Commit 86e4863e authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amd/display: reduce stack for dml32_CalculatePrefetchSchedule 



Move stack variables to dummy structure.

Reviewed-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
parent 3c3abac6

drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c

+4 −1
Original line number Diff line number Diff line
@@ -757,7 +757,9 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman 
			v->dummy_vars.DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.myPipe.BytePerPixelY = v->BytePerPixelY[k];

			v->dummy_vars.DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.myPipe.BytePerPixelC = v->BytePerPixelC[k];

			v->dummy_vars.DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.myPipe.ProgressiveToInterlaceUnitInOPP = mode_lib->vba.ProgressiveToInterlaceUnitInOPP;

			v->ErrorResult[k] = dml32_CalculatePrefetchSchedule(v->dummy_vars.DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.HostVMInefficiencyFactor,

			v->ErrorResult[k] = dml32_CalculatePrefetchSchedule(

					&v->dummy_vars.dml32_CalculatePrefetchSchedule,

					v->dummy_vars.DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.HostVMInefficiencyFactor,

					&v->dummy_vars.DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.myPipe, v->DSCDelay[k],

					mode_lib->vba.DPPCLKDelaySubtotal + mode_lib->vba.DPPCLKDelayCNVCFormater,

					mode_lib->vba.DPPCLKDelaySCL,
@@ -3195,6 +3197,7 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l 


					mode_lib->vba.NoTimeForPrefetch[i][j][k] =

						dml32_CalculatePrefetchSchedule(

							&v->dummy_vars.dml32_CalculatePrefetchSchedule,

							v->dummy_vars.dml32_ModeSupportAndSystemConfigurationFull.HostVMInefficiencyFactor,

							&v->dummy_vars.dml32_ModeSupportAndSystemConfigurationFull.myPipe,

							mode_lib->vba.DSCDelayPerState[i][k],

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

+184 −210

File changed.

Preview size limit exceeded, changes collapsed.

drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.h

+1 −0
Original line number Diff line number Diff line
@@ -715,6 +715,7 @@ double dml32_CalculateExtraLatency( 
		unsigned int HostVMMaxNonCachedPageTableLevels);



bool dml32_CalculatePrefetchSchedule(

		struct dml32_CalculatePrefetchSchedule *st_vars,

		double HostVMInefficiencyFactor,

		DmlPipe *myPipe,

		unsigned int DSCDelay,

drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.h

+38 −0
Original line number Diff line number Diff line
@@ -247,6 +247,43 @@ struct dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport { 
	unsigned int LBLatencyHidingSourceLinesC[DC__NUM_DPP__MAX];

};



struct dml32_CalculatePrefetchSchedule {

	unsigned int DPPCycles, DISPCLKCycles;

	double DSTTotalPixelsAfterScaler;

	double LineTime;

	double dst_y_prefetch_equ;

	double prefetch_bw_oto;

	double Tvm_oto;

	double Tr0_oto;

	double Tvm_oto_lines;

	double Tr0_oto_lines;

	double dst_y_prefetch_oto;

	double TimeForFetchingMetaPTE;

	double TimeForFetchingRowInVBlank;

	double LinesToRequestPrefetchPixelData;

	unsigned int HostVMDynamicLevelsTrips;

	double trip_to_mem;

	double Tvm_trips;

	double Tr0_trips;

	double Tvm_trips_rounded;

	double Tr0_trips_rounded;

	double Lsw_oto;

	double Tpre_rounded;

	double prefetch_bw_equ;

	double Tvm_equ;

	double Tr0_equ;

	double Tdmbf;

	double Tdmec;

	double Tdmsks;

	double prefetch_sw_bytes;

	double bytes_pp;

	double dep_bytes;

	unsigned int max_vratio_pre;

	double min_Lsw;

	double Tsw_est1;

	double Tsw_est3;

};



struct DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation {

	unsigned int dummy_integer_array[2][DC__NUM_DPP__MAX];

	double dummy_single_array[2][DC__NUM_DPP__MAX];
@@ -321,6 +358,7 @@ struct dummy_vars { 
	struct dml32_CalculateSwathAndDETConfiguration dml32_CalculateSwathAndDETConfiguration;

	struct dml32_CalculateVMRowAndSwath dml32_CalculateVMRowAndSwath;

	struct dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport;

	struct dml32_CalculatePrefetchSchedule dml32_CalculatePrefetchSchedule;

};



struct vba_vars_st {