[mirror_qemu.git] / target / sh4 / cpu.h

/*
 *  SH4 emulation
 *
 *  Copyright (c) 2005 Samuel Tardieu
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#ifndef SH4_CPU_H
#define SH4_CPU_H

#include "cpu-qom.h"
#include "exec/cpu-defs.h"
#include "qemu/cpu-float.h"

/* CPU Subtypes */
#define SH_CPU_SH7750  (1 << 0)
#define SH_CPU_SH7750S (1 << 1)
#define SH_CPU_SH7750R (1 << 2)
#define SH_CPU_SH7751  (1 << 3)
#define SH_CPU_SH7751R (1 << 4)
#define SH_CPU_SH7785  (1 << 5)
#define SH_CPU_SH7750_ALL (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7750R)
#define SH_CPU_SH7751_ALL (SH_CPU_SH7751 | SH_CPU_SH7751R)

#define SR_MD 30
#define SR_RB 29
#define SR_BL 28
#define SR_FD 15
#define SR_M  9
#define SR_Q  8
#define SR_I3 7
#define SR_I2 6
#define SR_I1 5
#define SR_I0 4
#define SR_S  1
#define SR_T  0

#define FPSCR_MASK             (0x003fffff)
#define FPSCR_FR               (1 << 21)
#define FPSCR_SZ               (1 << 20)
#define FPSCR_PR               (1 << 19)
#define FPSCR_DN               (1 << 18)
#define FPSCR_CAUSE_MASK       (0x3f << 12)
#define FPSCR_CAUSE_SHIFT      (12)
#define FPSCR_CAUSE_E          (1 << 17)
#define FPSCR_CAUSE_V          (1 << 16)
#define FPSCR_CAUSE_Z          (1 << 15)
#define FPSCR_CAUSE_O          (1 << 14)
#define FPSCR_CAUSE_U          (1 << 13)
#define FPSCR_CAUSE_I          (1 << 12)
#define FPSCR_ENABLE_MASK      (0x1f << 7)
#define FPSCR_ENABLE_SHIFT     (7)
#define FPSCR_ENABLE_V         (1 << 11)
#define FPSCR_ENABLE_Z         (1 << 10)
#define FPSCR_ENABLE_O         (1 << 9)
#define FPSCR_ENABLE_U         (1 << 8)
#define FPSCR_ENABLE_I         (1 << 7)
#define FPSCR_FLAG_MASK        (0x1f << 2)
#define FPSCR_FLAG_SHIFT       (2)
#define FPSCR_FLAG_V           (1 << 6)
#define FPSCR_FLAG_Z           (1 << 5)
#define FPSCR_FLAG_O           (1 << 4)
#define FPSCR_FLAG_U           (1 << 3)
#define FPSCR_FLAG_I           (1 << 2)
#define FPSCR_RM_MASK          (0x03 << 0)
#define FPSCR_RM_NEAREST       (0 << 0)
#define FPSCR_RM_ZERO          (1 << 0)

#define TB_FLAG_DELAY_SLOT       (1 << 0)
#define TB_FLAG_DELAY_SLOT_COND  (1 << 1)
#define TB_FLAG_DELAY_SLOT_RTE   (1 << 2)
#define TB_FLAG_PENDING_MOVCA    (1 << 3)
#define TB_FLAG_GUSA_SHIFT       4                      /* [11:4] */
#define TB_FLAG_GUSA_EXCLUSIVE   (1 << 12)
#define TB_FLAG_UNALIGN          (1 << 13)
#define TB_FLAG_SR_FD            (1 << SR_FD)           /* 15 */
#define TB_FLAG_FPSCR_PR         FPSCR_PR               /* 19 */
#define TB_FLAG_FPSCR_SZ         FPSCR_SZ               /* 20 */
#define TB_FLAG_FPSCR_FR         FPSCR_FR               /* 21 */
#define TB_FLAG_SR_RB            (1 << SR_RB)           /* 29 */
#define TB_FLAG_SR_MD            (1 << SR_MD)           /* 30 */

#define TB_FLAG_DELAY_SLOT_MASK  (TB_FLAG_DELAY_SLOT |       \
                                  TB_FLAG_DELAY_SLOT_COND |  \
                                  TB_FLAG_DELAY_SLOT_RTE)
#define TB_FLAG_GUSA_MASK        ((0xff << TB_FLAG_GUSA_SHIFT) | \
                                  TB_FLAG_GUSA_EXCLUSIVE)
#define TB_FLAG_FPSCR_MASK       (TB_FLAG_FPSCR_PR | \
                                  TB_FLAG_FPSCR_SZ | \
                                  TB_FLAG_FPSCR_FR)
#define TB_FLAG_SR_MASK          (TB_FLAG_SR_FD | \
                                  TB_FLAG_SR_RB | \
                                  TB_FLAG_SR_MD)
#define TB_FLAG_ENVFLAGS_MASK    (TB_FLAG_DELAY_SLOT_MASK | \
                                  TB_FLAG_GUSA_MASK)

typedef struct tlb_t {
    uint32_t vpn;		/* virtual page number */
    uint32_t ppn;		/* physical page number */
    uint32_t size;		/* mapped page size in bytes */
    uint8_t asid;		/* address space identifier */
    uint8_t v:1;		/* validity */
    uint8_t sz:2;		/* page size */
    uint8_t sh:1;		/* share status */
    uint8_t c:1;		/* cacheability */
    uint8_t pr:2;		/* protection key */
    uint8_t d:1;		/* dirty */
    uint8_t wt:1;		/* write through */
    uint8_t sa:3;		/* space attribute (PCMCIA) */
    uint8_t tc:1;		/* timing control */
} tlb_t;

#define UTLB_SIZE 64
#define ITLB_SIZE 4

#define TARGET_INSN_START_EXTRA_WORDS 1

enum sh_features {
    SH_FEATURE_SH4A = 1,
    SH_FEATURE_BCR3_AND_BCR4 = 2,
};

typedef struct memory_content {
    uint32_t address;
    uint32_t value;
    struct memory_content *next;
} memory_content;

typedef struct CPUArchState {
    uint32_t flags;		/* general execution flags */
    uint32_t gregs[24];		/* general registers */
    float32 fregs[32];		/* floating point registers */
    uint32_t sr;                /* status register (with T split out) */
    uint32_t sr_m;              /* M bit of status register */
    uint32_t sr_q;              /* Q bit of status register */
    uint32_t sr_t;              /* T bit of status register */
    uint32_t ssr;		/* saved status register */
    uint32_t spc;		/* saved program counter */
    uint32_t gbr;		/* global base register */
    uint32_t vbr;		/* vector base register */
    uint32_t sgr;		/* saved global register 15 */
    uint32_t dbr;		/* debug base register */
    uint32_t pc;		/* program counter */
    uint32_t delayed_pc;        /* target of delayed branch */
    uint32_t delayed_cond;      /* condition of delayed branch */
    uint32_t mach;		/* multiply and accumulate high */
    uint32_t macl;		/* multiply and accumulate low */
    uint32_t pr;		/* procedure register */
    uint32_t fpscr;		/* floating point status/control register */
    uint32_t fpul;		/* floating point communication register */

    /* float point status register */
    float_status fp_status;

    /* Those belong to the specific unit (SH7750) but are handled here */
    uint32_t mmucr;		/* MMU control register */
    uint32_t pteh;		/* page table entry high register */
    uint32_t ptel;		/* page table entry low register */
    uint32_t ptea;		/* page table entry assistance register */
    uint32_t ttb;               /* translation table base register */
    uint32_t tea;		/* TLB exception address register */
    uint32_t tra;		/* TRAPA exception register */
    uint32_t expevt;		/* exception event register */
    uint32_t intevt;		/* interrupt event register */

    tlb_t itlb[ITLB_SIZE];	/* instruction translation table */
    tlb_t utlb[UTLB_SIZE];	/* unified translation table */

    /* LDST = LOCK_ADDR != -1.  */
    uint32_t lock_addr;
    uint32_t lock_value;

    /* Fields up to this point are cleared by a CPU reset */
    struct {} end_reset_fields;

    /* Fields from here on are preserved over CPU reset. */
    int id;			/* CPU model */

    /* The features that we should emulate. See sh_features above.  */
    uint32_t features;

    void *intc_handle;
    int in_sleep;		/* SR_BL ignored during sleep */
    memory_content *movcal_backup;
    memory_content **movcal_backup_tail;
} CPUSH4State;

/**
 * SuperHCPU:
 * @env: #CPUSH4State
 *
 * A SuperH CPU.
 */
struct ArchCPU {
    /*< private >*/
    CPUState parent_obj;
    /*< public >*/

    CPUNegativeOffsetState neg;
    CPUSH4State env;
};


void superh_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
hwaddr superh_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
int superh_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
int superh_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
G_NORETURN void superh_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
                                               MMUAccessType access_type, int mmu_idx,
                                               uintptr_t retaddr);

void sh4_translate_init(void);
void sh4_cpu_list(void);

#if !defined(CONFIG_USER_ONLY)
bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                         MMUAccessType access_type, int mmu_idx,
                         bool probe, uintptr_t retaddr);
void superh_cpu_do_interrupt(CPUState *cpu);
bool superh_cpu_exec_interrupt(CPUState *cpu, int int_req);
void cpu_sh4_invalidate_tlb(CPUSH4State *s);
uint32_t cpu_sh4_read_mmaped_itlb_addr(CPUSH4State *s,
                                       hwaddr addr);
void cpu_sh4_write_mmaped_itlb_addr(CPUSH4State *s, hwaddr addr,
                                    uint32_t mem_value);
uint32_t cpu_sh4_read_mmaped_itlb_data(CPUSH4State *s,
                                       hwaddr addr);
void cpu_sh4_write_mmaped_itlb_data(CPUSH4State *s, hwaddr addr,
                                    uint32_t mem_value);
uint32_t cpu_sh4_read_mmaped_utlb_addr(CPUSH4State *s,
                                       hwaddr addr);
void cpu_sh4_write_mmaped_utlb_addr(CPUSH4State *s, hwaddr addr,
                                    uint32_t mem_value);
uint32_t cpu_sh4_read_mmaped_utlb_data(CPUSH4State *s,
                                       hwaddr addr);
void cpu_sh4_write_mmaped_utlb_data(CPUSH4State *s, hwaddr addr,
                                    uint32_t mem_value);
#endif

int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr);

void cpu_load_tlb(CPUSH4State * env);

#define SUPERH_CPU_TYPE_SUFFIX "-" TYPE_SUPERH_CPU
#define SUPERH_CPU_TYPE_NAME(model) model SUPERH_CPU_TYPE_SUFFIX
#define CPU_RESOLVING_TYPE TYPE_SUPERH_CPU

#define cpu_list sh4_cpu_list

/* MMU modes definitions */
#define MMU_USER_IDX 1
static inline int cpu_mmu_index (CPUSH4State *env, bool ifetch)
{
    /* The instruction in a RTE delay slot is fetched in privileged
       mode, but executed in user mode.  */
    if (ifetch && (env->flags & TB_FLAG_DELAY_SLOT_RTE)) {
        return 0;
    } else {
        return (env->sr & (1u << SR_MD)) == 0 ? 1 : 0;
    }
}

#include "exec/cpu-all.h"

/* MMU control register */
#define MMUCR    0x1F000010
#define MMUCR_AT (1<<0)
#define MMUCR_TI (1<<2)
#define MMUCR_SV (1<<8)
#define MMUCR_URC_BITS (6)
#define MMUCR_URC_OFFSET (10)
#define MMUCR_URC_SIZE (1 << MMUCR_URC_BITS)
#define MMUCR_URC_MASK (((MMUCR_URC_SIZE) - 1) << MMUCR_URC_OFFSET)
static inline int cpu_mmucr_urc (uint32_t mmucr)
{
    return ((mmucr & MMUCR_URC_MASK) >> MMUCR_URC_OFFSET);
}

/* PTEH : Page Translation Entry High register */
#define PTEH_ASID_BITS (8)
#define PTEH_ASID_SIZE (1 << PTEH_ASID_BITS)
#define PTEH_ASID_MASK (PTEH_ASID_SIZE - 1)
#define cpu_pteh_asid(pteh) ((pteh) & PTEH_ASID_MASK)
#define PTEH_VPN_BITS (22)
#define PTEH_VPN_OFFSET (10)
#define PTEH_VPN_SIZE (1 << PTEH_VPN_BITS)
#define PTEH_VPN_MASK (((PTEH_VPN_SIZE) - 1) << PTEH_VPN_OFFSET)
static inline int cpu_pteh_vpn (uint32_t pteh)
{
    return ((pteh & PTEH_VPN_MASK) >> PTEH_VPN_OFFSET);
}

/* PTEL : Page Translation Entry Low register */
#define PTEL_V        (1 << 8)
#define cpu_ptel_v(ptel) (((ptel) & PTEL_V) >> 8)
#define PTEL_C        (1 << 3)
#define cpu_ptel_c(ptel) (((ptel) & PTEL_C) >> 3)
#define PTEL_D        (1 << 2)
#define cpu_ptel_d(ptel) (((ptel) & PTEL_D) >> 2)
#define PTEL_SH       (1 << 1)
#define cpu_ptel_sh(ptel)(((ptel) & PTEL_SH) >> 1)
#define PTEL_WT       (1 << 0)
#define cpu_ptel_wt(ptel) ((ptel) & PTEL_WT)

#define PTEL_SZ_HIGH_OFFSET  (7)
#define PTEL_SZ_HIGH  (1 << PTEL_SZ_HIGH_OFFSET)
#define PTEL_SZ_LOW_OFFSET   (4)
#define PTEL_SZ_LOW   (1 << PTEL_SZ_LOW_OFFSET)
static inline int cpu_ptel_sz (uint32_t ptel)
{
    int sz;
    sz = (ptel & PTEL_SZ_HIGH) >> PTEL_SZ_HIGH_OFFSET;
    sz <<= 1;
    sz |= (ptel & PTEL_SZ_LOW) >> PTEL_SZ_LOW_OFFSET;
    return sz;
}

#define PTEL_PPN_BITS (19)
#define PTEL_PPN_OFFSET (10)
#define PTEL_PPN_SIZE (1 << PTEL_PPN_BITS)
#define PTEL_PPN_MASK (((PTEL_PPN_SIZE) - 1) << PTEL_PPN_OFFSET)
static inline int cpu_ptel_ppn (uint32_t ptel)
{
    return ((ptel & PTEL_PPN_MASK) >> PTEL_PPN_OFFSET);
}

#define PTEL_PR_BITS   (2)
#define PTEL_PR_OFFSET (5)
#define PTEL_PR_SIZE (1 << PTEL_PR_BITS)
#define PTEL_PR_MASK (((PTEL_PR_SIZE) - 1) << PTEL_PR_OFFSET)
static inline int cpu_ptel_pr (uint32_t ptel)
{
    return ((ptel & PTEL_PR_MASK) >> PTEL_PR_OFFSET);
}

/* PTEA : Page Translation Entry Assistance register */
#define PTEA_SA_BITS (3)
#define PTEA_SA_SIZE (1 << PTEA_SA_BITS)
#define PTEA_SA_MASK (PTEA_SA_SIZE - 1)
#define cpu_ptea_sa(ptea) ((ptea) & PTEA_SA_MASK)
#define PTEA_TC        (1 << 3)
#define cpu_ptea_tc(ptea) (((ptea) & PTEA_TC) >> 3)

static inline target_ulong cpu_read_sr(CPUSH4State *env)
{
    return env->sr | (env->sr_m << SR_M) |
                     (env->sr_q << SR_Q) |
                     (env->sr_t << SR_T);
}

static inline void cpu_write_sr(CPUSH4State *env, target_ulong sr)
{
    env->sr_m = (sr >> SR_M) & 1;
    env->sr_q = (sr >> SR_Q) & 1;
    env->sr_t = (sr >> SR_T) & 1;
    env->sr = sr & ~((1u << SR_M) | (1u << SR_Q) | (1u << SR_T));
}

static inline void cpu_get_tb_cpu_state(CPUSH4State *env, target_ulong *pc,
                                        target_ulong *cs_base, uint32_t *flags)
{
    *pc = env->pc;
    /* For a gUSA region, notice the end of the region.  */
    *cs_base = env->flags & TB_FLAG_GUSA_MASK ? env->gregs[0] : 0;
    *flags = env->flags
            | (env->fpscr & TB_FLAG_FPSCR_MASK)
            | (env->sr & TB_FLAG_SR_MASK)
            | (env->movcal_backup ? TB_FLAG_PENDING_MOVCA : 0); /* Bit 3 */
#ifdef CONFIG_USER_ONLY
    *flags |= TB_FLAG_UNALIGN * !env_cpu(env)->prctl_unalign_sigbus;
#endif
}

#endif /* SH4_CPU_H */
Commit	Line	Data
fdf9b3e8 FB	1	/*
fdf9b3e8 FB	2	* SH4 emulation
5fafdf24	3	*
fdf9b3e8 FB	4	* Copyright (c) 2005 Samuel Tardieu
	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
6faf2b6c	9	* version 2.1 of the License, or (at your option) any later version.
fdf9b3e8 FB	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
8167ee88	17	* License along with this library; if not, see <http://www.gnu.org/licenses/>.
fdf9b3e8	18	*/
07f5a258 MA	19
	20	#ifndef SH4_CPU_H
	21	#define SH4_CPU_H
fdf9b3e8	22
e6005f66	23	#include "cpu-qom.h"
74433bf0	24	#include "exec/cpu-defs.h"
69242e7e	25	#include "qemu/cpu-float.h"
fdf9b3e8	26
0fd3ca30 AJ	27	/* CPU Subtypes */
	28	#define SH_CPU_SH7750 (1 << 0)
	29	#define SH_CPU_SH7750S (1 << 1)
	30	#define SH_CPU_SH7750R (1 << 2)
	31	#define SH_CPU_SH7751 (1 << 3)
	32	#define SH_CPU_SH7751R (1 << 4)
a9c43f8e	33	#define SH_CPU_SH7785 (1 << 5)
0fd3ca30 AJ	34	#define SH_CPU_SH7750_ALL (SH_CPU_SH7750 \| SH_CPU_SH7750S \| SH_CPU_SH7750R)
	35	#define SH_CPU_SH7751_ALL (SH_CPU_SH7751 \| SH_CPU_SH7751R)
	36
5ed9a259 AJ	37	#define SR_MD 30
	38	#define SR_RB 29
	39	#define SR_BL 28
	40	#define SR_FD 15
	41	#define SR_M 9
	42	#define SR_Q 8
	43	#define SR_I3 7
	44	#define SR_I2 6
	45	#define SR_I1 5
	46	#define SR_I0 4
	47	#define SR_S 1
	48	#define SR_T 0
fdf9b3e8	49
26ac1ea5 AJ	50	#define FPSCR_MASK (0x003fffff)
	51	#define FPSCR_FR (1 << 21)
	52	#define FPSCR_SZ (1 << 20)
	53	#define FPSCR_PR (1 << 19)
	54	#define FPSCR_DN (1 << 18)
	55	#define FPSCR_CAUSE_MASK (0x3f << 12)
	56	#define FPSCR_CAUSE_SHIFT (12)
	57	#define FPSCR_CAUSE_E (1 << 17)
	58	#define FPSCR_CAUSE_V (1 << 16)
	59	#define FPSCR_CAUSE_Z (1 << 15)
	60	#define FPSCR_CAUSE_O (1 << 14)
	61	#define FPSCR_CAUSE_U (1 << 13)
	62	#define FPSCR_CAUSE_I (1 << 12)
	63	#define FPSCR_ENABLE_MASK (0x1f << 7)
	64	#define FPSCR_ENABLE_SHIFT (7)
	65	#define FPSCR_ENABLE_V (1 << 11)
	66	#define FPSCR_ENABLE_Z (1 << 10)
	67	#define FPSCR_ENABLE_O (1 << 9)
	68	#define FPSCR_ENABLE_U (1 << 8)
	69	#define FPSCR_ENABLE_I (1 << 7)
	70	#define FPSCR_FLAG_MASK (0x1f << 2)
	71	#define FPSCR_FLAG_SHIFT (2)
	72	#define FPSCR_FLAG_V (1 << 6)
	73	#define FPSCR_FLAG_Z (1 << 5)
	74	#define FPSCR_FLAG_O (1 << 4)
	75	#define FPSCR_FLAG_U (1 << 3)
	76	#define FPSCR_FLAG_I (1 << 2)
	77	#define FPSCR_RM_MASK (0x03 << 0)
	78	#define FPSCR_RM_NEAREST (0 << 0)
	79	#define FPSCR_RM_ZERO (1 << 0)
	80
ab419fd8 RH	81	#define TB_FLAG_DELAY_SLOT (1 << 0)
	82	#define TB_FLAG_DELAY_SLOT_COND (1 << 1)
	83	#define TB_FLAG_DELAY_SLOT_RTE (1 << 2)
	84	#define TB_FLAG_PENDING_MOVCA (1 << 3)
	85	#define TB_FLAG_GUSA_SHIFT 4 /* [11:4] */
	86	#define TB_FLAG_GUSA_EXCLUSIVE (1 << 12)
	87	#define TB_FLAG_UNALIGN (1 << 13)
	88	#define TB_FLAG_SR_FD (1 << SR_FD) /* 15 */
	89	#define TB_FLAG_FPSCR_PR FPSCR_PR /* 19 */
	90	#define TB_FLAG_FPSCR_SZ FPSCR_SZ /* 20 */
	91	#define TB_FLAG_FPSCR_FR FPSCR_FR /* 21 */
	92	#define TB_FLAG_SR_RB (1 << SR_RB) /* 29 */
	93	#define TB_FLAG_SR_MD (1 << SR_MD) /* 30 */
	94
	95	#define TB_FLAG_DELAY_SLOT_MASK (TB_FLAG_DELAY_SLOT \| \
	96	TB_FLAG_DELAY_SLOT_COND \| \
	97	TB_FLAG_DELAY_SLOT_RTE)
	98	#define TB_FLAG_GUSA_MASK ((0xff << TB_FLAG_GUSA_SHIFT) \| \
	99	TB_FLAG_GUSA_EXCLUSIVE)
	100	#define TB_FLAG_FPSCR_MASK (TB_FLAG_FPSCR_PR \| \
	101	TB_FLAG_FPSCR_SZ \| \
	102	TB_FLAG_FPSCR_FR)
	103	#define TB_FLAG_SR_MASK (TB_FLAG_SR_FD \| \
	104	TB_FLAG_SR_RB \| \
	105	TB_FLAG_SR_MD)
	106	#define TB_FLAG_ENVFLAGS_MASK (TB_FLAG_DELAY_SLOT_MASK \| \
	107	TB_FLAG_GUSA_MASK)
e1933d14	108
fdf9b3e8	109	typedef struct tlb_t {
fdf9b3e8	110	uint32_t vpn; /* virtual page number */
fdf9b3e8	111	uint32_t ppn; /* physical page number */
af090497 AJ	112	uint32_t size; /* mapped page size in bytes */
	113	uint8_t asid; /* address space identifier */
	114	uint8_t v:1; /* validity */
	115	uint8_t sz:2; /* page size */
	116	uint8_t sh:1; /* share status */
	117	uint8_t c:1; /* cacheability */
	118	uint8_t pr:2; /* protection key */
	119	uint8_t d:1; /* dirty */
	120	uint8_t wt:1; /* write through */
	121	uint8_t sa:3; /* space attribute (PCMCIA) */
	122	uint8_t tc:1; /* timing control */
fdf9b3e8 FB	123	} tlb_t;
	124
	125	#define UTLB_SIZE 64
	126	#define ITLB_SIZE 4
	127
07f3c16c	128	#define TARGET_INSN_START_EXTRA_WORDS 1
6ebbf390	129
71968fa6 AJ	130	enum sh_features {
71968fa6 AJ	131	SH_FEATURE_SH4A = 1,
c2432a42	132	SH_FEATURE_BCR3_AND_BCR4 = 2,
71968fa6 AJ	133	};
71968fa6 AJ	134
852d481f EI	135	typedef struct memory_content {
	136	uint32_t address;
	137	uint32_t value;
	138	struct memory_content *next;
	139	} memory_content;
	140
1ea4a06a	141	typedef struct CPUArchState {
fdf9b3e8 FB	142	uint32_t flags; /* general execution flags */
fdf9b3e8 FB	143	uint32_t gregs[24]; /* general registers */
e04ea3dc	144	float32 fregs[32]; /* floating point registers */
34086945	145	uint32_t sr; /* status register (with T split out) */
1d565b21 AJ	146	uint32_t sr_m; /* M bit of status register */
1d565b21 AJ	147	uint32_t sr_q; /* Q bit of status register */
34086945	148	uint32_t sr_t; /* T bit of status register */
fdf9b3e8 FB	149	uint32_t ssr; /* saved status register */
	150	uint32_t spc; /* saved program counter */
	151	uint32_t gbr; /* global base register */
	152	uint32_t vbr; /* vector base register */
	153	uint32_t sgr; /* saved global register 15 */
	154	uint32_t dbr; /* debug base register */
	155	uint32_t pc; /* program counter */
47b9f4d5 AJ	156	uint32_t delayed_pc; /* target of delayed branch */
47b9f4d5 AJ	157	uint32_t delayed_cond; /* condition of delayed branch */
fdf9b3e8 FB	158	uint32_t mach; /* multiply and accumulate high */
	159	uint32_t macl; /* multiply and accumulate low */
	160	uint32_t pr; /* procedure register */
	161	uint32_t fpscr; /* floating point status/control register */
	162	uint32_t fpul; /* floating point communication register */
	163
17b086f7	164	/* float point status register */
ea6cf6be	165	float_status fp_status;
eda9b09b	166
fdf9b3e8 FB	167	/* Those belong to the specific unit (SH7750) but are handled here */
	168	uint32_t mmucr; /* MMU control register */
	169	uint32_t pteh; /* page table entry high register */
	170	uint32_t ptel; /* page table entry low register */
	171	uint32_t ptea; /* page table entry assistance register */
23b5d9fa	172	uint32_t ttb; /* translation table base register */
fdf9b3e8 FB	173	uint32_t tea; /* TLB exception address register */
	174	uint32_t tra; /* TRAPA exception register */
	175	uint32_t expevt; /* exception event register */
	176	uint32_t intevt; /* interrupt event register */
	177
4f6493ff AJ	178	tlb_t itlb[ITLB_SIZE]; /* instruction translation table */
	179	tlb_t utlb[UTLB_SIZE]; /* unified translation table */
	180
f85da308 RH	181	/* LDST = LOCK_ADDR != -1. */
	182	uint32_t lock_addr;
	183	uint32_t lock_value;
4f6493ff	184
1f5c00cf AB	185	/* Fields up to this point are cleared by a CPU reset */
	186	struct {} end_reset_fields;
	187
f0c3c505	188	/* Fields from here on are preserved over CPU reset. */
4f6493ff	189	int id; /* CPU model */
0fd3ca30	190
21c04611 BB	191	/* The features that we should emulate. See sh_features above. */
	192	uint32_t features;
	193
e96e2044	194	void *intc_handle;
efac4154	195	int in_sleep; /* SR_BL ignored during sleep */
852d481f EI	196	memory_content *movcal_backup;
852d481f EI	197	memory_content **movcal_backup_tail;
fdf9b3e8 FB	198	} CPUSH4State;
fdf9b3e8 FB	199
e6005f66 PB	200	/**
	201	* SuperHCPU:
	202	* @env: #CPUSH4State
	203	*
	204	* A SuperH CPU.
	205	*/
b36e239e	206	struct ArchCPU {
e6005f66 PB	207	/< private >/
	208	CPUState parent_obj;
	209	/< public >/
	210
5b146dc7	211	CPUNegativeOffsetState neg;
e6005f66 PB	212	CPUSH4State env;
	213	};
	214
e6005f66	215
90c84c56	216	void superh_cpu_dump_state(CPUState cpu, FILE f, int flags);
e6005f66	217	hwaddr superh_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
a010bdbe	218	int superh_cpu_gdb_read_register(CPUState cpu, GByteArray buf, int reg);
e6005f66	219	int superh_cpu_gdb_write_register(CPUState cpu, uint8_t buf, int reg);
8905770b MAL	220	G_NORETURN void superh_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
	221	MMUAccessType access_type, int mmu_idx,
	222	uintptr_t retaddr);
339894be	223
aa7408ec	224	void sh4_translate_init(void);
cac720ec RH	225	void sh4_cpu_list(void);
	226
	227	#if !defined(CONFIG_USER_ONLY)
f98bce2b RH	228	bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
	229	MMUAccessType access_type, int mmu_idx,
	230	bool probe, uintptr_t retaddr);
73166ca3 PMD	231	void superh_cpu_do_interrupt(CPUState *cpu);
73166ca3 PMD	232	bool superh_cpu_exec_interrupt(CPUState *cpu, int int_req);
e0bcb9ca	233	void cpu_sh4_invalidate_tlb(CPUSH4State *s);
bc656a29	234	uint32_t cpu_sh4_read_mmaped_itlb_addr(CPUSH4State *s,
a8170e5e AK	235	hwaddr addr);
a8170e5e AK	236	void cpu_sh4_write_mmaped_itlb_addr(CPUSH4State *s, hwaddr addr,
9f97309a	237	uint32_t mem_value);
bc656a29	238	uint32_t cpu_sh4_read_mmaped_itlb_data(CPUSH4State *s,
a8170e5e AK	239	hwaddr addr);
a8170e5e AK	240	void cpu_sh4_write_mmaped_itlb_data(CPUSH4State *s, hwaddr addr,
9f97309a	241	uint32_t mem_value);
bc656a29	242	uint32_t cpu_sh4_read_mmaped_utlb_addr(CPUSH4State *s,
a8170e5e AK	243	hwaddr addr);
a8170e5e AK	244	void cpu_sh4_write_mmaped_utlb_addr(CPUSH4State *s, hwaddr addr,
9f97309a	245	uint32_t mem_value);
bc656a29	246	uint32_t cpu_sh4_read_mmaped_utlb_data(CPUSH4State *s,
a8170e5e AK	247	hwaddr addr);
a8170e5e AK	248	void cpu_sh4_write_mmaped_utlb_data(CPUSH4State *s, hwaddr addr,
9f97309a	249	uint32_t mem_value);
3c7b48b7	250	#endif
fdf9b3e8	251
852d481f EI	252	int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr);
852d481f EI	253
ef7ec1c1 AJ	254	void cpu_load_tlb(CPUSH4State * env);
ef7ec1c1 AJ	255
974e58d2 IM	256	#define SUPERH_CPU_TYPE_SUFFIX "-" TYPE_SUPERH_CPU
974e58d2 IM	257	#define SUPERH_CPU_TYPE_NAME(model) model SUPERH_CPU_TYPE_SUFFIX
0dacec87	258	#define CPU_RESOLVING_TYPE TYPE_SUPERH_CPU
974e58d2	259
0fd3ca30	260	#define cpu_list sh4_cpu_list
9467d44c	261
6ebbf390	262	/* MMU modes definitions */
6ebbf390	263	#define MMU_USER_IDX 1
97ed5ccd	264	static inline int cpu_mmu_index (CPUSH4State *env, bool ifetch)
6ebbf390	265	{
be53081a AJ	266	/* The instruction in a RTE delay slot is fetched in privileged
be53081a AJ	267	mode, but executed in user mode. */
ab419fd8	268	if (ifetch && (env->flags & TB_FLAG_DELAY_SLOT_RTE)) {
be53081a AJ	269	return 0;
	270	} else {
	271	return (env->sr & (1u << SR_MD)) == 0 ? 1 : 0;
	272	}
6ebbf390 JM	273	}
6ebbf390 JM	274
022c62cb	275	#include "exec/cpu-all.h"
fdf9b3e8	276
fdf9b3e8 FB	277	/* MMU control register */
	278	#define MMUCR 0x1F000010
	279	#define MMUCR_AT (1<<0)
e0bcb9ca	280	#define MMUCR_TI (1<<2)
fdf9b3e8	281	#define MMUCR_SV (1<<8)
ea2b542a AJ	282	#define MMUCR_URC_BITS (6)
	283	#define MMUCR_URC_OFFSET (10)
	284	#define MMUCR_URC_SIZE (1 << MMUCR_URC_BITS)
	285	#define MMUCR_URC_MASK (((MMUCR_URC_SIZE) - 1) << MMUCR_URC_OFFSET)
	286	static inline int cpu_mmucr_urc (uint32_t mmucr)
	287	{
	288	return ((mmucr & MMUCR_URC_MASK) >> MMUCR_URC_OFFSET);
	289	}
	290
	291	/* PTEH : Page Translation Entry High register */
	292	#define PTEH_ASID_BITS (8)
	293	#define PTEH_ASID_SIZE (1 << PTEH_ASID_BITS)
	294	#define PTEH_ASID_MASK (PTEH_ASID_SIZE - 1)
	295	#define cpu_pteh_asid(pteh) ((pteh) & PTEH_ASID_MASK)
	296	#define PTEH_VPN_BITS (22)
	297	#define PTEH_VPN_OFFSET (10)
	298	#define PTEH_VPN_SIZE (1 << PTEH_VPN_BITS)
	299	#define PTEH_VPN_MASK (((PTEH_VPN_SIZE) - 1) << PTEH_VPN_OFFSET)
	300	static inline int cpu_pteh_vpn (uint32_t pteh)
	301	{
	302	return ((pteh & PTEH_VPN_MASK) >> PTEH_VPN_OFFSET);
	303	}
	304
	305	/* PTEL : Page Translation Entry Low register */
	306	#define PTEL_V (1 << 8)
	307	#define cpu_ptel_v(ptel) (((ptel) & PTEL_V) >> 8)
	308	#define PTEL_C (1 << 3)
	309	#define cpu_ptel_c(ptel) (((ptel) & PTEL_C) >> 3)
	310	#define PTEL_D (1 << 2)
	311	#define cpu_ptel_d(ptel) (((ptel) & PTEL_D) >> 2)
	312	#define PTEL_SH (1 << 1)
	313	#define cpu_ptel_sh(ptel)(((ptel) & PTEL_SH) >> 1)
	314	#define PTEL_WT (1 << 0)
	315	#define cpu_ptel_wt(ptel) ((ptel) & PTEL_WT)
	316
	317	#define PTEL_SZ_HIGH_OFFSET (7)
	318	#define PTEL_SZ_HIGH (1 << PTEL_SZ_HIGH_OFFSET)
	319	#define PTEL_SZ_LOW_OFFSET (4)
	320	#define PTEL_SZ_LOW (1 << PTEL_SZ_LOW_OFFSET)
	321	static inline int cpu_ptel_sz (uint32_t ptel)
	322	{
	323	int sz;
	324	sz = (ptel & PTEL_SZ_HIGH) >> PTEL_SZ_HIGH_OFFSET;
	325	sz <<= 1;
	326	sz \|= (ptel & PTEL_SZ_LOW) >> PTEL_SZ_LOW_OFFSET;
	327	return sz;
	328	}
	329
	330	#define PTEL_PPN_BITS (19)
	331	#define PTEL_PPN_OFFSET (10)
	332	#define PTEL_PPN_SIZE (1 << PTEL_PPN_BITS)
	333	#define PTEL_PPN_MASK (((PTEL_PPN_SIZE) - 1) << PTEL_PPN_OFFSET)
	334	static inline int cpu_ptel_ppn (uint32_t ptel)
	335	{
	336	return ((ptel & PTEL_PPN_MASK) >> PTEL_PPN_OFFSET);
	337	}
	338
	339	#define PTEL_PR_BITS (2)
	340	#define PTEL_PR_OFFSET (5)
	341	#define PTEL_PR_SIZE (1 << PTEL_PR_BITS)
	342	#define PTEL_PR_MASK (((PTEL_PR_SIZE) - 1) << PTEL_PR_OFFSET)
	343	static inline int cpu_ptel_pr (uint32_t ptel)
	344	{
	345	return ((ptel & PTEL_PR_MASK) >> PTEL_PR_OFFSET);
346	}
347
348	/* PTEA : Page Translation Entry Assistance register */
349	#define PTEA_SA_BITS (3)
350	#define PTEA_SA_SIZE (1 << PTEA_SA_BITS)
351	#define PTEA_SA_MASK (PTEA_SA_SIZE - 1)
352	#define cpu_ptea_sa(ptea) ((ptea) & PTEA_SA_MASK)
353	#define PTEA_TC (1 << 3)
354	#define cpu_ptea_tc(ptea) (((ptea) & PTEA_TC) >> 3)
fdf9b3e8	355
34086945 AJ	356	static inline target_ulong cpu_read_sr(CPUSH4State *env)
34086945 AJ	357	{
1d565b21 AJ	358	return env->sr \| (env->sr_m << SR_M) \|
	359	(env->sr_q << SR_Q) \|
	360	(env->sr_t << SR_T);
34086945 AJ	361	}
	362
	363	static inline void cpu_write_sr(CPUSH4State *env, target_ulong sr)
	364	{
1d565b21 AJ	365	env->sr_m = (sr >> SR_M) & 1;
	366	env->sr_q = (sr >> SR_Q) & 1;
	367	env->sr_t = (sr >> SR_T) & 1;
	368	env->sr = sr & ~((1u << SR_M) \| (1u << SR_Q) \| (1u << SR_T));
34086945 AJ	369	}
34086945 AJ	370
73e5716c	371	static inline void cpu_get_tb_cpu_state(CPUSH4State env, target_ulong pc,
89fee74a	372	target_ulong cs_base, uint32_t flags)
6b917547 AL	373	{
6b917547 AL	374	*pc = env->pc;
4bfa602b	375	/* For a gUSA region, notice the end of the region. */
ab419fd8 RH	376	*cs_base = env->flags & TB_FLAG_GUSA_MASK ? env->gregs[0] : 0;
	377	*flags = env->flags
	378	\| (env->fpscr & TB_FLAG_FPSCR_MASK)
	379	\| (env->sr & TB_FLAG_SR_MASK)
1516184d	380	\| (env->movcal_backup ? TB_FLAG_PENDING_MOVCA : 0); /* Bit 3 */
4da06fb3 RH	381	#ifdef CONFIG_USER_ONLY
	382	flags \|= TB_FLAG_UNALIGN !env_cpu(env)->prctl_unalign_sigbus;
	383	#endif
6b917547 AL	384	}
6b917547 AL	385
07f5a258	386	#endif /* SH4_CPU_H */