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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-ia64/pci.h | |
| parent | a68db763af9b676590c3fe9ec3f17bf18015eb2f (diff) | |
| parent | fd782a4a99d2d3e818b9465c427b10f7f027d7da (diff) | |
Auto merge with /home/aegl/GIT/linus
Diffstat (limited to 'include/asm-ia64/pci.h')
| -rw-r--r-- | include/asm-ia64/pci.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/asm-ia64/pci.h b/include/asm-ia64/pci.h index a8314ee4e7d2..0c4c5d801d3f 100644 --- a/include/asm-ia64/pci.h +++ b/include/asm-ia64/pci.h @@ -82,6 +82,25 @@ extern int pcibios_prep_mwi (struct pci_dev *); #define sg_dma_len(sg) ((sg)->dma_length) #define sg_dma_address(sg) ((sg)->dma_address) +#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_MULTIPLE; + *strategy_parameter = cacheline_size; +} +#endif + #define HAVE_PCI_MMAP extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine); |