amdgpu_mm_rdoorbell  283 drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index);
amdgpu_mm_rdoorbell  288 drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index))