diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-arm/memory.h | 5 | ||||
-rw-r--r-- | include/asm-arm/mmu.h | 1 | ||||
-rw-r--r-- | include/asm-arm/mmu_context.h | 12 |
3 files changed, 17 insertions, 1 deletions
diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h index 94f973b704f1..176a4fb04989 100644 --- a/include/asm-arm/memory.h +++ b/include/asm-arm/memory.h @@ -68,6 +68,11 @@ */ #define XIP_VIRT_ADDR(physaddr) (MODULE_START + ((physaddr) & 0x000fffff)) +/* + * Allow 2MB-aligned ioremap pages + */ +#define IOREMAP_MAX_ORDER 21 + #else /* CONFIG_MMU */ /* diff --git a/include/asm-arm/mmu.h b/include/asm-arm/mmu.h index 23dde52e0945..fe2a23b5627b 100644 --- a/include/asm-arm/mmu.h +++ b/include/asm-arm/mmu.h @@ -7,6 +7,7 @@ typedef struct { #if __LINUX_ARM_ARCH__ >= 6 unsigned int id; #endif + unsigned int kvm_seq; } mm_context_t; #if __LINUX_ARM_ARCH__ >= 6 diff --git a/include/asm-arm/mmu_context.h b/include/asm-arm/mmu_context.h index 9fadb01e030d..d1a65b1edcaa 100644 --- a/include/asm-arm/mmu_context.h +++ b/include/asm-arm/mmu_context.h @@ -17,6 +17,8 @@ #include <asm/cacheflush.h> #include <asm/proc-fns.h> +void __check_kvm_seq(struct mm_struct *mm); + #if __LINUX_ARM_ARCH__ >= 6 /* @@ -45,13 +47,21 @@ static inline void check_context(struct mm_struct *mm) { if (unlikely((mm->context.id ^ cpu_last_asid) >> ASID_BITS)) __new_context(mm); + + if (unlikely(mm->context.kvm_seq != init_mm.context.kvm_seq)) + __check_kvm_seq(mm); } #define init_new_context(tsk,mm) (__init_new_context(tsk,mm),0) #else -#define check_context(mm) do { } while (0) +static inline void check_context(struct mm_struct *mm) +{ + if (unlikely(mm->context.kvm_seq != init_mm.context.kvm_seq)) + __check_kvm_seq(mm); +} + #define init_new_context(tsk,mm) 0 #endif |