Update of /cvsroot/linux-mips/linux/include/asm-mips
In directory usw-pr-cvs1:/tmp/cvs-serv23504/include/asm-mips
Modified Files:
pci.h
Log Message:
The purpose of CONFIG_MAPPED_PCI_IO, is to allow a board to have
its own pci_map_* implementation and its own pci-dma.c... useful
when you have broken/stupid hardware.
Index: pci.h
===================================================================
RCS file: /cvsroot/linux-mips/linux/include/asm-mips/pci.h,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -d -r1.9 -r1.10
--- pci.h 26 Feb 2002 19:03:32 -0000 1.9
+++ pci.h 12 Apr 2002 20:50:47 -0000 1.10
@@ -79,6 +79,37 @@
extern void pci_free_consistent(struct pci_dev *hwdev, size_t size,
void *vaddr, dma_addr_t dma_handle);
+#ifdef CONFIG_MAPPED_PCI_IO
+
+extern dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size,
+ int direction);
+extern void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
+ size_t size, int direction);
+extern int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents,
+ int direction);
+extern void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
+ int nents, int direction);
+extern void pci_dma_sync_single(struct pci_dev *hwdev, dma_addr_t dma_handle,
+ size_t size, int direction);
+extern void pci_dma_sync_sg(struct pci_dev *hwdev, struct scatterlist *sg,
+ int nelems, int direction);
+
+/* pci_unmap_{single,page} is not a nop, thus... */
+#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
+ dma_addr_t ADDR_NAME;
+#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
+ __u32 LEN_NAME;
+#define pci_unmap_addr(PTR, ADDR_NAME) \
+ ((PTR)->ADDR_NAME)
+#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
+ (((PTR)->ADDR_NAME) = (VAL))
+#define pci_unmap_len(PTR, LEN_NAME) \
+ ((PTR)->LEN_NAME)
+#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
+ (((PTR)->LEN_NAME) = (VAL))
+
+#else /* CONFIG_MAPPED_PCI_IO */
+
/*
* Map a single buffer of the indicated size for DMA in streaming mode.
* The 32-bit bus address to use is returned.
@@ -249,6 +280,9 @@
dma_cache_wback_inv((unsigned long)sg->address, sg->length);
#endif
}
+
+#endif /* CONFIG_MAPPED_PCI_IO */
+
/* Return whether the given PCI device DMA address mask can
* be supported properly. For example, if your device can
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