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-rw-r--r--linux-core/drm_bo.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c
index cc4743dc..35ac8a0a 100644
--- a/linux-core/drm_bo.c
+++ b/linux-core/drm_bo.c
@@ -1072,13 +1072,6 @@ static int drm_bo_check_unfenced(struct drm_buffer_object * bo)
/*
* Wait until a buffer, scheduled to be fenced moves off the unfenced list.
* Until then, we cannot really do anything with it except delete it.
- * The unfenced list is a PITA, and the operations
- * 1) validating
- * 2) submitting commands
- * 3) fencing
- * Should really be an atomic operation.
- * We now "solve" this problem by keeping
- * the buffer "unfenced" after validating, but before fencing.
*/
static int drm_bo_wait_unfenced(struct drm_buffer_object * bo, int no_wait,
@@ -2144,8 +2137,10 @@ int drm_bo_init_mm(struct drm_device * dev,
EXPORT_SYMBOL(drm_bo_init_mm);
/*
- * This is called from lastclose, so we don't need to bother about
- * any clients still running when we set the initialized flag to zero.
+ * This function is intended to be called on drm driver unload.
+ * If you decide to call it from lastclose, you must protect the call
+ * from a potentially racing drm_bo_driver_init in firstopen.
+ * (This may happen on X server restart).
*/
int drm_bo_driver_finish(struct drm_device * dev)
@@ -2199,6 +2194,13 @@ int drm_bo_driver_finish(struct drm_device * dev)
return ret;
}
+/*
+ * This function is intended to be called on drm driver load.
+ * If you decide to call it from firstopen, you must protect the call
+ * from a potentially racing drm_bo_driver_finish in lastclose.
+ * (This may happen on X server restart).
+ */
+
int drm_bo_driver_init(struct drm_device * dev)
{
struct drm_bo_driver *driver = dev->driver->bo_driver;