diff options
| author |   Thomas Hellstrom <thellstrom@vmware.com> | 2010-11-17 12:28:30 +0000 |
|---|---|---|
| committer |   Dave Airlie <airlied@redhat.com> | 2010-11-22 13:25:20 +1000 |
| commit | 95762c2b34069bf4adb7929969f1f5f5fc8a38df (patch) | |
| tree | 5c792e65dbdb4e7cb2c04b5a8058a929e8acc23d /include/drm | |
| parent | drm/ttm/radeon/nouveau: Kill the bo lock in favour of a bo device fence_lock (diff) | |
| download | linux-dev-95762c2b34069bf4adb7929969f1f5f5fc8a38df.tar.xz linux-dev-95762c2b34069bf4adb7929969f1f5f5fc8a38df.zip | |
drm/ttm: Improved fencing of buffer object lists
Drastically reduce the number of spin lock / unlock operations by performing
unreserving and fencing under global locks.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jerome Glisse <j.glisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 10 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_execbuf_util.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index ca8131e98300..cfb9ca4ec1c4 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -910,6 +910,16 @@ extern int ttm_bo_reserve_locked(struct ttm_buffer_object *bo, extern void ttm_bo_unreserve(struct ttm_buffer_object *bo); /** + * ttm_bo_unreserve_locked + * + * @bo: A pointer to a struct ttm_buffer_object. + * + * Unreserve a previous reservation of @bo. + * Needs to be called with struct ttm_bo_global::lru_lock held. + */ +extern void ttm_bo_unreserve_locked(struct ttm_buffer_object *bo); + +/** * ttm_bo_wait_unreserved * * @bo: A pointer to a struct ttm_buffer_object. diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h index fd09b8438977..535ab00407e0 100644 --- a/include/drm/ttm/ttm_execbuf_util.h +++ b/include/drm/ttm/ttm_execbuf_util.h @@ -44,6 +44,7 @@ * @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 */ struct ttm_validate_buffer { @@ -53,6 +54,7 @@ struct ttm_validate_buffer { bool reserved; bool removed; int put_count; + void *old_sync_obj; }; /** |