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Revert "drm/amd/display: Fix green screen issue after suspend"

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This reverts commit 87b7ebc2e1.

A long time ago, we had an issue with the Raven system when it was
connected to two displays: one with DP and another with HDMI. After the
system woke up from suspension, we saw a solid green screen caused by an
underflow generated by bad DCC metadata. To workaround this issue, the
'commit 87b7ebc2e1 ("drm/amd/display: Fix green screen issue after
suspend")' was introduced to disable the DCC for a few frames after in
the resume phase. However, in hindsight, this solution was probably a
workaround at the kernel level for some issues from another part
(probably other driver components or user space). After applying this
patch and trying to reproduce the green issue in a similar hardware
system but using the latest kernel and userspace, we cannot see the
issue, which makes this workaround obsolete and creates extra
unnecessary complexity to the code; for all of this reason, this commit
reverts the original change.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rodrigo Siqueira
2024-11-14 15:32:52 -07:00
committed by Alex Deucher
parent 1b0cbcf888
commit 04d6273fae
3 changed files with 13 additions and 24 deletions
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12
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -5524,8 +5524,7 @@ fill_dc_plane_info_and_addr(struct amdgpu_device *adev,
const u64 tiling_flags,
struct dc_plane_info *plane_info,
struct dc_plane_address *address,
bool tmz_surface,
bool force_disable_dcc)
bool tmz_surface)
{
const struct drm_framebuffer *fb = plane_state->fb;
const struct amdgpu_framebuffer *afb =
@@ -5624,7 +5623,7 @@ fill_dc_plane_info_and_addr(struct amdgpu_device *adev,
&plane_info->tiling_info,
&plane_info->plane_size,
&plane_info->dcc, address,
tmz_surface, force_disable_dcc);
tmz_surface);
if (ret)
return ret;
@@ -5645,7 +5644,6 @@ static int fill_dc_plane_attributes(struct amdgpu_device *adev,
struct dc_scaling_info scaling_info;
struct dc_plane_info plane_info;
int ret;
bool force_disable_dcc = false;
ret = amdgpu_dm_plane_fill_dc_scaling_info(adev, plane_state, &scaling_info);
if (ret)
@@ -5656,13 +5654,11 @@ static int fill_dc_plane_attributes(struct amdgpu_device *adev,
dc_plane_state->clip_rect = scaling_info.clip_rect;
dc_plane_state->scaling_quality = scaling_info.scaling_quality;
force_disable_dcc = adev->asic_type == CHIP_RAVEN && adev->in_suspend;
ret = fill_dc_plane_info_and_addr(adev, plane_state,
afb->tiling_flags,
&plane_info,
&dc_plane_state->address,
afb->tmz_surface,
force_disable_dcc);
afb->tmz_surface);
if (ret)
return ret;
@@ -9099,7 +9095,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
afb->tiling_flags,
&bundle->plane_infos[planes_count],
&bundle->flip_addrs[planes_count].address,
afb->tmz_surface, false);
afb->tmz_surface);
drm_dbg_state(state->dev, "plane: id=%d dcc_en=%d\n",
new_plane_state->plane->index,