target-xtensa: add target stubs

[qemu.git] / target-xtensa / cpu.h

/*
 * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Open Source and Linux Lab nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef CPU_XTENSA_H
#define CPU_XTENSA_H

#define TARGET_LONG_BITS 32
#define ELF_MACHINE EM_XTENSA

#define CPUState struct CPUXtensaState

#include "config.h"
#include "qemu-common.h"
#include "cpu-defs.h"

#define TARGET_HAS_ICE 1

#define NB_MMU_MODES 4

#define TARGET_PHYS_ADDR_SPACE_BITS 32
#define TARGET_VIRT_ADDR_SPACE_BITS 32
#define TARGET_PAGE_BITS 12

typedef struct CPUXtensaState {
    uint32_t regs[16];
    uint32_t pc;
    uint32_t sregs[256];

    CPU_COMMON
} CPUXtensaState;

#define cpu_init cpu_xtensa_init
#define cpu_exec cpu_xtensa_exec
#define cpu_gen_code cpu_xtensa_gen_code
#define cpu_signal_handler cpu_xtensa_signal_handler
#define cpu_list xtensa_cpu_list

CPUXtensaState *cpu_xtensa_init(const char *cpu_model);
void xtensa_translate_init(void);
int cpu_xtensa_exec(CPUXtensaState *s);
void do_interrupt(CPUXtensaState *s);
int cpu_xtensa_signal_handler(int host_signum, void *pinfo, void *puc);
void xtensa_cpu_list(FILE *f, fprintf_function cpu_fprintf);

static inline int cpu_mmu_index(CPUState *env)
{
    return 0;
}

static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc,
        target_ulong *cs_base, int *flags)
{
    *pc = env->pc;
    *cs_base = 0;
    *flags = 0;
}

#include "cpu-all.h"
#include "exec-all.h"

static inline int cpu_has_work(CPUState *env)
{
    return 1;
}

static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
{
    env->pc = tb->pc;
}

#endif