| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 | |
| 14 | typedef 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 |
| 38 | extern int __nongpreldata cxn_pinned; |
| 39 | extern int cxn_pin_by_pid(pid_t pid); |
| 40 | #endif |
| 41 | |
| 42 | #endif /* _ASM_MMU_H */ |