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| author | LEROY Christophe <christophe.leroy@c-s.fr> | 2014-09-19 10:36:09 +0200 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-11-07 18:10:43 -0600 |
| commit | 4094f28f90adab007eca9babf28f606a40a83032 (patch) | |
| tree | 4a9d47ec744360da9391ad705693ad8f5993c664 /arch/powerpc/include/asm/pte-8xx.h | |
| parent | d3e40262e7d05236bf4c2c4fdf007589ba8af97a (diff) | |
| download | op-kernel-dev-4094f28f90adab007eca9babf28f606a40a83032.zip op-kernel-dev-4094f28f90adab007eca9babf28f606a40a83032.tar.gz | |
powerpc/8xx: set PTE bit 22 off TLBmiss
No need to re-set this bit at each TLB miss. Let's set it in the PTE.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'arch/powerpc/include/asm/pte-8xx.h')
| -rw-r--r-- | arch/powerpc/include/asm/pte-8xx.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/pte-8xx.h b/arch/powerpc/include/asm/pte-8xx.h index d44826e..daa4616 100644 --- a/arch/powerpc/include/asm/pte-8xx.h +++ b/arch/powerpc/include/asm/pte-8xx.h @@ -48,19 +48,22 @@ */ #define _PAGE_RW 0x0400 /* lsb PP bits, inverted in HW */ #define _PAGE_USER 0x0800 /* msb PP bits */ +/* set when neither _PAGE_USER nor _PAGE_RW are set */ +#define _PAGE_KNLRO 0x0200 #define _PMD_PRESENT 0x0001 #define _PMD_BAD 0x0ff0 #define _PMD_PAGE_MASK 0x000c #define _PMD_PAGE_8M 0x000c -#define _PTE_NONE_MASK _PAGE_ACCESSED +#define _PTE_NONE_MASK _PAGE_KNLRO /* Until my rework is finished, 8xx still needs atomic PTE updates */ #define PTE_ATOMIC_UPDATES 1 /* We need to add _PAGE_SHARED to kernel pages */ -#define _PAGE_KERNEL_RO (_PAGE_SHARED) +#define _PAGE_KERNEL_RO (_PAGE_SHARED | _PAGE_KNLRO) +#define _PAGE_KERNEL_ROX (_PAGE_EXEC | _PAGE_KNLRO) #define _PAGE_KERNEL_RW (_PAGE_DIRTY | _PAGE_RW | _PAGE_HWWRITE) #endif /* __KERNEL__ */ |
