drm/ttm: Enable the dma page pool also for intel IOMMUs

Used by the vmwgfx driver

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
index 706b962c6467..d1f61bfe0ebe 100644
--- a/include/drm/ttm/ttm_page_alloc.h
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -62,7 +62,7 @@ extern void ttm_pool_unpopulate(struct ttm_tt *ttm);
 extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
 
 
-#ifdef CONFIG_SWIOTLB
+#if defined(CONFIG_SWIOTLB) || defined(CONFIG_INTEL_IOMMU)
 /**
  * Initialize pool allocator.
  */
@@ -94,6 +94,15 @@ static inline int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data)
 {
         return 0;
 }
+static inline int ttm_dma_populate(struct ttm_dma_tt *ttm_dma,
+                                   struct device *dev)
+{
+        return -ENOMEM;
+}
+static inline void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma,
+                                      struct device *dev)
+{
+}
 #endif
 
 #endif