diff options
| author | Dillon Varone <[email protected]> | 2024-07-23 19:54:23 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-08-06 15:11:02 +0000 |
| commit | b8dc6ca028d9a39196a3a066b9ef2d4a5eca475d (patch) | |
| tree | 972ec1788aa2c64bbd09a81912ab1e03605cf372 /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | |
| parent | drm/amd/display: Assume 32 bpp cursor in DML21 (diff) | |
| download | kernel-b8dc6ca028d9a39196a3a066b9ef2d4a5eca475d.tar.gz kernel-b8dc6ca028d9a39196a3a066b9ef2d4a5eca475d.zip | |
drm/amd/display: Force enable 3DLUT DMA check for dcn401 in DML
[WHY]
Currently TR0 (trip 0) is not properly budgeting for urgent latency in
DML2.1. This results in overly aggressive prefetch schedules that are
vulnerable to request return jitter, resulting in severe underflow at
the start of the frame.
[HOW]
Forcing 3DLUT DMA check to enable causes urgent latency to be budgeted
properly into the prefetch schedule, avoiding the vulnerability.
Reviewed-by: Alvin Lee <[email protected]>
Signed-off-by: Dillon Varone <[email protected]>
Signed-off-by: Wayne Lin <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
0 files changed, 0 insertions, 0 deletions