drm/ttm: add interruptible parameter to ttm_eu_reserve_buffers
It seems some drivers really want this as a parameter,
like vmwgfx.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
index 16db7d0..fd95fd5 100644
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -73,6 +73,7 @@
* @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
*
* Tries to reserve bos pointed to by the list entries for validation.
* If the function returns 0, all buffers are marked as "unfenced",
@@ -84,9 +85,9 @@
* 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.
*
* Buffers reserved by this function should be unreserved by
* a call to either ttm_eu_backoff_reservation() or
@@ -95,7 +96,7 @@
*/
extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
- struct list_head *list);
+ struct list_head *list, bool intr);
/**
* function ttm_eu_fence_buffer_objects.