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Annotation of qemu/target-lm32/op_helper.c, revision 1.1.1.3

1.1       root        1: #include <assert.h>
1.1.1.2   root        2: #include "cpu.h"
                      3: #include "dyngen-exec.h"
1.1       root        4: #include "helper.h"
                      5: #include "host-utils.h"
                      6: 
                      7: #include "hw/lm32_pic.h"
                      8: #include "hw/lm32_juart.h"
                      9: 
                     10: #if !defined(CONFIG_USER_ONLY)
                     11: #define MMUSUFFIX _mmu
                     12: #define SHIFT 0
                     13: #include "softmmu_template.h"
                     14: #define SHIFT 1
                     15: #include "softmmu_template.h"
                     16: #define SHIFT 2
                     17: #include "softmmu_template.h"
                     18: #define SHIFT 3
                     19: #include "softmmu_template.h"
                     20: 
                     21: void helper_raise_exception(uint32_t index)
                     22: {
                     23:     env->exception_index = index;
                     24:     cpu_loop_exit(env);
                     25: }
                     26: 
                     27: void helper_hlt(void)
                     28: {
                     29:     env->halted = 1;
                     30:     env->exception_index = EXCP_HLT;
                     31:     cpu_loop_exit(env);
                     32: }
                     33: 
                     34: void helper_wcsr_im(uint32_t im)
                     35: {
                     36:     lm32_pic_set_im(env->pic_state, im);
                     37: }
                     38: 
                     39: void helper_wcsr_ip(uint32_t im)
                     40: {
                     41:     lm32_pic_set_ip(env->pic_state, im);
                     42: }
                     43: 
                     44: void helper_wcsr_jtx(uint32_t jtx)
                     45: {
                     46:     lm32_juart_set_jtx(env->juart_state, jtx);
                     47: }
                     48: 
                     49: void helper_wcsr_jrx(uint32_t jrx)
                     50: {
                     51:     lm32_juart_set_jrx(env->juart_state, jrx);
                     52: }
                     53: 
                     54: uint32_t helper_rcsr_im(void)
                     55: {
                     56:     return lm32_pic_get_im(env->pic_state);
                     57: }
                     58: 
                     59: uint32_t helper_rcsr_ip(void)
                     60: {
                     61:     return lm32_pic_get_ip(env->pic_state);
                     62: }
                     63: 
                     64: uint32_t helper_rcsr_jtx(void)
                     65: {
                     66:     return lm32_juart_get_jtx(env->juart_state);
                     67: }
                     68: 
                     69: uint32_t helper_rcsr_jrx(void)
                     70: {
                     71:     return lm32_juart_get_jrx(env->juart_state);
                     72: }
                     73: 
                     74: /* Try to fill the TLB and return an exception if error. If retaddr is
                     75:    NULL, it means that the function was called in C code (i.e. not
                     76:    from generated code or from helper.c) */
                     77: /* XXX: fix it to restore all registers */
1.1.1.3 ! root       78: void tlb_fill(CPULM32State *env1, target_ulong addr, int is_write, int mmu_idx,
        !            79:               uintptr_t retaddr)
1.1       root       80: {
                     81:     TranslationBlock *tb;
1.1.1.3 ! root       82:     CPULM32State *saved_env;
1.1       root       83:     int ret;
                     84: 
                     85:     saved_env = env;
1.1.1.2   root       86:     env = env1;
1.1       root       87: 
1.1.1.2   root       88:     ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx);
1.1       root       89:     if (unlikely(ret)) {
                     90:         if (retaddr) {
                     91:             /* now we have a real cpu fault */
1.1.1.3 ! root       92:             tb = tb_find_pc(retaddr);
1.1       root       93:             if (tb) {
                     94:                 /* the PC is inside the translated code. It means that we have
                     95:                    a virtual CPU fault */
1.1.1.3 ! root       96:                 cpu_restore_state(tb, env, retaddr);
1.1       root       97:             }
                     98:         }
                     99:         cpu_loop_exit(env);
                    100:     }
                    101:     env = saved_env;
                    102: }
                    103: #endif
                    104: 

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