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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Aric Cyr <aric.cyr@amd.com>,
	Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>,
	Daniel Wheeler <daniel.wheeler@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>,
	Sasha Levin <sashal@kernel.org>,
	harry.wentland@amd.com, sunpeng.li@amd.com,
	christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com,
	daniel@ffwll.ch, dillon.varone@amd.com, aurabindo.pillai@amd.com,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 6.8 54/98] drm/amd/display: Fix nanosec stat overflow
Date: Fri, 29 Mar 2024 08:37:25 -0400	[thread overview]
Message-ID: <20240329123919.3087149-54-sashal@kernel.org> (raw)
In-Reply-To: <20240329123919.3087149-1-sashal@kernel.org>

From: Aric Cyr <aric.cyr@amd.com>

[ Upstream commit 14d68acfd04b39f34eea7bea65dda652e6db5bf6 ]

[Why]
Nanosec stats can overflow on long running systems potentially causing
statistic logging issues.

[How]
Use 64bit types for nanosec stats to ensure no overflow.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/modules/inc/mod_stats.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/modules/inc/mod_stats.h b/drivers/gpu/drm/amd/display/modules/inc/mod_stats.h
index 5960dd760e91c..8ce6c22e5d041 100644
--- a/drivers/gpu/drm/amd/display/modules/inc/mod_stats.h
+++ b/drivers/gpu/drm/amd/display/modules/inc/mod_stats.h
@@ -57,10 +57,10 @@ void mod_stats_update_event(struct mod_stats *mod_stats,
 		unsigned int length);
 
 void mod_stats_update_flip(struct mod_stats *mod_stats,
-		unsigned long timestamp_in_ns);
+		unsigned long long timestamp_in_ns);
 
 void mod_stats_update_vupdate(struct mod_stats *mod_stats,
-		unsigned long timestamp_in_ns);
+		unsigned long long timestamp_in_ns);
 
 void mod_stats_update_freesync(struct mod_stats *mod_stats,
 		unsigned int v_total_min,
-- 
2.43.0


  parent reply	other threads:[~2024-03-29 12:43 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20240329123919.3087149-1-sashal@kernel.org>
2024-03-29 12:36 ` [PATCH AUTOSEL 6.8 03/98] drm/amdgpu: Skip do PCI error slot reset during RAS recovery Sasha Levin
2024-03-29 12:36 ` [PATCH AUTOSEL 6.8 09/98] drm/amd/display: increased min_dcfclk_mhz and min_fclk_mhz Sasha Levin
2024-03-29 12:36 ` [PATCH AUTOSEL 6.8 10/98] drm/amd/display: For FPO and SubVP/DRR configs program vmin/max sel Sasha Levin
2024-03-29 12:36 ` [PATCH AUTOSEL 6.8 24/98] drm/amd/display: Disable idle reallow as part of command/gpint execution Sasha Levin
2024-03-29 12:37 ` Sasha Levin [this message]
2024-03-29 12:37 ` [PATCH AUTOSEL 6.8 62/98] drm/amd/amdgpu: Fix potential ioremap() memory leaks in amdgpu_device_init() Sasha Levin

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