path: root/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/4542-drm-amd-display-Refactor-audio-programming.patch

From 5a2e7ffaa966e64a7c1c07813010ac71b992ee86 Mon Sep 17 00:00:00 2001
From: Anthony Koo <Anthony.Koo@amd.com>
Date: Thu, 10 May 2018 14:21:47 -0400
Subject: [PATCH 4542/5725] drm/amd/display: Refactor audio programming

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c      |  24 +-
 .../amd/display/dc/dce110/dce110_hw_sequencer.c    | 256 ++++++++++++---------
 .../amd/display/dc/dce110/dce110_hw_sequencer.h    |   4 +
 .../drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c  |  16 +-
 drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h  |   5 +
 5 files changed, 163 insertions(+), 142 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 2fa5218..a9485c1 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1861,28 +1861,6 @@ static enum dc_status enable_link(
 		break;
 	}
 
-	if (pipe_ctx->stream_res.audio && status == DC_OK) {
-		struct dc *core_dc = pipe_ctx->stream->ctx->dc;
-		/* notify audio driver for audio modes of monitor */
-		struct pp_smu_funcs_rv *pp_smu = core_dc->res_pool->pp_smu;
-		unsigned int i, num_audio = 1;
-		for (i = 0; i < MAX_PIPES; i++) {
-			/*current_state not updated yet*/
-			if (core_dc->current_state->res_ctx.pipe_ctx[i].stream_res.audio != NULL)
-				num_audio++;
-		}
-
-		pipe_ctx->stream_res.audio->funcs->az_enable(pipe_ctx->stream_res.audio);
-
-		if (num_audio == 1 && pp_smu != NULL && pp_smu->set_pme_wa_enable != NULL)
-			/*this is the first audio. apply the PME w/a in order to wake AZ from D3*/
-			pp_smu->set_pme_wa_enable(&pp_smu->pp_smu);
-		/* un-mute audio */
-		/* TODO: audio should be per stream rather than per link */
-		pipe_ctx->stream_res.stream_enc->funcs->audio_mute_control(
-			pipe_ctx->stream_res.stream_enc, false);
-	}
-
 	return status;
 }
 
@@ -2415,6 +2393,8 @@ void core_link_enable_stream(
 			}
 	}
 
+	core_dc->hwss.enable_audio_stream(pipe_ctx);
+
 	/* turn off otg test pattern if enable */
 	pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg,
 			CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 6b22a53..0544568 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -972,19 +972,35 @@ void hwss_edp_backlight_control(
 		edp_receiver_ready_T9(link);
 }
 
-void dce110_disable_stream(struct pipe_ctx *pipe_ctx, int option)
+void dce110_enable_audio_stream(struct pipe_ctx *pipe_ctx)
 {
-	struct dc_stream_state *stream = pipe_ctx->stream;
-	struct dc_link *link = stream->sink->link;
-	struct dc *dc = pipe_ctx->stream->ctx->dc;
+	struct dc *core_dc = pipe_ctx->stream->ctx->dc;
+	/* notify audio driver for audio modes of monitor */
+	struct pp_smu_funcs_rv *pp_smu = core_dc->res_pool->pp_smu;
+	unsigned int i, num_audio = 1;
 
-	if (dc_is_hdmi_signal(pipe_ctx->stream->signal))
-		pipe_ctx->stream_res.stream_enc->funcs->stop_hdmi_info_packets(
-			pipe_ctx->stream_res.stream_enc);
+	if (pipe_ctx->stream_res.audio) {
+		for (i = 0; i < MAX_PIPES; i++) {
+			/*current_state not updated yet*/
+			if (core_dc->current_state->res_ctx.pipe_ctx[i].stream_res.audio != NULL)
+				num_audio++;
+		}
 
-	if (dc_is_dp_signal(pipe_ctx->stream->signal))
-		pipe_ctx->stream_res.stream_enc->funcs->stop_dp_info_packets(
-			pipe_ctx->stream_res.stream_enc);
+		pipe_ctx->stream_res.audio->funcs->az_enable(pipe_ctx->stream_res.audio);
+
+		if (num_audio == 1 && pp_smu != NULL && pp_smu->set_pme_wa_enable != NULL)
+			/*this is the first audio. apply the PME w/a in order to wake AZ from D3*/
+			pp_smu->set_pme_wa_enable(&pp_smu->pp_smu);
+		/* un-mute audio */
+		/* TODO: audio should be per stream rather than per link */
+		pipe_ctx->stream_res.stream_enc->funcs->audio_mute_control(
+			pipe_ctx->stream_res.stream_enc, false);
+	}
+}
+
+void dce110_disable_audio_stream(struct pipe_ctx *pipe_ctx, int option)
+{
+	struct dc *dc = pipe_ctx->stream->ctx->dc;
 
 	pipe_ctx->stream_res.stream_enc->funcs->audio_mute_control(
 			pipe_ctx->stream_res.stream_enc, true);
@@ -1015,7 +1031,23 @@ void dce110_disable_stream(struct pipe_ctx *pipe_ctx, int option)
 		 * stream->stream_engine_id);
 		 */
 	}
+}
 
+void dce110_disable_stream(struct pipe_ctx *pipe_ctx, int option)
+{
+	struct dc_stream_state *stream = pipe_ctx->stream;
+	struct dc_link *link = stream->sink->link;
+	struct dc *dc = pipe_ctx->stream->ctx->dc;
+
+	if (dc_is_hdmi_signal(pipe_ctx->stream->signal))
+		pipe_ctx->stream_res.stream_enc->funcs->stop_hdmi_info_packets(
+			pipe_ctx->stream_res.stream_enc);
+
+	if (dc_is_dp_signal(pipe_ctx->stream->signal))
+		pipe_ctx->stream_res.stream_enc->funcs->stop_dp_info_packets(
+			pipe_ctx->stream_res.stream_enc);
+
+	dc->hwss.disable_audio_stream(pipe_ctx, option);
 
 	link->link_enc->funcs->connect_dig_be_to_fe(
 			link->link_enc,
@@ -1308,6 +1340,30 @@ static enum dc_status apply_single_controller_ctx_to_hw(
 	struct pipe_ctx *pipe_ctx_old = &dc->current_state->res_ctx.
 			pipe_ctx[pipe_ctx->pipe_idx];
 
+	if (pipe_ctx->stream_res.audio != NULL) {
+		struct audio_output audio_output;
+
+		build_audio_output(context, pipe_ctx, &audio_output);
+
+		if (dc_is_dp_signal(pipe_ctx->stream->signal))
+			pipe_ctx->stream_res.stream_enc->funcs->dp_audio_setup(
+					pipe_ctx->stream_res.stream_enc,
+					pipe_ctx->stream_res.audio->inst,
+					&pipe_ctx->stream->audio_info);
+		else
+			pipe_ctx->stream_res.stream_enc->funcs->hdmi_audio_setup(
+					pipe_ctx->stream_res.stream_enc,
+					pipe_ctx->stream_res.audio->inst,
+					&pipe_ctx->stream->audio_info,
+					&audio_output.crtc_info);
+
+		pipe_ctx->stream_res.audio->funcs->az_configure(
+				pipe_ctx->stream_res.audio,
+				pipe_ctx->stream->signal,
+				&audio_output.crtc_info,
+				&pipe_ctx->stream->audio_info);
+	}
+
 	/*  */
 	dc->hwss.enable_stream_timing(pipe_ctx, context, dc);
 
@@ -1966,6 +2022,86 @@ static void dce110_reset_hw_ctx_wrap(
 	}
 }
 
+static void dce110_setup_audio_dto(
+		struct dc *dc,
+		struct dc_state *context)
+{
+	int i;
+
+	/* program audio wall clock. use HDMI as clock source if HDMI
+	 * audio active. Otherwise, use DP as clock source
+	 * first, loop to find any HDMI audio, if not, loop find DP audio
+	 */
+	/* Setup audio rate clock source */
+	/* Issue:
+	* Audio lag happened on DP monitor when unplug a HDMI monitor
+	*
+	* Cause:
+	* In case of DP and HDMI connected or HDMI only, DCCG_AUDIO_DTO_SEL
+	* is set to either dto0 or dto1, audio should work fine.
+	* In case of DP connected only, DCCG_AUDIO_DTO_SEL should be dto1,
+	* set to dto0 will cause audio lag.
+	*
+	* Solution:
+	* Not optimized audio wall dto setup. When mode set, iterate pipe_ctx,
+	* find first available pipe with audio, setup audio wall DTO per topology
+	* instead of per pipe.
+	*/
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+		if (pipe_ctx->stream == NULL)
+			continue;
+
+		if (pipe_ctx->top_pipe)
+			continue;
+
+		if (pipe_ctx->stream->signal != SIGNAL_TYPE_HDMI_TYPE_A)
+			continue;
+
+		if (pipe_ctx->stream_res.audio != NULL) {
+			struct audio_output audio_output;
+
+			build_audio_output(context, pipe_ctx, &audio_output);
+
+			pipe_ctx->stream_res.audio->funcs->wall_dto_setup(
+				pipe_ctx->stream_res.audio,
+				pipe_ctx->stream->signal,
+				&audio_output.crtc_info,
+				&audio_output.pll_info);
+			break;
+		}
+	}
+
+	/* no HDMI audio is found, try DP audio */
+	if (i == dc->res_pool->pipe_count) {
+		for (i = 0; i < dc->res_pool->pipe_count; i++) {
+			struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+			if (pipe_ctx->stream == NULL)
+				continue;
+
+			if (pipe_ctx->top_pipe)
+				continue;
+
+			if (!dc_is_dp_signal(pipe_ctx->stream->signal))
+				continue;
+
+			if (pipe_ctx->stream_res.audio != NULL) {
+				struct audio_output audio_output;
+
+				build_audio_output(context, pipe_ctx, &audio_output);
+
+				pipe_ctx->stream_res.audio->funcs->wall_dto_setup(
+					pipe_ctx->stream_res.audio,
+					pipe_ctx->stream->signal,
+					&audio_output.crtc_info,
+					&audio_output.pll_info);
+				break;
+			}
+		}
+	}
+}
 
 enum dc_status dce110_apply_ctx_to_hw(
 		struct dc *dc,
@@ -2057,79 +2193,8 @@ enum dc_status dce110_apply_ctx_to_hw(
 				dc->res_pool->display_clock,
 				context->bw.dce.dispclk_khz * 115 / 100);
 	}
-	/* program audio wall clock. use HDMI as clock source if HDMI
-	 * audio active. Otherwise, use DP as clock source
-	 * first, loop to find any HDMI audio, if not, loop find DP audio
-	 */
-	/* Setup audio rate clock source */
-	/* Issue:
-	* Audio lag happened on DP monitor when unplug a HDMI monitor
-	*
-	* Cause:
-	* In case of DP and HDMI connected or HDMI only, DCCG_AUDIO_DTO_SEL
-	* is set to either dto0 or dto1, audio should work fine.
-	* In case of DP connected only, DCCG_AUDIO_DTO_SEL should be dto1,
-	* set to dto0 will cause audio lag.
-	*
-	* Solution:
-	* Not optimized audio wall dto setup. When mode set, iterate pipe_ctx,
-	* find first available pipe with audio, setup audio wall DTO per topology
-	* instead of per pipe.
-	*/
-	for (i = 0; i < dc->res_pool->pipe_count; i++) {
-		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
-
-		if (pipe_ctx->stream == NULL)
-			continue;
-
-		if (pipe_ctx->top_pipe)
-			continue;
-
-		if (pipe_ctx->stream->signal != SIGNAL_TYPE_HDMI_TYPE_A)
-			continue;
-
-		if (pipe_ctx->stream_res.audio != NULL) {
-			struct audio_output audio_output;
-
-			build_audio_output(context, pipe_ctx, &audio_output);
-
-			pipe_ctx->stream_res.audio->funcs->wall_dto_setup(
-				pipe_ctx->stream_res.audio,
-				pipe_ctx->stream->signal,
-				&audio_output.crtc_info,
-				&audio_output.pll_info);
-			break;
-		}
-	}
-
-	/* no HDMI audio is found, try DP audio */
-	if (i == dc->res_pool->pipe_count) {
-		for (i = 0; i < dc->res_pool->pipe_count; i++) {
-			struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
-
-			if (pipe_ctx->stream == NULL)
-				continue;
-
-			if (pipe_ctx->top_pipe)
-				continue;
-
-			if (!dc_is_dp_signal(pipe_ctx->stream->signal))
-				continue;
-
-			if (pipe_ctx->stream_res.audio != NULL) {
-				struct audio_output audio_output;
-
-				build_audio_output(context, pipe_ctx, &audio_output);
 
-				pipe_ctx->stream_res.audio->funcs->wall_dto_setup(
-					pipe_ctx->stream_res.audio,
-					pipe_ctx->stream->signal,
-					&audio_output.crtc_info,
-					&audio_output.pll_info);
-				break;
-			}
-		}
-	}
+	dce110_setup_audio_dto(dc, context);
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
 		struct pipe_ctx *pipe_ctx_old =
@@ -2148,31 +2213,6 @@ enum dc_status dce110_apply_ctx_to_hw(
 		if (pipe_ctx->top_pipe)
 			continue;
 
-		if (context->res_ctx.pipe_ctx[i].stream_res.audio != NULL) {
-
-			struct audio_output audio_output;
-
-			build_audio_output(context, pipe_ctx, &audio_output);
-
-			if (dc_is_dp_signal(pipe_ctx->stream->signal))
-				pipe_ctx->stream_res.stream_enc->funcs->dp_audio_setup(
-						pipe_ctx->stream_res.stream_enc,
-						pipe_ctx->stream_res.audio->inst,
-						&pipe_ctx->stream->audio_info);
-			else
-				pipe_ctx->stream_res.stream_enc->funcs->hdmi_audio_setup(
-						pipe_ctx->stream_res.stream_enc,
-						pipe_ctx->stream_res.audio->inst,
-						&pipe_ctx->stream->audio_info,
-						&audio_output.crtc_info);
-
-			pipe_ctx->stream_res.audio->funcs->az_configure(
-					pipe_ctx->stream_res.audio,
-					pipe_ctx->stream->signal,
-					&audio_output.crtc_info,
-					&pipe_ctx->stream->audio_info);
-		}
-
 		status = apply_single_controller_ctx_to_hw(
 				pipe_ctx,
 				context,
@@ -2985,6 +3025,8 @@ static const struct hw_sequencer_funcs dce110_funcs = {
 	.disable_stream = dce110_disable_stream,
 	.unblank_stream = dce110_unblank_stream,
 	.blank_stream = dce110_blank_stream,
+	.enable_audio_stream = dce110_enable_audio_stream,
+	.disable_audio_stream = dce110_disable_audio_stream,
 	.enable_display_pipe_clock_gating = enable_display_pipe_clock_gating,
 	.enable_display_power_gating = dce110_enable_display_power_gating,
 	.disable_plane = dce110_power_down_fe,
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h
index 5d7e9f5..f48d5a6 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h
@@ -49,6 +49,10 @@ void dce110_unblank_stream(struct pipe_ctx *pipe_ctx,
 		struct dc_link_settings *link_settings);
 
 void dce110_blank_stream(struct pipe_ctx *pipe_ctx);
+
+void dce110_enable_audio_stream(struct pipe_ctx *pipe_ctx);
+void dce110_disable_audio_stream(struct pipe_ctx *pipe_ctx, int option);
+
 void dce110_update_info_frame(struct pipe_ctx *pipe_ctx);
 
 void dce110_set_avmute(struct pipe_ctx *pipe_ctx, bool enable);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index b7ff538..72d0b6f6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -734,19 +734,7 @@ static void reset_back_end_for_pipe(
 		if (!pipe_ctx->stream->dpms_off)
 			core_link_disable_stream(pipe_ctx, FREE_ACQUIRED_RESOURCE);
 		else if (pipe_ctx->stream_res.audio) {
-			/*
-			 * if stream is already disabled outside of commit streams path,
-			 * audio disable was skipped. Need to do it here
-			 */
-			pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
-
-			if (dc->caps.dynamic_audio == true) {
-				/*we have to dynamic arbitrate the audio endpoints*/
-				pipe_ctx->stream_res.audio = NULL;
-				/*we free the resource, need reset is_audio_acquired*/
-				update_audio_usage(&dc->current_state->res_ctx, dc->res_pool, pipe_ctx->stream_res.audio, false);
-			}
-
+			dc->hwss.disable_audio_stream(pipe_ctx, FREE_ACQUIRED_RESOURCE);
 		}
 
 	}
@@ -2801,6 +2789,8 @@ static const struct hw_sequencer_funcs dcn10_funcs = {
 	.disable_stream = dce110_disable_stream,
 	.unblank_stream = dce110_unblank_stream,
 	.blank_stream = dce110_blank_stream,
+	.enable_audio_stream = dce110_enable_audio_stream,
+	.disable_audio_stream = dce110_disable_audio_stream,
 	.enable_display_power_gating = dcn10_dummy_display_power_gating,
 	.disable_plane = dcn10_disable_plane,
 	.blank_pixel_data = dcn10_blank_pixel_data,
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
index 52db80f..a71770e 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -154,6 +154,11 @@ struct hw_sequencer_funcs {
 			struct dc_link_settings *link_settings);
 
 	void (*blank_stream)(struct pipe_ctx *pipe_ctx);
+
+	void (*enable_audio_stream)(struct pipe_ctx *pipe_ctx);
+
+	void (*disable_audio_stream)(struct pipe_ctx *pipe_ctx, int option);
+
 	void (*pipe_control_lock)(
 				struct dc *dc,
 				struct pipe_ctx *pipe,
-- 
2.7.4