mmu_context_32.h (1082B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __SPARC_MMU_CONTEXT_H 3#define __SPARC_MMU_CONTEXT_H 4 5#ifndef __ASSEMBLY__ 6 7#include <asm-generic/mm_hooks.h> 8 9/* Initialize a new mmu context. This is invoked when a new 10 * address space instance (unique or shared) is instantiated. 11 */ 12#define init_new_context init_new_context 13int init_new_context(struct task_struct *tsk, struct mm_struct *mm); 14 15/* Destroy a dead context. This occurs when mmput drops the 16 * mm_users count to zero, the mmaps have been released, and 17 * all the page tables have been flushed. Our job is to destroy 18 * any remaining processor-specific state. 19 */ 20#define destroy_context destroy_context 21void destroy_context(struct mm_struct *mm); 22 23/* Switch the current MM context. */ 24void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, 25 struct task_struct *tsk); 26 27/* Activate a new MM instance for the current task. */ 28#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL) 29 30#include <asm-generic/mmu_context.h> 31 32#endif /* !(__ASSEMBLY__) */ 33 34#endif /* !(__SPARC_MMU_CONTEXT_H) */