diff options
| author | Rafael J. Wysocki <rjw@sisk.pl> | 2009-09-10 00:02:02 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2009-09-10 00:02:02 +0200 |
| commit | bf992fa2bc1ad1bb2aeb0bdfadb43f236b9297fd (patch) | |
| tree | d67f525c76b66956ba7ca0d40bc0fcda0e414700 /arch/x86/include/asm | |
| parent | 9d7302299ee96ca954fe4ab8ca640333b6e19ad0 (diff) | |
| parent | 7135a71b19be1faf48b7148d77844d03bc0717d6 (diff) | |
Merge branch 'master' into for-linus
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 3cc06e3fceb..16748077559 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -2,6 +2,7 @@ #define _ASM_X86_PGTABLE_H #include <asm/page.h> +#include <asm/e820.h> #include <asm/pgtable_types.h> @@ -269,10 +270,17 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) #define canon_pgprot(p) __pgprot(massage_pgprot(p)) -static inline int is_new_memtype_allowed(unsigned long flags, - unsigned long new_flags) +static inline int is_new_memtype_allowed(u64 paddr, unsigned long size, + unsigned long flags, + unsigned long new_flags) { /* + * PAT type is always WB for ISA. So no need to check. + */ + if (is_ISA_range(paddr, paddr + size - 1)) + return 1; + + /* * Certain new memtypes are not allowed with certain * requested memtype: * - request is uncached, return cannot be write-back |