Messages in this thread | | | Date | Thu, 30 May 2002 13:44:06 -0700 (PDT) | From | William Chow <> | Subject | is pci_alloc_consistent() really consistent on a pentium? |
| |
If IA32 builds use the i386 version of pci_alloc_consistent(), how is the memory provided by this function really write-thru (on a pentium) since it appears to only set up the default mapping (PCD/PWT==0)? In contrast, pgprot_noncached() and pci_mmap_page_range() explicitly set these bits on a pentium (i.e. when boot_cpu_data.x86 > 3). Or am I missing something?
Please CC me on the response.
- William Chow
__________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |