drm/amd/display: Add VPG and AFMT low power support for DCN3.1

[WHY]
Power down VPG and AFMT blocks when not in use

[HOW]
Create afmt31 and vpg31 structs and add necessary fields to reg list

Reviewed-by: Eric Yang <[e-mail]>
Acked-by: Mikita Lipski <[e-mail]>
Signed-off-by: Michael Strauss <[e-mail]>
Tested-by: Daniel Wheeler <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/display/dc/core/dc.c

···
 
 #include "dmub/dmub_srv.h"
 
+#include "dcn30/dcn30_vpg.h"
+
 #include "i2caux_interface.h"
 #include "dce/dmub_hw_lock_mgr.h"
 
···
 		enum surface_update_type update_type,
 		struct dc_state *context)
 {
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	struct vpg *vpg;
+#endif
 	int j;
 
 	// Stream updates
···
 					stream_update->vrr_infopacket ||
 					stream_update->vsc_infopacket ||
 					stream_update->vsp_infopacket) {
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+				vpg = pipe_ctx->stream_res.stream_enc->vpg;
+				if (vpg && vpg->funcs->vpg_poweron)
+					vpg->funcs->vpg_poweron(vpg);
+#endif
 				resource_build_info_frame(pipe_ctx);
 				dc->hwss.update_info_frame(pipe_ctx);
 			}

drivers/gpu/drm/amd/display/dc/core/dc_link.c

···
 #include "inc/link_enc_cfg.h"
 #include "inc/link_dpcd.h"
 
+#include "dc/dcn30/dcn30_vpg.h"
+
 #define DC_LOGGER_INIT(logger)
 
 #define LINK_INFO(...) \
···
 	struct link_encoder *link_enc;
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	enum otg_out_mux_dest otg_out_dest = OUT_MUX_DIO;
+	struct vpg *vpg = pipe_ctx->stream_res.stream_enc->vpg;
 #endif
 	DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger);
 
···
 			pipe_ctx->stream->apply_edp_fast_boot_optimization;
 
 		pipe_ctx->stream->apply_edp_fast_boot_optimization = false;
+
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+		// Enable VPG before building infoframe
+		if (vpg && vpg->funcs->vpg_poweron)
+			vpg->funcs->vpg_poweron(vpg);
+#endif
 
 		resource_build_info_frame(pipe_ctx);
 		dc->hwss.update_info_frame(pipe_ctx);
···
 	struct dc  *dc = pipe_ctx->stream->ctx->dc;
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	struct dc_link *link = stream->sink->link;
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	struct vpg *vpg = pipe_ctx->stream_res.stream_enc->vpg;
+#endif
 
 	if (!IS_DIAG_DC(dc->ctx->dce_environment) &&
 			dc_is_virtual_signal(pipe_ctx->stream->signal))
···
 		if (pipe_ctx->stream_res.tg->funcs->set_out_mux)
 			pipe_ctx->stream_res.tg->funcs->set_out_mux(pipe_ctx->stream_res.tg, OUT_MUX_DIO);
 	}
+#endif
+
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	if (vpg && vpg->funcs->vpg_powerdown)
+		vpg->funcs->vpg_powerdown(vpg);
 #endif
 }
 

drivers/gpu/drm/amd/display/dc/dc.h

···
 		bool cm: 1;
 		bool mpc: 1;
 		bool optc: 1;
+		bool vpg: 1;
+		bool afmt: 1;
 	} bits;
 	uint32_t u32All;
 };

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c

···
 #include "hw_shared.h"
 #include "inc/link_dpcd.h"
 #include "dpcd_defs.h"
+#include "dcn30/dcn30_afmt.h"
 
 #define DC_LOGGER \
 		enc1->base.ctx->logger
···
 	struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
 	uint32_t value = 0;
 
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	if (enc->afmt && enc->afmt->funcs->afmt_powerdown)
+		enc->afmt->funcs->afmt_powerdown(enc->afmt);
+#endif
+
 	/* Disable Audio packets */
 	REG_UPDATE_5(DP_SEC_CNTL,
 			DP_SEC_ASP_ENABLE, 0,
···
 void enc1_se_hdmi_audio_disable(
 	struct stream_encoder *enc)
 {
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+	if (enc->afmt && enc->afmt->funcs->afmt_powerdown)
+		enc->afmt->funcs->afmt_powerdown(enc->afmt);
+#endif
 	enc1_se_enable_audio_clock(enc, false);
 }
 

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_afmt.c

···
 	afmt3->base.ctx
 
 
-static void afmt3_setup_hdmi_audio(
+void afmt3_setup_hdmi_audio(
 	struct afmt *afmt)
 {
 	struct dcn30_afmt *afmt3 = DCN30_AFMT_FROM_AFMT(afmt);
+
+	if (afmt->funcs->afmt_poweron)
+		afmt->funcs->afmt_poweron(afmt);
 
 	/* AFMT_AUDIO_PACKET_CONTROL */
 	REG_UPDATE(AFMT_AUDIO_PACKET_CONTROL, AFMT_60958_CS_UPDATE, 1);
···
 	return cea_channels;
 }
 
-static void afmt3_se_audio_setup(
+void afmt3_se_audio_setup(
 	struct afmt *afmt,
 	unsigned int az_inst,
 	struct audio_info *audio_info)
···
 	REG_UPDATE(AFMT_AUDIO_PACKET_CONTROL2, AFMT_AUDIO_CHANNEL_ENABLE, channels);
 
 	/* Disable forced mem power off */
-	REG_UPDATE(AFMT_MEM_PWR, AFMT_MEM_PWR_FORCE, 0);
+	if (afmt->funcs->afmt_poweron == NULL)
+		REG_UPDATE(AFMT_MEM_PWR, AFMT_MEM_PWR_FORCE, 0);
 }
 
-static void afmt3_audio_mute_control(
+void afmt3_audio_mute_control(
 	struct afmt *afmt,
 	bool mute)
 {
 	struct dcn30_afmt *afmt3 = DCN30_AFMT_FROM_AFMT(afmt);
-
+	if (mute && afmt->funcs->afmt_powerdown)
+		afmt->funcs->afmt_powerdown(afmt);
+	if (!mute && afmt->funcs->afmt_poweron)
+		afmt->funcs->afmt_poweron(afmt);
 	/* enable/disable transmission of audio packets */
 	REG_UPDATE(AFMT_AUDIO_PACKET_CONTROL, AFMT_AUDIO_SAMPLE_SEND, !mute);
 }
 
-static void afmt3_audio_info_immediate_update(
+void afmt3_audio_info_immediate_update(
 	struct afmt *afmt)
 {
 	struct dcn30_afmt *afmt3 = DCN30_AFMT_FROM_AFMT(afmt);
···
 	REG_UPDATE(AFMT_INFOFRAME_CONTROL0, AFMT_AUDIO_INFO_UPDATE, 1);
 }
 
-static void afmt3_setup_dp_audio(
+void afmt3_setup_dp_audio(
 		struct afmt *afmt)
 {
 	struct dcn30_afmt *afmt3 = DCN30_AFMT_FROM_AFMT(afmt);
+
+	if (afmt->funcs->afmt_poweron)
+		afmt->funcs->afmt_poweron(afmt);
 
 	/* AFMT_AUDIO_PACKET_CONTROL */
 	REG_UPDATE(AFMT_AUDIO_PACKET_CONTROL, AFMT_60958_CS_UPDATE, 1);

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_afmt.h

···
 
 	void (*setup_dp_audio)(
 		struct afmt *afmt);
+
+	void (*afmt_poweron)(
+		struct afmt *afmt);
+
+	void (*afmt_powerdown)(
+		struct afmt *afmt);
 };
 
 struct afmt {
···
 	const struct dcn30_afmt_shift *afmt_shift;
 	const struct dcn30_afmt_mask *afmt_mask;
 };
+
+void afmt3_setup_hdmi_audio(
+	struct afmt *afmt);
+
+void afmt3_se_audio_setup(
+	struct afmt *afmt,
+	unsigned int az_inst,
+	struct audio_info *audio_info);
+
+void afmt3_audio_mute_control(
+	struct afmt *afmt,
+	bool mute);
+
+void afmt3_audio_info_immediate_update(
+	struct afmt *afmt);
+
+void afmt3_setup_dp_audio(
+		struct afmt *afmt);
 
 void afmt3_construct(struct dcn30_afmt *afmt3,
 	struct dc_context *ctx,

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dio_stream_encoder.c

···
 static void enc3_se_dp_audio_enable(
 	struct stream_encoder *enc)
 {
+	if (enc->afmt->funcs->afmt_poweron)
+		enc->afmt->funcs->afmt_poweron(enc->afmt);
 	enc1_se_enable_audio_clock(enc, true);
 	enc3_se_setup_dp_audio(enc);
 	enc1_se_enable_dp_audio(enc);

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_vpg.c

···
 	vpg3->base.ctx
 
 
-static void vpg3_update_generic_info_packet(
+void vpg3_update_generic_info_packet(
 	struct vpg *vpg,
 	uint32_t packet_index,
 	const struct dc_info_packet *info_packet)

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_vpg.h

···
 		struct vpg *vpg,
 		uint32_t packet_index,
 		const struct dc_info_packet *info_packet);
+
+	void (*vpg_poweron)(
+		struct vpg *vpg);
+
+	void (*vpg_powerdown)(
+		struct vpg *vpg);
 };
 
 struct vpg {
···
 	const struct dcn30_vpg_shift *vpg_shift;
 	const struct dcn30_vpg_mask *vpg_mask;
 };
+
+void vpg3_update_generic_info_packet(
+	struct vpg *vpg,
+	uint32_t packet_index,
+	const struct dc_info_packet *info_packet);
 
 void vpg3_construct(struct dcn30_vpg *vpg3,
 	struct dc_context *ctx,

drivers/gpu/drm/amd/display/dc/dcn31/Makefile

···
 
 DCN31 = dcn31_resource.o dcn31_hubbub.o dcn31_hwseq.o dcn31_init.o dcn31_hubp.o \
 	dcn31_dccg.o dcn31_optc.o dcn31_dio_link_encoder.o dcn31_panel_cntl.o \
-	dcn31_apg.o dcn31_hpo_dp_stream_encoder.o dcn31_hpo_dp_link_encoder.o
+	dcn31_apg.o dcn31_hpo_dp_stream_encoder.o dcn31_hpo_dp_link_encoder.o \
+	dcn31_afmt.o dcn31_vpg.o
 
 ifdef CONFIG_X86
 CFLAGS_$(AMDDALPATH)/dc/dcn31/dcn31_resource.o := -msse

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_afmt.c

···
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dc_bios_types.h"
+#include "hw_shared.h"
+#include "dcn30/dcn30_afmt.h"
+#include "dcn31_afmt.h"
+#include "reg_helper.h"
+#include "dc/dc.h"
+
+#define DC_LOGGER \
+		afmt31->base.ctx->logger
+
+#define REG(reg)\
+	(afmt31->regs->reg)
+
+#undef FN
+#define FN(reg_name, field_name) \
+	afmt31->afmt_shift->field_name, afmt31->afmt_mask->field_name
+
+
+#define CTX \
+	afmt31->base.ctx
+
+static struct afmt_funcs dcn31_afmt_funcs = {
+	.setup_hdmi_audio		= afmt3_setup_hdmi_audio,
+	.se_audio_setup			= afmt3_se_audio_setup,
+	.audio_mute_control		= afmt3_audio_mute_control,
+	.audio_info_immediate_update	= afmt3_audio_info_immediate_update,
+	.setup_dp_audio			= afmt3_setup_dp_audio,
+	.afmt_powerdown			= afmt31_powerdown,
+	.afmt_poweron			= afmt31_poweron
+};
+
+void afmt31_powerdown(struct afmt *afmt)
+{
+	struct dcn31_afmt *afmt31 = DCN31_AFMT_FROM_AFMT(afmt);
+
+	if (afmt->ctx->dc->debug.enable_mem_low_power.bits.afmt == false)
+		return;
+
+	REG_UPDATE_2(AFMT_MEM_PWR, AFMT_MEM_PWR_DIS, 0, AFMT_MEM_PWR_FORCE, 1);
+}
+
+void afmt31_poweron(struct afmt *afmt)
+{
+	struct dcn31_afmt *afmt31 = DCN31_AFMT_FROM_AFMT(afmt);
+
+	if (afmt->ctx->dc->debug.enable_mem_low_power.bits.afmt == false)
+		return;
+
+	REG_UPDATE_2(AFMT_MEM_PWR, AFMT_MEM_PWR_DIS, 1, AFMT_MEM_PWR_FORCE, 0);
+}
+
+void afmt31_construct(struct dcn31_afmt *afmt31,
+	struct dc_context *ctx,
+	uint32_t inst,
+	const struct dcn31_afmt_registers *afmt_regs,
+	const struct dcn31_afmt_shift *afmt_shift,
+	const struct dcn31_afmt_mask *afmt_mask)
+{
+	afmt31->base.ctx = ctx;
+
+	afmt31->base.inst = inst;
+	afmt31->base.funcs = &dcn31_afmt_funcs;
+
+	afmt31->regs = afmt_regs;
+	afmt31->afmt_shift = afmt_shift;
+	afmt31->afmt_mask = afmt_mask;
+}

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_afmt.h

···
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_DCN31_AFMT_H__
+#define __DAL_DCN31_AFMT_H__
+
+
+#define DCN31_AFMT_FROM_AFMT(afmt)\
+	container_of(afmt, struct dcn31_afmt, base)
+
+#define AFMT_DCN31_REG_LIST(id) \
+	SRI(AFMT_INFOFRAME_CONTROL0, AFMT, id), \
+	SRI(AFMT_VBI_PACKET_CONTROL, AFMT, id), \
+	SRI(AFMT_AUDIO_PACKET_CONTROL, AFMT, id), \
+	SRI(AFMT_AUDIO_PACKET_CONTROL2, AFMT, id), \
+	SRI(AFMT_AUDIO_SRC_CONTROL, AFMT, id), \
+	SRI(AFMT_60958_0, AFMT, id), \
+	SRI(AFMT_60958_1, AFMT, id), \
+	SRI(AFMT_60958_2, AFMT, id), \
+	SRI(AFMT_MEM_PWR, AFMT, id)
+
+struct dcn31_afmt_registers {
+	uint32_t AFMT_INFOFRAME_CONTROL0;
+	uint32_t AFMT_VBI_PACKET_CONTROL;
+	uint32_t AFMT_AUDIO_PACKET_CONTROL;
+	uint32_t AFMT_AUDIO_PACKET_CONTROL2;
+	uint32_t AFMT_AUDIO_SRC_CONTROL;
+	uint32_t AFMT_60958_0;
+	uint32_t AFMT_60958_1;
+	uint32_t AFMT_60958_2;
+	uint32_t AFMT_MEM_PWR;
+};
+
+#define DCN31_AFMT_MASK_SH_LIST(mask_sh)\
+	SE_SF(AFMT0_AFMT_INFOFRAME_CONTROL0, AFMT_AUDIO_INFO_UPDATE, mask_sh),\
+	SE_SF(AFMT0_AFMT_AUDIO_SRC_CONTROL, AFMT_AUDIO_SRC_SELECT, mask_sh),\
+	SE_SF(AFMT0_AFMT_AUDIO_PACKET_CONTROL2, AFMT_AUDIO_CHANNEL_ENABLE, mask_sh),\
+	SE_SF(AFMT0_AFMT_AUDIO_PACKET_CONTROL, AFMT_60958_CS_UPDATE, mask_sh),\
+	SE_SF(AFMT0_AFMT_AUDIO_PACKET_CONTROL2, AFMT_AUDIO_LAYOUT_OVRD, mask_sh),\
+	SE_SF(AFMT0_AFMT_AUDIO_PACKET_CONTROL2, AFMT_60958_OSF_OVRD, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_0, AFMT_60958_CS_CHANNEL_NUMBER_L, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_0, AFMT_60958_CS_CLOCK_ACCURACY, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_1, AFMT_60958_CS_CHANNEL_NUMBER_R, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_2, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_3, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_4, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_5, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_6, mask_sh),\
+	SE_SF(AFMT0_AFMT_60958_2, AFMT_60958_CS_CHANNEL_NUMBER_7, mask_sh),\
+	SE_SF(AFMT0_AFMT_AUDIO_PACKET_CONTROL, AFMT_AUDIO_SAMPLE_SEND, mask_sh),\
+	SE_SF(AFMT0_AFMT_MEM_PWR, AFMT_MEM_PWR_FORCE, mask_sh),\
+	SE_SF(AFMT0_AFMT_MEM_PWR, AFMT_MEM_PWR_DIS, mask_sh),\
+	SE_SF(AFMT0_AFMT_MEM_PWR, AFMT_MEM_PWR_STATE, mask_sh)
+
+#define AFMT_DCN31_REG_FIELD_LIST(type) \
+		type AFMT_AUDIO_INFO_UPDATE;\
+		type AFMT_AUDIO_SRC_SELECT;\
+		type AFMT_AUDIO_CHANNEL_ENABLE;\
+		type AFMT_60958_CS_UPDATE;\
+		type AFMT_AUDIO_LAYOUT_OVRD;\
+		type AFMT_60958_OSF_OVRD;\
+		type AFMT_60958_CS_CHANNEL_NUMBER_L;\
+		type AFMT_60958_CS_CLOCK_ACCURACY;\
+		type AFMT_60958_CS_CHANNEL_NUMBER_R;\
+		type AFMT_60958_CS_CHANNEL_NUMBER_2;\
+		type AFMT_60958_CS_CHANNEL_NUMBER_3;\
+		type AFMT_60958_CS_CHANNEL_NUMBER_4;\
+		type AFMT_60958_CS_CHANNEL_NUMBER_5;\
+		type AFMT_60958_CS_CHANNEL_NUMBER_6;\
+		type AFMT_60958_CS_CHANNEL_NUMBER_7;\
+		type AFMT_AUDIO_SAMPLE_SEND;\
+		type AFMT_MEM_PWR_FORCE;\
+		type AFMT_MEM_PWR_DIS;\
+		type AFMT_MEM_PWR_STATE
+
+struct dcn31_afmt_shift {
+	AFMT_DCN31_REG_FIELD_LIST(uint8_t);
+};
+
+struct dcn31_afmt_mask {
+	AFMT_DCN31_REG_FIELD_LIST(uint32_t);
+};
+
+struct dcn31_afmt {
+	struct afmt base;
+	const struct dcn31_afmt_registers *regs;
+	const struct dcn31_afmt_shift *afmt_shift;
+	const struct dcn31_afmt_mask *afmt_mask;
+};
+
+void afmt31_poweron(
+		struct afmt *afmt);
+
+void afmt31_powerdown(
+		struct afmt *afmt);
+
+void afmt31_construct(struct dcn31_afmt *afmt31,
+	struct dc_context *ctx,
+	uint32_t inst,
+	const struct dcn31_afmt_registers *afmt_regs,
+	const struct dcn31_afmt_shift *afmt_shift,
+	const struct dcn31_afmt_mask *afmt_mask);
+
+#endif

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c

···
 #include "dcn31/dcn31_hpo_dp_link_encoder.h"
 #include "dcn31/dcn31_apg.h"
 #include "dcn31/dcn31_dio_link_encoder.h"
+#include "dcn31/dcn31_vpg.h"
+#include "dcn31/dcn31_afmt.h"
 #include "dce/dce_clock_source.h"
 #include "dce/dce_audio.h"
 #include "dce/dce_hwseq.h"
···
 
 #define vpg_regs(id)\
 [id] = {\
-	VPG_DCN3_REG_LIST(id)\
+	VPG_DCN31_REG_LIST(id)\
 }
 
-static const struct dcn30_vpg_registers vpg_regs[] = {
+static const struct dcn31_vpg_registers vpg_regs[] = {
 	vpg_regs(0),
 	vpg_regs(1),
 	vpg_regs(2),
···
 	vpg_regs(9),
 };
 
-static const struct dcn30_vpg_shift vpg_shift = {
-	DCN3_VPG_MASK_SH_LIST(__SHIFT)
+static const struct dcn31_vpg_shift vpg_shift = {
+	DCN31_VPG_MASK_SH_LIST(__SHIFT)
 };
 
-static const struct dcn30_vpg_mask vpg_mask = {
-	DCN3_VPG_MASK_SH_LIST(_MASK)
+static const struct dcn31_vpg_mask vpg_mask = {
+	DCN31_VPG_MASK_SH_LIST(_MASK)
 };
 
 #define afmt_regs(id)\
 [id] = {\
-	AFMT_DCN3_REG_LIST(id)\
+	AFMT_DCN31_REG_LIST(id)\
 }
 
-static const struct dcn30_afmt_registers afmt_regs[] = {
+static const struct dcn31_afmt_registers afmt_regs[] = {
 	afmt_regs(0),
 	afmt_regs(1),
 	afmt_regs(2),
···
 	afmt_regs(5)
 };
 
-static const struct dcn30_afmt_shift afmt_shift = {
-	DCN3_AFMT_MASK_SH_LIST(__SHIFT)
+static const struct dcn31_afmt_shift afmt_shift = {
+	DCN31_AFMT_MASK_SH_LIST(__SHIFT)
 };
 
-static const struct dcn30_afmt_mask afmt_mask = {
-	DCN3_AFMT_MASK_SH_LIST(_MASK)
+static const struct dcn31_afmt_mask afmt_mask = {
+	DCN31_AFMT_MASK_SH_LIST(_MASK)
 };
 
 #define apg_regs(id)\
···
 			.cm = false,
 			.mpc = false,
 			.optc = false,
+			.vpg = false,
+			.afmt = false,
 		}
 	},
 	.optimize_edp_link_rate = true,
···
 	struct dc_context *ctx,
 	uint32_t inst)
 {
-	struct dcn30_vpg *vpg3 = kzalloc(sizeof(struct dcn30_vpg), GFP_KERNEL);
+	struct dcn31_vpg *vpg31 = kzalloc(sizeof(struct dcn31_vpg), GFP_KERNEL);
 
-	if (!vpg3)
+	if (!vpg31)
 		return NULL;
 
-	vpg3_construct(vpg3, ctx, inst,
+	vpg31_construct(vpg31, ctx, inst,
 			&vpg_regs[inst],
 			&vpg_shift,
 			&vpg_mask);
 
-	return &vpg3->base;
+	// Will re-enable hw block when we enable stream
+	// Check for enabled stream before powering down?
+	vpg31_powerdown(&vpg31->base);
+
+	return &vpg31->base;
 }
 
 static struct afmt *dcn31_afmt_create(
 	struct dc_context *ctx,
 	uint32_t inst)
 {
-	struct dcn30_afmt *afmt3 = kzalloc(sizeof(struct dcn30_afmt), GFP_KERNEL);
+	struct dcn31_afmt *afmt31 = kzalloc(sizeof(struct dcn31_afmt), GFP_KERNEL);
 
-	if (!afmt3)
+	if (!afmt31)
 		return NULL;
 
-	afmt3_construct(afmt3, ctx, inst,
+	afmt31_construct(afmt31, ctx, inst,
 			&afmt_regs[inst],
 			&afmt_shift,
 			&afmt_mask);
 
-	return &afmt3->base;
+	// Light sleep by default, no need to power down here
+
+	return &afmt31->base;
 }
 
 static struct apg *dcn31_apg_create(

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_vpg.c

···
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dc_bios_types.h"
+#include "dcn30/dcn30_vpg.h"
+#include "dcn31_vpg.h"
+#include "reg_helper.h"
+#include "dc/dc.h"
+
+#define DC_LOGGER \
+		vpg31->base.ctx->logger
+
+#define REG(reg)\
+	(vpg31->regs->reg)
+
+#undef FN
+#define FN(reg_name, field_name) \
+	vpg31->vpg_shift->field_name, vpg31->vpg_mask->field_name
+
+
+#define CTX \
+	vpg31->base.ctx
+
+static struct vpg_funcs dcn31_vpg_funcs = {
+	.update_generic_info_packet	= vpg3_update_generic_info_packet,
+	.vpg_poweron = vpg31_poweron,
+	.vpg_powerdown = vpg31_powerdown,
+};
+
+void vpg31_powerdown(struct vpg *vpg)
+{
+	struct dcn31_vpg *vpg31 = DCN31_VPG_FROM_VPG(vpg);
+
+	if (vpg->ctx->dc->debug.enable_mem_low_power.bits.vpg == false)
+		return;
+
+	REG_UPDATE_2(VPG_MEM_PWR, VPG_GSP_MEM_LIGHT_SLEEP_DIS, 0, VPG_GSP_LIGHT_SLEEP_FORCE, 1);
+}
+
+void vpg31_poweron(struct vpg *vpg)
+{
+	struct dcn31_vpg *vpg31 = DCN31_VPG_FROM_VPG(vpg);
+
+	if (vpg->ctx->dc->debug.enable_mem_low_power.bits.vpg == false)
+		return;
+
+	REG_UPDATE_2(VPG_MEM_PWR, VPG_GSP_MEM_LIGHT_SLEEP_DIS, 1, VPG_GSP_LIGHT_SLEEP_FORCE, 0);
+}
+
+void vpg31_construct(struct dcn31_vpg *vpg31,
+	struct dc_context *ctx,
+	uint32_t inst,
+	const struct dcn31_vpg_registers *vpg_regs,
+	const struct dcn31_vpg_shift *vpg_shift,
+	const struct dcn31_vpg_mask *vpg_mask)
+{
+	vpg31->base.ctx = ctx;
+
+	vpg31->base.inst = inst;
+	vpg31->base.funcs = &dcn31_vpg_funcs;
+
+	vpg31->regs = vpg_regs;
+	vpg31->vpg_shift = vpg_shift;
+	vpg31->vpg_mask = vpg_mask;
+}

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_vpg.h

···
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DAL_DCN31_VPG_H__
+#define __DAL_DCN31_VPG_H__
+
+
+#define DCN31_VPG_FROM_VPG(vpg)\
+	container_of(vpg, struct dcn31_vpg, base)
+
+#define VPG_DCN31_REG_LIST(id) \
+	SRI(VPG_GENERIC_STATUS, VPG, id), \
+	SRI(VPG_GENERIC_PACKET_ACCESS_CTRL, VPG, id), \
+	SRI(VPG_GENERIC_PACKET_DATA, VPG, id), \
+	SRI(VPG_GSP_FRAME_UPDATE_CTRL, VPG, id), \
+	SRI(VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG, id), \
+	SRI(VPG_MEM_PWR, VPG, id)
+
+struct dcn31_vpg_registers {
+	uint32_t VPG_GENERIC_STATUS;
+	uint32_t VPG_GENERIC_PACKET_ACCESS_CTRL;
+	uint32_t VPG_GENERIC_PACKET_DATA;
+	uint32_t VPG_GSP_FRAME_UPDATE_CTRL;
+	uint32_t VPG_GSP_IMMEDIATE_UPDATE_CTRL;
+	uint32_t VPG_MEM_PWR;
+};
+
+#define DCN31_VPG_MASK_SH_LIST(mask_sh)\
+	SE_SF(VPG0_VPG_GENERIC_STATUS, VPG_GENERIC_CONFLICT_OCCURED, mask_sh),\
+	SE_SF(VPG0_VPG_GENERIC_STATUS, VPG_GENERIC_CONFLICT_CLR, mask_sh),\
+	SE_SF(VPG0_VPG_GENERIC_PACKET_ACCESS_CTRL, VPG_GENERIC_DATA_INDEX, mask_sh),\
+	SE_SF(VPG0_VPG_GENERIC_PACKET_DATA, VPG_GENERIC_DATA_BYTE0, mask_sh),\
+	SE_SF(VPG0_VPG_GENERIC_PACKET_DATA, VPG_GENERIC_DATA_BYTE1, mask_sh),\
+	SE_SF(VPG0_VPG_GENERIC_PACKET_DATA, VPG_GENERIC_DATA_BYTE2, mask_sh),\
+	SE_SF(VPG0_VPG_GENERIC_PACKET_DATA, VPG_GENERIC_DATA_BYTE3, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC0_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC1_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC2_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC3_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC4_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC5_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC6_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC7_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC8_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC9_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC10_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC11_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC12_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC13_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_FRAME_UPDATE_CTRL, VPG_GENERIC14_FRAME_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC0_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC1_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC2_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC3_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC4_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC5_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC6_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC7_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC8_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC9_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC10_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC11_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC12_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC13_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_GSP_IMMEDIATE_UPDATE_CTRL, VPG_GENERIC14_IMMEDIATE_UPDATE, mask_sh),\
+	SE_SF(VPG0_VPG_MEM_PWR, VPG_GSP_MEM_LIGHT_SLEEP_DIS, mask_sh),\
+	SE_SF(VPG0_VPG_MEM_PWR, VPG_GSP_LIGHT_SLEEP_FORCE, mask_sh),\
+	SE_SF(VPG0_VPG_MEM_PWR, VPG_GSP_MEM_PWR_STATE, mask_sh)
+
+#define VPG_DCN31_REG_FIELD_LIST(type) \
+	type VPG_GENERIC_CONFLICT_OCCURED;\
+	type VPG_GENERIC_CONFLICT_CLR;\
+	type VPG_GENERIC_DATA_INDEX;\
+	type VPG_GENERIC_DATA_BYTE0;\
+	type VPG_GENERIC_DATA_BYTE1;\
+	type VPG_GENERIC_DATA_BYTE2;\
+	type VPG_GENERIC_DATA_BYTE3;\
+	type VPG_GENERIC0_FRAME_UPDATE;\
+	type VPG_GENERIC1_FRAME_UPDATE;\
+	type VPG_GENERIC2_FRAME_UPDATE;\
+	type VPG_GENERIC3_FRAME_UPDATE;\
+	type VPG_GENERIC4_FRAME_UPDATE;\
+	type VPG_GENERIC5_FRAME_UPDATE;\
+	type VPG_GENERIC6_FRAME_UPDATE;\
+	type VPG_GENERIC7_FRAME_UPDATE;\
+	type VPG_GENERIC8_FRAME_UPDATE;\
+	type VPG_GENERIC9_FRAME_UPDATE;\
+	type VPG_GENERIC10_FRAME_UPDATE;\
+	type VPG_GENERIC11_FRAME_UPDATE;\
+	type VPG_GENERIC12_FRAME_UPDATE;\
+	type VPG_GENERIC13_FRAME_UPDATE;\
+	type VPG_GENERIC14_FRAME_UPDATE;\
+	type VPG_GENERIC0_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC1_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC2_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC3_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC4_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC5_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC6_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC7_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC8_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC9_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC10_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC11_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC12_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC13_IMMEDIATE_UPDATE;\
+	type VPG_GENERIC14_IMMEDIATE_UPDATE;\
+	type VPG_GSP_MEM_LIGHT_SLEEP_DIS;\
+	type VPG_GSP_LIGHT_SLEEP_FORCE;\
+	type VPG_GSP_MEM_PWR_STATE
+
+struct dcn31_vpg_shift {
+	VPG_DCN31_REG_FIELD_LIST(uint8_t);
+};
+
+struct dcn31_vpg_mask {
+	VPG_DCN31_REG_FIELD_LIST(uint32_t);
+};
+
+struct dcn31_vpg {
+	struct vpg base;
+	const struct dcn31_vpg_registers *regs;
+	const struct dcn31_vpg_shift *vpg_shift;
+	const struct dcn31_vpg_mask *vpg_mask;
+};
+
+void vpg31_poweron(
+		struct vpg *vpg);
+
+void vpg31_powerdown(
+		struct vpg *vpg);
+
+void vpg31_construct(struct dcn31_vpg *vpg31,
+	struct dc_context *ctx,
+	uint32_t inst,
+	const struct dcn31_vpg_registers *vpg_regs,
+	const struct dcn31_vpg_shift *vpg_shift,
+	const struct dcn31_vpg_mask *vpg_mask);
+
+#endif