path: root/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0669-drm-amd-display-Move-stream-validations-into-seperat.patch

From ac64b2650d78e05a572aa7d43c12c6652b57a2f7 Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Fri, 21 Jul 2017 16:34:36 -0400
Subject: [PATCH 0669/4131] drm/amd/display: Move stream validations into
 seperate function.

Stateless streams validations (not require resource population)
moved into hook to be called directly from DM.

Call dc_validate_stream be before validate_with_context for
non Linux APIs

Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c           | 24 +++++++++
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c  | 61 +++++++++++++++-------
 drivers/gpu/drm/amd/display/dc/dc.h                |  2 +
 .../gpu/drm/amd/display/dc/dce/dce_link_encoder.c  |  7 ++-
 .../gpu/drm/amd/display/dc/dce/dce_link_encoder.h  |  2 +-
 .../drm/amd/display/dc/dce100/dce100_resource.c    | 24 ++-------
 .../drm/amd/display/dc/dce110/dce110_resource.c    | 23 ++------
 .../drm/amd/display/dc/dce112/dce112_resource.c    | 25 ++-------
 .../gpu/drm/amd/display/dc/dce80/dce80_resource.c  | 25 ++-------
 .../gpu/drm/amd/display/dc/dcn10/dcn10_resource.c  | 25 ++-------
 .../gpu/drm/amd/display/dc/inc/hw/link_encoder.h   |  2 +-
 .../amd/display/dc/virtual/virtual_link_encoder.c  |  2 +-
 12 files changed, 90 insertions(+), 132 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 7921880..9c2faf8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -664,6 +664,20 @@ static bool is_validation_required(
 	return false;
 }
 
+static bool validate_streams (
+		const struct dc *dc,
+		const struct dc_validation_set set[],
+		int set_count)
+{
+	int i;
+
+	for (i = 0; i < set_count; i++)
+		if (!dc_validate_stream(dc, set[i].stream))
+			return false;
+
+	return true;
+}
+
 struct validate_context *dc_get_validate_context(
 		const struct dc *dc,
 		const struct dc_validation_set set[],
@@ -673,6 +687,7 @@ struct validate_context *dc_get_validate_context(
 	enum dc_status result = DC_ERROR_UNEXPECTED;
 	struct validate_context *context;
 
+
 	context = dm_alloc(sizeof(struct validate_context));
 	if (context == NULL)
 		goto context_alloc_fail;
@@ -711,6 +726,9 @@ bool dc_validate_resources(
 	enum dc_status result = DC_ERROR_UNEXPECTED;
 	struct validate_context *context;
 
+	if (!validate_streams(dc, set, set_count))
+		return false;
+
 	context = dm_alloc(sizeof(struct validate_context));
 	if (context == NULL)
 		goto context_alloc_fail;
@@ -742,6 +760,9 @@ bool dc_validate_guaranteed(
 	enum dc_status result = DC_ERROR_UNEXPECTED;
 	struct validate_context *context;
 
+	if (!dc_validate_stream(dc, stream))
+		return false;
+
 	context = dm_alloc(sizeof(struct validate_context));
 	if (context == NULL)
 		goto context_alloc_fail;
@@ -1044,6 +1065,9 @@ bool dc_commit_streams(
 
 	}
 
+	if (!validate_streams(dc, set, stream_count))
+		return false;
+
 	context = dm_alloc(sizeof(struct validate_context));
 	if (context == NULL)
 		goto context_alloc_fail;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 71723fb..32a24e8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1416,23 +1416,17 @@ static int get_norm_pix_clk(const struct dc_crtc_timing *timing)
 	return normalized_pix_clk;
 }
 
-static void calculate_phy_pix_clks(struct validate_context *context)
+static void calculate_phy_pix_clks(struct core_stream *stream)
 {
-	int i;
-
-	for (i = 0; i < context->stream_count; i++) {
-		struct core_stream *stream = context->streams[i];
-
-		update_stream_signal(stream);
-
-		/* update actual pixel clock on all streams */
-		if (dc_is_hdmi_signal(stream->signal))
-			stream->phy_pix_clk = get_norm_pix_clk(
-				&stream->public.timing);
-		else
-			stream->phy_pix_clk =
-				stream->public.timing.pix_clk_khz;
-	}
+	update_stream_signal(stream);
+
+	/* update actual pixel clock on all streams */
+	if (dc_is_hdmi_signal(stream->signal))
+		stream->phy_pix_clk = get_norm_pix_clk(
+			&stream->public.timing);
+	else
+		stream->phy_pix_clk =
+			stream->public.timing.pix_clk_khz;
 }
 
 enum dc_status resource_map_pool_resources(
@@ -1443,8 +1437,6 @@ enum dc_status resource_map_pool_resources(
 	const struct resource_pool *pool = dc->res_pool;
 	int i, j;
 
-	calculate_phy_pix_clks(context);
-
 	for (i = 0; old_context && i < context->stream_count; i++) {
 		struct core_stream *stream = context->streams[i];
 
@@ -2516,3 +2508,36 @@ void resource_build_bit_depth_reduction_params(const struct core_stream *stream,
 
 	fmt_bit_depth->pixel_encoding = pixel_encoding;
 }
+
+bool dc_validate_stream(const struct dc *dc, const struct dc_stream *stream)
+{
+	struct core_dc *core_dc = DC_TO_CORE(dc);
+	struct dc_context *dc_ctx = core_dc->ctx;
+	struct core_stream *core_stream = DC_STREAM_TO_CORE(stream);
+	struct core_link *link = core_stream->sink->link;
+	struct timing_generator *tg = core_dc->res_pool->timing_generators[0];
+	enum dc_status res = DC_OK;
+
+	calculate_phy_pix_clks(core_stream);
+
+	if (!tg->funcs->validate_timing(tg, &core_stream->public.timing))
+		res = DC_FAIL_CONTROLLER_VALIDATE;
+
+	if (res == DC_OK)
+		if (!link->link_enc->funcs->validate_output_with_stream(
+						link->link_enc, core_stream))
+			res = DC_FAIL_ENC_VALIDATE;
+
+	/* TODO: validate audio ASIC caps, encoder */
+
+	if (res == DC_OK)
+		res = dc_link_validate_mode_timing(core_stream,
+		      link,
+		      &core_stream->public.timing);
+
+	if (res != DC_OK)
+		DC_ERROR("Failed validation for stream %p, err:%d, !\n",
+				stream, res);
+
+	return res == DC_OK;
+}
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 5523bb6..f250e87 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -559,6 +559,8 @@ struct dc_validation_set {
 	uint8_t surface_count;
 };
 
+bool dc_validate_stream(const struct dc *dc, const struct dc_stream *stream);
+
 /*
  * This function takes a set of resources and checks that they are cofunctional.
  *
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
index 318673d..aff0a44 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
@@ -1009,19 +1009,18 @@ bool dce110_link_encoder_construct(
 
 bool dce110_link_encoder_validate_output_with_stream(
 	struct link_encoder *enc,
-	struct pipe_ctx *pipe_ctx)
+	const struct core_stream *stream)
 {
-	struct core_stream *stream = pipe_ctx->stream;
 	struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
 	bool is_valid;
 
-	switch (pipe_ctx->stream->signal) {
+	switch (stream->signal) {
 	case SIGNAL_TYPE_DVI_SINGLE_LINK:
 	case SIGNAL_TYPE_DVI_DUAL_LINK:
 		is_valid = dce110_link_encoder_validate_dvi_output(
 			enc110,
 			stream->sink->link->connector_signal,
-			pipe_ctx->stream->signal,
+			stream->signal,
 			&stream->public.timing);
 	break;
 	case SIGNAL_TYPE_HDMI_TYPE_A:
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.h b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.h
index fd6ba7e..ded6c61 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.h
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.h
@@ -199,7 +199,7 @@ bool dce110_link_encoder_validate_wireless_output(
 
 bool dce110_link_encoder_validate_output_with_stream(
 	struct link_encoder *enc,
-	struct pipe_ctx *pipe_ctx);
+	const struct core_stream *stream);
 
 /****************** HW programming ************************/
 
diff --git a/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c b/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c
index 6938158..3d25a90 100644
--- a/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c
@@ -651,7 +651,7 @@ static void destruct(struct dce110_resource_pool *pool)
 		dal_irq_service_destroy(&pool->base.irqs);
 }
 
-static enum dc_status validate_mapped_resource(
+static enum dc_status build_mapped_resource(
 		const struct core_dc *dc,
 		struct validate_context *context,
 		struct validate_context *old_context)
@@ -661,7 +661,6 @@ static enum dc_status validate_mapped_resource(
 
 	for (i = 0; i < context->stream_count; i++) {
 		struct core_stream *stream = context->streams[i];
-		struct dc_link *link = stream->sink->link;
 
 		if (old_context && resource_is_stream_unchanged(old_context, stream))
 			continue;
@@ -673,28 +672,11 @@ static enum dc_status validate_mapped_resource(
 			if (context->res_ctx.pipe_ctx[j].stream != stream)
 				continue;
 
-			if (!pipe_ctx->tg->funcs->validate_timing(
-				pipe_ctx->tg, &stream->public.timing))
-				return DC_FAIL_CONTROLLER_VALIDATE;
-
 			status = dce110_resource_build_pipe_hw_param(pipe_ctx);
 
 			if (status != DC_OK)
 				return status;
 
-			if (!link->link_enc->funcs->validate_output_with_stream(
-				link->link_enc,
-				pipe_ctx))
-				return DC_FAIL_ENC_VALIDATE;
-
-			/* TODO: validate audio ASIC caps, encoder */
-			status = dc_link_validate_mode_timing(stream,
-							      link,
-							      &stream->public.timing);
-
-			if (status != DC_OK)
-				return status;
-
 			resource_build_info_frame(pipe_ctx);
 
 			/* do not need to validate non root pipes */
@@ -769,7 +751,7 @@ enum dc_status dce100_validate_with_context(
 	}
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, old_context);
+		result = build_mapped_resource(dc, context, old_context);
 
 	if (result == DC_OK)
 		result = resource_build_scaling_params_for_context(dc, context);
@@ -798,7 +780,7 @@ enum dc_status dce100_validate_guaranteed(
 		result = resource_map_clock_resources(dc, context, NULL);
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, NULL);
+		result = build_mapped_resource(dc, context, NULL);
 
 	if (result == DC_OK) {
 		validate_guaranteed_copy_streams(
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
index 015306a..c773351 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
@@ -771,7 +771,7 @@ static bool is_surface_pixel_format_supported(struct pipe_ctx *pipe_ctx, unsigne
 	return true;
 }
 
-static enum dc_status validate_mapped_resource(
+static enum dc_status build_mapped_resource(
 		const struct core_dc *dc,
 		struct validate_context *context,
 		struct validate_context *old_context)
@@ -781,7 +781,6 @@ static enum dc_status validate_mapped_resource(
 
 	for (i = 0; i < context->stream_count; i++) {
 		struct core_stream *stream = context->streams[i];
-		struct dc_link *link = stream->sink->link;
 
 		if (old_context && resource_is_stream_unchanged(old_context, stream))
 			continue;
@@ -797,29 +796,13 @@ static enum dc_status validate_mapped_resource(
 					dc->res_pool->underlay_pipe_index))
 				return DC_SURFACE_PIXEL_FORMAT_UNSUPPORTED;
 
-			if (!pipe_ctx->tg->funcs->validate_timing(
-				pipe_ctx->tg, &stream->public.timing))
-				return DC_FAIL_CONTROLLER_VALIDATE;
-
 			status = dce110_resource_build_pipe_hw_param(pipe_ctx);
 
 			if (status != DC_OK)
 				return status;
 
-			if (!link->link_enc->funcs->validate_output_with_stream(
-				link->link_enc,
-				pipe_ctx))
-				return DC_FAIL_ENC_VALIDATE;
-
 			/* TODO: validate audio ASIC caps, encoder */
 
-			status = dc_link_validate_mode_timing(stream,
-							      link,
-							      &stream->public.timing);
-
-			if (status != DC_OK)
-				return status;
-
 			resource_build_info_frame(pipe_ctx);
 
 			/* do not need to validate non root pipes */
@@ -976,7 +959,7 @@ enum dc_status dce110_validate_with_context(
 	}
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, old_context);
+		result = build_mapped_resource(dc, context, old_context);
 
 	if (result == DC_OK)
 		result = resource_build_scaling_params_for_context(dc, context);
@@ -1005,7 +988,7 @@ enum dc_status dce110_validate_guaranteed(
 		result = resource_map_clock_resources(dc, context, NULL);
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, NULL);
+		result = build_mapped_resource(dc, context, NULL);
 
 	if (result == DC_OK) {
 		validate_guaranteed_copy_streams(
diff --git a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
index ca1e13e..19cd999 100644
--- a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
@@ -720,7 +720,7 @@ static struct clock_source *find_matching_pll(
 	return 0;
 }
 
-static enum dc_status validate_mapped_resource(
+static enum dc_status build_mapped_resource(
 		const struct core_dc *dc,
 		struct validate_context *context,
 		struct validate_context *old_context)
@@ -730,7 +730,6 @@ static enum dc_status validate_mapped_resource(
 
 	for (i = 0; i < context->stream_count; i++) {
 		struct core_stream *stream = context->streams[i];
-		struct dc_link *link = stream->sink->link;
 
 		if (old_context && resource_is_stream_unchanged(old_context, stream))
 			continue;
@@ -742,29 +741,11 @@ static enum dc_status validate_mapped_resource(
 			if (context->res_ctx.pipe_ctx[j].stream != stream)
 				continue;
 
-			if (!pipe_ctx->tg->funcs->validate_timing(
-				pipe_ctx->tg, &stream->public.timing))
-				return DC_FAIL_CONTROLLER_VALIDATE;
-
 			status = dce110_resource_build_pipe_hw_param(pipe_ctx);
 
 			if (status != DC_OK)
 				return status;
 
-			if (!link->link_enc->funcs->validate_output_with_stream(
-				link->link_enc,
-				pipe_ctx))
-				return DC_FAIL_ENC_VALIDATE;
-
-			/* TODO: validate audio ASIC caps, encoder */
-
-			status = dc_link_validate_mode_timing(stream,
-							      link,
-							      &stream->public.timing);
-
-			if (status != DC_OK)
-				return status;
-
 			resource_build_info_frame(pipe_ctx);
 
 			/* do not need to validate non root pipes */
@@ -952,7 +933,7 @@ enum dc_status dce112_validate_with_context(
 	}
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, old_context);
+		result = build_mapped_resource(dc, context, old_context);
 
 	if (result == DC_OK)
 		result = resource_build_scaling_params_for_context(dc, context);
@@ -981,7 +962,7 @@ enum dc_status dce112_validate_guaranteed(
 		result = resource_map_phy_clock_resources(dc, context, NULL);
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, NULL);
+		result = build_mapped_resource(dc, context, NULL);
 
 	if (result == DC_OK) {
 		validate_guaranteed_copy_streams(
diff --git a/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c b/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c
index b2319db..0123006 100644
--- a/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c
@@ -667,7 +667,7 @@ static void destruct(struct dce110_resource_pool *pool)
 	}
 }
 
-static enum dc_status validate_mapped_resource(
+static enum dc_status build_mapped_resource(
 		const struct core_dc *dc,
 		struct validate_context *context,
 		struct validate_context *old_context)
@@ -677,7 +677,6 @@ static enum dc_status validate_mapped_resource(
 
 	for (i = 0; i < context->stream_count; i++) {
 		struct core_stream *stream = context->streams[i];
-		struct dc_link *link = stream->sink->link;
 
 		if (old_context && resource_is_stream_unchanged(old_context, stream))
 			continue;
@@ -689,29 +688,11 @@ static enum dc_status validate_mapped_resource(
 			if (context->res_ctx.pipe_ctx[j].stream != stream)
 				continue;
 
-			if (!pipe_ctx->tg->funcs->validate_timing(
-				pipe_ctx->tg, &stream->public.timing))
-				return DC_FAIL_CONTROLLER_VALIDATE;
-
 			status = dce110_resource_build_pipe_hw_param(pipe_ctx);
 
 			if (status != DC_OK)
 				return status;
 
-			if (!link->link_enc->funcs->validate_output_with_stream(
-				link->link_enc,
-				pipe_ctx))
-				return DC_FAIL_ENC_VALIDATE;
-
-			/* TODO: validate audio ASIC caps, encoder */
-
-			status = dc_link_validate_mode_timing(stream,
-							      link,
-							      &stream->public.timing);
-
-			if (status != DC_OK)
-				return status;
-
 			resource_build_info_frame(pipe_ctx);
 
 			/* do not need to validate non root pipes */
@@ -786,7 +767,7 @@ enum dc_status dce80_validate_with_context(
 	}
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, old_context);
+		result = build_mapped_resource(dc, context, old_context);
 
 	if (result == DC_OK)
 		result = resource_build_scaling_params_for_context(dc, context);
@@ -814,7 +795,7 @@ enum dc_status dce80_validate_guaranteed(
 		result = resource_map_clock_resources(dc, context, NULL);
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, NULL);
+		result = build_mapped_resource(dc, context, NULL);
 
 	if (result == DC_OK) {
 		validate_guaranteed_copy_streams(
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
index 0110a43..b901ef9 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -835,7 +835,7 @@ static enum dc_status build_pipe_hw_param(struct pipe_ctx *pipe_ctx)
 	return DC_OK;
 }
 
-static enum dc_status validate_mapped_resource(
+static enum dc_status build_mapped_resource(
 		const struct core_dc *dc,
 		struct validate_context *context,
 		struct validate_context *old_context)
@@ -845,7 +845,6 @@ static enum dc_status validate_mapped_resource(
 
 	for (i = 0; i < context->stream_count; i++) {
 		struct core_stream *stream = context->streams[i];
-		struct dc_link *link = stream->sink->link;
 
 		if (old_context && resource_is_stream_unchanged(old_context, stream)) {
 			if (stream != NULL && old_context->streams[i] != NULL) {
@@ -870,29 +869,11 @@ static enum dc_status validate_mapped_resource(
 			if (context->res_ctx.pipe_ctx[j].stream != stream)
 				continue;
 
-
-			if (!pipe_ctx->tg->funcs->validate_timing(
-					pipe_ctx->tg, &stream->public.timing))
-				return DC_FAIL_CONTROLLER_VALIDATE;
-
 			status = build_pipe_hw_param(pipe_ctx);
 
 			if (status != DC_OK)
 				return status;
 
-			if (!link->link_enc->funcs->validate_output_with_stream(
-				link->link_enc, pipe_ctx))
-				return DC_FAIL_ENC_VALIDATE;
-
-			/* TODO: validate audio ASIC caps, encoder */
-
-			status = dc_link_validate_mode_timing(
-				stream, link, &stream->public.timing);
-
-			if (status != DC_OK)
-				return status;
-
-
 			/* do not need to validate non root pipes */
 			break;
 		}
@@ -928,7 +909,7 @@ enum dc_status dcn10_validate_with_context(
 	if (result != DC_OK)
 		return result;
 
-	result = validate_mapped_resource(dc, context, old_context);
+	result = build_mapped_resource(dc, context, old_context);
 	if (result != DC_OK)
 		return result;
 
@@ -963,7 +944,7 @@ enum dc_status dcn10_validate_guaranteed(
 		result = resource_map_phy_clock_resources(dc, context, NULL);
 
 	if (result == DC_OK)
-		result = validate_mapped_resource(dc, context, NULL);
+		result = build_mapped_resource(dc, context, NULL);
 
 	if (result == DC_OK) {
 		validate_guaranteed_copy_streams(
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h b/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h
index d330d38..0ee7387 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h
@@ -94,7 +94,7 @@ struct link_encoder {
 
 struct link_encoder_funcs {
 	bool (*validate_output_with_stream)(
-		struct link_encoder *enc, struct pipe_ctx *pipe_ctx);
+		struct link_encoder *enc, const struct core_stream *stream);
 	void (*hw_init)(struct link_encoder *enc);
 	void (*setup)(struct link_encoder *enc,
 		enum signal_type signal);
diff --git a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_encoder.c b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_encoder.c
index 12df499..d312874 100644
--- a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_encoder.c
@@ -30,7 +30,7 @@
 
 static bool virtual_link_encoder_validate_output_with_stream(
 	struct link_encoder *enc,
-	struct pipe_ctx *pipe_ctx) { return true; }
+	const struct core_stream *stream) { return true; }
 
 static void virtual_link_encoder_hw_init(struct link_encoder *enc) {}
 
-- 
2.7.4