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2328826b MF |
1 | /* |
2 | * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions are met: | |
7 | * * Redistributions of source code must retain the above copyright | |
8 | * notice, this list of conditions and the following disclaimer. | |
9 | * * Redistributions in binary form must reproduce the above copyright | |
10 | * notice, this list of conditions and the following disclaimer in the | |
11 | * documentation and/or other materials provided with the distribution. | |
12 | * * Neither the name of the Open Source and Linux Lab nor the | |
13 | * names of its contributors may be used to endorse or promote products | |
14 | * derived from this software without specific prior written permission. | |
15 | * | |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
26 | */ | |
27 | ||
28 | #include "cpu.h" | |
29 | #include "dyngen-exec.h" | |
dedc5eae | 30 | #include "helpers.h" |
3580ecad | 31 | #include "host-utils.h" |
2328826b MF |
32 | |
33 | #define MMUSUFFIX _mmu | |
34 | ||
35 | #define SHIFT 0 | |
36 | #include "softmmu_template.h" | |
37 | ||
38 | #define SHIFT 1 | |
39 | #include "softmmu_template.h" | |
40 | ||
41 | #define SHIFT 2 | |
42 | #include "softmmu_template.h" | |
43 | ||
44 | #define SHIFT 3 | |
45 | #include "softmmu_template.h" | |
46 | ||
47 | void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr) | |
48 | { | |
49 | tlb_set_page(cpu_single_env, | |
50 | addr & ~(TARGET_PAGE_SIZE - 1), | |
51 | addr & ~(TARGET_PAGE_SIZE - 1), | |
52 | PAGE_READ | PAGE_WRITE | PAGE_EXEC, | |
53 | mmu_idx, TARGET_PAGE_SIZE); | |
54 | } | |
dedc5eae MF |
55 | |
56 | void HELPER(exception)(uint32_t excp) | |
57 | { | |
58 | env->exception_index = excp; | |
59 | cpu_loop_exit(env); | |
60 | } | |
3580ecad | 61 | |
40643d7c MF |
62 | void HELPER(exception_cause)(uint32_t pc, uint32_t cause) |
63 | { | |
64 | uint32_t vector; | |
65 | ||
66 | env->pc = pc; | |
67 | if (env->sregs[PS] & PS_EXCM) { | |
68 | if (env->config->ndepc) { | |
69 | env->sregs[DEPC] = pc; | |
70 | } else { | |
71 | env->sregs[EPC1] = pc; | |
72 | } | |
73 | vector = EXC_DOUBLE; | |
74 | } else { | |
75 | env->sregs[EPC1] = pc; | |
76 | vector = (env->sregs[PS] & PS_UM) ? EXC_USER : EXC_KERNEL; | |
77 | } | |
78 | ||
79 | env->sregs[EXCCAUSE] = cause; | |
80 | env->sregs[PS] |= PS_EXCM; | |
81 | ||
82 | HELPER(exception)(vector); | |
83 | } | |
84 | ||
85 | void HELPER(exception_cause_vaddr)(uint32_t pc, uint32_t cause, uint32_t vaddr) | |
86 | { | |
87 | env->sregs[EXCVADDR] = vaddr; | |
88 | HELPER(exception_cause)(pc, cause); | |
89 | } | |
90 | ||
3580ecad MF |
91 | uint32_t HELPER(nsa)(uint32_t v) |
92 | { | |
93 | if (v & 0x80000000) { | |
94 | v = ~v; | |
95 | } | |
96 | return v ? clz32(v) - 1 : 31; | |
97 | } | |
98 | ||
99 | uint32_t HELPER(nsau)(uint32_t v) | |
100 | { | |
101 | return v ? clz32(v) : 32; | |
102 | } |