| 39,19 → 39,13 |
|---|
| * |
| * @head: list head for thread-private list. |
| * @bo: refcounted buffer object pointer. |
| * @reserved: Indicates whether @bo has been reserved for validation. |
| * @removed: Indicates whether @bo has been removed from lru lists. |
| * @put_count: Number of outstanding references on bo::list_kref. |
| * @old_sync_obj: Pointer to a sync object about to be unreferenced |
| * @shared: should the fence be added shared? |
| */ |
| |
| struct ttm_validate_buffer { |
| struct list_head head; |
| struct ttm_buffer_object *bo; |
| bool reserved; |
| bool removed; |
| int put_count; |
| void *old_sync_obj; |
| bool shared; |
| }; |
| |
| /** |
| 73,6 → 67,8 |
|---|
| * @ticket: [out] ww_acquire_ctx filled in by call, or NULL if only |
| * non-blocking reserves should be tried. |
| * @list: thread private list of ttm_validate_buffer structs. |
| * @intr: should the wait be interruptible |
| * @dups: [out] optional list of duplicates. |
| * |
| * Tries to reserve bos pointed to by the list entries for validation. |
| * If the function returns 0, all buffers are marked as "unfenced", |
| 84,10 → 80,15 |
|---|
| * CPU write reservations to be cleared, and for other threads to |
| * unreserve their buffers. |
| * |
| * This function may return -ERESTART or -EAGAIN if the calling process |
| * receives a signal while waiting. In that case, no buffers on the list |
| * will be reserved upon return. |
| * If intr is set to true, this function may return -ERESTARTSYS if the |
| * calling process receives a signal while waiting. In that case, no |
| * buffers on the list will be reserved upon return. |
| * |
| * If dups is non NULL all buffers already reserved by the current thread |
| * (e.g. duplicates) are added to this list, otherwise -EALREADY is returned |
| * on the first already reserved buffer and all buffers from the list are |
| * unreserved again. |
| * |
| * Buffers reserved by this function should be unreserved by |
| * a call to either ttm_eu_backoff_reservation() or |
| * ttm_eu_fence_buffer_objects() when command submission is complete or |
| 95,7 → 96,8 |
|---|
| */ |
| |
| extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket, |
| struct list_head *list); |
| struct list_head *list, bool intr, |
| struct list_head *dups); |
| |
| /** |
| * function ttm_eu_fence_buffer_objects. |
| 102,7 → 104,7 |
|---|
| * |
| * @ticket: ww_acquire_ctx from reserve call |
| * @list: thread private list of ttm_validate_buffer structs. |
| * @sync_obj: The new sync object for the buffers. |
| * @fence: The new exclusive fence for the buffers. |
| * |
| * This function should be called when command submission is complete, and |
| * it will add a new sync object to bos pointed to by entries on @list. |
| 111,6 → 113,7 |
|---|
| */ |
| |
| extern void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket, |
| struct list_head *list, void *sync_obj); |
| struct list_head *list, |
| struct fence *fence); |
| |
| #endif |