shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 10:58:48 +09:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: Uninitialized variables causing 4k60 UCLK to stay at DPM1 and not DPM0

Browse Source 
[ Upstream commit f3c23bea59 ]

[Why]
SwathSizePerSurfaceY[] and SwathSizePerSurfaceC[] values are uninitialized
 because we are using += instead of = operator.

[How]
Assign values in loop with = operator.

Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0.x, 6.1.x
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Samson Tam
2022-12-05 11:08:40 -05:00
committed by Greg Kroah-Hartman
parent 4ac1437d64
commit d179f9d27f
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
View File

@@ -6257,12 +6257,12 @@ bool dml32_CalculateDETSwathFillLatencyHiding(unsigned int NumberOfActiveSurface
double SwathSizePerSurfaceC[DC__NUM_DPP__MAX];
bool NotEnoughDETSwathFillLatencyHiding = false;
/* calculate sum of single swath size for all pipes in bytes*/
/* calculate sum of single swath size for all pipes in bytes */
for (k = 0; k < NumberOfActiveSurfaces; k++) {
SwathSizePerSurfaceY[k] += SwathHeightY[k] * SwathWidthY[k] * BytePerPixelInDETY[k] * NumOfDPP[k];
SwathSizePerSurfaceY[k] = SwathHeightY[k] * SwathWidthY[k] * BytePerPixelInDETY[k] * NumOfDPP[k];
if (SwathHeightC[k] != 0)
SwathSizePerSurfaceC[k] += SwathHeightC[k] * SwathWidthC[k] * BytePerPixelInDETC[k] * NumOfDPP[k];
SwathSizePerSurfaceC[k] = SwathHeightC[k] * SwathWidthC[k] * BytePerPixelInDETC[k] * NumOfDPP[k];
else
SwathSizePerSurfaceC[k] = 0;