[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 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 _CPU_SH4_H
#define _CPU_SH4_H

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

#define TARGET_LONG_BITS 32
#define TARGET_HAS_ICE 1

#define ELF_MACHINE	EM_SH

/* 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 CPUArchState struct CPUSH4State

#include "exec/cpu-defs.h"

#include "fpu/softfloat.h"

#define TARGET_PAGE_BITS 12	/* 4k XXXXX */

#define TARGET_PHYS_ADDR_SPACE_BITS 32
#define TARGET_VIRT_ADDR_SPACE_BITS 32

#define SR_MD (1 << 30)
#define SR_RB (1 << 29)
#define SR_BL (1 << 28)
#define SR_FD (1 << 15)
#define SR_M  (1 << 9)
#define SR_Q  (1 << 8)
#define SR_I3 (1 << 7)
#define SR_I2 (1 << 6)
#define SR_I1 (1 << 5)
#define SR_I0 (1 << 4)
#define SR_S  (1 << 1)
#define SR_T  (1 << 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 DELAY_SLOT             (1 << 0)
#define DELAY_SLOT_CONDITIONAL (1 << 1)
#define DELAY_SLOT_TRUE        (1 << 2)
#define DELAY_SLOT_CLEARME     (1 << 3)
/* The dynamic value of the DELAY_SLOT_TRUE flag determines whether the jump
 * after the delay slot should be taken or not. It is calculated from SR_T.
 *
 * It is unclear if it is permitted to modify the SR_T flag in a delay slot.
 * The use of DELAY_SLOT_TRUE flag makes us accept such SR_T modification.
 */

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 NB_MMU_MODES 2

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 CPUSH4State {
    uint32_t flags;		/* general execution flags */
    uint32_t gregs[24];		/* general registers */
    float32 fregs[32];		/* floating point registers */
    uint32_t sr;		/* 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 jump */
    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;

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

    /* 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;		/* tranlation 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 */

    uint32_t ldst;

    CPU_COMMON

    int id;			/* CPU model */
    uint32_t pvr;		/* Processor Version Register */
    uint32_t prr;		/* Processor Revision Register */
    uint32_t cvr;		/* Cache Version Register */

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

#include "cpu-qom.h"

SuperHCPU *cpu_sh4_init(const char *cpu_model);
int cpu_sh4_exec(CPUSH4State * s);
int cpu_sh4_signal_handler(int host_signum, void *pinfo,
                           void *puc);
int cpu_sh4_handle_mmu_fault(CPUSH4State * env, target_ulong address, int rw,
                             int mmu_idx);
#define cpu_handle_mmu_fault cpu_sh4_handle_mmu_fault
void do_interrupt(CPUSH4State * env);

void sh4_cpu_list(FILE *f, fprintf_function cpu_fprintf);
#if !defined(CONFIG_USER_ONLY)
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);

static inline void cpu_set_tls(CPUSH4State *env, target_ulong newtls)
{
  env->gbr = newtls;
}

void cpu_load_tlb(CPUSH4State * env);

static inline CPUSH4State *cpu_init(const char *cpu_model)
{
    SuperHCPU *cpu = cpu_sh4_init(cpu_model);
    if (cpu == NULL) {
        return NULL;
    }
    return &cpu->env;
}

#define cpu_exec cpu_sh4_exec
#define cpu_gen_code cpu_sh4_gen_code
#define cpu_signal_handler cpu_sh4_signal_handler
#define cpu_list sh4_cpu_list

/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _kernel
#define MMU_MODE1_SUFFIX _user
#define MMU_USER_IDX 1
static inline int cpu_mmu_index (CPUSH4State *env)
{
    return (env->sr & SR_MD) == 0 ? 1 : 0;
}

#if defined(CONFIG_USER_ONLY)
static inline void cpu_clone_regs(CPUSH4State *env, target_ulong newsp)
{
    if (newsp)
        env->gregs[15] = newsp;
    env->gregs[0] = 0;
}
#endif

#include "exec/cpu-all.h"

/* Memory access type */
enum {
    /* Privilege */
    ACCESS_PRIV = 0x01,
    /* Direction */
    ACCESS_WRITE = 0x02,
    /* Type of instruction */
    ACCESS_CODE = 0x10,
    ACCESS_INT = 0x20
};

/* 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)

#define TB_FLAG_PENDING_MOVCA  (1 << 4)

static inline void cpu_get_tb_cpu_state(CPUSH4State *env, target_ulong *pc,
                                        target_ulong *cs_base, int *flags)
{
    *pc = env->pc;
    *cs_base = 0;
    *flags = (env->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL
                    | DELAY_SLOT_TRUE | DELAY_SLOT_CLEARME))   /* Bits  0- 3 */
            | (env->fpscr & (FPSCR_FR | FPSCR_SZ | FPSCR_PR))  /* Bits 19-21 */
            | (env->sr & (SR_MD | SR_RB))                      /* Bits 29-30 */
            | (env->sr & SR_FD)                                /* Bit 15 */
            | (env->movcal_backup ? TB_FLAG_PENDING_MOVCA : 0); /* Bit 4 */
}

static inline bool cpu_has_work(CPUState *cpu)
{
    CPUSH4State *env = &SUPERH_CPU(cpu)->env;

    return env->interrupt_request & CPU_INTERRUPT_HARD;
}

#include "exec/exec-all.h"

static inline void cpu_pc_from_tb(CPUSH4State *env, TranslationBlock *tb)
{
    env->pc = tb->pc;
    env->flags = tb->flags;
}

#endif				/* _CPU_SH4_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
	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 Lesser General Public
8167ee88	17	* License along with this library; if not, see <http://www.gnu.org/licenses/>.
fdf9b3e8 FB	18	*/
	19	#ifndef _CPU_SH4_H
	20	#define _CPU_SH4_H
	21
	22	#include "config.h"
9a78eead	23	#include "qemu-common.h"
fdf9b3e8 FB	24
	25	#define TARGET_LONG_BITS 32
	26	#define TARGET_HAS_ICE 1
	27
9042c0e2 TS	28	#define ELF_MACHINE EM_SH
9042c0e2 TS	29
0fd3ca30 AJ	30	/* CPU Subtypes */
	31	#define SH_CPU_SH7750 (1 << 0)
	32	#define SH_CPU_SH7750S (1 << 1)
	33	#define SH_CPU_SH7750R (1 << 2)
	34	#define SH_CPU_SH7751 (1 << 3)
	35	#define SH_CPU_SH7751R (1 << 4)
a9c43f8e	36	#define SH_CPU_SH7785 (1 << 5)
0fd3ca30 AJ	37	#define SH_CPU_SH7750_ALL (SH_CPU_SH7750 \| SH_CPU_SH7750S \| SH_CPU_SH7750R)
	38	#define SH_CPU_SH7751_ALL (SH_CPU_SH7751 \| SH_CPU_SH7751R)
	39
9349b4f9	40	#define CPUArchState struct CPUSH4State
c2764719	41
022c62cb	42	#include "exec/cpu-defs.h"
fdf9b3e8	43
6b4c305c	44	#include "fpu/softfloat.h"
eda9b09b	45
fdf9b3e8 FB	46	#define TARGET_PAGE_BITS 12 /* 4k XXXXX */
fdf9b3e8 FB	47
52705890 RH	48	#define TARGET_PHYS_ADDR_SPACE_BITS 32
	49	#define TARGET_VIRT_ADDR_SPACE_BITS 32
	50
fdf9b3e8 FB	51	#define SR_MD (1 << 30)
	52	#define SR_RB (1 << 29)
	53	#define SR_BL (1 << 28)
	54	#define SR_FD (1 << 15)
	55	#define SR_M (1 << 9)
	56	#define SR_Q (1 << 8)
56cd2b96 AJ	57	#define SR_I3 (1 << 7)
	58	#define SR_I2 (1 << 6)
	59	#define SR_I1 (1 << 5)
	60	#define SR_I0 (1 << 4)
fdf9b3e8 FB	61	#define SR_S (1 << 1)
	62	#define SR_T (1 << 0)
	63
26ac1ea5 AJ	64	#define FPSCR_MASK (0x003fffff)
	65	#define FPSCR_FR (1 << 21)
	66	#define FPSCR_SZ (1 << 20)
	67	#define FPSCR_PR (1 << 19)
	68	#define FPSCR_DN (1 << 18)
	69	#define FPSCR_CAUSE_MASK (0x3f << 12)
	70	#define FPSCR_CAUSE_SHIFT (12)
	71	#define FPSCR_CAUSE_E (1 << 17)
	72	#define FPSCR_CAUSE_V (1 << 16)
	73	#define FPSCR_CAUSE_Z (1 << 15)
	74	#define FPSCR_CAUSE_O (1 << 14)
	75	#define FPSCR_CAUSE_U (1 << 13)
	76	#define FPSCR_CAUSE_I (1 << 12)
	77	#define FPSCR_ENABLE_MASK (0x1f << 7)
	78	#define FPSCR_ENABLE_SHIFT (7)
	79	#define FPSCR_ENABLE_V (1 << 11)
	80	#define FPSCR_ENABLE_Z (1 << 10)
	81	#define FPSCR_ENABLE_O (1 << 9)
	82	#define FPSCR_ENABLE_U (1 << 8)
	83	#define FPSCR_ENABLE_I (1 << 7)
	84	#define FPSCR_FLAG_MASK (0x1f << 2)
	85	#define FPSCR_FLAG_SHIFT (2)
	86	#define FPSCR_FLAG_V (1 << 6)
	87	#define FPSCR_FLAG_Z (1 << 5)
	88	#define FPSCR_FLAG_O (1 << 4)
	89	#define FPSCR_FLAG_U (1 << 3)
	90	#define FPSCR_FLAG_I (1 << 2)
	91	#define FPSCR_RM_MASK (0x03 << 0)
	92	#define FPSCR_RM_NEAREST (0 << 0)
	93	#define FPSCR_RM_ZERO (1 << 0)
	94
823029f9	95	#define DELAY_SLOT (1 << 0)
fdf9b3e8	96	#define DELAY_SLOT_CONDITIONAL (1 << 1)
823029f9 TS	97	#define DELAY_SLOT_TRUE (1 << 2)
	98	#define DELAY_SLOT_CLEARME (1 << 3)
	99	/* The dynamic value of the DELAY_SLOT_TRUE flag determines whether the jump
	100	* after the delay slot should be taken or not. It is calculated from SR_T.
	101	*
	102	* It is unclear if it is permitted to modify the SR_T flag in a delay slot.
	103	* The use of DELAY_SLOT_TRUE flag makes us accept such SR_T modification.
	104	*/
fdf9b3e8	105
fdf9b3e8	106	typedef struct tlb_t {
fdf9b3e8	107	uint32_t vpn; /* virtual page number */
fdf9b3e8	108	uint32_t ppn; /* physical page number */
af090497 AJ	109	uint32_t size; /* mapped page size in bytes */
	110	uint8_t asid; /* address space identifier */
	111	uint8_t v:1; /* validity */
	112	uint8_t sz:2; /* page size */
	113	uint8_t sh:1; /* share status */
	114	uint8_t c:1; /* cacheability */
	115	uint8_t pr:2; /* protection key */
	116	uint8_t d:1; /* dirty */
	117	uint8_t wt:1; /* write through */
	118	uint8_t sa:3; /* space attribute (PCMCIA) */
	119	uint8_t tc:1; /* timing control */
fdf9b3e8 FB	120	} tlb_t;
	121
	122	#define UTLB_SIZE 64
	123	#define ITLB_SIZE 4
	124
6ebbf390 JM	125	#define NB_MMU_MODES 2
6ebbf390 JM	126
71968fa6 AJ	127	enum sh_features {
71968fa6 AJ	128	SH_FEATURE_SH4A = 1,
c2432a42	129	SH_FEATURE_BCR3_AND_BCR4 = 2,
71968fa6 AJ	130	};
71968fa6 AJ	131
852d481f EI	132	typedef struct memory_content {
	133	uint32_t address;
	134	uint32_t value;
	135	struct memory_content *next;
	136	} memory_content;
	137
fdf9b3e8 FB	138	typedef struct CPUSH4State {
	139	uint32_t flags; /* general execution flags */
	140	uint32_t gregs[24]; /* general registers */
e04ea3dc	141	float32 fregs[32]; /* floating point registers */
fdf9b3e8 FB	142	uint32_t sr; /* status register */
	143	uint32_t ssr; /* saved status register */
	144	uint32_t spc; /* saved program counter */
	145	uint32_t gbr; /* global base register */
	146	uint32_t vbr; /* vector base register */
	147	uint32_t sgr; /* saved global register 15 */
	148	uint32_t dbr; /* debug base register */
	149	uint32_t pc; /* program counter */
	150	uint32_t delayed_pc; /* target of delayed jump */
	151	uint32_t mach; /* multiply and accumulate high */
	152	uint32_t macl; /* multiply and accumulate low */
	153	uint32_t pr; /* procedure register */
	154	uint32_t fpscr; /* floating point status/control register */
	155	uint32_t fpul; /* floating point communication register */
	156
17b086f7	157	/* float point status register */
ea6cf6be	158	float_status fp_status;
eda9b09b	159
71968fa6 AJ	160	/* The features that we should emulate. See sh_features above. */
	161	uint32_t features;
	162
fdf9b3e8 FB	163	/* Those belong to the specific unit (SH7750) but are handled here */
	164	uint32_t mmucr; /* MMU control register */
	165	uint32_t pteh; /* page table entry high register */
	166	uint32_t ptel; /* page table entry low register */
	167	uint32_t ptea; /* page table entry assistance register */
	168	uint32_t ttb; /* tranlation table base register */
	169	uint32_t tea; /* TLB exception address register */
	170	uint32_t tra; /* TRAPA exception register */
	171	uint32_t expevt; /* exception event register */
	172	uint32_t intevt; /* interrupt event register */
	173
4f6493ff AJ	174	tlb_t itlb[ITLB_SIZE]; /* instruction translation table */
	175	tlb_t utlb[UTLB_SIZE]; /* unified translation table */
	176
	177	uint32_t ldst;
	178
	179	CPU_COMMON
	180
	181	int id; /* CPU model */
0fd3ca30 AJ	182	uint32_t pvr; /* Processor Version Register */
	183	uint32_t prr; /* Processor Revision Register */
	184	uint32_t cvr; /* Cache Version Register */
	185
e96e2044	186	void *intc_handle;
efac4154	187	int in_sleep; /* SR_BL ignored during sleep */
852d481f EI	188	memory_content *movcal_backup;
852d481f EI	189	memory_content **movcal_backup_tail;
fdf9b3e8 FB	190	} CPUSH4State;
fdf9b3e8 FB	191
339894be AF	192	#include "cpu-qom.h"
339894be AF	193
445e9571	194	SuperHCPU cpu_sh4_init(const char cpu_model);
fdf9b3e8	195	int cpu_sh4_exec(CPUSH4State * s);
5fafdf24	196	int cpu_sh4_signal_handler(int host_signum, void *pinfo,
5a7b542b	197	void *puc);
42083220	198	int cpu_sh4_handle_mmu_fault(CPUSH4State * env, target_ulong address, int rw,
97b348e7	199	int mmu_idx);
0b5c1ce8	200	#define cpu_handle_mmu_fault cpu_sh4_handle_mmu_fault
42083220 AJ	201	void do_interrupt(CPUSH4State * env);
42083220 AJ	202
9a78eead	203	void sh4_cpu_list(FILE *f, fprintf_function cpu_fprintf);
3c7b48b7	204	#if !defined(CONFIG_USER_ONLY)
e0bcb9ca	205	void cpu_sh4_invalidate_tlb(CPUSH4State *s);
bc656a29	206	uint32_t cpu_sh4_read_mmaped_itlb_addr(CPUSH4State *s,
a8170e5e AK	207	hwaddr addr);
a8170e5e AK	208	void cpu_sh4_write_mmaped_itlb_addr(CPUSH4State *s, hwaddr addr,
9f97309a	209	uint32_t mem_value);
bc656a29	210	uint32_t cpu_sh4_read_mmaped_itlb_data(CPUSH4State *s,
a8170e5e AK	211	hwaddr addr);
a8170e5e AK	212	void cpu_sh4_write_mmaped_itlb_data(CPUSH4State *s, hwaddr addr,
9f97309a	213	uint32_t mem_value);
bc656a29	214	uint32_t cpu_sh4_read_mmaped_utlb_addr(CPUSH4State *s,
a8170e5e AK	215	hwaddr addr);
a8170e5e AK	216	void cpu_sh4_write_mmaped_utlb_addr(CPUSH4State *s, hwaddr addr,
9f97309a	217	uint32_t mem_value);
bc656a29	218	uint32_t cpu_sh4_read_mmaped_utlb_data(CPUSH4State *s,
a8170e5e AK	219	hwaddr addr);
a8170e5e AK	220	void cpu_sh4_write_mmaped_utlb_data(CPUSH4State *s, hwaddr addr,
9f97309a	221	uint32_t mem_value);
3c7b48b7	222	#endif
fdf9b3e8	223
852d481f EI	224	int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr);
852d481f EI	225
0b6d3ae0 AJ	226	static inline void cpu_set_tls(CPUSH4State *env, target_ulong newtls)
	227	{
	228	env->gbr = newtls;
	229	}
	230
ef7ec1c1 AJ	231	void cpu_load_tlb(CPUSH4State * env);
ef7ec1c1 AJ	232
445e9571 AF	233	static inline CPUSH4State cpu_init(const char cpu_model)
	234	{
	235	SuperHCPU *cpu = cpu_sh4_init(cpu_model);
	236	if (cpu == NULL) {
	237	return NULL;
	238	}
	239	return &cpu->env;
	240	}
	241
9467d44c TS	242	#define cpu_exec cpu_sh4_exec
	243	#define cpu_gen_code cpu_sh4_gen_code
	244	#define cpu_signal_handler cpu_sh4_signal_handler
0fd3ca30	245	#define cpu_list sh4_cpu_list
9467d44c	246
6ebbf390 JM	247	/* MMU modes definitions */
	248	#define MMU_MODE0_SUFFIX _kernel
	249	#define MMU_MODE1_SUFFIX _user
	250	#define MMU_USER_IDX 1
73e5716c	251	static inline int cpu_mmu_index (CPUSH4State *env)
6ebbf390 JM	252	{
	253	return (env->sr & SR_MD) == 0 ? 1 : 0;
	254	}
	255
6e68e076	256	#if defined(CONFIG_USER_ONLY)
73e5716c	257	static inline void cpu_clone_regs(CPUSH4State *env, target_ulong newsp)
6e68e076	258	{
f8ed7070	259	if (newsp)
6e68e076 PB	260	env->gregs[15] = newsp;
	261	env->gregs[0] = 0;
	262	}
	263	#endif
	264
022c62cb	265	#include "exec/cpu-all.h"
fdf9b3e8 FB	266
	267	/* Memory access type */
	268	enum {
	269	/* Privilege */
	270	ACCESS_PRIV = 0x01,
	271	/* Direction */
	272	ACCESS_WRITE = 0x02,
	273	/* Type of instruction */
	274	ACCESS_CODE = 0x10,
	275	ACCESS_INT = 0x20
	276	};
	277
	278	/* MMU control register */
	279	#define MMUCR 0x1F000010
	280	#define MMUCR_AT (1<<0)
e0bcb9ca	281	#define MMUCR_TI (1<<2)
fdf9b3e8	282	#define MMUCR_SV (1<<8)
ea2b542a AJ	283	#define MMUCR_URC_BITS (6)
	284	#define MMUCR_URC_OFFSET (10)
	285	#define MMUCR_URC_SIZE (1 << MMUCR_URC_BITS)
	286	#define MMUCR_URC_MASK (((MMUCR_URC_SIZE) - 1) << MMUCR_URC_OFFSET)
	287	static inline int cpu_mmucr_urc (uint32_t mmucr)
	288	{
	289	return ((mmucr & MMUCR_URC_MASK) >> MMUCR_URC_OFFSET);
	290	}
	291
	292	/* PTEH : Page Translation Entry High register */
	293	#define PTEH_ASID_BITS (8)
	294	#define PTEH_ASID_SIZE (1 << PTEH_ASID_BITS)
	295	#define PTEH_ASID_MASK (PTEH_ASID_SIZE - 1)
	296	#define cpu_pteh_asid(pteh) ((pteh) & PTEH_ASID_MASK)
	297	#define PTEH_VPN_BITS (22)
	298	#define PTEH_VPN_OFFSET (10)
	299	#define PTEH_VPN_SIZE (1 << PTEH_VPN_BITS)
	300	#define PTEH_VPN_MASK (((PTEH_VPN_SIZE) - 1) << PTEH_VPN_OFFSET)
	301	static inline int cpu_pteh_vpn (uint32_t pteh)
	302	{
	303	return ((pteh & PTEH_VPN_MASK) >> PTEH_VPN_OFFSET);
	304	}
	305
	306	/* PTEL : Page Translation Entry Low register */
	307	#define PTEL_V (1 << 8)
	308	#define cpu_ptel_v(ptel) (((ptel) & PTEL_V) >> 8)
	309	#define PTEL_C (1 << 3)
	310	#define cpu_ptel_c(ptel) (((ptel) & PTEL_C) >> 3)
	311	#define PTEL_D (1 << 2)
	312	#define cpu_ptel_d(ptel) (((ptel) & PTEL_D) >> 2)
	313	#define PTEL_SH (1 << 1)
	314	#define cpu_ptel_sh(ptel)(((ptel) & PTEL_SH) >> 1)
	315	#define PTEL_WT (1 << 0)
	316	#define cpu_ptel_wt(ptel) ((ptel) & PTEL_WT)
	317
	318	#define PTEL_SZ_HIGH_OFFSET (7)
	319	#define PTEL_SZ_HIGH (1 << PTEL_SZ_HIGH_OFFSET)
	320	#define PTEL_SZ_LOW_OFFSET (4)
	321	#define PTEL_SZ_LOW (1 << PTEL_SZ_LOW_OFFSET)
	322	static inline int cpu_ptel_sz (uint32_t ptel)
	323	{
	324	int sz;
	325	sz = (ptel & PTEL_SZ_HIGH) >> PTEL_SZ_HIGH_OFFSET;
	326	sz <<= 1;
	327	sz \|= (ptel & PTEL_SZ_LOW) >> PTEL_SZ_LOW_OFFSET;
	328	return sz;
	329	}
	330
	331	#define PTEL_PPN_BITS (19)
	332	#define PTEL_PPN_OFFSET (10)
	333	#define PTEL_PPN_SIZE (1 << PTEL_PPN_BITS)
	334	#define PTEL_PPN_MASK (((PTEL_PPN_SIZE) - 1) << PTEL_PPN_OFFSET)
	335	static inline int cpu_ptel_ppn (uint32_t ptel)
	336	{
	337	return ((ptel & PTEL_PPN_MASK) >> PTEL_PPN_OFFSET);
	338	}
	339
	340	#define PTEL_PR_BITS (2)
	341	#define PTEL_PR_OFFSET (5)
	342	#define PTEL_PR_SIZE (1 << PTEL_PR_BITS)
	343	#define PTEL_PR_MASK (((PTEL_PR_SIZE) - 1) << PTEL_PR_OFFSET)
	344	static inline int cpu_ptel_pr (uint32_t ptel)
	345	{
	346	return ((ptel & PTEL_PR_MASK) >> PTEL_PR_OFFSET);
347	}
348
349	/* PTEA : Page Translation Entry Assistance register */
350	#define PTEA_SA_BITS (3)
351	#define PTEA_SA_SIZE (1 << PTEA_SA_BITS)
352	#define PTEA_SA_MASK (PTEA_SA_SIZE - 1)
353	#define cpu_ptea_sa(ptea) ((ptea) & PTEA_SA_MASK)
354	#define PTEA_TC (1 << 3)
355	#define cpu_ptea_tc(ptea) (((ptea) & PTEA_TC) >> 3)
fdf9b3e8	356
852d481f EI	357	#define TB_FLAG_PENDING_MOVCA (1 << 4)
852d481f EI	358
73e5716c	359	static inline void cpu_get_tb_cpu_state(CPUSH4State env, target_ulong pc,
6b917547 AL	360	target_ulong cs_base, int flags)
	361	{
	362	*pc = env->pc;
	363	*cs_base = 0;
	364	*flags = (env->flags & (DELAY_SLOT \| DELAY_SLOT_CONDITIONAL
	365	\| DELAY_SLOT_TRUE \| DELAY_SLOT_CLEARME)) /* Bits 0- 3 */
	366	\| (env->fpscr & (FPSCR_FR \| FPSCR_SZ \| FPSCR_PR)) /* Bits 19-21 */
d8299bcc	367	\| (env->sr & (SR_MD \| SR_RB)) /* Bits 29-30 */
852d481f EI	368	\| (env->sr & SR_FD) /* Bit 15 */
852d481f EI	369	\| (env->movcal_backup ? TB_FLAG_PENDING_MOVCA : 0); /* Bit 4 */
6b917547 AL	370	}
6b917547 AL	371
3993c6bd	372	static inline bool cpu_has_work(CPUState *cpu)
f081c76c	373	{
3993c6bd AF	374	CPUSH4State *env = &SUPERH_CPU(cpu)->env;
3993c6bd AF	375
f081c76c BS	376	return env->interrupt_request & CPU_INTERRUPT_HARD;
	377	}
	378
022c62cb	379	#include "exec/exec-all.h"
f081c76c	380
73e5716c	381	static inline void cpu_pc_from_tb(CPUSH4State env, TranslationBlock tb)
f081c76c BS	382	{
	383	env->pc = tb->pc;
	384	env->flags = tb->flags;
	385	}
	386
fdf9b3e8	387	#endif /* _CPU_SH4_H */