arch/sparc/include/asm/mmu_context_32.h

Source file repositories/reference/linux-study-clean/arch/sparc/include/asm/mmu_context_32.h

File Facts

System
Linux kernel
Corpus path
arch/sparc/include/asm/mmu_context_32.h
Extension
.h
Size
1084 bytes
Lines
35
Domain
Architecture Layer
Bucket
arch/sparc
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __SPARC_MMU_CONTEXT_H
#define __SPARC_MMU_CONTEXT_H

#ifndef __ASSEMBLER__

#include <asm-generic/mm_hooks.h>

/* Initialize a new mmu context.  This is invoked when a new
 * address space instance (unique or shared) is instantiated.
 */
#define init_new_context init_new_context
int init_new_context(struct task_struct *tsk, struct mm_struct *mm);

/* 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.
 */
#define destroy_context destroy_context
void destroy_context(struct mm_struct *mm);

/* Switch the current MM context. */
void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
	       struct task_struct *tsk);

/* Activate a new MM instance for the current task. */
#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL)

#include <asm-generic/mmu_context.h>

#endif /* !(__ASSEMBLER__) */

#endif /* !(__SPARC_MMU_CONTEXT_H) */

Annotation

Implementation Notes