From b4b6116a13633898cf868f2f103c96a90c4c20f8 Mon Sep 17 00:00:00 2001 From: Anton Arapov Date: Mon, 16 Apr 2012 10:05:28 +0200 Subject: fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84 Signed-off-by: Anton Arapov --- arch/sparc/include/asm/mmu_context_32.h | 42 +++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 arch/sparc/include/asm/mmu_context_32.h (limited to 'arch/sparc/include/asm/mmu_context_32.h') diff --git a/arch/sparc/include/asm/mmu_context_32.h b/arch/sparc/include/asm/mmu_context_32.h new file mode 100644 index 00000000000..671a997b9e6 --- /dev/null +++ b/arch/sparc/include/asm/mmu_context_32.h @@ -0,0 +1,42 @@ +#ifndef __SPARC_MMU_CONTEXT_H +#define __SPARC_MMU_CONTEXT_H + +#include + +#ifndef __ASSEMBLY__ + +#include + +static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + +/* + * Initialize a new mmu context. This is invoked when a new + * address space instance (unique or shared) is instantiated. + */ +#define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0) + +/* + * Destroy a dead context. This occurs when mmput drops the + * mm_users count to zero, the mmaps have been released, and + * all the page tables have been flushed. Our job is to destroy + * any remaining processor-specific state. + */ +BTFIXUPDEF_CALL(void, destroy_context, struct mm_struct *) + +#define destroy_context(mm) BTFIXUP_CALL(destroy_context)(mm) + +/* Switch the current MM context. */ +BTFIXUPDEF_CALL(void, switch_mm, struct mm_struct *, struct mm_struct *, struct task_struct *) + +#define switch_mm(old_mm, mm, tsk) BTFIXUP_CALL(switch_mm)(old_mm, mm, tsk) + +#define deactivate_mm(tsk,mm) do { } while (0) + +/* Activate a new MM instance for the current task. */ +#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL) + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC_MMU_CONTEXT_H) */ -- cgit