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-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c3
-rw-r--r--include/uapi/drm/amdgpu_drm.h1
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index ff1a416a66c9..6f0b26dae3b0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -763,6 +763,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
}
return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
}
+ case AMDGPU_INFO_VRAM_LOST_COUNTER:
+ ui32 = atomic_read(&adev->vram_lost_counter);
+ return copy_to_user(out, &ui32, min(size, 4u)) ? -EFAULT : 0;
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->query);
return -EINVAL;
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index d0a3ea69eab6..ff0181829f3d 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -657,6 +657,7 @@ struct drm_amdgpu_cs_chunk_data {
#define AMDGPU_INFO_SENSOR_VDDGFX 0x7
/* Number of VRAM page faults on CPU access. */
#define AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS 0x1E
+#define AMDGPU_INFO_VRAM_LOST_COUNTER 0x1F
#define AMDGPU_INFO_MMR_SE_INDEX_SHIFT 0
#define AMDGPU_INFO_MMR_SE_INDEX_MASK 0xff