mmu.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* 
 3 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 4 */
 5
 6#ifndef __ARCH_UM_MMU_H
 7#define __ARCH_UM_MMU_H
 8
 9#include "linux/types.h"
10#include <linux/mutex.h>
11#include <linux/spinlock.h>
12#include <mm_id.h>
13
14typedef struct mm_context {
15	struct mm_id id;
16	struct mutex turnstile;
17
18	struct list_head list;
19
20	/* Address range in need of a TLB sync */
21	spinlock_t sync_tlb_lock;
22	unsigned long sync_tlb_range_from;
23	unsigned long sync_tlb_range_to;
24} mm_context_t;
25
26#define INIT_MM_CONTEXT(mm)						\
27	.context = {							\
28		.turnstile = __MUTEX_INITIALIZER(mm.context.turnstile),	\
29		.sync_tlb_lock = __SPIN_LOCK_INITIALIZER(mm.context.sync_tlb_lock), \
30	}
31
32#endif