drm/ttm/radeon: add dma32 support.

[pandora-kernel.git] / drivers / gpu / drm / ttm / ttm_bo.c

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index a753598..e55e797 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -224,6 +224,9 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc)
        TTM_ASSERT_LOCKED(&bo->mutex);
        bo->ttm = NULL;
 
+       if (bdev->need_dma32)
+               page_flags |= TTM_PAGE_FLAG_DMA32;
+
        switch (bo->type) {
        case ttm_bo_type_device:
                if (zero_alloc)
@@ -1332,7 +1335,8 @@ EXPORT_SYMBOL(ttm_bo_device_release);
 
 int ttm_bo_device_init(struct ttm_bo_device *bdev,
                       struct ttm_mem_global *mem_glob,
-                      struct ttm_bo_driver *driver, uint64_t file_page_offset)
+                      struct ttm_bo_driver *driver, uint64_t file_page_offset,
+                      bool need_dma32)
 {
        int ret = -EINVAL;
 
@@ -1369,6 +1373,7 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
        INIT_LIST_HEAD(&bdev->ddestroy);
        INIT_LIST_HEAD(&bdev->swap_lru);
        bdev->dev_mapping = NULL;
+       bdev->need_dma32 = need_dma32;
        ttm_mem_init_shrink(&bdev->shrink, ttm_bo_swapout);
        ret = ttm_mem_register_shrink(mem_glob, &bdev->shrink);
        if (unlikely(ret != 0)) {