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1 | #include <assert.h> | |
2 | #include "cpu.h" | |
3 | #include "helper.h" | |
4 | #include "qemu/host-utils.h" | |
5 | ||
6 | #include "hw/lm32/lm32_pic.h" | |
7 | #include "hw/lm32/lm32_juart.h" | |
8 | ||
9 | #if !defined(CONFIG_USER_ONLY) | |
10 | #define MMUSUFFIX _mmu | |
11 | #define SHIFT 0 | |
12 | #include "exec/softmmu_template.h" | |
13 | #define SHIFT 1 | |
14 | #include "exec/softmmu_template.h" | |
15 | #define SHIFT 2 | |
16 | #include "exec/softmmu_template.h" | |
17 | #define SHIFT 3 | |
18 | #include "exec/softmmu_template.h" | |
19 | ||
20 | void HELPER(raise_exception)(CPULM32State *env, uint32_t index) | |
21 | { | |
22 | env->exception_index = index; | |
23 | cpu_loop_exit(env); | |
24 | } | |
25 | ||
26 | void HELPER(hlt)(CPULM32State *env) | |
27 | { | |
28 | CPUState *cs = CPU(lm32_env_get_cpu(env)); | |
29 | ||
30 | cs->halted = 1; | |
31 | env->exception_index = EXCP_HLT; | |
32 | cpu_loop_exit(env); | |
33 | } | |
34 | ||
35 | void HELPER(wcsr_im)(CPULM32State *env, uint32_t im) | |
36 | { | |
37 | lm32_pic_set_im(env->pic_state, im); | |
38 | } | |
39 | ||
40 | void HELPER(wcsr_ip)(CPULM32State *env, uint32_t im) | |
41 | { | |
42 | lm32_pic_set_ip(env->pic_state, im); | |
43 | } | |
44 | ||
45 | void HELPER(wcsr_jtx)(CPULM32State *env, uint32_t jtx) | |
46 | { | |
47 | lm32_juart_set_jtx(env->juart_state, jtx); | |
48 | } | |
49 | ||
50 | void HELPER(wcsr_jrx)(CPULM32State *env, uint32_t jrx) | |
51 | { | |
52 | lm32_juart_set_jrx(env->juart_state, jrx); | |
53 | } | |
54 | ||
55 | uint32_t HELPER(rcsr_im)(CPULM32State *env) | |
56 | { | |
57 | return lm32_pic_get_im(env->pic_state); | |
58 | } | |
59 | ||
60 | uint32_t HELPER(rcsr_ip)(CPULM32State *env) | |
61 | { | |
62 | return lm32_pic_get_ip(env->pic_state); | |
63 | } | |
64 | ||
65 | uint32_t HELPER(rcsr_jtx)(CPULM32State *env) | |
66 | { | |
67 | return lm32_juart_get_jtx(env->juart_state); | |
68 | } | |
69 | ||
70 | uint32_t HELPER(rcsr_jrx)(CPULM32State *env) | |
71 | { | |
72 | return lm32_juart_get_jrx(env->juart_state); | |
73 | } | |
74 | ||
75 | /* Try to fill the TLB and return an exception if error. If retaddr is | |
76 | NULL, it means that the function was called in C code (i.e. not | |
77 | from generated code or from helper.c) */ | |
78 | void tlb_fill(CPULM32State *env, target_ulong addr, int is_write, int mmu_idx, | |
79 | uintptr_t retaddr) | |
80 | { | |
81 | int ret; | |
82 | ||
83 | ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx); | |
84 | if (unlikely(ret)) { | |
85 | if (retaddr) { | |
86 | /* now we have a real cpu fault */ | |
87 | cpu_restore_state(env, retaddr); | |
88 | } | |
89 | cpu_loop_exit(env); | |
90 | } | |
91 | } | |
92 | #endif | |
93 |