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 /drivers/gpu/drm/ttm/ttm_bo.c | |
| parent | 702adba22433c175e8429a47760f35ca16caf1cd (diff) | |
| download | blackbird-op-linux-95762c2b34069bf4adb7929969f1f5f5fc8a38df.tar.gz blackbird-op-linux-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 'drivers/gpu/drm/ttm/ttm_bo.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index d93c73b1c471..551a5d31cadf 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -299,14 +299,19 @@ int ttm_bo_reserve(struct ttm_buffer_object *bo, return ret; } +void ttm_bo_unreserve_locked(struct ttm_buffer_object *bo) +{ + ttm_bo_add_to_lru(bo); + atomic_set(&bo->reserved, 0); + wake_up_all(&bo->event_queue); +} + void ttm_bo_unreserve(struct ttm_buffer_object *bo) { struct ttm_bo_global *glob = bo->glob; spin_lock(&glob->lru_lock); - ttm_bo_add_to_lru(bo); - atomic_set(&bo->reserved, 0); - wake_up_all(&bo->event_queue); + ttm_bo_unreserve_locked(bo); spin_unlock(&glob->lru_lock); } EXPORT_SYMBOL(ttm_bo_unreserve); |
