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From: Tom Rix <trix@redhat.com>
To: harry.wentland@amd.com, sunpeng.li@amd.com,
	Rodrigo.Siqueira@amd.com, alexander.deucher@amd.com,
	christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@linux.ie,
	daniel@ffwll.ch, Nevenko.Stupar@amd.com, Pavle.Kotarac@amd.com,
	aric.cyr@amd.com
Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, Tom Rix <trix@redhat.com>
Subject: [PATCH] drm/amd/display: remove redundant CalculateRemoteSurfaceFlipDelay's
Date: Mon, 19 Sep 2022 13:27:20 -0400	[thread overview]
Message-ID: <20220919172720.3496405-1-trix@redhat.com> (raw)

There are several copies of CalculateRemoteSurfaceFlipDelay.
Reduce to one instance.

Signed-off-by: Tom Rix <trix@redhat.com>
---
 .../dc/dml/dcn20/display_mode_vba_20.c        |  4 +-
 .../dc/dml/dcn20/display_mode_vba_20v2.c      | 40 +------------------
 .../dc/dml/dcn21/display_mode_vba_21.c        | 40 +------------------
 3 files changed, 4 insertions(+), 80 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 4ca080950924..8e5d58336bc5 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
@@ -158,7 +158,7 @@ double CalculateTWait(
 		double DRAMClockChangeLatency,
 		double UrgentLatency,
 		double SREnterPlusExitTime);
-static double CalculateRemoteSurfaceFlipDelay(
+double CalculateRemoteSurfaceFlipDelay(
 		struct display_mode_lib *mode_lib,
 		double VRatio,
 		double SwathWidth,
@@ -2909,7 +2909,7 @@ double CalculateTWait(
 	}
 }
 
-static double CalculateRemoteSurfaceFlipDelay(
+double CalculateRemoteSurfaceFlipDelay(
 		struct display_mode_lib *mode_lib,
 		double VRatio,
 		double SwathWidth,
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 2b4dcae4e432..e9ebc81adc71 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
@@ -182,7 +182,7 @@ double CalculateTWait(
 		double DRAMClockChangeLatency,
 		double UrgentLatency,
 		double SREnterPlusExitTime);
-static double CalculateRemoteSurfaceFlipDelay(
+double CalculateRemoteSurfaceFlipDelay(
 		struct display_mode_lib *mode_lib,
 		double VRatio,
 		double SwathWidth,
@@ -2967,44 +2967,6 @@ static void dml20v2_DisplayPipeConfiguration(struct display_mode_lib *mode_lib)
 	}
 }
 
-static double CalculateRemoteSurfaceFlipDelay(
-		struct display_mode_lib *mode_lib,
-		double VRatio,
-		double SwathWidth,
-		double Bpp,
-		double LineTime,
-		double XFCTSlvVupdateOffset,
-		double XFCTSlvVupdateWidth,
-		double XFCTSlvVreadyOffset,
-		double XFCXBUFLatencyTolerance,
-		double XFCFillBWOverhead,
-		double XFCSlvChunkSize,
-		double XFCBusTransportTime,
-		double TCalc,
-		double TWait,
-		double *SrcActiveDrainRate,
-		double *TInitXFill,
-		double *TslvChk)
-{
-	double TSlvSetup, AvgfillRate, result;
-
-	*SrcActiveDrainRate = VRatio * SwathWidth * Bpp / LineTime;
-	TSlvSetup = XFCTSlvVupdateOffset + XFCTSlvVupdateWidth + XFCTSlvVreadyOffset;
-	*TInitXFill = XFCXBUFLatencyTolerance / (1 + XFCFillBWOverhead / 100);
-	AvgfillRate = *SrcActiveDrainRate * (1 + XFCFillBWOverhead / 100);
-	*TslvChk = XFCSlvChunkSize / AvgfillRate;
-	dml_print(
-			"DML::CalculateRemoteSurfaceFlipDelay: SrcActiveDrainRate: %f\n",
-			*SrcActiveDrainRate);
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: TSlvSetup: %f\n", TSlvSetup);
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: TInitXFill: %f\n", *TInitXFill);
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: AvgfillRate: %f\n", AvgfillRate);
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: TslvChk: %f\n", *TslvChk);
-	result = 2 * XFCBusTransportTime + TSlvSetup + TCalc + TWait + *TslvChk + *TInitXFill; // TODO: This doesn't seem to match programming guide
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: RemoteSurfaceFlipDelay: %f\n", result);
-	return result;
-}
-
 static void CalculateActiveRowBandwidth(
 		bool GPUVMEnable,
 		enum source_format_class SourcePixelFormat,
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
index a3ef3638d979..d94aaf899f9b 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
@@ -210,7 +210,7 @@ double CalculateTWait(
 		double DRAMClockChangeLatency,
 		double UrgentLatency,
 		double SREnterPlusExitTime);
-static double CalculateRemoteSurfaceFlipDelay(
+double CalculateRemoteSurfaceFlipDelay(
 		struct display_mode_lib *mode_lib,
 		double VRatio,
 		double SwathWidth,
@@ -2980,44 +2980,6 @@ static void DisplayPipeConfiguration(struct display_mode_lib *mode_lib)
 	}
 }
 
-static double CalculateRemoteSurfaceFlipDelay(
-		struct display_mode_lib *mode_lib,
-		double VRatio,
-		double SwathWidth,
-		double Bpp,
-		double LineTime,
-		double XFCTSlvVupdateOffset,
-		double XFCTSlvVupdateWidth,
-		double XFCTSlvVreadyOffset,
-		double XFCXBUFLatencyTolerance,
-		double XFCFillBWOverhead,
-		double XFCSlvChunkSize,
-		double XFCBusTransportTime,
-		double TCalc,
-		double TWait,
-		double *SrcActiveDrainRate,
-		double *TInitXFill,
-		double *TslvChk)
-{
-	double TSlvSetup, AvgfillRate, result;
-
-	*SrcActiveDrainRate = VRatio * SwathWidth * Bpp / LineTime;
-	TSlvSetup = XFCTSlvVupdateOffset + XFCTSlvVupdateWidth + XFCTSlvVreadyOffset;
-	*TInitXFill = XFCXBUFLatencyTolerance / (1 + XFCFillBWOverhead / 100);
-	AvgfillRate = *SrcActiveDrainRate * (1 + XFCFillBWOverhead / 100);
-	*TslvChk = XFCSlvChunkSize / AvgfillRate;
-	dml_print(
-			"DML::CalculateRemoteSurfaceFlipDelay: SrcActiveDrainRate: %f\n",
-			*SrcActiveDrainRate);
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: TSlvSetup: %f\n", TSlvSetup);
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: TInitXFill: %f\n", *TInitXFill);
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: AvgfillRate: %f\n", AvgfillRate);
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: TslvChk: %f\n", *TslvChk);
-	result = 2 * XFCBusTransportTime + TSlvSetup + TCalc + TWait + *TslvChk + *TInitXFill; // TODO: This doesn't seem to match programming guide
-	dml_print("DML::CalculateRemoteSurfaceFlipDelay: RemoteSurfaceFlipDelay: %f\n", result);
-	return result;
-}
-
 static void CalculateActiveRowBandwidth(
 		bool GPUVMEnable,
 		enum source_format_class SourcePixelFormat,
-- 
2.27.0


             reply	other threads:[~2022-09-19 17:27 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-19 17:27 Tom Rix [this message]
2022-09-19 23:12 ` [PATCH] drm/amd/display: remove redundant CalculateRemoteSurfaceFlipDelay's Maíra Canal

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