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Diffstat (limited to 'include/linux/pci-dma-compat.h')
-rw-r--r--include/linux/pci-dma-compat.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/pci-dma-compat.h b/include/linux/pci-dma-compat.h
index eafce7b6f052..39726caef5b1 100644
--- a/include/linux/pci-dma-compat.h
+++ b/include/linux/pci-dma-compat.h
@@ -6,6 +6,12 @@
#include <linux/dma-mapping.h>
+/* This defines the direction arg to the DMA mapping routines. */
+#define PCI_DMA_BIDIRECTIONAL 0
+#define PCI_DMA_TODEVICE 1
+#define PCI_DMA_FROMDEVICE 2
+#define PCI_DMA_NONE 3
+
static inline void *
pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
dma_addr_t *dma_handle)
@@ -113,6 +119,29 @@ static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
{
return dma_set_coherent_mask(&dev->dev, mask);
}
+
+static inline int pci_set_dma_max_seg_size(struct pci_dev *dev,
+ unsigned int size)
+{
+ return dma_set_max_seg_size(&dev->dev, size);
+}
+
+static inline int pci_set_dma_seg_boundary(struct pci_dev *dev,
+ unsigned long mask)
+{
+ return dma_set_seg_boundary(&dev->dev, mask);
+}
+#else
+static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
+{ return -EIO; }
+static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
+{ return -EIO; }
+static inline int pci_set_dma_max_seg_size(struct pci_dev *dev,
+ unsigned int size)
+{ return -EIO; }
+static inline int pci_set_dma_seg_boundary(struct pci_dev *dev,
+ unsigned long mask)
+{ return -EIO; }
#endif
#endif