ttm: export functions to allow qxl do its own iomapping

qxl wants to use io mapping like i915 gem does, for now just export the symbols so the driver can implement atomic page maps using io mapping. Signed-off-by: Dave Airlie <airlied@redhat.com>
mariux64 · Apr 12, 2013 · afe6804 · afe6804
1 parent 97d1033
commit afe6804
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Showing 2 changed files with 13 additions and 4 deletions.
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -86,6 +86,7 @@ int ttm_mem_io_lock(struct ttm_mem_type_manager *man, bool interruptible)
 	mutex_lock(&man->io_reserve_mutex);
 	return 0;
 }
+EXPORT_SYMBOL(ttm_mem_io_lock);
 
 void ttm_mem_io_unlock(struct ttm_mem_type_manager *man)
 {
@@ -94,6 +95,7 @@ void ttm_mem_io_unlock(struct ttm_mem_type_manager *man)
 
 	mutex_unlock(&man->io_reserve_mutex);
 }
+EXPORT_SYMBOL(ttm_mem_io_unlock);
 
 static int ttm_mem_io_evict(struct ttm_mem_type_manager *man)
 {
@@ -111,8 +113,9 @@ static int ttm_mem_io_evict(struct ttm_mem_type_manager *man)
 	return 0;
 }
 
-static int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
-			      struct ttm_mem_reg *mem)
+
+int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
+		       struct ttm_mem_reg *mem)
 {
 	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
 	int ret = 0;
@@ -134,9 +137,10 @@ static int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
 	}
 	return ret;
 }
+EXPORT_SYMBOL(ttm_mem_io_reserve);
 
-static void ttm_mem_io_free(struct ttm_bo_device *bdev,
-			    struct ttm_mem_reg *mem)
+void ttm_mem_io_free(struct ttm_bo_device *bdev,
+		     struct ttm_mem_reg *mem)
 {
 	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
 
@@ -149,6 +153,7 @@ static void ttm_mem_io_free(struct ttm_bo_device *bdev,
 		bdev->driver->io_mem_free(bdev, mem);
 
 }
+EXPORT_SYMBOL(ttm_mem_io_free);
 
 int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo)
 {

diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
@@ -902,6 +902,10 @@ extern void ttm_bo_unreserve_locked(struct ttm_buffer_object *bo);
  * ttm_bo_util.c
  */
 
+int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
+		       struct ttm_mem_reg *mem);
+void ttm_mem_io_free(struct ttm_bo_device *bdev,
+		     struct ttm_mem_reg *mem);
 /**
  * ttm_bo_move_ttm
  *