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-rw-r--r--include/linux/pci-p2pdma.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/pci-p2pdma.h b/include/linux/pci-p2pdma.h
index 7fd51954f93a..8318a97c9c61 100644
--- a/include/linux/pci-p2pdma.h
+++ b/include/linux/pci-p2pdma.h
@@ -32,6 +32,8 @@ void pci_p2pmem_free_sgl(struct pci_dev *pdev, struct scatterlist *sgl);
void pci_p2pmem_publish(struct pci_dev *pdev, bool publish);
int pci_p2pdma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir, unsigned long attrs);
+void pci_p2pdma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir, unsigned long attrs);
int pci_p2pdma_enable_store(const char *page, struct pci_dev **p2p_dev,
bool *use_p2pdma);
ssize_t pci_p2pdma_enable_show(char *page, struct pci_dev *p2p_dev,
@@ -87,6 +89,11 @@ static inline int pci_p2pdma_map_sg_attrs(struct device *dev,
{
return 0;
}
+static inline void pci_p2pdma_unmap_sg_attrs(struct device *dev,
+ struct scatterlist *sg, int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+}
static inline int pci_p2pdma_enable_store(const char *page,
struct pci_dev **p2p_dev, bool *use_p2pdma)
{
@@ -118,4 +125,10 @@ static inline int pci_p2pdma_map_sg(struct device *dev, struct scatterlist *sg,
return pci_p2pdma_map_sg_attrs(dev, sg, nents, dir, 0);
}
+static inline void pci_p2pdma_unmap_sg(struct device *dev,
+ struct scatterlist *sg, int nents, enum dma_data_direction dir)
+{
+ pci_p2pdma_unmap_sg_attrs(dev, sg, nents, dir, 0);
+}
+
#endif /* _LINUX_PCI_P2P_H */