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 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 General Public License
  17 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19#ifndef _CPU_MOXIE_H
  20#define _CPU_MOXIE_H
  21
  22#include "qemu-common.h"
  23
  24#define TARGET_LONG_BITS 32
  25
  26#define CPUArchState struct CPUMoxieState
  27
  28#define MOXIE_EX_DIV0        0
  29#define MOXIE_EX_BAD         1
  30#define MOXIE_EX_IRQ         2
  31#define MOXIE_EX_SWI         3
  32#define MOXIE_EX_MMU_MISS    4
  33#define MOXIE_EX_BREAK      16
  34
  35#include "exec/cpu-defs.h"
  36#include "fpu/softfloat.h"
  37
  38#define TARGET_PAGE_BITS 12     /* 4k */
  39
  40#define TARGET_PHYS_ADDR_SPACE_BITS 32
  41#define TARGET_VIRT_ADDR_SPACE_BITS 32
  42
  43#define NB_MMU_MODES 1
  44
  45typedef struct CPUMoxieState {
  46
  47    uint32_t flags;               /* general execution flags */
  48    uint32_t gregs[16];           /* general registers */
  49    uint32_t sregs[256];          /* special registers */
  50    uint32_t pc;                  /* program counter */
  51    /* Instead of saving the cc value, we save the cmp arguments
  52       and compute cc on demand.  */
  53    uint32_t cc_a;                /* reg a for condition code calculation */
  54    uint32_t cc_b;                /* reg b for condition code calculation */
  55
  56    void *irq[8];
  57
  58    CPU_COMMON
  59
  60} CPUMoxieState;
  61
  62#include "qom/cpu.h"
  63
  64#define TYPE_MOXIE_CPU "moxie-cpu"
  65
  66#define MOXIE_CPU_CLASS(klass) \
  67    OBJECT_CLASS_CHECK(MoxieCPUClass, (klass), TYPE_MOXIE_CPU)
  68#define MOXIE_CPU(obj) \
  69    OBJECT_CHECK(MoxieCPU, (obj), TYPE_MOXIE_CPU)
  70#define MOXIE_CPU_GET_CLASS(obj) \
  71    OBJECT_GET_CLASS(MoxieCPUClass, (obj), TYPE_MOXIE_CPU)
  72
  73/**
  74 * MoxieCPUClass:
  75 * @parent_reset: The parent class' reset handler.
  76 *
  77 * A Moxie CPU model.
  78 */
  79typedef struct MoxieCPUClass {
  80    /*< private >*/
  81    CPUClass parent_class;
  82    /*< public >*/
  83
  84    DeviceRealize parent_realize;
  85    void (*parent_reset)(CPUState *cpu);
  86} MoxieCPUClass;
  87
  88/**
  89 * MoxieCPU:
  90 * @env: #CPUMoxieState
  91 *
  92 * A Moxie CPU.
  93 */
  94typedef struct MoxieCPU {
  95    /*< private >*/
  96    CPUState parent_obj;
  97    /*< public >*/
  98
  99    CPUMoxieState env;
 100} MoxieCPU;
 101
 102static inline MoxieCPU *moxie_env_get_cpu(CPUMoxieState *env)
 103{
 104    return container_of(env, MoxieCPU, env);
 105}
 106
 107#define ENV_GET_CPU(e) CPU(moxie_env_get_cpu(e))
 108
 109#define ENV_OFFSET offsetof(MoxieCPU, env)
 110
 111MoxieCPU *cpu_moxie_init(const char *cpu_model);
 112int cpu_moxie_exec(CPUState *cpu);
 113void moxie_cpu_do_interrupt(CPUState *cs);
 114void moxie_cpu_dump_state(CPUState *cpu, FILE *f,
 115                          fprintf_function cpu_fprintf, int flags);
 116hwaddr moxie_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 117void moxie_translate_init(void);
 118int cpu_moxie_signal_handler(int host_signum, void *pinfo,
 119                             void *puc);
 120
 121#define cpu_init(cpu_model) CPU(cpu_moxie_init(cpu_model))
 122
 123#define cpu_exec cpu_moxie_exec
 124#define cpu_signal_handler cpu_moxie_signal_handler
 125
 126static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch)
 127{
 128    return 0;
 129}
 130
 131#include "exec/cpu-all.h"
 132#include "exec/exec-all.h"
 133
 134static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
 135                                        target_ulong *cs_base, int *flags)
 136{
 137    *pc = env->pc;
 138    *cs_base = 0;
 139    *flags = 0;
 140}
 141
 142int moxie_cpu_handle_mmu_fault(CPUState *cpu, vaddr address,
 143                               int rw, int mmu_idx);
 144
 145#endif /* _CPU_MOXIE_H */
 146