[PATCH 05/16] drm/amd/display: Remove VStartupMargin and FirstMainPlane VBA variables

[Maíra Canal]

The variables VStartupMargin and FirstMainPlane from the struct
vba_vars_st are only used on assignments, so there values are not used
on code. So, remove the variables entries from the struct vba_vars_st.

Signed-off-by: Maíra Canal <mairacanal at riseup.net>
---
 .../display/dc/dml/dcn20/display_mode_vba_20.c  | 14 +++-----------
 .../dc/dml/dcn20/display_mode_vba_20v2.c        | 14 +++-----------
 .../display/dc/dml/dcn30/display_mode_vba_30.c  | 17 ++++++-----------
 .../drm/amd/display/dc/dml/display_mode_vba.h   |  2 --
 4 files changed, 12 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
index d86d5c346e42..1424aa7a5018 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
@@ -2662,19 +2662,12 @@ static void dml20_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPer
 		}
 	}
 	{
-		unsigned int VStartupMargin = 0;
 		bool FirstMainPlane = true;
 
 		for (k = 0; k < mode_lib->vba.NumberOfActivePlanes; ++k) {
-			if (mode_lib->vba.BlendingAndTiming[k] == k) {
-				unsigned int Margin = (mode_lib->vba.MaxVStartupLines[k] - mode_lib->vba.VStartup[k])
-						* mode_lib->vba.HTotal[k] / mode_lib->vba.PixelClock[k];
-
-				if (FirstMainPlane) {
-					VStartupMargin = Margin;
-					FirstMainPlane = false;
-				} else
-					VStartupMargin = dml_min(VStartupMargin, Margin);
+			if (mode_lib->vba.BlendingAndTiming[k] == k && FirstMainPlane) {
+				FirstMainPlane = false;
+			}
 		}
 
 		if (mode_lib->vba.UseMaximumVStartup) {
@@ -2685,7 +2678,6 @@ static void dml20_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPer
 		}
 	}
 }
-}
 
 static void dml20_DisplayPipeConfiguration(struct display_mode_lib *mode_lib)
 {
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
index effd02574a0e..03613dbb3e61 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
@@ -2735,19 +2735,12 @@ static void dml20v2_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndP
 		}
 	}
 	{
-		unsigned int VStartupMargin = 0;
 		bool FirstMainPlane = true;
 
 		for (k = 0; k < mode_lib->vba.NumberOfActivePlanes; ++k) {
-			if (mode_lib->vba.BlendingAndTiming[k] == k) {
-				unsigned int Margin = (mode_lib->vba.MaxVStartupLines[k] - mode_lib->vba.VStartup[k])
-						* mode_lib->vba.HTotal[k] / mode_lib->vba.PixelClock[k];
-
-				if (FirstMainPlane) {
-					VStartupMargin = Margin;
-					FirstMainPlane = false;
-				} else
-					VStartupMargin = dml_min(VStartupMargin, Margin);
+			if (mode_lib->vba.BlendingAndTiming[k] == k && FirstMainPlane) {
+				FirstMainPlane = false;
+			}
 		}
 
 		if (mode_lib->vba.UseMaximumVStartup) {
@@ -2758,7 +2751,6 @@ static void dml20v2_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndP
 		}
 	}
 }
-}
 
 static void dml20v2_DisplayPipeConfiguration(struct display_mode_lib *mode_lib)
 {
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 fe7fcb0d7b1f..caa3a9c598ce 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
@@ -3028,17 +3028,12 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman
 	}
 
 	// VStartup Margin
-	v->VStartupMargin = 0;
-	v->FirstMainPlane = true;
-	for (k = 0; k < v->NumberOfActivePlanes; ++k) {
-		if (v->BlendingAndTiming[k] == k) {
-			double margin = (v->MaxVStartupLines[k] - v->VStartup[k]) * v->HTotal[k]
-					/ v->PixelClock[k];
-			if (v->FirstMainPlane == true) {
-				v->VStartupMargin = margin;
-				v->FirstMainPlane = false;
-			} else {
-				v->VStartupMargin = dml_min(v->VStartupMargin, margin);
+	{
+		bool FirstMainPlane = true;
+
+		for (k = 0; k < v->NumberOfActivePlanes; ++k) {
+			if (v->BlendingAndTiming[k] == k && FirstMainPlane) {
+				FirstMainPlane = false;
 			}
 		}
 	}
diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.h b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.h
index f03cf9cf9096..841a05bea57e 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.h
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.h
@@ -1106,7 +1106,6 @@ struct vba_vars_st {
 	double TimePerChromaMetaChunkFlip[DC__NUM_DPP__MAX];
 	unsigned int DCCCMaxUncompressedBlock[DC__NUM_DPP__MAX];
 	unsigned int DCCCMaxCompressedBlock[DC__NUM_DPP__MAX];
-	double VStartupMargin;
 	bool NotEnoughTimeForDynamicMetadata[DC__NUM_DPP__MAX];
 
 	/* Missing from VBA */
@@ -1137,7 +1136,6 @@ struct vba_vars_st {
 	double MinUrgentLatencySupportUs;
 	double MinFullDETBufferingTime;
 	double AverageReadBandwidthGBytePerSecond;
-	bool   FirstMainPlane;
 
 	unsigned int ViewportWidthChroma[DC__NUM_DPP__MAX];
 	unsigned int ViewportHeightChroma[DC__NUM_DPP__MAX];
-- 
2.37.1