diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/drm_fence.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/linux-core/drm_fence.c b/linux-core/drm_fence.c index 41fe62a8..cb7aee09 100644 --- a/linux-core/drm_fence.c +++ b/linux-core/drm_fence.c @@ -31,6 +31,7 @@ #include "drmP.h" + /* * Typically called by the IRQ handler. */ @@ -44,14 +45,20 @@ void drm_fence_handler(drm_device_t * dev, uint32_t sequence, uint32_t type) drm_fence_driver_t *driver = dev->driver->fence_driver; struct list_head *list, *prev; drm_fence_object_t *fence; + int found = 0; + + if (list_empty(&fm->ring)) + return; list_for_each_entry(fence, &fm->ring, ring) { diff = (sequence - fence->sequence) & driver->sequence_mask; - if (diff > driver->wrap_diff) + if (diff > driver->wrap_diff) { + found = 1; break; + } } - list = fence->ring.prev; + list = (found) ? fence->ring.prev : fm->ring.prev; prev = list->prev; for (; list != &fm->ring; list = prev, prev = list->prev) { |