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From: Jasdeep Dhillon <jdhillon@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: stylon.wang@amd.com,
	Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>,
	Sunpeng.Li@amd.com, Harry.Wentland@amd.com,
	qingqing.zhuo@amd.com, Jasdeep Dhillon <jdhillon@amd.com>,
	Rodrigo.Siqueira@amd.com, roman.li@amd.com, solomon.chiu@amd.com,
	Aurabindo.Pillai@amd.com, wayne.lin@amd.com,
	Bhawanpreet.Lakha@amd.com,
	Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>,
	agustin.gutierrez@amd.com, pavle.kotarac@amd.com
Subject: [PATCH 2/8] drm/amd/display: Pass the new context into disable OTG WA
Date: Tue, 24 May 2022 13:57:18 -0400	[thread overview]
Message-ID: <20220524175724.126380-3-jdhillon@amd.com> (raw)
In-Reply-To: <20220524175724.126380-1-jdhillon@amd.com>

From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

[Why]
When enabling an HPO stream for the first time after having previously
enabled a DIO stream there may be lingering DIO FIFO errors even though
the DIO is no longer enabled.

These can cause display clock change to hang if we don't apply the
OTG disable workaround since the ramping logic is tied to OTG on.

[How]
The workaround wasn't being applied in the sequence of:

1 DIO stream
0 streams
1 HPO stream

because current_state has no stream or planes in its context - and
it's only swapped after optimize has finished.

We should be using the incoming context instead to determine whether
this logic is needed or not.

Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
---
 .../gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c  | 8 ++++----
 .../drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c    | 8 ++++----
 .../drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c    | 8 ++++----
 drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h              | 2 +-
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
index 051322580014..7310482b2784 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
@@ -99,13 +99,13 @@ static int dcn31_get_active_display_cnt_wa(
 	return display_count;
 }
 
-static void dcn31_disable_otg_wa(struct clk_mgr *clk_mgr_base, bool disable)
+static void dcn31_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *context, bool disable)
 {
 	struct dc *dc = clk_mgr_base->ctx->dc;
 	int i;
 
 	for (i = 0; i < dc->res_pool->pipe_count; ++i) {
-		struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
 
 		if (pipe->top_pipe || pipe->prev_odm_pipe)
 			continue;
@@ -211,11 +211,11 @@ void dcn31_update_clocks(struct clk_mgr *clk_mgr_base,
 	}
 
 	if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) {
-		dcn31_disable_otg_wa(clk_mgr_base, true);
+		dcn31_disable_otg_wa(clk_mgr_base, context, true);
 
 		clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz;
 		dcn31_smu_set_dispclk(clk_mgr, clk_mgr_base->clks.dispclk_khz);
-		dcn31_disable_otg_wa(clk_mgr_base, false);
+		dcn31_disable_otg_wa(clk_mgr_base, context, false);
 
 		update_dispclk = true;
 	}
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
index 29a3bf57b157..a50e1e519dff 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
@@ -81,13 +81,13 @@ static int dcn315_get_active_display_cnt_wa(
 	return display_count;
 }
 
-static void dcn315_disable_otg_wa(struct clk_mgr *clk_mgr_base, bool disable)
+static void dcn315_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *context, bool disable)
 {
 	struct dc *dc = clk_mgr_base->ctx->dc;
 	int i;
 
 	for (i = 0; i < dc->res_pool->pipe_count; ++i) {
-		struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
 
 		if (pipe->top_pipe || pipe->prev_odm_pipe)
 			continue;
@@ -175,11 +175,11 @@ static void dcn315_update_clocks(struct clk_mgr *clk_mgr_base,
 	}
 
 	if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) {
-		dcn315_disable_otg_wa(clk_mgr_base, true);
+		dcn315_disable_otg_wa(clk_mgr_base, context, true);
 
 		clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz;
 		dcn315_smu_set_dispclk(clk_mgr, clk_mgr_base->clks.dispclk_khz);
-		dcn315_disable_otg_wa(clk_mgr_base, false);
+		dcn315_disable_otg_wa(clk_mgr_base, context, false);
 
 		update_dispclk = true;
 	}
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
index ab0f772ae25d..4423f41b40de 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
@@ -112,13 +112,13 @@ static int dcn316_get_active_display_cnt_wa(
 	return display_count;
 }
 
-static void dcn316_disable_otg_wa(struct clk_mgr *clk_mgr_base, bool disable)
+static void dcn316_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *context, bool disable)
 {
 	struct dc *dc = clk_mgr_base->ctx->dc;
 	int i;
 
 	for (i = 0; i < dc->res_pool->pipe_count; ++i) {
-		struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
 
 		if (pipe->top_pipe || pipe->prev_odm_pipe)
 			continue;
@@ -221,11 +221,11 @@ static void dcn316_update_clocks(struct clk_mgr *clk_mgr_base,
 	}
 
 	if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) {
-		dcn316_disable_otg_wa(clk_mgr_base, true);
+		dcn316_disable_otg_wa(clk_mgr_base, context, true);
 
 		clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz;
 		dcn316_smu_set_dispclk(clk_mgr, clk_mgr_base->clks.dispclk_khz);
-		dcn316_disable_otg_wa(clk_mgr_base, false);
+		dcn316_disable_otg_wa(clk_mgr_base, context, false);
 
 		update_dispclk = true;
 	}
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h
index cc358a5ba537..4c880b64f8ca 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h
@@ -120,7 +120,7 @@ struct dccg_funcs {
 
 	void (*set_dtbclk_dto)(
 			struct dccg *dccg,
-			const struct dtbclk_dto_params *params);
+			struct dtbclk_dto_params *dto_params);
 
 	void (*set_audio_dtbclk_dto)(
 			struct dccg *dccg,
-- 
2.25.1


  parent reply	other threads:[~2022-05-24 17:57 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-24 17:57 [PATCH 0/8] May 24, 2022 Jasdeep Dhillon
2022-05-24 17:57 ` [PATCH 1/8] drm/amd/display: revert Blank eDP on disable/enable drv Jasdeep Dhillon
2022-05-24 17:57 ` Jasdeep Dhillon [this message]
2022-05-24 17:57 ` [PATCH 3/8] drm/amd/display: Wait DMCUB to idle state before reset Jasdeep Dhillon
2022-05-24 17:57 ` [PATCH 4/8] drm/amd/display: Fix DMUB outbox trace in S4 (#4465) Jasdeep Dhillon
2022-05-24 17:57 ` [PATCH 5/8] drm/amd/display: Don't clear ref_dtbclk value Jasdeep Dhillon
2022-05-24 17:57 ` [PATCH 6/8] Prepare for new interfaces Jasdeep Dhillon
2022-05-24 17:57 ` [PATCH 7/8] drm/amd/display: Fix possible infinite loop in DP LT fallback Jasdeep Dhillon
2022-05-24 17:57 ` [PATCH 8/8] drm/amd/display: 3.2.187 Jasdeep Dhillon

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