Symbol: WREG32
sys/dev/pci/drm/amd/amdgpu/amdgpu.h
1478
#define WREG32(reg, v) amdgpu_device_wreg(adev, (reg), (v), 0)
sys/dev/pci/drm/radeon/radeon.h
2554
#define WREG32(reg, v) r100_mm_wreg(rdev, (reg), (v), false)