bool check_mbus_joined(u8 active_pipes,
+			      const struct dbuf_slice_conf_entry *dbuf_slices)
+{
+	int i;
+
+	for (i = 0; dbuf_slices[i].active_pipes != 0; i++) {
+		if (dbuf_slices[i].active_pipes == active_pipes)
+			return dbuf_slices[i].join_mbus;
+	}
+	return false;
+}
+
+static bool adlp_check_mbus_joined(u8 active_pipes)
+{
+	return check_mbus_joined(active_pipes, adlp_allowed_dbufs);
+}
+
+static u8 compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus,
+			      const struct dbuf_slice_conf_entry *dbuf_slices)
+{
+	int i;
+
+	for (i = 0; dbuf_slices[i].active_pipes != 0; i++) {
+		if (dbuf_slices[i].active_pipes == active_pipes &&
+		    dbuf_slices[i].join_mbus == join_mbus)
+			return dbuf_slices[i].dbuf_mask[pipe];
+	}
+	return 0;
+}
+
+/*
+ * This function finds an entry with same enabled pipe configuration and
+ * returns correspondent DBuf slice mask as stated in BSpec for particular
+ * platform.
+ */
+static u8 icl_compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus)
+{
+	/*
+	 * FIXME: For ICL this is still a bit unclear as prev BSpec revision
+	 * required calculating "pipe ratio" in order to determine
+	 * if one or two slices can be used for single pipe configurations
+	 * as additional constraint to the existing table.
+	 * However based on recent info, it should be not "pipe ratio"
+	 * but rather ratio between pixel_rate and cdclk with additional
+	 * constants, so for now we are using only table until this is
+	 * clarified. Also this is the reason why crtc_state param is
+	 * still here - we will need it once those additional constraints
+	 * pop up.
+	 */
+	return compute_dbuf_slices(pipe, active_pipes, join_mbus,
+				   icl_allowed_dbufs);
+}
+
+static u8 tgl_compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus)
+{
+	return compute_dbuf_slices(pipe, active_pipes, join_mbus,
+				   tgl_allowed_dbufs);
+}
+
+static u8 adlp_compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus)
+{
+	return compute_dbuf_slices(pipe, active_pipes, join_mbus,
+				   adlp_allowed_dbufs);
+}
+
+static u8 dg2_compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus)
+{
+	return compute_dbuf_slices(pipe, active_pipes, join_mbus,
+				   dg2_allowed_dbufs);
+}
+
+static u8 skl_compute_dbuf_slices(struct intel_crtc *crtc, u8 active_pipes, bool join_mbus)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
+
+	if (IS_DG2(i915))
+		return dg2_compute_dbuf_slices(pipe, active_pipes, join_mbus);
+	else if (DISPLAY_VER(i915) >= 13)
+		return adlp_compute_dbuf_slices(pipe, active_pipes, join_mbus);
+	else if (DISPLAY_VER(i915) == 12)
+		return tgl_compute_dbuf_slices(pipe, active_pipes, join_mbus);
+	else if (DISPLAY_VER(i915) == 11)
+		return icl_compute_dbuf_slices(pipe, active_pipes, join_mbus);
+	/*
+	 * For anything else just return one slice yet.
+	 * Should be extended for other platforms.
+	 */
+	return active_pipes & BIT(pipe) ? BIT(DBUF_S1) : 0;
+}
+
+static bool
+use_minimal_wm0_only(const struct intel_crtc_state *crtc_state,
+		     struct intel_plane *plane)
+{
+	struct drm_i915_private *i915 = to_i915(plane->base.dev);
+
+	return DISPLAY_VER(i915) >= 13 &&
+	       crtc_state->uapi.async_flip &&
+	       plane->async_flip;
+}
+
+static u64
+skl_total_relative_data_rate(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum plane_id plane_id;
+	u64 data_rate = 0;
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		if (plane_id == PLANE_CURSOR)
+			continue;
+
+		data_rate += crtc_state->rel_data_rate[plane_id];
+
+		if (DISPLAY_VER(i915) < 11)
+			data_rate += crtc_state->rel_data_rate_y[plane_id];
+	}
+
+	return data_rate;
+}
+
+static const struct skl_wm_level *
+skl_plane_wm_level(const struct skl_pipe_wm *pipe_wm,
+		   enum plane_id plane_id,
+		   int level)
+{
+	const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
+
+	if (level == 0 && pipe_wm->use_sagv_wm)
+		return &wm->sagv.wm0;
+
+	return &wm->wm[level];
+}
+
+static const struct skl_wm_level *
+skl_plane_trans_wm(const struct skl_pipe_wm *pipe_wm,
+		   enum plane_id plane_id)
+{
+	const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
+
+	if (pipe_wm->use_sagv_wm)
+		return &wm->sagv.trans_wm;
+
+	return &wm->trans_wm;
+}
+
+/*
+ * We only disable the watermarks for each plane if
+ * they exceed the ddb allocation of said plane. This
+ * is done so that we don't end up touching cursor
+ * watermarks needlessly when some other plane reduces
+ * our max possible watermark level.
+ *
+ * Bspec has this to say about the PLANE_WM enable bit:
+ * "All the watermarks at this level for all enabled
+ *  planes must be enabled before the level will be used."
+ * So this is actually safe to do.
+ */
+static void
+skl_check_wm_level(struct skl_wm_level *wm, const struct skl_ddb_entry *ddb)
+{
+	if (wm->min_ddb_alloc > skl_ddb_entry_size(ddb))
+		memset(wm, 0, sizeof(*wm));
+}
+
+static void
+skl_check_nv12_wm_level(struct skl_wm_level *wm, struct skl_wm_level *uv_wm,
+			const struct skl_ddb_entry *ddb_y, const struct skl_ddb_entry *ddb)
+{
+	if (wm->min_ddb_alloc > skl_ddb_entry_size(ddb_y) ||
+	    uv_wm->min_ddb_alloc > skl_ddb_entry_size(ddb)) {
+		memset(wm, 0, sizeof(*wm));
+		memset(uv_wm, 0, sizeof(*uv_wm));
+	}
+}
+
+static bool icl_need_wm1_wa(struct drm_i915_private *i915,
+			    enum plane_id plane_id)
+{
+	/*
+	 * Wa_1408961008:icl, ehl
+	 * Wa_14012656716:tgl, adl
+	 * Underruns with WM1+ disabled
+	 */
+	return DISPLAY_VER(i915) == 11 ||
+	       (IS_DISPLAY_VER(i915, 12, 13) && plane_id == PLANE_CURSOR);
+}
+
+struct skl_plane_ddb_iter {
+	u64 data_rate;
+	u16 start, size;
+};
+
+static void
+skl_allocate_plane_ddb(struct skl_plane_ddb_iter *iter,
+		       struct skl_ddb_entry *ddb,
+		       const struct skl_wm_level *wm,
+		       u64 data_rate)
+{
+	u16 size, extra = 0;
+
+	if (data_rate) {
+		extra = min_t(u16, iter->size,
+			      DIV64_U64_ROUND_UP(iter->size * data_rate,
+						 iter->data_rate));
+		iter->size -= extra;
+		iter->data_rate -= data_rate;
+	}
+
+	/*
+	 * Keep ddb entry of all disabled planes explicitly zeroed
+	 * to avoid skl_ddb_add_affected_planes() adding them to
+	 * the state when other planes change their allocations.
+	 */
+	size = wm->min_ddb_alloc + extra;
+	if (size)
+		iter->start = skl_ddb_entry_init(ddb, iter->start,
+						 iter->start + size);
+}
+
+static int
+skl_crtc_allocate_plane_ddb(struct intel_atomic_state *state,
+			    struct intel_crtc *crtc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	const struct intel_dbuf_state *dbuf_state =
+		intel_atomic_get_new_dbuf_state(state);
+	const struct skl_ddb_entry *alloc = &dbuf_state->ddb[crtc->pipe];
+	int num_active = hweight8(dbuf_state->active_pipes);
+	struct skl_plane_ddb_iter iter;
+	enum plane_id plane_id;
+	u16 cursor_size;
+	u32 blocks;
+	int level;
+
+	/* Clear the partitioning for disabled planes. */
+	memset(crtc_state->wm.skl.plane_ddb, 0, sizeof(crtc_state->wm.skl.plane_ddb));
+	memset(crtc_state->wm.skl.plane_ddb_y, 0, sizeof(crtc_state->wm.skl.plane_ddb_y));
+
+	if (!crtc_state->hw.active)
+		return 0;
+
+	iter.start = alloc->start;
+	iter.size = skl_ddb_entry_size(alloc);
+	if (iter.size == 0)
+		return 0;
+
+	/* Allocate fixed number of blocks for cursor. */
+	cursor_size = skl_cursor_allocation(crtc_state, num_active);
+	iter.size -= cursor_size;
+	skl_ddb_entry_init(&crtc_state->wm.skl.plane_ddb[PLANE_CURSOR],
+			   alloc->end - cursor_size, alloc->end);
+
+	iter.data_rate = skl_total_relative_data_rate(crtc_state);
+
+	/*
+	 * Find the highest watermark level for which we can satisfy the block
+	 * requirement of active planes.
+	 */
+	for (level = ilk_wm_max_level(i915); level >= 0; level--) {
+		blocks = 0;
+		for_each_plane_id_on_crtc(crtc, plane_id) {
+			const struct skl_plane_wm *wm =
+				&crtc_state->wm.skl.optimal.planes[plane_id];
+
+			if (plane_id == PLANE_CURSOR) {
+				const struct skl_ddb_entry *ddb =
+					&crtc_state->wm.skl.plane_ddb[plane_id];
+
+				if (wm->wm[level].min_ddb_alloc > skl_ddb_entry_size(ddb)) {
+					drm_WARN_ON(&i915->drm,
+						    wm->wm[level].min_ddb_alloc != U16_MAX);
+					blocks = U32_MAX;
+					break;
+				}
+				continue;
+			}
+
+			blocks += wm->wm[level].min_ddb_alloc;
+			blocks += wm->uv_wm[level].min_ddb_alloc;
+		}
+
+		if (blocks <= iter.size) {
+			iter.size -= blocks;
+			break;
+		}
+	}
+
+	if (level < 0) {
+		drm_dbg_kms(&i915->drm,
+			    "Requested display configuration exceeds system DDB limitations");
+		drm_dbg_kms(&i915->drm, "minimum required %d/%d\n",
+			    blocks, iter.size);
+		return -EINVAL;
+	}
+
+	/* avoid the WARN later when we don't allocate any extra DDB */
+	if (iter.data_rate == 0)
+		iter.size = 0;
+
+	/*
+	 * Grant each plane the blocks it requires at the highest achievable
+	 * watermark level, plus an extra share of the leftover blocks
+	 * proportional to its relative data rate.
+	 */
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		struct skl_ddb_entry *ddb =
+			&crtc_state->wm.skl.plane_ddb[plane_id];
+		struct skl_ddb_entry *ddb_y =
+			&crtc_state->wm.skl.plane_ddb_y[plane_id];
+		const struct skl_plane_wm *wm =
+			&crtc_state->wm.skl.optimal.planes[plane_id];
+
+		if (plane_id == PLANE_CURSOR)
+			continue;
+
+		if (DISPLAY_VER(i915) < 11 &&
+		    crtc_state->nv12_planes & BIT(plane_id)) {
+			skl_allocate_plane_ddb(&iter, ddb_y, &wm->wm[level],
+					       crtc_state->rel_data_rate_y[plane_id]);
+			skl_allocate_plane_ddb(&iter, ddb, &wm->uv_wm[level],
+					       crtc_state->rel_data_rate[plane_id]);
+		} else {
+			skl_allocate_plane_ddb(&iter, ddb, &wm->wm[level],
+					       crtc_state->rel_data_rate[plane_id]);
+		}
+	}
+	drm_WARN_ON(&i915->drm, iter.size != 0 || iter.data_rate != 0);
+
+	/*
+	 * When we calculated watermark values we didn't know how high
+	 * of a level we'd actually be able to hit, so we just marked
+	 * all levels as "enabled."  Go back now and disable the ones
+	 * that aren't actually possible.
+	 */
+	for (level++; level <= ilk_wm_max_level(i915); level++) {
+		for_each_plane_id_on_crtc(crtc, plane_id) {
+			const struct skl_ddb_entry *ddb =
+				&crtc_state->wm.skl.plane_ddb[plane_id];
+			const struct skl_ddb_entry *ddb_y =
+				&crtc_state->wm.skl.plane_ddb_y[plane_id];
+			struct skl_plane_wm *wm =
+				&crtc_state->wm.skl.optimal.planes[plane_id];
+
+			if (DISPLAY_VER(i915) < 11 &&
+			    crtc_state->nv12_planes & BIT(plane_id))
+				skl_check_nv12_wm_level(&wm->wm[level],
+							&wm->uv_wm[level],
+							ddb_y, ddb);
+			else
+				skl_check_wm_level(&wm->wm[level], ddb);
+
+			if (icl_need_wm1_wa(i915, plane_id) &&
+			    level == 1 && wm->wm[0].enable) {
+				wm->wm[level].blocks = wm->wm[0].blocks;
+				wm->wm[level].lines = wm->wm[0].lines;
+				wm->wm[level].ignore_lines = wm->wm[0].ignore_lines;
+			}
+		}
+	}
+
+	/*
+	 * Go back and disable the transition and SAGV watermarks
+	 * if it turns out we don't have enough DDB blocks for them.
+	 */
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		const struct skl_ddb_entry *ddb =
+			&crtc_state->wm.skl.plane_ddb[plane_id];
+		const struct skl_ddb_entry *ddb_y =
+			&crtc_state->wm.skl.plane_ddb_y[plane_id];
+		struct skl_plane_wm *wm =
+			&crtc_state->wm.skl.optimal.planes[plane_id];
+
+		if (DISPLAY_VER(i915) < 11 &&
+		    crtc_state->nv12_planes & BIT(plane_id)) {
+			skl_check_wm_level(&wm->trans_wm, ddb_y);
+		} else {
+			WARN_ON(skl_ddb_entry_size(ddb_y));
+
+			skl_check_wm_level(&wm->trans_wm, ddb);
+		}
+
+		skl_check_wm_level(&wm->sagv.wm0, ddb);
+		skl_check_wm_level(&wm->sagv.trans_wm, ddb);
+	}
+
+	return 0;
+}
+
+/*
+ * The max latency should be 257 (max the punit can code is 255 and we add 2us
+ * for the read latency) and cpp should always be <= 8, so that
+ * should allow pixel_rate up to ~2 GHz which seems sufficient since max
+ * 2xcdclk is 1350 MHz and the pixel rate should never exceed that.
+ */
+static uint_fixed_16_16_t
+skl_wm_method1(const struct drm_i915_private *i915, u32 pixel_rate,
+	       u8 cpp, u32 latency, u32 dbuf_block_size)
+{
+	u32 wm_intermediate_val;
+	uint_fixed_16_16_t ret;
+
+	if (latency == 0)
+		return FP_16_16_MAX;
+
+	wm_intermediate_val = latency * pixel_rate * cpp;
+	ret = div_fixed16(wm_intermediate_val, 1000 * dbuf_block_size);
+
+	if (DISPLAY_VER(i915) >= 10)
+		ret = add_fixed16_u32(ret, 1);
+
+	return ret;
+}
+
+static uint_fixed_16_16_t
+skl_wm_method2(u32 pixel_rate, u32 pipe_htotal, u32 latency,
+	       uint_fixed_16_16_t plane_blocks_per_line)
+{
+	u32 wm_intermediate_val;
+	uint_fixed_16_16_t ret;
+
+	if (latency == 0)
+		return FP_16_16_MAX;
+
+	wm_intermediate_val = latency * pixel_rate;
+	wm_intermediate_val = DIV_ROUND_UP(wm_intermediate_val,
+					   pipe_htotal * 1000);
+	ret = mul_u32_fixed16(wm_intermediate_val, plane_blocks_per_line);
+	return ret;
+}
+
+static uint_fixed_16_16_t
+intel_get_linetime_us(const struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+	u32 pixel_rate;
+	u32 crtc_htotal;
+	uint_fixed_16_16_t linetime_us;
+
+	if (!crtc_state->hw.active)
+		return u32_to_fixed16(0);
+
+	pixel_rate = crtc_state->pixel_rate;
+
+	if (drm_WARN_ON(&i915->drm, pixel_rate == 0))
+		return u32_to_fixed16(0);
+
+	crtc_htotal = crtc_state->hw.pipe_mode.crtc_htotal;
+	linetime_us = div_fixed16(crtc_htotal * 1000, pixel_rate);
+
+	return linetime_us;
+}
+
+static int
+skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
+		      int width, const struct drm_format_info *format,
+		      u64 modifier, unsigned int rotation,
+		      u32 plane_pixel_rate, struct skl_wm_params *wp,
+		      int color_plane)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	u32 interm_pbpl;
+
+	/* only planar format has two planes */
+	if (color_plane == 1 &&
+	    !intel_format_info_is_yuv_semiplanar(format, modifier)) {
+		drm_dbg_kms(&i915->drm,
+			    "Non planar format have single plane\n");
+		return -EINVAL;
+	}
+
+	wp->y_tiled = modifier == I915_FORMAT_MOD_Y_TILED ||
+		      modifier == I915_FORMAT_MOD_4_TILED ||
+		      modifier == I915_FORMAT_MOD_Yf_TILED ||
+		      modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
+		      modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
+	wp->x_tiled = modifier == I915_FORMAT_MOD_X_TILED;
+	wp->rc_surface = modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
+			 modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
+	wp->is_planar = intel_format_info_is_yuv_semiplanar(format, modifier);
+
+	wp->width = width;
+	if (color_plane == 1 && wp->is_planar)
+		wp->width /= 2;
+
+	wp->cpp = format->cpp[color_plane];
+	wp->plane_pixel_rate = plane_pixel_rate;
+
+	if (DISPLAY_VER(i915) >= 11 &&
+	    modifier == I915_FORMAT_MOD_Yf_TILED  && wp->cpp == 1)
+		wp->dbuf_block_size = 256;
+	else
+		wp->dbuf_block_size = 512;
+
+	if (drm_rotation_90_or_270(rotation)) {
+		switch (wp->cpp) {
+		case 1:
+			wp->y_min_scanlines = 16;
+			break;
+		case 2:
+			wp->y_min_scanlines = 8;
+			break;
+		case 4:
+			wp->y_min_scanlines = 4;
+			break;
+		default:
+			MISSING_CASE(wp->cpp);
+			return -EINVAL;
+		}
+	} else {
+		wp->y_min_scanlines = 4;
+	}
+
+	if (skl_needs_memory_bw_wa(i915))
+		wp->y_min_scanlines *= 2;
+
+	wp->plane_bytes_per_line = wp->width * wp->cpp;
+	if (wp->y_tiled) {
+		interm_pbpl = DIV_ROUND_UP(wp->plane_bytes_per_line *
+					   wp->y_min_scanlines,
+					   wp->dbuf_block_size);
+
+		if (DISPLAY_VER(i915) >= 10)
+			interm_pbpl++;
+
+		wp->plane_blocks_per_line = div_fixed16(interm_pbpl,
+							wp->y_min_scanlines);
+	} else {
+		interm_pbpl = DIV_ROUND_UP(wp->plane_bytes_per_line,
+					   wp->dbuf_block_size);
+
+		if (!wp->x_tiled || DISPLAY_VER(i915) >= 10)
+			interm_pbpl++;
+
+		wp->plane_blocks_per_line = u32_to_fixed16(interm_pbpl);
+	}
+
+	wp->y_tile_minimum = mul_u32_fixed16(wp->y_min_scanlines,
+					     wp->plane_blocks_per_line);
+
+	wp->linetime_us = fixed16_to_u32_round_up(intel_get_linetime_us(crtc_state));
+
+	return 0;
+}
+
+static int
+skl_compute_plane_wm_params(const struct intel_crtc_state *crtc_state,
+			    const struct intel_plane_state *plane_state,
+			    struct skl_wm_params *wp, int color_plane)
+{
+	const struct drm_framebuffer *fb = plane_state->hw.fb;
+	int width;
+
+	/*
+	 * Src coordinates are already rotated by 270 degrees for
+	 * the 90/270 degree plane rotation cases (to match the
+	 * GTT mapping), hence no need to account for rotation here.
+	 */
+	width = drm_rect_width(&plane_state->uapi.src) >> 16;
+
+	return skl_compute_wm_params(crtc_state, width,
+				     fb->format, fb->modifier,
+				     plane_state->hw.rotation,
+				     intel_plane_pixel_rate(crtc_state, plane_state),
+				     wp, color_plane);
+}
+
+static bool skl_wm_has_lines(struct drm_i915_private *i915, int level)
+{
+	if (DISPLAY_VER(i915) >= 10)
+		return true;
+
+	/* The number of lines are ignored for the level 0 watermark. */
+	return level > 0;
+}
+
+static int skl_wm_max_lines(struct drm_i915_private *i915)
+{
+	if (DISPLAY_VER(i915) >= 13)
+		return 255;
+	else
+		return 31;
+}
+
+static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state,
+				 struct intel_plane *plane,
+				 int level,
+				 unsigned int latency,
+				 const struct skl_wm_params *wp,
+				 const struct skl_wm_level *result_prev,
+				 struct skl_wm_level *result /* out */)
+{
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+	uint_fixed_16_16_t method1, method2;
+	uint_fixed_16_16_t selected_result;
+	u32 blocks, lines, min_ddb_alloc = 0;
+
+	if (latency == 0 ||
+	    (use_minimal_wm0_only(crtc_state, plane) && level > 0)) {
+		/* reject it */
+		result->min_ddb_alloc = U16_MAX;
+		return;
+	}
+
+	/*
+	 * WaIncreaseLatencyIPCEnabled: kbl,cfl
+	 * Display WA #1141: kbl,cfl
+	 */
+	if ((IS_KABYLAKE(i915) || IS_COFFEELAKE(i915) || IS_COMETLAKE(i915)) &&
+	    skl_watermark_ipc_enabled(i915))
+		latency += 4;
+
+	if (skl_needs_memory_bw_wa(i915) && wp->x_tiled)
+		latency += 15;
+
+	method1 = skl_wm_method1(i915, wp->plane_pixel_rate,
+				 wp->cpp, latency, wp->dbuf_block_size);
+	method2 = skl_wm_method2(wp->plane_pixel_rate,
+				 crtc_state->hw.pipe_mode.crtc_htotal,
+				 latency,
+				 wp->plane_blocks_per_line);
+
+	if (wp->y_tiled) {
+		selected_result = max_fixed16(method2, wp->y_tile_minimum);
+	} else {
+		if ((wp->cpp * crtc_state->hw.pipe_mode.crtc_htotal /
+		     wp->dbuf_block_size < 1) &&
+		     (wp->plane_bytes_per_line / wp->dbuf_block_size < 1)) {
+			selected_result = method2;
+		} else if (latency >= wp->linetime_us) {
+			if (DISPLAY_VER(i915) == 9)
+				selected_result = min_fixed16(method1, method2);
+			else
+				selected_result = method2;
+		} else {
+			selected_result = method1;
+		}
+	}
+
+	blocks = fixed16_to_u32_round_up(selected_result) + 1;
+	/*
+	 * Lets have blocks at minimum equivalent to plane_blocks_per_line
+	 * as there will be at minimum one line for lines configuration. This
+	 * is a work around for FIFO underruns observed with resolutions like
+	 * 4k 60 Hz in single channel DRAM configurations.
+	 *
+	 * As per the Bspec 49325, if the ddb allocation can hold at least
+	 * one plane_blocks_per_line, we should have selected method2 in
+	 * the above logic. Assuming that modern versions have enough dbuf
+	 * and method2 guarantees blocks equivalent to at least 1 line,
+	 * select the blocks as plane_blocks_per_line.
+	 *
+	 * TODO: Revisit the logic when we have better understanding on DRAM
+	 * channels' impact on the level 0 memory latency and the relevant
+	 * wm calculations.
+	 */
+	if (skl_wm_has_lines(i915, level))
+		blocks = max(blocks,
+			     fixed16_to_u32_round_up(wp->plane_blocks_per_line));
+	lines = div_round_up_fixed16(selected_result,
+				     wp->plane_blocks_per_line);
+
+	if (DISPLAY_VER(i915) == 9) {
+		/* Display WA #1125: skl,bxt,kbl */
+		if (level == 0 && wp->rc_surface)
+			blocks += fixed16_to_u32_round_up(wp->y_tile_minimum);
+
+		/* Display WA #1126: skl,bxt,kbl */
+		if (level >= 1 && level <= 7) {
+			if (wp->y_tiled) {
+				blocks += fixed16_to_u32_round_up(wp->y_tile_minimum);
+				lines += wp->y_min_scanlines;
+			} else {
+				blocks++;
+			}
+
+			/*
+			 * Make sure result blocks for higher latency levels are
+			 * at least as high as level below the current level.
+			 * Assumption in DDB algorithm optimization for special
+			 * cases. Also covers Display WA #1125 for RC.
+			 */
+			if (result_prev->blocks > blocks)
+				blocks = result_prev->blocks;
+		}
+	}
+
+	if (DISPLAY_VER(i915) >= 11) {
+		if (wp->y_tiled) {
+			int extra_lines;
+
+			if (lines % wp->y_min_scanlines == 0)
+				extra_lines = wp->y_min_scanlines;
+			else
+				extra_lines = wp->y_min_scanlines * 2 -
+					lines % wp->y_min_scanlines;
+
+			min_ddb_alloc = mul_round_up_u32_fixed16(lines + extra_lines,
+								 wp->plane_blocks_per_line);
+		} else {
+			min_ddb_alloc = blocks + DIV_ROUND_UP(blocks, 10);
+		}
+	}
+
+	if (!skl_wm_has_lines(i915, level))
+		lines = 0;
+
+	if (lines > skl_wm_max_lines(i915)) {
+		/* reject it */
+		result->min_ddb_alloc = U16_MAX;
+		return;
+	}
+
+	/*
+	 * If lines is valid, assume we can use this watermark level
+	 * for now.  We'll come back and disable it after we calculate the
+	 * DDB allocation if it turns out we don't actually have enough
+	 * blocks to satisfy it.
+	 */
+	result->blocks = blocks;
+	result->lines = lines;
+	/* Bspec says: value >= plane ddb allocation -> invalid, hence the +1 here */
+	result->min_ddb_alloc = max(min_ddb_alloc, blocks) + 1;
+	result->enable = true;
+
+	if (DISPLAY_VER(i915) < 12 && i915->display.sagv.block_time_us)
+		result->can_sagv = latency >= i915->display.sagv.block_time_us;
+}
+
+static void
+skl_compute_wm_levels(const struct intel_crtc_state *crtc_state,
+		      struct intel_plane *plane,
+		      const struct skl_wm_params *wm_params,
+		      struct skl_wm_level *levels)
+{
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+	int level, max_level = ilk_wm_max_level(i915);
+	struct skl_wm_level *result_prev = &levels[0];
+
+	for (level = 0; level <= max_level; level++) {
+		struct skl_wm_level *result = &levels[level];
+		unsigned int latency = i915->display.wm.skl_latency[level];
+
+		skl_compute_plane_wm(crtc_state, plane, level, latency,
+				     wm_params, result_prev, result);
+
+		result_prev = result;
+	}
+}
+
+static void tgl_compute_sagv_wm(const struct intel_crtc_state *crtc_state,
+				struct intel_plane *plane,
+				const struct skl_wm_params *wm_params,
+				struct skl_plane_wm *plane_wm)
+{
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+	struct skl_wm_level *sagv_wm = &plane_wm->sagv.wm0;
+	struct skl_wm_level *levels = plane_wm->wm;
+	unsigned int latency = 0;
+
+	if (i915->display.sagv.block_time_us)
+		latency = i915->display.sagv.block_time_us + i915->display.wm.skl_latency[0];
+
+	skl_compute_plane_wm(crtc_state, plane, 0, latency,
+			     wm_params, &levels[0],
+			     sagv_wm);
+}
+
+static void skl_compute_transition_wm(struct drm_i915_private *i915,
+				      struct skl_wm_level *trans_wm,
+				      const struct skl_wm_level *wm0,
+				      const struct skl_wm_params *wp)
+{
+	u16 trans_min, trans_amount, trans_y_tile_min;
+	u16 wm0_blocks, trans_offset, blocks;
+
+	/* Transition WM don't make any sense if ipc is disabled */
+	if (!skl_watermark_ipc_enabled(i915))
+		return;
+
+	/*
+	 * WaDisableTWM:skl,kbl,cfl,bxt
+	 * Transition WM are not recommended by HW team for GEN9
+	 */
+	if (DISPLAY_VER(i915) == 9)
+		return;
+
+	if (DISPLAY_VER(i915) >= 11)
+		trans_min = 4;
+	else
+		trans_min = 14;
+
+	/* Display WA #1140: glk,cnl */
+	if (DISPLAY_VER(i915) == 10)
+		trans_amount = 0;
+	else
+		trans_amount = 10; /* This is configurable amount */
+
+	trans_offset = trans_min + trans_amount;
+
+	/*
+	 * The spec asks for Selected Result Blocks for wm0 (the real value),
+	 * not Result Blocks (the integer value). Pay attention to the capital
+	 * letters. The value wm_l0->blocks is actually Result Blocks, but
+	 * since Result Blocks is the ceiling of Selected Result Blocks plus 1,
+	 * and since we later will have to get the ceiling of the sum in the
+	 * transition watermarks calculation, we can just pretend Selected
+	 * Result Blocks is Result Blocks minus 1 and it should work for the
+	 * current platforms.
+	 */
+	wm0_blocks = wm0->blocks - 1;
+
+	if (wp->y_tiled) {
+		trans_y_tile_min =
+			(u16)mul_round_up_u32_fixed16(2, wp->y_tile_minimum);
+		blocks = max(wm0_blocks, trans_y_tile_min) + trans_offset;
+	} else {
+		blocks = wm0_blocks + trans_offset;
+	}
+	blocks++;
+
+	/*
+	 * Just assume we can enable the transition watermark.  After
+	 * computing the DDB we'll come back and disable it if that
+	 * assumption turns out to be false.
+	 */
+	trans_wm->blocks = blocks;
+	trans_wm->min_ddb_alloc = max_t(u16, wm0->min_ddb_alloc, blocks + 1);
+	trans_wm->enable = true;
+}
+
+static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state,
+				     const struct intel_plane_state *plane_state,
+				     struct intel_plane *plane, int color_plane)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane->id];
+	struct skl_wm_params wm_params;
+	int ret;
+
+	ret = skl_compute_plane_wm_params(crtc_state, plane_state,
+					  &wm_params, color_plane);
+	if (ret)
+		return ret;
+
+	skl_compute_wm_levels(crtc_state, plane, &wm_params, wm->wm);
+
+	skl_compute_transition_wm(i915, &wm->trans_wm,
+				  &wm->wm[0], &wm_params);
+
+	if (DISPLAY_VER(i915) >= 12) {
+		tgl_compute_sagv_wm(crtc_state, plane, &wm_params, wm);
+
+		skl_compute_transition_wm(i915, &wm->sagv.trans_wm,
+					  &wm->sagv.wm0, &wm_params);
+	}
+
+	return 0;
+}
+
+static int skl_build_plane_wm_uv(struct intel_crtc_state *crtc_state,
+				 const struct intel_plane_state *plane_state,
+				 struct intel_plane *plane)
+{
+	struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane->id];
+	struct skl_wm_params wm_params;
+	int ret;
+
+	wm->is_planar = true;
+
+	/* uv plane watermarks must also be validated for NV12/Planar */
+	ret = skl_compute_plane_wm_params(crtc_state, plane_state,
+					  &wm_params, 1);
+	if (ret)
+		return ret;
+
+	skl_compute_wm_levels(crtc_state, plane, &wm_params, wm->uv_wm);
+
+	return 0;
+}
+
+static int skl_build_plane_wm(struct intel_crtc_state *crtc_state,
+			      const struct intel_plane_state *plane_state)
+{
+	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
+	enum plane_id plane_id = plane->id;
+	struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane_id];
+	const struct drm_framebuffer *fb = plane_state->hw.fb;
+	int ret;
+
+	memset(wm, 0, sizeof(*wm));
+
+	if (!intel_wm_plane_visible(crtc_state, plane_state))
+		return 0;
+
+	ret = skl_build_plane_wm_single(crtc_state, plane_state,
+					plane, 0);
+	if (ret)
+		return ret;
+
+	if (fb->format->is_yuv && fb->format->num_planes > 1) {
+		ret = skl_build_plane_wm_uv(crtc_state, plane_state,
+					    plane);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int icl_build_plane_wm(struct intel_crtc_state *crtc_state,
+			      const struct intel_plane_state *plane_state)
+{
+	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
+	struct drm_i915_private *i915 = to_i915(plane->base.dev);
+	enum plane_id plane_id = plane->id;
+	struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane_id];
+	int ret;
+
+	/* Watermarks calculated in master */
+	if (plane_state->planar_slave)
+		return 0;
+
+	memset(wm, 0, sizeof(*wm));
+
+	if (plane_state->planar_linked_plane) {
+		const struct drm_framebuffer *fb = plane_state->hw.fb;
+
+		drm_WARN_ON(&i915->drm,
+			    !intel_wm_plane_visible(crtc_state, plane_state));
+		drm_WARN_ON(&i915->drm, !fb->format->is_yuv ||
+			    fb->format->num_planes == 1);
+
+		ret = skl_build_plane_wm_single(crtc_state, plane_state,
+						plane_state->planar_linked_plane, 0);
+		if (ret)
+			return ret;
+
+		ret = skl_build_plane_wm_single(crtc_state, plane_state,
+						plane, 1);
+		if (ret)
+			return ret;
+	} else if (intel_wm_plane_visible(crtc_state, plane_state)) {
+		ret = skl_build_plane_wm_single(crtc_state, plane_state,
+						plane, 0);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int skl_build_pipe_wm(struct intel_atomic_state *state,
+			     struct intel_crtc *crtc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	const struct intel_plane_state *plane_state;
+	struct intel_plane *plane;
+	int ret, i;
+
+	for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
+		/*
+		 * FIXME should perhaps check {old,new}_plane_crtc->hw.crtc
+		 * instead but we don't populate that correctly for NV12 Y
+		 * planes so for now hack this.
+		 */
+		if (plane->pipe != crtc->pipe)
+			continue;
+
+		if (DISPLAY_VER(i915) >= 11)
+			ret = icl_build_plane_wm(crtc_state, plane_state);
+		else
+			ret = skl_build_plane_wm(crtc_state, plane_state);
+		if (ret)
+			return ret;
+	}
+
+	crtc_state->wm.skl.optimal = crtc_state->wm.skl.raw;
+
+	return 0;
+}
+
+static void skl_ddb_entry_write(struct drm_i915_private *i915,
+				i915_reg_t reg,
+				const struct skl_ddb_entry *entry)
+{
+	if (entry->end)
+		intel_de_write_fw(i915, reg,
+				  PLANE_BUF_END(entry->end - 1) |
+				  PLANE_BUF_START(entry->start));
+	else
+		intel_de_write_fw(i915, reg, 0);
+}
+
+static void skl_write_wm_level(struct drm_i915_private *i915,
+			       i915_reg_t reg,
+			       const struct skl_wm_level *level)
+{
+	u32 val = 0;
+
+	if (level->enable)
+		val |= PLANE_WM_EN;
+	if (level->ignore_lines)
+		val |= PLANE_WM_IGNORE_LINES;
+	val |= REG_FIELD_PREP(PLANE_WM_BLOCKS_MASK, level->blocks);
+	val |= REG_FIELD_PREP(PLANE_WM_LINES_MASK, level->lines);
+
+	intel_de_write_fw(i915, reg, val);
+}
+
+void skl_write_plane_wm(struct intel_plane *plane,
+			const struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(plane->base.dev);
+	int level, max_level = ilk_wm_max_level(i915);
+	enum plane_id plane_id = plane->id;
+	enum pipe pipe = plane->pipe;
+	const struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal;
+	const struct skl_ddb_entry *ddb =
+		&crtc_state->wm.skl.plane_ddb[plane_id];
+	const struct skl_ddb_entry *ddb_y =
+		&crtc_state->wm.skl.plane_ddb_y[plane_id];
+
+	for (level = 0; level <= max_level; level++)
+		skl_write_wm_level(i915, PLANE_WM(pipe, plane_id, level),
+				   skl_plane_wm_level(pipe_wm, plane_id, level));
+
+	skl_write_wm_level(i915, PLANE_WM_TRANS(pipe, plane_id),
+			   skl_plane_trans_wm(pipe_wm, plane_id));
+
+	if (HAS_HW_SAGV_WM(i915)) {
+		const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
+
+		skl_write_wm_level(i915, PLANE_WM_SAGV(pipe, plane_id),
+				   &wm->sagv.wm0);
+		skl_write_wm_level(i915, PLANE_WM_SAGV_TRANS(pipe, plane_id),
+				   &wm->sagv.trans_wm);
+	}
+
+	skl_ddb_entry_write(i915,
+			    PLANE_BUF_CFG(pipe, plane_id), ddb);
+
+	if (DISPLAY_VER(i915) < 11)
+		skl_ddb_entry_write(i915,
+				    PLANE_NV12_BUF_CFG(pipe, plane_id), ddb_y);
+}
+
+void skl_write_cursor_wm(struct intel_plane *plane,
+			 const struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(plane->base.dev);
+	int level, max_level = ilk_wm_max_level(i915);
+	enum plane_id plane_id = plane->id;
+	enum pipe pipe = plane->pipe;
+	const struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal;
+	const struct skl_ddb_entry *ddb =
+		&crtc_state->wm.skl.plane_ddb[plane_id];
+
+	for (level = 0; level <= max_level; level++)
+		skl_write_wm_level(i915, CUR_WM(pipe, level),
+				   skl_plane_wm_level(pipe_wm, plane_id, level));
+
+	skl_write_wm_level(i915, CUR_WM_TRANS(pipe),
+			   skl_plane_trans_wm(pipe_wm, plane_id));
+
+	if (HAS_HW_SAGV_WM(i915)) {
+		const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
+
+		skl_write_wm_level(i915, CUR_WM_SAGV(pipe),
+				   &wm->sagv.wm0);
+		skl_write_wm_level(i915, CUR_WM_SAGV_TRANS(pipe),
+				   &wm->sagv.trans_wm);
+	}
+
+	skl_ddb_entry_write(i915, CUR_BUF_CFG(pipe), ddb);
+}
+
+static bool skl_wm_level_equals(const struct skl_wm_level *l1,
+				const struct skl_wm_level *l2)
+{
+	return l1->enable == l2->enable &&
+		l1->ignore_lines == l2->ignore_lines &&
+		l1->lines == l2->lines &&
+		l1->blocks == l2->blocks;
+}
+
+static bool skl_plane_wm_equals(struct drm_i915_private *i915,
+				const struct skl_plane_wm *wm1,
+				const struct skl_plane_wm *wm2)
+{
+	int level, max_level = ilk_wm_max_level(i915);
+
+	for (level = 0; level <= max_level; level++) {
+		/*
+		 * We don't check uv_wm as the hardware doesn't actually
+		 * use it. It only gets used for calculating the required
+		 * ddb allocation.
+		 */
+		if (!skl_wm_level_equals(&wm1->wm[level], &wm2->wm[level]))
+			return false;
+	}
+
+	return skl_wm_level_equals(&wm1->trans_wm, &wm2->trans_wm) &&
+		skl_wm_level_equals(&wm1->sagv.wm0, &wm2->sagv.wm0) &&
+		skl_wm_level_equals(&wm1->sagv.trans_wm, &wm2->sagv.trans_wm);
+}
+
+static bool skl_ddb_entries_overlap(const struct skl_ddb_entry *a,
+				    const struct skl_ddb_entry *b)
+{
+	return a->start < b->end && b->start < a->end;
+}
+
+static void skl_ddb_entry_union(struct skl_ddb_entry *a,
+				const struct skl_ddb_entry *b)
+{
+	if (a->end && b->end) {
+		a->start = min(a->start, b->start);
+		a->end = max(a->end, b->end);
+	} else if (b->end) {
+		a->start = b->start;
+		a->end = b->end;
+	}
+}
+
+bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
+				 const struct skl_ddb_entry *entries,
+				 int num_entries, int ignore_idx)
+{
+	int i;
+
+	for (i = 0; i < num_entries; i++) {
+		if (i != ignore_idx &&
+		    skl_ddb_entries_overlap(ddb, &entries[i]))
+			return true;
+	}
+
+	return false;
+}
+
+static int
+skl_ddb_add_affected_planes(const struct intel_crtc_state *old_crtc_state,
+			    struct intel_crtc_state *new_crtc_state)
+{
+	struct intel_atomic_state *state = to_intel_atomic_state(new_crtc_state->uapi.state);
+	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct intel_plane *plane;
+
+	for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) {
+		struct intel_plane_state *plane_state;
+		enum plane_id plane_id = plane->id;
+
+		if (skl_ddb_entry_equal(&old_crtc_state->wm.skl.plane_ddb[plane_id],
+					&new_crtc_state->wm.skl.plane_ddb[plane_id]) &&
+		    skl_ddb_entry_equal(&old_crtc_state->wm.skl.plane_ddb_y[plane_id],
+					&new_crtc_state->wm.skl.plane_ddb_y[plane_id]))
+			continue;
+
+		plane_state = intel_atomic_get_plane_state(state, plane);
+		if (IS_ERR(plane_state))
+			return PTR_ERR(plane_state);
+
+		new_crtc_state->update_planes |= BIT(plane_id);
+	}
+
+	return 0;
+}
+
+static u8 intel_dbuf_enabled_slices(const struct intel_dbuf_state *dbuf_state)
+{
+	struct drm_i915_private *i915 = to_i915(dbuf_state->base.state->base.dev);
+	u8 enabled_slices;
+	enum pipe pipe;
+
+	/*
+	 * FIXME: For now we always enable slice S1 as per
+	 * the Bspec display initialization sequence.
+	 */
+	enabled_slices = BIT(DBUF_S1);
+
+	for_each_pipe(i915, pipe)
+		enabled_slices |= dbuf_state->slices[pipe];
+
+	return enabled_slices;
+}
+
+static int
+skl_compute_ddb(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_dbuf_state *old_dbuf_state;
+	struct intel_dbuf_state *new_dbuf_state = NULL;
+	const struct intel_crtc_state *old_crtc_state;
+	struct intel_crtc_state *new_crtc_state;
+	struct intel_crtc *crtc;
+	int ret, i;
+
+	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
+		new_dbuf_state = intel_atomic_get_dbuf_state(state);
+		if (IS_ERR(new_dbuf_state))
+			return PTR_ERR(new_dbuf_state);
+
+		old_dbuf_state = intel_atomic_get_old_dbuf_state(state);
+		break;
+	}
+
+	if (!new_dbuf_state)
+		return 0;
+
+	new_dbuf_state->active_pipes =
+		intel_calc_active_pipes(state, old_dbuf_state->active_pipes);
+
+	if (old_dbuf_state->active_pipes != new_dbuf_state->active_pipes) {
+		ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
+		if (ret)
+			return ret;
+	}
+
+	if (HAS_MBUS_JOINING(i915))
+		new_dbuf_state->joined_mbus =
+			adlp_check_mbus_joined(new_dbuf_state->active_pipes);
+
+	for_each_intel_crtc(&i915->drm, crtc) {
+		enum pipe pipe = crtc->pipe;
+
+		new_dbuf_state->slices[pipe] =
+			skl_compute_dbuf_slices(crtc, new_dbuf_state->active_pipes,
+						new_dbuf_state->joined_mbus);
+
+		if (old_dbuf_state->slices[pipe] == new_dbuf_state->slices[pipe])
+			continue;
+
+		ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
+		if (ret)
+			return ret;
+	}
+
+	new_dbuf_state->enabled_slices = intel_dbuf_enabled_slices(new_dbuf_state);
+
+	if (old_dbuf_state->enabled_slices != new_dbuf_state->enabled_slices ||
+	    old_dbuf_state->joined_mbus != new_dbuf_state->joined_mbus) {
+		ret = intel_atomic_serialize_global_state(&new_dbuf_state->base);
+		if (ret)
+			return ret;
+
+		if (old_dbuf_state->joined_mbus != new_dbuf_state->joined_mbus) {
+			/* TODO: Implement vblank synchronized MBUS joining changes */
+			ret = intel_modeset_all_pipes(state);
+			if (ret)
+				return ret;
+		}
+
+		drm_dbg_kms(&i915->drm,
+			    "Enabled dbuf slices 0x%x -> 0x%x (total dbuf slices 0x%x), mbus joined? %s->%s\n",
+			    old_dbuf_state->enabled_slices,
+			    new_dbuf_state->enabled_slices,
+			    INTEL_INFO(i915)->display.dbuf.slice_mask,
+			    str_yes_no(old_dbuf_state->joined_mbus),
+			    str_yes_no(new_dbuf_state->joined_mbus));
+	}
+
+	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
+		enum pipe pipe = crtc->pipe;
+
+		new_dbuf_state->weight[pipe] = intel_crtc_ddb_weight(new_crtc_state);
+
+		if (old_dbuf_state->weight[pipe] == new_dbuf_state->weight[pipe])
+			continue;
+
+		ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
+		if (ret)
+			return ret;
+	}
+
+	for_each_intel_crtc(&i915->drm, crtc) {
+		ret = skl_crtc_allocate_ddb(state, crtc);
+		if (ret)
+			return ret;
+	}
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		ret = skl_crtc_allocate_plane_ddb(state, crtc);
+		if (ret)
+			return ret;
+
+		ret = skl_ddb_add_affected_planes(old_crtc_state,
+						  new_crtc_state);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static char enast(bool enable)
+{
+	return enable ? '*' : ' ';
+}
+
+static void
+skl_print_wm_changes(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_crtc_state *old_crtc_state;
+	const struct intel_crtc_state *new_crtc_state;
+	struct intel_plane *plane;
+	struct intel_crtc *crtc;
+	int i;
+
+	if (!drm_debug_enabled(DRM_UT_KMS))
+		return;
+
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    new_crtc_state, i) {
+		const struct skl_pipe_wm *old_pipe_wm, *new_pipe_wm;
+
+		old_pipe_wm = &old_crtc_state->wm.skl.optimal;
+		new_pipe_wm = &new_crtc_state->wm.skl.optimal;
+
+		for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) {
+			enum plane_id plane_id = plane->id;
+			const struct skl_ddb_entry *old, *new;
+
+			old = &old_crtc_state->wm.skl.plane_ddb[plane_id];
+			new = &new_crtc_state->wm.skl.plane_ddb[plane_id];
+
+			if (skl_ddb_entry_equal(old, new))
+				continue;
+
+			drm_dbg_kms(&i915->drm,
+				    "[PLANE:%d:%s] ddb (%4d - %4d) -> (%4d - %4d), size %4d -> %4d\n",
+				    plane->base.base.id, plane->base.name,
+				    old->start, old->end, new->start, new->end,
+				    skl_ddb_entry_size(old), skl_ddb_entry_size(new));
+		}
+
+		for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) {
+			enum plane_id plane_id = plane->id;
+			const struct skl_plane_wm *old_wm, *new_wm;
+
+			old_wm = &old_pipe_wm->planes[plane_id];
+			new_wm = &new_pipe_wm->planes[plane_id];
+
+			if (skl_plane_wm_equals(i915, old_wm, new_wm))
+				continue;
+
+			drm_dbg_kms(&i915->drm,
+				    "[PLANE:%d:%s]   level %cwm0,%cwm1,%cwm2,%cwm3,%cwm4,%cwm5,%cwm6,%cwm7,%ctwm,%cswm,%cstwm"
+				    " -> %cwm0,%cwm1,%cwm2,%cwm3,%cwm4,%cwm5,%cwm6,%cwm7,%ctwm,%cswm,%cstwm\n",
+				    plane->base.base.id, plane->base.name,
+				    enast(old_wm->wm[0].enable), enast(old_wm->wm[1].enable),
+				    enast(old_wm->wm[2].enable), enast(old_wm->wm[3].enable),
+				    enast(old_wm->wm[4].enable), enast(old_wm->wm[5].enable),
+				    enast(old_wm->wm[6].enable), enast(old_wm->wm[7].enable),
+				    enast(old_wm->trans_wm.enable),
+				    enast(old_wm->sagv.wm0.enable),
+				    enast(old_wm->sagv.trans_wm.enable),
+				    enast(new_wm->wm[0].enable), enast(new_wm->wm[1].enable),
+				    enast(new_wm->wm[2].enable), enast(new_wm->wm[3].enable),
+				    enast(new_wm->wm[4].enable), enast(new_wm->wm[5].enable),
+				    enast(new_wm->wm[6].enable), enast(new_wm->wm[7].enable),
+				    enast(new_wm->trans_wm.enable),
+				    enast(new_wm->sagv.wm0.enable),
+				    enast(new_wm->sagv.trans_wm.enable));
+
+			drm_dbg_kms(&i915->drm,
+				    "[PLANE:%d:%s]   lines %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%4d"
+				      " -> %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%4d\n",
+				    plane->base.base.id, plane->base.name,
+				    enast(old_wm->wm[0].ignore_lines), old_wm->wm[0].lines,
+				    enast(old_wm->wm[1].ignore_lines), old_wm->wm[1].lines,
+				    enast(old_wm->wm[2].ignore_lines), old_wm->wm[2].lines,
+				    enast(old_wm->wm[3].ignore_lines), old_wm->wm[3].lines,
+				    enast(old_wm->wm[4].ignore_lines), old_wm->wm[4].lines,
+				    enast(old_wm->wm[5].ignore_lines), old_wm->wm[5].lines,
+				    enast(old_wm->wm[6].ignore_lines), old_wm->wm[6].lines,
+				    enast(old_wm->wm[7].ignore_lines), old_wm->wm[7].lines,
+				    enast(old_wm->trans_wm.ignore_lines), old_wm->trans_wm.lines,
+				    enast(old_wm->sagv.wm0.ignore_lines), old_wm->sagv.wm0.lines,
+				    enast(old_wm->sagv.trans_wm.ignore_lines), old_wm->sagv.trans_wm.lines,
+				    enast(new_wm->wm[0].ignore_lines), new_wm->wm[0].lines,
+				    enast(new_wm->wm[1].ignore_lines), new_wm->wm[1].lines,
+				    enast(new_wm->wm[2].ignore_lines), new_wm->wm[2].lines,
+				    enast(new_wm->wm[3].ignore_lines), new_wm->wm[3].lines,
+				    enast(new_wm->wm[4].ignore_lines), new_wm->wm[4].lines,
+				    enast(new_wm->wm[5].ignore_lines), new_wm->wm[5].lines,
+				    enast(new_wm->wm[6].ignore_lines), new_wm->wm[6].lines,
+				    enast(new_wm->wm[7].ignore_lines), new_wm->wm[7].lines,
+				    enast(new_wm->trans_wm.ignore_lines), new_wm->trans_wm.lines,
+				    enast(new_wm->sagv.wm0.ignore_lines), new_wm->sagv.wm0.lines,
+				    enast(new_wm->sagv.trans_wm.ignore_lines), new_wm->sagv.trans_wm.lines);
+
+			drm_dbg_kms(&i915->drm,
+				    "[PLANE:%d:%s]  blocks %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%5d"
+				    " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%5d\n",
+				    plane->base.base.id, plane->base.name,
+				    old_wm->wm[0].blocks, old_wm->wm[1].blocks,
+				    old_wm->wm[2].blocks, old_wm->wm[3].blocks,
+				    old_wm->wm[4].blocks, old_wm->wm[5].blocks,
+				    old_wm->wm[6].blocks, old_wm->wm[7].blocks,
+				    old_wm->trans_wm.blocks,
+				    old_wm->sagv.wm0.blocks,
+				    old_wm->sagv.trans_wm.blocks,
+				    new_wm->wm[0].blocks, new_wm->wm[1].blocks,
+				    new_wm->wm[2].blocks, new_wm->wm[3].blocks,
+				    new_wm->wm[4].blocks, new_wm->wm[5].blocks,
+				    new_wm->wm[6].blocks, new_wm->wm[7].blocks,
+				    new_wm->trans_wm.blocks,
+				    new_wm->sagv.wm0.blocks,
+				    new_wm->sagv.trans_wm.blocks);
+
+			drm_dbg_kms(&i915->drm,
+				    "[PLANE:%d:%s] min_ddb %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%5d"
+				    " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%5d\n",
+				    plane->base.base.id, plane->base.name,
+				    old_wm->wm[0].min_ddb_alloc, old_wm->wm[1].min_ddb_alloc,
+				    old_wm->wm[2].min_ddb_alloc, old_wm->wm[3].min_ddb_alloc,
+				    old_wm->wm[4].min_ddb_alloc, old_wm->wm[5].min_ddb_alloc,
+				    old_wm->wm[6].min_ddb_alloc, old_wm->wm[7].min_ddb_alloc,
+				    old_wm->trans_wm.min_ddb_alloc,
+				    old_wm->sagv.wm0.min_ddb_alloc,
+				    old_wm->sagv.trans_wm.min_ddb_alloc,
+				    new_wm->wm[0].min_ddb_alloc, new_wm->wm[1].min_ddb_alloc,
+				    new_wm->wm[2].min_ddb_alloc, new_wm->wm[3].min_ddb_alloc,
+				    new_wm->wm[4].min_ddb_alloc, new_wm->wm[5].min_ddb_alloc,
+				    new_wm->wm[6].min_ddb_alloc, new_wm->wm[7].min_ddb_alloc,
+				    new_wm->trans_wm.min_ddb_alloc,
+				    new_wm->sagv.wm0.min_ddb_alloc,
+				    new_wm->sagv.trans_wm.min_ddb_alloc);
+		}
+	}
+}
+
+static bool skl_plane_selected_wm_equals(struct intel_plane *plane,
+					 const struct skl_pipe_wm *old_pipe_wm,
+					 const struct skl_pipe_wm *new_pipe_wm)
+{
+	struct drm_i915_private *i915 = to_i915(plane->base.dev);
+	int level, max_level = ilk_wm_max_level(i915);
+
+	for (level = 0; level <= max_level; level++) {
+		/*
+		 * We don't check uv_wm as the hardware doesn't actually
+		 * use it. It only gets used for calculating the required
+		 * ddb allocation.
+		 */
+		if (!skl_wm_level_equals(skl_plane_wm_level(old_pipe_wm, plane->id, level),
+					 skl_plane_wm_level(new_pipe_wm, plane->id, level)))
+			return false;
+	}
+
+	if (HAS_HW_SAGV_WM(i915)) {
+		const struct skl_plane_wm *old_wm = &old_pipe_wm->planes[plane->id];
+		const struct skl_plane_wm *new_wm = &new_pipe_wm->planes[plane->id];
+
+		if (!skl_wm_level_equals(&old_wm->sagv.wm0, &new_wm->sagv.wm0) ||
+		    !skl_wm_level_equals(&old_wm->sagv.trans_wm, &new_wm->sagv.trans_wm))
+			return false;
+	}
+
+	return skl_wm_level_equals(skl_plane_trans_wm(old_pipe_wm, plane->id),
+				   skl_plane_trans_wm(new_pipe_wm, plane->id));
+}
+
+/*
+ * To make sure the cursor watermark registers are always consistent
+ * with our computed state the following scenario needs special
+ * treatment:
+ *
+ * 1. enable cursor
+ * 2. move cursor entirely offscreen
+ * 3. disable cursor
+ *
+ * Step 2. does call .disable_plane() but does not zero the watermarks
+ * (since we consider an offscreen cursor still active for the purposes
+ * of watermarks). Step 3. would not normally call .disable_plane()
+ * because the actual plane visibility isn't changing, and we don't
+ * deallocate the cursor ddb until the pipe gets disabled. So we must
+ * force step 3. to call .disable_plane() to update the watermark
+ * registers properly.
+ *
+ * Other planes do not suffer from this issues as their watermarks are
+ * calculated based on the actual plane visibility. The only time this
+ * can trigger for the other planes is during the initial readout as the
+ * default value of the watermarks registers is not zero.
+ */
+static int skl_wm_add_affected_planes(struct intel_atomic_state *state,
+				      struct intel_crtc *crtc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	const struct intel_crtc_state *old_crtc_state =
+		intel_atomic_get_old_crtc_state(state, crtc);
+	struct intel_crtc_state *new_crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	struct intel_plane *plane;
+
+	for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) {
+		struct intel_plane_state *plane_state;
+		enum plane_id plane_id = plane->id;
+
+		/*
+		 * Force a full wm update for every plane on modeset.
+		 * Required because the reset value of the wm registers
+		 * is non-zero, whereas we want all disabled planes to
+		 * have zero watermarks. So if we turn off the relevant
+		 * power well the hardware state will go out of sync
+		 * with the software state.
+		 */
+		if (!drm_atomic_crtc_needs_modeset(&new_crtc_state->uapi) &&
+		    skl_plane_selected_wm_equals(plane,
+						 &old_crtc_state->wm.skl.optimal,
+						 &new_crtc_state->wm.skl.optimal))
+			continue;
+
+		plane_state = intel_atomic_get_plane_state(state, plane);
+		if (IS_ERR(plane_state))
+			return PTR_ERR(plane_state);
+
+		new_crtc_state->update_planes |= BIT(plane_id);
+	}
+
+	return 0;
+}
+
+static int
+skl_compute_wm(struct intel_atomic_state *state)
+{
+	struct intel_crtc *crtc;
+	struct intel_crtc_state *new_crtc_state;
+	int ret, i;
+
+	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
+		ret = skl_build_pipe_wm(state, crtc);
+		if (ret)
+			return ret;
+	}
+
+	ret = skl_compute_ddb(state);
+	if (ret)
+		return ret;
+
+	ret = intel_compute_sagv_mask(state);
+	if (ret)
+		return ret;
+
+	/*
+	 * skl_compute_ddb() will have adjusted the final watermarks
+	 * based on how much ddb is available. Now we can actually
+	 * check if the final watermarks changed.
+	 */
+	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
+		ret = skl_wm_add_affected_planes(state, crtc);
+		if (ret)
+			return ret;
+	}
+
+	skl_print_wm_changes(state);
+
+	return 0;
+}
+
+static void skl_wm_level_from_reg_val(u32 val, struct skl_wm_level *level)
+{
+	level->enable = val & PLANE_WM_EN;
+	level->ignore_lines = val & PLANE_WM_IGNORE_LINES;
+	level->blocks = REG_FIELD_GET(PLANE_WM_BLOCKS_MASK, val);
+	level->lines = REG_FIELD_GET(PLANE_WM_LINES_MASK, val);
+}
+
+static void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
+				     struct skl_pipe_wm *out)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
+	int level, max_level;
+	enum plane_id plane_id;
+	u32 val;
+
+	max_level = ilk_wm_max_level(i915);
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		struct skl_plane_wm *wm = &out->planes[plane_id];
+
+		for (level = 0; level <= max_level; level++) {
+			if (plane_id != PLANE_CURSOR)
+				val = intel_uncore_read(&i915->uncore, PLANE_WM(pipe, plane_id, level));
+			else
+				val = intel_uncore_read(&i915->uncore, CUR_WM(pipe, level));
+
+			skl_wm_level_from_reg_val(val, &wm->wm[level]);
+		}
+
+		if (plane_id != PLANE_CURSOR)
+			val = intel_uncore_read(&i915->uncore, PLANE_WM_TRANS(pipe, plane_id));
+		else
+			val = intel_uncore_read(&i915->uncore, CUR_WM_TRANS(pipe));
+
+		skl_wm_level_from_reg_val(val, &wm->trans_wm);
+
+		if (HAS_HW_SAGV_WM(i915)) {
+			if (plane_id != PLANE_CURSOR)
+				val = intel_uncore_read(&i915->uncore,
+							PLANE_WM_SAGV(pipe, plane_id));
+			else
+				val = intel_uncore_read(&i915->uncore,
+							CUR_WM_SAGV(pipe));
+
+			skl_wm_level_from_reg_val(val, &wm->sagv.wm0);
+
+			if (plane_id != PLANE_CURSOR)
+				val = intel_uncore_read(&i915->uncore,
+							PLANE_WM_SAGV_TRANS(pipe, plane_id));
+			else
+				val = intel_uncore_read(&i915->uncore,
+							CUR_WM_SAGV_TRANS(pipe));
+
+			skl_wm_level_from_reg_val(val, &wm->sagv.trans_wm);
+		} else if (DISPLAY_VER(i915) >= 12) {
+			wm->sagv.wm0 = wm->wm[0];
+			wm->sagv.trans_wm = wm->trans_wm;
+		}
+	}
+}
+
+void skl_wm_get_hw_state(struct drm_i915_private *i915)
+{
+	struct intel_dbuf_state *dbuf_state =
+		to_intel_dbuf_state(i915->display.dbuf.obj.state);
+	struct intel_crtc *crtc;
+
+	if (HAS_MBUS_JOINING(i915))
+		dbuf_state->joined_mbus = intel_de_read(i915, MBUS_CTL) & MBUS_JOIN;
+
+	for_each_intel_crtc(&i915->drm, crtc) {
+		struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+		enum pipe pipe = crtc->pipe;
+		unsigned int mbus_offset;
+		enum plane_id plane_id;
+		u8 slices;
+
+		memset(&crtc_state->wm.skl.optimal, 0,
+		       sizeof(crtc_state->wm.skl.optimal));
+		if (crtc_state->hw.active)
+			skl_pipe_wm_get_hw_state(crtc, &crtc_state->wm.skl.optimal);
+		crtc_state->wm.skl.raw = crtc_state->wm.skl.optimal;
+
+		memset(&dbuf_state->ddb[pipe], 0, sizeof(dbuf_state->ddb[pipe]));
+
+		for_each_plane_id_on_crtc(crtc, plane_id) {
+			struct skl_ddb_entry *ddb =
+				&crtc_state->wm.skl.plane_ddb[plane_id];
+			struct skl_ddb_entry *ddb_y =
+				&crtc_state->wm.skl.plane_ddb_y[plane_id];
+
+			if (!crtc_state->hw.active)
+				continue;
+
+			skl_ddb_get_hw_plane_state(i915, crtc->pipe,
+						   plane_id, ddb, ddb_y);
+
+			skl_ddb_entry_union(&dbuf_state->ddb[pipe], ddb);
+			skl_ddb_entry_union(&dbuf_state->ddb[pipe], ddb_y);
+		}
+
+		dbuf_state->weight[pipe] = intel_crtc_ddb_weight(crtc_state);
+
+		/*
+		 * Used for checking overlaps, so we need absolute
+		 * offsets instead of MBUS relative offsets.
+		 */
+		slices = skl_compute_dbuf_slices(crtc, dbuf_state->active_pipes,
+						 dbuf_state->joined_mbus);
+		mbus_offset = mbus_ddb_offset(i915, slices);
+		crtc_state->wm.skl.ddb.start = mbus_offset + dbuf_state->ddb[pipe].start;
+		crtc_state->wm.skl.ddb.end = mbus_offset + dbuf_state->ddb[pipe].end;
+
+		/* The slices actually used by the planes on the pipe */
+		dbuf_state->slices[pipe] =
+			skl_ddb_dbuf_slice_mask(i915, &crtc_state->wm.skl.ddb);
+
+		drm_dbg_kms(&i915->drm,
+			    "[CRTC:%d:%s] dbuf slices 0x%x, ddb (%d - %d), active pipes 0x%x, mbus joined: %s\n",
+			    crtc->base.base.id, crtc->base.name,
+			    dbuf_state->slices[pipe], dbuf_state->ddb[pipe].start,
+			    dbuf_state->ddb[pipe].end, dbuf_state->active_pipes,
+			    str_yes_no(dbuf_state->joined_mbus));
+	}
+
+	dbuf_state->enabled_slices = i915->display.dbuf.enabled_slices;
+}
+
+static bool skl_dbuf_is_misconfigured(struct drm_i915_private *i915)
+{
+	const struct intel_dbuf_state *dbuf_state =
+		to_intel_dbuf_state(i915->display.dbuf.obj.state);
+	struct skl_ddb_entry entries[I915_MAX_PIPES] = {};
+	struct intel_crtc *crtc;
+
+	for_each_intel_crtc(&i915->drm, crtc) {
+		const struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+
+		entries[crtc->pipe] = crtc_state->wm.skl.ddb;
+	}
+
+	for_each_intel_crtc(&i915->drm, crtc) {
+		const struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+		u8 slices;
+
+		slices = skl_compute_dbuf_slices(crtc, dbuf_state->active_pipes,
+						 dbuf_state->joined_mbus);
+		if (dbuf_state->slices[crtc->pipe] & ~slices)
+			return true;
+
+		if (skl_ddb_allocation_overlaps(&crtc_state->wm.skl.ddb, entries,
+						I915_MAX_PIPES, crtc->pipe))
+			return true;
+	}
+
+	return false;
+}
+
+void skl_wm_sanitize(struct drm_i915_private *i915)
+{
+	struct intel_crtc *crtc;
+
+	/*
+	 * On TGL/RKL (at least) the BIOS likes to assign the planes
+	 * to the wrong DBUF slices. This will cause an infinite loop
+	 * in skl_commit_modeset_enables() as it can't find a way to
+	 * transition between the old bogus DBUF layout to the new
+	 * proper DBUF layout without DBUF allocation overlaps between
+	 * the planes (which cannot be allowed or else the hardware
+	 * may hang). If we detect a bogus DBUF layout just turn off
+	 * all the planes so that skl_commit_modeset_enables() can
+	 * simply ignore them.
+	 */
+	if (!skl_dbuf_is_misconfigured(i915))
+		return;
+
+	drm_dbg_kms(&i915->drm, "BIOS has misprogrammed the DBUF, disabling all planes\n");
+
+	for_each_intel_crtc(&i915->drm, crtc) {
+		struct intel_plane *plane = to_intel_plane(crtc->base.primary);
+		const struct intel_plane_state *plane_state =
+			to_intel_plane_state(plane->base.state);
+		struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+
+		if (plane_state->uapi.visible)
+			intel_plane_disable_noatomic(crtc, plane);
+
+		drm_WARN_ON(&i915->drm, crtc_state->active_planes != 0);
+
+		memset(&crtc_state->wm.skl.ddb, 0, sizeof(crtc_state->wm.skl.ddb));
+	}
+}
+
+void intel_wm_state_verify(struct intel_crtc *crtc,
+			   struct intel_crtc_state *new_crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct skl_hw_state {
+		struct skl_ddb_entry ddb[I915_MAX_PLANES];
+		struct skl_ddb_entry ddb_y[I915_MAX_PLANES];
+		struct skl_pipe_wm wm;
+	} *hw;
+	const struct skl_pipe_wm *sw_wm = &new_crtc_state->wm.skl.optimal;
+	int level, max_level = ilk_wm_max_level(i915);
+	struct intel_plane *plane;
+	u8 hw_enabled_slices;
+
+	if (DISPLAY_VER(i915) < 9 || !new_crtc_state->hw.active)
+		return;
+
+	hw = kzalloc(sizeof(*hw), GFP_KERNEL);
+	if (!hw)
+		return;
+
+	skl_pipe_wm_get_hw_state(crtc, &hw->wm);
+
+	skl_pipe_ddb_get_hw_state(crtc, hw->ddb, hw->ddb_y);
+
+	hw_enabled_slices = intel_enabled_dbuf_slices_mask(i915);
+
+	if (DISPLAY_VER(i915) >= 11 &&
+	    hw_enabled_slices != i915->display.dbuf.enabled_slices)
+		drm_err(&i915->drm,
+			"mismatch in DBUF Slices (expected 0x%x, got 0x%x)\n",
+			i915->display.dbuf.enabled_slices,
+			hw_enabled_slices);
+
+	for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) {
+		const struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
+		const struct skl_wm_level *hw_wm_level, *sw_wm_level;
+
+		/* Watermarks */
+		for (level = 0; level <= max_level; level++) {
+			hw_wm_level = &hw->wm.planes[plane->id].wm[level];
+			sw_wm_level = skl_plane_wm_level(sw_wm, plane->id, level);
+
+			if (skl_wm_level_equals(hw_wm_level, sw_wm_level))
+				continue;
+
+			drm_err(&i915->drm,
+				"[PLANE:%d:%s] mismatch in WM%d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+				plane->base.base.id, plane->base.name, level,
+				sw_wm_level->enable,
+				sw_wm_level->blocks,
+				sw_wm_level->lines,
+				hw_wm_level->enable,
+				hw_wm_level->blocks,
+				hw_wm_level->lines);
+		}
+
+		hw_wm_level = &hw->wm.planes[plane->id].trans_wm;
+		sw_wm_level = skl_plane_trans_wm(sw_wm, plane->id);
+
+		if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+			drm_err(&i915->drm,
+				"[PLANE:%d:%s] mismatch in trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+				plane->base.base.id, plane->base.name,
+				sw_wm_level->enable,
+				sw_wm_level->blocks,
+				sw_wm_level->lines,
+				hw_wm_level->enable,
+				hw_wm_level->blocks,
+				hw_wm_level->lines);
+		}
+
+		hw_wm_level = &hw->wm.planes[plane->id].sagv.wm0;
+		sw_wm_level = &sw_wm->planes[plane->id].sagv.wm0;
+
+		if (HAS_HW_SAGV_WM(i915) &&
+		    !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+			drm_err(&i915->drm,
+				"[PLANE:%d:%s] mismatch in SAGV WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+				plane->base.base.id, plane->base.name,
+				sw_wm_level->enable,
+				sw_wm_level->blocks,
+				sw_wm_level->lines,
+				hw_wm_level->enable,
+				hw_wm_level->blocks,
+				hw_wm_level->lines);
+		}
+
+		hw_wm_level = &hw->wm.planes[plane->id].sagv.trans_wm;
+		sw_wm_level = &sw_wm->planes[plane->id].sagv.trans_wm;
+
+		if (HAS_HW_SAGV_WM(i915) &&
+		    !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+			drm_err(&i915->drm,
+				"[PLANE:%d:%s] mismatch in SAGV trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+				plane->base.base.id, plane->base.name,
+				sw_wm_level->enable,
+				sw_wm_level->blocks,
+				sw_wm_level->lines,
+				hw_wm_level->enable,
+				hw_wm_level->blocks,
+				hw_wm_level->lines);
+		}
+
+		/* DDB */
+		hw_ddb_entry = &hw->ddb[PLANE_CURSOR];
+		sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb[PLANE_CURSOR];
+
+		if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
+			drm_err(&i915->drm,
+				"[PLANE:%d:%s] mismatch in DDB (expected (%u,%u), found (%u,%u))\n",
+				plane->base.base.id, plane->base.name,
+				sw_ddb_entry->start, sw_ddb_entry->end,
+				hw_ddb_entry->start, hw_ddb_entry->end);
+		}
+	}
+
+	kfree(hw);
+}
+
+bool skl_watermark_ipc_enabled(struct drm_i915_private *i915)
+{
+	return i915->display.wm.ipc_enabled;
+}
+
+void skl_watermark_ipc_update(struct drm_i915_private *i915)
+{
+	if (!HAS_IPC(i915))
+		return;
+
+	intel_uncore_rmw(&i915->uncore, DISP_ARB_CTL2, DISP_IPC_ENABLE,
+			 skl_watermark_ipc_enabled(i915) ? DISP_IPC_ENABLE : 0);
+}
+
+static bool skl_watermark_ipc_can_enable(struct drm_i915_private *i915)
+{
+	/* Display WA #0477 WaDisableIPC: skl */
+	if (IS_SKYLAKE(i915))
+		return false;
+
+	/* Display WA #1141: SKL:all KBL:all CFL */
+	if (IS_KABYLAKE(i915) ||
+	    IS_COFFEELAKE(i915) ||
+	    IS_COMETLAKE(i915))
+		return i915->dram_info.symmetric_memory;
+
+	return true;
+}
+
+void skl_watermark_ipc_init(struct drm_i915_private *i915)
+{
+	if (!HAS_IPC(i915))
+		return;
+
+	i915->display.wm.ipc_enabled = skl_watermark_ipc_can_enable(i915);
+
+	skl_watermark_ipc_update(i915);
+}
+
+static void
+adjust_wm_latency(struct drm_i915_private *i915,
+		  u16 wm[], int max_level, int read_latency)
+{
+	bool wm_lv_0_adjust_needed = i915->dram_info.wm_lv_0_adjust_needed;
+	int i, level;
+
+	/*
+	 * If a level n (n > 1) has a 0us latency, all levels m (m >= n)
+	 * need to be disabled. We make sure to sanitize the values out
+	 * of the punit to satisfy this requirement.
+	 */
+	for (level = 1; level <= max_level; level++) {
+		if (wm[level] == 0) {
+			for (i = level + 1; i <= max_level; i++)
+				wm[i] = 0;
+
+			max_level = level - 1;
+			break;
+		}
+	}
+
+	/*
+	 * WaWmMemoryReadLatency
+	 *
+	 * punit doesn't take into account the read latency so we need
+	 * to add proper adjustement to each valid level we retrieve
+	 * from the punit when level 0 response data is 0us.
+	 */
+	if (wm[0] == 0) {
+		for (level = 0; level <= max_level; level++)
+			wm[level] += read_latency;
+	}
+
+	/*
+	 * WA Level-0 adjustment for 16GB DIMMs: SKL+
+	 * If we could not get dimm info enable this WA to prevent from
+	 * any underrun. If not able to get Dimm info assume 16GB dimm
+	 * to avoid any underrun.
+	 */
+	if (wm_lv_0_adjust_needed)
+		wm[0] += 1;
+}
+
+static void mtl_read_wm_latency(struct drm_i915_private *i915, u16 wm[])
+{
+	struct intel_uncore *uncore = &i915->uncore;
+	int max_level = ilk_wm_max_level(i915);
+	u32 val;
+
+	val = intel_uncore_read(uncore, MTL_LATENCY_LP0_LP1);
+	wm[0] = REG_FIELD_GET(MTL_LATENCY_LEVEL_EVEN_MASK, val);
+	wm[1] = REG_FIELD_GET(MTL_LATENCY_LEVEL_ODD_MASK, val);
+
+	val = intel_uncore_read(uncore, MTL_LATENCY_LP2_LP3);
+	wm[2] = REG_FIELD_GET(MTL_LATENCY_LEVEL_EVEN_MASK, val);
+	wm[3] = REG_FIELD_GET(MTL_LATENCY_LEVEL_ODD_MASK, val);
+
+	val = intel_uncore_read(uncore, MTL_LATENCY_LP4_LP5);
+	wm[4] = REG_FIELD_GET(MTL_LATENCY_LEVEL_EVEN_MASK, val);
+	wm[5] = REG_FIELD_GET(MTL_LATENCY_LEVEL_ODD_MASK, val);
+
+	adjust_wm_latency(i915, wm, max_level, 6);
+}
+
+static void skl_read_wm_latency(struct drm_i915_private *i915, u16 wm[])
+{
+	int max_level = ilk_wm_max_level(i915);
+	int read_latency = DISPLAY_VER(i915) >= 12 ? 3 : 2;
+	int mult = IS_DG2(i915) ? 2 : 1;
+	u32 val;
+	int ret;
+
+	/* read the first set of memory latencies[0:3] */
+	val = 0; /* data0 to be programmed to 0 for first set */
+	ret = snb_pcode_read(&i915->uncore, GEN9_PCODE_READ_MEM_LATENCY, &val, NULL);
+	if (ret) {
+		drm_err(&i915->drm, "SKL Mailbox read error = %d\n", ret);
+		return;
+	}
+
+	wm[0] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_0_4_MASK, val) * mult;
+	wm[1] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_1_5_MASK, val) * mult;
+	wm[2] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_2_6_MASK, val) * mult;
+	wm[3] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_3_7_MASK, val) * mult;
+
+	/* read the second set of memory latencies[4:7] */
+	val = 1; /* data0 to be programmed to 1 for second set */
+	ret = snb_pcode_read(&i915->uncore, GEN9_PCODE_READ_MEM_LATENCY, &val, NULL);
+	if (ret) {
+		drm_err(&i915->drm, "SKL Mailbox read error = %d\n", ret);
+		return;
+	}
+
+	wm[4] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_0_4_MASK, val) * mult;
+	wm[5] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_1_5_MASK, val) * mult;
+	wm[6] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_2_6_MASK, val) * mult;
+	wm[7] = REG_FIELD_GET(GEN9_MEM_LATENCY_LEVEL_3_7_MASK, val) * mult;
+
+	adjust_wm_latency(i915, wm, max_level, read_latency);
+}
+
+static void skl_setup_wm_latency(struct drm_i915_private *i915)
+{
+	if (DISPLAY_VER(i915) >= 14)
+		mtl_read_wm_latency(i915, i915->display.wm.skl_latency);
+	else
+		skl_read_wm_latency(i915, i915->display.wm.skl_latency);
+
+	intel_print_wm_latency(i915, "Gen9 Plane", i915->display.wm.skl_latency);
+}
+
+static const struct intel_wm_funcs skl_wm_funcs = {
+	.compute_global_watermarks = skl_compute_wm,
+};
+
+void skl_wm_init(struct drm_i915_private *i915)
+{
+	intel_sagv_init(i915);
+
+	skl_setup_wm_latency(i915);
+
+	i915->display.funcs.wm = &skl_wm_funcs;
+}
+
+static struct intel_global_state *intel_dbuf_duplicate_state(struct intel_global_obj *obj)
+{
+	struct intel_dbuf_state *dbuf_state;
+
+	dbuf_state = kmemdup(obj->state, sizeof(*dbuf_state), GFP_KERNEL);
+	if (!dbuf_state)
+		return NULL;
+
+	return &dbuf_state->base;
+}
+
+static void intel_dbuf_destroy_state(struct intel_global_obj *obj,
+				     struct intel_global_state *state)
+{
+	kfree(state);
+}
+
+static const struct intel_global_state_funcs intel_dbuf_funcs = {
+	.atomic_duplicate_state = intel_dbuf_duplicate_state,
+	.atomic_destroy_state = intel_dbuf_destroy_state,
+};
+
+struct intel_dbuf_state *
+intel_atomic_get_dbuf_state(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	struct intel_global_state *dbuf_state;
+
+	dbuf_state = intel_atomic_get_global_obj_state(state, &i915->display.dbuf.obj);
+	if (IS_ERR(dbuf_state))
+		return ERR_CAST(dbuf_state);
+
+	return to_intel_dbuf_state(dbuf_state);
+}
+
+int intel_dbuf_init(struct drm_i915_private *i915)
+{
+	struct intel_dbuf_state *dbuf_state;
+
+	dbuf_state = kzalloc(sizeof(*dbuf_state), GFP_KERNEL);
+	if (!dbuf_state)
+		return -ENOMEM;
+
+	intel_atomic_global_obj_init(i915, &i915->display.dbuf.obj,
+				     &dbuf_state->base, &intel_dbuf_funcs);
+
+	return 0;
+}
+
+/*
+ * Configure MBUS_CTL and all DBUF_CTL_S of each slice to join_mbus state before
+ * update the request state of all DBUS slices.
+ */
+static void update_mbus_pre_enable(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	u32 mbus_ctl, dbuf_min_tracker_val;
+	enum dbuf_slice slice;
+	const struct intel_dbuf_state *dbuf_state =
+		intel_atomic_get_new_dbuf_state(state);
+
+	if (!HAS_MBUS_JOINING(i915))
+		return;
+
+	/*
+	 * TODO: Implement vblank synchronized MBUS joining changes.
+	 * Must be properly coordinated with dbuf reprogramming.
+	 */
+	if (dbuf_state->joined_mbus) {
+		mbus_ctl = MBUS_HASHING_MODE_1x4 | MBUS_JOIN |
+			MBUS_JOIN_PIPE_SELECT_NONE;
+		dbuf_min_tracker_val = DBUF_MIN_TRACKER_STATE_SERVICE(3);
+	} else {
+		mbus_ctl = MBUS_HASHING_MODE_2x2 |
+			MBUS_JOIN_PIPE_SELECT_NONE;
+		dbuf_min_tracker_val = DBUF_MIN_TRACKER_STATE_SERVICE(1);
+	}
+
+	intel_de_rmw(i915, MBUS_CTL,
+		     MBUS_HASHING_MODE_MASK | MBUS_JOIN |
+		     MBUS_JOIN_PIPE_SELECT_MASK, mbus_ctl);
+
+	for_each_dbuf_slice(i915, slice)
+		intel_de_rmw(i915, DBUF_CTL_S(slice),
+			     DBUF_MIN_TRACKER_STATE_SERVICE_MASK,
+			     dbuf_min_tracker_val);
+}
+
+void intel_dbuf_pre_plane_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_dbuf_state *new_dbuf_state =
+		intel_atomic_get_new_dbuf_state(state);
+	const struct intel_dbuf_state *old_dbuf_state =
+		intel_atomic_get_old_dbuf_state(state);
+
+	if (!new_dbuf_state ||
+	    (new_dbuf_state->enabled_slices == old_dbuf_state->enabled_slices &&
+	     new_dbuf_state->joined_mbus == old_dbuf_state->joined_mbus))
+		return;
+
+	WARN_ON(!new_dbuf_state->base.changed);
+
+	update_mbus_pre_enable(state);
+	gen9_dbuf_slices_update(i915,
+				old_dbuf_state->enabled_slices |
+				new_dbuf_state->enabled_slices);
+}
+
+void intel_dbuf_post_plane_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_dbuf_state *new_dbuf_state =
+		intel_atomic_get_new_dbuf_state(state);
+	const struct intel_dbuf_state *old_dbuf_state =
+		intel_atomic_get_old_dbuf_state(state);
+
+	if (!new_dbuf_state ||
+	    (new_dbuf_state->enabled_slices == old_dbuf_state->enabled_slices &&
+	     new_dbuf_state->joined_mbus == old_dbuf_state->joined_mbus))
+		return;
+
+	WARN_ON(!new_dbuf_state->base.changed);
+
+	gen9_dbuf_slices_update(i915,
+				new_dbuf_state->enabled_slices);
+}
+
+static bool xelpdp_is_only_pipe_per_dbuf_bank(enum pipe pipe, u8 active_pipes)
+{
+	switch (pipe) {
+	case PIPE_A:
+		return !(active_pipes & BIT(PIPE_D));
+	case PIPE_D:
+		return !(active_pipes & BIT(PIPE_A));
+	case PIPE_B:
+		return !(active_pipes & BIT(PIPE_C));
+	case PIPE_C:
+		return !(active_pipes & BIT(PIPE_B));
+	default: /* to suppress compiler warning */
+		MISSING_CASE(pipe);
+		break;
+	}
+
+	return false;
+}
+
+void intel_mbus_dbox_update(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *i915 = to_i915(state->base.dev);
+	const struct intel_dbuf_state *new_dbuf_state, *old_dbuf_state;
+	const struct intel_crtc_state *new_crtc_state;
+	const struct intel_crtc *crtc;
+	u32 val = 0;
+	int i;
+
+	if (DISPLAY_VER(i915) < 11)
+		return;
+
+	new_dbuf_state = intel_atomic_get_new_dbuf_state(state);
+	old_dbuf_state = intel_atomic_get_old_dbuf_state(state);
+	if (!new_dbuf_state ||
+	    (new_dbuf_state->joined_mbus == old_dbuf_state->joined_mbus &&
+	     new_dbuf_state->active_pipes == old_dbuf_state->active_pipes))
+		return;
+
+	if (DISPLAY_VER(i915) >= 14)
+		val |= MBUS_DBOX_I_CREDIT(2);
+
+	if (DISPLAY_VER(i915) >= 12) {
+		val |= MBUS_DBOX_B2B_TRANSACTIONS_MAX(16);
+		val |= MBUS_DBOX_B2B_TRANSACTIONS_DELAY(1);
+		val |= MBUS_DBOX_REGULATE_B2B_TRANSACTIONS_EN;
+	}
+
+	if (DISPLAY_VER(i915) >= 14)
+		val |= new_dbuf_state->joined_mbus ? MBUS_DBOX_A_CREDIT(12) :
+						     MBUS_DBOX_A_CREDIT(8);
+	else if (IS_ALDERLAKE_P(i915))
+		/* Wa_22010947358:adl-p */
+		val |= new_dbuf_state->joined_mbus ? MBUS_DBOX_A_CREDIT(6) :
+						     MBUS_DBOX_A_CREDIT(4);
+	else
+		val |= MBUS_DBOX_A_CREDIT(2);
+
+	if (DISPLAY_VER(i915) >= 14) {
+		val |= MBUS_DBOX_B_CREDIT(0xA);
+	} else if (IS_ALDERLAKE_P(i915)) {
+		val |= MBUS_DBOX_BW_CREDIT(2);
+		val |= MBUS_DBOX_B_CREDIT(8);
+	} else if (DISPLAY_VER(i915) >= 12) {
+		val |= MBUS_DBOX_BW_CREDIT(2);
+		val |= MBUS_DBOX_B_CREDIT(12);
+	} else {
+		val |= MBUS_DBOX_BW_CREDIT(1);
+		val |= MBUS_DBOX_B_CREDIT(8);
+	}
+
+	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
+		u32 pipe_val = val;
+
+		if (!new_crtc_state->hw.active)
+			continue;
+
+		if (DISPLAY_VER(i915) >= 14) {
+			if (xelpdp_is_only_pipe_per_dbuf_bank(crtc->pipe,
+							      new_dbuf_state->active_pipes))
+				pipe_val |= MBUS_DBOX_BW_8CREDITS_MTL;
+			else
+				pipe_val |= MBUS_DBOX_BW_4CREDITS_MTL;
+		}
+
+		intel_de_write(i915, PIPE_MBUS_DBOX_CTL(crtc->pipe), pipe_val);
+	}
+}
+
+static int skl_watermark_ipc_status_show(struct seq_file *m, void *data)
+{
+	struct drm_i915_private *i915 = m->private;
+
+	seq_printf(m, "Isochronous Priority Control: %s\n",
+		   str_yes_no(skl_watermark_ipc_enabled(i915)));
+	return 0;
+}
+
+static int skl_watermark_ipc_status_open(struct inode *inode, struct file *file)
+{
+	struct drm_i915_private *i915 = inode->i_private;
+
+	return single_open(file, skl_watermark_ipc_status_show, i915);
+}
+
+static ssize_t skl_watermark_ipc_status_write(struct file *file,
+					      const char __user *ubuf,
+					      size_t len, loff_t *offp)
+{
+	struct seq_file *m = file->private_data;
+	struct drm_i915_private *i915 = m->private;
+	intel_wakeref_t wakeref;
+	bool enable;
+	int ret;
+
+	ret = kstrtobool_from_user(ubuf, len, &enable);
+	if (ret < 0)
+		return ret;
+
+	with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
+		if (!skl_watermark_ipc_enabled(i915) && enable)
+			drm_info(&i915->drm,
+				 "Enabling IPC: WM will be proper only after next commit\n");
+		i915->display.wm.ipc_enabled = enable;
+		skl_watermark_ipc_update(i915);
+	}
+
+	return len;
+}
+
+static const struct file_operations skl_watermark_ipc_status_fops = {
+	.owner = THIS_MODULE,
+	.open = skl_watermark_ipc_status_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.write = skl_watermark_ipc_status_write
+};
+
+void skl_watermark_ipc_debugfs_register(struct drm_i915_private *i915)
+{
+	struct drm_minor *minor = i915->drm.primary;
+
+	if (!HAS_IPC(i915))
+		return;
+
+	debugfs_create_file("i915_ipc_status", 0644, minor->debugfs_root, i915,
+			    &skl_watermark_ipc_status_fops);
+}

drivers/gpu/drm/i915/display/skl_watermark.h

···
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef __SKL_WATERMARK_H__
+#define __SKL_WATERMARK_H__
+
+#include <linux/types.h>
+
+#include "intel_display.h"
+#include "intel_global_state.h"
+#include "intel_pm_types.h"
+
+struct drm_i915_private;
+struct intel_atomic_state;
+struct intel_bw_state;
+struct intel_crtc;
+struct intel_crtc_state;
+struct intel_plane;
+
+u8 intel_enabled_dbuf_slices_mask(struct drm_i915_private *i915);
+
+void intel_sagv_pre_plane_update(struct intel_atomic_state *state);
+void intel_sagv_post_plane_update(struct intel_atomic_state *state);
+bool intel_can_enable_sagv(struct drm_i915_private *i915,
+			   const struct intel_bw_state *bw_state);
+
+u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *i915,
+			    const struct skl_ddb_entry *entry);
+
+void skl_write_plane_wm(struct intel_plane *plane,
+			const struct intel_crtc_state *crtc_state);
+void skl_write_cursor_wm(struct intel_plane *plane,
+			 const struct intel_crtc_state *crtc_state);
+
+bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
+				 const struct skl_ddb_entry *entries,
+				 int num_entries, int ignore_idx);
+
+void skl_wm_get_hw_state(struct drm_i915_private *i915);
+void skl_wm_sanitize(struct drm_i915_private *i915);
+
+void intel_wm_state_verify(struct intel_crtc *crtc,
+			   struct intel_crtc_state *new_crtc_state);
+
+void skl_watermark_ipc_init(struct drm_i915_private *i915);
+void skl_watermark_ipc_update(struct drm_i915_private *i915);
+bool skl_watermark_ipc_enabled(struct drm_i915_private *i915);
+void skl_watermark_ipc_debugfs_register(struct drm_i915_private *i915);
+
+void skl_wm_init(struct drm_i915_private *i915);
+
+struct intel_dbuf_state {
+	struct intel_global_state base;
+
+	struct skl_ddb_entry ddb[I915_MAX_PIPES];
+	unsigned int weight[I915_MAX_PIPES];
+	u8 slices[I915_MAX_PIPES];
+	u8 enabled_slices;
+	u8 active_pipes;
+	bool joined_mbus;
+};
+
+struct intel_dbuf_state *
+intel_atomic_get_dbuf_state(struct intel_atomic_state *state);
+
+#define to_intel_dbuf_state(x) container_of((x), struct intel_dbuf_state, base)
+#define intel_atomic_get_old_dbuf_state(state) \
+	to_intel_dbuf_state(intel_atomic_get_old_global_obj_state(state, &to_i915(state->base.dev)->display.dbuf.obj))
+#define intel_atomic_get_new_dbuf_state(state) \
+	to_intel_dbuf_state(intel_atomic_get_new_global_obj_state(state, &to_i915(state->base.dev)->display.dbuf.obj))
+
+int intel_dbuf_init(struct drm_i915_private *i915);
+void intel_dbuf_pre_plane_update(struct intel_atomic_state *state);
+void intel_dbuf_post_plane_update(struct intel_atomic_state *state);
+void intel_mbus_dbox_update(struct intel_atomic_state *state);
+
+#endif /* __SKL_WATERMARK_H__ */
+

drivers/gpu/drm/i915/display/vlv_dsi.c

···
 		u32 val;
 
 		/* Disable DPOunit clock gating, can stall pipe */
-		val = intel_de_read(dev_priv, DSPCLK_GATE_D);
+		val = intel_de_read(dev_priv, DSPCLK_GATE_D(dev_priv));
 		val |= DPOUNIT_CLOCK_GATE_DISABLE;
-		intel_de_write(dev_priv, DSPCLK_GATE_D, val);
+		intel_de_write(dev_priv, DSPCLK_GATE_D(dev_priv), val);
 	}
 
 	if (!IS_GEMINILAKE(dev_priv))
···
 
 		vlv_dsi_pll_disable(encoder);
 
-		val = intel_de_read(dev_priv, DSPCLK_GATE_D);
+		val = intel_de_read(dev_priv, DSPCLK_GATE_D(dev_priv));
 		val &= ~DPOUNIT_CLOCK_GATE_DISABLE;
-		intel_de_write(dev_priv, DSPCLK_GATE_D, val);
+		intel_de_write(dev_priv, DSPCLK_GATE_D(dev_priv), val);
 	}
 
 	/* Assert reset */
···
 		pclk = vlv_dsi_get_pclk(encoder, pipe_config);
 	}
 
-	if (intel_dsi->dual_link)
-		pclk *= 2;
+	pipe_config->port_clock = pclk;
 
-	if (pclk) {
-		pipe_config->hw.adjusted_mode.crtc_clock = pclk;
-		pipe_config->port_clock = pclk;
-	}
+	/* FIXME definitely not right for burst/cmd mode/pixel overlap */
+	pipe_config->hw.adjusted_mode.crtc_clock = pclk;
+	if (intel_dsi->dual_link)
+		pipe_config->hw.adjusted_mode.crtc_clock *= 2;
 }
 
 /* return txclkesc cycles in terms of divider and duration in us */
···
 		return;
 
 	if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
-		dev_priv->mipi_mmio_base = BXT_MIPI_BASE;
+		dev_priv->display.dsi.mmio_base = BXT_MIPI_BASE;
 	else
-		dev_priv->mipi_mmio_base = VLV_MIPI_BASE;
+		dev_priv->display.dsi.mmio_base = VLV_MIPI_BASE;
 
 	intel_dsi = kzalloc(sizeof(*intel_dsi), GFP_KERNEL);
 	if (!intel_dsi)

drivers/gpu/drm/i915/display/vlv_dsi_pll.c

···
 	return 0;
 }
 
+static int vlv_dsi_pclk(struct intel_encoder *encoder,
+			struct intel_crtc_state *config)
+{
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+	struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
+	int bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format);
+	u32 dsi_clock;
+	u32 pll_ctl, pll_div;
+	u32 m = 0, p = 0, n;
+	int refclk = IS_CHERRYVIEW(dev_priv) ? 100000 : 25000;
+	int i;
+
+	pll_ctl = config->dsi_pll.ctrl;
+	pll_div = config->dsi_pll.div;
+
+	/* mask out other bits and extract the P1 divisor */
+	pll_ctl &= DSI_PLL_P1_POST_DIV_MASK;
+	pll_ctl = pll_ctl >> (DSI_PLL_P1_POST_DIV_SHIFT - 2);
+
+	/* N1 divisor */
+	n = (pll_div & DSI_PLL_N1_DIV_MASK) >> DSI_PLL_N1_DIV_SHIFT;
+	n = 1 << n; /* register has log2(N1) */
+
+	/* mask out the other bits and extract the M1 divisor */
+	pll_div &= DSI_PLL_M1_DIV_MASK;
+	pll_div = pll_div >> DSI_PLL_M1_DIV_SHIFT;
+
+	while (pll_ctl) {
+		pll_ctl = pll_ctl >> 1;
+		p++;
+	}
+	p--;
+
+	if (!p) {
+		drm_err(&dev_priv->drm, "wrong P1 divisor\n");
+		return 0;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(lfsr_converts); i++) {
+		if (lfsr_converts[i] == pll_div)
+			break;
+	}
+
+	if (i == ARRAY_SIZE(lfsr_converts)) {
+		drm_err(&dev_priv->drm, "wrong m_seed programmed\n");
+		return 0;
+	}
+
+	m = i + 62;
+
+	dsi_clock = (m * refclk) / (p * n);
+
+	return DIV_ROUND_CLOSEST(dsi_clock * intel_dsi->lane_count, bpp);
+}
+
 /*
  * XXX: The muxing and gating is hard coded for now. Need to add support for
  * sharing PLLs with two DSI outputs.
···
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
-	int ret;
-	u32 dsi_clk;
+	int pclk, dsi_clk, ret;
 
 	dsi_clk = dsi_clk_from_pclk(intel_dsi->pclk, intel_dsi->pixel_format,
 				    intel_dsi->lane_count);
···
 
 	drm_dbg_kms(&dev_priv->drm, "dsi pll div %08x, ctrl %08x\n",
 		    config->dsi_pll.div, config->dsi_pll.ctrl);
+
+	pclk = vlv_dsi_pclk(encoder, config);
+	config->port_clock = pclk;
+
+	/* FIXME definitely not right for burst/cmd mode/pixel overlap */
+	config->hw.adjusted_mode.crtc_clock = pclk;
+	if (intel_dsi->dual_link)
+		config->hw.adjusted_mode.crtc_clock *= 2;
 
 	return 0;
 }
···
 		     struct intel_crtc_state *config)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-	struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
-	int bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format);
-	u32 dsi_clock, pclk;
 	u32 pll_ctl, pll_div;
-	u32 m = 0, p = 0, n;
-	int refclk = IS_CHERRYVIEW(dev_priv) ? 100000 : 25000;
-	int i;
 
 	drm_dbg_kms(&dev_priv->drm, "\n");
 
···
 	config->dsi_pll.ctrl = pll_ctl & ~DSI_PLL_LOCK;
 	config->dsi_pll.div = pll_div;
 
-	/* mask out other bits and extract the P1 divisor */
-	pll_ctl &= DSI_PLL_P1_POST_DIV_MASK;
-	pll_ctl = pll_ctl >> (DSI_PLL_P1_POST_DIV_SHIFT - 2);
+	return vlv_dsi_pclk(encoder, config);
+}
 
-	/* N1 divisor */
-	n = (pll_div & DSI_PLL_N1_DIV_MASK) >> DSI_PLL_N1_DIV_SHIFT;
-	n = 1 << n; /* register has log2(N1) */
+static int bxt_dsi_pclk(struct intel_encoder *encoder,
+			const struct intel_crtc_state *config)
+{
+	struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
+	int bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format);
+	u32 dsi_ratio, dsi_clk;
 
-	/* mask out the other bits and extract the M1 divisor */
-	pll_div &= DSI_PLL_M1_DIV_MASK;
-	pll_div = pll_div >> DSI_PLL_M1_DIV_SHIFT;
+	dsi_ratio = config->dsi_pll.ctrl & BXT_DSI_PLL_RATIO_MASK;
+	dsi_clk = (dsi_ratio * BXT_REF_CLOCK_KHZ) / 2;
 
-	while (pll_ctl) {
-		pll_ctl = pll_ctl >> 1;
-		p++;
-	}
-	p--;
-
-	if (!p) {
-		drm_err(&dev_priv->drm, "wrong P1 divisor\n");
-		return 0;
-	}
-
-	for (i = 0; i < ARRAY_SIZE(lfsr_converts); i++) {
-		if (lfsr_converts[i] == pll_div)
-			break;
-	}
-
-	if (i == ARRAY_SIZE(lfsr_converts)) {
-		drm_err(&dev_priv->drm, "wrong m_seed programmed\n");
-		return 0;
-	}
-
-	m = i + 62;
-
-	dsi_clock = (m * refclk) / (p * n);
-
-	pclk = DIV_ROUND_CLOSEST(dsi_clock * intel_dsi->lane_count, bpp);
-
-	return pclk;
+	return DIV_ROUND_CLOSEST(dsi_clk * intel_dsi->lane_count, bpp);
 }
 
 u32 bxt_dsi_get_pclk(struct intel_encoder *encoder,
 		     struct intel_crtc_state *config)
 {
-	u32 pclk;
-	u32 dsi_clk;
-	u32 dsi_ratio;
-	struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-	int bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format);
+	u32 pclk;
 
 	config->dsi_pll.ctrl = intel_de_read(dev_priv, BXT_DSI_PLL_CTL);
 
-	dsi_ratio = config->dsi_pll.ctrl & BXT_DSI_PLL_RATIO_MASK;
-
-	dsi_clk = (dsi_ratio * BXT_REF_CLOCK_KHZ) / 2;
-
-	pclk = DIV_ROUND_CLOSEST(dsi_clk * intel_dsi->lane_count, bpp);
+	pclk = bxt_dsi_pclk(encoder, config);
 
 	drm_dbg(&dev_priv->drm, "Calculated pclk=%u\n", pclk);
 	return pclk;
···
 	struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
 	u8 dsi_ratio, dsi_ratio_min, dsi_ratio_max;
 	u32 dsi_clk;
+	int pclk;
 
 	dsi_clk = dsi_clk_from_pclk(intel_dsi->pclk, intel_dsi->pixel_format,
 				    intel_dsi->lane_count);
···
 	 */
 	if (IS_BROXTON(dev_priv) && dsi_ratio <= 50)
 		config->dsi_pll.ctrl |= BXT_DSI_PLL_PVD_RATIO_1;
+
+	pclk = bxt_dsi_pclk(encoder, config);
+	config->port_clock = pclk;
+
+	/* FIXME definitely not right for burst/cmd mode/pixel overlap */
+	config->hw.adjusted_mode.crtc_clock = pclk;
+	if (intel_dsi->dual_link)
+		config->hw.adjusted_mode.crtc_clock *= 2;
 
 	return 0;
 }

drivers/gpu/drm/i915/display/vlv_dsi_regs.h

···
 #define VLV_MIPI_BASE			VLV_DISPLAY_BASE
 #define BXT_MIPI_BASE			0x60000
 
+#define _MIPI_MMIO_BASE(__i915) ((__i915)->display.dsi.mmio_base)
+
 #define _MIPI_PORT(port, a, c)	(((port) == PORT_A) ? a : c)	/* ports A and C only */
 #define _MMIO_MIPI(port, a, c)	_MMIO(_MIPI_PORT(port, a, c))
 
···
 
 /* MIPI DSI Controller and D-PHY registers */
 
-#define _MIPIA_DEVICE_READY		(dev_priv->mipi_mmio_base + 0xb000)
-#define _MIPIC_DEVICE_READY		(dev_priv->mipi_mmio_base + 0xb800)
+#define _MIPIA_DEVICE_READY		(_MIPI_MMIO_BASE(dev_priv) + 0xb000)
+#define _MIPIC_DEVICE_READY		(_MIPI_MMIO_BASE(dev_priv) + 0xb800)
 #define MIPI_DEVICE_READY(port)		_MMIO_MIPI(port, _MIPIA_DEVICE_READY, _MIPIC_DEVICE_READY)
 #define  BUS_POSSESSION					(1 << 3) /* set to give bus to receiver */
 #define  ULPS_STATE_MASK				(3 << 1)
···
 #define  ULPS_STATE_NORMAL_OPERATION			(0 << 1)
 #define  DEVICE_READY					(1 << 0)
 
-#define _MIPIA_INTR_STAT		(dev_priv->mipi_mmio_base + 0xb004)
-#define _MIPIC_INTR_STAT		(dev_priv->mipi_mmio_base + 0xb804)
+#define _MIPIA_INTR_STAT		(_MIPI_MMIO_BASE(dev_priv) + 0xb004)
+#define _MIPIC_INTR_STAT		(_MIPI_MMIO_BASE(dev_priv) + 0xb804)
 #define MIPI_INTR_STAT(port)		_MMIO_MIPI(port, _MIPIA_INTR_STAT, _MIPIC_INTR_STAT)
-#define _MIPIA_INTR_EN			(dev_priv->mipi_mmio_base + 0xb008)
-#define _MIPIC_INTR_EN			(dev_priv->mipi_mmio_base + 0xb808)
+#define _MIPIA_INTR_EN			(_MIPI_MMIO_BASE(dev_priv) + 0xb008)
+#define _MIPIC_INTR_EN			(_MIPI_MMIO_BASE(dev_priv) + 0xb808)
 #define MIPI_INTR_EN(port)		_MMIO_MIPI(port, _MIPIA_INTR_EN, _MIPIC_INTR_EN)
 #define  TEARING_EFFECT					(1 << 31)
 #define  SPL_PKT_SENT_INTERRUPT				(1 << 30)
···
 #define  RXSOT_SYNC_ERROR				(1 << 1)
 #define  RXSOT_ERROR					(1 << 0)
 
-#define _MIPIA_DSI_FUNC_PRG		(dev_priv->mipi_mmio_base + 0xb00c)
-#define _MIPIC_DSI_FUNC_PRG		(dev_priv->mipi_mmio_base + 0xb80c)
+#define _MIPIA_DSI_FUNC_PRG		(_MIPI_MMIO_BASE(dev_priv) + 0xb00c)
+#define _MIPIC_DSI_FUNC_PRG		(_MIPI_MMIO_BASE(dev_priv) + 0xb80c)
 #define MIPI_DSI_FUNC_PRG(port)		_MMIO_MIPI(port, _MIPIA_DSI_FUNC_PRG, _MIPIC_DSI_FUNC_PRG)
 #define  CMD_MODE_DATA_WIDTH_MASK			(7 << 13)
 #define  CMD_MODE_NOT_SUPPORTED				(0 << 13)
···
 #define  DATA_LANES_PRG_REG_SHIFT			0
 #define  DATA_LANES_PRG_REG_MASK			(7 << 0)
 
-#define _MIPIA_HS_TX_TIMEOUT		(dev_priv->mipi_mmio_base + 0xb010)
-#define _MIPIC_HS_TX_TIMEOUT		(dev_priv->mipi_mmio_base + 0xb810)
+#define _MIPIA_HS_TX_TIMEOUT		(_MIPI_MMIO_BASE(dev_priv) + 0xb010)
+#define _MIPIC_HS_TX_TIMEOUT		(_MIPI_MMIO_BASE(dev_priv) + 0xb810)
 #define MIPI_HS_TX_TIMEOUT(port)	_MMIO_MIPI(port, _MIPIA_HS_TX_TIMEOUT, _MIPIC_HS_TX_TIMEOUT)
 #define  HIGH_SPEED_TX_TIMEOUT_COUNTER_MASK		0xffffff
 
-#define _MIPIA_LP_RX_TIMEOUT		(dev_priv->mipi_mmio_base + 0xb014)
-#define _MIPIC_LP_RX_TIMEOUT		(dev_priv->mipi_mmio_base + 0xb814)
+#define _MIPIA_LP_RX_TIMEOUT		(_MIPI_MMIO_BASE(dev_priv) + 0xb014)
+#define _MIPIC_LP_RX_TIMEOUT		(_MIPI_MMIO_BASE(dev_priv) + 0xb814)
 #define MIPI_LP_RX_TIMEOUT(port)	_MMIO_MIPI(port, _MIPIA_LP_RX_TIMEOUT, _MIPIC_LP_RX_TIMEOUT)
 #define  LOW_POWER_RX_TIMEOUT_COUNTER_MASK		0xffffff
 
-#define _MIPIA_TURN_AROUND_TIMEOUT	(dev_priv->mipi_mmio_base + 0xb018)
-#define _MIPIC_TURN_AROUND_TIMEOUT	(dev_priv->mipi_mmio_base + 0xb818)
+#define _MIPIA_TURN_AROUND_TIMEOUT	(_MIPI_MMIO_BASE(dev_priv) + 0xb018)
+#define _MIPIC_TURN_AROUND_TIMEOUT	(_MIPI_MMIO_BASE(dev_priv) + 0xb818)
 #define MIPI_TURN_AROUND_TIMEOUT(port)	_MMIO_MIPI(port, _MIPIA_TURN_AROUND_TIMEOUT, _MIPIC_TURN_AROUND_TIMEOUT)
 #define  TURN_AROUND_TIMEOUT_MASK			0x3f
 
-#define _MIPIA_DEVICE_RESET_TIMER	(dev_priv->mipi_mmio_base + 0xb01c)
-#define _MIPIC_DEVICE_RESET_TIMER	(dev_priv->mipi_mmio_base + 0xb81c)
+#define _MIPIA_DEVICE_RESET_TIMER	(_MIPI_MMIO_BASE(dev_priv) + 0xb01c)
+#define _MIPIC_DEVICE_RESET_TIMER	(_MIPI_MMIO_BASE(dev_priv) + 0xb81c)
 #define MIPI_DEVICE_RESET_TIMER(port)	_MMIO_MIPI(port, _MIPIA_DEVICE_RESET_TIMER, _MIPIC_DEVICE_RESET_TIMER)
 #define  DEVICE_RESET_TIMER_MASK			0xffff
 
-#define _MIPIA_DPI_RESOLUTION		(dev_priv->mipi_mmio_base + 0xb020)
-#define _MIPIC_DPI_RESOLUTION		(dev_priv->mipi_mmio_base + 0xb820)
+#define _MIPIA_DPI_RESOLUTION		(_MIPI_MMIO_BASE(dev_priv) + 0xb020)
+#define _MIPIC_DPI_RESOLUTION		(_MIPI_MMIO_BASE(dev_priv) + 0xb820)
 #define MIPI_DPI_RESOLUTION(port)	_MMIO_MIPI(port, _MIPIA_DPI_RESOLUTION, _MIPIC_DPI_RESOLUTION)
 #define  VERTICAL_ADDRESS_SHIFT				16
 #define  VERTICAL_ADDRESS_MASK				(0xffff << 16)
 #define  HORIZONTAL_ADDRESS_SHIFT			0
 #define  HORIZONTAL_ADDRESS_MASK			0xffff
 
-#define _MIPIA_DBI_FIFO_THROTTLE	(dev_priv->mipi_mmio_base + 0xb024)
-#define _MIPIC_DBI_FIFO_THROTTLE	(dev_priv->mipi_mmio_base + 0xb824)
+#define _MIPIA_DBI_FIFO_THROTTLE	(_MIPI_MMIO_BASE(dev_priv) + 0xb024)
+#define _MIPIC_DBI_FIFO_THROTTLE	(_MIPI_MMIO_BASE(dev_priv) + 0xb824)
 #define MIPI_DBI_FIFO_THROTTLE(port)	_MMIO_MIPI(port, _MIPIA_DBI_FIFO_THROTTLE, _MIPIC_DBI_FIFO_THROTTLE)
 #define  DBI_FIFO_EMPTY_HALF				(0 << 0)
 #define  DBI_FIFO_EMPTY_QUARTER				(1 << 0)
 #define  DBI_FIFO_EMPTY_7_LOCATIONS			(2 << 0)
 
 /* regs below are bits 15:0 */
-#define _MIPIA_HSYNC_PADDING_COUNT	(dev_priv->mipi_mmio_base + 0xb028)
-#define _MIPIC_HSYNC_PADDING_COUNT	(dev_priv->mipi_mmio_base + 0xb828)
+#define _MIPIA_HSYNC_PADDING_COUNT	(_MIPI_MMIO_BASE(dev_priv) + 0xb028)
+#define _MIPIC_HSYNC_PADDING_COUNT	(_MIPI_MMIO_BASE(dev_priv) + 0xb828)
 #define MIPI_HSYNC_PADDING_COUNT(port)	_MMIO_MIPI(port, _MIPIA_HSYNC_PADDING_COUNT, _MIPIC_HSYNC_PADDING_COUNT)
 
-#define _MIPIA_HBP_COUNT		(dev_priv->mipi_mmio_base + 0xb02c)
-#define _MIPIC_HBP_COUNT		(dev_priv->mipi_mmio_base + 0xb82c)
+#define _MIPIA_HBP_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb02c)
+#define _MIPIC_HBP_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb82c)
 #define MIPI_HBP_COUNT(port)		_MMIO_MIPI(port, _MIPIA_HBP_COUNT, _MIPIC_HBP_COUNT)
 
-#define _MIPIA_HFP_COUNT		(dev_priv->mipi_mmio_base + 0xb030)
-#define _MIPIC_HFP_COUNT		(dev_priv->mipi_mmio_base + 0xb830)
+#define _MIPIA_HFP_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb030)
+#define _MIPIC_HFP_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb830)
 #define MIPI_HFP_COUNT(port)		_MMIO_MIPI(port, _MIPIA_HFP_COUNT, _MIPIC_HFP_COUNT)
 
-#define _MIPIA_HACTIVE_AREA_COUNT	(dev_priv->mipi_mmio_base + 0xb034)
-#define _MIPIC_HACTIVE_AREA_COUNT	(dev_priv->mipi_mmio_base + 0xb834)
+#define _MIPIA_HACTIVE_AREA_COUNT	(_MIPI_MMIO_BASE(dev_priv) + 0xb034)
+#define _MIPIC_HACTIVE_AREA_COUNT	(_MIPI_MMIO_BASE(dev_priv) + 0xb834)
 #define MIPI_HACTIVE_AREA_COUNT(port)	_MMIO_MIPI(port, _MIPIA_HACTIVE_AREA_COUNT, _MIPIC_HACTIVE_AREA_COUNT)
 
-#define _MIPIA_VSYNC_PADDING_COUNT	(dev_priv->mipi_mmio_base + 0xb038)
-#define _MIPIC_VSYNC_PADDING_COUNT	(dev_priv->mipi_mmio_base + 0xb838)
+#define _MIPIA_VSYNC_PADDING_COUNT	(_MIPI_MMIO_BASE(dev_priv) + 0xb038)
+#define _MIPIC_VSYNC_PADDING_COUNT	(_MIPI_MMIO_BASE(dev_priv) + 0xb838)
 #define MIPI_VSYNC_PADDING_COUNT(port)	_MMIO_MIPI(port, _MIPIA_VSYNC_PADDING_COUNT, _MIPIC_VSYNC_PADDING_COUNT)
 
-#define _MIPIA_VBP_COUNT		(dev_priv->mipi_mmio_base + 0xb03c)
-#define _MIPIC_VBP_COUNT		(dev_priv->mipi_mmio_base + 0xb83c)
+#define _MIPIA_VBP_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb03c)
+#define _MIPIC_VBP_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb83c)
 #define MIPI_VBP_COUNT(port)		_MMIO_MIPI(port, _MIPIA_VBP_COUNT, _MIPIC_VBP_COUNT)
 
-#define _MIPIA_VFP_COUNT		(dev_priv->mipi_mmio_base + 0xb040)
-#define _MIPIC_VFP_COUNT		(dev_priv->mipi_mmio_base + 0xb840)
+#define _MIPIA_VFP_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb040)
+#define _MIPIC_VFP_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb840)
 #define MIPI_VFP_COUNT(port)		_MMIO_MIPI(port, _MIPIA_VFP_COUNT, _MIPIC_VFP_COUNT)
 
-#define _MIPIA_HIGH_LOW_SWITCH_COUNT	(dev_priv->mipi_mmio_base + 0xb044)
-#define _MIPIC_HIGH_LOW_SWITCH_COUNT	(dev_priv->mipi_mmio_base + 0xb844)
+#define _MIPIA_HIGH_LOW_SWITCH_COUNT	(_MIPI_MMIO_BASE(dev_priv) + 0xb044)
+#define _MIPIC_HIGH_LOW_SWITCH_COUNT	(_MIPI_MMIO_BASE(dev_priv) + 0xb844)
 #define MIPI_HIGH_LOW_SWITCH_COUNT(port)	_MMIO_MIPI(port,	_MIPIA_HIGH_LOW_SWITCH_COUNT, _MIPIC_HIGH_LOW_SWITCH_COUNT)
 
-#define _MIPIA_DPI_CONTROL		(dev_priv->mipi_mmio_base + 0xb048)
-#define _MIPIC_DPI_CONTROL		(dev_priv->mipi_mmio_base + 0xb848)
+#define _MIPIA_DPI_CONTROL		(_MIPI_MMIO_BASE(dev_priv) + 0xb048)
+#define _MIPIC_DPI_CONTROL		(_MIPI_MMIO_BASE(dev_priv) + 0xb848)
 #define MIPI_DPI_CONTROL(port)		_MMIO_MIPI(port, _MIPIA_DPI_CONTROL, _MIPIC_DPI_CONTROL)
 #define  DPI_LP_MODE					(1 << 6)
 #define  BACKLIGHT_OFF					(1 << 5)
···
 #define  TURN_ON					(1 << 1)
 #define  SHUTDOWN					(1 << 0)
 
-#define _MIPIA_DPI_DATA			(dev_priv->mipi_mmio_base + 0xb04c)
-#define _MIPIC_DPI_DATA			(dev_priv->mipi_mmio_base + 0xb84c)
+#define _MIPIA_DPI_DATA			(_MIPI_MMIO_BASE(dev_priv) + 0xb04c)
+#define _MIPIC_DPI_DATA			(_MIPI_MMIO_BASE(dev_priv) + 0xb84c)
 #define MIPI_DPI_DATA(port)		_MMIO_MIPI(port, _MIPIA_DPI_DATA, _MIPIC_DPI_DATA)
 #define  COMMAND_BYTE_SHIFT				0
 #define  COMMAND_BYTE_MASK				(0x3f << 0)
 
-#define _MIPIA_INIT_COUNT		(dev_priv->mipi_mmio_base + 0xb050)
-#define _MIPIC_INIT_COUNT		(dev_priv->mipi_mmio_base + 0xb850)
+#define _MIPIA_INIT_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb050)
+#define _MIPIC_INIT_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb850)
 #define MIPI_INIT_COUNT(port)		_MMIO_MIPI(port, _MIPIA_INIT_COUNT, _MIPIC_INIT_COUNT)
 #define  MASTER_INIT_TIMER_SHIFT			0
 #define  MASTER_INIT_TIMER_MASK				(0xffff << 0)
 
-#define _MIPIA_MAX_RETURN_PKT_SIZE	(dev_priv->mipi_mmio_base + 0xb054)
-#define _MIPIC_MAX_RETURN_PKT_SIZE	(dev_priv->mipi_mmio_base + 0xb854)
+#define _MIPIA_MAX_RETURN_PKT_SIZE	(_MIPI_MMIO_BASE(dev_priv) + 0xb054)
+#define _MIPIC_MAX_RETURN_PKT_SIZE	(_MIPI_MMIO_BASE(dev_priv) + 0xb854)
 #define MIPI_MAX_RETURN_PKT_SIZE(port)	_MMIO_MIPI(port, \
 			_MIPIA_MAX_RETURN_PKT_SIZE, _MIPIC_MAX_RETURN_PKT_SIZE)
 #define  MAX_RETURN_PKT_SIZE_SHIFT			0
 #define  MAX_RETURN_PKT_SIZE_MASK			(0x3ff << 0)
 
-#define _MIPIA_VIDEO_MODE_FORMAT	(dev_priv->mipi_mmio_base + 0xb058)
-#define _MIPIC_VIDEO_MODE_FORMAT	(dev_priv->mipi_mmio_base + 0xb858)
+#define _MIPIA_VIDEO_MODE_FORMAT	(_MIPI_MMIO_BASE(dev_priv) + 0xb058)
+#define _MIPIC_VIDEO_MODE_FORMAT	(_MIPI_MMIO_BASE(dev_priv) + 0xb858)
 #define MIPI_VIDEO_MODE_FORMAT(port)	_MMIO_MIPI(port, _MIPIA_VIDEO_MODE_FORMAT, _MIPIC_VIDEO_MODE_FORMAT)
 #define  RANDOM_DPI_DISPLAY_RESOLUTION			(1 << 4)
 #define  DISABLE_VIDEO_BTA				(1 << 3)
···
 #define  VIDEO_MODE_NON_BURST_WITH_SYNC_EVENTS		(2 << 0)
 #define  VIDEO_MODE_BURST				(3 << 0)
 
-#define _MIPIA_EOT_DISABLE		(dev_priv->mipi_mmio_base + 0xb05c)
-#define _MIPIC_EOT_DISABLE		(dev_priv->mipi_mmio_base + 0xb85c)
+#define _MIPIA_EOT_DISABLE		(_MIPI_MMIO_BASE(dev_priv) + 0xb05c)
+#define _MIPIC_EOT_DISABLE		(_MIPI_MMIO_BASE(dev_priv) + 0xb85c)
 #define MIPI_EOT_DISABLE(port)		_MMIO_MIPI(port, _MIPIA_EOT_DISABLE, _MIPIC_EOT_DISABLE)
 #define  BXT_DEFEATURE_DPI_FIFO_CTR			(1 << 9)
 #define  BXT_DPHY_DEFEATURE_EN				(1 << 8)
···
 #define  CLOCKSTOP					(1 << 1)
 #define  EOT_DISABLE					(1 << 0)
 
-#define _MIPIA_LP_BYTECLK		(dev_priv->mipi_mmio_base + 0xb060)
-#define _MIPIC_LP_BYTECLK		(dev_priv->mipi_mmio_base + 0xb860)
+#define _MIPIA_LP_BYTECLK		(_MIPI_MMIO_BASE(dev_priv) + 0xb060)
+#define _MIPIC_LP_BYTECLK		(_MIPI_MMIO_BASE(dev_priv) + 0xb860)
 #define MIPI_LP_BYTECLK(port)		_MMIO_MIPI(port, _MIPIA_LP_BYTECLK, _MIPIC_LP_BYTECLK)
 #define  LP_BYTECLK_SHIFT				0
 #define  LP_BYTECLK_MASK				(0xffff << 0)
 
-#define _MIPIA_TLPX_TIME_COUNT		(dev_priv->mipi_mmio_base + 0xb0a4)
-#define _MIPIC_TLPX_TIME_COUNT		(dev_priv->mipi_mmio_base + 0xb8a4)
+#define _MIPIA_TLPX_TIME_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb0a4)
+#define _MIPIC_TLPX_TIME_COUNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb8a4)
 #define MIPI_TLPX_TIME_COUNT(port)	 _MMIO_MIPI(port, _MIPIA_TLPX_TIME_COUNT, _MIPIC_TLPX_TIME_COUNT)
 
-#define _MIPIA_CLK_LANE_TIMING		(dev_priv->mipi_mmio_base + 0xb098)
-#define _MIPIC_CLK_LANE_TIMING		(dev_priv->mipi_mmio_base + 0xb898)
+#define _MIPIA_CLK_LANE_TIMING		(_MIPI_MMIO_BASE(dev_priv) + 0xb098)
+#define _MIPIC_CLK_LANE_TIMING		(_MIPI_MMIO_BASE(dev_priv) + 0xb898)
 #define MIPI_CLK_LANE_TIMING(port)	 _MMIO_MIPI(port, _MIPIA_CLK_LANE_TIMING, _MIPIC_CLK_LANE_TIMING)
 
 /* bits 31:0 */
-#define _MIPIA_LP_GEN_DATA		(dev_priv->mipi_mmio_base + 0xb064)
-#define _MIPIC_LP_GEN_DATA		(dev_priv->mipi_mmio_base + 0xb864)
+#define _MIPIA_LP_GEN_DATA		(_MIPI_MMIO_BASE(dev_priv) + 0xb064)
+#define _MIPIC_LP_GEN_DATA		(_MIPI_MMIO_BASE(dev_priv) + 0xb864)
 #define MIPI_LP_GEN_DATA(port)		_MMIO_MIPI(port, _MIPIA_LP_GEN_DATA, _MIPIC_LP_GEN_DATA)
 
 /* bits 31:0 */
-#define _MIPIA_HS_GEN_DATA		(dev_priv->mipi_mmio_base + 0xb068)
-#define _MIPIC_HS_GEN_DATA		(dev_priv->mipi_mmio_base + 0xb868)
+#define _MIPIA_HS_GEN_DATA		(_MIPI_MMIO_BASE(dev_priv) + 0xb068)
+#define _MIPIC_HS_GEN_DATA		(_MIPI_MMIO_BASE(dev_priv) + 0xb868)
 #define MIPI_HS_GEN_DATA(port)		_MMIO_MIPI(port, _MIPIA_HS_GEN_DATA, _MIPIC_HS_GEN_DATA)
 
-#define _MIPIA_LP_GEN_CTRL		(dev_priv->mipi_mmio_base + 0xb06c)
-#define _MIPIC_LP_GEN_CTRL		(dev_priv->mipi_mmio_base + 0xb86c)
+#define _MIPIA_LP_GEN_CTRL		(_MIPI_MMIO_BASE(dev_priv) + 0xb06c)
+#define _MIPIC_LP_GEN_CTRL		(_MIPI_MMIO_BASE(dev_priv) + 0xb86c)
 #define MIPI_LP_GEN_CTRL(port)		_MMIO_MIPI(port, _MIPIA_LP_GEN_CTRL, _MIPIC_LP_GEN_CTRL)
-#define _MIPIA_HS_GEN_CTRL		(dev_priv->mipi_mmio_base + 0xb070)
-#define _MIPIC_HS_GEN_CTRL		(dev_priv->mipi_mmio_base + 0xb870)
+#define _MIPIA_HS_GEN_CTRL		(_MIPI_MMIO_BASE(dev_priv) + 0xb070)
+#define _MIPIC_HS_GEN_CTRL		(_MIPI_MMIO_BASE(dev_priv) + 0xb870)
 #define MIPI_HS_GEN_CTRL(port)		_MMIO_MIPI(port, _MIPIA_HS_GEN_CTRL, _MIPIC_HS_GEN_CTRL)
 #define  LONG_PACKET_WORD_COUNT_SHIFT			8
 #define  LONG_PACKET_WORD_COUNT_MASK			(0xffff << 8)
···
 #define  DATA_TYPE_MASK					(0x3f << 0)
 /* data type values, see include/video/mipi_display.h */
 
-#define _MIPIA_GEN_FIFO_STAT		(dev_priv->mipi_mmio_base + 0xb074)
-#define _MIPIC_GEN_FIFO_STAT		(dev_priv->mipi_mmio_base + 0xb874)
+#define _MIPIA_GEN_FIFO_STAT		(_MIPI_MMIO_BASE(dev_priv) + 0xb074)
+#define _MIPIC_GEN_FIFO_STAT		(_MIPI_MMIO_BASE(dev_priv) + 0xb874)
 #define MIPI_GEN_FIFO_STAT(port)	_MMIO_MIPI(port, _MIPIA_GEN_FIFO_STAT, _MIPIC_GEN_FIFO_STAT)
 #define  DPI_FIFO_EMPTY					(1 << 28)
 #define  DBI_FIFO_EMPTY					(1 << 27)
···
 #define  HS_DATA_FIFO_HALF_EMPTY			(1 << 1)
 #define  HS_DATA_FIFO_FULL				(1 << 0)
 
-#define _MIPIA_HS_LS_DBI_ENABLE		(dev_priv->mipi_mmio_base + 0xb078)
-#define _MIPIC_HS_LS_DBI_ENABLE		(dev_priv->mipi_mmio_base + 0xb878)
+#define _MIPIA_HS_LS_DBI_ENABLE		(_MIPI_MMIO_BASE(dev_priv) + 0xb078)
+#define _MIPIC_HS_LS_DBI_ENABLE		(_MIPI_MMIO_BASE(dev_priv) + 0xb878)
 #define MIPI_HS_LP_DBI_ENABLE(port)	_MMIO_MIPI(port, _MIPIA_HS_LS_DBI_ENABLE, _MIPIC_HS_LS_DBI_ENABLE)
 #define  DBI_HS_LP_MODE_MASK				(1 << 0)
 #define  DBI_LP_MODE					(1 << 0)
 #define  DBI_HS_MODE					(0 << 0)
 
-#define _MIPIA_DPHY_PARAM		(dev_priv->mipi_mmio_base + 0xb080)
-#define _MIPIC_DPHY_PARAM		(dev_priv->mipi_mmio_base + 0xb880)
+#define _MIPIA_DPHY_PARAM		(_MIPI_MMIO_BASE(dev_priv) + 0xb080)
+#define _MIPIC_DPHY_PARAM		(_MIPI_MMIO_BASE(dev_priv) + 0xb880)
 #define MIPI_DPHY_PARAM(port)		_MMIO_MIPI(port, _MIPIA_DPHY_PARAM, _MIPIC_DPHY_PARAM)
 #define  EXIT_ZERO_COUNT_SHIFT				24
 #define  EXIT_ZERO_COUNT_MASK				(0x3f << 24)
···
 #define  PREPARE_COUNT_SHIFT				0
 #define  PREPARE_COUNT_MASK				(0x3f << 0)
 
-#define _MIPIA_DBI_BW_CTRL		(dev_priv->mipi_mmio_base + 0xb084)
-#define _MIPIC_DBI_BW_CTRL		(dev_priv->mipi_mmio_base + 0xb884)
+#define _MIPIA_DBI_BW_CTRL		(_MIPI_MMIO_BASE(dev_priv) + 0xb084)
+#define _MIPIC_DBI_BW_CTRL		(_MIPI_MMIO_BASE(dev_priv) + 0xb884)
 #define MIPI_DBI_BW_CTRL(port)		_MMIO_MIPI(port, _MIPIA_DBI_BW_CTRL, _MIPIC_DBI_BW_CTRL)
 
-#define _MIPIA_CLK_LANE_SWITCH_TIME_CNT		(dev_priv->mipi_mmio_base + 0xb088)
-#define _MIPIC_CLK_LANE_SWITCH_TIME_CNT		(dev_priv->mipi_mmio_base + 0xb888)
+#define _MIPIA_CLK_LANE_SWITCH_TIME_CNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb088)
+#define _MIPIC_CLK_LANE_SWITCH_TIME_CNT		(_MIPI_MMIO_BASE(dev_priv) + 0xb888)
 #define MIPI_CLK_LANE_SWITCH_TIME_CNT(port)	_MMIO_MIPI(port, _MIPIA_CLK_LANE_SWITCH_TIME_CNT, _MIPIC_CLK_LANE_SWITCH_TIME_CNT)
 #define  LP_HS_SSW_CNT_SHIFT				16
 #define  LP_HS_SSW_CNT_MASK				(0xffff << 16)
 #define  HS_LP_PWR_SW_CNT_SHIFT				0
 #define  HS_LP_PWR_SW_CNT_MASK				(0xffff << 0)
 
-#define _MIPIA_STOP_STATE_STALL		(dev_priv->mipi_mmio_base + 0xb08c)
-#define _MIPIC_STOP_STATE_STALL		(dev_priv->mipi_mmio_base + 0xb88c)
+#define _MIPIA_STOP_STATE_STALL		(_MIPI_MMIO_BASE(dev_priv) + 0xb08c)
+#define _MIPIC_STOP_STATE_STALL		(_MIPI_MMIO_BASE(dev_priv) + 0xb88c)
 #define MIPI_STOP_STATE_STALL(port)	_MMIO_MIPI(port, _MIPIA_STOP_STATE_STALL, _MIPIC_STOP_STATE_STALL)
 #define  STOP_STATE_STALL_COUNTER_SHIFT			0
 #define  STOP_STATE_STALL_COUNTER_MASK			(0xff << 0)
 
-#define _MIPIA_INTR_STAT_REG_1		(dev_priv->mipi_mmio_base + 0xb090)
-#define _MIPIC_INTR_STAT_REG_1		(dev_priv->mipi_mmio_base + 0xb890)
+#define _MIPIA_INTR_STAT_REG_1		(_MIPI_MMIO_BASE(dev_priv) + 0xb090)
+#define _MIPIC_INTR_STAT_REG_1		(_MIPI_MMIO_BASE(dev_priv) + 0xb890)
 #define MIPI_INTR_STAT_REG_1(port)	_MMIO_MIPI(port, _MIPIA_INTR_STAT_REG_1, _MIPIC_INTR_STAT_REG_1)
-#define _MIPIA_INTR_EN_REG_1		(dev_priv->mipi_mmio_base + 0xb094)
-#define _MIPIC_INTR_EN_REG_1		(dev_priv->mipi_mmio_base + 0xb894)
+#define _MIPIA_INTR_EN_REG_1		(_MIPI_MMIO_BASE(dev_priv) + 0xb094)
+#define _MIPIC_INTR_EN_REG_1		(_MIPI_MMIO_BASE(dev_priv) + 0xb894)
 #define MIPI_INTR_EN_REG_1(port)	_MMIO_MIPI(port, _MIPIA_INTR_EN_REG_1, _MIPIC_INTR_EN_REG_1)
 #define  RX_CONTENTION_DETECTED				(1 << 0)
 
 /* XXX: only pipe A ?!? */
-#define MIPIA_DBI_TYPEC_CTRL		(dev_priv->mipi_mmio_base + 0xb100)
+#define MIPIA_DBI_TYPEC_CTRL		(_MIPI_MMIO_BASE(dev_priv) + 0xb100)
 #define  DBI_TYPEC_ENABLE				(1 << 31)
 #define  DBI_TYPEC_WIP					(1 << 30)
 #define  DBI_TYPEC_OPTION_SHIFT				28
···
 
 /* MIPI adapter registers */
 
-#define _MIPIA_CTRL			(dev_priv->mipi_mmio_base + 0xb104)
-#define _MIPIC_CTRL			(dev_priv->mipi_mmio_base + 0xb904)
+#define _MIPIA_CTRL			(_MIPI_MMIO_BASE(dev_priv) + 0xb104)
+#define _MIPIC_CTRL			(_MIPI_MMIO_BASE(dev_priv) + 0xb904)
 #define MIPI_CTRL(port)			_MMIO_MIPI(port, _MIPIA_CTRL, _MIPIC_CTRL)
 #define  ESCAPE_CLOCK_DIVIDER_SHIFT			5 /* A only */
 #define  ESCAPE_CLOCK_DIVIDER_MASK			(3 << 5)
···
 #define  GLK_MIPIIO_PORT_POWERED			(1 << 1) /* RO */
 #define  GLK_MIPIIO_ENABLE				(1 << 0)
 
-#define _MIPIA_DATA_ADDRESS		(dev_priv->mipi_mmio_base + 0xb108)
-#define _MIPIC_DATA_ADDRESS		(dev_priv->mipi_mmio_base + 0xb908)
+#define _MIPIA_DATA_ADDRESS		(_MIPI_MMIO_BASE(dev_priv) + 0xb108)
+#define _MIPIC_DATA_ADDRESS		(_MIPI_MMIO_BASE(dev_priv) + 0xb908)
 #define MIPI_DATA_ADDRESS(port)		_MMIO_MIPI(port, _MIPIA_DATA_ADDRESS, _MIPIC_DATA_ADDRESS)
 #define  DATA_MEM_ADDRESS_SHIFT				5
 #define  DATA_MEM_ADDRESS_MASK				(0x7ffffff << 5)
 #define  DATA_VALID					(1 << 0)
 
-#define _MIPIA_DATA_LENGTH		(dev_priv->mipi_mmio_base + 0xb10c)
-#define _MIPIC_DATA_LENGTH		(dev_priv->mipi_mmio_base + 0xb90c)
+#define _MIPIA_DATA_LENGTH		(_MIPI_MMIO_BASE(dev_priv) + 0xb10c)
+#define _MIPIC_DATA_LENGTH		(_MIPI_MMIO_BASE(dev_priv) + 0xb90c)
 #define MIPI_DATA_LENGTH(port)		_MMIO_MIPI(port, _MIPIA_DATA_LENGTH, _MIPIC_DATA_LENGTH)
 #define  DATA_LENGTH_SHIFT				0
 #define  DATA_LENGTH_MASK				(0xfffff << 0)
 
-#define _MIPIA_COMMAND_ADDRESS		(dev_priv->mipi_mmio_base + 0xb110)
-#define _MIPIC_COMMAND_ADDRESS		(dev_priv->mipi_mmio_base + 0xb910)
+#define _MIPIA_COMMAND_ADDRESS		(_MIPI_MMIO_BASE(dev_priv) + 0xb110)
+#define _MIPIC_COMMAND_ADDRESS		(_MIPI_MMIO_BASE(dev_priv) + 0xb910)
 #define MIPI_COMMAND_ADDRESS(port)	_MMIO_MIPI(port, _MIPIA_COMMAND_ADDRESS, _MIPIC_COMMAND_ADDRESS)
 #define  COMMAND_MEM_ADDRESS_SHIFT			5
 #define  COMMAND_MEM_ADDRESS_MASK			(0x7ffffff << 5)
···
 #define  MEMORY_WRITE_DATA_FROM_PIPE_RENDERING		(1 << 1)
 #define  COMMAND_VALID					(1 << 0)
 
-#define _MIPIA_COMMAND_LENGTH		(dev_priv->mipi_mmio_base + 0xb114)
-#define _MIPIC_COMMAND_LENGTH		(dev_priv->mipi_mmio_base + 0xb914)
+#define _MIPIA_COMMAND_LENGTH		(_MIPI_MMIO_BASE(dev_priv) + 0xb114)
+#define _MIPIC_COMMAND_LENGTH		(_MIPI_MMIO_BASE(dev_priv) + 0xb914)
 #define MIPI_COMMAND_LENGTH(port)	_MMIO_MIPI(port, _MIPIA_COMMAND_LENGTH, _MIPIC_COMMAND_LENGTH)
 #define  COMMAND_LENGTH_SHIFT(n)			(8 * (n)) /* n: 0...3 */
 #define  COMMAND_LENGTH_MASK(n)				(0xff << (8 * (n)))
 
-#define _MIPIA_READ_DATA_RETURN0	(dev_priv->mipi_mmio_base + 0xb118)
-#define _MIPIC_READ_DATA_RETURN0	(dev_priv->mipi_mmio_base + 0xb918)
+#define _MIPIA_READ_DATA_RETURN0	(_MIPI_MMIO_BASE(dev_priv) + 0xb118)
+#define _MIPIC_READ_DATA_RETURN0	(_MIPI_MMIO_BASE(dev_priv) + 0xb918)
 #define MIPI_READ_DATA_RETURN(port, n) _MMIO(_MIPI(port, _MIPIA_READ_DATA_RETURN0, _MIPIC_READ_DATA_RETURN0) + 4 * (n)) /* n: 0...7 */
 
-#define _MIPIA_READ_DATA_VALID		(dev_priv->mipi_mmio_base + 0xb138)
-#define _MIPIC_READ_DATA_VALID		(dev_priv->mipi_mmio_base + 0xb938)
+#define _MIPIA_READ_DATA_VALID		(_MIPI_MMIO_BASE(dev_priv) + 0xb138)
+#define _MIPIC_READ_DATA_VALID		(_MIPI_MMIO_BASE(dev_priv) + 0xb938)
 #define MIPI_READ_DATA_VALID(port)	_MMIO_MIPI(port, _MIPIA_READ_DATA_VALID, _MIPIC_READ_DATA_VALID)
 #define  READ_DATA_VALID(n)				(1 << (n))
 

drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c

···
 		drm_puts(p, "no P-state info available\n");
 	}
 
-	drm_printf(p, "Current CD clock frequency: %d kHz\n", i915->cdclk.hw.cdclk);
-	drm_printf(p, "Max CD clock frequency: %d kHz\n", i915->max_cdclk_freq);
+	drm_printf(p, "Current CD clock frequency: %d kHz\n", i915->display.cdclk.hw.cdclk);
+	drm_printf(p, "Max CD clock frequency: %d kHz\n", i915->display.cdclk.max_cdclk_freq);
 	drm_printf(p, "Max pixel clock frequency: %d kHz\n", i915->max_dotclk_freq);
 
 	intel_runtime_pm_put(uncore->rpm, wakeref);

drivers/gpu/drm/i915/gvt/edid.c

···
  *
  */
 
+#include "display/intel_gmbus_regs.h"
+#include "gvt.h"
 #include "i915_drv.h"
 #include "i915_reg.h"
-#include "gvt.h"
 
 #define GMBUS1_TOTAL_BYTES_SHIFT 16
 #define GMBUS1_TOTAL_BYTES_MASK 0x1ff

drivers/gpu/drm/i915/i915_debugfs.c

···
 		seq_puts(m, "Runtime power management not supported\n");
 
 	seq_printf(m, "Runtime power status: %s\n",
-		   str_enabled_disabled(!dev_priv->power_domains.init_wakeref));
+		   str_enabled_disabled(!dev_priv->display.power.domains.init_wakeref));
 
 	seq_printf(m, "GPU idle: %s\n", str_yes_no(!to_gt(dev_priv)->awake));
 	seq_printf(m, "IRQs disabled: %s\n",

drivers/gpu/drm/i915/i915_driver.c

···
 #include "display/intel_pps.h"
 #include "display/intel_sprite.h"
 #include "display/intel_vga.h"
+#include "display/skl_watermark.h"
 
 #include "gem/i915_gem_context.h"
 #include "gem/i915_gem_create.h"
···
 
 	spin_lock_init(&dev_priv->irq_lock);
 	spin_lock_init(&dev_priv->gpu_error.lock);
-	mutex_init(&dev_priv->backlight_lock);
+	mutex_init(&dev_priv->display.backlight.lock);
 
 	mutex_init(&dev_priv->sb_lock);
 	cpu_latency_qos_add_request(&dev_priv->sb_qos, PM_QOS_DEFAULT_VALUE);
···
 	mutex_init(&dev_priv->display.audio.mutex);
 	mutex_init(&dev_priv->display.wm.wm_mutex);
 	mutex_init(&dev_priv->display.pps.mutex);
-	mutex_init(&dev_priv->hdcp_comp_mutex);
+	mutex_init(&dev_priv->display.hdcp.comp_mutex);
 
 	i915_memcpy_init_early(dev_priv);
 	intel_runtime_pm_init_early(&dev_priv->runtime_pm);
···
 
 void i915_driver_remove(struct drm_i915_private *i915)
 {
-	disable_rpm_wakeref_asserts(&i915->runtime_pm);
+	intel_wakeref_t wakeref;
+
+	wakeref = intel_runtime_pm_get(&i915->runtime_pm);
 
 	i915_driver_unregister(i915);
 
···
 
 	i915_driver_hw_remove(i915);
 
-	enable_rpm_wakeref_asserts(&i915->runtime_pm);
+	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
 }
 
 static void i915_driver_release(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
+	intel_wakeref_t wakeref;
 
 	if (!dev_priv->do_release)
 		return;
 
-	disable_rpm_wakeref_asserts(rpm);
+	wakeref = intel_runtime_pm_get(rpm);
 
 	i915_gem_driver_release(dev_priv);
 
···
 
 	i915_driver_mmio_release(dev_priv);
 
-	enable_rpm_wakeref_asserts(rpm);
+	intel_runtime_pm_put(rpm, wakeref);
+
 	intel_runtime_pm_driver_release(rpm);
 
 	i915_driver_late_release(dev_priv);
···
 		intel_hpd_poll_disable(dev_priv);
 	}
 
-	intel_enable_ipc(dev_priv);
+	skl_watermark_ipc_update(dev_priv);
 
 	enable_rpm_wakeref_asserts(rpm);
 

drivers/gpu/drm/i915/i915_drv.h

···
 
 #include <linux/pm_qos.h>
 
-#include <drm/drm_connector.h>
 #include <drm/ttm/ttm_device.h>
 
-#include "display/intel_cdclk.h"
 #include "display/intel_display.h"
 #include "display/intel_display_core.h"
-#include "display/intel_display_power.h"
-#include "display/intel_dsb.h"
-#include "display/intel_fbc.h"
-#include "display/intel_frontbuffer.h"
-#include "display/intel_global_state.h"
-#include "display/intel_opregion.h"
 
 #include "gem/i915_gem_context_types.h"
 #include "gem/i915_gem_lmem.h"
···
 struct drm_i915_clock_gating_funcs;
 struct drm_i915_gem_object;
 struct drm_i915_private;
-struct intel_cdclk_config;
-struct intel_cdclk_state;
-struct intel_cdclk_vals;
 struct intel_connector;
 struct intel_dp;
 struct intel_encoder;
···
 	 I915_GEM_DOMAIN_INSTRUCTION | \
 	 I915_GEM_DOMAIN_VERTEX)
 
-struct sdvo_device_mapping {
-	u8 initialized;
-	u8 dvo_port;
-	u8 slave_addr;
-	u8 dvo_wiring;
-	u8 i2c_pin;
-	u8 ddc_pin;
-};
-
 #define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */
 
 #define GEM_QUIRK_PIN_SWIZZLED_PAGES	BIT(0)
-
-#define QUIRK_LVDS_SSC_DISABLE (1<<1)
-#define QUIRK_INVERT_BRIGHTNESS (1<<2)
-#define QUIRK_BACKLIGHT_PRESENT (1<<3)
-#define QUIRK_INCREASE_T12_DELAY (1<<6)
-#define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
-#define QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK (1<<8)
 
 struct i915_suspend_saved_registers {
 	u32 saveDSPARB;
···
 	return i915_fence_context_timeout(i915, U64_MAX);
 }
 
-/* Amount of SAGV/QGV points, BSpec precisely defines this */
-#define I915_NUM_QGV_POINTS 8
-
 #define HAS_HW_SAGV_WM(i915) (DISPLAY_VER(i915) >= 13 && !IS_DGFX(i915))
-
-/* Amount of PSF GV points, BSpec precisely defines this */
-#define I915_NUM_PSF_GV_POINTS 3
-
-struct intel_vbt_data {
-	/* bdb version */
-	u16 version;
-
-	/* Feature bits */
-	unsigned int int_tv_support:1;
-	unsigned int int_crt_support:1;
-	unsigned int lvds_use_ssc:1;
-	unsigned int int_lvds_support:1;
-	unsigned int display_clock_mode:1;
-	unsigned int fdi_rx_polarity_inverted:1;
-	int lvds_ssc_freq;
-	enum drm_panel_orientation orientation;
-
-	bool override_afc_startup;
-	u8 override_afc_startup_val;
-
-	int crt_ddc_pin;
-
-	struct list_head display_devices;
-	struct list_head bdb_blocks;
-
-	struct intel_bios_encoder_data *ports[I915_MAX_PORTS]; /* Non-NULL if port present. */
-	struct sdvo_device_mapping sdvo_mappings[2];
-};
-
-struct i915_frontbuffer_tracking {
-	spinlock_t lock;
-
-	/*
-	 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
-	 * scheduled flips.
-	 */
-	unsigned busy_bits;
-	unsigned flip_bits;
-};
 
 struct i915_virtual_gpu {
 	struct mutex lock; /* serialises sending of g2v_notify command pkts */
···
 
 	struct intel_wopcm wopcm;
 
-	/* MMIO base address for MIPI regs */
-	u32 mipi_mmio_base;
-
 	struct pci_dev *bridge_dev;
 
 	struct rb_root uabi_engines;
···
 	};
 	u32 pipestat_irq_mask[I915_MAX_PIPES];
 
-	struct intel_fbc *fbc[I915_MAX_FBCS];
-	struct intel_opregion opregion;
-	struct intel_vbt_data vbt;
-
 	bool preserve_bios_swizzle;
-
-	/* backlight registers and fields in struct intel_panel */
-	struct mutex backlight_lock;
 
 	unsigned int fsb_freq, mem_freq, is_ddr3;
 	unsigned int skl_preferred_vco_freq;
-	unsigned int max_cdclk_freq;
 
 	unsigned int max_dotclk_freq;
 	unsigned int hpll_freq;
-	unsigned int fdi_pll_freq;
 	unsigned int czclk_freq;
-
-	struct {
-		/* The current hardware cdclk configuration */
-		struct intel_cdclk_config hw;
-
-		/* cdclk, divider, and ratio table from bspec */
-		const struct intel_cdclk_vals *table;
-
-		struct intel_global_obj obj;
-	} cdclk;
-
-	struct {
-		/* The current hardware dbuf configuration */
-		u8 enabled_slices;
-
-		struct intel_global_obj obj;
-	} dbuf;
 
 	/**
 	 * wq - Driver workqueue for GEM.
···
 	 */
 	struct workqueue_struct *wq;
 
-	/* ordered wq for modesets */
-	struct workqueue_struct *modeset_wq;
-	/* unbound hipri wq for page flips/plane updates */
-	struct workqueue_struct *flip_wq;
-
 	/* pm private clock gating functions */
 	const struct drm_i915_clock_gating_funcs *clock_gating_funcs;
 
···
 	unsigned short pch_id;
 
 	unsigned long gem_quirks;
-	unsigned long quirks;
 
 	struct drm_atomic_state *modeset_restore_state;
 	struct drm_modeset_acquire_ctx reset_ctx;
···
 	/* Kernel Modesetting */
 
 	struct list_head global_obj_list;
-
-	struct i915_frontbuffer_tracking fb_tracking;
-
-	struct intel_atomic_helper {
-		struct llist_head free_list;
-		struct work_struct free_work;
-	} atomic_helper;
 
 	bool mchbar_need_disable;
 
···
 	 */
 	u32 edram_size_mb;
 
-	struct i915_power_domains power_domains;
-
 	struct i915_gpu_error gpu_error;
 
-	struct drm_property *broadcast_rgb_property;
-	struct drm_property *force_audio_property;
-
-	u32 fdi_rx_config;
-
-	/* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
-	u32 chv_phy_control;
 	/*
 	 * Shadows for CHV DPLL_MD regs to keep the state
 	 * checker somewhat working in the presence hardware
···
 		u8 num_qgv_points;
 		u8 num_psf_gv_points;
 	} dram_info;
-
-	struct intel_bw_info {
-		/* for each QGV point */
-		unsigned int deratedbw[I915_NUM_QGV_POINTS];
-		/* for each PSF GV point */
-		unsigned int psf_bw[I915_NUM_PSF_GV_POINTS];
-		u8 num_qgv_points;
-		u8 num_psf_gv_points;
-		u8 num_planes;
-	} max_bw[6];
-
-	struct intel_global_obj bw_obj;
 
 	struct intel_runtime_pm runtime_pm;
 
···
 
 	bool irq_enabled;
 
-	union {
-		/* perform PHY state sanity checks? */
-		bool chv_phy_assert[2];
-
-		/*
-		 * DG2: Mask of PHYs that were not calibrated by the firmware
-		 * and should not be used.
-		 */
-		u8 snps_phy_failed_calibration;
-	};
+	/*
+	 * DG2: Mask of PHYs that were not calibrated by the firmware
+	 * and should not be used.
+	 */
+	u8 snps_phy_failed_calibration;
 
 	bool ipc_enabled;
 
 	struct i915_pmu pmu;
 
 	struct i915_drm_clients clients;
-
-	struct i915_hdcp_comp_master *hdcp_master;
-	bool hdcp_comp_added;
-
-	/* Mutex to protect the above hdcp component related values. */
-	struct mutex hdcp_comp_mutex;
 
 	/* The TTM device structure. */
 	struct ttm_device bdev;
···
 	     (engine__) && (engine__)->uabi_class == (class__); \
 	     (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
 
-#define I915_GTT_OFFSET_NONE ((u32)-1)
-
 #define INTEL_INFO(dev_priv)	(&(dev_priv)->__info)
 #define RUNTIME_INFO(dev_priv)	(&(dev_priv)->__runtime)
 #define DRIVER_CAPS(dev_priv)	(&(dev_priv)->caps)
···
 
 #define IP_VER(ver, rel)		((ver) << 8 | (rel))
 
-#define GRAPHICS_VER(i915)		(RUNTIME_INFO(i915)->graphics.ver)
-#define GRAPHICS_VER_FULL(i915)		IP_VER(RUNTIME_INFO(i915)->graphics.ver, \
-					       RUNTIME_INFO(i915)->graphics.rel)
+#define GRAPHICS_VER(i915)		(RUNTIME_INFO(i915)->graphics.ip.ver)
+#define GRAPHICS_VER_FULL(i915)		IP_VER(RUNTIME_INFO(i915)->graphics.ip.ver, \
+					       RUNTIME_INFO(i915)->graphics.ip.rel)
 #define IS_GRAPHICS_VER(i915, from, until) \
 	(GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
 
-#define MEDIA_VER(i915)			(INTEL_INFO(i915)->media.ver)
-#define MEDIA_VER_FULL(i915)		IP_VER(INTEL_INFO(i915)->media.ver, \
-					       INTEL_INFO(i915)->media.rel)
+#define MEDIA_VER(i915)			(RUNTIME_INFO(i915)->media.ip.ver)
+#define MEDIA_VER_FULL(i915)		IP_VER(RUNTIME_INFO(i915)->media.ip.ver, \
+					       RUNTIME_INFO(i915)->media.ip.rel)
 #define IS_MEDIA_VER(i915, from, until) \
 	(MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
 
-#define DISPLAY_VER(i915)	(INTEL_INFO(i915)->display.ver)
+#define DISPLAY_VER(i915)	(RUNTIME_INFO(i915)->display.ip.ver)
 #define IS_DISPLAY_VER(i915, from, until) \
 	(DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
 
···
 #define HAS_DP_MST(dev_priv)	(INTEL_INFO(dev_priv)->display.has_dp_mst)
 #define HAS_DP20(dev_priv)	(IS_DG2(dev_priv) || DISPLAY_VER(dev_priv) >= 14)
 
+#define HAS_DOUBLE_BUFFERED_M_N(dev_priv)	(DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
+
 #define HAS_CDCLK_CRAWL(dev_priv)	 (INTEL_INFO(dev_priv)->display.has_cdclk_crawl)
 #define HAS_DDI(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_ddi)
 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
···
 #define HAS_3D_PIPELINE(i915)	(INTEL_INFO(i915)->has_3d_pipeline)
 
 #define HAS_ONE_EU_PER_FUSE_BIT(i915)	(INTEL_INFO(i915)->has_one_eu_per_fuse_bit)
-
-/* i915_gem.c */
-void i915_gem_init_early(struct drm_i915_private *dev_priv);
-void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
-
-static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
-{
-	/*
-	 * A single pass should suffice to release all the freed objects (along
-	 * most call paths) , but be a little more paranoid in that freeing
-	 * the objects does take a little amount of time, during which the rcu
-	 * callbacks could have added new objects into the freed list, and
-	 * armed the work again.
-	 */
-	while (atomic_read(&i915->mm.free_count)) {
-		flush_work(&i915->mm.free_work);
-		flush_delayed_work(&i915->bdev.wq);
-		rcu_barrier();
-	}
-}
-
-static inline void i915_gem_drain_workqueue(struct drm_i915_private *i915)
-{
-	/*
-	 * Similar to objects above (see i915_gem_drain_freed-objects), in
-	 * general we have workers that are armed by RCU and then rearm
-	 * themselves in their callbacks. To be paranoid, we need to
-	 * drain the workqueue a second time after waiting for the RCU
-	 * grace period so that we catch work queued via RCU from the first
-	 * pass. As neither drain_workqueue() nor flush_workqueue() report
-	 * a result, we make an assumption that we only don't require more
-	 * than 3 passes to catch all _recursive_ RCU delayed work.
-	 *
-	 */
-	int pass = 3;
-	do {
-		flush_workqueue(i915->wq);
-		rcu_barrier();
-		i915_gem_drain_freed_objects(i915);
-	} while (--pass);
-	drain_workqueue(i915->wq);
-}
-
-struct i915_vma * __must_check
-i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
-			    struct i915_gem_ww_ctx *ww,
-			    const struct i915_gtt_view *view,
-			    u64 size, u64 alignment, u64 flags);
-
-struct i915_vma * __must_check
-i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
-			 const struct i915_gtt_view *view,
-			 u64 size, u64 alignment, u64 flags);
-
-int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
-			   unsigned long flags);
-#define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
-#define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
-#define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
-#define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
-#define I915_GEM_OBJECT_UNBIND_ASYNC BIT(4)
-
-void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
-
-int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);
-
-int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
-void i915_gem_driver_register(struct drm_i915_private *i915);
-void i915_gem_driver_unregister(struct drm_i915_private *i915);
-void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
-void i915_gem_driver_release(struct drm_i915_private *dev_priv);
-
-int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
 
 /* intel_device_info.c */
 static inline struct intel_device_info *

drivers/gpu/drm/i915/i915_gem.c

···
 	return err;
 }
 
+/*
+ * A single pass should suffice to release all the freed objects (along most
+ * call paths), but be a little more paranoid in that freeing the objects does
+ * take a little amount of time, during which the rcu callbacks could have added
+ * new objects into the freed list, and armed the work again.
+ */
+void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
+{
+	while (atomic_read(&i915->mm.free_count)) {
+		flush_work(&i915->mm.free_work);
+		flush_delayed_work(&i915->bdev.wq);
+		rcu_barrier();
+	}
+}
+
+/*
+ * Similar to objects above (see i915_gem_drain_freed-objects), in general we
+ * have workers that are armed by RCU and then rearm themselves in their
+ * callbacks. To be paranoid, we need to drain the workqueue a second time after
+ * waiting for the RCU grace period so that we catch work queued via RCU from
+ * the first pass. As neither drain_workqueue() nor flush_workqueue() report a
+ * result, we make an assumption that we only don't require more than 3 passes
+ * to catch all _recursive_ RCU delayed work.
+ */
+void i915_gem_drain_workqueue(struct drm_i915_private *i915)
+{
+	int i;
+
+	for (i = 0; i < 3; i++) {
+		flush_workqueue(i915->wq);
+		rcu_barrier();
+		i915_gem_drain_freed_objects(i915);
+	}
+
+	drain_workqueue(i915->wq);
+}
+
 int i915_gem_init(struct drm_i915_private *dev_priv)
 {
 	int ret;
···
 	i915_gem_init__mm(dev_priv);
 	i915_gem_init__contexts(dev_priv);
 
-	spin_lock_init(&dev_priv->fb_tracking.lock);
+	spin_lock_init(&dev_priv->display.fb_tracking.lock);
 }
 
 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv)

drivers/gpu/drm/i915/i915_gem.h

···
 #define __I915_GEM_H__
 
 #include <linux/bug.h>
+#include <linux/types.h>
 
 #include <drm/drm_drv.h>
 
 #include "i915_utils.h"
 
+struct drm_file;
+struct drm_i915_gem_object;
 struct drm_i915_private;
+struct i915_gem_ww_ctx;
+struct i915_gtt_view;
+struct i915_vma;
+
+void i915_gem_init_early(struct drm_i915_private *i915);
+void i915_gem_cleanup_early(struct drm_i915_private *i915);
+
+void i915_gem_drain_freed_objects(struct drm_i915_private *i915);
+void i915_gem_drain_workqueue(struct drm_i915_private *i915);
+
+struct i915_vma * __must_check
+i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
+			    struct i915_gem_ww_ctx *ww,
+			    const struct i915_gtt_view *view,
+			    u64 size, u64 alignment, u64 flags);
+
+struct i915_vma * __must_check
+i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
+			 const struct i915_gtt_view *view,
+			 u64 size, u64 alignment, u64 flags);
+
+int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
+			   unsigned long flags);
+#define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
+#define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
+#define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
+#define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
+#define I915_GEM_OBJECT_UNBIND_ASYNC BIT(4)
+
+void i915_gem_runtime_suspend(struct drm_i915_private *i915);
+
+int __must_check i915_gem_init(struct drm_i915_private *i915);
+void i915_gem_driver_register(struct drm_i915_private *i915);
+void i915_gem_driver_unregister(struct drm_i915_private *i915);
+void i915_gem_driver_remove(struct drm_i915_private *i915);
+void i915_gem_driver_release(struct drm_i915_private *i915);
+
+int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
+
+/* FIXME: All of the below belong somewhere else. */
 
 #ifdef CONFIG_DRM_I915_DEBUG_GEM
 

drivers/gpu/drm/i915/i915_irq.c

···
 
 static bool i915_has_asle(struct drm_i915_private *dev_priv)
 {
-	if (!dev_priv->opregion.asle)
+	if (!dev_priv->display.opregion.asle)
 		return false;
 
 	return IS_PINEVIEW(dev_priv) || IS_MOBILE(dev_priv);

drivers/gpu/drm/i915/i915_pci.c

···
 
 #define PLATFORM(x) .platform = (x)
 #define GEN(x) \
-	.__runtime.graphics.ver = (x), \
-	.media.ver = (x), \
-	.display.ver = (x)
+	.__runtime.graphics.ip.ver = (x), \
+	.__runtime.media.ip.ver = (x), \
+	.__runtime.display.ip.ver = (x)
 
 #define I845_PIPE_OFFSETS \
 	.display.pipe_offsets = { \
···
 static const struct intel_device_info glk_info = {
 	GEN9_LP_FEATURES,
 	PLATFORM(INTEL_GEMINILAKE),
-	.display.ver = 10,
+	.__runtime.display.ip.ver = 10,
 	.display.dbuf.size = 1024 - 4, /* 4 blocks for bypass path allocation */
 	GLK_COLORS,
 };
···
 static const struct intel_device_info dg1_info = {
 	GEN12_FEATURES,
 	DGFX_FEATURES,
-	.__runtime.graphics.rel = 10,
+	.__runtime.graphics.ip.rel = 10,
 	PLATFORM(INTEL_DG1),
 	.__runtime.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
 	.require_force_probe = 1,
···
 	.display.has_hotplug = 1,						\
 	.display.has_ipc = 1,							\
 	.display.has_psr = 1,							\
-	.display.ver = 13,							\
+	.__runtime.display.ip.ver = 13,							\
 	.__runtime.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),	\
 	.display.pipe_offsets = {						\
 		[TRANSCODER_A] = PIPE_A_OFFSET,					\
···
 		I915_GTT_PAGE_SIZE_2M
 
 #define XE_HP_FEATURES \
-	.__runtime.graphics.ver = 12, \
-	.__runtime.graphics.rel = 50, \
+	.__runtime.graphics.ip.ver = 12, \
+	.__runtime.graphics.ip.rel = 50, \
 	XE_HP_PAGE_SIZES, \
 	.dma_mask_size = 46, \
 	.has_3d_pipeline = 1, \
···
 	.__runtime.ppgtt_type = INTEL_PPGTT_FULL
 
 #define XE_HPM_FEATURES \
-	.media.ver = 12, \
-	.media.rel = 50
+	.__runtime.media.ip.ver = 12, \
+	.__runtime.media.ip.rel = 50
 
 __maybe_unused
 static const struct intel_device_info xehpsdv_info = {
···
 	XE_HP_FEATURES, \
 	XE_HPM_FEATURES, \
 	DGFX_FEATURES, \
-	.__runtime.graphics.rel = 55, \
-	.media.rel = 55, \
+	.__runtime.graphics.ip.rel = 55, \
+	.__runtime.media.ip.rel = 55, \
 	PLATFORM(INTEL_DG2), \
 	.has_4tile = 1, \
 	.has_64k_pages = 1, \
···
 	XE_HPC_FEATURES,
 	XE_HPM_FEATURES,
 	DGFX_FEATURES,
-	.__runtime.graphics.rel = 60,
-	.media.rel = 60,
+	.__runtime.graphics.ip.rel = 60,
+	.__runtime.media.ip.rel = 60,
 	PLATFORM(INTEL_PONTEVECCHIO),
 	.display = { 0 },
 	.has_flat_ccs = 0,
···
 
 #define XE_LPDP_FEATURES	\
 	XE_LPD_FEATURES,	\
-	.display.ver = 14,	\
+	.__runtime.display.ip.ver = 14,	\
 	.display.has_cdclk_crawl = 1, \
 	.__runtime.fbc_mask = BIT(INTEL_FBC_A) | BIT(INTEL_FBC_B)
 
···
 	 * Real graphics IP version will be obtained from hardware GMD_ID
 	 * register.  Value provided here is just for sanity checking.
 	 */
-	.__runtime.graphics.ver = 12,
-	.__runtime.graphics.rel = 70,
-	.media.ver = 13,
+	.__runtime.graphics.ip.ver = 12,
+	.__runtime.graphics.ip.rel = 70,
+	.__runtime.media.ip.ver = 13,
 	PLATFORM(INTEL_METEORLAKE),
 	.display.has_modular_fia = 1,
 	.extra_gt_list = xelpmp_extra_gt,
···
 
 static bool intel_mmio_bar_valid(struct pci_dev *pdev, struct intel_device_info *intel_info)
 {
-	int gttmmaddr_bar = intel_info->__runtime.graphics.ver == 2 ? GEN2_GTTMMADR_BAR : GTTMMADR_BAR;
+	int gttmmaddr_bar = intel_info->__runtime.graphics.ip.ver == 2 ? GEN2_GTTMMADR_BAR : GTTMMADR_BAR;
 
 	return i915_pci_resource_valid(pdev, gttmmaddr_bar);
 }

drivers/gpu/drm/i915/i915_perf.c

···
 {
 	struct i915_perf *perf = stream->perf;
 
-	BUG_ON(stream != perf->exclusive_stream);
+	if (WARN_ON(stream != perf->exclusive_stream))
+		return;
 
 	/*
 	 * Unset exclusive_stream first, it will be checked while disabling

drivers/gpu/drm/i915/i915_reg.h

···
 #define MBUS_DBOX_REGULATE_B2B_TRANSACTIONS_EN	REG_BIT(16) /* tgl+ */
 #define MBUS_DBOX_BW_CREDIT_MASK		REG_GENMASK(15, 14)
 #define MBUS_DBOX_BW_CREDIT(x)			REG_FIELD_PREP(MBUS_DBOX_BW_CREDIT_MASK, x)
+#define MBUS_DBOX_BW_4CREDITS_MTL		REG_FIELD_PREP(MBUS_DBOX_BW_CREDIT_MASK, 0x2)
+#define MBUS_DBOX_BW_8CREDITS_MTL		REG_FIELD_PREP(MBUS_DBOX_BW_CREDIT_MASK, 0x3)
 #define MBUS_DBOX_B_CREDIT_MASK			REG_GENMASK(12, 8)
 #define MBUS_DBOX_B_CREDIT(x)			REG_FIELD_PREP(MBUS_DBOX_B_CREDIT_MASK, x)
+#define MBUS_DBOX_I_CREDIT_MASK			REG_GENMASK(7, 5)
+#define MBUS_DBOX_I_CREDIT(x)			REG_FIELD_PREP(MBUS_DBOX_I_CREDIT_MASK, x)
 #define MBUS_DBOX_A_CREDIT_MASK			REG_GENMASK(3, 0)
 #define MBUS_DBOX_A_CREDIT(x)			REG_FIELD_PREP(MBUS_DBOX_A_CREDIT_MASK, x)
 
···
 #define   FBC_REND_CACHE_CLEAN		REG_BIT(1)
 
 /*
- * GPIO regs
- */
-#define GPIO(gpio)		_MMIO(dev_priv->display.gmbus.mmio_base + 0x5010 + \
-				      4 * (gpio))
-
-# define GPIO_CLOCK_DIR_MASK		(1 << 0)
-# define GPIO_CLOCK_DIR_IN		(0 << 1)
-# define GPIO_CLOCK_DIR_OUT		(1 << 1)
-# define GPIO_CLOCK_VAL_MASK		(1 << 2)
-# define GPIO_CLOCK_VAL_OUT		(1 << 3)
-# define GPIO_CLOCK_VAL_IN		(1 << 4)
-# define GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
-# define GPIO_DATA_DIR_MASK		(1 << 8)
-# define GPIO_DATA_DIR_IN		(0 << 9)
-# define GPIO_DATA_DIR_OUT		(1 << 9)
-# define GPIO_DATA_VAL_MASK		(1 << 10)
-# define GPIO_DATA_VAL_OUT		(1 << 11)
-# define GPIO_DATA_VAL_IN		(1 << 12)
-# define GPIO_DATA_PULLUP_DISABLE	(1 << 13)
-
-#define GMBUS0			_MMIO(dev_priv->display.gmbus.mmio_base + 0x5100) /* clock/port select */
-#define   GMBUS_AKSV_SELECT	(1 << 11)
-#define   GMBUS_RATE_100KHZ	(0 << 8)
-#define   GMBUS_RATE_50KHZ	(1 << 8)
-#define   GMBUS_RATE_400KHZ	(2 << 8) /* reserved on Pineview */
-#define   GMBUS_RATE_1MHZ	(3 << 8) /* reserved on Pineview */
-#define   GMBUS_HOLD_EXT	(1 << 7) /* 300ns hold time, rsvd on Pineview */
-#define   GMBUS_BYTE_CNT_OVERRIDE (1 << 6)
-
-#define GMBUS1			_MMIO(dev_priv->display.gmbus.mmio_base + 0x5104) /* command/status */
-#define   GMBUS_SW_CLR_INT	(1 << 31)
-#define   GMBUS_SW_RDY		(1 << 30)
-#define   GMBUS_ENT		(1 << 29) /* enable timeout */
-#define   GMBUS_CYCLE_NONE	(0 << 25)
-#define   GMBUS_CYCLE_WAIT	(1 << 25)
-#define   GMBUS_CYCLE_INDEX	(2 << 25)
-#define   GMBUS_CYCLE_STOP	(4 << 25)
-#define   GMBUS_BYTE_COUNT_SHIFT 16
-#define   GMBUS_BYTE_COUNT_MAX   256U
-#define   GEN9_GMBUS_BYTE_COUNT_MAX 511U
-#define   GMBUS_SLAVE_INDEX_SHIFT 8
-#define   GMBUS_SLAVE_ADDR_SHIFT 1
-#define   GMBUS_SLAVE_READ	(1 << 0)
-#define   GMBUS_SLAVE_WRITE	(0 << 0)
-#define GMBUS2			_MMIO(dev_priv->display.gmbus.mmio_base + 0x5108) /* status */
-#define   GMBUS_INUSE		(1 << 15)
-#define   GMBUS_HW_WAIT_PHASE	(1 << 14)
-#define   GMBUS_STALL_TIMEOUT	(1 << 13)
-#define   GMBUS_INT		(1 << 12)
-#define   GMBUS_HW_RDY		(1 << 11)
-#define   GMBUS_SATOER		(1 << 10)
-#define   GMBUS_ACTIVE		(1 << 9)
-#define GMBUS3			_MMIO(dev_priv->display.gmbus.mmio_base + 0x510c) /* data buffer bytes 3-0 */
-#define GMBUS4			_MMIO(dev_priv->display.gmbus.mmio_base + 0x5110) /* interrupt mask (Pineview+) */
-#define   GMBUS_SLAVE_TIMEOUT_EN (1 << 4)
-#define   GMBUS_NAK_EN		(1 << 3)
-#define   GMBUS_IDLE_EN		(1 << 2)
-#define   GMBUS_HW_WAIT_EN	(1 << 1)
-#define   GMBUS_HW_RDY_EN	(1 << 0)
-#define GMBUS5			_MMIO(dev_priv->display.gmbus.mmio_base + 0x5120) /* byte index */
-#define   GMBUS_2BYTE_INDEX_EN	(1 << 31)
-
-/*
  * Clock control & power management
  */
 #define _DPLL_A (DISPLAY_MMIO_BASE(dev_priv) + 0x6014)
···
 #define  DSTATE_PLL_D3_OFF			(1 << 3)
 #define  DSTATE_GFX_CLOCK_GATING		(1 << 1)
 #define  DSTATE_DOT_CLOCK_GATING		(1 << 0)
-#define DSPCLK_GATE_D	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x6200)
+#define DSPCLK_GATE_D(__i915)		_MMIO(DISPLAY_MMIO_BASE(__i915) + 0x6200)
 # define DPUNIT_B_CLOCK_GATE_DISABLE		(1 << 30) /* 965 */
 # define VSUNIT_CLOCK_GATE_DISABLE		(1 << 29) /* 965 */
 # define VRHUNIT_CLOCK_GATE_DISABLE		(1 << 28) /* 965 */
···
 #define DP_AUX_CH_CTL(aux_ch)	_MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL)
 #define DP_AUX_CH_DATA(aux_ch, i)	_MMIO(_PORT(aux_ch, _DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
 
+#define _XELPDP_USBC1_AUX_CH_CTL	0x16F210
+#define _XELPDP_USBC2_AUX_CH_CTL	0x16F410
+#define _XELPDP_USBC3_AUX_CH_CTL	0x16F610
+#define _XELPDP_USBC4_AUX_CH_CTL	0x16F810
+
+#define XELPDP_DP_AUX_CH_CTL(aux_ch)		_MMIO(_PICK(aux_ch, \
+						       _DPA_AUX_CH_CTL, \
+						       _DPB_AUX_CH_CTL, \
+						       0, /* port/aux_ch C is non-existent */ \
+						       _XELPDP_USBC1_AUX_CH_CTL, \
+						       _XELPDP_USBC2_AUX_CH_CTL, \
+						       _XELPDP_USBC3_AUX_CH_CTL, \
+						       _XELPDP_USBC4_AUX_CH_CTL))
+
+#define _XELPDP_USBC1_AUX_CH_DATA1      0x16F214
+#define _XELPDP_USBC2_AUX_CH_DATA1      0x16F414
+#define _XELPDP_USBC3_AUX_CH_DATA1      0x16F614
+#define _XELPDP_USBC4_AUX_CH_DATA1      0x16F814
+
+#define XELPDP_DP_AUX_CH_DATA(aux_ch, i)	_MMIO(_PICK(aux_ch, \
+						       _DPA_AUX_CH_DATA1, \
+						       _DPB_AUX_CH_DATA1, \
+						       0, /* port/aux_ch C is non-existent */ \
+						       _XELPDP_USBC1_AUX_CH_DATA1, \
+						       _XELPDP_USBC2_AUX_CH_DATA1, \
+						       _XELPDP_USBC3_AUX_CH_DATA1, \
+						       _XELPDP_USBC4_AUX_CH_DATA1) + (i) * 4)
+
 #define   DP_AUX_CH_CTL_SEND_BUSY	    (1 << 31)
 #define   DP_AUX_CH_CTL_DONE		    (1 << 30)
 #define   DP_AUX_CH_CTL_INTERRUPT	    (1 << 29)
···
 #define   DP_AUX_CH_CTL_RECEIVE_ERROR	    (1 << 25)
 #define   DP_AUX_CH_CTL_MESSAGE_SIZE_MASK    (0x1f << 20)
 #define   DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT   20
+#define   XELPDP_DP_AUX_CH_CTL_POWER_REQUEST REG_BIT(19)
+#define   XELPDP_DP_AUX_CH_CTL_POWER_STATUS  REG_BIT(18)
 #define   DP_AUX_CH_CTL_PRECHARGE_2US_MASK   (0xf << 16)
 #define   DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT  16
 #define   DP_AUX_CH_CTL_AUX_AKSV_SELECT	    (1 << 15)
···
 					    [TRANSCODER_B] = _CHICKEN_TRANS_B, \
 					    [TRANSCODER_C] = _CHICKEN_TRANS_C, \
 					    [TRANSCODER_D] = _CHICKEN_TRANS_D))
+
+#define _MTL_CHICKEN_TRANS_A	0x604e0
+#define _MTL_CHICKEN_TRANS_B	0x614e0
+#define MTL_CHICKEN_TRANS(trans)	_MMIO_TRANS((trans), \
+						    _MTL_CHICKEN_TRANS_A, \
+						    _MTL_CHICKEN_TRANS_B)
+
 #define  HSW_FRAME_START_DELAY_MASK	REG_GENMASK(28, 27)
 #define  HSW_FRAME_START_DELAY(x)	REG_FIELD_PREP(HSW_FRAME_START_DELAY_MASK, x)
 #define  VSC_DATA_SEL_SOFTWARE_CONTROL	REG_BIT(25) /* GLK */
···
 #define     GEN6_DECODE_RC6_VID(vids)		(((vids) * 5) + 245)
 #define   BDW_PCODE_DISPLAY_FREQ_CHANGE_REQ	0x18
 #define   GEN9_PCODE_READ_MEM_LATENCY		0x6
-#define     GEN9_MEM_LATENCY_LEVEL_MASK		0xFF
-#define     GEN9_MEM_LATENCY_LEVEL_1_5_SHIFT	8
-#define     GEN9_MEM_LATENCY_LEVEL_2_6_SHIFT	16
-#define     GEN9_MEM_LATENCY_LEVEL_3_7_SHIFT	24
+#define     GEN9_MEM_LATENCY_LEVEL_3_7_MASK	REG_GENMASK(31, 24)
+#define     GEN9_MEM_LATENCY_LEVEL_2_6_MASK	REG_GENMASK(23, 16)
+#define     GEN9_MEM_LATENCY_LEVEL_1_5_MASK	REG_GENMASK(15, 8)
+#define     GEN9_MEM_LATENCY_LEVEL_0_4_MASK	REG_GENMASK(7, 0)
 #define   SKL_PCODE_LOAD_HDCP_KEYS		0x5
 #define   SKL_PCODE_CDCLK_CONTROL		0x7
 #define     SKL_CDCLK_PREPARE_FOR_CHANGE	0x3
···
 
 /* CDCLK_CTL */
 #define CDCLK_CTL			_MMIO(0x46000)
-#define  CDCLK_FREQ_SEL_MASK		(3 << 26)
-#define  CDCLK_FREQ_450_432		(0 << 26)
-#define  CDCLK_FREQ_540			(1 << 26)
-#define  CDCLK_FREQ_337_308		(2 << 26)
-#define  CDCLK_FREQ_675_617		(3 << 26)
-#define  BXT_CDCLK_CD2X_DIV_SEL_MASK	(3 << 22)
-#define  BXT_CDCLK_CD2X_DIV_SEL_1	(0 << 22)
-#define  BXT_CDCLK_CD2X_DIV_SEL_1_5	(1 << 22)
-#define  BXT_CDCLK_CD2X_DIV_SEL_2	(2 << 22)
-#define  BXT_CDCLK_CD2X_DIV_SEL_4	(3 << 22)
+#define  CDCLK_FREQ_SEL_MASK		REG_GENMASK(27, 26)
+#define  CDCLK_FREQ_450_432		REG_FIELD_PREP(CDCLK_FREQ_SEL_MASK, 0)
+#define  CDCLK_FREQ_540		REG_FIELD_PREP(CDCLK_FREQ_SEL_MASK, 1)
+#define  CDCLK_FREQ_337_308		REG_FIELD_PREP(CDCLK_FREQ_SEL_MASK, 2)
+#define  CDCLK_FREQ_675_617		REG_FIELD_PREP(CDCLK_FREQ_SEL_MASK, 3)
+#define  BXT_CDCLK_CD2X_DIV_SEL_MASK	REG_GENMASK(23, 22)
+#define  BXT_CDCLK_CD2X_DIV_SEL_1	REG_FIELD_PREP(BXT_CDCLK_CD2X_DIV_SEL_MASK, 0)
+#define  BXT_CDCLK_CD2X_DIV_SEL_1_5	REG_FIELD_PREP(BXT_CDCLK_CD2X_DIV_SEL_MASK, 1)
+#define  BXT_CDCLK_CD2X_DIV_SEL_2	REG_FIELD_PREP(BXT_CDCLK_CD2X_DIV_SEL_MASK, 2)
+#define  BXT_CDCLK_CD2X_DIV_SEL_4	REG_FIELD_PREP(BXT_CDCLK_CD2X_DIV_SEL_MASK, 3)
 #define  BXT_CDCLK_CD2X_PIPE(pipe)	((pipe) << 20)
 #define  CDCLK_DIVMUX_CD_OVERRIDE	(1 << 19)
 #define  BXT_CDCLK_CD2X_PIPE_NONE	BXT_CDCLK_CD2X_PIPE(3)
···
 #define MTL_LATENCY_LP4_LP5		_MMIO(0x45788)
 #define  MTL_LATENCY_LEVEL_EVEN_MASK	REG_GENMASK(12, 0)
 #define  MTL_LATENCY_LEVEL_ODD_MASK	REG_GENMASK(28, 16)
+
+#define MTL_LATENCY_SAGV		_MMIO(0x4578b)
+#define   MTL_LATENCY_QCLK_SAGV		REG_GENMASK(12, 0)
+
+#define MTL_MEM_SS_INFO_GLOBAL			_MMIO(0x45700)
+#define   MTL_N_OF_ENABLED_QGV_POINTS_MASK	REG_GENMASK(11, 8)
+#define   MTL_N_OF_POPULATED_CH_MASK		REG_GENMASK(7, 4)
+#define   MTL_DDR_TYPE_MASK			REG_GENMASK(3, 0)
+
+#define MTL_MEM_SS_INFO_QGV_POINT_LOW(point)	 _MMIO(0x45710 + (point) * 2)
+#define   MTL_TRCD_MASK			REG_GENMASK(31, 24)
+#define   MTL_TRP_MASK			REG_GENMASK(23, 16)
+#define   MTL_DCLK_MASK			REG_GENMASK(15, 0)
+
+#define MTL_MEM_SS_INFO_QGV_POINT_HIGH(point)	 _MMIO(0x45714 + (point) * 2)
+#define   MTL_TRAS_MASK			REG_GENMASK(16, 8)
+#define   MTL_TRDPRE_MASK		REG_GENMASK(7, 0)
 
 #endif /* _I915_REG_H_ */

drivers/gpu/drm/i915/i915_sw_fence.c

···
 			  const char *name,
 			  struct lock_class_key *key)
 {
-	BUG_ON(!fn);
-
 	__init_waitqueue_head(&fence->wait, name, key);
 	fence->fn = fn;
 #ifdef CONFIG_DRM_I915_SW_FENCE_CHECK_DAG

drivers/gpu/drm/i915/i915_sw_fence.h

···
 do {								\
 	static struct lock_class_key __key;			\
 								\
+	BUILD_BUG_ON((fn) == NULL);				\
 	__i915_sw_fence_init((fence), (fn), #fence, &__key);	\
 } while (0)
 #else
 #define i915_sw_fence_init(fence, fn)				\
-	__i915_sw_fence_init((fence), (fn), NULL, NULL)
+do {								\
+	BUILD_BUG_ON((fn) == NULL);				\
+	__i915_sw_fence_init((fence), (fn), NULL, NULL);	\
+} while (0)
 #endif
 
 void i915_sw_fence_reinit(struct i915_sw_fence *fence);

drivers/gpu/drm/i915/intel_device_info.c

···
 			     const struct intel_runtime_info *runtime,
 			     struct drm_printer *p)
 {
-	if (runtime->graphics.rel)
-		drm_printf(p, "graphics version: %u.%02u\n", runtime->graphics.ver,
-			   runtime->graphics.rel);
+	if (runtime->graphics.ip.rel)
+		drm_printf(p, "graphics version: %u.%02u\n",
+			   runtime->graphics.ip.ver,
+			   runtime->graphics.ip.rel);
 	else
-		drm_printf(p, "graphics version: %u\n", runtime->graphics.ver);
+		drm_printf(p, "graphics version: %u\n",
+			   runtime->graphics.ip.ver);
 
-	if (info->media.rel)
-		drm_printf(p, "media version: %u.%02u\n", info->media.ver, info->media.rel);
+	if (runtime->media.ip.rel)
+		drm_printf(p, "media version: %u.%02u\n",
+			   runtime->media.ip.ver,
+			   runtime->media.ip.rel);
 	else
-		drm_printf(p, "media version: %u\n", info->media.ver);
+		drm_printf(p, "media version: %u\n",
+			   runtime->media.ip.ver);
 
-	if (info->display.rel)
-		drm_printf(p, "display version: %u.%02u\n", info->display.ver, info->display.rel);
+	if (runtime->display.ip.rel)
+		drm_printf(p, "display version: %u.%02u\n",
+			   runtime->display.ip.ver,
+			   runtime->display.ip.rel);
 	else
-		drm_printf(p, "display version: %u\n", info->display.ver);
+		drm_printf(p, "display version: %u\n",
+			   runtime->display.ip.ver);
 
 	drm_printf(p, "gt: %d\n", info->gt);
 	drm_printf(p, "memory-regions: %x\n", runtime->memory_regions);

drivers/gpu/drm/i915/intel_device_info.h

···
 };
 
 struct intel_runtime_info {
-	struct ip_version graphics;
+	struct {
+		struct ip_version ip;
+	} graphics;
+	struct {
+		struct ip_version ip;
+	} media;
+	struct {
+		struct ip_version ip;
+	} display;
 
 	/*
 	 * Platform mask is used for optimizing or-ed IS_PLATFORM calls into
···
 };
 
 struct intel_device_info {
-	struct ip_version media;
-
 	enum intel_platform platform;
 
 	unsigned int dma_mask_size; /* available DMA address bits */
···
 #undef DEFINE_FLAG
 
 	struct {
-		u8 ver;
-		u8 rel;
-
 		u8 abox_mask;
 
 		struct {

drivers/gpu/drm/i915/intel_dram.c

···
 	return icl_pcode_read_mem_global_info(i915);
 }
 
+static int xelpdp_get_dram_info(struct drm_i915_private *i915)
+{
+	u32 val = intel_uncore_read(&i915->uncore, MTL_MEM_SS_INFO_GLOBAL);
+	struct dram_info *dram_info = &i915->dram_info;
+
+	val = REG_FIELD_GET(MTL_DDR_TYPE_MASK, val);
+	switch (val) {
+	case 0:
+		dram_info->type = INTEL_DRAM_DDR4;
+		break;
+	case 1:
+		dram_info->type = INTEL_DRAM_DDR5;
+		break;
+	case 2:
+		dram_info->type = INTEL_DRAM_LPDDR5;
+		break;
+	case 3:
+		dram_info->type = INTEL_DRAM_LPDDR4;
+		break;
+	case 4:
+		dram_info->type = INTEL_DRAM_DDR3;
+		break;
+	case 5:
+		dram_info->type = INTEL_DRAM_LPDDR3;
+		break;
+	default:
+		MISSING_CASE(val);
+		return -EINVAL;
+	}
+
+	dram_info->num_channels = REG_FIELD_GET(MTL_N_OF_POPULATED_CH_MASK, val);
+	dram_info->num_qgv_points = REG_FIELD_GET(MTL_N_OF_ENABLED_QGV_POINTS_MASK, val);
+	/* PSF GV points not supported in D14+ */
+
+	return 0;
+}
+
 void intel_dram_detect(struct drm_i915_private *i915)
 {
 	struct dram_info *dram_info = &i915->dram_info;
···
 	 */
 	dram_info->wm_lv_0_adjust_needed = !IS_GEN9_LP(i915);
 
-	if (GRAPHICS_VER(i915) >= 12)
+	if (DISPLAY_VER(i915) >= 14)
+		ret = xelpdp_get_dram_info(i915);
+	else if (GRAPHICS_VER(i915) >= 12)
 		ret = gen12_get_dram_info(i915);
 	else if (GRAPHICS_VER(i915) >= 11)
 		ret = gen11_get_dram_info(i915);

drivers/gpu/drm/i915/intel_pm.c

···
  *
  */
 
-#include <linux/module.h>
-#include <linux/string_helpers.h>
-#include <linux/pm_runtime.h>
-
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_blend.h>
-#include <drm/drm_fourcc.h>
-
-#include "display/intel_atomic.h"
-#include "display/intel_atomic_plane.h"
-#include "display/intel_bw.h"
 #include "display/intel_de.h"
 #include "display/intel_display_trace.h"
-#include "display/intel_display_types.h"
-#include "display/intel_fb.h"
-#include "display/intel_fbc.h"
-#include "display/intel_sprite.h"
-#include "display/skl_universal_plane.h"
+#include "display/skl_watermark.h"
 
 #include "gt/intel_engine_regs.h"
 #include "gt/intel_gt_regs.h"
-#include "gt/intel_llc.h"
 
 #include "i915_drv.h"
-#include "i915_fixed.h"
-#include "i915_irq.h"
 #include "intel_mchbar_regs.h"
-#include "intel_pcode.h"
 #include "intel_pm.h"
 #include "vlv_sideband.h"
-#include "../../../platform/x86/intel_ips.h"
-
-static void skl_sagv_disable(struct drm_i915_private *dev_priv);
 
 struct drm_i915_clock_gating_funcs {
 	void (*init_clock_gating)(struct drm_i915_private *i915);
-};
-
-/* Stores plane specific WM parameters */
-struct skl_wm_params {
-	bool x_tiled, y_tiled;
-	bool rc_surface;
-	bool is_planar;
-	u32 width;
-	u8 cpp;
-	u32 plane_pixel_rate;
-	u32 y_min_scanlines;
-	u32 plane_bytes_per_line;
-	uint_fixed_16_16_t plane_blocks_per_line;
-	uint_fixed_16_16_t y_tile_minimum;
-	u32 linetime_us;
-	u32 dbuf_block_size;
 };
 
 /* used in computing the new watermarks state */
···
 	return dev_priv->display.wm.max_level + 1;
 }
 
-static bool intel_wm_plane_visible(const struct intel_crtc_state *crtc_state,
-				   const struct intel_plane_state *plane_state)
+bool intel_wm_plane_visible(const struct intel_crtc_state *crtc_state,
+			    const struct intel_plane_state *plane_state)
 {
 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
 
···
 	result->enable = true;
 }
 
-static void
-adjust_wm_latency(struct drm_i915_private *i915,
-		  u16 wm[], int max_level, int read_latency)
+static void hsw_read_wm_latency(struct drm_i915_private *i915, u16 wm[])
 {
-	bool wm_lv_0_adjust_needed = i915->dram_info.wm_lv_0_adjust_needed;
-	int i, level;
+	u64 sskpd;
 
-	/*
-	 * If a level n (n > 1) has a 0us latency, all levels m (m >= n)
-	 * need to be disabled. We make sure to sanitize the values out
-	 * of the punit to satisfy this requirement.
-	 */
-	for (level = 1; level <= max_level; level++) {
-		if (wm[level] == 0) {
-			for (i = level + 1; i <= max_level; i++)
-				wm[i] = 0;
+	sskpd = intel_uncore_read64(&i915->uncore, MCH_SSKPD);
 
-			max_level = level - 1;
-			break;
-		}
-	}
-
-	/*
-	 * WaWmMemoryReadLatency
-	 *
-	 * punit doesn't take into account the read latency so we need
-	 * to add proper adjustement to each valid level we retrieve
-	 * from the punit when level 0 response data is 0us.
-	 */
-	if (wm[0] == 0) {
-		for (level = 0; level <= max_level; level++)
-			wm[level] += read_latency;
-	}
-
-	/*
-	 * WA Level-0 adjustment for 16GB DIMMs: SKL+
-	 * If we could not get dimm info enable this WA to prevent from
-	 * any underrun. If not able to get Dimm info assume 16GB dimm
-	 * to avoid any underrun.
-	 */
-	if (wm_lv_0_adjust_needed)
-		wm[0] += 1;
+	wm[0] = REG_FIELD_GET64(SSKPD_NEW_WM0_MASK_HSW, sskpd);
+	if (wm[0] == 0)
+		wm[0] = REG_FIELD_GET64(SSKPD_OLD_WM0_MASK_HSW, sskpd);
+	wm[1] = REG_FIELD_GET64(SSKPD_WM1_MASK_HSW, sskpd);
+	wm[2] = REG_FIELD_GET64(SSKPD_WM2_MASK_HSW, sskpd);
+	wm[3] = REG_FIELD_GET64(SSKPD_WM3_MASK_HSW, sskpd);
+	wm[4] = REG_FIELD_GET64(SSKPD_WM4_MASK_HSW, sskpd);
 }
 
-static void intel_read_wm_latency(struct drm_i915_private *dev_priv,
-				  u16 wm[])
+static void snb_read_wm_latency(struct drm_i915_private *i915, u16 wm[])
 {
-	struct intel_uncore *uncore = &dev_priv->uncore;
-	int max_level = ilk_wm_max_level(dev_priv);
+	u32 sskpd;
 
-	if (DISPLAY_VER(dev_priv) >= 14) {
-		u32 val;
+	sskpd = intel_uncore_read(&i915->uncore, MCH_SSKPD);
 
-		val = intel_uncore_read(uncore, MTL_LATENCY_LP0_LP1);
-		wm[0] = REG_FIELD_GET(MTL_LATENCY_LEVEL_EVEN_MASK, val);
-		wm[1] = REG_FIELD_GET(MTL_LATENCY_LEVEL_ODD_MASK, val);
-		val = intel_uncore_read(uncore, MTL_LATENCY_LP2_LP3);
-		wm[2] = REG_FIELD_GET(MTL_LATENCY_LEVEL_EVEN_MASK, val);
-		wm[3] = REG_FIELD_GET(MTL_LATENCY_LEVEL_ODD_MASK, val);
-		val = intel_uncore_read(uncore, MTL_LATENCY_LP4_LP5);
-		wm[4] = REG_FIELD_GET(MTL_LATENCY_LEVEL_EVEN_MASK, val);
-		wm[5] = REG_FIELD_GET(MTL_LATENCY_LEVEL_ODD_MASK, val);
+	wm[0] = REG_FIELD_GET(SSKPD_WM0_MASK_SNB, sskpd);
+	wm[1] = REG_FIELD_GET(SSKPD_WM1_MASK_SNB, sskpd);
+	wm[2] = REG_FIELD_GET(SSKPD_WM2_MASK_SNB, sskpd);
+	wm[3] = REG_FIELD_GET(SSKPD_WM3_MASK_SNB, sskpd);
+}
 
-		adjust_wm_latency(dev_priv, wm, max_level, 6);
-	} else if (DISPLAY_VER(dev_priv) >= 9) {
-		int read_latency = DISPLAY_VER(dev_priv) >= 12 ? 3 : 2;
-		int mult = IS_DG2(dev_priv) ? 2 : 1;
-		u32 val;
-		int ret;
+static void ilk_read_wm_latency(struct drm_i915_private *i915, u16 wm[])
+{
+	u32 mltr;
 
-		/* read the first set of memory latencies[0:3] */
-		val = 0; /* data0 to be programmed to 0 for first set */
-		ret = snb_pcode_read(&dev_priv->uncore, GEN9_PCODE_READ_MEM_LATENCY,
-				     &val, NULL);
+	mltr = intel_uncore_read(&i915->uncore, MLTR_ILK);
 
-		if (ret) {
-			drm_err(&dev_priv->drm,
-				"SKL Mailbox read error = %d\n", ret);
-			return;
-		}
-
-		wm[0] = (val & GEN9_MEM_LATENCY_LEVEL_MASK) * mult;
-		wm[1] = ((val >> GEN9_MEM_LATENCY_LEVEL_1_5_SHIFT) &
-				GEN9_MEM_LATENCY_LEVEL_MASK) * mult;
-		wm[2] = ((val >> GEN9_MEM_LATENCY_LEVEL_2_6_SHIFT) &
-				GEN9_MEM_LATENCY_LEVEL_MASK) * mult;
-		wm[3] = ((val >> GEN9_MEM_LATENCY_LEVEL_3_7_SHIFT) &
-				GEN9_MEM_LATENCY_LEVEL_MASK) * mult;
-
-		/* read the second set of memory latencies[4:7] */
-		val = 1; /* data0 to be programmed to 1 for second set */
-		ret = snb_pcode_read(&dev_priv->uncore, GEN9_PCODE_READ_MEM_LATENCY,
-				     &val, NULL);
-		if (ret) {
-			drm_err(&dev_priv->drm,
-				"SKL Mailbox read error = %d\n", ret);
-			return;
-		}
-
-		wm[4] = (val & GEN9_MEM_LATENCY_LEVEL_MASK) * mult;
-		wm[5] = ((val >> GEN9_MEM_LATENCY_LEVEL_1_5_SHIFT) &
-				GEN9_MEM_LATENCY_LEVEL_MASK) * mult;
-		wm[6] = ((val >> GEN9_MEM_LATENCY_LEVEL_2_6_SHIFT) &
-				GEN9_MEM_LATENCY_LEVEL_MASK) * mult;
-		wm[7] = ((val >> GEN9_MEM_LATENCY_LEVEL_3_7_SHIFT) &
-				GEN9_MEM_LATENCY_LEVEL_MASK) * mult;
-
-		adjust_wm_latency(dev_priv, wm, max_level, read_latency);
-	} else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
-		u64 sskpd = intel_uncore_read64(uncore, MCH_SSKPD);
-
-		wm[0] = REG_FIELD_GET64(SSKPD_NEW_WM0_MASK_HSW, sskpd);
-		if (wm[0] == 0)
-			wm[0] = REG_FIELD_GET64(SSKPD_OLD_WM0_MASK_HSW, sskpd);
-		wm[1] = REG_FIELD_GET64(SSKPD_WM1_MASK_HSW, sskpd);
-		wm[2] = REG_FIELD_GET64(SSKPD_WM2_MASK_HSW, sskpd);
-		wm[3] = REG_FIELD_GET64(SSKPD_WM3_MASK_HSW, sskpd);
-		wm[4] = REG_FIELD_GET64(SSKPD_WM4_MASK_HSW, sskpd);
-	} else if (DISPLAY_VER(dev_priv) >= 6) {
-		u32 sskpd = intel_uncore_read(uncore, MCH_SSKPD);
-
-		wm[0] = REG_FIELD_GET(SSKPD_WM0_MASK_SNB, sskpd);
-		wm[1] = REG_FIELD_GET(SSKPD_WM1_MASK_SNB, sskpd);
-		wm[2] = REG_FIELD_GET(SSKPD_WM2_MASK_SNB, sskpd);
-		wm[3] = REG_FIELD_GET(SSKPD_WM3_MASK_SNB, sskpd);
-	} else if (DISPLAY_VER(dev_priv) >= 5) {
-		u32 mltr = intel_uncore_read(uncore, MLTR_ILK);
-
-		/* ILK primary LP0 latency is 700 ns */
-		wm[0] = 7;
-		wm[1] = REG_FIELD_GET(MLTR_WM1_MASK, mltr);
-		wm[2] = REG_FIELD_GET(MLTR_WM2_MASK, mltr);
-	} else {
-		MISSING_CASE(INTEL_DEVID(dev_priv));
-	}
+	/* ILK primary LP0 latency is 700 ns */
+	wm[0] = 7;
+	wm[1] = REG_FIELD_GET(MLTR_WM1_MASK, mltr);
+	wm[2] = REG_FIELD_GET(MLTR_WM2_MASK, mltr);
 }
 
 static void intel_fixup_spr_wm_latency(struct drm_i915_private *dev_priv,
···
 		return 2;
 }
 
-static void intel_print_wm_latency(struct drm_i915_private *dev_priv,
-				   const char *name,
-				   const u16 wm[])
+void intel_print_wm_latency(struct drm_i915_private *dev_priv,
+			    const char *name, const u16 wm[])
 {
 	int level, max_level = ilk_wm_max_level(dev_priv);
 
···
 
 static void ilk_setup_wm_latency(struct drm_i915_private *dev_priv)
 {
-	intel_read_wm_latency(dev_priv, dev_priv->display.wm.pri_latency);
+	if (IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
+		hsw_read_wm_latency(dev_priv, dev_priv->display.wm.pri_latency);
+	else if (DISPLAY_VER(dev_priv) >= 6)
+		snb_read_wm_latency(dev_priv, dev_priv->display.wm.pri_latency);
+	else
+		ilk_read_wm_latency(dev_priv, dev_priv->display.wm.pri_latency);
 
 	memcpy(dev_priv->display.wm.spr_latency, dev_priv->display.wm.pri_latency,
 	       sizeof(dev_priv->display.wm.pri_latency));
···
 		snb_wm_latency_quirk(dev_priv);
 		snb_wm_lp3_irq_quirk(dev_priv);
 	}
-}
-
-static void skl_setup_wm_latency(struct drm_i915_private *dev_priv)
-{
-	intel_read_wm_latency(dev_priv, dev_priv->display.wm.skl_latency);
-	intel_print_wm_latency(dev_priv, "Gen9 Plane", dev_priv->display.wm.skl_latency);
 }
 
 static bool ilk_validate_pipe_wm(const struct drm_i915_private *dev_priv,
···
 	return _ilk_disable_lp_wm(dev_priv, WM_DIRTY_LP_ALL);
 }
 
-u8 intel_enabled_dbuf_slices_mask(struct drm_i915_private *dev_priv)
-{
-	u8 enabled_slices = 0;
-	enum dbuf_slice slice;
-
-	for_each_dbuf_slice(dev_priv, slice) {
-		if (intel_uncore_read(&dev_priv->uncore,
-				      DBUF_CTL_S(slice)) & DBUF_POWER_STATE)
-			enabled_slices |= BIT(slice);
-	}
-
-	return enabled_slices;
-}
-
-/*
- * FIXME: We still don't have the proper code detect if we need to apply the WA,
- * so assume we'll always need it in order to avoid underruns.
- */
-static bool skl_needs_memory_bw_wa(struct drm_i915_private *dev_priv)
-{
-	return DISPLAY_VER(dev_priv) == 9;
-}
-
-static bool
-intel_has_sagv(struct drm_i915_private *dev_priv)
-{
-	return DISPLAY_VER(dev_priv) >= 9 && !IS_LP(dev_priv) &&
-		dev_priv->display.sagv.status != I915_SAGV_NOT_CONTROLLED;
-}
-
-static u32
-intel_sagv_block_time(struct drm_i915_private *dev_priv)
-{
-	if (DISPLAY_VER(dev_priv) >= 12) {
-		u32 val = 0;
-		int ret;
-
-		ret = snb_pcode_read(&dev_priv->uncore,
-				     GEN12_PCODE_READ_SAGV_BLOCK_TIME_US,
-				     &val, NULL);
-		if (ret) {
-			drm_dbg_kms(&dev_priv->drm, "Couldn't read SAGV block time!\n");
-			return 0;
-		}
-
-		return val;
-	} else if (DISPLAY_VER(dev_priv) == 11) {
-		return 10;
-	} else if (DISPLAY_VER(dev_priv) == 9 && !IS_LP(dev_priv)) {
-		return 30;
-	} else {
-		return 0;
-	}
-}
-
-static void intel_sagv_init(struct drm_i915_private *i915)
-{
-	if (!intel_has_sagv(i915))
-		i915->display.sagv.status = I915_SAGV_NOT_CONTROLLED;
-
-	/*
-	 * Probe to see if we have working SAGV control.
-	 * For icl+ this was already determined by intel_bw_init_hw().
-	 */
-	if (DISPLAY_VER(i915) < 11)
-		skl_sagv_disable(i915);
-
-	drm_WARN_ON(&i915->drm, i915->display.sagv.status == I915_SAGV_UNKNOWN);
-
-	i915->display.sagv.block_time_us = intel_sagv_block_time(i915);
-
-	drm_dbg_kms(&i915->drm, "SAGV supported: %s, original SAGV block time: %u us\n",
-		    str_yes_no(intel_has_sagv(i915)), i915->display.sagv.block_time_us);
-
-	/* avoid overflow when adding with wm0 latency/etc. */
-	if (drm_WARN(&i915->drm, i915->display.sagv.block_time_us > U16_MAX,
-		     "Excessive SAGV block time %u, ignoring\n",
-		     i915->display.sagv.block_time_us))
-		i915->display.sagv.block_time_us = 0;
-
-	if (!intel_has_sagv(i915))
-		i915->display.sagv.block_time_us = 0;
-}
-
-/*
- * SAGV dynamically adjusts the system agent voltage and clock frequencies
- * depending on power and performance requirements. The display engine access
- * to system memory is blocked during the adjustment time. Because of the
- * blocking time, having this enabled can cause full system hangs and/or pipe
- * underruns if we don't meet all of the following requirements:
- *
- *  - <= 1 pipe enabled
- *  - All planes can enable watermarks for latencies >= SAGV engine block time
- *  - We're not using an interlaced display configuration
- */
-static void skl_sagv_enable(struct drm_i915_private *dev_priv)
-{
-	int ret;
-
-	if (!intel_has_sagv(dev_priv))
-		return;
-
-	if (dev_priv->display.sagv.status == I915_SAGV_ENABLED)
-		return;
-
-	drm_dbg_kms(&dev_priv->drm, "Enabling SAGV\n");
-	ret = snb_pcode_write(&dev_priv->uncore, GEN9_PCODE_SAGV_CONTROL,
-			      GEN9_SAGV_ENABLE);
-
-	/* We don't need to wait for SAGV when enabling */
-
-	/*
-	 * Some skl systems, pre-release machines in particular,
-	 * don't actually have SAGV.
-	 */
-	if (IS_SKYLAKE(dev_priv) && ret == -ENXIO) {
-		drm_dbg(&dev_priv->drm, "No SAGV found on system, ignoring\n");
-		dev_priv->display.sagv.status = I915_SAGV_NOT_CONTROLLED;
-		return;
-	} else if (ret < 0) {
-		drm_err(&dev_priv->drm, "Failed to enable SAGV\n");
-		return;
-	}
-
-	dev_priv->display.sagv.status = I915_SAGV_ENABLED;
-}
-
-static void skl_sagv_disable(struct drm_i915_private *dev_priv)
-{
-	int ret;
-
-	if (!intel_has_sagv(dev_priv))
-		return;
-
-	if (dev_priv->display.sagv.status == I915_SAGV_DISABLED)
-		return;
-
-	drm_dbg_kms(&dev_priv->drm, "Disabling SAGV\n");
-	/* bspec says to keep retrying for at least 1 ms */
-	ret = skl_pcode_request(&dev_priv->uncore, GEN9_PCODE_SAGV_CONTROL,
-				GEN9_SAGV_DISABLE,
-				GEN9_SAGV_IS_DISABLED, GEN9_SAGV_IS_DISABLED,
-				1);
-	/*
-	 * Some skl systems, pre-release machines in particular,
-	 * don't actually have SAGV.
-	 */
-	if (IS_SKYLAKE(dev_priv) && ret == -ENXIO) {
-		drm_dbg(&dev_priv->drm, "No SAGV found on system, ignoring\n");
-		dev_priv->display.sagv.status = I915_SAGV_NOT_CONTROLLED;
-		return;
-	} else if (ret < 0) {
-		drm_err(&dev_priv->drm, "Failed to disable SAGV (%d)\n", ret);
-		return;
-	}
-
-	dev_priv->display.sagv.status = I915_SAGV_DISABLED;
-}
-
-static void skl_sagv_pre_plane_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *i915 = to_i915(state->base.dev);
-	const struct intel_bw_state *new_bw_state =
-		intel_atomic_get_new_bw_state(state);
-
-	if (!new_bw_state)
-		return;
-
-	if (!intel_can_enable_sagv(i915, new_bw_state))
-		skl_sagv_disable(i915);
-}
-
-static void skl_sagv_post_plane_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *i915 = to_i915(state->base.dev);
-	const struct intel_bw_state *new_bw_state =
-		intel_atomic_get_new_bw_state(state);
-
-	if (!new_bw_state)
-		return;
-
-	if (intel_can_enable_sagv(i915, new_bw_state))
-		skl_sagv_enable(i915);
-}
-
-static void icl_sagv_pre_plane_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	const struct intel_bw_state *old_bw_state =
-		intel_atomic_get_old_bw_state(state);
-	const struct intel_bw_state *new_bw_state =
-		intel_atomic_get_new_bw_state(state);
-	u16 old_mask, new_mask;
-
-	if (!new_bw_state)
-		return;
-
-	old_mask = old_bw_state->qgv_points_mask;
-	new_mask = old_bw_state->qgv_points_mask | new_bw_state->qgv_points_mask;
-
-	if (old_mask == new_mask)
-		return;
-
-	WARN_ON(!new_bw_state->base.changed);
-
-	drm_dbg_kms(&dev_priv->drm, "Restricting QGV points: 0x%x -> 0x%x\n",
-		    old_mask, new_mask);
-
-	/*
-	 * Restrict required qgv points before updating the configuration.
-	 * According to BSpec we can't mask and unmask qgv points at the same
-	 * time. Also masking should be done before updating the configuration
-	 * and unmasking afterwards.
-	 */
-	icl_pcode_restrict_qgv_points(dev_priv, new_mask);
-}
-
-static void icl_sagv_post_plane_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	const struct intel_bw_state *old_bw_state =
-		intel_atomic_get_old_bw_state(state);
-	const struct intel_bw_state *new_bw_state =
-		intel_atomic_get_new_bw_state(state);
-	u16 old_mask, new_mask;
-
-	if (!new_bw_state)
-		return;
-
-	old_mask = old_bw_state->qgv_points_mask | new_bw_state->qgv_points_mask;
-	new_mask = new_bw_state->qgv_points_mask;
-
-	if (old_mask == new_mask)
-		return;
-
-	WARN_ON(!new_bw_state->base.changed);
-
-	drm_dbg_kms(&dev_priv->drm, "Relaxing QGV points: 0x%x -> 0x%x\n",
-		    old_mask, new_mask);
-
-	/*
-	 * Allow required qgv points after updating the configuration.
-	 * According to BSpec we can't mask and unmask qgv points at the same
-	 * time. Also masking should be done before updating the configuration
-	 * and unmasking afterwards.
-	 */
-	icl_pcode_restrict_qgv_points(dev_priv, new_mask);
-}
-
-void intel_sagv_pre_plane_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *i915 = to_i915(state->base.dev);
-
-	/*
-	 * Just return if we can't control SAGV or don't have it.
-	 * This is different from situation when we have SAGV but just can't
-	 * afford it due to DBuf limitation - in case if SAGV is completely
-	 * disabled in a BIOS, we are not even allowed to send a PCode request,
-	 * as it will throw an error. So have to check it here.
-	 */
-	if (!intel_has_sagv(i915))
-		return;
-
-	if (DISPLAY_VER(i915) >= 11)
-		icl_sagv_pre_plane_update(state);
-	else
-		skl_sagv_pre_plane_update(state);
-}
-
-void intel_sagv_post_plane_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *i915 = to_i915(state->base.dev);
-
-	/*
-	 * Just return if we can't control SAGV or don't have it.
-	 * This is different from situation when we have SAGV but just can't
-	 * afford it due to DBuf limitation - in case if SAGV is completely
-	 * disabled in a BIOS, we are not even allowed to send a PCode request,
-	 * as it will throw an error. So have to check it here.
-	 */
-	if (!intel_has_sagv(i915))
-		return;
-
-	if (DISPLAY_VER(i915) >= 11)
-		icl_sagv_post_plane_update(state);
-	else
-		skl_sagv_post_plane_update(state);
-}
-
-static bool skl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
-{
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	enum plane_id plane_id;
-	int max_level = INT_MAX;
-
-	if (!intel_has_sagv(dev_priv))
-		return false;
-
-	if (!crtc_state->hw.active)
-		return true;
-
-	if (crtc_state->hw.pipe_mode.flags & DRM_MODE_FLAG_INTERLACE)
-		return false;
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		const struct skl_plane_wm *wm =
-			&crtc_state->wm.skl.optimal.planes[plane_id];
-		int level;
-
-		/* Skip this plane if it's not enabled */
-		if (!wm->wm[0].enable)
-			continue;
-
-		/* Find the highest enabled wm level for this plane */
-		for (level = ilk_wm_max_level(dev_priv);
-		     !wm->wm[level].enable; --level)
-		     { }
-
-		/* Highest common enabled wm level for all planes */
-		max_level = min(level, max_level);
-	}
-
-	/* No enabled planes? */
-	if (max_level == INT_MAX)
-		return true;
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		const struct skl_plane_wm *wm =
-			&crtc_state->wm.skl.optimal.planes[plane_id];
-
-		/*
-		 * All enabled planes must have enabled a common wm level that
-		 * can tolerate memory latencies higher than sagv_block_time_us
-		 */
-		if (wm->wm[0].enable && !wm->wm[max_level].can_sagv)
-			return false;
-	}
-
-	return true;
-}
-
-static bool tgl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
-{
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	enum plane_id plane_id;
-
-	if (!crtc_state->hw.active)
-		return true;
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		const struct skl_plane_wm *wm =
-			&crtc_state->wm.skl.optimal.planes[plane_id];
-
-		if (wm->wm[0].enable && !wm->sagv.wm0.enable)
-			return false;
-	}
-
-	return true;
-}
-
-static bool intel_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
-{
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-
-	if (DISPLAY_VER(dev_priv) >= 12)
-		return tgl_crtc_can_enable_sagv(crtc_state);
-	else
-		return skl_crtc_can_enable_sagv(crtc_state);
-}
-
-bool intel_can_enable_sagv(struct drm_i915_private *dev_priv,
-			   const struct intel_bw_state *bw_state)
-{
-	if (DISPLAY_VER(dev_priv) < 11 &&
-	    bw_state->active_pipes && !is_power_of_2(bw_state->active_pipes))
-		return false;
-
-	return bw_state->pipe_sagv_reject == 0;
-}
-
-static int intel_compute_sagv_mask(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	int ret;
-	struct intel_crtc *crtc;
-	struct intel_crtc_state *new_crtc_state;
-	struct intel_bw_state *new_bw_state = NULL;
-	const struct intel_bw_state *old_bw_state = NULL;
-	int i;
-
-	for_each_new_intel_crtc_in_state(state, crtc,
-					 new_crtc_state, i) {
-		new_bw_state = intel_atomic_get_bw_state(state);
-		if (IS_ERR(new_bw_state))
-			return PTR_ERR(new_bw_state);
-
-		old_bw_state = intel_atomic_get_old_bw_state(state);
-
-		if (intel_crtc_can_enable_sagv(new_crtc_state))
-			new_bw_state->pipe_sagv_reject &= ~BIT(crtc->pipe);
-		else
-			new_bw_state->pipe_sagv_reject |= BIT(crtc->pipe);
-	}
-
-	if (!new_bw_state)
-		return 0;
-
-	new_bw_state->active_pipes =
-		intel_calc_active_pipes(state, old_bw_state->active_pipes);
-
-	if (new_bw_state->active_pipes != old_bw_state->active_pipes) {
-		ret = intel_atomic_lock_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	}
-
-	if (intel_can_enable_sagv(dev_priv, new_bw_state) !=
-	    intel_can_enable_sagv(dev_priv, old_bw_state)) {
-		ret = intel_atomic_serialize_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	} else if (new_bw_state->pipe_sagv_reject != old_bw_state->pipe_sagv_reject) {
-		ret = intel_atomic_lock_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	}
-
-	for_each_new_intel_crtc_in_state(state, crtc,
-					 new_crtc_state, i) {
-		struct skl_pipe_wm *pipe_wm = &new_crtc_state->wm.skl.optimal;
-
-		/*
-		 * We store use_sagv_wm in the crtc state rather than relying on
-		 * that bw state since we have no convenient way to get at the
-		 * latter from the plane commit hooks (especially in the legacy
-		 * cursor case)
-		 */
-		pipe_wm->use_sagv_wm = !HAS_HW_SAGV_WM(dev_priv) &&
-			DISPLAY_VER(dev_priv) >= 12 &&
-			intel_can_enable_sagv(dev_priv, new_bw_state);
-	}
-
-	return 0;
-}
-
-static u16 skl_ddb_entry_init(struct skl_ddb_entry *entry,
-			      u16 start, u16 end)
-{
-	entry->start = start;
-	entry->end = end;
-
-	return end;
-}
-
-static int intel_dbuf_slice_size(struct drm_i915_private *dev_priv)
-{
-	return INTEL_INFO(dev_priv)->display.dbuf.size /
-		hweight8(INTEL_INFO(dev_priv)->display.dbuf.slice_mask);
-}
-
-static void
-skl_ddb_entry_for_slices(struct drm_i915_private *dev_priv, u8 slice_mask,
-			 struct skl_ddb_entry *ddb)
-{
-	int slice_size = intel_dbuf_slice_size(dev_priv);
-
-	if (!slice_mask) {
-		ddb->start = 0;
-		ddb->end = 0;
-		return;
-	}
-
-	ddb->start = (ffs(slice_mask) - 1) * slice_size;
-	ddb->end = fls(slice_mask) * slice_size;
-
-	WARN_ON(ddb->start >= ddb->end);
-	WARN_ON(ddb->end > INTEL_INFO(dev_priv)->display.dbuf.size);
-}
-
-static unsigned int mbus_ddb_offset(struct drm_i915_private *i915, u8 slice_mask)
-{
-	struct skl_ddb_entry ddb;
-
-	if (slice_mask & (BIT(DBUF_S1) | BIT(DBUF_S2)))
-		slice_mask = BIT(DBUF_S1);
-	else if (slice_mask & (BIT(DBUF_S3) | BIT(DBUF_S4)))
-		slice_mask = BIT(DBUF_S3);
-
-	skl_ddb_entry_for_slices(i915, slice_mask, &ddb);
-
-	return ddb.start;
-}
-
-u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
-			    const struct skl_ddb_entry *entry)
-{
-	int slice_size = intel_dbuf_slice_size(dev_priv);
-	enum dbuf_slice start_slice, end_slice;
-	u8 slice_mask = 0;
-
-	if (!skl_ddb_entry_size(entry))
-		return 0;
-
-	start_slice = entry->start / slice_size;
-	end_slice = (entry->end - 1) / slice_size;
-
-	/*
-	 * Per plane DDB entry can in a really worst case be on multiple slices
-	 * but single entry is anyway contigious.
-	 */
-	while (start_slice <= end_slice) {
-		slice_mask |= BIT(start_slice);
-		start_slice++;
-	}
-
-	return slice_mask;
-}
-
-static unsigned int intel_crtc_ddb_weight(const struct intel_crtc_state *crtc_state)
-{
-	const struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode;
-	int hdisplay, vdisplay;
-
-	if (!crtc_state->hw.active)
-		return 0;
-
-	/*
-	 * Watermark/ddb requirement highly depends upon width of the
-	 * framebuffer, So instead of allocating DDB equally among pipes
-	 * distribute DDB based on resolution/width of the display.
-	 */
-	drm_mode_get_hv_timing(pipe_mode, &hdisplay, &vdisplay);
-
-	return hdisplay;
-}
-
-static void intel_crtc_dbuf_weights(const struct intel_dbuf_state *dbuf_state,
-				    enum pipe for_pipe,
-				    unsigned int *weight_start,
-				    unsigned int *weight_end,
-				    unsigned int *weight_total)
-{
-	struct drm_i915_private *dev_priv =
-		to_i915(dbuf_state->base.state->base.dev);
-	enum pipe pipe;
-
-	*weight_start = 0;
-	*weight_end = 0;
-	*weight_total = 0;
-
-	for_each_pipe(dev_priv, pipe) {
-		int weight = dbuf_state->weight[pipe];
-
-		/*
-		 * Do not account pipes using other slice sets
-		 * luckily as of current BSpec slice sets do not partially
-		 * intersect(pipes share either same one slice or same slice set
-		 * i.e no partial intersection), so it is enough to check for
-		 * equality for now.
-		 */
-		if (dbuf_state->slices[pipe] != dbuf_state->slices[for_pipe])
-			continue;
-
-		*weight_total += weight;
-		if (pipe < for_pipe) {
-			*weight_start += weight;
-			*weight_end += weight;
-		} else if (pipe == for_pipe) {
-			*weight_end += weight;
-		}
-	}
-}
-
-static int
-skl_crtc_allocate_ddb(struct intel_atomic_state *state, struct intel_crtc *crtc)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	unsigned int weight_total, weight_start, weight_end;
-	const struct intel_dbuf_state *old_dbuf_state =
-		intel_atomic_get_old_dbuf_state(state);
-	struct intel_dbuf_state *new_dbuf_state =
-		intel_atomic_get_new_dbuf_state(state);
-	struct intel_crtc_state *crtc_state;
-	struct skl_ddb_entry ddb_slices;
-	enum pipe pipe = crtc->pipe;
-	unsigned int mbus_offset = 0;
-	u32 ddb_range_size;
-	u32 dbuf_slice_mask;
-	u32 start, end;
-	int ret;
-
-	if (new_dbuf_state->weight[pipe] == 0) {
-		skl_ddb_entry_init(&new_dbuf_state->ddb[pipe], 0, 0);
-		goto out;
-	}
-
-	dbuf_slice_mask = new_dbuf_state->slices[pipe];
-
-	skl_ddb_entry_for_slices(dev_priv, dbuf_slice_mask, &ddb_slices);
-	mbus_offset = mbus_ddb_offset(dev_priv, dbuf_slice_mask);
-	ddb_range_size = skl_ddb_entry_size(&ddb_slices);
-
-	intel_crtc_dbuf_weights(new_dbuf_state, pipe,
-				&weight_start, &weight_end, &weight_total);
-
-	start = ddb_range_size * weight_start / weight_total;
-	end = ddb_range_size * weight_end / weight_total;
-
-	skl_ddb_entry_init(&new_dbuf_state->ddb[pipe],
-			   ddb_slices.start - mbus_offset + start,
-			   ddb_slices.start - mbus_offset + end);
-
-out:
-	if (old_dbuf_state->slices[pipe] == new_dbuf_state->slices[pipe] &&
-	    skl_ddb_entry_equal(&old_dbuf_state->ddb[pipe],
-				&new_dbuf_state->ddb[pipe]))
-		return 0;
-
-	ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
-	if (ret)
-		return ret;
-
-	crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
-	if (IS_ERR(crtc_state))
-		return PTR_ERR(crtc_state);
-
-	/*
-	 * Used for checking overlaps, so we need absolute
-	 * offsets instead of MBUS relative offsets.
-	 */
-	crtc_state->wm.skl.ddb.start = mbus_offset + new_dbuf_state->ddb[pipe].start;
-	crtc_state->wm.skl.ddb.end = mbus_offset + new_dbuf_state->ddb[pipe].end;
-
-	drm_dbg_kms(&dev_priv->drm,
-		    "[CRTC:%d:%s] dbuf slices 0x%x -> 0x%x, ddb (%d - %d) -> (%d - %d), active pipes 0x%x -> 0x%x\n",
-		    crtc->base.base.id, crtc->base.name,
-		    old_dbuf_state->slices[pipe], new_dbuf_state->slices[pipe],
-		    old_dbuf_state->ddb[pipe].start, old_dbuf_state->ddb[pipe].end,
-		    new_dbuf_state->ddb[pipe].start, new_dbuf_state->ddb[pipe].end,
-		    old_dbuf_state->active_pipes, new_dbuf_state->active_pipes);
-
-	return 0;
-}
-
-static int skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
-				 int width, const struct drm_format_info *format,
-				 u64 modifier, unsigned int rotation,
-				 u32 plane_pixel_rate, struct skl_wm_params *wp,
-				 int color_plane);
-
-static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state,
-				 struct intel_plane *plane,
-				 int level,
-				 unsigned int latency,
-				 const struct skl_wm_params *wp,
-				 const struct skl_wm_level *result_prev,
-				 struct skl_wm_level *result /* out */);
-
-static unsigned int
-skl_cursor_allocation(const struct intel_crtc_state *crtc_state,
-		      int num_active)
-{
-	struct intel_plane *plane = to_intel_plane(crtc_state->uapi.crtc->cursor);
-	struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
-	int level, max_level = ilk_wm_max_level(dev_priv);
-	struct skl_wm_level wm = {};
-	int ret, min_ddb_alloc = 0;
-	struct skl_wm_params wp;
-
-	ret = skl_compute_wm_params(crtc_state, 256,
-				    drm_format_info(DRM_FORMAT_ARGB8888),
-				    DRM_FORMAT_MOD_LINEAR,
-				    DRM_MODE_ROTATE_0,
-				    crtc_state->pixel_rate, &wp, 0);
-	drm_WARN_ON(&dev_priv->drm, ret);
-
-	for (level = 0; level <= max_level; level++) {
-		unsigned int latency = dev_priv->display.wm.skl_latency[level];
-
-		skl_compute_plane_wm(crtc_state, plane, level, latency, &wp, &wm, &wm);
-		if (wm.min_ddb_alloc == U16_MAX)
-			break;
-
-		min_ddb_alloc = wm.min_ddb_alloc;
-	}
-
-	return max(num_active == 1 ? 32 : 8, min_ddb_alloc);
-}
-
-static void skl_ddb_entry_init_from_hw(struct skl_ddb_entry *entry, u32 reg)
-{
-	skl_ddb_entry_init(entry,
-			   REG_FIELD_GET(PLANE_BUF_START_MASK, reg),
-			   REG_FIELD_GET(PLANE_BUF_END_MASK, reg));
-	if (entry->end)
-		entry->end++;
-}
-
-static void
-skl_ddb_get_hw_plane_state(struct drm_i915_private *dev_priv,
-			   const enum pipe pipe,
-			   const enum plane_id plane_id,
-			   struct skl_ddb_entry *ddb,
-			   struct skl_ddb_entry *ddb_y)
-{
-	u32 val;
-
-	/* Cursor doesn't support NV12/planar, so no extra calculation needed */
-	if (plane_id == PLANE_CURSOR) {
-		val = intel_uncore_read(&dev_priv->uncore, CUR_BUF_CFG(pipe));
-		skl_ddb_entry_init_from_hw(ddb, val);
-		return;
-	}
-
-	val = intel_uncore_read(&dev_priv->uncore, PLANE_BUF_CFG(pipe, plane_id));
-	skl_ddb_entry_init_from_hw(ddb, val);
-
-	if (DISPLAY_VER(dev_priv) >= 11)
-		return;
-
-	val = intel_uncore_read(&dev_priv->uncore, PLANE_NV12_BUF_CFG(pipe, plane_id));
-	skl_ddb_entry_init_from_hw(ddb_y, val);
-}
-
-static void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
-				      struct skl_ddb_entry *ddb,
-				      struct skl_ddb_entry *ddb_y)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	enum intel_display_power_domain power_domain;
-	enum pipe pipe = crtc->pipe;
-	intel_wakeref_t wakeref;
-	enum plane_id plane_id;
-
-	power_domain = POWER_DOMAIN_PIPE(pipe);
-	wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
-	if (!wakeref)
-		return;
-
-	for_each_plane_id_on_crtc(crtc, plane_id)
-		skl_ddb_get_hw_plane_state(dev_priv, pipe,
-					   plane_id,
-					   &ddb[plane_id],
-					   &ddb_y[plane_id]);
-
-	intel_display_power_put(dev_priv, power_domain, wakeref);
-}
-
-struct dbuf_slice_conf_entry {
-	u8 active_pipes;
-	u8 dbuf_mask[I915_MAX_PIPES];
-	bool join_mbus;
-};
-
-/*
- * Table taken from Bspec 12716
- * Pipes do have some preferred DBuf slice affinity,
- * plus there are some hardcoded requirements on how
- * those should be distributed for multipipe scenarios.
- * For more DBuf slices algorithm can get even more messy
- * and less readable, so decided to use a table almost
- * as is from BSpec itself - that way it is at least easier
- * to compare, change and check.
- */
-static const struct dbuf_slice_conf_entry icl_allowed_dbufs[] =
-/* Autogenerated with igt/tools/intel_dbuf_map tool: */
-{
-	{
-		.active_pipes = BIT(PIPE_A),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_C] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-		},
-	},
-	{}
-};
-
-/*
- * Table taken from Bspec 49255
- * Pipes do have some preferred DBuf slice affinity,
- * plus there are some hardcoded requirements on how
- * those should be distributed for multipipe scenarios.
- * For more DBuf slices algorithm can get even more messy
- * and less readable, so decided to use a table almost
- * as is from BSpec itself - that way it is at least easier
- * to compare, change and check.
- */
-static const struct dbuf_slice_conf_entry tgl_allowed_dbufs[] =
-/* Autogenerated with igt/tools/intel_dbuf_map tool: */
-{
-	{
-		.active_pipes = BIT(PIPE_A),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S2),
-			[PIPE_B] = BIT(DBUF_S1),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_C] = BIT(DBUF_S2) | BIT(DBUF_S1),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_D] = BIT(DBUF_S2) | BIT(DBUF_S1),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_D] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1),
-			[PIPE_D] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S1),
-			[PIPE_D] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_C] = BIT(DBUF_S1),
-			[PIPE_D] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-			[PIPE_D] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-			[PIPE_D] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S1),
-			[PIPE_C] = BIT(DBUF_S2),
-			[PIPE_D] = BIT(DBUF_S2),
-		},
-	},
-	{}
-};
-
-static const struct dbuf_slice_conf_entry dg2_allowed_dbufs[] = {
-	{
-		.active_pipes = BIT(PIPE_A),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S2),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_D] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_D] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_D] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S2),
-			[PIPE_D] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_C] = BIT(DBUF_S3),
-			[PIPE_D] = BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_C] = BIT(DBUF_S3),
-			[PIPE_D] = BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_C] = BIT(DBUF_S3),
-			[PIPE_D] = BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1),
-			[PIPE_B] = BIT(DBUF_S2),
-			[PIPE_C] = BIT(DBUF_S3),
-			[PIPE_D] = BIT(DBUF_S4),
-		},
-	},
-	{}
-};
-
-static const struct dbuf_slice_conf_entry adlp_allowed_dbufs[] = {
-	/*
-	 * Keep the join_mbus cases first so check_mbus_joined()
-	 * will prefer them over the !join_mbus cases.
-	 */
-	{
-		.active_pipes = BIT(PIPE_A),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2) | BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-		.join_mbus = true,
-	},
-	{
-		.active_pipes = BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S1) | BIT(DBUF_S2) | BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-		.join_mbus = true,
-	},
-	{
-		.active_pipes = BIT(PIPE_A),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-		.join_mbus = false,
-	},
-	{
-		.active_pipes = BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-		.join_mbus = false,
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{
-		.active_pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
-		.dbuf_mask = {
-			[PIPE_A] = BIT(DBUF_S1) | BIT(DBUF_S2),
-			[PIPE_B] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_C] = BIT(DBUF_S3) | BIT(DBUF_S4),
-			[PIPE_D] = BIT(DBUF_S1) | BIT(DBUF_S2),
-		},
-	},
-	{}
-
-};
-
-static bool check_mbus_joined(u8 active_pipes,
-			      const struct dbuf_slice_conf_entry *dbuf_slices)
-{
-	int i;
-
-	for (i = 0; dbuf_slices[i].active_pipes != 0; i++) {
-		if (dbuf_slices[i].active_pipes == active_pipes)
-			return dbuf_slices[i].join_mbus;
-	}
-	return false;
-}
-
-static bool adlp_check_mbus_joined(u8 active_pipes)
-{
-	return check_mbus_joined(active_pipes, adlp_allowed_dbufs);
-}
-
-static u8 compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus,
-			      const struct dbuf_slice_conf_entry *dbuf_slices)
-{
-	int i;
-
-	for (i = 0; dbuf_slices[i].active_pipes != 0; i++) {
-		if (dbuf_slices[i].active_pipes == active_pipes &&
-		    dbuf_slices[i].join_mbus == join_mbus)
-			return dbuf_slices[i].dbuf_mask[pipe];
-	}
-	return 0;
-}
-
-/*
- * This function finds an entry with same enabled pipe configuration and
- * returns correspondent DBuf slice mask as stated in BSpec for particular
- * platform.
- */
-static u8 icl_compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus)
-{
-	/*
-	 * FIXME: For ICL this is still a bit unclear as prev BSpec revision
-	 * required calculating "pipe ratio" in order to determine
-	 * if one or two slices can be used for single pipe configurations
-	 * as additional constraint to the existing table.
-	 * However based on recent info, it should be not "pipe ratio"
-	 * but rather ratio between pixel_rate and cdclk with additional
-	 * constants, so for now we are using only table until this is
-	 * clarified. Also this is the reason why crtc_state param is
-	 * still here - we will need it once those additional constraints
-	 * pop up.
-	 */
-	return compute_dbuf_slices(pipe, active_pipes, join_mbus,
-				   icl_allowed_dbufs);
-}
-
-static u8 tgl_compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus)
-{
-	return compute_dbuf_slices(pipe, active_pipes, join_mbus,
-				   tgl_allowed_dbufs);
-}
-
-static u8 adlp_compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus)
-{
-	return compute_dbuf_slices(pipe, active_pipes, join_mbus,
-				   adlp_allowed_dbufs);
-}
-
-static u8 dg2_compute_dbuf_slices(enum pipe pipe, u8 active_pipes, bool join_mbus)
-{
-	return compute_dbuf_slices(pipe, active_pipes, join_mbus,
-				   dg2_allowed_dbufs);
-}
-
-static u8 skl_compute_dbuf_slices(struct intel_crtc *crtc, u8 active_pipes, bool join_mbus)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	enum pipe pipe = crtc->pipe;
-
-	if (IS_DG2(dev_priv))
-		return dg2_compute_dbuf_slices(pipe, active_pipes, join_mbus);
-	else if (DISPLAY_VER(dev_priv) >= 13)
-		return adlp_compute_dbuf_slices(pipe, active_pipes, join_mbus);
-	else if (DISPLAY_VER(dev_priv) == 12)
-		return tgl_compute_dbuf_slices(pipe, active_pipes, join_mbus);
-	else if (DISPLAY_VER(dev_priv) == 11)
-		return icl_compute_dbuf_slices(pipe, active_pipes, join_mbus);
-	/*
-	 * For anything else just return one slice yet.
-	 * Should be extended for other platforms.
-	 */
-	return active_pipes & BIT(pipe) ? BIT(DBUF_S1) : 0;
-}
-
-static bool
-use_minimal_wm0_only(const struct intel_crtc_state *crtc_state,
-		     struct intel_plane *plane)
-{
-	struct drm_i915_private *i915 = to_i915(plane->base.dev);
-
-	return DISPLAY_VER(i915) >= 13 &&
-	       crtc_state->uapi.async_flip &&
-	       plane->async_flip;
-}
-
-static u64
-skl_total_relative_data_rate(const struct intel_crtc_state *crtc_state)
-{
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
-	enum plane_id plane_id;
-	u64 data_rate = 0;
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		if (plane_id == PLANE_CURSOR)
-			continue;
-
-		data_rate += crtc_state->rel_data_rate[plane_id];
-
-		if (DISPLAY_VER(i915) < 11)
-			data_rate += crtc_state->rel_data_rate_y[plane_id];
-	}
-
-	return data_rate;
-}
-
-static const struct skl_wm_level *
-skl_plane_wm_level(const struct skl_pipe_wm *pipe_wm,
-		   enum plane_id plane_id,
-		   int level)
-{
-	const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
-
-	if (level == 0 && pipe_wm->use_sagv_wm)
-		return &wm->sagv.wm0;
-
-	return &wm->wm[level];
-}
-
-static const struct skl_wm_level *
-skl_plane_trans_wm(const struct skl_pipe_wm *pipe_wm,
-		   enum plane_id plane_id)
-{
-	const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
-
-	if (pipe_wm->use_sagv_wm)
-		return &wm->sagv.trans_wm;
-
-	return &wm->trans_wm;
-}
-
-/*
- * We only disable the watermarks for each plane if
- * they exceed the ddb allocation of said plane. This
- * is done so that we don't end up touching cursor
- * watermarks needlessly when some other plane reduces
- * our max possible watermark level.
- *
- * Bspec has this to say about the PLANE_WM enable bit:
- * "All the watermarks at this level for all enabled
- *  planes must be enabled before the level will be used."
- * So this is actually safe to do.
- */
-static void
-skl_check_wm_level(struct skl_wm_level *wm, const struct skl_ddb_entry *ddb)
-{
-	if (wm->min_ddb_alloc > skl_ddb_entry_size(ddb))
-		memset(wm, 0, sizeof(*wm));
-}
-
-static void
-skl_check_nv12_wm_level(struct skl_wm_level *wm, struct skl_wm_level *uv_wm,
-			const struct skl_ddb_entry *ddb_y, const struct skl_ddb_entry *ddb)
-{
-	if (wm->min_ddb_alloc > skl_ddb_entry_size(ddb_y) ||
-	    uv_wm->min_ddb_alloc > skl_ddb_entry_size(ddb)) {
-		memset(wm, 0, sizeof(*wm));
-		memset(uv_wm, 0, sizeof(*uv_wm));
-	}
-}
-
-static bool icl_need_wm1_wa(struct drm_i915_private *i915,
-			    enum plane_id plane_id)
-{
-	/*
-	 * Wa_1408961008:icl, ehl
-	 * Wa_14012656716:tgl, adl
-	 * Underruns with WM1+ disabled
-	 */
-	return DISPLAY_VER(i915) == 11 ||
-	       (IS_DISPLAY_VER(i915, 12, 13) && plane_id == PLANE_CURSOR);
-}
-
-struct skl_plane_ddb_iter {
-	u64 data_rate;
-	u16 start, size;
-};
-
-static void
-skl_allocate_plane_ddb(struct skl_plane_ddb_iter *iter,
-		       struct skl_ddb_entry *ddb,
-		       const struct skl_wm_level *wm,
-		       u64 data_rate)
-{
-	u16 size, extra = 0;
-
-	if (data_rate) {
-		extra = min_t(u16, iter->size,
-			      DIV64_U64_ROUND_UP(iter->size * data_rate,
-						 iter->data_rate));
-		iter->size -= extra;
-		iter->data_rate -= data_rate;
-	}
-
-	/*
-	 * Keep ddb entry of all disabled planes explicitly zeroed
-	 * to avoid skl_ddb_add_affected_planes() adding them to
-	 * the state when other planes change their allocations.
-	 */
-	size = wm->min_ddb_alloc + extra;
-	if (size)
-		iter->start = skl_ddb_entry_init(ddb, iter->start,
-						 iter->start + size);
-}
-
-static int
-skl_crtc_allocate_plane_ddb(struct intel_atomic_state *state,
-			    struct intel_crtc *crtc)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	struct intel_crtc_state *crtc_state =
-		intel_atomic_get_new_crtc_state(state, crtc);
-	const struct intel_dbuf_state *dbuf_state =
-		intel_atomic_get_new_dbuf_state(state);
-	const struct skl_ddb_entry *alloc = &dbuf_state->ddb[crtc->pipe];
-	int num_active = hweight8(dbuf_state->active_pipes);
-	struct skl_plane_ddb_iter iter;
-	enum plane_id plane_id;
-	u16 cursor_size;
-	u32 blocks;
-	int level;
-
-	/* Clear the partitioning for disabled planes. */
-	memset(crtc_state->wm.skl.plane_ddb, 0, sizeof(crtc_state->wm.skl.plane_ddb));
-	memset(crtc_state->wm.skl.plane_ddb_y, 0, sizeof(crtc_state->wm.skl.plane_ddb_y));
-
-	if (!crtc_state->hw.active)
-		return 0;
-
-	iter.start = alloc->start;
-	iter.size = skl_ddb_entry_size(alloc);
-	if (iter.size == 0)
-		return 0;
-
-	/* Allocate fixed number of blocks for cursor. */
-	cursor_size = skl_cursor_allocation(crtc_state, num_active);
-	iter.size -= cursor_size;
-	skl_ddb_entry_init(&crtc_state->wm.skl.plane_ddb[PLANE_CURSOR],
-			   alloc->end - cursor_size, alloc->end);
-
-	iter.data_rate = skl_total_relative_data_rate(crtc_state);
-
-	/*
-	 * Find the highest watermark level for which we can satisfy the block
-	 * requirement of active planes.
-	 */
-	for (level = ilk_wm_max_level(dev_priv); level >= 0; level--) {
-		blocks = 0;
-		for_each_plane_id_on_crtc(crtc, plane_id) {
-			const struct skl_plane_wm *wm =
-				&crtc_state->wm.skl.optimal.planes[plane_id];
-
-			if (plane_id == PLANE_CURSOR) {
-				const struct skl_ddb_entry *ddb =
-					&crtc_state->wm.skl.plane_ddb[plane_id];
-
-				if (wm->wm[level].min_ddb_alloc > skl_ddb_entry_size(ddb)) {
-					drm_WARN_ON(&dev_priv->drm,
-						    wm->wm[level].min_ddb_alloc != U16_MAX);
-					blocks = U32_MAX;
-					break;
-				}
-				continue;
-			}
-
-			blocks += wm->wm[level].min_ddb_alloc;
-			blocks += wm->uv_wm[level].min_ddb_alloc;
-		}
-
-		if (blocks <= iter.size) {
-			iter.size -= blocks;
-			break;
-		}
-	}
-
-	if (level < 0) {
-		drm_dbg_kms(&dev_priv->drm,
-			    "Requested display configuration exceeds system DDB limitations");
-		drm_dbg_kms(&dev_priv->drm, "minimum required %d/%d\n",
-			    blocks, iter.size);
-		return -EINVAL;
-	}
-
-	/* avoid the WARN later when we don't allocate any extra DDB */
-	if (iter.data_rate == 0)
-		iter.size = 0;
-
-	/*
-	 * Grant each plane the blocks it requires at the highest achievable
-	 * watermark level, plus an extra share of the leftover blocks
-	 * proportional to its relative data rate.
-	 */
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		struct skl_ddb_entry *ddb =
-			&crtc_state->wm.skl.plane_ddb[plane_id];
-		struct skl_ddb_entry *ddb_y =
-			&crtc_state->wm.skl.plane_ddb_y[plane_id];
-		const struct skl_plane_wm *wm =
-			&crtc_state->wm.skl.optimal.planes[plane_id];
-
-		if (plane_id == PLANE_CURSOR)
-			continue;
-
-		if (DISPLAY_VER(dev_priv) < 11 &&
-		    crtc_state->nv12_planes & BIT(plane_id)) {
-			skl_allocate_plane_ddb(&iter, ddb_y, &wm->wm[level],
-					       crtc_state->rel_data_rate_y[plane_id]);
-			skl_allocate_plane_ddb(&iter, ddb, &wm->uv_wm[level],
-					       crtc_state->rel_data_rate[plane_id]);
-		} else {
-			skl_allocate_plane_ddb(&iter, ddb, &wm->wm[level],
-					       crtc_state->rel_data_rate[plane_id]);
-		}
-	}
-	drm_WARN_ON(&dev_priv->drm, iter.size != 0 || iter.data_rate != 0);
-
-	/*
-	 * When we calculated watermark values we didn't know how high
-	 * of a level we'd actually be able to hit, so we just marked
-	 * all levels as "enabled."  Go back now and disable the ones
-	 * that aren't actually possible.
-	 */
-	for (level++; level <= ilk_wm_max_level(dev_priv); level++) {
-		for_each_plane_id_on_crtc(crtc, plane_id) {
-			const struct skl_ddb_entry *ddb =
-				&crtc_state->wm.skl.plane_ddb[plane_id];
-			const struct skl_ddb_entry *ddb_y =
-				&crtc_state->wm.skl.plane_ddb_y[plane_id];
-			struct skl_plane_wm *wm =
-				&crtc_state->wm.skl.optimal.planes[plane_id];
-
-			if (DISPLAY_VER(dev_priv) < 11 &&
-			    crtc_state->nv12_planes & BIT(plane_id))
-				skl_check_nv12_wm_level(&wm->wm[level],
-							&wm->uv_wm[level],
-							ddb_y, ddb);
-			else
-				skl_check_wm_level(&wm->wm[level], ddb);
-
-			if (icl_need_wm1_wa(dev_priv, plane_id) &&
-			    level == 1 && wm->wm[0].enable) {
-				wm->wm[level].blocks = wm->wm[0].blocks;
-				wm->wm[level].lines = wm->wm[0].lines;
-				wm->wm[level].ignore_lines = wm->wm[0].ignore_lines;
-			}
-		}
-	}
-
-	/*
-	 * Go back and disable the transition and SAGV watermarks
-	 * if it turns out we don't have enough DDB blocks for them.
-	 */
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		const struct skl_ddb_entry *ddb =
-			&crtc_state->wm.skl.plane_ddb[plane_id];
-		const struct skl_ddb_entry *ddb_y =
-			&crtc_state->wm.skl.plane_ddb_y[plane_id];
-		struct skl_plane_wm *wm =
-			&crtc_state->wm.skl.optimal.planes[plane_id];
-
-		if (DISPLAY_VER(dev_priv) < 11 &&
-		    crtc_state->nv12_planes & BIT(plane_id)) {
-			skl_check_wm_level(&wm->trans_wm, ddb_y);
-		} else {
-			WARN_ON(skl_ddb_entry_size(ddb_y));
-
-			skl_check_wm_level(&wm->trans_wm, ddb);
-		}
-
-		skl_check_wm_level(&wm->sagv.wm0, ddb);
-		skl_check_wm_level(&wm->sagv.trans_wm, ddb);
-	}
-
-	return 0;
-}
-
-/*
- * The max latency should be 257 (max the punit can code is 255 and we add 2us
- * for the read latency) and cpp should always be <= 8, so that
- * should allow pixel_rate up to ~2 GHz which seems sufficient since max
- * 2xcdclk is 1350 MHz and the pixel rate should never exceed that.
-*/
-static uint_fixed_16_16_t
-skl_wm_method1(const struct drm_i915_private *dev_priv, u32 pixel_rate,
-	       u8 cpp, u32 latency, u32 dbuf_block_size)
-{
-	u32 wm_intermediate_val;
-	uint_fixed_16_16_t ret;
-
-	if (latency == 0)
-		return FP_16_16_MAX;
-
-	wm_intermediate_val = latency * pixel_rate * cpp;
-	ret = div_fixed16(wm_intermediate_val, 1000 * dbuf_block_size);
-
-	if (DISPLAY_VER(dev_priv) >= 10)
-		ret = add_fixed16_u32(ret, 1);
-
-	return ret;
-}
-
-static uint_fixed_16_16_t
-skl_wm_method2(u32 pixel_rate, u32 pipe_htotal, u32 latency,
-	       uint_fixed_16_16_t plane_blocks_per_line)
-{
-	u32 wm_intermediate_val;
-	uint_fixed_16_16_t ret;
-
-	if (latency == 0)
-		return FP_16_16_MAX;
-
-	wm_intermediate_val = latency * pixel_rate;
-	wm_intermediate_val = DIV_ROUND_UP(wm_intermediate_val,
-					   pipe_htotal * 1000);
-	ret = mul_u32_fixed16(wm_intermediate_val, plane_blocks_per_line);
-	return ret;
-}
-
-static uint_fixed_16_16_t
-intel_get_linetime_us(const struct intel_crtc_state *crtc_state)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
-	u32 pixel_rate;
-	u32 crtc_htotal;
-	uint_fixed_16_16_t linetime_us;
-
-	if (!crtc_state->hw.active)
-		return u32_to_fixed16(0);
-
-	pixel_rate = crtc_state->pixel_rate;
-
-	if (drm_WARN_ON(&dev_priv->drm, pixel_rate == 0))
-		return u32_to_fixed16(0);
-
-	crtc_htotal = crtc_state->hw.pipe_mode.crtc_htotal;
-	linetime_us = div_fixed16(crtc_htotal * 1000, pixel_rate);
-
-	return linetime_us;
-}
-
-static int
-skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
-		      int width, const struct drm_format_info *format,
-		      u64 modifier, unsigned int rotation,
-		      u32 plane_pixel_rate, struct skl_wm_params *wp,
-		      int color_plane)
-{
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	u32 interm_pbpl;
-
-	/* only planar format has two planes */
-	if (color_plane == 1 &&
-	    !intel_format_info_is_yuv_semiplanar(format, modifier)) {
-		drm_dbg_kms(&dev_priv->drm,
-			    "Non planar format have single plane\n");
-		return -EINVAL;
-	}
-
-	wp->y_tiled = modifier == I915_FORMAT_MOD_Y_TILED ||
-		      modifier == I915_FORMAT_MOD_4_TILED ||
-		      modifier == I915_FORMAT_MOD_Yf_TILED ||
-		      modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
-		      modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
-	wp->x_tiled = modifier == I915_FORMAT_MOD_X_TILED;
-	wp->rc_surface = modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
-			 modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
-	wp->is_planar = intel_format_info_is_yuv_semiplanar(format, modifier);
-
-	wp->width = width;
-	if (color_plane == 1 && wp->is_planar)
-		wp->width /= 2;
-
-	wp->cpp = format->cpp[color_plane];
-	wp->plane_pixel_rate = plane_pixel_rate;
-
-	if (DISPLAY_VER(dev_priv) >= 11 &&
-	    modifier == I915_FORMAT_MOD_Yf_TILED  && wp->cpp == 1)
-		wp->dbuf_block_size = 256;
-	else
-		wp->dbuf_block_size = 512;
-
-	if (drm_rotation_90_or_270(rotation)) {
-		switch (wp->cpp) {
-		case 1:
-			wp->y_min_scanlines = 16;
-			break;
-		case 2:
-			wp->y_min_scanlines = 8;
-			break;
-		case 4:
-			wp->y_min_scanlines = 4;
-			break;
-		default:
-			MISSING_CASE(wp->cpp);
-			return -EINVAL;
-		}
-	} else {
-		wp->y_min_scanlines = 4;
-	}
-
-	if (skl_needs_memory_bw_wa(dev_priv))
-		wp->y_min_scanlines *= 2;
-
-	wp->plane_bytes_per_line = wp->width * wp->cpp;
-	if (wp->y_tiled) {
-		interm_pbpl = DIV_ROUND_UP(wp->plane_bytes_per_line *
-					   wp->y_min_scanlines,
-					   wp->dbuf_block_size);
-
-		if (DISPLAY_VER(dev_priv) >= 10)
-			interm_pbpl++;
-
-		wp->plane_blocks_per_line = div_fixed16(interm_pbpl,
-							wp->y_min_scanlines);
-	} else {
-		interm_pbpl = DIV_ROUND_UP(wp->plane_bytes_per_line,
-					   wp->dbuf_block_size);
-
-		if (!wp->x_tiled || DISPLAY_VER(dev_priv) >= 10)
-			interm_pbpl++;
-
-		wp->plane_blocks_per_line = u32_to_fixed16(interm_pbpl);
-	}
-
-	wp->y_tile_minimum = mul_u32_fixed16(wp->y_min_scanlines,
-					     wp->plane_blocks_per_line);
-
-	wp->linetime_us = fixed16_to_u32_round_up(
-					intel_get_linetime_us(crtc_state));
-
-	return 0;
-}
-
-static int
-skl_compute_plane_wm_params(const struct intel_crtc_state *crtc_state,
-			    const struct intel_plane_state *plane_state,
-			    struct skl_wm_params *wp, int color_plane)
-{
-	const struct drm_framebuffer *fb = plane_state->hw.fb;
-	int width;
-
-	/*
-	 * Src coordinates are already rotated by 270 degrees for
-	 * the 90/270 degree plane rotation cases (to match the
-	 * GTT mapping), hence no need to account for rotation here.
-	 */
-	width = drm_rect_width(&plane_state->uapi.src) >> 16;
-
-	return skl_compute_wm_params(crtc_state, width,
-				     fb->format, fb->modifier,
-				     plane_state->hw.rotation,
-				     intel_plane_pixel_rate(crtc_state, plane_state),
-				     wp, color_plane);
-}
-
-static bool skl_wm_has_lines(struct drm_i915_private *dev_priv, int level)
-{
-	if (DISPLAY_VER(dev_priv) >= 10)
-		return true;
-
-	/* The number of lines are ignored for the level 0 watermark. */
-	return level > 0;
-}
-
-static int skl_wm_max_lines(struct drm_i915_private *dev_priv)
-{
-	if (DISPLAY_VER(dev_priv) >= 13)
-		return 255;
-	else
-		return 31;
-}
-
-static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state,
-				 struct intel_plane *plane,
-				 int level,
-				 unsigned int latency,
-				 const struct skl_wm_params *wp,
-				 const struct skl_wm_level *result_prev,
-				 struct skl_wm_level *result /* out */)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
-	uint_fixed_16_16_t method1, method2;
-	uint_fixed_16_16_t selected_result;
-	u32 blocks, lines, min_ddb_alloc = 0;
-
-	if (latency == 0 ||
-	    (use_minimal_wm0_only(crtc_state, plane) && level > 0)) {
-		/* reject it */
-		result->min_ddb_alloc = U16_MAX;
-		return;
-	}
-
-	/*
-	 * WaIncreaseLatencyIPCEnabled: kbl,cfl
-	 * Display WA #1141: kbl,cfl
-	 */
-	if ((IS_KABYLAKE(dev_priv) ||
-	     IS_COFFEELAKE(dev_priv) ||
-	     IS_COMETLAKE(dev_priv)) &&
-	    dev_priv->ipc_enabled)
-		latency += 4;
-
-	if (skl_needs_memory_bw_wa(dev_priv) && wp->x_tiled)
-		latency += 15;
-
-	method1 = skl_wm_method1(dev_priv, wp->plane_pixel_rate,
-				 wp->cpp, latency, wp->dbuf_block_size);
-	method2 = skl_wm_method2(wp->plane_pixel_rate,
-				 crtc_state->hw.pipe_mode.crtc_htotal,
-				 latency,
-				 wp->plane_blocks_per_line);
-
-	if (wp->y_tiled) {
-		selected_result = max_fixed16(method2, wp->y_tile_minimum);
-	} else {
-		if ((wp->cpp * crtc_state->hw.pipe_mode.crtc_htotal /
-		     wp->dbuf_block_size < 1) &&
-		     (wp->plane_bytes_per_line / wp->dbuf_block_size < 1)) {
-			selected_result = method2;
-		} else if (latency >= wp->linetime_us) {
-			if (DISPLAY_VER(dev_priv) == 9)
-				selected_result = min_fixed16(method1, method2);
-			else
-				selected_result = method2;
-		} else {
-			selected_result = method1;
-		}
-	}
-
-	blocks = fixed16_to_u32_round_up(selected_result) + 1;
-	/*
-	 * Lets have blocks at minimum equivalent to plane_blocks_per_line
-	 * as there will be at minimum one line for lines configuration. This
-	 * is a work around for FIFO underruns observed with resolutions like
-	 * 4k 60 Hz in single channel DRAM configurations.
-	 *
-	 * As per the Bspec 49325, if the ddb allocation can hold at least
-	 * one plane_blocks_per_line, we should have selected method2 in
-	 * the above logic. Assuming that modern versions have enough dbuf
-	 * and method2 guarantees blocks equivalent to at least 1 line,
-	 * select the blocks as plane_blocks_per_line.
-	 *
-	 * TODO: Revisit the logic when we have better understanding on DRAM
-	 * channels' impact on the level 0 memory latency and the relevant
-	 * wm calculations.
-	 */
-	if (skl_wm_has_lines(dev_priv, level))
-		blocks = max(blocks,
-			     fixed16_to_u32_round_up(wp->plane_blocks_per_line));
-	lines = div_round_up_fixed16(selected_result,
-				     wp->plane_blocks_per_line);
-
-	if (DISPLAY_VER(dev_priv) == 9) {
-		/* Display WA #1125: skl,bxt,kbl */
-		if (level == 0 && wp->rc_surface)
-			blocks += fixed16_to_u32_round_up(wp->y_tile_minimum);
-
-		/* Display WA #1126: skl,bxt,kbl */
-		if (level >= 1 && level <= 7) {
-			if (wp->y_tiled) {
-				blocks += fixed16_to_u32_round_up(wp->y_tile_minimum);
-				lines += wp->y_min_scanlines;
-			} else {
-				blocks++;
-			}
-
-			/*
-			 * Make sure result blocks for higher latency levels are
-			 * atleast as high as level below the current level.
-			 * Assumption in DDB algorithm optimization for special
-			 * cases. Also covers Display WA #1125 for RC.
-			 */
-			if (result_prev->blocks > blocks)
-				blocks = result_prev->blocks;
-		}
-	}
-
-	if (DISPLAY_VER(dev_priv) >= 11) {
-		if (wp->y_tiled) {
-			int extra_lines;
-
-			if (lines % wp->y_min_scanlines == 0)
-				extra_lines = wp->y_min_scanlines;
-			else
-				extra_lines = wp->y_min_scanlines * 2 -
-					lines % wp->y_min_scanlines;
-
-			min_ddb_alloc = mul_round_up_u32_fixed16(lines + extra_lines,
-								 wp->plane_blocks_per_line);
-		} else {
-			min_ddb_alloc = blocks + DIV_ROUND_UP(blocks, 10);
-		}
-	}
-
-	if (!skl_wm_has_lines(dev_priv, level))
-		lines = 0;
-
-	if (lines > skl_wm_max_lines(dev_priv)) {
-		/* reject it */
-		result->min_ddb_alloc = U16_MAX;
-		return;
-	}
-
-	/*
-	 * If lines is valid, assume we can use this watermark level
-	 * for now.  We'll come back and disable it after we calculate the
-	 * DDB allocation if it turns out we don't actually have enough
-	 * blocks to satisfy it.
-	 */
-	result->blocks = blocks;
-	result->lines = lines;
-	/* Bspec says: value >= plane ddb allocation -> invalid, hence the +1 here */
-	result->min_ddb_alloc = max(min_ddb_alloc, blocks) + 1;
-	result->enable = true;
-
-	if (DISPLAY_VER(dev_priv) < 12 && dev_priv->display.sagv.block_time_us)
-		result->can_sagv = latency >= dev_priv->display.sagv.block_time_us;
-}
-
-static void
-skl_compute_wm_levels(const struct intel_crtc_state *crtc_state,
-		      struct intel_plane *plane,
-		      const struct skl_wm_params *wm_params,
-		      struct skl_wm_level *levels)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
-	int level, max_level = ilk_wm_max_level(dev_priv);
-	struct skl_wm_level *result_prev = &levels[0];
-
-	for (level = 0; level <= max_level; level++) {
-		struct skl_wm_level *result = &levels[level];
-		unsigned int latency = dev_priv->display.wm.skl_latency[level];
-
-		skl_compute_plane_wm(crtc_state, plane, level, latency,
-				     wm_params, result_prev, result);
-
-		result_prev = result;
-	}
-}
-
-static void tgl_compute_sagv_wm(const struct intel_crtc_state *crtc_state,
-				struct intel_plane *plane,
-				const struct skl_wm_params *wm_params,
-				struct skl_plane_wm *plane_wm)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
-	struct skl_wm_level *sagv_wm = &plane_wm->sagv.wm0;
-	struct skl_wm_level *levels = plane_wm->wm;
-	unsigned int latency = 0;
-
-	if (dev_priv->display.sagv.block_time_us)
-		latency = dev_priv->display.sagv.block_time_us + dev_priv->display.wm.skl_latency[0];
-
-	skl_compute_plane_wm(crtc_state, plane, 0, latency,
-			     wm_params, &levels[0],
-			     sagv_wm);
-}
-
-static void skl_compute_transition_wm(struct drm_i915_private *dev_priv,
-				      struct skl_wm_level *trans_wm,
-				      const struct skl_wm_level *wm0,
-				      const struct skl_wm_params *wp)
-{
-	u16 trans_min, trans_amount, trans_y_tile_min;
-	u16 wm0_blocks, trans_offset, blocks;
-
-	/* Transition WM don't make any sense if ipc is disabled */
-	if (!dev_priv->ipc_enabled)
-		return;
-
-	/*
-	 * WaDisableTWM:skl,kbl,cfl,bxt
-	 * Transition WM are not recommended by HW team for GEN9
-	 */
-	if (DISPLAY_VER(dev_priv) == 9)
-		return;
-
-	if (DISPLAY_VER(dev_priv) >= 11)
-		trans_min = 4;
-	else
-		trans_min = 14;
-
-	/* Display WA #1140: glk,cnl */
-	if (DISPLAY_VER(dev_priv) == 10)
-		trans_amount = 0;
-	else
-		trans_amount = 10; /* This is configurable amount */
-
-	trans_offset = trans_min + trans_amount;
-
-	/*
-	 * The spec asks for Selected Result Blocks for wm0 (the real value),
-	 * not Result Blocks (the integer value). Pay attention to the capital
-	 * letters. The value wm_l0->blocks is actually Result Blocks, but
-	 * since Result Blocks is the ceiling of Selected Result Blocks plus 1,
-	 * and since we later will have to get the ceiling of the sum in the
-	 * transition watermarks calculation, we can just pretend Selected
-	 * Result Blocks is Result Blocks minus 1 and it should work for the
-	 * current platforms.
-	 */
-	wm0_blocks = wm0->blocks - 1;
-
-	if (wp->y_tiled) {
-		trans_y_tile_min =
-			(u16)mul_round_up_u32_fixed16(2, wp->y_tile_minimum);
-		blocks = max(wm0_blocks, trans_y_tile_min) + trans_offset;
-	} else {
-		blocks = wm0_blocks + trans_offset;
-	}
-	blocks++;
-
-	/*
-	 * Just assume we can enable the transition watermark.  After
-	 * computing the DDB we'll come back and disable it if that
-	 * assumption turns out to be false.
-	 */
-	trans_wm->blocks = blocks;
-	trans_wm->min_ddb_alloc = max_t(u16, wm0->min_ddb_alloc, blocks + 1);
-	trans_wm->enable = true;
-}
-
-static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state,
-				     const struct intel_plane_state *plane_state,
-				     struct intel_plane *plane, int color_plane)
-{
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane->id];
-	struct skl_wm_params wm_params;
-	int ret;
-
-	ret = skl_compute_plane_wm_params(crtc_state, plane_state,
-					  &wm_params, color_plane);
-	if (ret)
-		return ret;
-
-	skl_compute_wm_levels(crtc_state, plane, &wm_params, wm->wm);
-
-	skl_compute_transition_wm(dev_priv, &wm->trans_wm,
-				  &wm->wm[0], &wm_params);
-
-	if (DISPLAY_VER(dev_priv) >= 12) {
-		tgl_compute_sagv_wm(crtc_state, plane, &wm_params, wm);
-
-		skl_compute_transition_wm(dev_priv, &wm->sagv.trans_wm,
-					  &wm->sagv.wm0, &wm_params);
-	}
-
-	return 0;
-}
-
-static int skl_build_plane_wm_uv(struct intel_crtc_state *crtc_state,
-				 const struct intel_plane_state *plane_state,
-				 struct intel_plane *plane)
-{
-	struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane->id];
-	struct skl_wm_params wm_params;
-	int ret;
-
-	wm->is_planar = true;
-
-	/* uv plane watermarks must also be validated for NV12/Planar */
-	ret = skl_compute_plane_wm_params(crtc_state, plane_state,
-					  &wm_params, 1);
-	if (ret)
-		return ret;
-
-	skl_compute_wm_levels(crtc_state, plane, &wm_params, wm->uv_wm);
-
-	return 0;
-}
-
-static int skl_build_plane_wm(struct intel_crtc_state *crtc_state,
-			      const struct intel_plane_state *plane_state)
-{
-	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
-	enum plane_id plane_id = plane->id;
-	struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane_id];
-	const struct drm_framebuffer *fb = plane_state->hw.fb;
-	int ret;
-
-	memset(wm, 0, sizeof(*wm));
-
-	if (!intel_wm_plane_visible(crtc_state, plane_state))
-		return 0;
-
-	ret = skl_build_plane_wm_single(crtc_state, plane_state,
-					plane, 0);
-	if (ret)
-		return ret;
-
-	if (fb->format->is_yuv && fb->format->num_planes > 1) {
-		ret = skl_build_plane_wm_uv(crtc_state, plane_state,
-					    plane);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-
-static int icl_build_plane_wm(struct intel_crtc_state *crtc_state,
-			      const struct intel_plane_state *plane_state)
-{
-	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
-	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
-	enum plane_id plane_id = plane->id;
-	struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane_id];
-	int ret;
-
-	/* Watermarks calculated in master */
-	if (plane_state->planar_slave)
-		return 0;
-
-	memset(wm, 0, sizeof(*wm));
-
-	if (plane_state->planar_linked_plane) {
-		const struct drm_framebuffer *fb = plane_state->hw.fb;
-
-		drm_WARN_ON(&dev_priv->drm,
-			    !intel_wm_plane_visible(crtc_state, plane_state));
-		drm_WARN_ON(&dev_priv->drm, !fb->format->is_yuv ||
-			    fb->format->num_planes == 1);
-
-		ret = skl_build_plane_wm_single(crtc_state, plane_state,
-						plane_state->planar_linked_plane, 0);
-		if (ret)
-			return ret;
-
-		ret = skl_build_plane_wm_single(crtc_state, plane_state,
-						plane, 1);
-		if (ret)
-			return ret;
-	} else if (intel_wm_plane_visible(crtc_state, plane_state)) {
-		ret = skl_build_plane_wm_single(crtc_state, plane_state,
-						plane, 0);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-
-static int skl_build_pipe_wm(struct intel_atomic_state *state,
-			     struct intel_crtc *crtc)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	struct intel_crtc_state *crtc_state =
-		intel_atomic_get_new_crtc_state(state, crtc);
-	const struct intel_plane_state *plane_state;
-	struct intel_plane *plane;
-	int ret, i;
-
-	for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
-		/*
-		 * FIXME should perhaps check {old,new}_plane_crtc->hw.crtc
-		 * instead but we don't populate that correctly for NV12 Y
-		 * planes so for now hack this.
-		 */
-		if (plane->pipe != crtc->pipe)
-			continue;
-
-		if (DISPLAY_VER(dev_priv) >= 11)
-			ret = icl_build_plane_wm(crtc_state, plane_state);
-		else
-			ret = skl_build_plane_wm(crtc_state, plane_state);
-		if (ret)
-			return ret;
-	}
-
-	crtc_state->wm.skl.optimal = crtc_state->wm.skl.raw;
-
-	return 0;
-}
-
-static void skl_ddb_entry_write(struct drm_i915_private *dev_priv,
-				i915_reg_t reg,
-				const struct skl_ddb_entry *entry)
-{
-	if (entry->end)
-		intel_de_write_fw(dev_priv, reg,
-				  PLANE_BUF_END(entry->end - 1) |
-				  PLANE_BUF_START(entry->start));
-	else
-		intel_de_write_fw(dev_priv, reg, 0);
-}
-
-static void skl_write_wm_level(struct drm_i915_private *dev_priv,
-			       i915_reg_t reg,
-			       const struct skl_wm_level *level)
-{
-	u32 val = 0;
-
-	if (level->enable)
-		val |= PLANE_WM_EN;
-	if (level->ignore_lines)
-		val |= PLANE_WM_IGNORE_LINES;
-	val |= REG_FIELD_PREP(PLANE_WM_BLOCKS_MASK, level->blocks);
-	val |= REG_FIELD_PREP(PLANE_WM_LINES_MASK, level->lines);
-
-	intel_de_write_fw(dev_priv, reg, val);
-}
-
-void skl_write_plane_wm(struct intel_plane *plane,
-			const struct intel_crtc_state *crtc_state)
-{
-	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
-	int level, max_level = ilk_wm_max_level(dev_priv);
-	enum plane_id plane_id = plane->id;
-	enum pipe pipe = plane->pipe;
-	const struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal;
-	const struct skl_ddb_entry *ddb =
-		&crtc_state->wm.skl.plane_ddb[plane_id];
-	const struct skl_ddb_entry *ddb_y =
-		&crtc_state->wm.skl.plane_ddb_y[plane_id];
-
-	for (level = 0; level <= max_level; level++)
-		skl_write_wm_level(dev_priv, PLANE_WM(pipe, plane_id, level),
-				   skl_plane_wm_level(pipe_wm, plane_id, level));
-
-	skl_write_wm_level(dev_priv, PLANE_WM_TRANS(pipe, plane_id),
-			   skl_plane_trans_wm(pipe_wm, plane_id));
-
-	if (HAS_HW_SAGV_WM(dev_priv)) {
-		const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
-
-		skl_write_wm_level(dev_priv, PLANE_WM_SAGV(pipe, plane_id),
-				   &wm->sagv.wm0);
-		skl_write_wm_level(dev_priv, PLANE_WM_SAGV_TRANS(pipe, plane_id),
-				   &wm->sagv.trans_wm);
-	}
-
-	skl_ddb_entry_write(dev_priv,
-			    PLANE_BUF_CFG(pipe, plane_id), ddb);
-
-	if (DISPLAY_VER(dev_priv) < 11)
-		skl_ddb_entry_write(dev_priv,
-				    PLANE_NV12_BUF_CFG(pipe, plane_id), ddb_y);
-}
-
-void skl_write_cursor_wm(struct intel_plane *plane,
-			 const struct intel_crtc_state *crtc_state)
-{
-	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
-	int level, max_level = ilk_wm_max_level(dev_priv);
-	enum plane_id plane_id = plane->id;
-	enum pipe pipe = plane->pipe;
-	const struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal;
-	const struct skl_ddb_entry *ddb =
-		&crtc_state->wm.skl.plane_ddb[plane_id];
-
-	for (level = 0; level <= max_level; level++)
-		skl_write_wm_level(dev_priv, CUR_WM(pipe, level),
-				   skl_plane_wm_level(pipe_wm, plane_id, level));
-
-	skl_write_wm_level(dev_priv, CUR_WM_TRANS(pipe),
-			   skl_plane_trans_wm(pipe_wm, plane_id));
-
-	if (HAS_HW_SAGV_WM(dev_priv)) {
-		const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id];
-
-		skl_write_wm_level(dev_priv, CUR_WM_SAGV(pipe),
-				   &wm->sagv.wm0);
-		skl_write_wm_level(dev_priv, CUR_WM_SAGV_TRANS(pipe),
-				   &wm->sagv.trans_wm);
-	}
-
-	skl_ddb_entry_write(dev_priv, CUR_BUF_CFG(pipe), ddb);
-}
-
-static bool skl_wm_level_equals(const struct skl_wm_level *l1,
-				const struct skl_wm_level *l2)
-{
-	return l1->enable == l2->enable &&
-		l1->ignore_lines == l2->ignore_lines &&
-		l1->lines == l2->lines &&
-		l1->blocks == l2->blocks;
-}
-
-static bool skl_plane_wm_equals(struct drm_i915_private *dev_priv,
-				const struct skl_plane_wm *wm1,
-				const struct skl_plane_wm *wm2)
-{
-	int level, max_level = ilk_wm_max_level(dev_priv);
-
-	for (level = 0; level <= max_level; level++) {
-		/*
-		 * We don't check uv_wm as the hardware doesn't actually
-		 * use it. It only gets used for calculating the required
-		 * ddb allocation.
-		 */
-		if (!skl_wm_level_equals(&wm1->wm[level], &wm2->wm[level]))
-			return false;
-	}
-
-	return skl_wm_level_equals(&wm1->trans_wm, &wm2->trans_wm) &&
-		skl_wm_level_equals(&wm1->sagv.wm0, &wm2->sagv.wm0) &&
-		skl_wm_level_equals(&wm1->sagv.trans_wm, &wm2->sagv.trans_wm);
-}
-
-static bool skl_ddb_entries_overlap(const struct skl_ddb_entry *a,
-				    const struct skl_ddb_entry *b)
-{
-	return a->start < b->end && b->start < a->end;
-}
-
-static void skl_ddb_entry_union(struct skl_ddb_entry *a,
-				const struct skl_ddb_entry *b)
-{
-	if (a->end && b->end) {
-		a->start = min(a->start, b->start);
-		a->end = max(a->end, b->end);
-	} else if (b->end) {
-		a->start = b->start;
-		a->end = b->end;
-	}
-}
-
-bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
-				 const struct skl_ddb_entry *entries,
-				 int num_entries, int ignore_idx)
-{
-	int i;
-
-	for (i = 0; i < num_entries; i++) {
-		if (i != ignore_idx &&
-		    skl_ddb_entries_overlap(ddb, &entries[i]))
-			return true;
-	}
-
-	return false;
-}
-
-static int
-skl_ddb_add_affected_planes(const struct intel_crtc_state *old_crtc_state,
-			    struct intel_crtc_state *new_crtc_state)
-{
-	struct intel_atomic_state *state = to_intel_atomic_state(new_crtc_state->uapi.state);
-	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	struct intel_plane *plane;
-
-	for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
-		struct intel_plane_state *plane_state;
-		enum plane_id plane_id = plane->id;
-
-		if (skl_ddb_entry_equal(&old_crtc_state->wm.skl.plane_ddb[plane_id],
-					&new_crtc_state->wm.skl.plane_ddb[plane_id]) &&
-		    skl_ddb_entry_equal(&old_crtc_state->wm.skl.plane_ddb_y[plane_id],
-					&new_crtc_state->wm.skl.plane_ddb_y[plane_id]))
-			continue;
-
-		plane_state = intel_atomic_get_plane_state(state, plane);
-		if (IS_ERR(plane_state))
-			return PTR_ERR(plane_state);
-
-		new_crtc_state->update_planes |= BIT(plane_id);
-	}
-
-	return 0;
-}
-
-static u8 intel_dbuf_enabled_slices(const struct intel_dbuf_state *dbuf_state)
-{
-	struct drm_i915_private *dev_priv = to_i915(dbuf_state->base.state->base.dev);
-	u8 enabled_slices;
-	enum pipe pipe;
-
-	/*
-	 * FIXME: For now we always enable slice S1 as per
-	 * the Bspec display initialization sequence.
-	 */
-	enabled_slices = BIT(DBUF_S1);
-
-	for_each_pipe(dev_priv, pipe)
-		enabled_slices |= dbuf_state->slices[pipe];
-
-	return enabled_slices;
-}
-
-static int
-skl_compute_ddb(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	const struct intel_dbuf_state *old_dbuf_state;
-	struct intel_dbuf_state *new_dbuf_state = NULL;
-	const struct intel_crtc_state *old_crtc_state;
-	struct intel_crtc_state *new_crtc_state;
-	struct intel_crtc *crtc;
-	int ret, i;
-
-	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
-		new_dbuf_state = intel_atomic_get_dbuf_state(state);
-		if (IS_ERR(new_dbuf_state))
-			return PTR_ERR(new_dbuf_state);
-
-		old_dbuf_state = intel_atomic_get_old_dbuf_state(state);
-		break;
-	}
-
-	if (!new_dbuf_state)
-		return 0;
-
-	new_dbuf_state->active_pipes =
-		intel_calc_active_pipes(state, old_dbuf_state->active_pipes);
-
-	if (old_dbuf_state->active_pipes != new_dbuf_state->active_pipes) {
-		ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
-		if (ret)
-			return ret;
-	}
-
-	if (HAS_MBUS_JOINING(dev_priv))
-		new_dbuf_state->joined_mbus =
-			adlp_check_mbus_joined(new_dbuf_state->active_pipes);
-
-	for_each_intel_crtc(&dev_priv->drm, crtc) {
-		enum pipe pipe = crtc->pipe;
-
-		new_dbuf_state->slices[pipe] =
-			skl_compute_dbuf_slices(crtc, new_dbuf_state->active_pipes,
-						new_dbuf_state->joined_mbus);
-
-		if (old_dbuf_state->slices[pipe] == new_dbuf_state->slices[pipe])
-			continue;
-
-		ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
-		if (ret)
-			return ret;
-	}
-
-	new_dbuf_state->enabled_slices = intel_dbuf_enabled_slices(new_dbuf_state);
-
-	if (old_dbuf_state->enabled_slices != new_dbuf_state->enabled_slices ||
-	    old_dbuf_state->joined_mbus != new_dbuf_state->joined_mbus) {
-		ret = intel_atomic_serialize_global_state(&new_dbuf_state->base);
-		if (ret)
-			return ret;
-
-		if (old_dbuf_state->joined_mbus != new_dbuf_state->joined_mbus) {
-			/* TODO: Implement vblank synchronized MBUS joining changes */
-			ret = intel_modeset_all_pipes(state);
-			if (ret)
-				return ret;
-		}
-
-		drm_dbg_kms(&dev_priv->drm,
-			    "Enabled dbuf slices 0x%x -> 0x%x (total dbuf slices 0x%x), mbus joined? %s->%s\n",
-			    old_dbuf_state->enabled_slices,
-			    new_dbuf_state->enabled_slices,
-			    INTEL_INFO(dev_priv)->display.dbuf.slice_mask,
-			    str_yes_no(old_dbuf_state->joined_mbus),
-			    str_yes_no(new_dbuf_state->joined_mbus));
-	}
-
-	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
-		enum pipe pipe = crtc->pipe;
-
-		new_dbuf_state->weight[pipe] = intel_crtc_ddb_weight(new_crtc_state);
-
-		if (old_dbuf_state->weight[pipe] == new_dbuf_state->weight[pipe])
-			continue;
-
-		ret = intel_atomic_lock_global_state(&new_dbuf_state->base);
-		if (ret)
-			return ret;
-	}
-
-	for_each_intel_crtc(&dev_priv->drm, crtc) {
-		ret = skl_crtc_allocate_ddb(state, crtc);
-		if (ret)
-			return ret;
-	}
-
-	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
-					    new_crtc_state, i) {
-		ret = skl_crtc_allocate_plane_ddb(state, crtc);
-		if (ret)
-			return ret;
-
-		ret = skl_ddb_add_affected_planes(old_crtc_state,
-						  new_crtc_state);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-
-static char enast(bool enable)
-{
-	return enable ? '*' : ' ';
-}
-
-static void
-skl_print_wm_changes(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	const struct intel_crtc_state *old_crtc_state;
-	const struct intel_crtc_state *new_crtc_state;
-	struct intel_plane *plane;
-	struct intel_crtc *crtc;
-	int i;
-
-	if (!drm_debug_enabled(DRM_UT_KMS))
-		return;
-
-	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
-					    new_crtc_state, i) {
-		const struct skl_pipe_wm *old_pipe_wm, *new_pipe_wm;
-
-		old_pipe_wm = &old_crtc_state->wm.skl.optimal;
-		new_pipe_wm = &new_crtc_state->wm.skl.optimal;
-
-		for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
-			enum plane_id plane_id = plane->id;
-			const struct skl_ddb_entry *old, *new;
-
-			old = &old_crtc_state->wm.skl.plane_ddb[plane_id];
-			new = &new_crtc_state->wm.skl.plane_ddb[plane_id];
-
-			if (skl_ddb_entry_equal(old, new))
-				continue;
-
-			drm_dbg_kms(&dev_priv->drm,
-				    "[PLANE:%d:%s] ddb (%4d - %4d) -> (%4d - %4d), size %4d -> %4d\n",
-				    plane->base.base.id, plane->base.name,
-				    old->start, old->end, new->start, new->end,
-				    skl_ddb_entry_size(old), skl_ddb_entry_size(new));
-		}
-
-		for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
-			enum plane_id plane_id = plane->id;
-			const struct skl_plane_wm *old_wm, *new_wm;
-
-			old_wm = &old_pipe_wm->planes[plane_id];
-			new_wm = &new_pipe_wm->planes[plane_id];
-
-			if (skl_plane_wm_equals(dev_priv, old_wm, new_wm))
-				continue;
-
-			drm_dbg_kms(&dev_priv->drm,
-				    "[PLANE:%d:%s]   level %cwm0,%cwm1,%cwm2,%cwm3,%cwm4,%cwm5,%cwm6,%cwm7,%ctwm,%cswm,%cstwm"
-				    " -> %cwm0,%cwm1,%cwm2,%cwm3,%cwm4,%cwm5,%cwm6,%cwm7,%ctwm,%cswm,%cstwm\n",
-				    plane->base.base.id, plane->base.name,
-				    enast(old_wm->wm[0].enable), enast(old_wm->wm[1].enable),
-				    enast(old_wm->wm[2].enable), enast(old_wm->wm[3].enable),
-				    enast(old_wm->wm[4].enable), enast(old_wm->wm[5].enable),
-				    enast(old_wm->wm[6].enable), enast(old_wm->wm[7].enable),
-				    enast(old_wm->trans_wm.enable),
-				    enast(old_wm->sagv.wm0.enable),
-				    enast(old_wm->sagv.trans_wm.enable),
-				    enast(new_wm->wm[0].enable), enast(new_wm->wm[1].enable),
-				    enast(new_wm->wm[2].enable), enast(new_wm->wm[3].enable),
-				    enast(new_wm->wm[4].enable), enast(new_wm->wm[5].enable),
-				    enast(new_wm->wm[6].enable), enast(new_wm->wm[7].enable),
-				    enast(new_wm->trans_wm.enable),
-				    enast(new_wm->sagv.wm0.enable),
-				    enast(new_wm->sagv.trans_wm.enable));
-
-			drm_dbg_kms(&dev_priv->drm,
-				    "[PLANE:%d:%s]   lines %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%4d"
-				      " -> %c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%3d,%c%4d\n",
-				    plane->base.base.id, plane->base.name,
-				    enast(old_wm->wm[0].ignore_lines), old_wm->wm[0].lines,
-				    enast(old_wm->wm[1].ignore_lines), old_wm->wm[1].lines,
-				    enast(old_wm->wm[2].ignore_lines), old_wm->wm[2].lines,
-				    enast(old_wm->wm[3].ignore_lines), old_wm->wm[3].lines,
-				    enast(old_wm->wm[4].ignore_lines), old_wm->wm[4].lines,
-				    enast(old_wm->wm[5].ignore_lines), old_wm->wm[5].lines,
-				    enast(old_wm->wm[6].ignore_lines), old_wm->wm[6].lines,
-				    enast(old_wm->wm[7].ignore_lines), old_wm->wm[7].lines,
-				    enast(old_wm->trans_wm.ignore_lines), old_wm->trans_wm.lines,
-				    enast(old_wm->sagv.wm0.ignore_lines), old_wm->sagv.wm0.lines,
-				    enast(old_wm->sagv.trans_wm.ignore_lines), old_wm->sagv.trans_wm.lines,
-				    enast(new_wm->wm[0].ignore_lines), new_wm->wm[0].lines,
-				    enast(new_wm->wm[1].ignore_lines), new_wm->wm[1].lines,
-				    enast(new_wm->wm[2].ignore_lines), new_wm->wm[2].lines,
-				    enast(new_wm->wm[3].ignore_lines), new_wm->wm[3].lines,
-				    enast(new_wm->wm[4].ignore_lines), new_wm->wm[4].lines,
-				    enast(new_wm->wm[5].ignore_lines), new_wm->wm[5].lines,
-				    enast(new_wm->wm[6].ignore_lines), new_wm->wm[6].lines,
-				    enast(new_wm->wm[7].ignore_lines), new_wm->wm[7].lines,
-				    enast(new_wm->trans_wm.ignore_lines), new_wm->trans_wm.lines,
-				    enast(new_wm->sagv.wm0.ignore_lines), new_wm->sagv.wm0.lines,
-				    enast(new_wm->sagv.trans_wm.ignore_lines), new_wm->sagv.trans_wm.lines);
-
-			drm_dbg_kms(&dev_priv->drm,
-				    "[PLANE:%d:%s]  blocks %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%5d"
-				    " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%5d\n",
-				    plane->base.base.id, plane->base.name,
-				    old_wm->wm[0].blocks, old_wm->wm[1].blocks,
-				    old_wm->wm[2].blocks, old_wm->wm[3].blocks,
-				    old_wm->wm[4].blocks, old_wm->wm[5].blocks,
-				    old_wm->wm[6].blocks, old_wm->wm[7].blocks,
-				    old_wm->trans_wm.blocks,
-				    old_wm->sagv.wm0.blocks,
-				    old_wm->sagv.trans_wm.blocks,
-				    new_wm->wm[0].blocks, new_wm->wm[1].blocks,
-				    new_wm->wm[2].blocks, new_wm->wm[3].blocks,
-				    new_wm->wm[4].blocks, new_wm->wm[5].blocks,
-				    new_wm->wm[6].blocks, new_wm->wm[7].blocks,
-				    new_wm->trans_wm.blocks,
-				    new_wm->sagv.wm0.blocks,
-				    new_wm->sagv.trans_wm.blocks);
-
-			drm_dbg_kms(&dev_priv->drm,
-				    "[PLANE:%d:%s] min_ddb %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%5d"
-				    " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%5d\n",
-				    plane->base.base.id, plane->base.name,
-				    old_wm->wm[0].min_ddb_alloc, old_wm->wm[1].min_ddb_alloc,
-				    old_wm->wm[2].min_ddb_alloc, old_wm->wm[3].min_ddb_alloc,
-				    old_wm->wm[4].min_ddb_alloc, old_wm->wm[5].min_ddb_alloc,
-				    old_wm->wm[6].min_ddb_alloc, old_wm->wm[7].min_ddb_alloc,
-				    old_wm->trans_wm.min_ddb_alloc,
-				    old_wm->sagv.wm0.min_ddb_alloc,
-				    old_wm->sagv.trans_wm.min_ddb_alloc,
-				    new_wm->wm[0].min_ddb_alloc, new_wm->wm[1].min_ddb_alloc,
-				    new_wm->wm[2].min_ddb_alloc, new_wm->wm[3].min_ddb_alloc,
-				    new_wm->wm[4].min_ddb_alloc, new_wm->wm[5].min_ddb_alloc,
-				    new_wm->wm[6].min_ddb_alloc, new_wm->wm[7].min_ddb_alloc,
-				    new_wm->trans_wm.min_ddb_alloc,
-				    new_wm->sagv.wm0.min_ddb_alloc,
-				    new_wm->sagv.trans_wm.min_ddb_alloc);
-		}
-	}
-}
-
-static bool skl_plane_selected_wm_equals(struct intel_plane *plane,
-					 const struct skl_pipe_wm *old_pipe_wm,
-					 const struct skl_pipe_wm *new_pipe_wm)
-{
-	struct drm_i915_private *i915 = to_i915(plane->base.dev);
-	int level, max_level = ilk_wm_max_level(i915);
-
-	for (level = 0; level <= max_level; level++) {
-		/*
-		 * We don't check uv_wm as the hardware doesn't actually
-		 * use it. It only gets used for calculating the required
-		 * ddb allocation.
-		 */
-		if (!skl_wm_level_equals(skl_plane_wm_level(old_pipe_wm, plane->id, level),
-					 skl_plane_wm_level(new_pipe_wm, plane->id, level)))
-			return false;
-	}
-
-	if (HAS_HW_SAGV_WM(i915)) {
-		const struct skl_plane_wm *old_wm = &old_pipe_wm->planes[plane->id];
-		const struct skl_plane_wm *new_wm = &new_pipe_wm->planes[plane->id];
-
-		if (!skl_wm_level_equals(&old_wm->sagv.wm0, &new_wm->sagv.wm0) ||
-		    !skl_wm_level_equals(&old_wm->sagv.trans_wm, &new_wm->sagv.trans_wm))
-			return false;
-	}
-
-	return skl_wm_level_equals(skl_plane_trans_wm(old_pipe_wm, plane->id),
-				   skl_plane_trans_wm(new_pipe_wm, plane->id));
-}
-
-/*
- * To make sure the cursor watermark registers are always consistent
- * with our computed state the following scenario needs special
- * treatment:
- *
- * 1. enable cursor
- * 2. move cursor entirely offscreen
- * 3. disable cursor
- *
- * Step 2. does call .disable_plane() but does not zero the watermarks
- * (since we consider an offscreen cursor still active for the purposes
- * of watermarks). Step 3. would not normally call .disable_plane()
- * because the actual plane visibility isn't changing, and we don't
- * deallocate the cursor ddb until the pipe gets disabled. So we must
- * force step 3. to call .disable_plane() to update the watermark
- * registers properly.
- *
- * Other planes do not suffer from this issues as their watermarks are
- * calculated based on the actual plane visibility. The only time this
- * can trigger for the other planes is during the initial readout as the
- * default value of the watermarks registers is not zero.
- */
-static int skl_wm_add_affected_planes(struct intel_atomic_state *state,
-				      struct intel_crtc *crtc)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	const struct intel_crtc_state *old_crtc_state =
-		intel_atomic_get_old_crtc_state(state, crtc);
-	struct intel_crtc_state *new_crtc_state =
-		intel_atomic_get_new_crtc_state(state, crtc);
-	struct intel_plane *plane;
-
-	for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
-		struct intel_plane_state *plane_state;
-		enum plane_id plane_id = plane->id;
-
-		/*
-		 * Force a full wm update for every plane on modeset.
-		 * Required because the reset value of the wm registers
-		 * is non-zero, whereas we want all disabled planes to
-		 * have zero watermarks. So if we turn off the relevant
-		 * power well the hardware state will go out of sync
-		 * with the software state.
-		 */
-		if (!drm_atomic_crtc_needs_modeset(&new_crtc_state->uapi) &&
-		    skl_plane_selected_wm_equals(plane,
-						 &old_crtc_state->wm.skl.optimal,
-						 &new_crtc_state->wm.skl.optimal))
-			continue;
-
-		plane_state = intel_atomic_get_plane_state(state, plane);
-		if (IS_ERR(plane_state))
-			return PTR_ERR(plane_state);
-
-		new_crtc_state->update_planes |= BIT(plane_id);
-	}
-
-	return 0;
-}
-
-static int
-skl_compute_wm(struct intel_atomic_state *state)
-{
-	struct intel_crtc *crtc;
-	struct intel_crtc_state *new_crtc_state;
-	int ret, i;
-
-	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
-		ret = skl_build_pipe_wm(state, crtc);
-		if (ret)
-			return ret;
-	}
-
-	ret = skl_compute_ddb(state);
-	if (ret)
-		return ret;
-
-	ret = intel_compute_sagv_mask(state);
-	if (ret)
-		return ret;
-
-	/*
-	 * skl_compute_ddb() will have adjusted the final watermarks
-	 * based on how much ddb is available. Now we can actually
-	 * check if the final watermarks changed.
-	 */
-	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
-		ret = skl_wm_add_affected_planes(state, crtc);
-		if (ret)
-			return ret;
-	}
-
-	skl_print_wm_changes(state);
-
-	return 0;
-}
-
 static void ilk_compute_wm_config(struct drm_i915_private *dev_priv,
 				  struct intel_wm_config *config)
 {
···
 	crtc->wm.active.ilk = crtc_state->wm.ilk.optimal;
 	ilk_program_watermarks(dev_priv);
 	mutex_unlock(&dev_priv->display.wm.wm_mutex);
-}
-
-static void skl_wm_level_from_reg_val(u32 val, struct skl_wm_level *level)
-{
-	level->enable = val & PLANE_WM_EN;
-	level->ignore_lines = val & PLANE_WM_IGNORE_LINES;
-	level->blocks = REG_FIELD_GET(PLANE_WM_BLOCKS_MASK, val);
-	level->lines = REG_FIELD_GET(PLANE_WM_LINES_MASK, val);
-}
-
-static void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
-				     struct skl_pipe_wm *out)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	enum pipe pipe = crtc->pipe;
-	int level, max_level;
-	enum plane_id plane_id;
-	u32 val;
-
-	max_level = ilk_wm_max_level(dev_priv);
-
-	for_each_plane_id_on_crtc(crtc, plane_id) {
-		struct skl_plane_wm *wm = &out->planes[plane_id];
-
-		for (level = 0; level <= max_level; level++) {
-			if (plane_id != PLANE_CURSOR)
-				val = intel_uncore_read(&dev_priv->uncore, PLANE_WM(pipe, plane_id, level));
-			else
-				val = intel_uncore_read(&dev_priv->uncore, CUR_WM(pipe, level));
-
-			skl_wm_level_from_reg_val(val, &wm->wm[level]);
-		}
-
-		if (plane_id != PLANE_CURSOR)
-			val = intel_uncore_read(&dev_priv->uncore, PLANE_WM_TRANS(pipe, plane_id));
-		else
-			val = intel_uncore_read(&dev_priv->uncore, CUR_WM_TRANS(pipe));
-
-		skl_wm_level_from_reg_val(val, &wm->trans_wm);
-
-		if (HAS_HW_SAGV_WM(dev_priv)) {
-			if (plane_id != PLANE_CURSOR)
-				val = intel_uncore_read(&dev_priv->uncore,
-							PLANE_WM_SAGV(pipe, plane_id));
-			else
-				val = intel_uncore_read(&dev_priv->uncore,
-							CUR_WM_SAGV(pipe));
-
-			skl_wm_level_from_reg_val(val, &wm->sagv.wm0);
-
-			if (plane_id != PLANE_CURSOR)
-				val = intel_uncore_read(&dev_priv->uncore,
-							PLANE_WM_SAGV_TRANS(pipe, plane_id));
-			else
-				val = intel_uncore_read(&dev_priv->uncore,
-							CUR_WM_SAGV_TRANS(pipe));
-
-			skl_wm_level_from_reg_val(val, &wm->sagv.trans_wm);
-		} else if (DISPLAY_VER(dev_priv) >= 12) {
-			wm->sagv.wm0 = wm->wm[0];
-			wm->sagv.trans_wm = wm->trans_wm;
-		}
-	}
-}
-
-void skl_wm_get_hw_state(struct drm_i915_private *dev_priv)
-{
-	struct intel_dbuf_state *dbuf_state =
-		to_intel_dbuf_state(dev_priv->dbuf.obj.state);
-	struct intel_crtc *crtc;
-
-	if (HAS_MBUS_JOINING(dev_priv))
-		dbuf_state->joined_mbus = intel_de_read(dev_priv, MBUS_CTL) & MBUS_JOIN;
-
-	for_each_intel_crtc(&dev_priv->drm, crtc) {
-		struct intel_crtc_state *crtc_state =
-			to_intel_crtc_state(crtc->base.state);
-		enum pipe pipe = crtc->pipe;
-		unsigned int mbus_offset;
-		enum plane_id plane_id;
-		u8 slices;
-
-		memset(&crtc_state->wm.skl.optimal, 0,
-		       sizeof(crtc_state->wm.skl.optimal));
-		if (crtc_state->hw.active)
-			skl_pipe_wm_get_hw_state(crtc, &crtc_state->wm.skl.optimal);
-		crtc_state->wm.skl.raw = crtc_state->wm.skl.optimal;
-
-		memset(&dbuf_state->ddb[pipe], 0, sizeof(dbuf_state->ddb[pipe]));
-
-		for_each_plane_id_on_crtc(crtc, plane_id) {
-			struct skl_ddb_entry *ddb =
-				&crtc_state->wm.skl.plane_ddb[plane_id];
-			struct skl_ddb_entry *ddb_y =
-				&crtc_state->wm.skl.plane_ddb_y[plane_id];
-
-			if (!crtc_state->hw.active)
-				continue;
-
-			skl_ddb_get_hw_plane_state(dev_priv, crtc->pipe,
-						   plane_id, ddb, ddb_y);
-
-			skl_ddb_entry_union(&dbuf_state->ddb[pipe], ddb);
-			skl_ddb_entry_union(&dbuf_state->ddb[pipe], ddb_y);
-		}
-
-		dbuf_state->weight[pipe] = intel_crtc_ddb_weight(crtc_state);
-
-		/*
-		 * Used for checking overlaps, so we need absolute
-		 * offsets instead of MBUS relative offsets.
-		 */
-		slices = skl_compute_dbuf_slices(crtc, dbuf_state->active_pipes,
-						 dbuf_state->joined_mbus);
-		mbus_offset = mbus_ddb_offset(dev_priv, slices);
-		crtc_state->wm.skl.ddb.start = mbus_offset + dbuf_state->ddb[pipe].start;
-		crtc_state->wm.skl.ddb.end = mbus_offset + dbuf_state->ddb[pipe].end;
-
-		/* The slices actually used by the planes on the pipe */
-		dbuf_state->slices[pipe] =
-			skl_ddb_dbuf_slice_mask(dev_priv, &crtc_state->wm.skl.ddb);
-
-		drm_dbg_kms(&dev_priv->drm,
-			    "[CRTC:%d:%s] dbuf slices 0x%x, ddb (%d - %d), active pipes 0x%x, mbus joined: %s\n",
-			    crtc->base.base.id, crtc->base.name,
-			    dbuf_state->slices[pipe], dbuf_state->ddb[pipe].start,
-			    dbuf_state->ddb[pipe].end, dbuf_state->active_pipes,
-			    str_yes_no(dbuf_state->joined_mbus));
-	}
-
-	dbuf_state->enabled_slices = dev_priv->dbuf.enabled_slices;
-}
-
-static bool skl_dbuf_is_misconfigured(struct drm_i915_private *i915)
-{
-	const struct intel_dbuf_state *dbuf_state =
-		to_intel_dbuf_state(i915->dbuf.obj.state);
-	struct skl_ddb_entry entries[I915_MAX_PIPES] = {};
-	struct intel_crtc *crtc;
-
-	for_each_intel_crtc(&i915->drm, crtc) {
-		const struct intel_crtc_state *crtc_state =
-			to_intel_crtc_state(crtc->base.state);
-
-		entries[crtc->pipe] = crtc_state->wm.skl.ddb;
-	}
-
-	for_each_intel_crtc(&i915->drm, crtc) {
-		const struct intel_crtc_state *crtc_state =
-			to_intel_crtc_state(crtc->base.state);
-		u8 slices;
-
-		slices = skl_compute_dbuf_slices(crtc, dbuf_state->active_pipes,
-						 dbuf_state->joined_mbus);
-		if (dbuf_state->slices[crtc->pipe] & ~slices)
-			return true;
-
-		if (skl_ddb_allocation_overlaps(&crtc_state->wm.skl.ddb, entries,
-						I915_MAX_PIPES, crtc->pipe))
-			return true;
-	}
-
-	return false;
-}
-
-void skl_wm_sanitize(struct drm_i915_private *i915)
-{
-	struct intel_crtc *crtc;
-
-	/*
-	 * On TGL/RKL (at least) the BIOS likes to assign the planes
-	 * to the wrong DBUF slices. This will cause an infinite loop
-	 * in skl_commit_modeset_enables() as it can't find a way to
-	 * transition between the old bogus DBUF layout to the new
-	 * proper DBUF layout without DBUF allocation overlaps between
-	 * the planes (which cannot be allowed or else the hardware
-	 * may hang). If we detect a bogus DBUF layout just turn off
-	 * all the planes so that skl_commit_modeset_enables() can
-	 * simply ignore them.
-	 */
-	if (!skl_dbuf_is_misconfigured(i915))
-		return;
-
-	drm_dbg_kms(&i915->drm, "BIOS has misprogrammed the DBUF, disabling all planes\n");
-
-	for_each_intel_crtc(&i915->drm, crtc) {
-		struct intel_plane *plane = to_intel_plane(crtc->base.primary);
-		const struct intel_plane_state *plane_state =
-			to_intel_plane_state(plane->base.state);
-		struct intel_crtc_state *crtc_state =
-			to_intel_crtc_state(crtc->base.state);
-
-		if (plane_state->uapi.visible)
-			intel_plane_disable_noatomic(crtc, plane);
-
-		drm_WARN_ON(&i915->drm, crtc_state->active_planes != 0);
-
-		memset(&crtc_state->wm.skl.ddb, 0, sizeof(crtc_state->wm.skl.ddb));
-	}
 }
 
 static void ilk_pipe_wm_get_hw_state(struct intel_crtc *crtc)
···
 		!(intel_uncore_read(&dev_priv->uncore, DISP_ARB_CTL) & DISP_FBC_WM_DIS);
 }
 
-void intel_wm_state_verify(struct intel_crtc *crtc,
-			   struct intel_crtc_state *new_crtc_state)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	struct skl_hw_state {
-		struct skl_ddb_entry ddb[I915_MAX_PLANES];
-		struct skl_ddb_entry ddb_y[I915_MAX_PLANES];
-		struct skl_pipe_wm wm;
-	} *hw;
-	const struct skl_pipe_wm *sw_wm = &new_crtc_state->wm.skl.optimal;
-	int level, max_level = ilk_wm_max_level(dev_priv);
-	struct intel_plane *plane;
-	u8 hw_enabled_slices;
-
-	if (DISPLAY_VER(dev_priv) < 9 || !new_crtc_state->hw.active)
-		return;
-
-	hw = kzalloc(sizeof(*hw), GFP_KERNEL);
-	if (!hw)
-		return;
-
-	skl_pipe_wm_get_hw_state(crtc, &hw->wm);
-
-	skl_pipe_ddb_get_hw_state(crtc, hw->ddb, hw->ddb_y);
-
-	hw_enabled_slices = intel_enabled_dbuf_slices_mask(dev_priv);
-
-	if (DISPLAY_VER(dev_priv) >= 11 &&
-	    hw_enabled_slices != dev_priv->dbuf.enabled_slices)
-		drm_err(&dev_priv->drm,
-			"mismatch in DBUF Slices (expected 0x%x, got 0x%x)\n",
-			dev_priv->dbuf.enabled_slices,
-			hw_enabled_slices);
-
-	for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
-		const struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
-		const struct skl_wm_level *hw_wm_level, *sw_wm_level;
-
-		/* Watermarks */
-		for (level = 0; level <= max_level; level++) {
-			hw_wm_level = &hw->wm.planes[plane->id].wm[level];
-			sw_wm_level = skl_plane_wm_level(sw_wm, plane->id, level);
-
-			if (skl_wm_level_equals(hw_wm_level, sw_wm_level))
-				continue;
-
-			drm_err(&dev_priv->drm,
-				"[PLANE:%d:%s] mismatch in WM%d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
-				plane->base.base.id, plane->base.name, level,
-				sw_wm_level->enable,
-				sw_wm_level->blocks,
-				sw_wm_level->lines,
-				hw_wm_level->enable,
-				hw_wm_level->blocks,
-				hw_wm_level->lines);
-		}
-
-		hw_wm_level = &hw->wm.planes[plane->id].trans_wm;
-		sw_wm_level = skl_plane_trans_wm(sw_wm, plane->id);
-
-		if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
-			drm_err(&dev_priv->drm,
-				"[PLANE:%d:%s] mismatch in trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
-				plane->base.base.id, plane->base.name,
-				sw_wm_level->enable,
-				sw_wm_level->blocks,
-				sw_wm_level->lines,
-				hw_wm_level->enable,
-				hw_wm_level->blocks,
-				hw_wm_level->lines);
-		}
-
-		hw_wm_level = &hw->wm.planes[plane->id].sagv.wm0;
-		sw_wm_level = &sw_wm->planes[plane->id].sagv.wm0;
-
-		if (HAS_HW_SAGV_WM(dev_priv) &&
-		    !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
-			drm_err(&dev_priv->drm,
-				"[PLANE:%d:%s] mismatch in SAGV WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
-				plane->base.base.id, plane->base.name,
-				sw_wm_level->enable,
-				sw_wm_level->blocks,
-				sw_wm_level->lines,
-				hw_wm_level->enable,
-				hw_wm_level->blocks,
-				hw_wm_level->lines);
-		}
-
-		hw_wm_level = &hw->wm.planes[plane->id].sagv.trans_wm;
-		sw_wm_level = &sw_wm->planes[plane->id].sagv.trans_wm;
-
-		if (HAS_HW_SAGV_WM(dev_priv) &&
-		    !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
-			drm_err(&dev_priv->drm,
-				"[PLANE:%d:%s] mismatch in SAGV trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
-				plane->base.base.id, plane->base.name,
-				sw_wm_level->enable,
-				sw_wm_level->blocks,
-				sw_wm_level->lines,
-				hw_wm_level->enable,
-				hw_wm_level->blocks,
-				hw_wm_level->lines);
-		}
-
-		/* DDB */
-		hw_ddb_entry = &hw->ddb[PLANE_CURSOR];
-		sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb[PLANE_CURSOR];
-
-		if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
-			drm_err(&dev_priv->drm,
-				"[PLANE:%d:%s] mismatch in DDB (expected (%u,%u), found (%u,%u))\n",
-				plane->base.base.id, plane->base.name,
-				sw_ddb_entry->start, sw_ddb_entry->end,
-				hw_ddb_entry->start, hw_ddb_entry->end);
-		}
-	}
-
-	kfree(hw);
-}
-
-void intel_enable_ipc(struct drm_i915_private *dev_priv)
-{
-	u32 val;
-
-	if (!HAS_IPC(dev_priv))
-		return;
-
-	val = intel_uncore_read(&dev_priv->uncore, DISP_ARB_CTL2);
-
-	if (dev_priv->ipc_enabled)
-		val |= DISP_IPC_ENABLE;
-	else
-		val &= ~DISP_IPC_ENABLE;
-
-	intel_uncore_write(&dev_priv->uncore, DISP_ARB_CTL2, val);
-}
-
-static bool intel_can_enable_ipc(struct drm_i915_private *dev_priv)
-{
-	/* Display WA #0477 WaDisableIPC: skl */
-	if (IS_SKYLAKE(dev_priv))
-		return false;
-
-	/* Display WA #1141: SKL:all KBL:all CFL */
-	if (IS_KABYLAKE(dev_priv) ||
-	    IS_COFFEELAKE(dev_priv) ||
-	    IS_COMETLAKE(dev_priv))
-		return dev_priv->dram_info.symmetric_memory;
-
-	return true;
-}
-
-void intel_init_ipc(struct drm_i915_private *dev_priv)
-{
-	if (!HAS_IPC(dev_priv))
-		return;
-
-	dev_priv->ipc_enabled = intel_can_enable_ipc(dev_priv);
-
-	intel_enable_ipc(dev_priv);
-}
-
 static void ibx_init_clock_gating(struct drm_i915_private *dev_priv)
 {
 	/*
···
 		val = intel_uncore_read(&dev_priv->uncore, TRANS_CHICKEN2(pipe));
 		val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
 		val &= ~TRANS_CHICKEN2_FDI_POLARITY_REVERSED;
-		if (dev_priv->vbt.fdi_rx_polarity_inverted)
+		if (dev_priv->display.vbt.fdi_rx_polarity_inverted)
 			val |= TRANS_CHICKEN2_FDI_POLARITY_REVERSED;
 		val &= ~TRANS_CHICKEN2_DISABLE_DEEP_COLOR_COUNTER;
 		val &= ~TRANS_CHICKEN2_DISABLE_DEEP_COLOR_MODESWITCH;
···
 		OVCUNIT_CLOCK_GATE_DISABLE;
 	if (IS_GM45(dev_priv))
 		dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE;
-	intel_uncore_write(&dev_priv->uncore, DSPCLK_GATE_D, dspclk_gate);
+	intel_uncore_write(&dev_priv->uncore, DSPCLK_GATE_D(dev_priv), dspclk_gate);
 
 	g4x_disable_trickle_feed(dev_priv);
 }
···
 
 	intel_uncore_write(uncore, RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE);
 	intel_uncore_write(uncore, RENCLK_GATE_D2, 0);
-	intel_uncore_write(uncore, DSPCLK_GATE_D, 0);
+	intel_uncore_write(uncore, DSPCLK_GATE_D(dev_priv), 0);
 	intel_uncore_write(uncore, RAMCLK_GATE_D, 0);
 	intel_uncore_write16(uncore, DEUC, 0);
 	intel_uncore_write(uncore,
···
 	}
 }
 
-static const struct intel_wm_funcs skl_wm_funcs = {
-	.compute_global_watermarks = skl_compute_wm,
-};
-
 static const struct intel_wm_funcs ilk_wm_funcs = {
 	.compute_pipe_wm = ilk_compute_pipe_wm,
 	.compute_intermediate_wm = ilk_compute_intermediate_wm,
···
 /* Set up chip specific power management-related functions */
 void intel_init_pm(struct drm_i915_private *dev_priv)
 {
+	if (DISPLAY_VER(dev_priv) >= 9) {
+		skl_wm_init(dev_priv);
+		return;
+	}
+
 	/* For cxsr */
 	if (IS_PINEVIEW(dev_priv))
 		pnv_get_mem_freq(dev_priv);
 	else if (GRAPHICS_VER(dev_priv) == 5)
 		ilk_get_mem_freq(dev_priv);
 
-	intel_sagv_init(dev_priv);
-
 	/* For FIFO watermark updates */
-	if (DISPLAY_VER(dev_priv) >= 9) {
-		skl_setup_wm_latency(dev_priv);
-		dev_priv->display.funcs.wm = &skl_wm_funcs;
-	} else if (HAS_PCH_SPLIT(dev_priv)) {
+	if (HAS_PCH_SPLIT(dev_priv)) {
 		ilk_setup_wm_latency(dev_priv);
 
 		if ((DISPLAY_VER(dev_priv) == 5 && dev_priv->display.wm.pri_latency[1] &&
···
 {
 	dev_priv->runtime_pm.suspended = false;
 	atomic_set(&dev_priv->runtime_pm.wakeref_count, 0);
-}
-
-static struct intel_global_state *intel_dbuf_duplicate_state(struct intel_global_obj *obj)
-{
-	struct intel_dbuf_state *dbuf_state;
-
-	dbuf_state = kmemdup(obj->state, sizeof(*dbuf_state), GFP_KERNEL);
-	if (!dbuf_state)
-		return NULL;
-
-	return &dbuf_state->base;
-}
-
-static void intel_dbuf_destroy_state(struct intel_global_obj *obj,
-				     struct intel_global_state *state)
-{
-	kfree(state);
-}
-
-static const struct intel_global_state_funcs intel_dbuf_funcs = {
-	.atomic_duplicate_state = intel_dbuf_duplicate_state,
-	.atomic_destroy_state = intel_dbuf_destroy_state,
-};
-
-struct intel_dbuf_state *
-intel_atomic_get_dbuf_state(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	struct intel_global_state *dbuf_state;
-
-	dbuf_state = intel_atomic_get_global_obj_state(state, &dev_priv->dbuf.obj);
-	if (IS_ERR(dbuf_state))
-		return ERR_CAST(dbuf_state);
-
-	return to_intel_dbuf_state(dbuf_state);
-}
-
-int intel_dbuf_init(struct drm_i915_private *dev_priv)
-{
-	struct intel_dbuf_state *dbuf_state;
-
-	dbuf_state = kzalloc(sizeof(*dbuf_state), GFP_KERNEL);
-	if (!dbuf_state)
-		return -ENOMEM;
-
-	intel_atomic_global_obj_init(dev_priv, &dev_priv->dbuf.obj,
-				     &dbuf_state->base, &intel_dbuf_funcs);
-
-	return 0;
-}
-
-/*
- * Configure MBUS_CTL and all DBUF_CTL_S of each slice to join_mbus state before
- * update the request state of all DBUS slices.
- */
-static void update_mbus_pre_enable(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	u32 mbus_ctl, dbuf_min_tracker_val;
-	enum dbuf_slice slice;
-	const struct intel_dbuf_state *dbuf_state =
-		intel_atomic_get_new_dbuf_state(state);
-
-	if (!HAS_MBUS_JOINING(dev_priv))
-		return;
-
-	/*
-	 * TODO: Implement vblank synchronized MBUS joining changes.
-	 * Must be properly coordinated with dbuf reprogramming.
-	 */
-	if (dbuf_state->joined_mbus) {
-		mbus_ctl = MBUS_HASHING_MODE_1x4 | MBUS_JOIN |
-			MBUS_JOIN_PIPE_SELECT_NONE;
-		dbuf_min_tracker_val = DBUF_MIN_TRACKER_STATE_SERVICE(3);
-	} else {
-		mbus_ctl = MBUS_HASHING_MODE_2x2 |
-			MBUS_JOIN_PIPE_SELECT_NONE;
-		dbuf_min_tracker_val = DBUF_MIN_TRACKER_STATE_SERVICE(1);
-	}
-
-	intel_de_rmw(dev_priv, MBUS_CTL,
-		     MBUS_HASHING_MODE_MASK | MBUS_JOIN |
-		     MBUS_JOIN_PIPE_SELECT_MASK, mbus_ctl);
-
-	for_each_dbuf_slice(dev_priv, slice)
-		intel_de_rmw(dev_priv, DBUF_CTL_S(slice),
-			     DBUF_MIN_TRACKER_STATE_SERVICE_MASK,
-			     dbuf_min_tracker_val);
-}
-
-void intel_dbuf_pre_plane_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	const struct intel_dbuf_state *new_dbuf_state =
-		intel_atomic_get_new_dbuf_state(state);
-	const struct intel_dbuf_state *old_dbuf_state =
-		intel_atomic_get_old_dbuf_state(state);
-
-	if (!new_dbuf_state ||
-	    ((new_dbuf_state->enabled_slices == old_dbuf_state->enabled_slices)
-	    && (new_dbuf_state->joined_mbus == old_dbuf_state->joined_mbus)))
-		return;
-
-	WARN_ON(!new_dbuf_state->base.changed);
-
-	update_mbus_pre_enable(state);
-	gen9_dbuf_slices_update(dev_priv,
-				old_dbuf_state->enabled_slices |
-				new_dbuf_state->enabled_slices);
-}
-
-void intel_dbuf_post_plane_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-	const struct intel_dbuf_state *new_dbuf_state =
-		intel_atomic_get_new_dbuf_state(state);
-	const struct intel_dbuf_state *old_dbuf_state =
-		intel_atomic_get_old_dbuf_state(state);
-
-	if (!new_dbuf_state ||
-	    ((new_dbuf_state->enabled_slices == old_dbuf_state->enabled_slices)
-	    && (new_dbuf_state->joined_mbus == old_dbuf_state->joined_mbus)))
-		return;
-
-	WARN_ON(!new_dbuf_state->base.changed);
-
-	gen9_dbuf_slices_update(dev_priv,
-				new_dbuf_state->enabled_slices);
-}
-
-void intel_mbus_dbox_update(struct intel_atomic_state *state)
-{
-	struct drm_i915_private *i915 = to_i915(state->base.dev);
-	const struct intel_dbuf_state *new_dbuf_state, *old_dbuf_state;
-	const struct intel_crtc_state *new_crtc_state;
-	const struct intel_crtc *crtc;
-	u32 val = 0;
-	int i;
-
-	if (DISPLAY_VER(i915) < 11)
-		return;
-
-	new_dbuf_state = intel_atomic_get_new_dbuf_state(state);
-	old_dbuf_state = intel_atomic_get_old_dbuf_state(state);
-	if (!new_dbuf_state ||
-	    (new_dbuf_state->joined_mbus == old_dbuf_state->joined_mbus &&
-	     new_dbuf_state->active_pipes == old_dbuf_state->active_pipes))
-		return;
-
-	if (DISPLAY_VER(i915) >= 12) {
-		val |= MBUS_DBOX_B2B_TRANSACTIONS_MAX(16);
-		val |= MBUS_DBOX_B2B_TRANSACTIONS_DELAY(1);
-		val |= MBUS_DBOX_REGULATE_B2B_TRANSACTIONS_EN;
-	}
-
-	/* Wa_22010947358:adl-p */
-	if (IS_ALDERLAKE_P(i915))
-		val |= new_dbuf_state->joined_mbus ? MBUS_DBOX_A_CREDIT(6) :
-						     MBUS_DBOX_A_CREDIT(4);
-	else
-		val |= MBUS_DBOX_A_CREDIT(2);
-
-	if (IS_ALDERLAKE_P(i915)) {
-		val |= MBUS_DBOX_BW_CREDIT(2);
-		val |= MBUS_DBOX_B_CREDIT(8);
-	} else if (DISPLAY_VER(i915) >= 12) {
-		val |= MBUS_DBOX_BW_CREDIT(2);
-		val |= MBUS_DBOX_B_CREDIT(12);
-	} else {
-		val |= MBUS_DBOX_BW_CREDIT(1);
-		val |= MBUS_DBOX_B_CREDIT(8);
-	}
-
-	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
-		if (!new_crtc_state->hw.active ||
-		    !intel_crtc_needs_modeset(new_crtc_state))
-			continue;
-
-		intel_de_write(i915, PIPE_MBUS_DBOX_CTL(crtc->pipe), val);
-	}
 }

drivers/gpu/drm/i915/intel_pm.h

···
 
 #include <linux/types.h>
 
-#include "display/intel_display.h"
-#include "display/intel_global_state.h"
-
-#include "i915_drv.h"
-
-struct drm_device;
 struct drm_i915_private;
-struct i915_request;
-struct intel_atomic_state;
-struct intel_bw_state;
-struct intel_crtc;
 struct intel_crtc_state;
-struct intel_plane;
-struct skl_ddb_entry;
-struct skl_pipe_wm;
-struct skl_wm_level;
+struct intel_plane_state;
 
 void intel_init_clock_gating(struct drm_i915_private *dev_priv);
 void intel_suspend_hw(struct drm_i915_private *dev_priv);
···
 void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv);
 void vlv_wm_get_hw_state(struct drm_i915_private *dev_priv);
 void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv);
-void skl_wm_get_hw_state(struct drm_i915_private *dev_priv);
-void intel_wm_state_verify(struct intel_crtc *crtc,
-			   struct intel_crtc_state *new_crtc_state);
-u8 intel_enabled_dbuf_slices_mask(struct drm_i915_private *dev_priv);
-void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv);
-u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
-			    const struct skl_ddb_entry *entry);
 void g4x_wm_sanitize(struct drm_i915_private *dev_priv);
 void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
-void skl_wm_sanitize(struct drm_i915_private *dev_priv);
-bool intel_can_enable_sagv(struct drm_i915_private *dev_priv,
-			   const struct intel_bw_state *bw_state);
-void intel_sagv_pre_plane_update(struct intel_atomic_state *state);
-void intel_sagv_post_plane_update(struct intel_atomic_state *state);
-bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
-				 const struct skl_ddb_entry *entries,
-				 int num_entries, int ignore_idx);
-void skl_write_plane_wm(struct intel_plane *plane,
-			const struct intel_crtc_state *crtc_state);
-void skl_write_cursor_wm(struct intel_plane *plane,
-			 const struct intel_crtc_state *crtc_state);
 bool ilk_disable_lp_wm(struct drm_i915_private *dev_priv);
-void intel_init_ipc(struct drm_i915_private *dev_priv);
-void intel_enable_ipc(struct drm_i915_private *dev_priv);
+bool intel_wm_plane_visible(const struct intel_crtc_state *crtc_state,
+			    const struct intel_plane_state *plane_state);
+void intel_print_wm_latency(struct drm_i915_private *dev_priv,
+			    const char *name, const u16 wm[]);
 
 bool intel_set_memory_cxsr(struct drm_i915_private *dev_priv, bool enable);
-
-struct intel_dbuf_state {
-	struct intel_global_state base;
-
-	struct skl_ddb_entry ddb[I915_MAX_PIPES];
-	unsigned int weight[I915_MAX_PIPES];
-	u8 slices[I915_MAX_PIPES];
-	u8 enabled_slices;
-	u8 active_pipes;
-	bool joined_mbus;
-};
-
-struct intel_dbuf_state *
-intel_atomic_get_dbuf_state(struct intel_atomic_state *state);
-
-#define to_intel_dbuf_state(x) container_of((x), struct intel_dbuf_state, base)
-#define intel_atomic_get_old_dbuf_state(state) \
-	to_intel_dbuf_state(intel_atomic_get_old_global_obj_state(state, &to_i915(state->base.dev)->dbuf.obj))
-#define intel_atomic_get_new_dbuf_state(state) \
-	to_intel_dbuf_state(intel_atomic_get_new_global_obj_state(state, &to_i915(state->base.dev)->dbuf.obj))
-
-int intel_dbuf_init(struct drm_i915_private *dev_priv);
-void intel_dbuf_pre_plane_update(struct intel_atomic_state *state);
-void intel_dbuf_post_plane_update(struct intel_atomic_state *state);
-void intel_mbus_dbox_update(struct intel_atomic_state *state);
 
 #endif /* __INTEL_PM_H__ */

drivers/gpu/drm/i915/selftests/mock_gem_device.c

···
 	/* Using the global GTT may ask questions about KMS users, so prepare */
 	drm_mode_config_init(&i915->drm);
 
-	RUNTIME_INFO(i915)->graphics.ver = -1;
+	RUNTIME_INFO(i915)->graphics.ip.ver = -1;
 
 	RUNTIME_INFO(i915)->page_sizes =
 		I915_GTT_PAGE_SIZE_4K |