rs600_mc_wreg     124 drivers/gpu/drm/radeon/radeon_asic.c 		rdev->mc_wreg = &rs600_mc_wreg;
rs600_mc_wreg     242 drivers/gpu/drm/radeon/radeon_asic.h void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);