diff options
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_execbuf_util.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_execbuf_util.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c index 3832fe10b4df..36d111a88232 100644 --- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c +++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c @@ -221,8 +221,18 @@ void ttm_eu_fence_buffer_objects(struct list_head *list, void *sync_obj) list_for_each_entry(entry, list, head) { bo = entry->bo; + entry->old_sync_obj_read = NULL; + entry->old_sync_obj_write = NULL; entry->old_sync_obj = bo->sync_obj; bo->sync_obj = driver->sync_obj_ref(sync_obj); + if (entry->usage & TTM_USAGE_READ) { + entry->old_sync_obj_read = bo->sync_obj_read; + bo->sync_obj_read = driver->sync_obj_ref(sync_obj); + } + if (entry->usage & TTM_USAGE_WRITE) { + entry->old_sync_obj_write = bo->sync_obj_write; + bo->sync_obj_write = driver->sync_obj_ref(sync_obj); + } bo->sync_obj_arg = entry->new_sync_obj_arg; ttm_bo_unreserve_locked(bo); entry->reserved = false; @@ -231,8 +241,15 @@ void ttm_eu_fence_buffer_objects(struct list_head *list, void *sync_obj) spin_unlock(&bdev->fence_lock); list_for_each_entry(entry, list, head) { - if (entry->old_sync_obj) + if (entry->old_sync_obj) { driver->sync_obj_unref(&entry->old_sync_obj); + } + if (entry->old_sync_obj_read) { + driver->sync_obj_unref(&entry->old_sync_obj_read); + } + if (entry->old_sync_obj_write) { + driver->sync_obj_unref(&entry->old_sync_obj_write); + } } } EXPORT_SYMBOL(ttm_eu_fence_buffer_objects); |