Commit c3b3f9ba authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amd/display: reduce stack for dml32_CalculateVMRowAndSwath 



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 bac4b41d

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

+2 −0
Original line number Diff line number Diff line
@@ -461,6 +461,7 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman 
	{



		dml32_CalculateVMRowAndSwath(

				&v->dummy_vars.dml32_CalculateVMRowAndSwath,

				mode_lib->vba.NumberOfActiveSurfaces,

				v->dummy_vars.DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation.SurfaceParameters,

				v->SurfaceSizeInMALL,
@@ -2676,6 +2677,7 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l 


			{

				dml32_CalculateVMRowAndSwath(

						&v->dummy_vars.dml32_CalculateVMRowAndSwath,

						mode_lib->vba.NumberOfActiveSurfaces,

						v->dummy_vars.dml32_ModeSupportAndSystemConfigurationFull.SurfParameters,

						mode_lib->vba.SurfaceSizeInMALL,

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

+48 −62
Original line number Diff line number Diff line
@@ -1867,6 +1867,7 @@ void dml32_CalculateSurfaceSizeInMall( 
} // CalculateSurfaceSizeInMall



void dml32_CalculateVMRowAndSwath(

		struct dml32_CalculateVMRowAndSwath *st_vars,

		unsigned int NumberOfActiveSurfaces,

		DmlPipe myPipe[],

		unsigned int SurfaceSizeInMALL[],
@@ -1932,21 +1933,6 @@ void dml32_CalculateVMRowAndSwath( 
		unsigned int BIGK_FRAGMENT_SIZE[])

{

	unsigned int k;

	unsigned int PTEBufferSizeInRequestsForLuma[DC__NUM_DPP__MAX];

	unsigned int PTEBufferSizeInRequestsForChroma[DC__NUM_DPP__MAX];

	unsigned int PDEAndMetaPTEBytesFrameY;

	unsigned int PDEAndMetaPTEBytesFrameC;

	unsigned int MetaRowByteY[DC__NUM_DPP__MAX];

	unsigned int MetaRowByteC[DC__NUM_DPP__MAX];

	unsigned int PixelPTEBytesPerRowY[DC__NUM_DPP__MAX];

	unsigned int PixelPTEBytesPerRowC[DC__NUM_DPP__MAX];

	unsigned int PixelPTEBytesPerRowY_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int PixelPTEBytesPerRowC_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int dpte_row_width_luma_ub_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int dpte_row_height_luma_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int dpte_row_width_chroma_ub_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int dpte_row_height_chroma_one_row_per_frame[DC__NUM_DPP__MAX];

	bool one_row_per_frame_fits_in_buffer[DC__NUM_DPP__MAX];



	for (k = 0; k < NumberOfActiveSurfaces; ++k) {

		if (HostVMEnable == true) {
@@ -1968,15 +1954,15 @@ void dml32_CalculateVMRowAndSwath( 
				myPipe[k].SourcePixelFormat == dm_rgbe_alpha) {

			if ((myPipe[k].SourcePixelFormat == dm_420_10 || myPipe[k].SourcePixelFormat == dm_420_12) &&

					!IsVertical(myPipe[k].SourceRotation)) {

				PTEBufferSizeInRequestsForLuma[k] =

				st_vars->PTEBufferSizeInRequestsForLuma[k] =

						(PTEBufferSizeInRequestsLuma + PTEBufferSizeInRequestsChroma) / 2;

				PTEBufferSizeInRequestsForChroma[k] = PTEBufferSizeInRequestsForLuma[k];

				st_vars->PTEBufferSizeInRequestsForChroma[k] = st_vars->PTEBufferSizeInRequestsForLuma[k];

			} else {

				PTEBufferSizeInRequestsForLuma[k] = PTEBufferSizeInRequestsLuma;

				PTEBufferSizeInRequestsForChroma[k] = PTEBufferSizeInRequestsChroma;

				st_vars->PTEBufferSizeInRequestsForLuma[k] = PTEBufferSizeInRequestsLuma;

				st_vars->PTEBufferSizeInRequestsForChroma[k] = PTEBufferSizeInRequestsChroma;

			}



			PDEAndMetaPTEBytesFrameC = dml32_CalculateVMAndRowBytes(

			st_vars->PDEAndMetaPTEBytesFrameC = dml32_CalculateVMAndRowBytes(

					myPipe[k].ViewportStationary,

					myPipe[k].DCCEnable,

					myPipe[k].DPPPerSurface,
@@ -1996,21 +1982,21 @@ void dml32_CalculateVMRowAndSwath( 
					GPUVMMaxPageTableLevels,

					GPUVMMinPageSizeKBytes[k],

					HostVMMinPageSize,

					PTEBufferSizeInRequestsForChroma[k],

					st_vars->PTEBufferSizeInRequestsForChroma[k],

					myPipe[k].PitchC,

					myPipe[k].DCCMetaPitchC,

					myPipe[k].BlockWidthC,

					myPipe[k].BlockHeightC,



					/* Output */

					&MetaRowByteC[k],

					&PixelPTEBytesPerRowC[k],

					&st_vars->MetaRowByteC[k],

					&st_vars->PixelPTEBytesPerRowC[k],

					&dpte_row_width_chroma_ub[k],

					&dpte_row_height_chroma[k],

					&dpte_row_height_linear_chroma[k],

					&PixelPTEBytesPerRowC_one_row_per_frame[k],

					&dpte_row_width_chroma_ub_one_row_per_frame[k],

					&dpte_row_height_chroma_one_row_per_frame[k],

					&st_vars->PixelPTEBytesPerRowC_one_row_per_frame[k],

					&st_vars->dpte_row_width_chroma_ub_one_row_per_frame[k],

					&st_vars->dpte_row_height_chroma_one_row_per_frame[k],

					&meta_req_width_chroma[k],

					&meta_req_height_chroma[k],

					&meta_row_width_chroma[k],
@@ -2038,19 +2024,19 @@ void dml32_CalculateVMRowAndSwath( 
					&VInitPreFillC[k],

					&MaxNumSwathC[k]);

		} else {

			PTEBufferSizeInRequestsForLuma[k] = PTEBufferSizeInRequestsLuma + PTEBufferSizeInRequestsChroma;

			PTEBufferSizeInRequestsForChroma[k] = 0;

			PixelPTEBytesPerRowC[k] = 0;

			PDEAndMetaPTEBytesFrameC = 0;

			MetaRowByteC[k] = 0;

			st_vars->PTEBufferSizeInRequestsForLuma[k] = PTEBufferSizeInRequestsLuma + PTEBufferSizeInRequestsChroma;

			st_vars->PTEBufferSizeInRequestsForChroma[k] = 0;

			st_vars->PixelPTEBytesPerRowC[k] = 0;

			st_vars->PDEAndMetaPTEBytesFrameC = 0;

			st_vars->MetaRowByteC[k] = 0;

			MaxNumSwathC[k] = 0;

			PrefetchSourceLinesC[k] = 0;

			dpte_row_height_chroma_one_row_per_frame[k] = 0;

			dpte_row_width_chroma_ub_one_row_per_frame[k] = 0;

			PixelPTEBytesPerRowC_one_row_per_frame[k] = 0;

			st_vars->dpte_row_height_chroma_one_row_per_frame[k] = 0;

			st_vars->dpte_row_width_chroma_ub_one_row_per_frame[k] = 0;

			st_vars->PixelPTEBytesPerRowC_one_row_per_frame[k] = 0;

		}



		PDEAndMetaPTEBytesFrameY = dml32_CalculateVMAndRowBytes(

		st_vars->PDEAndMetaPTEBytesFrameY = dml32_CalculateVMAndRowBytes(

				myPipe[k].ViewportStationary,

				myPipe[k].DCCEnable,

				myPipe[k].DPPPerSurface,
@@ -2070,21 +2056,21 @@ void dml32_CalculateVMRowAndSwath( 
				GPUVMMaxPageTableLevels,

				GPUVMMinPageSizeKBytes[k],

				HostVMMinPageSize,

				PTEBufferSizeInRequestsForLuma[k],

				st_vars->PTEBufferSizeInRequestsForLuma[k],

				myPipe[k].PitchY,

				myPipe[k].DCCMetaPitchY,

				myPipe[k].BlockWidthY,

				myPipe[k].BlockHeightY,



				/* Output */

				&MetaRowByteY[k],

				&PixelPTEBytesPerRowY[k],

				&st_vars->MetaRowByteY[k],

				&st_vars->PixelPTEBytesPerRowY[k],

				&dpte_row_width_luma_ub[k],

				&dpte_row_height_luma[k],

				&dpte_row_height_linear_luma[k],

				&PixelPTEBytesPerRowY_one_row_per_frame[k],

				&dpte_row_width_luma_ub_one_row_per_frame[k],

				&dpte_row_height_luma_one_row_per_frame[k],

				&st_vars->PixelPTEBytesPerRowY_one_row_per_frame[k],

				&st_vars->dpte_row_width_luma_ub_one_row_per_frame[k],

				&st_vars->dpte_row_height_luma_one_row_per_frame[k],

				&meta_req_width[k],

				&meta_req_height[k],

				&meta_row_width[k],
@@ -2112,19 +2098,19 @@ void dml32_CalculateVMRowAndSwath( 
				&VInitPreFillY[k],

				&MaxNumSwathY[k]);



		PDEAndMetaPTEBytesFrame[k] = PDEAndMetaPTEBytesFrameY + PDEAndMetaPTEBytesFrameC;

		MetaRowByte[k] = MetaRowByteY[k] + MetaRowByteC[k];

		PDEAndMetaPTEBytesFrame[k] = st_vars->PDEAndMetaPTEBytesFrameY + st_vars->PDEAndMetaPTEBytesFrameC;

		MetaRowByte[k] = st_vars->MetaRowByteY[k] + st_vars->MetaRowByteC[k];



		if (PixelPTEBytesPerRowY[k] <= 64 * PTEBufferSizeInRequestsForLuma[k] &&

				PixelPTEBytesPerRowC[k] <= 64 * PTEBufferSizeInRequestsForChroma[k]) {

		if (st_vars->PixelPTEBytesPerRowY[k] <= 64 * st_vars->PTEBufferSizeInRequestsForLuma[k] &&

				st_vars->PixelPTEBytesPerRowC[k] <= 64 * st_vars->PTEBufferSizeInRequestsForChroma[k]) {

			PTEBufferSizeNotExceeded[k] = true;

		} else {

			PTEBufferSizeNotExceeded[k] = false;

		}



		one_row_per_frame_fits_in_buffer[k] = (PixelPTEBytesPerRowY_one_row_per_frame[k] <= 64 * 2 *

			PTEBufferSizeInRequestsForLuma[k] &&

			PixelPTEBytesPerRowC_one_row_per_frame[k] <= 64 * 2 * PTEBufferSizeInRequestsForChroma[k]);

		st_vars->one_row_per_frame_fits_in_buffer[k] = (st_vars->PixelPTEBytesPerRowY_one_row_per_frame[k] <= 64 * 2 *

			st_vars->PTEBufferSizeInRequestsForLuma[k] &&

			st_vars->PixelPTEBytesPerRowC_one_row_per_frame[k] <= 64 * 2 * st_vars->PTEBufferSizeInRequestsForChroma[k]);

	}



	dml32_CalculateMALLUseForStaticScreen(
@@ -2132,7 +2118,7 @@ void dml32_CalculateVMRowAndSwath( 
			MALLAllocatedForDCN,

			UseMALLForStaticScreen,   // mode

			SurfaceSizeInMALL,

			one_row_per_frame_fits_in_buffer,

			st_vars->one_row_per_frame_fits_in_buffer,

			/* Output */

			UsesMALLForStaticScreen); // boolen
@@ -2158,13 +2144,13 @@ void dml32_CalculateVMRowAndSwath( 
				!(UseMALLForPStateChange[k] == dm_use_mall_pstate_change_full_frame);



		if (use_one_row_for_frame[k]) {

			dpte_row_height_luma[k] = dpte_row_height_luma_one_row_per_frame[k];

			dpte_row_width_luma_ub[k] = dpte_row_width_luma_ub_one_row_per_frame[k];

			PixelPTEBytesPerRowY[k] = PixelPTEBytesPerRowY_one_row_per_frame[k];

			dpte_row_height_chroma[k] = dpte_row_height_chroma_one_row_per_frame[k];

			dpte_row_width_chroma_ub[k] = dpte_row_width_chroma_ub_one_row_per_frame[k];

			PixelPTEBytesPerRowC[k] = PixelPTEBytesPerRowC_one_row_per_frame[k];

			PTEBufferSizeNotExceeded[k] = one_row_per_frame_fits_in_buffer[k];

			dpte_row_height_luma[k] = st_vars->dpte_row_height_luma_one_row_per_frame[k];

			dpte_row_width_luma_ub[k] = st_vars->dpte_row_width_luma_ub_one_row_per_frame[k];

			st_vars->PixelPTEBytesPerRowY[k] = st_vars->PixelPTEBytesPerRowY_one_row_per_frame[k];

			dpte_row_height_chroma[k] = st_vars->dpte_row_height_chroma_one_row_per_frame[k];

			dpte_row_width_chroma_ub[k] = st_vars->dpte_row_width_chroma_ub_one_row_per_frame[k];

			st_vars->PixelPTEBytesPerRowC[k] = st_vars->PixelPTEBytesPerRowC_one_row_per_frame[k];

			PTEBufferSizeNotExceeded[k] = st_vars->one_row_per_frame_fits_in_buffer[k];

		}



		if (MetaRowByte[k] <= DCCMetaBufferSizeBytes)
@@ -2172,7 +2158,7 @@ void dml32_CalculateVMRowAndSwath( 
		else

			DCCMetaBufferSizeNotExceeded[k] = false;



		PixelPTEBytesPerRow[k] = PixelPTEBytesPerRowY[k] + PixelPTEBytesPerRowC[k];

		PixelPTEBytesPerRow[k] = st_vars->PixelPTEBytesPerRowY[k] + st_vars->PixelPTEBytesPerRowC[k];

		if (use_one_row_for_frame[k])

			PixelPTEBytesPerRow[k] = PixelPTEBytesPerRow[k] / 2;
@@ -2183,11 +2169,11 @@ void dml32_CalculateVMRowAndSwath( 
				myPipe[k].VRatioChroma,

				myPipe[k].DCCEnable,

				myPipe[k].HTotal / myPipe[k].PixelClock,

				MetaRowByteY[k], MetaRowByteC[k],

				st_vars->MetaRowByteY[k], st_vars->MetaRowByteC[k],

				meta_row_height[k],

				meta_row_height_chroma[k],

				PixelPTEBytesPerRowY[k],

				PixelPTEBytesPerRowC[k],

				st_vars->PixelPTEBytesPerRowY[k],

				st_vars->PixelPTEBytesPerRowC[k],

				dpte_row_height_luma[k],

				dpte_row_height_chroma[k],
@@ -2203,12 +2189,12 @@ void dml32_CalculateVMRowAndSwath( 
		dml_print("DML::%s: k=%d, dpte_row_height_luma         = %d\n",  __func__, k, dpte_row_height_luma[k]);

		dml_print("DML::%s: k=%d, dpte_row_width_luma_ub       = %d\n",

				__func__, k, dpte_row_width_luma_ub[k]);

		dml_print("DML::%s: k=%d, PixelPTEBytesPerRowY         = %d\n",  __func__, k, PixelPTEBytesPerRowY[k]);

		dml_print("DML::%s: k=%d, PixelPTEBytesPerRowY         = %d\n",  __func__, k, st_vars->PixelPTEBytesPerRowY[k]);

		dml_print("DML::%s: k=%d, dpte_row_height_chroma       = %d\n",

				__func__, k, dpte_row_height_chroma[k]);

		dml_print("DML::%s: k=%d, dpte_row_width_chroma_ub     = %d\n",

				__func__, k, dpte_row_width_chroma_ub[k]);

		dml_print("DML::%s: k=%d, PixelPTEBytesPerRowC         = %d\n",  __func__, k, PixelPTEBytesPerRowC[k]);

		dml_print("DML::%s: k=%d, PixelPTEBytesPerRowC         = %d\n",  __func__, k, st_vars->PixelPTEBytesPerRowC[k]);

		dml_print("DML::%s: k=%d, PixelPTEBytesPerRow          = %d\n",  __func__, k, PixelPTEBytesPerRow[k]);

		dml_print("DML::%s: k=%d, PTEBufferSizeNotExceeded     = %d\n",

				__func__, k, PTEBufferSizeNotExceeded[k]);

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

+1 −0
Original line number Diff line number Diff line
@@ -362,6 +362,7 @@ void dml32_CalculateSurfaceSizeInMall( 
		bool *ExceededMALLSize);



void dml32_CalculateVMRowAndSwath(

		struct dml32_CalculateVMRowAndSwath *st_vars,

		unsigned int NumberOfActiveSurfaces,

		DmlPipe myPipe[],

		unsigned int SurfaceSizeInMALL[],

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

+19 −0
Original line number Diff line number Diff line
@@ -196,6 +196,24 @@ struct dml32_CalculateSwathAndDETConfiguration { 
	unsigned int DETBufferSizeInKByteForSwathCalculation;

};



struct dml32_CalculateVMRowAndSwath {

	unsigned int PTEBufferSizeInRequestsForLuma[DC__NUM_DPP__MAX];

	unsigned int PTEBufferSizeInRequestsForChroma[DC__NUM_DPP__MAX];

	unsigned int PDEAndMetaPTEBytesFrameY;

	unsigned int PDEAndMetaPTEBytesFrameC;

	unsigned int MetaRowByteY[DC__NUM_DPP__MAX];

	unsigned int MetaRowByteC[DC__NUM_DPP__MAX];

	unsigned int PixelPTEBytesPerRowY[DC__NUM_DPP__MAX];

	unsigned int PixelPTEBytesPerRowC[DC__NUM_DPP__MAX];

	unsigned int PixelPTEBytesPerRowY_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int PixelPTEBytesPerRowC_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int dpte_row_width_luma_ub_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int dpte_row_height_luma_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int dpte_row_width_chroma_ub_one_row_per_frame[DC__NUM_DPP__MAX];

	unsigned int dpte_row_height_chroma_one_row_per_frame[DC__NUM_DPP__MAX];

	bool one_row_per_frame_fits_in_buffer[DC__NUM_DPP__MAX];

};



struct DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation {

	unsigned int dummy_integer_array[2][DC__NUM_DPP__MAX];

	double dummy_single_array[2][DC__NUM_DPP__MAX];
@@ -268,6 +286,7 @@ struct dummy_vars { 
	DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerformanceCalculation;

	struct dml32_ModeSupportAndSystemConfigurationFull dml32_ModeSupportAndSystemConfigurationFull;

	struct dml32_CalculateSwathAndDETConfiguration dml32_CalculateSwathAndDETConfiguration;

	struct dml32_CalculateVMRowAndSwath dml32_CalculateVMRowAndSwath;

};



struct vba_vars_st {