x86: handle PAT more like other CPU features

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Impact: Cleanup

When PAT was originally introduced, it was handled specially for a few
reasons:

- PAT bugs are hard to track down, so we wanted to maintain a
  whitelist of CPUs.
- The i386 and x86-64 CPUID code was not yet unified.

Both of these are now obsolete, so handle PAT like any other features,
including ordinary feature blacklisting due to known bugs.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

...

This commit is contained in:

H. Peter Anvin 2009-01-22 16:17:05 -08:00

parent b1882e68d1

commit 75a048119e

5 changed files with 32 additions and 51 deletions

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4

arch/x86/include/asm/pat.h

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34

arch/x86/kernel/cpu/addon_cpuid_features.c

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2

arch/x86/kernel/cpu/common.c

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12

arch/x86/kernel/cpu/intel.c

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31

arch/x86/mm/pat.c

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