This is a note to let you know that I've just added the patch titled
drm/amdgpu: add lock in amdgpu_gart_invalidate_tlb
to the 6.10-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-add-lock-in-amdgpu_gart_invalidate_tlb.patch
and it can be found in the queue-6.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 35934f158a5c0b235914534fd2c99527a59e6d98
Author: Yunxiang Li <Yunxiang.Li@xxxxxxx>
Date: Fri May 24 17:11:30 2024 -0400
drm/amdgpu: add lock in amdgpu_gart_invalidate_tlb
[ Upstream commit 18f2525d31401e5142db95ff3a6ec0f4147be818 ]
We need to take the reset domain lock before flush hdp. We can't put the
lock inside amdgpu_device_flush_hdp itself because it is used during
reset where we already take the write side lock.
Signed-off-by: Yunxiang Li <Yunxiang.Li@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index c623e23049d1..a6ddffbf8b4d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -34,6 +34,7 @@
#include <asm/set_memory.h>
#endif
#include "amdgpu.h"
+#include "amdgpu_reset.h"
#include <drm/drm_drv.h>
#include <drm/ttm/ttm_tt.h>
@@ -408,7 +409,10 @@ void amdgpu_gart_invalidate_tlb(struct amdgpu_device *adev)
return;
mb();
- amdgpu_device_flush_hdp(adev, NULL);
+ if (down_read_trylock(&adev->reset_domain->sem)) {
+ amdgpu_device_flush_hdp(adev, NULL);
+ up_read(&adev->reset_domain->sem);
+ }
for_each_set_bit(i, adev->vmhubs_mask, AMDGPU_MAX_VMHUBS)
amdgpu_gmc_flush_gpu_tlb(adev, 0, i, 0);
}
