This is a note to let you know that I've just added the patch titled
drm/amdgpu: Fix for BO move issue
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-fix-for-bo-move-issue.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8273b4048664fff356fd10059033f0e2f5a422a1 Mon Sep 17 00:00:00 2001
From: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@xxxxxxx>
Date: Tue, 18 Oct 2022 07:08:38 -0700
Subject: drm/amdgpu: Fix for BO move issue
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From: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@xxxxxxx>
commit 8273b4048664fff356fd10059033f0e2f5a422a1 upstream.
A user reported a bug on CAPE VERDE system where uvd_v3_1
IP component failed to initialize as there is an issue with
BO move code from one memory to other.
In function amdgpu_mem_visible() called by amdgpu_bo_move(),
when there are no blocks to compare or if we have a single
block then break the loop.
Fixes: 312b4dc11d4f ("drm/amdgpu: Fix VRAM BO swap issue")
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: "Limonciello, Mario" <Mario.Limonciello@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -439,6 +439,9 @@ static bool amdgpu_mem_visible(struct am
while (cursor.remaining) {
amdgpu_res_next(&cursor, cursor.size);
+ if (!cursor.remaining)
+ break;
+
/* ttm_resource_ioremap only supports contiguous memory */
if (end != cursor.start)
return false;
Patches currently in stable-queue which might be from Arunpravin.PaneerSelvam@xxxxxxx are
queue-6.0/drm-amdgpu-fix-vram-bo-swap-issue.patch
queue-6.0/drm-amdgpu-fix-for-bo-move-issue.patch
