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e67db06e JL |
1 | /* |
2 | * OpenRISC MMU helper routines | |
3 | * | |
4 | * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com> | |
5 | * Zhizhou Zhang <etouzh@gmail.com> | |
6 | * | |
7 | * This library is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * This library is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
ed2decc6 | 21 | #include "qemu/osdep.h" |
e67db06e | 22 | #include "cpu.h" |
f08b6170 | 23 | #include "exec/cpu_ldst.h" |
e67db06e JL |
24 | |
25 | #ifndef CONFIG_USER_ONLY | |
e67db06e | 26 | |
d5a11fef | 27 | void tlb_fill(CPUState *cs, target_ulong addr, int is_write, |
e67db06e JL |
28 | int mmu_idx, uintptr_t retaddr) |
29 | { | |
726fe045 JL |
30 | int ret; |
31 | ||
d5a11fef | 32 | ret = openrisc_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx); |
726fe045 JL |
33 | |
34 | if (ret) { | |
35 | if (retaddr) { | |
36 | /* now we have a real cpu fault. */ | |
3f38f309 | 37 | cpu_restore_state(cs, retaddr); |
726fe045 JL |
38 | } |
39 | /* Raise Exception. */ | |
5638d180 | 40 | cpu_loop_exit(cs); |
726fe045 | 41 | } |
e67db06e JL |
42 | } |
43 | #endif |