Messages in this thread | | | Date | Wed, 24 Jan 2001 11:48:19 -0600 | From | Timur Tabi <> | Subject | Page Attribute Table (PAT) support? |
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The Page Attribute Table (PAT) is an extension to the x86 page table format that lets you enable Write Combining on a per-page basis. Details can be found in chapter 9.13 of the Intel Architecture Software Developer's Manual, Volume 3 (System Programming).
I noticed that 2.4 doesn't support the Page Attribute Table, despite the fact that it has a X86_FEATURE_PAT macro in processor.h. Are there any plans to add this support? Ideally, I'd like it to be as a parameter for ioremap.
-- Timur Tabi - ttabi@interactivesi.com Interactive Silicon - http://www.interactivesi.com
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