1#ifndef __SPARC_MMU_CONTEXT_H 2#define __SPARC_MMU_CONTEXT_H 3 4#include <asm/btfixup.h> 5 6#ifndef __ASSEMBLY__ 7 8static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk, unsigned cpu) 9{ 10} 11 12/* 13 * Initialize a new mmu context. This is invoked when a new 14 * address space instance (unique or shared) is instantiated. 15 */ 16#define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0) 17 18/* 19 * Destroy a dead context. This occurs when mmput drops the 20 * mm_users count to zero, the mmaps have been released, and 21 * all the page tables have been flushed. Our job is to destroy 22 * any remaining processor-specific state. 23 */ 24BTFIXUPDEF_CALL(void, destroy_context, struct mm_struct *) 25 26#define destroy_context(mm) BTFIXUP_CALL(destroy_context)(mm) 27 28/* Switch the current MM context. */ 29BTFIXUPDEF_CALL(void, switch_mm, struct mm_struct *, struct mm_struct *, struct task_struct *, int) 30 31#define switch_mm(old_mm, mm, tsk, cpu) BTFIXUP_CALL(switch_mm)(old_mm, mm, tsk, cpu) 32 33/* Activate a new MM instance for the current task. */ 34#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL, smp_processor_id()) 35 36#endif /* !(__ASSEMBLY__) */ 37 38#endif /* !(__SPARC_MMU_CONTEXT_H) */ 39