cik_sdma_ib_test 2065 drivers/gpu/drm/radeon/radeon_asic.c .ib_test = &cik_sdma_ib_test, cik_sdma_ib_test 805 drivers/gpu/drm/radeon/radeon_asic.h int cik_sdma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring);