LXR qemu/target-lm32/op

   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/char/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
  20void HELPER(raise_exception)(CPULM32State *env, uint32_t index)
  21{
  22    env->exception_index = index;
  23    cpu_loop_exit(env);
  24}
  25
  26void 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
  35void HELPER(wcsr_im)(CPULM32State *env, uint32_t im)
  36{
  37    lm32_pic_set_im(env->pic_state, im);
  38}
  39
  40void HELPER(wcsr_ip)(CPULM32State *env, uint32_t im)
  41{
  42    lm32_pic_set_ip(env->pic_state, im);
  43}
  44
  45void HELPER(wcsr_jtx)(CPULM32State *env, uint32_t jtx)
  46{
  47    lm32_juart_set_jtx(env->juart_state, jtx);
  48}
  49
  50void HELPER(wcsr_jrx)(CPULM32State *env, uint32_t jrx)
  51{
  52    lm32_juart_set_jrx(env->juart_state, jrx);
  53}
  54
  55uint32_t HELPER(rcsr_im)(CPULM32State *env)
  56{
  57    return lm32_pic_get_im(env->pic_state);
  58}
  59
  60uint32_t HELPER(rcsr_ip)(CPULM32State *env)
  61{
  62    return lm32_pic_get_ip(env->pic_state);
  63}
  64
  65uint32_t HELPER(rcsr_jtx)(CPULM32State *env)
  66{
  67    return lm32_juart_get_jtx(env->juart_state);
  68}
  69
  70uint32_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) */
  78void 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
  94