drm/amdgpu: Make pin_size values atomic

Concurrent execution of the non-atomic arithmetic could result in
completely bogus values.

v2:
* Rebased on v2 of the previous patch

Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/106872
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 51b16de008bb..53435da158c2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1589,9 +1589,9 @@ struct amdgpu_device {
         DECLARE_HASHTABLE(mn_hash, 7);
 
         /* tracking pinned memory */
-        u64 vram_pin_size;
-        u64 visible_pin_size;
-        u64 gart_pin_size;
+        atomic64_t vram_pin_size;
+        atomic64_t visible_pin_size;
+        atomic64_t gart_pin_size;
 
         /* amdkfd interface */
         struct kfd_dev          *kfd;