/* SPDX-License-Identifier: GPL-2.0 */
/* 
 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 */

#ifndef __ARCH_UM_MMU_H
#define __ARCH_UM_MMU_H

#include "linux/types.h"
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <mm_id.h>

typedef struct mm_context {
        struct mm_id id;
        struct mutex turnstile;

        struct list_head list;

        /* Address range in need of a TLB sync */
        spinlock_t sync_tlb_lock;
        unsigned long sync_tlb_range_from;
        unsigned long sync_tlb_range_to;
} mm_context_t;

#define INIT_MM_CONTEXT(mm)                                             \
        .context = {                                                    \
                .turnstile = __MUTEX_INITIALIZER(mm.context.turnstile), \
                .sync_tlb_lock = __SPIN_LOCK_INITIALIZER(mm.context.sync_tlb_lock), \
        }

#endif