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authorChristian König <christian.koenig@amd.com>2017-10-09 17:53:06 +0200
committerAlex Deucher <alexander.deucher@amd.com>2017-10-19 15:27:05 -0400
commit1f7251b73e08395dbf03602a57ca67cf7da7f9db (patch)
treeb38e541c99491379351c214899e30dfcd84d7127 /drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
parent7a0a48ddf63bc9944b9690c6fa043ea4305f7f79 (diff)
downloadtalos-op-linux-1f7251b73e08395dbf03602a57ca67cf7da7f9db.tar.gz
talos-op-linux-1f7251b73e08395dbf03602a57ca67cf7da7f9db.zip
drm/amdgpu: add VRAM lost query
Allows userspace to figure out if VRAM was lost. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c3
1 files changed, 3 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;
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