diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 18 | ||||
| -rw-r--r-- | include/uapi/drm/radeon_drm.h | 1 |
2 files changed, 18 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 032736b429bf..450656027aba 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -291,7 +291,7 @@ int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data, /* reject unknown flag values */ if (args->flags & ~(RADEON_GEM_USERPTR_READONLY | - RADEON_GEM_USERPTR_ANONONLY)) + RADEON_GEM_USERPTR_ANONONLY | RADEON_GEM_USERPTR_VALIDATE)) return -EINVAL; /* readonly pages not tested on older hardware */ @@ -312,6 +312,22 @@ int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data, if (r) goto release_object; + if (args->flags & RADEON_GEM_USERPTR_VALIDATE) { + down_read(¤t->mm->mmap_sem); + r = radeon_bo_reserve(bo, true); + if (r) { + up_read(¤t->mm->mmap_sem); + goto release_object; + } + + radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT); + r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); + radeon_bo_unreserve(bo); + up_read(¤t->mm->mmap_sem); + if (r) + goto release_object; + } + r = drm_gem_handle_create(filp, gobj, &handle); /* drop reference from allocate - handle holds it now */ drm_gem_object_unreference_unlocked(gobj); diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h index 9720e1a36848..5dc61c2d4c73 100644 --- a/include/uapi/drm/radeon_drm.h +++ b/include/uapi/drm/radeon_drm.h @@ -817,6 +817,7 @@ struct drm_radeon_gem_create { */ #define RADEON_GEM_USERPTR_READONLY (1 << 0) #define RADEON_GEM_USERPTR_ANONONLY (1 << 1) +#define RADEON_GEM_USERPTR_VALIDATE (1 << 2) struct drm_radeon_gem_userptr { uint64_t addr; |
