mmu.h

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/* mmu.h: memory management context for FR-V with or without MMU support
 *
 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells ([email protected])
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */
#ifndef _ASM_MMU_H
#define _ASM_MMU_H

typedef struct {
#ifdef CONFIG_MMU
    struct list_head id_link;       /* link in list of context ID owners */
    unsigned short  id;         /* MMU context ID */
    unsigned short  id_busy;        /* true if ID is in CXNR */
    unsigned long   itlb_cached_pge;    /* [SCR0] PGE cached for insn TLB handler */
    unsigned long   itlb_ptd_mapping;   /* [DAMR4] PTD mapping for itlb cached PGE */
    unsigned long   dtlb_cached_pge;    /* [SCR1] PGE cached for data TLB handler */
    unsigned long   dtlb_ptd_mapping;   /* [DAMR5] PTD mapping for dtlb cached PGE */

#else
    unsigned long       end_brk;

#endif

#ifdef CONFIG_BINFMT_ELF_FDPIC
    unsigned long   exec_fdpic_loadmap;
    unsigned long   interp_fdpic_loadmap;
#endif

} mm_context_t;

#ifdef CONFIG_MMU
extern int __nongpreldata cxn_pinned;
extern int cxn_pin_by_pid(pid_t pid);
#endif

#endif /* _ASM_MMU_H */