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>

diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 8be35c809c7b612c5a33bc5271051273bd58cd92..af894584dd909f287dade021a50bef2bce233489 100644 (file)
--- 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 @@ retry:
        }
        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
index 0fbd046e7c93653b0c862623e4716fdcfef39465..9c8dca79808eb1770c1efc6d2832fa6de089cdd0 100644 (file)
--- 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
  *