* [PATCH AUTOSEL 5.15 07/10] drm/amd/display: Reduce number of arguments of dml31's CalculateWatermarksAndDRAMSpeedChangeSupport()
[not found] <20220921155407.235132-1-sashal@kernel.org>
@ 2022-09-21 15:54 ` Sasha Levin
2022-09-21 15:54 ` [PATCH AUTOSEL 5.15 08/10] drm/amd/display: Reduce number of arguments of dml31's CalculateFlipSchedule() Sasha Levin
` (2 subsequent siblings)
3 siblings, 0 replies; 4+ messages in thread
From: Sasha Levin @ 2022-09-21 15:54 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Nathan Chancellor, Sudip Mukherjee (Codethink), Maíra Canal,
Rodrigo Siqueira, Alex Deucher, Sasha Levin, harry.wentland,
sunpeng.li, christian.koenig, Xinhui.Pan, airlied, daniel,
ndesaulniers, nicholas.kazlauskas, Dmytro.Laktyushkin,
agustin.gutierrez, mdaenzer, Wesley.Chalmers, Charlene.Liu,
amd-gfx, dri-devel, llvm
From: Nathan Chancellor <nathan@kernel.org>
[ Upstream commit 37934d4118e22bceb80141804391975078f31734 ]
Most of the arguments are identical between the two call sites and they
can be accessed through the 'struct vba_vars_st' pointer. This reduces
the total amount of stack space that
dml31_ModeSupportAndSystemConfigurationFull() uses by 240 bytes with
LLVM 16 (2216 -> 1976), helping clear up the following clang warning:
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c:3908:6: error: stack frame size (2216) exceeds limit (2048) in 'dml31_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
^
1 error generated.
Link: https://github.com/ClangBuiltLinux/linux/issues/1681
Reported-by: "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@gmail.com>
Tested-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../dc/dml/dcn31/display_mode_vba_31.c | 248 ++++--------------
1 file changed, 52 insertions(+), 196 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
index d58925cff420..a6ce22d23b26 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
@@ -319,64 +319,28 @@ static void CalculateVupdateAndDynamicMetadataParameters(
static void CalculateWatermarksAndDRAMSpeedChangeSupport(
struct display_mode_lib *mode_lib,
unsigned int PrefetchMode,
- unsigned int NumberOfActivePlanes,
- unsigned int MaxLineBufferLines,
- unsigned int LineBufferSize,
- unsigned int WritebackInterfaceBufferSize,
double DCFCLK,
double ReturnBW,
- bool SynchronizedVBlank,
- unsigned int dpte_group_bytes[],
- unsigned int MetaChunkSize,
double UrgentLatency,
double ExtraLatency,
- double WritebackLatency,
- double WritebackChunkSize,
double SOCCLK,
- double DRAMClockChangeLatency,
- double SRExitTime,
- double SREnterPlusExitTime,
- double SRExitZ8Time,
- double SREnterPlusExitZ8Time,
double DCFCLKDeepSleep,
unsigned int DETBufferSizeY[],
unsigned int DETBufferSizeC[],
unsigned int SwathHeightY[],
unsigned int SwathHeightC[],
- unsigned int LBBitPerPixel[],
double SwathWidthY[],
double SwathWidthC[],
- double HRatio[],
- double HRatioChroma[],
- unsigned int vtaps[],
- unsigned int VTAPsChroma[],
- double VRatio[],
- double VRatioChroma[],
- unsigned int HTotal[],
- double PixelClock[],
- unsigned int BlendingAndTiming[],
unsigned int DPPPerPlane[],
double BytePerPixelDETY[],
double BytePerPixelDETC[],
- double DSTXAfterScaler[],
- double DSTYAfterScaler[],
- bool WritebackEnable[],
- enum source_format_class WritebackPixelFormat[],
- double WritebackDestinationWidth[],
- double WritebackDestinationHeight[],
- double WritebackSourceHeight[],
bool UnboundedRequestEnabled,
int unsigned CompressedBufferSizeInkByte,
enum clock_change_support *DRAMClockChangeSupport,
- double *UrgentWatermark,
- double *WritebackUrgentWatermark,
- double *DRAMClockChangeWatermark,
- double *WritebackDRAMClockChangeWatermark,
double *StutterExitWatermark,
double *StutterEnterPlusExitWatermark,
double *Z8StutterExitWatermark,
- double *Z8StutterEnterPlusExitWatermark,
- double *MinActiveDRAMClockChangeLatencySupported);
+ double *Z8StutterEnterPlusExitWatermark);
static void CalculateDCFCLKDeepSleep(
struct display_mode_lib *mode_lib,
@@ -3072,64 +3036,28 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman
CalculateWatermarksAndDRAMSpeedChangeSupport(
mode_lib,
PrefetchMode,
- v->NumberOfActivePlanes,
- v->MaxLineBufferLines,
- v->LineBufferSize,
- v->WritebackInterfaceBufferSize,
v->DCFCLK,
v->ReturnBW,
- v->SynchronizedVBlank,
- v->dpte_group_bytes,
- v->MetaChunkSize,
v->UrgentLatency,
v->UrgentExtraLatency,
- v->WritebackLatency,
- v->WritebackChunkSize,
v->SOCCLK,
- v->DRAMClockChangeLatency,
- v->SRExitTime,
- v->SREnterPlusExitTime,
- v->SRExitZ8Time,
- v->SREnterPlusExitZ8Time,
v->DCFCLKDeepSleep,
v->DETBufferSizeY,
v->DETBufferSizeC,
v->SwathHeightY,
v->SwathHeightC,
- v->LBBitPerPixel,
v->SwathWidthY,
v->SwathWidthC,
- v->HRatio,
- v->HRatioChroma,
- v->vtaps,
- v->VTAPsChroma,
- v->VRatio,
- v->VRatioChroma,
- v->HTotal,
- v->PixelClock,
- v->BlendingAndTiming,
v->DPPPerPlane,
v->BytePerPixelDETY,
v->BytePerPixelDETC,
- v->DSTXAfterScaler,
- v->DSTYAfterScaler,
- v->WritebackEnable,
- v->WritebackPixelFormat,
- v->WritebackDestinationWidth,
- v->WritebackDestinationHeight,
- v->WritebackSourceHeight,
v->UnboundedRequestEnabled,
v->CompressedBufferSizeInkByte,
&DRAMClockChangeSupport,
- &v->UrgentWatermark,
- &v->WritebackUrgentWatermark,
- &v->DRAMClockChangeWatermark,
- &v->WritebackDRAMClockChangeWatermark,
&v->StutterExitWatermark,
&v->StutterEnterPlusExitWatermark,
&v->Z8StutterExitWatermark,
- &v->Z8StutterEnterPlusExitWatermark,
- &v->MinActiveDRAMClockChangeLatencySupported);
+ &v->Z8StutterEnterPlusExitWatermark);
for (k = 0; k < v->NumberOfActivePlanes; ++k) {
if (v->WritebackEnable[k] == true) {
@@ -5561,64 +5489,28 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
CalculateWatermarksAndDRAMSpeedChangeSupport(
mode_lib,
v->PrefetchModePerState[i][j],
- v->NumberOfActivePlanes,
- v->MaxLineBufferLines,
- v->LineBufferSize,
- v->WritebackInterfaceBufferSize,
v->DCFCLKState[i][j],
v->ReturnBWPerState[i][j],
- v->SynchronizedVBlank,
- v->dpte_group_bytes,
- v->MetaChunkSize,
v->UrgLatency[i],
v->ExtraLatency,
- v->WritebackLatency,
- v->WritebackChunkSize,
v->SOCCLKPerState[i],
- v->DRAMClockChangeLatency,
- v->SRExitTime,
- v->SREnterPlusExitTime,
- v->SRExitZ8Time,
- v->SREnterPlusExitZ8Time,
v->ProjectedDCFCLKDeepSleep[i][j],
v->DETBufferSizeYThisState,
v->DETBufferSizeCThisState,
v->SwathHeightYThisState,
v->SwathHeightCThisState,
- v->LBBitPerPixel,
v->SwathWidthYThisState,
v->SwathWidthCThisState,
- v->HRatio,
- v->HRatioChroma,
- v->vtaps,
- v->VTAPsChroma,
- v->VRatio,
- v->VRatioChroma,
- v->HTotal,
- v->PixelClock,
- v->BlendingAndTiming,
v->NoOfDPPThisState,
v->BytePerPixelInDETY,
v->BytePerPixelInDETC,
- v->DSTXAfterScaler,
- v->DSTYAfterScaler,
- v->WritebackEnable,
- v->WritebackPixelFormat,
- v->WritebackDestinationWidth,
- v->WritebackDestinationHeight,
- v->WritebackSourceHeight,
UnboundedRequestEnabledThisState,
CompressedBufferSizeInkByteThisState,
&v->DRAMClockChangeSupport[i][j],
- &v->UrgentWatermark,
- &v->WritebackUrgentWatermark,
- &v->DRAMClockChangeWatermark,
- &v->WritebackDRAMClockChangeWatermark,
- &dummy,
&dummy,
&dummy,
&dummy,
- &v->MinActiveDRAMClockChangeLatencySupported);
+ &dummy);
}
}
@@ -5743,64 +5635,28 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
static void CalculateWatermarksAndDRAMSpeedChangeSupport(
struct display_mode_lib *mode_lib,
unsigned int PrefetchMode,
- unsigned int NumberOfActivePlanes,
- unsigned int MaxLineBufferLines,
- unsigned int LineBufferSize,
- unsigned int WritebackInterfaceBufferSize,
double DCFCLK,
double ReturnBW,
- bool SynchronizedVBlank,
- unsigned int dpte_group_bytes[],
- unsigned int MetaChunkSize,
double UrgentLatency,
double ExtraLatency,
- double WritebackLatency,
- double WritebackChunkSize,
double SOCCLK,
- double DRAMClockChangeLatency,
- double SRExitTime,
- double SREnterPlusExitTime,
- double SRExitZ8Time,
- double SREnterPlusExitZ8Time,
double DCFCLKDeepSleep,
unsigned int DETBufferSizeY[],
unsigned int DETBufferSizeC[],
unsigned int SwathHeightY[],
unsigned int SwathHeightC[],
- unsigned int LBBitPerPixel[],
double SwathWidthY[],
double SwathWidthC[],
- double HRatio[],
- double HRatioChroma[],
- unsigned int vtaps[],
- unsigned int VTAPsChroma[],
- double VRatio[],
- double VRatioChroma[],
- unsigned int HTotal[],
- double PixelClock[],
- unsigned int BlendingAndTiming[],
unsigned int DPPPerPlane[],
double BytePerPixelDETY[],
double BytePerPixelDETC[],
- double DSTXAfterScaler[],
- double DSTYAfterScaler[],
- bool WritebackEnable[],
- enum source_format_class WritebackPixelFormat[],
- double WritebackDestinationWidth[],
- double WritebackDestinationHeight[],
- double WritebackSourceHeight[],
bool UnboundedRequestEnabled,
int unsigned CompressedBufferSizeInkByte,
enum clock_change_support *DRAMClockChangeSupport,
- double *UrgentWatermark,
- double *WritebackUrgentWatermark,
- double *DRAMClockChangeWatermark,
- double *WritebackDRAMClockChangeWatermark,
double *StutterExitWatermark,
double *StutterEnterPlusExitWatermark,
double *Z8StutterExitWatermark,
- double *Z8StutterEnterPlusExitWatermark,
- double *MinActiveDRAMClockChangeLatencySupported)
+ double *Z8StutterEnterPlusExitWatermark)
{
struct vba_vars_st *v = &mode_lib->vba;
double EffectiveLBLatencyHidingY;
@@ -5820,103 +5676,103 @@ static void CalculateWatermarksAndDRAMSpeedChangeSupport(
double TotalPixelBW = 0.0;
int k, j;
- *UrgentWatermark = UrgentLatency + ExtraLatency;
+ v->UrgentWatermark = UrgentLatency + ExtraLatency;
#ifdef __DML_VBA_DEBUG__
dml_print("DML::%s: UrgentLatency = %f\n", __func__, UrgentLatency);
dml_print("DML::%s: ExtraLatency = %f\n", __func__, ExtraLatency);
- dml_print("DML::%s: UrgentWatermark = %f\n", __func__, *UrgentWatermark);
+ dml_print("DML::%s: UrgentWatermark = %f\n", __func__, v->UrgentWatermark);
#endif
- *DRAMClockChangeWatermark = DRAMClockChangeLatency + *UrgentWatermark;
+ v->DRAMClockChangeWatermark = v->DRAMClockChangeLatency + v->UrgentWatermark;
#ifdef __DML_VBA_DEBUG__
- dml_print("DML::%s: DRAMClockChangeLatency = %f\n", __func__, DRAMClockChangeLatency);
- dml_print("DML::%s: DRAMClockChangeWatermark = %f\n", __func__, *DRAMClockChangeWatermark);
+ dml_print("DML::%s: v->DRAMClockChangeLatency = %f\n", __func__, v->DRAMClockChangeLatency);
+ dml_print("DML::%s: DRAMClockChangeWatermark = %f\n", __func__, v->DRAMClockChangeWatermark);
#endif
v->TotalActiveWriteback = 0;
- for (k = 0; k < NumberOfActivePlanes; ++k) {
- if (WritebackEnable[k] == true) {
+ for (k = 0; k < v->NumberOfActivePlanes; ++k) {
+ if (v->WritebackEnable[k] == true) {
v->TotalActiveWriteback = v->TotalActiveWriteback + 1;
}
}
if (v->TotalActiveWriteback <= 1) {
- *WritebackUrgentWatermark = WritebackLatency;
+ v->WritebackUrgentWatermark = v->WritebackLatency;
} else {
- *WritebackUrgentWatermark = WritebackLatency + WritebackChunkSize * 1024.0 / 32.0 / SOCCLK;
+ v->WritebackUrgentWatermark = v->WritebackLatency + v->WritebackChunkSize * 1024.0 / 32.0 / SOCCLK;
}
if (v->TotalActiveWriteback <= 1) {
- *WritebackDRAMClockChangeWatermark = DRAMClockChangeLatency + WritebackLatency;
+ v->WritebackDRAMClockChangeWatermark = v->DRAMClockChangeLatency + v->WritebackLatency;
} else {
- *WritebackDRAMClockChangeWatermark = DRAMClockChangeLatency + WritebackLatency + WritebackChunkSize * 1024.0 / 32.0 / SOCCLK;
+ v->WritebackDRAMClockChangeWatermark = v->DRAMClockChangeLatency + v->WritebackLatency + v->WritebackChunkSize * 1024.0 / 32.0 / SOCCLK;
}
- for (k = 0; k < NumberOfActivePlanes; ++k) {
+ for (k = 0; k < v->NumberOfActivePlanes; ++k) {
TotalPixelBW = TotalPixelBW
- + DPPPerPlane[k] * (SwathWidthY[k] * BytePerPixelDETY[k] * VRatio[k] + SwathWidthC[k] * BytePerPixelDETC[k] * VRatioChroma[k])
- / (HTotal[k] / PixelClock[k]);
+ + DPPPerPlane[k] * (SwathWidthY[k] * BytePerPixelDETY[k] * v->VRatio[k] + SwathWidthC[k] * BytePerPixelDETC[k] * v->VRatioChroma[k])
+ / (v->HTotal[k] / v->PixelClock[k]);
}
- for (k = 0; k < NumberOfActivePlanes; ++k) {
+ for (k = 0; k < v->NumberOfActivePlanes; ++k) {
double EffectiveDETBufferSizeY = DETBufferSizeY[k];
v->LBLatencyHidingSourceLinesY = dml_min(
- (double) MaxLineBufferLines,
- dml_floor(LineBufferSize / LBBitPerPixel[k] / (SwathWidthY[k] / dml_max(HRatio[k], 1.0)), 1)) - (vtaps[k] - 1);
+ (double) v->MaxLineBufferLines,
+ dml_floor(v->LineBufferSize / v->LBBitPerPixel[k] / (SwathWidthY[k] / dml_max(v->HRatio[k], 1.0)), 1)) - (v->vtaps[k] - 1);
v->LBLatencyHidingSourceLinesC = dml_min(
- (double) MaxLineBufferLines,
- dml_floor(LineBufferSize / LBBitPerPixel[k] / (SwathWidthC[k] / dml_max(HRatioChroma[k], 1.0)), 1)) - (VTAPsChroma[k] - 1);
+ (double) v->MaxLineBufferLines,
+ dml_floor(v->LineBufferSize / v->LBBitPerPixel[k] / (SwathWidthC[k] / dml_max(v->HRatioChroma[k], 1.0)), 1)) - (v->VTAPsChroma[k] - 1);
- EffectiveLBLatencyHidingY = v->LBLatencyHidingSourceLinesY / VRatio[k] * (HTotal[k] / PixelClock[k]);
+ EffectiveLBLatencyHidingY = v->LBLatencyHidingSourceLinesY / v->VRatio[k] * (v->HTotal[k] / v->PixelClock[k]);
- EffectiveLBLatencyHidingC = v->LBLatencyHidingSourceLinesC / VRatioChroma[k] * (HTotal[k] / PixelClock[k]);
+ EffectiveLBLatencyHidingC = v->LBLatencyHidingSourceLinesC / v->VRatioChroma[k] * (v->HTotal[k] / v->PixelClock[k]);
if (UnboundedRequestEnabled) {
EffectiveDETBufferSizeY = EffectiveDETBufferSizeY
- + CompressedBufferSizeInkByte * 1024 * SwathWidthY[k] * BytePerPixelDETY[k] * VRatio[k] / (HTotal[k] / PixelClock[k]) / TotalPixelBW;
+ + CompressedBufferSizeInkByte * 1024 * SwathWidthY[k] * BytePerPixelDETY[k] * v->VRatio[k] / (v->HTotal[k] / v->PixelClock[k]) / TotalPixelBW;
}
LinesInDETY[k] = (double) EffectiveDETBufferSizeY / BytePerPixelDETY[k] / SwathWidthY[k];
LinesInDETYRoundedDownToSwath[k] = dml_floor(LinesInDETY[k], SwathHeightY[k]);
- FullDETBufferingTimeY = LinesInDETYRoundedDownToSwath[k] * (HTotal[k] / PixelClock[k]) / VRatio[k];
+ FullDETBufferingTimeY = LinesInDETYRoundedDownToSwath[k] * (v->HTotal[k] / v->PixelClock[k]) / v->VRatio[k];
if (BytePerPixelDETC[k] > 0) {
LinesInDETC = v->DETBufferSizeC[k] / BytePerPixelDETC[k] / SwathWidthC[k];
LinesInDETCRoundedDownToSwath = dml_floor(LinesInDETC, SwathHeightC[k]);
- FullDETBufferingTimeC = LinesInDETCRoundedDownToSwath * (HTotal[k] / PixelClock[k]) / VRatioChroma[k];
+ FullDETBufferingTimeC = LinesInDETCRoundedDownToSwath * (v->HTotal[k] / v->PixelClock[k]) / v->VRatioChroma[k];
} else {
LinesInDETC = 0;
FullDETBufferingTimeC = 999999;
}
ActiveDRAMClockChangeLatencyMarginY = EffectiveLBLatencyHidingY + FullDETBufferingTimeY
- - ((double) DSTXAfterScaler[k] / HTotal[k] + DSTYAfterScaler[k]) * HTotal[k] / PixelClock[k] - *UrgentWatermark - *DRAMClockChangeWatermark;
+ - ((double) v->DSTXAfterScaler[k] / v->HTotal[k] + v->DSTYAfterScaler[k]) * v->HTotal[k] / v->PixelClock[k] - v->UrgentWatermark - v->DRAMClockChangeWatermark;
- if (NumberOfActivePlanes > 1) {
+ if (v->NumberOfActivePlanes > 1) {
ActiveDRAMClockChangeLatencyMarginY = ActiveDRAMClockChangeLatencyMarginY
- - (1 - 1.0 / NumberOfActivePlanes) * SwathHeightY[k] * HTotal[k] / PixelClock[k] / VRatio[k];
+ - (1 - 1.0 / v->NumberOfActivePlanes) * SwathHeightY[k] * v->HTotal[k] / v->PixelClock[k] / v->VRatio[k];
}
if (BytePerPixelDETC[k] > 0) {
ActiveDRAMClockChangeLatencyMarginC = EffectiveLBLatencyHidingC + FullDETBufferingTimeC
- - ((double) DSTXAfterScaler[k] / HTotal[k] + DSTYAfterScaler[k]) * HTotal[k] / PixelClock[k] - *UrgentWatermark - *DRAMClockChangeWatermark;
+ - ((double) v->DSTXAfterScaler[k] / v->HTotal[k] + v->DSTYAfterScaler[k]) * v->HTotal[k] / v->PixelClock[k] - v->UrgentWatermark - v->DRAMClockChangeWatermark;
- if (NumberOfActivePlanes > 1) {
+ if (v->NumberOfActivePlanes > 1) {
ActiveDRAMClockChangeLatencyMarginC = ActiveDRAMClockChangeLatencyMarginC
- - (1 - 1.0 / NumberOfActivePlanes) * SwathHeightC[k] * HTotal[k] / PixelClock[k] / VRatioChroma[k];
+ - (1 - 1.0 / v->NumberOfActivePlanes) * SwathHeightC[k] * v->HTotal[k] / v->PixelClock[k] / v->VRatioChroma[k];
}
v->ActiveDRAMClockChangeLatencyMargin[k] = dml_min(ActiveDRAMClockChangeLatencyMarginY, ActiveDRAMClockChangeLatencyMarginC);
} else {
v->ActiveDRAMClockChangeLatencyMargin[k] = ActiveDRAMClockChangeLatencyMarginY;
}
- if (WritebackEnable[k] == true) {
- WritebackDRAMClockChangeLatencyHiding = WritebackInterfaceBufferSize * 1024
- / (WritebackDestinationWidth[k] * WritebackDestinationHeight[k] / (WritebackSourceHeight[k] * HTotal[k] / PixelClock[k]) * 4);
- if (WritebackPixelFormat[k] == dm_444_64) {
+ if (v->WritebackEnable[k] == true) {
+ WritebackDRAMClockChangeLatencyHiding = v->WritebackInterfaceBufferSize * 1024
+ / (v->WritebackDestinationWidth[k] * v->WritebackDestinationHeight[k] / (v->WritebackSourceHeight[k] * v->HTotal[k] / v->PixelClock[k]) * 4);
+ if (v->WritebackPixelFormat[k] == dm_444_64) {
WritebackDRAMClockChangeLatencyHiding = WritebackDRAMClockChangeLatencyHiding / 2;
}
WritebackDRAMClockChangeLatencyMargin = WritebackDRAMClockChangeLatencyHiding - v->WritebackDRAMClockChangeWatermark;
@@ -5926,14 +5782,14 @@ static void CalculateWatermarksAndDRAMSpeedChangeSupport(
v->MinActiveDRAMClockChangeMargin = 999999;
PlaneWithMinActiveDRAMClockChangeMargin = 0;
- for (k = 0; k < NumberOfActivePlanes; ++k) {
+ for (k = 0; k < v->NumberOfActivePlanes; ++k) {
if (v->ActiveDRAMClockChangeLatencyMargin[k] < v->MinActiveDRAMClockChangeMargin) {
v->MinActiveDRAMClockChangeMargin = v->ActiveDRAMClockChangeLatencyMargin[k];
- if (BlendingAndTiming[k] == k) {
+ if (v->BlendingAndTiming[k] == k) {
PlaneWithMinActiveDRAMClockChangeMargin = k;
} else {
- for (j = 0; j < NumberOfActivePlanes; ++j) {
- if (BlendingAndTiming[k] == j) {
+ for (j = 0; j < v->NumberOfActivePlanes; ++j) {
+ if (v->BlendingAndTiming[k] == j) {
PlaneWithMinActiveDRAMClockChangeMargin = j;
}
}
@@ -5941,11 +5797,11 @@ static void CalculateWatermarksAndDRAMSpeedChangeSupport(
}
}
- *MinActiveDRAMClockChangeLatencySupported = v->MinActiveDRAMClockChangeMargin + DRAMClockChangeLatency;
+ v->MinActiveDRAMClockChangeLatencySupported = v->MinActiveDRAMClockChangeMargin + v->DRAMClockChangeLatency ;
SecondMinActiveDRAMClockChangeMarginOneDisplayInVBLank = 999999;
- for (k = 0; k < NumberOfActivePlanes; ++k) {
- if (!((k == PlaneWithMinActiveDRAMClockChangeMargin) && (BlendingAndTiming[k] == k)) && !(BlendingAndTiming[k] == PlaneWithMinActiveDRAMClockChangeMargin)
+ for (k = 0; k < v->NumberOfActivePlanes; ++k) {
+ if (!((k == PlaneWithMinActiveDRAMClockChangeMargin) && (v->BlendingAndTiming[k] == k)) && !(v->BlendingAndTiming[k] == PlaneWithMinActiveDRAMClockChangeMargin)
&& v->ActiveDRAMClockChangeLatencyMargin[k] < SecondMinActiveDRAMClockChangeMarginOneDisplayInVBLank) {
SecondMinActiveDRAMClockChangeMarginOneDisplayInVBLank = v->ActiveDRAMClockChangeLatencyMargin[k];
}
@@ -5953,25 +5809,25 @@ static void CalculateWatermarksAndDRAMSpeedChangeSupport(
v->TotalNumberOfActiveOTG = 0;
- for (k = 0; k < NumberOfActivePlanes; ++k) {
- if (BlendingAndTiming[k] == k) {
+ for (k = 0; k < v->NumberOfActivePlanes; ++k) {
+ if (v->BlendingAndTiming[k] == k) {
v->TotalNumberOfActiveOTG = v->TotalNumberOfActiveOTG + 1;
}
}
if (v->MinActiveDRAMClockChangeMargin > 0 && PrefetchMode == 0) {
*DRAMClockChangeSupport = dm_dram_clock_change_vactive;
- } else if ((SynchronizedVBlank == true || v->TotalNumberOfActiveOTG == 1
+ } else if ((v->SynchronizedVBlank == true || v->TotalNumberOfActiveOTG == 1
|| SecondMinActiveDRAMClockChangeMarginOneDisplayInVBLank > 0) && PrefetchMode == 0) {
*DRAMClockChangeSupport = dm_dram_clock_change_vblank;
} else {
*DRAMClockChangeSupport = dm_dram_clock_change_unsupported;
}
- *StutterExitWatermark = SRExitTime + ExtraLatency + 10 / DCFCLKDeepSleep;
- *StutterEnterPlusExitWatermark = (SREnterPlusExitTime + ExtraLatency + 10 / DCFCLKDeepSleep);
- *Z8StutterExitWatermark = SRExitZ8Time + ExtraLatency + 10 / DCFCLKDeepSleep;
- *Z8StutterEnterPlusExitWatermark = SREnterPlusExitZ8Time + ExtraLatency + 10 / DCFCLKDeepSleep;
+ *StutterExitWatermark = v->SRExitTime + ExtraLatency + 10 / DCFCLKDeepSleep;
+ *StutterEnterPlusExitWatermark = (v->SREnterPlusExitTime + ExtraLatency + 10 / DCFCLKDeepSleep);
+ *Z8StutterExitWatermark = v->SRExitZ8Time + ExtraLatency + 10 / DCFCLKDeepSleep;
+ *Z8StutterEnterPlusExitWatermark = v->SREnterPlusExitZ8Time + ExtraLatency + 10 / DCFCLKDeepSleep;
#ifdef __DML_VBA_DEBUG__
dml_print("DML::%s: StutterExitWatermark = %f\n", __func__, *StutterExitWatermark);
--
2.35.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH AUTOSEL 5.15 08/10] drm/amd/display: Reduce number of arguments of dml31's CalculateFlipSchedule()
[not found] <20220921155407.235132-1-sashal@kernel.org>
2022-09-21 15:54 ` [PATCH AUTOSEL 5.15 07/10] drm/amd/display: Reduce number of arguments of dml31's CalculateWatermarksAndDRAMSpeedChangeSupport() Sasha Levin
@ 2022-09-21 15:54 ` Sasha Levin
2022-09-21 15:54 ` [PATCH AUTOSEL 5.15 09/10] drm/amd/display: Mark dml30's UseMinimumDCFCLK() as noinline for stack usage Sasha Levin
2022-09-21 15:54 ` [PATCH AUTOSEL 5.15 10/10] drm/rockchip: Fix return type of cdn_dp_connector_mode_valid Sasha Levin
3 siblings, 0 replies; 4+ messages in thread
From: Sasha Levin @ 2022-09-21 15:54 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Nathan Chancellor, Sudip Mukherjee (Codethink), Maíra Canal,
Rodrigo Siqueira, Alex Deucher, Sasha Levin, harry.wentland,
sunpeng.li, christian.koenig, Xinhui.Pan, airlied, daniel,
ndesaulniers, nicholas.kazlauskas, mdaenzer, Dmytro.Laktyushkin,
aurabindo.pillai, chaitanya.dhere, Charlene.Liu, amd-gfx,
dri-devel, llvm
From: Nathan Chancellor <nathan@kernel.org>
[ Upstream commit 21485d3da659b66c37d99071623af83ee1c6733d ]
Most of the arguments are identical between the two call sites and they
can be accessed through the 'struct vba_vars_st' pointer. This reduces
the total amount of stack space that
dml31_ModeSupportAndSystemConfigurationFull() uses by 112 bytes with
LLVM 16 (1976 -> 1864), helping clear up the following clang warning:
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c:3908:6: error: stack frame size (2216) exceeds limit (2048) in 'dml31_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
^
1 error generated.
Link: https://github.com/ClangBuiltLinux/linux/issues/1681
Reported-by: "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@gmail.com>
Tested-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../dc/dml/dcn31/display_mode_vba_31.c | 172 +++++-------------
1 file changed, 47 insertions(+), 125 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
index a6ce22d23b26..aa0507e01792 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
@@ -259,33 +259,13 @@ static void CalculateRowBandwidth(
static void CalculateFlipSchedule(
struct display_mode_lib *mode_lib,
+ unsigned int k,
double HostVMInefficiencyFactor,
double UrgentExtraLatency,
double UrgentLatency,
- unsigned int GPUVMMaxPageTableLevels,
- bool HostVMEnable,
- unsigned int HostVMMaxNonCachedPageTableLevels,
- bool GPUVMEnable,
- double HostVMMinPageSize,
double PDEAndMetaPTEBytesPerFrame,
double MetaRowBytes,
- double DPTEBytesPerRow,
- double BandwidthAvailableForImmediateFlip,
- unsigned int TotImmediateFlipBytes,
- enum source_format_class SourcePixelFormat,
- double LineTime,
- double VRatio,
- double VRatioChroma,
- double Tno_bw,
- bool DCCEnable,
- unsigned int dpte_row_height,
- unsigned int meta_row_height,
- unsigned int dpte_row_height_chroma,
- unsigned int meta_row_height_chroma,
- double *DestinationLinesToRequestVMInImmediateFlip,
- double *DestinationLinesToRequestRowInImmediateFlip,
- double *final_flip_bw,
- bool *ImmediateFlipSupportedForPipe);
+ double DPTEBytesPerRow);
static double CalculateWriteBackDelay(
enum source_format_class WritebackPixelFormat,
double WritebackHRatio,
@@ -2923,33 +2903,13 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman
for (k = 0; k < v->NumberOfActivePlanes; ++k) {
CalculateFlipSchedule(
mode_lib,
+ k,
HostVMInefficiencyFactor,
v->UrgentExtraLatency,
v->UrgentLatency,
- v->GPUVMMaxPageTableLevels,
- v->HostVMEnable,
- v->HostVMMaxNonCachedPageTableLevels,
- v->GPUVMEnable,
- v->HostVMMinPageSize,
v->PDEAndMetaPTEBytesFrame[k],
v->MetaRowByte[k],
- v->PixelPTEBytesPerRow[k],
- v->BandwidthAvailableForImmediateFlip,
- v->TotImmediateFlipBytes,
- v->SourcePixelFormat[k],
- v->HTotal[k] / v->PixelClock[k],
- v->VRatio[k],
- v->VRatioChroma[k],
- v->Tno_bw[k],
- v->DCCEnable[k],
- v->dpte_row_height[k],
- v->meta_row_height[k],
- v->dpte_row_height_chroma[k],
- v->meta_row_height_chroma[k],
- &v->DestinationLinesToRequestVMInImmediateFlip[k],
- &v->DestinationLinesToRequestRowInImmediateFlip[k],
- &v->final_flip_bw[k],
- &v->ImmediateFlipSupportedForPipe[k]);
+ v->PixelPTEBytesPerRow[k]);
}
v->total_dcn_read_bw_with_flip = 0.0;
@@ -3669,61 +3629,43 @@ static void CalculateRowBandwidth(
static void CalculateFlipSchedule(
struct display_mode_lib *mode_lib,
+ unsigned int k,
double HostVMInefficiencyFactor,
double UrgentExtraLatency,
double UrgentLatency,
- unsigned int GPUVMMaxPageTableLevels,
- bool HostVMEnable,
- unsigned int HostVMMaxNonCachedPageTableLevels,
- bool GPUVMEnable,
- double HostVMMinPageSize,
double PDEAndMetaPTEBytesPerFrame,
double MetaRowBytes,
- double DPTEBytesPerRow,
- double BandwidthAvailableForImmediateFlip,
- unsigned int TotImmediateFlipBytes,
- enum source_format_class SourcePixelFormat,
- double LineTime,
- double VRatio,
- double VRatioChroma,
- double Tno_bw,
- bool DCCEnable,
- unsigned int dpte_row_height,
- unsigned int meta_row_height,
- unsigned int dpte_row_height_chroma,
- unsigned int meta_row_height_chroma,
- double *DestinationLinesToRequestVMInImmediateFlip,
- double *DestinationLinesToRequestRowInImmediateFlip,
- double *final_flip_bw,
- bool *ImmediateFlipSupportedForPipe)
+ double DPTEBytesPerRow)
{
+ struct vba_vars_st *v = &mode_lib->vba;
double min_row_time = 0.0;
unsigned int HostVMDynamicLevelsTrips;
double TimeForFetchingMetaPTEImmediateFlip;
double TimeForFetchingRowInVBlankImmediateFlip;
double ImmediateFlipBW;
+ double LineTime = v->HTotal[k] / v->PixelClock[k];
- if (GPUVMEnable == true && HostVMEnable == true) {
- HostVMDynamicLevelsTrips = HostVMMaxNonCachedPageTableLevels;
+ if (v->GPUVMEnable == true && v->HostVMEnable == true) {
+ HostVMDynamicLevelsTrips = v->HostVMMaxNonCachedPageTableLevels;
} else {
HostVMDynamicLevelsTrips = 0;
}
- if (GPUVMEnable == true || DCCEnable == true) {
- ImmediateFlipBW = (PDEAndMetaPTEBytesPerFrame + MetaRowBytes + DPTEBytesPerRow) * BandwidthAvailableForImmediateFlip / TotImmediateFlipBytes;
+ if (v->GPUVMEnable == true || v->DCCEnable[k] == true) {
+ ImmediateFlipBW = (PDEAndMetaPTEBytesPerFrame + MetaRowBytes + DPTEBytesPerRow) * v->BandwidthAvailableForImmediateFlip / v->TotImmediateFlipBytes;
}
- if (GPUVMEnable == true) {
+ if (v->GPUVMEnable == true) {
TimeForFetchingMetaPTEImmediateFlip = dml_max3(
- Tno_bw + PDEAndMetaPTEBytesPerFrame * HostVMInefficiencyFactor / ImmediateFlipBW,
- UrgentExtraLatency + UrgentLatency * (GPUVMMaxPageTableLevels * (HostVMDynamicLevelsTrips + 1) - 1),
+ v->Tno_bw[k] + PDEAndMetaPTEBytesPerFrame * HostVMInefficiencyFactor / ImmediateFlipBW,
+ UrgentExtraLatency + UrgentLatency * (v->GPUVMMaxPageTableLevels * (HostVMDynamicLevelsTrips + 1) - 1),
LineTime / 4.0);
} else {
TimeForFetchingMetaPTEImmediateFlip = 0;
}
- *DestinationLinesToRequestVMInImmediateFlip = dml_ceil(4.0 * (TimeForFetchingMetaPTEImmediateFlip / LineTime), 1) / 4.0;
- if ((GPUVMEnable == true || DCCEnable == true)) {
+ v->DestinationLinesToRequestVMInImmediateFlip[k] = dml_ceil(4.0 * (TimeForFetchingMetaPTEImmediateFlip / LineTime), 1) / 4.0;
+ if ((v->GPUVMEnable == true || v->DCCEnable[k] == true)) {
TimeForFetchingRowInVBlankImmediateFlip = dml_max3(
(MetaRowBytes + DPTEBytesPerRow * HostVMInefficiencyFactor) / ImmediateFlipBW,
UrgentLatency * (HostVMDynamicLevelsTrips + 1),
@@ -3732,54 +3674,54 @@ static void CalculateFlipSchedule(
TimeForFetchingRowInVBlankImmediateFlip = 0;
}
- *DestinationLinesToRequestRowInImmediateFlip = dml_ceil(4.0 * (TimeForFetchingRowInVBlankImmediateFlip / LineTime), 1) / 4.0;
+ v->DestinationLinesToRequestRowInImmediateFlip[k] = dml_ceil(4.0 * (TimeForFetchingRowInVBlankImmediateFlip / LineTime), 1) / 4.0;
- if (GPUVMEnable == true) {
- *final_flip_bw = dml_max(
- PDEAndMetaPTEBytesPerFrame * HostVMInefficiencyFactor / (*DestinationLinesToRequestVMInImmediateFlip * LineTime),
- (MetaRowBytes + DPTEBytesPerRow * HostVMInefficiencyFactor) / (*DestinationLinesToRequestRowInImmediateFlip * LineTime));
- } else if ((GPUVMEnable == true || DCCEnable == true)) {
- *final_flip_bw = (MetaRowBytes + DPTEBytesPerRow * HostVMInefficiencyFactor) / (*DestinationLinesToRequestRowInImmediateFlip * LineTime);
+ if (v->GPUVMEnable == true) {
+ v->final_flip_bw[k] = dml_max(
+ PDEAndMetaPTEBytesPerFrame * HostVMInefficiencyFactor / (v->DestinationLinesToRequestVMInImmediateFlip[k] * LineTime),
+ (MetaRowBytes + DPTEBytesPerRow * HostVMInefficiencyFactor) / (v->DestinationLinesToRequestRowInImmediateFlip[k] * LineTime));
+ } else if ((v->GPUVMEnable == true || v->DCCEnable[k] == true)) {
+ v->final_flip_bw[k] = (MetaRowBytes + DPTEBytesPerRow * HostVMInefficiencyFactor) / (v->DestinationLinesToRequestRowInImmediateFlip[k] * LineTime);
} else {
- *final_flip_bw = 0;
+ v->final_flip_bw[k] = 0;
}
- if (SourcePixelFormat == dm_420_8 || SourcePixelFormat == dm_420_10 || SourcePixelFormat == dm_rgbe_alpha) {
- if (GPUVMEnable == true && DCCEnable != true) {
- min_row_time = dml_min(dpte_row_height * LineTime / VRatio, dpte_row_height_chroma * LineTime / VRatioChroma);
- } else if (GPUVMEnable != true && DCCEnable == true) {
- min_row_time = dml_min(meta_row_height * LineTime / VRatio, meta_row_height_chroma * LineTime / VRatioChroma);
+ if (v->SourcePixelFormat[k] == dm_420_8 || v->SourcePixelFormat[k] == dm_420_10 || v->SourcePixelFormat[k] == dm_rgbe_alpha) {
+ if (v->GPUVMEnable == true && v->DCCEnable[k] != true) {
+ min_row_time = dml_min(v->dpte_row_height[k] * LineTime / v->VRatio[k], v->dpte_row_height_chroma[k] * LineTime / v->VRatioChroma[k]);
+ } else if (v->GPUVMEnable != true && v->DCCEnable[k] == true) {
+ min_row_time = dml_min(v->meta_row_height[k] * LineTime / v->VRatio[k], v->meta_row_height_chroma[k] * LineTime / v->VRatioChroma[k]);
} else {
min_row_time = dml_min4(
- dpte_row_height * LineTime / VRatio,
- meta_row_height * LineTime / VRatio,
- dpte_row_height_chroma * LineTime / VRatioChroma,
- meta_row_height_chroma * LineTime / VRatioChroma);
+ v->dpte_row_height[k] * LineTime / v->VRatio[k],
+ v->meta_row_height[k] * LineTime / v->VRatio[k],
+ v->dpte_row_height_chroma[k] * LineTime / v->VRatioChroma[k],
+ v->meta_row_height_chroma[k] * LineTime / v->VRatioChroma[k]);
}
} else {
- if (GPUVMEnable == true && DCCEnable != true) {
- min_row_time = dpte_row_height * LineTime / VRatio;
- } else if (GPUVMEnable != true && DCCEnable == true) {
- min_row_time = meta_row_height * LineTime / VRatio;
+ if (v->GPUVMEnable == true && v->DCCEnable[k] != true) {
+ min_row_time = v->dpte_row_height[k] * LineTime / v->VRatio[k];
+ } else if (v->GPUVMEnable != true && v->DCCEnable[k] == true) {
+ min_row_time = v->meta_row_height[k] * LineTime / v->VRatio[k];
} else {
- min_row_time = dml_min(dpte_row_height * LineTime / VRatio, meta_row_height * LineTime / VRatio);
+ min_row_time = dml_min(v->dpte_row_height[k] * LineTime / v->VRatio[k], v->meta_row_height[k] * LineTime / v->VRatio[k]);
}
}
- if (*DestinationLinesToRequestVMInImmediateFlip >= 32 || *DestinationLinesToRequestRowInImmediateFlip >= 16
+ if (v->DestinationLinesToRequestVMInImmediateFlip[k] >= 32 || v->DestinationLinesToRequestRowInImmediateFlip[k] >= 16
|| TimeForFetchingMetaPTEImmediateFlip + 2 * TimeForFetchingRowInVBlankImmediateFlip > min_row_time) {
- *ImmediateFlipSupportedForPipe = false;
+ v->ImmediateFlipSupportedForPipe[k] = false;
} else {
- *ImmediateFlipSupportedForPipe = true;
+ v->ImmediateFlipSupportedForPipe[k] = true;
}
#ifdef __DML_VBA_DEBUG__
- dml_print("DML::%s: DestinationLinesToRequestVMInImmediateFlip = %f\n", __func__, *DestinationLinesToRequestVMInImmediateFlip);
- dml_print("DML::%s: DestinationLinesToRequestRowInImmediateFlip = %f\n", __func__, *DestinationLinesToRequestRowInImmediateFlip);
+ dml_print("DML::%s: DestinationLinesToRequestVMInImmediateFlip = %f\n", __func__, v->DestinationLinesToRequestVMInImmediateFlip[k]);
+ dml_print("DML::%s: DestinationLinesToRequestRowInImmediateFlip = %f\n", __func__, v->DestinationLinesToRequestRowInImmediateFlip[k]);
dml_print("DML::%s: TimeForFetchingMetaPTEImmediateFlip = %f\n", __func__, TimeForFetchingMetaPTEImmediateFlip);
dml_print("DML::%s: TimeForFetchingRowInVBlankImmediateFlip = %f\n", __func__, TimeForFetchingRowInVBlankImmediateFlip);
dml_print("DML::%s: min_row_time = %f\n", __func__, min_row_time);
- dml_print("DML::%s: ImmediateFlipSupportedForPipe = %d\n", __func__, *ImmediateFlipSupportedForPipe);
+ dml_print("DML::%s: ImmediateFlipSupportedForPipe = %d\n", __func__, v->ImmediateFlipSupportedForPipe[k]);
#endif
}
@@ -5405,33 +5347,13 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
for (k = 0; k < v->NumberOfActivePlanes; k++) {
CalculateFlipSchedule(
mode_lib,
+ k,
HostVMInefficiencyFactor,
v->ExtraLatency,
v->UrgLatency[i],
- v->GPUVMMaxPageTableLevels,
- v->HostVMEnable,
- v->HostVMMaxNonCachedPageTableLevels,
- v->GPUVMEnable,
- v->HostVMMinPageSize,
v->PDEAndMetaPTEBytesPerFrame[i][j][k],
v->MetaRowBytes[i][j][k],
- v->DPTEBytesPerRow[i][j][k],
- v->BandwidthAvailableForImmediateFlip,
- v->TotImmediateFlipBytes,
- v->SourcePixelFormat[k],
- v->HTotal[k] / v->PixelClock[k],
- v->VRatio[k],
- v->VRatioChroma[k],
- v->Tno_bw[k],
- v->DCCEnable[k],
- v->dpte_row_height[k],
- v->meta_row_height[k],
- v->dpte_row_height_chroma[k],
- v->meta_row_height_chroma[k],
- &v->DestinationLinesToRequestVMInImmediateFlip[k],
- &v->DestinationLinesToRequestRowInImmediateFlip[k],
- &v->final_flip_bw[k],
- &v->ImmediateFlipSupportedForPipe[k]);
+ v->DPTEBytesPerRow[i][j][k]);
}
v->total_dcn_read_bw_with_flip = 0.0;
for (k = 0; k < v->NumberOfActivePlanes; k++) {
--
2.35.1
^ permalink raw reply related [flat|nested] 4+ messages in thread