root / target-lm32 / op_helper.c @ 1de7afc9
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1 | 143e8951 | Michael Walle | #include <assert.h> |
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2 | 3e457172 | Blue Swirl | #include "cpu.h" |
3 | 143e8951 | Michael Walle | #include "helper.h" |
4 | 1de7afc9 | Paolo Bonzini | #include "qemu/host-utils.h" |
5 | 143e8951 | Michael Walle | |
6 | 143e8951 | Michael Walle | #include "hw/lm32_pic.h" |
7 | 143e8951 | Michael Walle | #include "hw/lm32_juart.h" |
8 | 143e8951 | Michael Walle | |
9 | 143e8951 | Michael Walle | #if !defined(CONFIG_USER_ONLY)
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10 | 143e8951 | Michael Walle | #define MMUSUFFIX _mmu
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11 | 143e8951 | Michael Walle | #define SHIFT 0 |
12 | 022c62cb | Paolo Bonzini | #include "exec/softmmu_template.h" |
13 | 143e8951 | Michael Walle | #define SHIFT 1 |
14 | 022c62cb | Paolo Bonzini | #include "exec/softmmu_template.h" |
15 | 143e8951 | Michael Walle | #define SHIFT 2 |
16 | 022c62cb | Paolo Bonzini | #include "exec/softmmu_template.h" |
17 | 143e8951 | Michael Walle | #define SHIFT 3 |
18 | 022c62cb | Paolo Bonzini | #include "exec/softmmu_template.h" |
19 | 143e8951 | Michael Walle | |
20 | 32ac0ca2 | Blue Swirl | void helper_raise_exception(CPULM32State *env, uint32_t index)
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21 | 143e8951 | Michael Walle | { |
22 | 143e8951 | Michael Walle | env->exception_index = index; |
23 | 1162c041 | Blue Swirl | cpu_loop_exit(env); |
24 | 143e8951 | Michael Walle | } |
25 | 143e8951 | Michael Walle | |
26 | 32ac0ca2 | Blue Swirl | void helper_hlt(CPULM32State *env)
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27 | 143e8951 | Michael Walle | { |
28 | 143e8951 | Michael Walle | env->halted = 1;
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29 | 143e8951 | Michael Walle | env->exception_index = EXCP_HLT; |
30 | 1162c041 | Blue Swirl | cpu_loop_exit(env); |
31 | 143e8951 | Michael Walle | } |
32 | 143e8951 | Michael Walle | |
33 | 32ac0ca2 | Blue Swirl | void helper_wcsr_im(CPULM32State *env, uint32_t im)
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34 | 143e8951 | Michael Walle | { |
35 | 143e8951 | Michael Walle | lm32_pic_set_im(env->pic_state, im); |
36 | 143e8951 | Michael Walle | } |
37 | 143e8951 | Michael Walle | |
38 | 32ac0ca2 | Blue Swirl | void helper_wcsr_ip(CPULM32State *env, uint32_t im)
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39 | 143e8951 | Michael Walle | { |
40 | 143e8951 | Michael Walle | lm32_pic_set_ip(env->pic_state, im); |
41 | 143e8951 | Michael Walle | } |
42 | 143e8951 | Michael Walle | |
43 | 32ac0ca2 | Blue Swirl | void helper_wcsr_jtx(CPULM32State *env, uint32_t jtx)
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44 | 143e8951 | Michael Walle | { |
45 | 143e8951 | Michael Walle | lm32_juart_set_jtx(env->juart_state, jtx); |
46 | 143e8951 | Michael Walle | } |
47 | 143e8951 | Michael Walle | |
48 | 32ac0ca2 | Blue Swirl | void helper_wcsr_jrx(CPULM32State *env, uint32_t jrx)
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49 | 143e8951 | Michael Walle | { |
50 | 143e8951 | Michael Walle | lm32_juart_set_jrx(env->juart_state, jrx); |
51 | 143e8951 | Michael Walle | } |
52 | 143e8951 | Michael Walle | |
53 | 32ac0ca2 | Blue Swirl | uint32_t helper_rcsr_im(CPULM32State *env) |
54 | 143e8951 | Michael Walle | { |
55 | 143e8951 | Michael Walle | return lm32_pic_get_im(env->pic_state);
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56 | 143e8951 | Michael Walle | } |
57 | 143e8951 | Michael Walle | |
58 | 32ac0ca2 | Blue Swirl | uint32_t helper_rcsr_ip(CPULM32State *env) |
59 | 143e8951 | Michael Walle | { |
60 | 143e8951 | Michael Walle | return lm32_pic_get_ip(env->pic_state);
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61 | 143e8951 | Michael Walle | } |
62 | 143e8951 | Michael Walle | |
63 | 32ac0ca2 | Blue Swirl | uint32_t helper_rcsr_jtx(CPULM32State *env) |
64 | 143e8951 | Michael Walle | { |
65 | 143e8951 | Michael Walle | return lm32_juart_get_jtx(env->juart_state);
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66 | 143e8951 | Michael Walle | } |
67 | 143e8951 | Michael Walle | |
68 | 32ac0ca2 | Blue Swirl | uint32_t helper_rcsr_jrx(CPULM32State *env) |
69 | 143e8951 | Michael Walle | { |
70 | 143e8951 | Michael Walle | return lm32_juart_get_jrx(env->juart_state);
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71 | 143e8951 | Michael Walle | } |
72 | 143e8951 | Michael Walle | |
73 | 143e8951 | Michael Walle | /* Try to fill the TLB and return an exception if error. If retaddr is
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74 | 143e8951 | Michael Walle | NULL, it means that the function was called in C code (i.e. not
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75 | 143e8951 | Michael Walle | from generated code or from helper.c) */
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76 | 32ac0ca2 | Blue Swirl | void tlb_fill(CPULM32State *env, target_ulong addr, int is_write, int mmu_idx, |
77 | 20503968 | Blue Swirl | uintptr_t retaddr) |
78 | 143e8951 | Michael Walle | { |
79 | 143e8951 | Michael Walle | int ret;
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80 | 143e8951 | Michael Walle | |
81 | 97b348e7 | Blue Swirl | ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx); |
82 | 143e8951 | Michael Walle | if (unlikely(ret)) {
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83 | 143e8951 | Michael Walle | if (retaddr) {
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84 | 143e8951 | Michael Walle | /* now we have a real cpu fault */
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85 | a8a826a3 | Blue Swirl | cpu_restore_state(env, retaddr); |
86 | 143e8951 | Michael Walle | } |
87 | 1162c041 | Blue Swirl | cpu_loop_exit(env); |
88 | 143e8951 | Michael Walle | } |
89 | 143e8951 | Michael Walle | } |
90 | 143e8951 | Michael Walle | #endif
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