diff options
Diffstat (limited to 'kernel/arch/arm/include/asm/mmu.h')
-rw-r--r-- | kernel/arch/arm/include/asm/mmu.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/kernel/arch/arm/include/asm/mmu.h b/kernel/arch/arm/include/asm/mmu.h new file mode 100644 index 000000000..a5b474210 --- /dev/null +++ b/kernel/arch/arm/include/asm/mmu.h @@ -0,0 +1,40 @@ +#ifndef __ARM_MMU_H +#define __ARM_MMU_H + +#ifdef CONFIG_MMU + +typedef struct { +#ifdef CONFIG_CPU_HAS_ASID + atomic64_t id; +#else + int switch_pending; +#endif + unsigned int vmalloc_seq; + unsigned long sigpage; +#ifdef CONFIG_VDSO + unsigned long vdso; +#endif +} mm_context_t; + +#ifdef CONFIG_CPU_HAS_ASID +#define ASID_BITS 8 +#define ASID_MASK ((~0ULL) << ASID_BITS) +#define ASID(mm) ((unsigned int)((mm)->context.id.counter & ~ASID_MASK)) +#else +#define ASID(mm) (0) +#endif + +#else + +/* + * From nommu.h: + * Copyright (C) 2002, David McCullough <davidm@snapgear.com> + * modified for 2.6 by Hyok S. Choi <hyok.choi@samsung.com> + */ +typedef struct { + unsigned long end_brk; +} mm_context_t; + +#endif + +#endif |