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1 | /* | |
2 | * CRIS helper routines | |
3 | * | |
4 | * Copyright (c) 2007 AXIS Communications | |
5 | * Written by Edgar E. Iglesias | |
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, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <assert.h> | |
23 | #include "exec.h" | |
24 | ||
25 | #define MMUSUFFIX _mmu | |
26 | #ifdef __s390__ | |
27 | # define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL)) | |
28 | #else | |
29 | # define GETPC() (__builtin_return_address(0)) | |
30 | #endif | |
31 | ||
32 | #define SHIFT 0 | |
33 | #include "softmmu_template.h" | |
34 | ||
35 | #define SHIFT 1 | |
36 | #include "softmmu_template.h" | |
37 | ||
38 | #define SHIFT 2 | |
39 | #include "softmmu_template.h" | |
40 | ||
41 | #define SHIFT 3 | |
42 | #include "softmmu_template.h" | |
43 | ||
44 | /* Try to fill the TLB and return an exception if error. If retaddr is | |
45 | NULL, it means that the function was called in C code (i.e. not | |
46 | from generated code or from helper.c) */ | |
47 | /* XXX: fix it to restore all registers */ | |
48 | void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr) | |
49 | { | |
50 | TranslationBlock *tb; | |
51 | CPUState *saved_env; | |
52 | unsigned long pc; | |
53 | int ret; | |
54 | ||
55 | /* XXX: hack to restore env in all cases, even if not called from | |
56 | generated code */ | |
57 | saved_env = env; | |
58 | env = cpu_single_env; | |
59 | ret = cpu_cris_handle_mmu_fault(env, addr, is_write, mmu_idx, 1); | |
60 | if (__builtin_expect(ret, 0)) { | |
61 | if (retaddr) { | |
62 | /* now we have a real cpu fault */ | |
63 | pc = (unsigned long)retaddr; | |
64 | tb = tb_find_pc(pc); | |
65 | if (tb) { | |
66 | /* the PC is inside the translated code. It means that we have | |
67 | a virtual CPU fault */ | |
68 | cpu_restore_state(tb, env, pc, NULL); | |
69 | } | |
70 | } | |
71 | cpu_loop_exit(); | |
72 | } | |
73 | env = saved_env; | |
74 | } | |
75 | ||
76 | void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, | |
77 | int is_asi) | |
78 | { | |
79 | ||
80 | } |