diff options
Diffstat (limited to 'arch/powerpc/include/asm/pte-common.h')
| -rw-r--r-- | arch/powerpc/include/asm/pte-common.h | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h index e040c35..2aef9b7 100644 --- a/arch/powerpc/include/asm/pte-common.h +++ b/arch/powerpc/include/asm/pte-common.h @@ -34,6 +34,12 @@ #ifndef _PAGE_PSIZE #define _PAGE_PSIZE 0 #endif +/* _PAGE_RO and _PAGE_RW shall not be defined at the same time */ +#ifndef _PAGE_RO +#define _PAGE_RO 0 +#else +#define _PAGE_RW 0 +#endif #ifndef _PMD_PRESENT_MASK #define _PMD_PRESENT_MASK _PMD_PRESENT #endif @@ -42,10 +48,10 @@ #define PMD_PAGE_SIZE(pmd) bad_call_to_PMD_PAGE_SIZE() #endif #ifndef _PAGE_KERNEL_RO -#define _PAGE_KERNEL_RO 0 +#define _PAGE_KERNEL_RO (_PAGE_RO) #endif #ifndef _PAGE_KERNEL_ROX -#define _PAGE_KERNEL_ROX (_PAGE_EXEC) +#define _PAGE_KERNEL_ROX (_PAGE_EXEC | _PAGE_RO) #endif #ifndef _PAGE_KERNEL_RW #define _PAGE_KERNEL_RW (_PAGE_DIRTY | _PAGE_RW | _PAGE_HWWRITE) @@ -95,7 +101,7 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void); /* Mask of bits returned by pte_pgprot() */ #define PAGE_PROT_BITS (_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \ _PAGE_WRITETHRU | _PAGE_ENDIAN | _PAGE_4K_PFN | \ - _PAGE_USER | _PAGE_ACCESSED | \ + _PAGE_USER | _PAGE_ACCESSED | _PAGE_RO | \ _PAGE_RW | _PAGE_HWWRITE | _PAGE_DIRTY | _PAGE_EXEC) #ifdef CONFIG_NUMA_BALANCING @@ -128,11 +134,14 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void); */ #define PAGE_NONE __pgprot(_PAGE_BASE) #define PAGE_SHARED __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RW) -#define PAGE_SHARED_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RW | _PAGE_EXEC) -#define PAGE_COPY __pgprot(_PAGE_BASE | _PAGE_USER) -#define PAGE_COPY_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_EXEC) -#define PAGE_READONLY __pgprot(_PAGE_BASE | _PAGE_USER) -#define PAGE_READONLY_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_EXEC) +#define PAGE_SHARED_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RW | \ + _PAGE_EXEC) +#define PAGE_COPY __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RO) +#define PAGE_COPY_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RO | \ + _PAGE_EXEC) +#define PAGE_READONLY __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RO) +#define PAGE_READONLY_X __pgprot(_PAGE_BASE | _PAGE_USER | _PAGE_RO | \ + _PAGE_EXEC) #define __P000 PAGE_NONE #define __P001 PAGE_READONLY |
