Simply route these through to the new dma_(un)map_peer_resource APIs.
Also route pci_peer_mapping_error through to the new dma_peer_mapping_error
API.
Guard these new functions behind CONFIG_HAS_DMA_P2P.
Signed-off-by: Will Davis <wda...@nvidia.com>
Reviewed-by: Terence Ripperda <trippe...@nvidia.com>
Reviewed-by: John Hubbard <jhubb...@nvidia.com>
---
include/asm-generic/pci-dma-compat.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/include/asm-generic/pci-dma-compat.h
b/include/asm-generic/pci-dma-compat.h
index c110843..7baf09e 100644
--- a/include/asm-generic/pci-dma-compat.h
+++ b/include/asm-generic/pci-dma-compat.h
@@ -61,6 +61,29 @@ pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
dma_unmap_page(hwdev == NULL ? NULL : &hwdev->dev, dma_address, size,
(enum dma_data_direction)direction);
}
+#ifdef CONFIG_HAS_DMA_P2P
+static inline dma_peer_addr_t
+pci_map_peer_resource(struct pci_dev *hwdev, struct pci_dev *peer,
+ int res, unsigned long offset, size_t size,
+ int direction)
+{
+ return dma_map_peer_resource(hwdev == NULL ? NULL : &hwdev->dev, peer
== NULL ? NULL : &peer->dev, peer == NULL ? NULL : &peer->resource[res],
offset, size, (enum dma_data_direction)direction);
+}
+
+static inline int
+pci_dma_peer_mapping_error(struct pci_dev *pdev, dma_peer_addr_t dma_addr)
+{
+ return dma_peer_mapping_error(&pdev->dev, dma_addr);
+}
+
+static inline void
+pci_unmap_peer_resource(struct pci_dev *hwdev, dma_peer_addr_t dma_address,
+ size_t size, int direction)
+{
+ dma_unmap_peer_resource(hwdev == NULL ? NULL : &hwdev->dev,
dma_address, size, (enum dma_data_direction)direction);
+}
+#endif
+
static inline int
pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
int nents, int direction)
--
2.5.1
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