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| author | Ralf Baechle <ralf@linux-mips.org> | 2012-10-18 13:54:15 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2012-12-12 16:48:52 +0100 |
| commit | 970d032fec3f9687446595ee2569fb70b858a69f (patch) | |
| tree | 18fdf6999d82569a14a41021328f459a7f4bbd97 /arch/mips/include/asm/pgtable-bits.h | |
| parent | f65aad41772f6a0022e9763fe06f47604449964c (diff) | |
| download | linux-970d032fec3f9687446595ee2569fb70b858a69f.tar.gz linux-970d032fec3f9687446595ee2569fb70b858a69f.tar.bz2 linux-970d032fec3f9687446595ee2569fb70b858a69f.zip | |
MIPS: Transparent Huge Pages support
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/pgtable-bits.h')
| -rw-r--r-- | arch/mips/include/asm/pgtable-bits.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h index 1e2642c360a8..9ce1ac782448 100644 --- a/arch/mips/include/asm/pgtable-bits.h +++ b/arch/mips/include/asm/pgtable-bits.h @@ -137,8 +137,17 @@ #define _PAGE_HUGE ({BUG(); 1; }) /* Dummy value */ #endif +#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT +/* huge tlb page */ +#define _PAGE_SPLITTING_SHIFT (_PAGE_HUGE_SHIFT + 1) +#define _PAGE_SPLITTING (1 << _PAGE_SPLITTING_SHIFT) +#else +#define _PAGE_SPLITTING_SHIFT (_PAGE_HUGE_SHIFT) +#define _PAGE_SPLITTING ({BUG(); 1; }) /* Dummy value */ +#endif + /* Page cannot be executed */ -#define _PAGE_NO_EXEC_SHIFT (cpu_has_rixi ? _PAGE_HUGE_SHIFT + 1 : _PAGE_HUGE_SHIFT) +#define _PAGE_NO_EXEC_SHIFT (cpu_has_rixi ? _PAGE_SPLITTING_SHIFT + 1 : _PAGE_SPLITTING_SHIFT) #define _PAGE_NO_EXEC ({BUG_ON(!cpu_has_rixi); 1 << _PAGE_NO_EXEC_SHIFT; }) /* Page cannot be read */ |