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Message-ID: <20240327120630.2824554-1-sashal@kernel.org>
Date: Wed, 27 Mar 2024 08:06:30 -0400
From: Sasha Levin <sashal@...nel.org>
To: stable@...r.kernel.org,
george.shen@....com
Cc: Mario Limonciello <mario.limonciello@....com>,
Alex Deucher <alexander.deucher@....com>,
Martin Leung <martin.leung@....com>,
Aurabindo Pillai <aurabindo.pillai@....com>,
Daniel Wheeler <daniel.wheeler@....com>,
amd-gfx@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: FAILED: Patch "Revert "drm/amd/display: Add left edge pixel for YCbCr422/420 + ODM pipe split"" failed to apply to 6.8-stable tree
The patch below does not apply to the 6.8-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@...r.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
>From e9e1abb397e550aec86a6d9eb7c6f8ed4271d742 Mon Sep 17 00:00:00 2001
From: George Shen <george.shen@....com>
Date: Fri, 2 Feb 2024 17:45:32 -0500
Subject: [PATCH] Revert "drm/amd/display: Add left edge pixel for YCbCr422/420
+ ODM pipe split"
[Why/How]
A regression was identified with the change to add left edge pixel for
YCbCr422/420 + ODM combine cases.
This reverts commit 288c0254a0b0c9980dba9df7d5afadf27280b99c
Cc: Mario Limonciello <mario.limonciello@....com>
Cc: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org
Reviewed-by: Martin Leung <martin.leung@....com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@....com>
Signed-off-by: George Shen <george.shen@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 4 --
.../gpu/drm/amd/display/dc/core/dc_resource.c | 37 -------------------
.../amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 7 +---
.../gpu/drm/amd/display/dc/inc/core_types.h | 2 -
drivers/gpu/drm/amd/display/dc/inc/resource.h | 4 --
5 files changed, 1 insertion(+), 53 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 1d0fd69cc7bd1..4d5194293dbd5 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3098,10 +3098,6 @@ static bool update_planes_and_stream_state(struct dc *dc,
if (otg_master && otg_master->stream->test_pattern.type != DP_TEST_PATTERN_VIDEO_MODE)
resource_build_test_pattern_params(&context->res_ctx, otg_master);
-
- if (otg_master && (otg_master->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422 ||
- otg_master->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420))
- resource_build_subsampling_params(&context->res_ctx, otg_master);
}
}
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 96ea283bd1690..1b7765bc5e5ef 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -822,16 +822,6 @@ static struct rect calculate_odm_slice_in_timing_active(struct pipe_ctx *pipe_ct
stream->timing.v_border_bottom +
stream->timing.v_border_top;
- /* Recout for ODM slices after the first slice need one extra left edge pixel
- * for 3-tap chroma subsampling.
- */
- if (odm_slice_idx > 0 &&
- (pipe_ctx->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422 ||
- pipe_ctx->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420)) {
- odm_rec.x -= 1;
- odm_rec.width += 1;
- }
-
return odm_rec;
}
@@ -1448,7 +1438,6 @@ void resource_build_test_pattern_params(struct resource_context *res_ctx,
enum controller_dp_test_pattern controller_test_pattern;
enum controller_dp_color_space controller_color_space;
enum dc_color_depth color_depth = otg_master->stream->timing.display_color_depth;
- enum dc_pixel_encoding pixel_encoding = otg_master->stream->timing.pixel_encoding;
int h_active = otg_master->stream->timing.h_addressable +
otg_master->stream->timing.h_border_left +
otg_master->stream->timing.h_border_right;
@@ -1480,36 +1469,10 @@ void resource_build_test_pattern_params(struct resource_context *res_ctx,
else
params->width = last_odm_slice_width;
- /* Extra left edge pixel is required for 3-tap chroma subsampling. */
- if (i != 0 && (pixel_encoding == PIXEL_ENCODING_YCBCR422 ||
- pixel_encoding == PIXEL_ENCODING_YCBCR420)) {
- params->offset -= 1;
- params->width += 1;
- }
-
offset += odm_slice_width;
}
}
-void resource_build_subsampling_params(struct resource_context *res_ctx,
- struct pipe_ctx *otg_master)
-{
- struct pipe_ctx *opp_heads[MAX_PIPES];
- int odm_cnt = 1;
- int i;
-
- odm_cnt = resource_get_opp_heads_for_otg_master(otg_master, res_ctx, opp_heads);
-
- /* For ODM slices after the first slice, extra left edge pixel is required
- * for 3-tap chroma subsampling.
- */
- if (otg_master->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422 ||
- otg_master->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) {
- for (i = 0; i < odm_cnt; i++)
- opp_heads[i]->stream_res.left_edge_extra_pixel = (i == 0) ? false : true;
- }
-}
-
bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
{
const struct dc_plane_state *plane_state = pipe_ctx->plane_state;
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
index f15ba7335336a..c55d5155ecb9c 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
@@ -1573,8 +1573,7 @@ static void dcn20_detect_pipe_changes(struct dc_state *old_state,
* makes this assumption at the moment with how hubp reset is matched to
* same index mpcc reset.
*/
- if (old_pipe->stream_res.opp != new_pipe->stream_res.opp ||
- old_pipe->stream_res.left_edge_extra_pixel != new_pipe->stream_res.left_edge_extra_pixel)
+ if (old_pipe->stream_res.opp != new_pipe->stream_res.opp)
new_pipe->update_flags.bits.opp_changed = 1;
if (old_pipe->stream_res.tg != new_pipe->stream_res.tg)
new_pipe->update_flags.bits.tg_changed = 1;
@@ -1962,10 +1961,6 @@ static void dcn20_program_pipe(
pipe_ctx->stream_res.opp,
&pipe_ctx->stream->bit_depth_params,
&pipe_ctx->stream->clamping);
-
- pipe_ctx->stream_res.opp->funcs->opp_program_left_edge_extra_pixel(
- pipe_ctx->stream_res.opp,
- pipe_ctx->stream_res.left_edge_extra_pixel);
}
/* Set ABM pipe after other pipe configurations done */
diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
index ebb659c327e06..3a6bf77a68732 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
@@ -333,8 +333,6 @@ struct stream_resource {
uint8_t gsl_group;
struct test_pattern_params test_pattern_params;
-
- bool left_edge_extra_pixel;
};
struct plane_resource {
diff --git a/drivers/gpu/drm/amd/display/dc/inc/resource.h b/drivers/gpu/drm/amd/display/dc/inc/resource.h
index b14d52e52fa2f..77a60aa9f27bb 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/resource.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/resource.h
@@ -107,10 +107,6 @@ void resource_build_test_pattern_params(
struct resource_context *res_ctx,
struct pipe_ctx *pipe_ctx);
-void resource_build_subsampling_params(
- struct resource_context *res_ctx,
- struct pipe_ctx *pipe_ctx);
-
bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx);
enum dc_status resource_build_scaling_params_for_context(
--
2.43.0
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