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| author | Tony Luck <tony.luck@intel.com> | 2005-06-29 15:21:41 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-06-29 15:21:41 -0700 |
| commit | d18bfacff20f08aecf01bb971b110ca108eef3c7 (patch) | |
| tree | 255f862839c593c796e609328575b611e3f56cf3 /include/asm-sparc64/pci.h | |
| parent | a68db763af9b676590c3fe9ec3f17bf18015eb2f (diff) | |
| parent | fd782a4a99d2d3e818b9465c427b10f7f027d7da (diff) | |
Auto merge with /home/aegl/GIT/linus
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 2a0c85cd1c11..84e41c1ef3f8 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); |