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>
diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
index b2b33dd..b433b9f 100644
--- a/drivers/gpu/drm/ttm/Makefile
+++ b/drivers/gpu/drm/ttm/Makefile
@@ -5,10 +5,6 @@
ttm-y := ttm_agp_backend.o ttm_memory.o ttm_tt.o ttm_bo.o \
ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
ttm_object.o ttm_lock.o ttm_execbuf_util.o ttm_page_alloc.o \
- ttm_bo_manager.o
-
-ifeq ($(CONFIG_SWIOTLB),y)
-ttm-y += ttm_page_alloc_dma.o
-endif
+ ttm_bo_manager.o ttm_page_alloc_dma.o
obj-$(CONFIG_DRM_TTM) += ttm.o
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
index 7957bee..fb8259f 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
@@ -33,6 +33,7 @@
* when freed).
*/
+#if defined(CONFIG_SWIOTLB) || defined(CONFIG_INTEL_IOMMU)
#define pr_fmt(fmt) "[TTM] " fmt
#include <linux/dma-mapping.h>
@@ -1142,3 +1143,5 @@
return 0;
}
EXPORT_SYMBOL_GPL(ttm_dma_page_alloc_debugfs);
+
+#endif
diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
index 706b962..d1f61bf 100644
--- a/include/drm/ttm/ttm_page_alloc.h
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -62,7 +62,7 @@
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 @@
{
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