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Linux kernel mirror (for testing)
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1/* mmu.h: memory management context for FR-V with or without MMU support
2 *
3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#ifndef _ASM_MMU_H
12#define _ASM_MMU_H
13
14typedef struct {
15#ifdef CONFIG_MMU
16 struct list_head id_link; /* link in list of context ID owners */
17 unsigned short id; /* MMU context ID */
18 unsigned short id_busy; /* true if ID is in CXNR */
19 unsigned long itlb_cached_pge; /* [SCR0] PGE cached for insn TLB handler */
20 unsigned long itlb_ptd_mapping; /* [DAMR4] PTD mapping for itlb cached PGE */
21 unsigned long dtlb_cached_pge; /* [SCR1] PGE cached for data TLB handler */
22 unsigned long dtlb_ptd_mapping; /* [DAMR5] PTD mapping for dtlb cached PGE */
23
24#else
25 struct vm_list_struct *vmlist;
26 unsigned long end_brk;
27
28#endif
29
30#ifdef CONFIG_BINFMT_ELF_FDPIC
31 unsigned long exec_fdpic_loadmap;
32 unsigned long interp_fdpic_loadmap;
33#endif
34
35} mm_context_t;
36
37#ifdef CONFIG_MMU
38extern int __nongpreldata cxn_pinned;
39extern int cxn_pin_by_pid(pid_t pid);
40#endif
41
42#endif /* _ASM_MMU_H */