cik_gfx_set_wptr 2040 drivers/gpu/drm/radeon/radeon_asic.c .set_wptr = &cik_gfx_set_wptr, cik_gfx_set_wptr 855 drivers/gpu/drm/radeon/radeon_asic.h void cik_gfx_set_wptr(struct radeon_device *rdev,