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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-28 14:59:07 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-28 14:59:07 -0700 |
commit | adb2705a89e8b41abcf29c0ed86f4ce93ab36734 (patch) | |
tree | 01d772570d58cce24b61874e711fd9f51e2729e7 /include/asm-sparc64/pci.h | |
parent | f340c0d1a3f40fdcba69cd291530a4debc58748f (diff) | |
parent | 8644d2a42bdba2d513f71c07eaf1b6f9b718b8eb (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
Diffstat (limited to 'include/asm-sparc64/pci.h')
-rw-r--r-- | include/asm-sparc64/pci.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/asm-sparc64/pci.h b/include/asm-sparc64/pci.h index 2a0c85cd1c1..84e41c1ef3f 100644 --- a/include/asm-sparc64/pci.h +++ b/include/asm-sparc64/pci.h @@ -220,6 +220,25 @@ static inline int pci_dma_mapping_error(dma_addr_t dma_addr) return (dma_addr == PCI_DMA_ERROR_CODE); } +#ifdef CONFIG_PCI +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + unsigned long cacheline_size; + u8 byte; + + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); + if (byte == 0) + cacheline_size = 1024; + else + cacheline_size = (int) byte * 4; + + *strat = PCI_DMA_BURST_BOUNDARY; + *strategy_parameter = cacheline_size; +} +#endif + /* Return the index of the PCI controller for device PDEV. */ extern int pci_domain_nr(struct pci_bus *bus); |