[PATCH 09/12] drm/amd/display: Remove unused MaxUsedBW variable
Maíra Canal
mairacanal at riseup.net
Thu Jul 14 16:45:04 UTC 2022
Remove the variable MaxUsedBW from the function
DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.
As a side-effect, the variables MaxPerPlaneVActiveWRBandwidth and
WRBandwidth are also removed.
This was pointed by clang with the following warning:
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.c:3043:10:
warning: variable 'MaxUsedBW' set but not used [-Wunused-but-set-variable]
double MaxUsedBW = 0;
^
1 warning generated.
Signed-off-by: Maíra Canal <mairacanal at riseup.net>
---
.../dc/dml/dcn30/display_mode_vba_30.c | 28 -------------------
1 file changed, 28 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
index 842eb94ebe04..876b321b30ca 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
@@ -3037,40 +3037,12 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman
{
//Maximum Bandwidth Used
- double TotalWRBandwidth = 0;
- double MaxPerPlaneVActiveWRBandwidth = 0;
- double WRBandwidth = 0;
- double MaxUsedBW = 0;
- for (k = 0; k < v->NumberOfActivePlanes; ++k) {
- if (v->WritebackEnable[k] == true
- && v->WritebackPixelFormat[k] == dm_444_32) {
- WRBandwidth = v->WritebackDestinationWidth[k] * v->WritebackDestinationHeight[k]
- / (v->HTotal[k] * v->WritebackSourceHeight[k] / v->PixelClock[k]) * 4;
- } else if (v->WritebackEnable[k] == true) {
- WRBandwidth = v->WritebackDestinationWidth[k] * v->WritebackDestinationHeight[k]
- / (v->HTotal[k] * v->WritebackSourceHeight[k] / v->PixelClock[k]) * 8;
- }
- TotalWRBandwidth = TotalWRBandwidth + WRBandwidth;
- MaxPerPlaneVActiveWRBandwidth = dml_max(MaxPerPlaneVActiveWRBandwidth, WRBandwidth);
- }
-
v->TotalDataReadBandwidth = 0;
for (k = 0; k < v->NumberOfActivePlanes; ++k) {
v->TotalDataReadBandwidth = v->TotalDataReadBandwidth
+ v->ReadBandwidthPlaneLuma[k]
+ v->ReadBandwidthPlaneChroma[k];
}
-
- {
- double MaxPerPlaneVActiveRDBandwidth = 0;
- for (k = 0; k < v->NumberOfActivePlanes; ++k) {
- MaxPerPlaneVActiveRDBandwidth = dml_max(MaxPerPlaneVActiveRDBandwidth,
- v->ReadBandwidthPlaneLuma[k] + v->ReadBandwidthPlaneChroma[k]);
-
- }
- }
-
- MaxUsedBW = MaxTotalRDBandwidth + TotalWRBandwidth;
}
// VStartup Margin
--
2.36.1
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