75a048119e
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>
19 lines
365 B
C
19 lines
365 B
C
#ifndef _ASM_X86_PAT_H
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#define _ASM_X86_PAT_H
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#include <linux/types.h>
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#ifdef CONFIG_X86_PAT
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extern int pat_enabled;
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#else
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static const int pat_enabled;
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#endif
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extern void pat_init(void);
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extern int reserve_memtype(u64 start, u64 end,
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unsigned long req_type, unsigned long *ret_type);
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extern int free_memtype(u64 start, u64 end);
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#endif /* _ASM_X86_PAT_H */
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