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1 | #include <assert.h> |
2 | #include "exec.h" | |
3 | #include "helper.h" | |
4 | #include "host-utils.h" | |
5 | ||
6 | #include "hw/lm32_pic.h" | |
7 | #include "hw/lm32_juart.h" | |
8 | ||
9 | #if !defined(CONFIG_USER_ONLY) | |
10 | #define MMUSUFFIX _mmu | |
11 | #define SHIFT 0 | |
12 | #include "softmmu_template.h" | |
13 | #define SHIFT 1 | |
14 | #include "softmmu_template.h" | |
15 | #define SHIFT 2 | |
16 | #include "softmmu_template.h" | |
17 | #define SHIFT 3 | |
18 | #include "softmmu_template.h" | |
19 | ||
20 | void helper_raise_exception(uint32_t index) | |
21 | { | |
22 | env->exception_index = index; | |
1162c041 | 23 | cpu_loop_exit(env); |
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24 | } |
25 | ||
26 | void helper_hlt(void) | |
27 | { | |
28 | env->halted = 1; | |
29 | env->exception_index = EXCP_HLT; | |
1162c041 | 30 | cpu_loop_exit(env); |
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31 | } |
32 | ||
33 | void helper_wcsr_im(uint32_t im) | |
34 | { | |
35 | lm32_pic_set_im(env->pic_state, im); | |
36 | } | |
37 | ||
38 | void helper_wcsr_ip(uint32_t im) | |
39 | { | |
40 | lm32_pic_set_ip(env->pic_state, im); | |
41 | } | |
42 | ||
43 | void helper_wcsr_jtx(uint32_t jtx) | |
44 | { | |
45 | lm32_juart_set_jtx(env->juart_state, jtx); | |
46 | } | |
47 | ||
48 | void helper_wcsr_jrx(uint32_t jrx) | |
49 | { | |
50 | lm32_juart_set_jrx(env->juart_state, jrx); | |
51 | } | |
52 | ||
53 | uint32_t helper_rcsr_im(void) | |
54 | { | |
55 | return lm32_pic_get_im(env->pic_state); | |
56 | } | |
57 | ||
58 | uint32_t helper_rcsr_ip(void) | |
59 | { | |
60 | return lm32_pic_get_ip(env->pic_state); | |
61 | } | |
62 | ||
63 | uint32_t helper_rcsr_jtx(void) | |
64 | { | |
65 | return lm32_juart_get_jtx(env->juart_state); | |
66 | } | |
67 | ||
68 | uint32_t helper_rcsr_jrx(void) | |
69 | { | |
70 | return lm32_juart_get_jrx(env->juart_state); | |
71 | } | |
72 | ||
73 | /* Try to fill the TLB and return an exception if error. If retaddr is | |
74 | NULL, it means that the function was called in C code (i.e. not | |
75 | from generated code or from helper.c) */ | |
76 | /* XXX: fix it to restore all registers */ | |
77 | void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr) | |
78 | { | |
79 | TranslationBlock *tb; | |
80 | CPUState *saved_env; | |
81 | unsigned long pc; | |
82 | int ret; | |
83 | ||
84 | /* XXX: hack to restore env in all cases, even if not called from | |
85 | generated code */ | |
86 | saved_env = env; | |
87 | env = cpu_single_env; | |
88 | ||
89 | ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx, 1); | |
90 | if (unlikely(ret)) { | |
91 | if (retaddr) { | |
92 | /* now we have a real cpu fault */ | |
93 | pc = (unsigned long)retaddr; | |
94 | tb = tb_find_pc(pc); | |
95 | if (tb) { | |
96 | /* the PC is inside the translated code. It means that we have | |
97 | a virtual CPU fault */ | |
618ba8e6 | 98 | cpu_restore_state(tb, env, pc); |
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99 | } |
100 | } | |
1162c041 | 101 | cpu_loop_exit(env); |
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102 | } |
103 | env = saved_env; | |
104 | } | |
105 | #endif | |
106 |