diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-v850/pci.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-v850/pci.h')
-rw-r--r-- | include/asm-v850/pci.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/include/asm-v850/pci.h b/include/asm-v850/pci.h new file mode 100644 index 000000000000..e41941447b49 --- /dev/null +++ b/include/asm-v850/pci.h @@ -0,0 +1,88 @@ +/* + * include/asm-v850/pci.h -- PCI support + * + * Copyright (C) 2001,02 NEC Corporation + * Copyright (C) 2001,02 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#ifndef __V850_PCI_H__ +#define __V850_PCI_H__ + +/* Get any platform-dependent definitions. */ +#include <asm/machdep.h> + +#define pcibios_scan_all_fns(a, b) 0 + +/* Generic declarations. */ + +struct scatterlist; + +extern void pcibios_set_master (struct pci_dev *dev); + +/* `Grant' to PDEV the memory block at CPU_ADDR, for doing DMA. The + 32-bit PCI bus mastering address to use is returned. the device owns + this memory until either pci_unmap_single or pci_dma_sync_single_for_cpu is + performed. */ +extern dma_addr_t +pci_map_single (struct pci_dev *pdev, void *cpu_addr, size_t size, int dir); + +/* Return to the CPU the PCI DMA memory block previously `granted' to + PDEV, at DMA_ADDR. */ +extern void +pci_unmap_single (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, + int dir); + +/* Make physical memory consistent for a single streaming mode DMA + translation after a transfer. + + If you perform a pci_map_single() but wish to interrogate the + buffer using the cpu, yet do not wish to teardown the PCI dma + mapping, you must call this function before doing so. At the next + point you give the PCI dma address back to the card, you must first + perform a pci_dma_sync_for_device, and then the device again owns + the buffer. */ +extern void +pci_dma_sync_single_for_cpu (struct pci_dev *dev, dma_addr_t dma_addr, size_t size, + int dir); + +extern void +pci_dma_sync_single_for_device (struct pci_dev *dev, dma_addr_t dma_addr, size_t size, + int dir); + + +/* Do multiple DMA mappings at once. */ +extern int +pci_map_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len, int dir); + +/* Unmap multiple DMA mappings at once. */ +extern void +pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len, + int dir); + +/* Allocate and map kernel buffer using consistent mode DMA for PCI + device. Returns non-NULL cpu-view pointer to the buffer if + successful and sets *DMA_ADDR to the pci side dma address as well, + else DMA_ADDR is undefined. */ +extern void * +pci_alloc_consistent (struct pci_dev *pdev, size_t size, dma_addr_t *dma_addr); + +/* Free and unmap a consistent DMA buffer. CPU_ADDR and DMA_ADDR must + be values that were returned from pci_alloc_consistent. SIZE must be + the same as what as passed into pci_alloc_consistent. References to + the memory and mappings assosciated with CPU_ADDR or DMA_ADDR past + this call are illegal. */ +extern void +pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr, + dma_addr_t dma_addr); + +static inline void pcibios_add_platform_entries(struct pci_dev *dev) +{ +} + +#endif /* __V850_PCI_H__ */ |