diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index c8a8a5144ec1..7fb7c1cc6af3 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -521,6 +521,8 @@ static int radeon_ttm_backend_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem) { struct radeon_ttm_tt *gtt = (void*)ttm; + uint32_t flags = RADEON_GART_PAGE_VALID | RADEON_GART_PAGE_READ | + RADEON_GART_PAGE_WRITE; int r; gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT); @@ -528,8 +530,10 @@ static int radeon_ttm_backend_bind(struct ttm_tt *ttm, WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n", ttm->num_pages, bo_mem, ttm); } - r = radeon_gart_bind(gtt->rdev, gtt->offset, - ttm->num_pages, ttm->pages, gtt->ttm.dma_address); + if (ttm->caching_state == tt_cached) + flags |= RADEON_GART_PAGE_SNOOP; + r = radeon_gart_bind(gtt->rdev, gtt->offset, ttm->num_pages, + ttm->pages, gtt->ttm.dma_address, flags); if (r) { DRM_ERROR("failed to bind %lu pages at 0x%08X\n", ttm->num_pages, (unsigned)gtt->offset); |