diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.c | 11 | ||||
| -rw-r--r-- | include/uapi/drm/radeon_drm.h | 2 |
2 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index aadbd36..eef60aa 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -144,7 +144,12 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain) for (i = 0; i < c; ++i) { rbo->placements[i].fpfn = 0; - rbo->placements[i].lpfn = 0; + if ((rbo->flags & RADEON_GEM_CPU_ACCESS) && + (rbo->placements[i].flags & TTM_PL_FLAG_VRAM)) + rbo->placements[i].lpfn = + rbo->rdev->mc.visible_vram_size >> PAGE_SHIFT; + else + rbo->placements[i].lpfn = 0; } /* @@ -152,7 +157,9 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain) * improve fragmentation quality. * 512kb was measured as the most optimal number. */ - if (rbo->tbo.mem.size > 512 * 1024) { + if (!((rbo->flags & RADEON_GEM_CPU_ACCESS) && + (rbo->placements[i].flags & TTM_PL_FLAG_VRAM)) && + rbo->tbo.mem.size > 512 * 1024) { for (i = 0; i < c; i++) { rbo->placements[i].flags |= TTM_PL_FLAG_TOPDOWN; } diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h index 375b6e6..f755f20 100644 --- a/include/uapi/drm/radeon_drm.h +++ b/include/uapi/drm/radeon_drm.h @@ -801,6 +801,8 @@ struct drm_radeon_gem_info { #define RADEON_GEM_NO_BACKING_STORE (1 << 0) #define RADEON_GEM_GTT_UC (1 << 1) #define RADEON_GEM_GTT_WC (1 << 2) +/* BO is expected to be accessed by the CPU */ +#define RADEON_GEM_CPU_ACCESS (1 << 3) struct drm_radeon_gem_create { uint64_t size; |
