On Tue, 2010-12-28 at 11:35 +0800, H. Peter Anvin wrote: > On 12/27/2010 07:21 PM, Shaohua Li wrote: > > RCRB is a memory mapped io. In ICH, it's chipset configuration > > registers. this range can't be cached. > > I thought we should add a check like > > if page is E820_RAM or E820_ACPI then > > cached_map > > else > > uncached_map > > we have page_is_ram() API which just checks E820_RAM, I thought we can > > add a new API to check E820_ACPI. > > For x86, that is handled by the MTRRs; does it cause any problem if the pat and mtrr doesn't match? -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
