linux-kernel - [PATCH AUTOSEL 4.19 21/23] drm/amd/display: make flip_timestamp_in

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Message-ID: <20240122151823.997644-21-sashal@kernel.org>
Date: Mon, 22 Jan 2024 10:18:01 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Josip Pavic <josip.pavic@....com>,
	Aric Cyr <aric.cyr@....com>,
	Wayne Lin <wayne.lin@....com>,
	Daniel Wheeler <daniel.wheeler@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Sasha Levin <sashal@...nel.org>,
	harry.wentland@....com,
	sunpeng.li@....com,
	Rodrigo.Siqueira@....com,
	christian.koenig@....com,
	Xinhui.Pan@....com,
	airlied@...il.com,
	daniel@...ll.ch,
	wenjing.liu@....com,
	qingqing.zhuo@....com,
	mario.limonciello@....com,
	hamza.mahfooz@....com,
	aurabindo.pillai@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 4.19 21/23] drm/amd/display: make flip_timestamp_in_us a 64-bit variable

From: Josip Pavic <josip.pavic@....com>

[ Upstream commit 6fb12518ca58412dc51054e2a7400afb41328d85 ]

[Why]
This variable currently overflows after about 71 minutes. This doesn't
cause any known functional issues but it does make debugging more
difficult.

[How]
Make it a 64-bit variable.

Reviewed-by: Aric Cyr <aric.cyr@....com>
Acked-by: Wayne Lin <wayne.lin@....com>
Signed-off-by: Josip Pavic <josip.pavic@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/display/dc/dc_hw_types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
index b789cb2b354b..c96ff10365d2 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h
@@ -357,7 +357,7 @@ union dc_tiling_info {
 	} gfx8;
 
 	struct {
-		unsigned int num_pipes;
+		unsigned long long num_pipes;
 		unsigned int num_banks;
 		unsigned int pipe_interleave;
 		unsigned int num_shader_engines;
-- 
2.43.0