diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-01-15 15:45:31 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-15 15:45:31 +0100 |
| commit | 49a93bc978b4b3d564f6b330179b4cc2724a031d (patch) | |
| tree | 8b14b6c1d32b2a64bd9e7d0793717780ecc1d985 /arch/x86/include | |
| parent | 54da5b3d44238eeb7417bacf792fb416d473bf4d (diff) | |
| parent | a6525042bfdfcab128bd91fad264de10fd24a55e (diff) | |
Merge branch 'linus' into cpus4096
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/mach-default/mach_wakecpu.h | 6 | ||||
| -rw-r--r-- | arch/x86/include/asm/mtrr.h | 10 | ||||
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 19 |
3 files changed, 30 insertions, 5 deletions
diff --git a/arch/x86/include/asm/mach-default/mach_wakecpu.h b/arch/x86/include/asm/mach-default/mach_wakecpu.h index ceb01366014..89897a6a65b 100644 --- a/arch/x86/include/asm/mach-default/mach_wakecpu.h +++ b/arch/x86/include/asm/mach-default/mach_wakecpu.h @@ -24,7 +24,13 @@ static inline void restore_NMI_vector(unsigned short *high, unsigned short *low) { } +#ifdef CONFIG_SMP extern void __inquire_remote_apic(int apicid); +#else /* CONFIG_SMP */ +static inline void __inquire_remote_apic(int apicid) +{ +} +#endif /* CONFIG_SMP */ static inline void inquire_remote_apic(int apicid) { diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h index cb988aab716..14080d22edb 100644 --- a/arch/x86/include/asm/mtrr.h +++ b/arch/x86/include/asm/mtrr.h @@ -58,15 +58,15 @@ struct mtrr_gentry { #endif /* !__i386__ */ struct mtrr_var_range { - u32 base_lo; - u32 base_hi; - u32 mask_lo; - u32 mask_hi; + __u32 base_lo; + __u32 base_hi; + __u32 mask_lo; + __u32 mask_hi; }; /* In the Intel processor's MTRR interface, the MTRR type is always held in an 8 bit field: */ -typedef u8 mtrr_type; +typedef __u8 mtrr_type; #define MTRR_NUM_FIXED_RANGES 88 #define MTRR_MAX_VAR_RANGES 256 diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 83e69f4a37f..06bbcbd66e9 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -341,6 +341,25 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) #define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask) +static inline int is_new_memtype_allowed(unsigned long flags, + unsigned long new_flags) +{ + /* + * Certain new memtypes are not allowed with certain + * requested memtype: + * - request is uncached, return cannot be write-back + * - request is write-combine, return cannot be write-back + */ + if ((flags == _PAGE_CACHE_UC_MINUS && + new_flags == _PAGE_CACHE_WB) || + (flags == _PAGE_CACHE_WC && + new_flags == _PAGE_CACHE_WB)) { + return 0; + } + + return 1; +} + #ifndef __ASSEMBLY__ /* Indicate that x86 has its own track and untrack pfn vma functions */ #define __HAVE_PFNMAP_TRACKING |