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FAILED: Patch "drm/amd/display: Fix DML2 watermark calculation" failed to apply to 5.4-stable tree

PATCH Sasha Levin 1 participant 1 message Mar 27, 2024

Subsystems (4)
Stable branch DRM drivers Radeon and amdgpu DRM drivers AMD display core
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Sasha Levin

author maintainer
#0 lore raw

The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

From 2254ab45dab22a18fdd29fe0e471706872c00093 Mon Sep 17 00:00:00 2001
From: Ovidiu Bunea <[email protected]>
Date: Mon, 18 Dec 2023 21:40:45 -0500
Subject: [PATCH] drm/amd/display: Fix DML2 watermark calculation

[Why]
core_mode_programming in DML2 should output watermark calculations to locals, but it incorrectly uses mode_lib

[How]
update code to match HW DML2

Cc Mario Limonciello <[email protected]>
Cc Alex Deucher <[email protected]>
Cc [email protected]
Reviewed-by Charlene Liu <[email protected]>
Acked-by Alex Hung <[email protected]>
Signed-off-by Ovidiu Bunea <[email protected]>
Tested-by Daniel Wheeler <[email protected]>
Signed-off-by Alex Deucher <[email protected]>
---
 .../drm/amd/display/dc/dml2/display_mode_core.c    | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)
drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c +7 -7
index a6b938a12de13..9be5ebf3a8c0b 100644
@@ -9446,13 +9446,13 @@ void dml_core_mode_programming(struct display_mode_lib_st *mode_lib, const struc
 		CalculateWatermarks_params->CompressedBufferSizeInkByte = locals->CompressedBufferSizeInkByte;
 
 		// Output
-		CalculateWatermarks_params->Watermark = &s->dummy_watermark; // Watermarks *Watermark
-		CalculateWatermarks_params->DRAMClockChangeSupport = &mode_lib->ms.support.DRAMClockChangeSupport[0];
-		CalculateWatermarks_params->MaxActiveDRAMClockChangeLatencySupported = &s->dummy_single_array[0][0]; // dml_float_t *MaxActiveDRAMClockChangeLatencySupported[]
-		CalculateWatermarks_params->SubViewportLinesNeededInMALL = &mode_lib->ms.SubViewportLinesNeededInMALL[j]; // dml_uint_t SubViewportLinesNeededInMALL[]
-		CalculateWatermarks_params->FCLKChangeSupport = &mode_lib->ms.support.FCLKChangeSupport[0];
-		CalculateWatermarks_params->MaxActiveFCLKChangeLatencySupported = &s->dummy_single[0]; // dml_float_t *MaxActiveFCLKChangeLatencySupported
-		CalculateWatermarks_params->USRRetrainingSupport = &mode_lib->ms.support.USRRetrainingSupport[0];
+		CalculateWatermarks_params->Watermark = &locals->Watermark; // Watermarks *Watermark
+		CalculateWatermarks_params->DRAMClockChangeSupport = &locals->DRAMClockChangeSupport;
+		CalculateWatermarks_params->MaxActiveDRAMClockChangeLatencySupported = locals->MaxActiveDRAMClockChangeLatencySupported; // dml_float_t *MaxActiveDRAMClockChangeLatencySupported[]
+		CalculateWatermarks_params->SubViewportLinesNeededInMALL = locals->SubViewportLinesNeededInMALL; // dml_uint_t SubViewportLinesNeededInMALL[]
+		CalculateWatermarks_params->FCLKChangeSupport = &locals->FCLKChangeSupport;
+		CalculateWatermarks_params->MaxActiveFCLKChangeLatencySupported = &locals->MaxActiveFCLKChangeLatencySupported; // dml_float_t *MaxActiveFCLKChangeLatencySupported
+		CalculateWatermarks_params->USRRetrainingSupport = &locals->USRRetrainingSupport;
 
 		CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport(
 			&mode_lib->scratch,
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