@@ -86,21 +86,32 @@ struct drm_gem_object *nouveau_gem_prime_import_sg_table(struct drm_device *dev,
int nouveau_gem_prime_pin(struct drm_gem_object *obj)
{
struct nouveau_bo *nvbo = nouveau_gem_object(obj);
+ struct ttm_buffer_object *bo = &nvbo->bo;
int ret;
- /* pin buffer into GTT */
- ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_GART, false);
+ ret = ttm_bo_reserve(bo, false, false, NULL);
if (ret)
return -EINVAL;
+ /* pin buffer into GTT */
+ ret = nouveau_bo_pin_locked(nvbo, NOUVEAU_GEM_DOMAIN_GART, false);
+ if (ret)
+ ret = -EINVAL;
+ ttm_bo_unreserve(bo);
- return 0;
+ return ret;
}
void nouveau_gem_prime_unpin(struct drm_gem_object *obj)
{
struct nouveau_bo *nvbo = nouveau_gem_object(obj);
+ struct ttm_buffer_object *bo = &nvbo->bo;
+ int ret;
- nouveau_bo_unpin(nvbo);
+ ret = ttm_bo_reserve(bo, false, false, NULL);
+ if (ret)
+ return;
+ nouveau_bo_unpin_locked(nvbo);
+ ttm_bo_unreserve(bo);
}
struct dma_buf *nouveau_gem_prime_export(struct drm_gem_object *gobj,
Acquire the reservation lock directly in GEM pin callback. Same for unpin. Prepares for further changes. Dma-buf locking semantics require callers to hold the buffer's reservation lock when invoking the pin and unpin callbacks. Prepare nouveau accordingly by pushing locking out of the implementation. A follow-up patch will fix locking for all GEM code at once. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/gpu/drm/nouveau/nouveau_prime.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-)