#ifndef __ASM_ARM_MMU_CONTEXT_H
#define __ASM_ARM_MMU_CONTEXT_H
+#include <linux/compiler.h>
+#include <asm/cacheflush.h>
#include <asm/proc-fns.h>
+void __check_kvm_seq(struct mm_struct *mm);
+
#if __LINUX_ARM_ARCH__ >= 6
/*
{
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
switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
+#ifdef CONFIG_MMU
+ unsigned int cpu = smp_processor_id();
+
if (prev != next) {
+ cpu_set(cpu, next->cpu_vm_mask);
check_context(next);
cpu_switch_mm(next->pgd, next);
+ if (cache_is_vivt())
+ cpu_clear(cpu, prev->cpu_vm_mask);
}
+#endif
}
#define deactivate_mm(tsk,mm) do { } while (0)
-
-static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
-{
- check_context(next);
- cpu_switch_mm(next->pgd, next);
-}
+#define activate_mm(prev,next) switch_mm(prev, next, NULL)
#endif