path: root/include
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authorThomas Hellstrom <thellstrom@vmware.com>2010-01-13 22:28:40 +0100
committerDave Airlie <airlied@redhat.com>2010-01-14 12:18:54 +1000
commit3f09ea4ecdcbcea05541f83e557d6ce2e56626d8 (patch)
tree445e4519b2e8a39136f611f07db670d1e10ace6e /include
parenteffe1105bef07f42366c20eac41b80ff9fcf675e (diff)
drm/ttm: Add a swap_notify callback.
This is needed for a bugfix in the vmwgfx driver. Drivers may have GPU bindings on buffers that core TTM is not aware of, and TTM may view those buffers as ordinary system memory buffers. Add a notifier to such drivers when TTM is about to move the buffer contents out to swappable memory. The driver must then release any private GPU bindings on those buffers. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include')
1 files changed, 5 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index ff7664e0c3c..4c4e0f8375b 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -353,6 +353,11 @@ struct ttm_bo_driver {
/* notify the driver we are taking a fault on this BO
* and have reserved it */
void (*fault_reserve_notify)(struct ttm_buffer_object *bo);
+ /**
+ * notify the driver that we're about to swap out this bo
+ */
+ void (*swap_notify) (struct ttm_buffer_object *bo);