diff options
| author | Mario Limonciello <mario.limonciello@amd.com> | 2025-01-21 16:03:52 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-04-21 11:27:29 -0400 |
| commit | 7e40f64896e8e3dca471e287672db5ace12ea0be (patch) | |
| tree | 8237a09a8bccfe57ac1a86acc13c8ed43deefc32 | |
| parent | 724a4b400bfcce27b155863fc36fe7bef58f768e (diff) | |
drm/amd/display: Avoid divide by zero by initializing dummy pitch to 1
[Why]
If the dummy values in `populate_dummy_dml_surface_cfg()` aren't updated
then they can lead to a divide by zero in downstream callers like
CalculateVMAndRowBytes()
[How]
Initialize dummy value to a value to avoid divide by zero.
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c index 2061d43b92e1..857ce1695fd5 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c @@ -896,7 +896,7 @@ static void populate_dummy_dml_surface_cfg(struct dml_surface_cfg_st *out, unsig out->SurfaceWidthC[location] = in->timing.h_addressable; out->SurfaceHeightC[location] = in->timing.v_addressable; out->PitchY[location] = ((out->SurfaceWidthY[location] + 127) / 128) * 128; - out->PitchC[location] = 0; + out->PitchC[location] = 1; out->DCCEnable[location] = false; out->DCCMetaPitchY[location] = 0; out->DCCMetaPitchC[location] = 0; |