LXR qemu/target/moxie/cpu.h

   1/*
   2 *  Moxie emulation
   3 *
   4 *  Copyright (c) 2008, 2010, 2013 Anthony Green
   5 *
   6 * This library is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU Lesser General Public
   8 * License as published by the Free Software Foundation; either
   9 * version 2.1 of the License, or (at your option) any later version.
  10 *
  11 * This library is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * Lesser General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU Lesser General Public License
  17 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20#ifndef MOXIE_CPU_H
  21#define MOXIE_CPU_H
  22
  23#include "exec/cpu-defs.h"
  24
  25#define MOXIE_EX_DIV0        0
  26#define MOXIE_EX_BAD         1
  27#define MOXIE_EX_IRQ         2
  28#define MOXIE_EX_SWI         3
  29#define MOXIE_EX_MMU_MISS    4
  30#define MOXIE_EX_BREAK      16
  31
  32typedef struct CPUMoxieState {
  33
  34    uint32_t flags;               /* general execution flags */
  35    uint32_t gregs[16];           /* general registers */
  36    uint32_t sregs[256];          /* special registers */
  37    uint32_t pc;                  /* program counter */
  38    /* Instead of saving the cc value, we save the cmp arguments
  39       and compute cc on demand.  */
  40    uint32_t cc_a;                /* reg a for condition code calculation */
  41    uint32_t cc_b;                /* reg b for condition code calculation */
  42
  43    void *irq[8];
  44
  45    /* Fields up to this point are cleared by a CPU reset */
  46    struct {} end_reset_fields;
  47} CPUMoxieState;
  48
  49#include "qom/cpu.h"
  50
  51#define TYPE_MOXIE_CPU "moxie-cpu"
  52
  53#define MOXIE_CPU_CLASS(klass) \
  54    OBJECT_CLASS_CHECK(MoxieCPUClass, (klass), TYPE_MOXIE_CPU)
  55#define MOXIE_CPU(obj) \
  56    OBJECT_CHECK(MoxieCPU, (obj), TYPE_MOXIE_CPU)
  57#define MOXIE_CPU_GET_CLASS(obj) \
  58    OBJECT_GET_CLASS(MoxieCPUClass, (obj), TYPE_MOXIE_CPU)
  59
  60/**
  61 * MoxieCPUClass:
  62 * @parent_reset: The parent class' reset handler.
  63 *
  64 * A Moxie CPU model.
  65 */
  66typedef struct MoxieCPUClass {
  67    /*< private >*/
  68    CPUClass parent_class;
  69    /*< public >*/
  70
  71    DeviceRealize parent_realize;
  72    void (*parent_reset)(CPUState *cpu);
  73} MoxieCPUClass;
  74
  75/**
  76 * MoxieCPU:
  77 * @env: #CPUMoxieState
  78 *
  79 * A Moxie CPU.
  80 */
  81typedef struct MoxieCPU {
  82    /*< private >*/
  83    CPUState parent_obj;
  84    /*< public >*/
  85
  86    CPUNegativeOffsetState neg;
  87    CPUMoxieState env;
  88} MoxieCPU;
  89
  90
  91void moxie_cpu_do_interrupt(CPUState *cs);
  92void moxie_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
  93hwaddr moxie_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
  94void moxie_translate_init(void);
  95int cpu_moxie_signal_handler(int host_signum, void *pinfo,
  96                             void *puc);
  97
  98#define MOXIE_CPU_TYPE_SUFFIX "-" TYPE_MOXIE_CPU
  99#define MOXIE_CPU_TYPE_NAME(model) model MOXIE_CPU_TYPE_SUFFIX
 100#define CPU_RESOLVING_TYPE TYPE_MOXIE_CPU
 101
 102#define cpu_signal_handler cpu_moxie_signal_handler
 103
 104static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch)
 105{
 106    return 0;
 107}
 108
 109typedef CPUMoxieState CPUArchState;
 110typedef MoxieCPU ArchCPU;
 111
 112#include "exec/cpu-all.h"
 113
 114static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
 115                                        target_ulong *cs_base, uint32_t *flags)
 116{
 117    *pc = env->pc;
 118    *cs_base = 0;
 119    *flags = 0;
 120}
 121
 122bool moxie_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
 123                        MMUAccessType access_type, int mmu_idx,
 124                        bool probe, uintptr_t retaddr);
 125
 126#endif /* MOXIE_CPU_H */
 127