Symbol: RDOORBELL32
drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h
397
#define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index))
drivers/gpu/drm/radeon/radeon.h
2562
#define RDOORBELL32(index) cik_mm_rdoorbell(rdev, (index))