Commit 810b73d1 authored by Michel Dänzer's avatar Michel Dänzer Committed by Alex Deucher
Browse files

drm/radeon: Use write-combined CPU mappings of IBs on >= CIK 



Signed-off-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 1490434f

drivers/gpu/drm/radeon/radeon_ring.c

+16 −4
Original line number Diff line number Diff line
@@ -201,10 +201,22 @@ int radeon_ib_pool_init(struct radeon_device *rdev) 
	if (rdev->ib_pool_ready) {

		return 0;

	}



	if (rdev->family >= CHIP_BONAIRE) {

		r = radeon_sa_bo_manager_init(rdev, &rdev->ring_tmp_bo,

					      RADEON_IB_POOL_SIZE*64*1024,

					      RADEON_GPU_PAGE_SIZE,

					      RADEON_GEM_DOMAIN_GTT,

					      RADEON_GEM_GTT_WC);

	} else {

		/* Before CIK, it's better to stick to cacheable GTT due

		 * to the command stream checking

		 */

		r = radeon_sa_bo_manager_init(rdev, &rdev->ring_tmp_bo,

					      RADEON_IB_POOL_SIZE*64*1024,

					      RADEON_GPU_PAGE_SIZE,

					      RADEON_GEM_DOMAIN_GTT, 0);

	}

	if (r) {

		return r;

	}