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#include "qom/object.h"
  25
  26#define MOXIE_EX_DIV0        0
  27#define MOXIE_EX_BAD         1
  28#define MOXIE_EX_IRQ         2
  29#define MOXIE_EX_SWI         3
  30#define MOXIE_EX_MMU_MISS    4
  31#define MOXIE_EX_BREAK      16
  32
  33typedef struct CPUMoxieState {
  34
  35    uint32_t flags;               /* general execution flags */
  36    uint32_t gregs[16];           /* general registers */
  37    uint32_t sregs[256];          /* special registers */
  38    uint32_t pc;                  /* program counter */
  39    /* Instead of saving the cc value, we save the cmp arguments
  40       and compute cc on demand.  */
  41    uint32_t cc_a;                /* reg a for condition code calculation */
  42    uint32_t cc_b;                /* reg b for condition code calculation */
  43
  44    void *irq[8];
  45
  46    /* Fields up to this point are cleared by a CPU reset */
  47    struct {} end_reset_fields;
  48} CPUMoxieState;
  49
  50#include "hw/core/cpu.h"
  51
  52#define TYPE_MOXIE_CPU "moxie-cpu"
  53
  54OBJECT_DECLARE_TYPE(MoxieCPU, MoxieCPUClass,
  55                    MOXIE_CPU)
  56
  57/**
  58 * MoxieCPUClass:
  59 * @parent_reset: The parent class' reset handler.
  60 *
  61 * A Moxie CPU model.
  62 */
  63struct MoxieCPUClass {
  64    /*< private >*/
  65    CPUClass parent_class;
  66    /*< public >*/
  67
  68    DeviceRealize parent_realize;
  69    DeviceReset parent_reset;
  70};
  71
  72/**
  73 * MoxieCPU:
  74 * @env: #CPUMoxieState
  75 *
  76 * A Moxie CPU.
  77 */
  78struct MoxieCPU {
  79    /*< private >*/
  80    CPUState parent_obj;
  81    /*< public >*/
  82
  83    CPUNegativeOffsetState neg;
  84    CPUMoxieState env;
  85};
  86
  87
  88void moxie_cpu_do_interrupt(CPUState *cs);
  89void moxie_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
  90hwaddr moxie_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
  91void moxie_translate_init(void);
  92int cpu_moxie_signal_handler(int host_signum, void *pinfo,
  93                             void *puc);
  94
  95#define MOXIE_CPU_TYPE_SUFFIX "-" TYPE_MOXIE_CPU
  96#define MOXIE_CPU_TYPE_NAME(model) model MOXIE_CPU_TYPE_SUFFIX
  97#define CPU_RESOLVING_TYPE TYPE_MOXIE_CPU
  98
  99#define cpu_signal_handler cpu_moxie_signal_handler
 100
 101static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch)
 102{
 103    return 0;
 104}
 105
 106typedef CPUMoxieState CPUArchState;
 107typedef MoxieCPU ArchCPU;
 108
 109#include "exec/cpu-all.h"
 110
 111static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
 112                                        target_ulong *cs_base, uint32_t *flags)
 113{
 114    *pc = env->pc;
 115    *cs_base = 0;
 116    *flags = 0;
 117}
 118
 119bool moxie_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
 120                        MMUAccessType access_type, int mmu_idx,
 121                        bool probe, uintptr_t retaddr);
 122
 123#endif /* MOXIE_CPU_H */
 124