drm/i915/params: switch to device specific parameters

Start using device specific parameters instead of module parameters for
most things. The module parameters become the immutable initial values
for i915 parameters. The device specific parameters in i915->params
start life as a copy of i915_modparams. Any later changes are only
reflected in the debugfs.

The stragglers are:

* i915.force_probe and i915.modeset. Needed before dev_priv is
available. This is fine because the parameters are read-only and never
modified.

* i915.verbose_state_checks. Passing dev_priv to I915_STATE_WARN and
I915_STATE_WARN_ON would result in massive and ugly churn. This is
handled by not exposing the parameter via debugfs, and leaving the
parameter writable in sysfs. This may be fixed up in follow-up work.

* i915.inject_probe_failure. Only makes sense in terms of the module,
not the device. This is handled by not exposing the parameter via
debugfs.

v2: Fix uc i915 lookup code (Michał Winiarski)

Cc: Juha-Pekka Heikkilä <[e-mail]>
Cc: Venkata Sandeep Dhanalakota <[e-mail]>
Cc: Michał Winiarski <[e-mail]>
Reviewed-by: Rodrigo Vivi <[e-mail]>
Acked-by: Michał Winiarski <[e-mail]>
Signed-off-by: Jani Nikula <[e-mail]>
Link: http://patchwork.freedesktop.org/patch/msgid/[e-mail]

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

···
 	struct drm_display_mode *panel_fixed_mode;
 	int index;
 
-	index = i915_modparams.vbt_sdvo_panel_type;
+	index = dev_priv->params.vbt_sdvo_panel_type;
 	if (index == -2) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "Ignore SDVO panel mode from BIOS VBT tables.\n");
···
 		u8 vswing;
 
 		/* Don't read from VBT if module parameter has valid value*/
-		if (i915_modparams.edp_vswing) {
+		if (dev_priv->params.edp_vswing) {
 			dev_priv->vbt.edp.low_vswing =
-				i915_modparams.edp_vswing == 1;
+				dev_priv->params.edp_vswing == 1;
 		} else {
 			vswing = (edp->edp_vswing_preemph >> (panel_type * 4)) & 0xF;
 			dev_priv->vbt.edp.low_vswing = vswing == 0;

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

···
 		    connector->base.id, connector->name,
 		    force);
 
-	if (i915_modparams.load_detect_test) {
+	if (dev_priv->params.load_detect_test) {
 		wakeref = intel_display_power_get(dev_priv,
 						  intel_encoder->power_domain);
 		goto load_detect;
···
 		else if (INTEL_GEN(dev_priv) < 4)
 			status = intel_crt_load_detect(crt,
 				to_intel_crtc(connector->state->crtc)->pipe);
-		else if (i915_modparams.load_detect_test)
+		else if (dev_priv->params.load_detect_test)
 			status = connector_status_disconnected;
 		else
 			status = connector_status_unknown;

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

···
 		csr->max_fw_size = BXT_CSR_MAX_FW_SIZE;
 	}
 
-	if (i915_modparams.dmc_firmware_path) {
-		if (strlen(i915_modparams.dmc_firmware_path) == 0) {
+	if (dev_priv->params.dmc_firmware_path) {
+		if (strlen(dev_priv->params.dmc_firmware_path) == 0) {
 			csr->fw_path = NULL;
 			drm_info(&dev_priv->drm,
 				 "Disabling CSR firmware and runtime PM\n");
 			return;
 		}
 
-		csr->fw_path = i915_modparams.dmc_firmware_path;
+		csr->fw_path = dev_priv->params.dmc_firmware_path;
 		/* Bypass version check for firmware override. */
 		csr->required_version = 0;
 	}

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

···
 	int ret;
 
 	/* reset doesn't touch the display */
-	if (!i915_modparams.force_reset_modeset_test &&
+	if (!dev_priv->params.force_reset_modeset_test &&
 	    !gpu_reset_clobbers_display(dev_priv))
 		return;
 
···
 	if (!hsw_crtc_supports_ips(crtc))
 		return false;
 
-	if (!i915_modparams.enable_ips)
+	if (!dev_priv->params.enable_ips)
 		return false;
 
 	if (crtc_state->pipe_bpp > 24)
···
 
 static bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
 {
-	if (i915_modparams.panel_use_ssc >= 0)
-		return i915_modparams.panel_use_ssc != 0;
+	if (dev_priv->params.panel_use_ssc >= 0)
+		return dev_priv->params.panel_use_ssc != 0;
 	return dev_priv->vbt.lvds_use_ssc
 		&& !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
 }
···
 
 static bool fastboot_enabled(struct drm_i915_private *dev_priv)
 {
-	if (i915_modparams.fastboot != -1)
-		return i915_modparams.fastboot;
+	if (dev_priv->params.fastboot != -1)
+		return dev_priv->params.fastboot;
 
 	/* Enable fastboot by default on Skylake and newer */
 	if (INTEL_GEN(dev_priv) >= 9)

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

···
 	wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
 
 	seq_printf(m, "Enabled by kernel parameter: %s\n",
-		   yesno(i915_modparams.enable_ips));
+		   yesno(dev_priv->params.enable_ips));
 
 	if (INTEL_GEN(dev_priv) >= 8) {
 		seq_puts(m, "Currently: unknown\n");

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

···
 		mask = 0;
 	}
 
-	if (!i915_modparams.disable_power_well)
+	if (!dev_priv->params.disable_power_well)
 		max_dc = 0;
 
 	if (enable_dc >= 0 && enable_dc <= max_dc) {
···
 	struct i915_power_domains *power_domains = &dev_priv->power_domains;
 	int err;
 
-	i915_modparams.disable_power_well =
+	dev_priv->params.disable_power_well =
 		sanitize_disable_power_well_option(dev_priv,
-						   i915_modparams.disable_power_well);
+						   dev_priv->params.disable_power_well);
 	dev_priv->csr.allowed_dc_mask =
-		get_allowed_dc_mask(dev_priv, i915_modparams.enable_dc);
+		get_allowed_dc_mask(dev_priv, dev_priv->params.enable_dc);
 
 	dev_priv->csr.target_dc_state =
 		sanitize_target_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
···
 		intel_display_power_get(i915, POWER_DOMAIN_INIT);
 
 	/* Disable power support if the user asked so. */
-	if (!i915_modparams.disable_power_well)
+	if (!i915->params.disable_power_well)
 		intel_display_power_get(i915, POWER_DOMAIN_INIT);
 	intel_power_domains_sync_hw(i915);
 
···
 		fetch_and_zero(&i915->power_domains.wakeref);
 
 	/* Remove the refcount we took to keep power well support disabled. */
-	if (!i915_modparams.disable_power_well)
+	if (!i915->params.disable_power_well)
 		intel_display_power_put_unchecked(i915, POWER_DOMAIN_INIT);
 
 	intel_display_power_flush_work_sync(i915);
···
 	 * Even if power well support was disabled we still want to disable
 	 * power wells if power domains must be deinitialized for suspend.
 	 */
-	if (!i915_modparams.disable_power_well)
+	if (!i915->params.disable_power_well)
 		intel_display_power_put_unchecked(i915, POWER_DOMAIN_INIT);
 
 	intel_display_power_flush_work(i915);

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

···
 static bool
 intel_dp_can_mst(struct intel_dp *intel_dp)
 {
-	return i915_modparams.enable_dp_mst &&
+	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+
+	return i915->params.enable_dp_mst &&
 		intel_dp->can_mst &&
 		intel_dp_sink_can_mst(intel_dp);
 }
···
 		    "[ENCODER:%d:%s] MST support: port: %s, sink: %s, modparam: %s\n",
 		    encoder->base.base.id, encoder->base.name,
 		    yesno(intel_dp->can_mst), yesno(sink_can_mst),
-		    yesno(i915_modparams.enable_dp_mst));
+		    yesno(i915->params.enable_dp_mst));
 
 	if (!intel_dp->can_mst)
 		return;
 
 	intel_dp->is_mst = sink_can_mst &&
-		i915_modparams.enable_dp_mst;
+		i915->params.enable_dp_mst;
 
 	drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
 					intel_dp->is_mst);

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

···
 	struct intel_dp *intel_dp = enc_to_intel_dp(intel_connector->encoder);
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 
-	if (i915_modparams.enable_dpcd_backlight == 0 ||
+	if (i915->params.enable_dpcd_backlight == 0 ||
 	    !intel_dp_aux_display_control_capable(intel_connector))
 		return -ENODEV;
 
···
 	 */
 	if (i915->vbt.backlight.type !=
 	    INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE &&
-	    i915_modparams.enable_dpcd_backlight != 1 &&
+	    i915->params.enable_dpcd_backlight != 1 &&
 	    !drm_dp_has_quirk(&intel_dp->desc, intel_dp->edid_quirks,
 			      DP_QUIRK_FORCE_DPCD_BACKLIGHT)) {
 		drm_info(&i915->drm,

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

···
 		return false;
 	}
 
-	if (!i915_modparams.enable_fbc) {
+	if (!dev_priv->params.enable_fbc) {
 		fbc->no_fbc_reason = "disabled per module param or by default";
 		return false;
 	}
···
 
 	fbc->flip_pending = false;
 
-	if (!i915_modparams.enable_fbc) {
+	if (!dev_priv->params.enable_fbc) {
 		intel_fbc_deactivate(dev_priv, "disabled at runtime per module param");
 		__intel_fbc_disable(dev_priv);
 
···
  */
 static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv)
 {
-	if (i915_modparams.enable_fbc >= 0)
-		return !!i915_modparams.enable_fbc;
+	if (dev_priv->params.enable_fbc >= 0)
+		return !!dev_priv->params.enable_fbc;
 
 	if (!HAS_FBC(dev_priv))
 		return 0;
···
 	if (need_fbc_vtd_wa(dev_priv))
 		mkwrite_device_info(dev_priv)->display.has_fbc = false;
 
-	i915_modparams.enable_fbc = intel_sanitize_fbc_option(dev_priv);
+	dev_priv->params.enable_fbc = intel_sanitize_fbc_option(dev_priv);
 	drm_dbg_kms(&dev_priv->drm, "Sanitized enable_fbc value: %d\n",
-		    i915_modparams.enable_fbc);
+		    dev_priv->params.enable_fbc);
 
 	if (!HAS_FBC(dev_priv)) {
 		fbc->no_fbc_reason = "unsupported by this chipset";

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

···
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
 	/* use the module option value if specified */
-	if (i915_modparams.lvds_channel_mode > 0)
-		return i915_modparams.lvds_channel_mode == 2;
+	if (dev_priv->params.lvds_channel_mode > 0)
+		return dev_priv->params.lvds_channel_mode == 2;
 
 	/* single channel LVDS is limited to 112 MHz */
 	if (lvds_encoder->attached_connector->panel.fixed_mode->clock > 112999)

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

···
 {
 	struct intel_opregion *opregion = &dev_priv->opregion;
 	const struct firmware *fw = NULL;
-	const char *name = i915_modparams.vbt_firmware;
+	const char *name = dev_priv->params.vbt_firmware;
 	int ret;
 
 	if (!name || !*name)

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

···
 
 	drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
 
-	if (i915_modparams.invert_brightness < 0)
+	if (dev_priv->params.invert_brightness < 0)
 		return val;
 
-	if (i915_modparams.invert_brightness > 0 ||
+	if (dev_priv->params.invert_brightness > 0 ||
 	    dev_priv->quirks & QUIRK_INVERT_BRIGHTNESS) {
 		return panel->backlight.max - val + panel->backlight.min;
 	}

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

···
 {
 	switch (i915->psr.debug & I915_PSR_DEBUG_MODE_MASK) {
 	case I915_PSR_DEBUG_DEFAULT:
-		return i915_modparams.enable_psr;
+		return i915->params.enable_psr;
 	case I915_PSR_DEBUG_DISABLE:
 		return false;
 	default:
···
 	if (INTEL_GEN(dev_priv) >= 11)
 		val |= EDP_PSR_TP4_TIME_0US;
 
-	if (i915_modparams.psr_safest_params) {
+	if (dev_priv->params.psr_safest_params) {
 		val |= EDP_PSR_TP1_TIME_2500us;
 		val |= EDP_PSR_TP2_TP3_TIME_2500us;
 		goto check_tp3_sel;
···
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	u32 val = 0;
 
-	if (i915_modparams.psr_safest_params)
+	if (dev_priv->params.psr_safest_params)
 		return EDP_PSR2_TP2_TIME_2500us;
 
 	if (dev_priv->vbt.psr.psr2_tp2_tp3_wakeup_time_us >= 0 &&
···
 		 */
 		dev_priv->hsw_psr_mmio_adjust = _SRD_CTL_EDP - _HSW_EDP_PSR_BASE;
 
-	if (i915_modparams.enable_psr == -1)
+	if (dev_priv->params.enable_psr == -1)
 		if (INTEL_GEN(dev_priv) < 9 || !dev_priv->vbt.psr.enable)
-			i915_modparams.enable_psr = 0;
+			dev_priv->params.enable_psr = 0;
 
 	/* Set link_standby x link_off defaults */
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))

drivers/gpu/drm/i915/gem/i915_gem_context.c

···
 	 * context close.
 	 */
 	if (!i915_gem_context_is_persistent(ctx) ||
-	    !i915_modparams.enable_hangcheck)
+	    !ctx->i915->params.enable_hangcheck)
 		kill_context(ctx);
 
 	i915_gem_context_put(ctx);
···
 		 * reset] are allowed to survive past termination. We require
 		 * hangcheck to ensure that the persistent requests are healthy.
 		 */
-		if (!i915_modparams.enable_hangcheck)
+		if (!ctx->i915->params.enable_hangcheck)
 			return -EINVAL;
 
 		i915_gem_context_set_persistence(ctx);

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

···
  * Copyright © 2019 Intel Corporation
  */
 
+#include "i915_drv.h"
 #include "i915_request.h"
 
 #include "intel_context.h"
···
 		goto unlock;
 
 	idle_pulse(engine, rq);
-	if (i915_modparams.enable_hangcheck)
+	if (engine->i915->params.enable_hangcheck)
 		engine->heartbeat.systole = i915_request_get(rq);
 
 	__i915_request_commit(rq);

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

···
 
 bool intel_has_gpu_reset(const struct intel_gt *gt)
 {
-	if (!i915_modparams.reset)
+	if (!gt->i915->params.reset)
 		return NULL;
 
 	return intel_get_gpu_reset(gt);
···
 
 bool intel_has_reset_engine(const struct intel_gt *gt)
 {
-	if (i915_modparams.reset < 2)
+	if (gt->i915->params.reset < 2)
 		return false;
 
 	return INTEL_INFO(gt->i915)->has_reset_engine;
···
 	awake = reset_prepare(gt);
 
 	if (!intel_has_gpu_reset(gt)) {
-		if (i915_modparams.reset)
+		if (gt->i915->params.reset)
 			drm_err(&gt->i915->drm, "GPU reset not supported\n");
 		else
 			drm_dbg(&gt->i915->drm, "GPU reset disabled\n");

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

···
 	if (intel_gt_is_wedged(&i915->gt))
 		return 0;
 
-	saved_hangcheck = i915_modparams.enable_hangcheck;
-	i915_modparams.enable_hangcheck = INT_MAX;
+	saved_hangcheck = i915->params.enable_hangcheck;
+	i915->params.enable_hangcheck = INT_MAX;
 
 	err = intel_gt_live_subtests(tests, &i915->gt);
 
-	i915_modparams.enable_hangcheck = saved_hangcheck;
+	i915->params.enable_hangcheck = saved_hangcheck;
 	return err;
 }
 

drivers/gpu/drm/i915/gt/uc/intel_guc_log.c

···
 
 static u32 __get_default_log_level(struct intel_guc_log *log)
 {
+	struct intel_guc *guc = log_to_guc(log);
+	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+
 	/* A negative value means "use platform/config default" */
-	if (i915_modparams.guc_log_level < 0) {
+	if (i915->params.guc_log_level < 0) {
 		return (IS_ENABLED(CONFIG_DRM_I915_DEBUG) ||
 			IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)) ?
 			GUC_LOG_LEVEL_MAX : GUC_LOG_LEVEL_NON_VERBOSE;
 	}
 
-	if (i915_modparams.guc_log_level > GUC_LOG_LEVEL_MAX) {
+	if (i915->params.guc_log_level > GUC_LOG_LEVEL_MAX) {
 		DRM_WARN("Incompatible option detected: %s=%d, %s!\n",
-			 "guc_log_level", i915_modparams.guc_log_level,
+			 "guc_log_level", i915->params.guc_log_level,
 			 "verbosity too high");
 		return (IS_ENABLED(CONFIG_DRM_I915_DEBUG) ||
 			IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)) ?
 			GUC_LOG_LEVEL_MAX : GUC_LOG_LEVEL_DISABLED;
 	}
 
-	GEM_BUG_ON(i915_modparams.guc_log_level < GUC_LOG_LEVEL_DISABLED);
-	GEM_BUG_ON(i915_modparams.guc_log_level > GUC_LOG_LEVEL_MAX);
-	return i915_modparams.guc_log_level;
+	GEM_BUG_ON(i915->params.guc_log_level < GUC_LOG_LEVEL_DISABLED);
+	GEM_BUG_ON(i915->params.guc_log_level > GUC_LOG_LEVEL_MAX);
+	return i915->params.guc_log_level;
 }
 
 int intel_guc_log_create(struct intel_guc_log *log)

drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c

···
 
 static bool __guc_submission_selected(struct intel_guc *guc)
 {
+	struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+
 	if (!intel_guc_submission_is_supported(guc))
 		return false;
 
-	return i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION;
+	return i915->params.enable_guc & ENABLE_GUC_SUBMISSION;
 }
 
 void intel_guc_submission_init_early(struct intel_guc *guc)

drivers/gpu/drm/i915/gt/uc/intel_uc.c

···
 
 	drm_dbg(&i915->drm,
 		"enable_guc=%d (guc:%s submission:%s huc:%s)\n",
-		i915_modparams.enable_guc,
+		i915->params.enable_guc,
 		yesno(intel_uc_wants_guc(uc)),
 		yesno(intel_uc_wants_guc_submission(uc)),
 		yesno(intel_uc_wants_huc(uc)));
 
-	if (i915_modparams.enable_guc == -1)
+	if (i915->params.enable_guc == -1)
 		return;
 
-	if (i915_modparams.enable_guc == 0) {
+	if (i915->params.enable_guc == 0) {
 		GEM_BUG_ON(intel_uc_wants_guc(uc));
 		GEM_BUG_ON(intel_uc_wants_guc_submission(uc));
 		GEM_BUG_ON(intel_uc_wants_huc(uc));
···
 	if (!intel_uc_supports_guc(uc))
 		drm_info(&i915->drm,
 			 "Incompatible option enable_guc=%d - %s\n",
-			 i915_modparams.enable_guc, "GuC is not supported!");
+			 i915->params.enable_guc, "GuC is not supported!");
 
-	if (i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC &&
+	if (i915->params.enable_guc & ENABLE_GUC_LOAD_HUC &&
 	    !intel_uc_supports_huc(uc))
 		drm_info(&i915->drm,
 			 "Incompatible option enable_guc=%d - %s\n",
-			 i915_modparams.enable_guc, "HuC is not supported!");
+			 i915->params.enable_guc, "HuC is not supported!");
 
-	if (i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION &&
+	if (i915->params.enable_guc & ENABLE_GUC_SUBMISSION &&
 	    !intel_uc_supports_guc_submission(uc))
 		drm_info(&i915->drm,
 			 "Incompatible option enable_guc=%d - %s\n",
-			 i915_modparams.enable_guc, "GuC submission is N/A");
+			 i915->params.enable_guc, "GuC submission is N/A");
 
-	if (i915_modparams.enable_guc & ~(ENABLE_GUC_SUBMISSION |
+	if (i915->params.enable_guc & ~(ENABLE_GUC_SUBMISSION |
 					  ENABLE_GUC_LOAD_HUC))
 		drm_info(&i915->drm,
 			 "Incompatible option enable_guc=%d - %s\n",
-			 i915_modparams.enable_guc, "undocumented flag");
+			 i915->params.enable_guc, "undocumented flag");
 }
 
 void intel_uc_init_early(struct intel_uc *uc)

drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c

···
 },
 
 static void
-__uc_fw_auto_select(struct intel_uc_fw *uc_fw, enum intel_platform p, u8 rev)
+__uc_fw_auto_select(struct drm_i915_private *i915, struct intel_uc_fw *uc_fw)
 {
 	static const struct uc_fw_platform_requirement fw_blobs[] = {
 		INTEL_UC_FIRMWARE_DEFS(MAKE_FW_LIST, GUC_FW_BLOB, HUC_FW_BLOB)
 	};
+	enum intel_platform p = INTEL_INFO(i915)->platform;
+	u8 rev = INTEL_REVID(i915);
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(fw_blobs) && p <= fw_blobs[i].p; i++) {
···
 	}
 
 	/* We don't want to enable GuC/HuC on pre-Gen11 by default */
-	if (i915_modparams.enable_guc == -1 && p < INTEL_ICELAKE)
+	if (i915->params.enable_guc == -1 && p < INTEL_ICELAKE)
 		uc_fw->path = NULL;
 }
 
-static const char *__override_guc_firmware_path(void)
+static const char *__override_guc_firmware_path(struct drm_i915_private *i915)
 {
-	if (i915_modparams.enable_guc & (ENABLE_GUC_SUBMISSION |
-					 ENABLE_GUC_LOAD_HUC))
-		return i915_modparams.guc_firmware_path;
+	if (i915->params.enable_guc & (ENABLE_GUC_SUBMISSION |
+				       ENABLE_GUC_LOAD_HUC))
+		return i915->params.guc_firmware_path;
 	return "";
 }
 
-static const char *__override_huc_firmware_path(void)
+static const char *__override_huc_firmware_path(struct drm_i915_private *i915)
 {
-	if (i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC)
-		return i915_modparams.huc_firmware_path;
+	if (i915->params.enable_guc & ENABLE_GUC_LOAD_HUC)
+		return i915->params.huc_firmware_path;
 	return "";
 }
 
-static void __uc_fw_user_override(struct intel_uc_fw *uc_fw)
+static void __uc_fw_user_override(struct drm_i915_private *i915, struct intel_uc_fw *uc_fw)
 {
 	const char *path = NULL;
 
 	switch (uc_fw->type) {
 	case INTEL_UC_FW_TYPE_GUC:
-		path = __override_guc_firmware_path();
+		path = __override_guc_firmware_path(i915);
 		break;
 	case INTEL_UC_FW_TYPE_HUC:
-		path = __override_huc_firmware_path();
+		path = __override_huc_firmware_path(i915);
 		break;
 	}
 
···
 	uc_fw->type = type;
 
 	if (HAS_GT_UC(i915)) {
-		__uc_fw_auto_select(uc_fw,
-				    INTEL_INFO(i915)->platform,
-				    INTEL_REVID(i915));
-		__uc_fw_user_override(uc_fw);
+		__uc_fw_auto_select(i915, uc_fw);
+		__uc_fw_user_override(i915, uc_fw);
 	}
 
 	intel_uc_fw_change_status(uc_fw, uc_fw->path ? *uc_fw->path ?

drivers/gpu/drm/i915/i915_debugfs.c

···
 	intel_driver_caps_print(&i915->caps, &p);
 
 	kernel_param_lock(THIS_MODULE);
-	i915_params_dump(&i915_modparams, &p);
+	i915_params_dump(&i915->params, &p);
 	kernel_param_unlock(THIS_MODULE);
 
 	return 0;

drivers/gpu/drm/i915/i915_debugfs_params.c

···
 	char **s = m->private;
 	char *new, *old;
 
-	/* FIXME: remove locking after params aren't the module params */
-	kernel_param_lock(THIS_MODULE);
-
 	old = *s;
 	new = strndup_user(ubuf, PAGE_SIZE);
 	if (IS_ERR(new)) {
···
 
 	kfree(old);
 out:
-	kernel_param_unlock(THIS_MODULE);
-
 	return len;
 }
 
···
 struct dentry *i915_debugfs_params(struct drm_i915_private *i915)
 {
 	struct drm_minor *minor = i915->drm.primary;
-	struct i915_params *params = &i915_modparams;
+	struct i915_params *params = &i915->params;
 	struct dentry *dir;
 
 	dir = debugfs_create_dir("i915_params", minor->debugfs_root);

drivers/gpu/drm/i915/i915_drv.c

···
 
 	cpu_latency_qos_remove_request(&dev_priv->sb_qos);
 	mutex_destroy(&dev_priv->sb_lock);
+
+	i915_params_free(&dev_priv->params);
 }
 
 /**
···
 	i915->drm.pdev = pdev;
 	pci_set_drvdata(pdev, i915);
 
+	/* Device parameters start as a copy of module parameters. */
+	i915_params_copy(&i915->params, &i915_modparams);
+
 	/* Setup the write-once "constant" device info */
 	device_info = mkwrite_device_info(i915);
 	memcpy(device_info, match_info, sizeof(*device_info));
···
 		return PTR_ERR(i915);
 
 	/* Disable nuclear pageflip by default on pre-ILK */
-	if (!i915_modparams.nuclear_pageflip && match_info->gen < 5)
+	if (!i915->params.nuclear_pageflip && match_info->gen < 5)
 		i915->drm.driver_features &= ~DRIVER_ATOMIC;
 
 	/*
···
 #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
 	if (IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM)) {
 		if (INTEL_GEN(i915) >= 9 && i915_selftest.live < 0 &&
-		    i915_modparams.fake_lmem_start) {
+		    i915->params.fake_lmem_start) {
 			mkwrite_device_info(i915)->memory_regions =
 				REGION_SMEM | REGION_LMEM | REGION_STOLEN;
 			mkwrite_device_info(i915)->is_dgfx = true;

drivers/gpu/drm/i915/i915_drv.h

···
 struct drm_i915_private {
 	struct drm_device drm;
 
+	/* i915 device parameters */
+	struct i915_params params;
+
 	const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
 	struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
 	struct intel_driver_caps caps;
···
 
 /* Only valid when HAS_DISPLAY() is true */
 #define INTEL_DISPLAY_ENABLED(dev_priv) \
-		(drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !i915_modparams.disable_display)
+	(drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
 
 static inline bool intel_vtd_active(void)
 {

drivers/gpu/drm/i915/i915_getparam.c

···
 			return -ENODEV;
 		break;
 	case I915_PARAM_HAS_GPU_RESET:
-		value = i915_modparams.enable_hangcheck &&
+		value = i915->params.enable_hangcheck &&
 			intel_has_gpu_reset(&i915->gt);
 		if (value && intel_has_reset_engine(&i915->gt))
 			value = 2;

drivers/gpu/drm/i915/i915_gpu_error.c

···
 	error->reset_count = i915_reset_count(&i915->gpu_error);
 	error->suspend_count = i915->suspend_count;
 
-	i915_params_copy(&error->params, &i915_modparams);
+	i915_params_copy(&error->params, &i915->params);
 	memcpy(&error->device_info,
 	       INTEL_INFO(i915),
 	       sizeof(error->device_info));
···
 {
 	struct i915_gpu_coredump *error;
 
-	if (!i915_modparams.error_capture)
+	if (!i915->params.error_capture)
 		return NULL;
 
 	error = kzalloc(sizeof(*error), gfp);

drivers/gpu/drm/i915/intel_gvt.c

···
  */
 void intel_gvt_sanitize_options(struct drm_i915_private *dev_priv)
 {
-	if (!i915_modparams.enable_gvt)
+	if (!dev_priv->params.enable_gvt)
 		return;
 
 	if (intel_vgpu_active(dev_priv)) {
···
 
 	return;
 bail:
-	i915_modparams.enable_gvt = 0;
+	dev_priv->params.enable_gvt = 0;
 }
 
 /**
···
 	if (i915_inject_probe_failure(dev_priv))
 		return -ENODEV;
 
-	if (!i915_modparams.enable_gvt) {
+	if (!dev_priv->params.enable_gvt) {
 		drm_dbg(&dev_priv->drm,
 			"GVT-g is disabled by kernel params\n");
 		return 0;
···
 	return 0;
 
 bail:
-	i915_modparams.enable_gvt = 0;
+	dev_priv->params.enable_gvt = 0;
 	return 0;
 }
 

drivers/gpu/drm/i915/intel_region_lmem.c

···
 {
 	int ret;
 
-	if (i915_modparams.fake_lmem_start) {
+	if (mem->i915->params.fake_lmem_start) {
 		ret = init_fake_lmem_bar(mem);
 		GEM_BUG_ON(ret);
 	}
···
 	resource_size_t start;
 
 	GEM_BUG_ON(i915_ggtt_has_aperture(&i915->ggtt));
-	GEM_BUG_ON(!i915_modparams.fake_lmem_start);
+	GEM_BUG_ON(!i915->params.fake_lmem_start);
 
 	/* Your mappable aperture belongs to me now! */
 	mappable_end = pci_resource_len(pdev, 2);
 	io_start = pci_resource_start(pdev, 2),
-	start = i915_modparams.fake_lmem_start;
+	start = i915->params.fake_lmem_start;
 
 	mem = intel_memory_region_create(i915,
 					 start,

drivers/gpu/drm/i915/intel_uncore.c

···
 		     read ? "read from" : "write to",
 		     i915_mmio_reg_offset(reg)))
 		/* Only report the first N failures */
-		i915_modparams.mmio_debug--;
+		uncore->i915->params.mmio_debug--;
 }
 
 static inline void
···
 		    const bool read,
 		    const bool before)
 {
-	if (likely(!i915_modparams.mmio_debug))
+	if (likely(!uncore->i915->params.mmio_debug))
 		return;
 
 	/* interrupts are disabled and re-enabled around uncore->lock usage */
···
 		goto out;
 
 	if (unlikely(check_for_unclaimed_mmio(uncore))) {
-		if (!i915_modparams.mmio_debug) {
+		if (!uncore->i915->params.mmio_debug) {
 			drm_dbg(&uncore->i915->drm,
 				"Unclaimed register detected, "
 				"enabling oneshot unclaimed register reporting. "
 				"Please use i915.mmio_debug=N for more information.\n");
-			i915_modparams.mmio_debug++;
+			uncore->i915->params.mmio_debug++;
 		}
 		uncore->debug->unclaimed_mmio_check--;
 		ret = true;