Re: ioremap_nocache problem?
From: Timur Tabi <hidden>
Date: 2001-01-23 18:38:42
** Reply to message from Roman Zippel [off-list ref] on Tue, 23 Jan 2001 19:12:36 +0100 (MET)
ioremap creates a new mapping that shouldn't interfere with MTRR, whereas you can map a MTRR mapped area into userspace. But I'm not sure if it's correct that no flag is set for boot_cpu_data.x86 <= 3...
I was under the impression that the "don't cache" bit that ioremap_nocache sets overrides any MTRR. -- Timur Tabi - ttabi@interactivesi.com Interactive Silicon - http://www.interactivesi.com When replying to a mailing-list message, please direct the reply to the mailing list only. Don't send another copy to me. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/