6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yunxiang Li <Yunxiang.Li@xxxxxxx>
[ 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>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index 73b8cca35bab..eace2c9d0c36 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>
@@ -400,7 +401,10 @@ 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);
}
--
2.43.0
