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

/*
 *  Alpha emulation cpu definitions for qemu.
 *
 *  Copyright (c) 2007 Jocelyn Mayer
 *
 * 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/>.
 */

#if !defined (__CPU_ALPHA_H__)
#define __CPU_ALPHA_H__

#include "config.h"

#define TARGET_LONG_BITS 64

#define CPUState struct CPUAlphaState

#include "cpu-defs.h"

#include <setjmp.h>

#include "softfloat.h"

#define TARGET_HAS_ICE 1

#define ELF_MACHINE     EM_ALPHA

#define ICACHE_LINE_SIZE 32
#define DCACHE_LINE_SIZE 32

#define TARGET_PAGE_BITS 13

/* ??? EV4 has 34 phys addr bits, EV5 has 40, EV6 has 44.  */
#define TARGET_PHYS_ADDR_SPACE_BITS	44
#define TARGET_VIRT_ADDR_SPACE_BITS	(30 + TARGET_PAGE_BITS)

/* Alpha major type */
enum {
    ALPHA_EV3  = 1,
    ALPHA_EV4  = 2,
    ALPHA_SIM  = 3,
    ALPHA_LCA  = 4,
    ALPHA_EV5  = 5, /* 21164 */
    ALPHA_EV45 = 6, /* 21064A */
    ALPHA_EV56 = 7, /* 21164A */
};

/* EV4 minor type */
enum {
    ALPHA_EV4_2 = 0,
    ALPHA_EV4_3 = 1,
};

/* LCA minor type */
enum {
    ALPHA_LCA_1 = 1, /* 21066 */
    ALPHA_LCA_2 = 2, /* 20166 */
    ALPHA_LCA_3 = 3, /* 21068 */
    ALPHA_LCA_4 = 4, /* 21068 */
    ALPHA_LCA_5 = 5, /* 21066A */
    ALPHA_LCA_6 = 6, /* 21068A */
};

/* EV5 minor type */
enum {
    ALPHA_EV5_1 = 1, /* Rev BA, CA */
    ALPHA_EV5_2 = 2, /* Rev DA, EA */
    ALPHA_EV5_3 = 3, /* Pass 3 */
    ALPHA_EV5_4 = 4, /* Pass 3.2 */
    ALPHA_EV5_5 = 5, /* Pass 4 */
};

/* EV45 minor type */
enum {
    ALPHA_EV45_1 = 1, /* Pass 1 */
    ALPHA_EV45_2 = 2, /* Pass 1.1 */
    ALPHA_EV45_3 = 3, /* Pass 2 */
};

/* EV56 minor type */
enum {
    ALPHA_EV56_1 = 1, /* Pass 1 */
    ALPHA_EV56_2 = 2, /* Pass 2 */
};

enum {
    IMPLVER_2106x = 0, /* EV4, EV45 & LCA45 */
    IMPLVER_21164 = 1, /* EV5, EV56 & PCA45 */
    IMPLVER_21264 = 2, /* EV6, EV67 & EV68x */
    IMPLVER_21364 = 3, /* EV7 & EV79 */
};

enum {
    AMASK_BWX      = 0x00000001,
    AMASK_FIX      = 0x00000002,
    AMASK_CIX      = 0x00000004,
    AMASK_MVI      = 0x00000100,
    AMASK_TRAP     = 0x00000200,
    AMASK_PREFETCH = 0x00001000,
};

enum {
    VAX_ROUND_NORMAL = 0,
    VAX_ROUND_CHOPPED,
};

enum {
    IEEE_ROUND_NORMAL = 0,
    IEEE_ROUND_DYNAMIC,
    IEEE_ROUND_PLUS,
    IEEE_ROUND_MINUS,
    IEEE_ROUND_CHOPPED,
};

/* IEEE floating-point operations encoding */
/* Trap mode */
enum {
    FP_TRAP_I   = 0x0,
    FP_TRAP_U   = 0x1,
    FP_TRAP_S  = 0x4,
    FP_TRAP_SU  = 0x5,
    FP_TRAP_SUI = 0x7,
};

/* Rounding mode */
enum {
    FP_ROUND_CHOPPED = 0x0,
    FP_ROUND_MINUS   = 0x1,
    FP_ROUND_NORMAL  = 0x2,
    FP_ROUND_DYNAMIC = 0x3,
};

/* FPCR bits */
#define FPCR_SUM		(1ULL << 63)
#define FPCR_INED		(1ULL << 62)
#define FPCR_UNFD		(1ULL << 61)
#define FPCR_UNDZ		(1ULL << 60)
#define FPCR_DYN_SHIFT		58
#define FPCR_DYN_CHOPPED	(0ULL << FPCR_DYN_SHIFT)
#define FPCR_DYN_MINUS		(1ULL << FPCR_DYN_SHIFT)
#define FPCR_DYN_NORMAL		(2ULL << FPCR_DYN_SHIFT)
#define FPCR_DYN_PLUS		(3ULL << FPCR_DYN_SHIFT)
#define FPCR_DYN_MASK		(3ULL << FPCR_DYN_SHIFT)
#define FPCR_IOV		(1ULL << 57)
#define FPCR_INE		(1ULL << 56)
#define FPCR_UNF		(1ULL << 55)
#define FPCR_OVF		(1ULL << 54)
#define FPCR_DZE		(1ULL << 53)
#define FPCR_INV		(1ULL << 52)
#define FPCR_OVFD		(1ULL << 51)
#define FPCR_DZED		(1ULL << 50)
#define FPCR_INVD		(1ULL << 49)
#define FPCR_DNZ		(1ULL << 48)
#define FPCR_DNOD		(1ULL << 47)
#define FPCR_STATUS_MASK	(FPCR_IOV | FPCR_INE | FPCR_UNF \
				 | FPCR_OVF | FPCR_DZE | FPCR_INV)

/* The silly software trap enables implemented by the kernel emulation.
   These are more or less architecturally required, since the real hardware
   has read-as-zero bits in the FPCR when the features aren't implemented.
   For the purposes of QEMU, we pretend the FPCR can hold everything.  */
#define SWCR_TRAP_ENABLE_INV	(1ULL << 1)
#define SWCR_TRAP_ENABLE_DZE	(1ULL << 2)
#define SWCR_TRAP_ENABLE_OVF	(1ULL << 3)
#define SWCR_TRAP_ENABLE_UNF	(1ULL << 4)
#define SWCR_TRAP_ENABLE_INE	(1ULL << 5)
#define SWCR_TRAP_ENABLE_DNO	(1ULL << 6)
#define SWCR_TRAP_ENABLE_MASK	((1ULL << 7) - (1ULL << 1))

#define SWCR_MAP_DMZ		(1ULL << 12)
#define SWCR_MAP_UMZ		(1ULL << 13)
#define SWCR_MAP_MASK		(SWCR_MAP_DMZ | SWCR_MAP_UMZ)

#define SWCR_STATUS_INV		(1ULL << 17)
#define SWCR_STATUS_DZE		(1ULL << 18)
#define SWCR_STATUS_OVF		(1ULL << 19)
#define SWCR_STATUS_UNF		(1ULL << 20)
#define SWCR_STATUS_INE		(1ULL << 21)
#define SWCR_STATUS_DNO		(1ULL << 22)
#define SWCR_STATUS_MASK	((1ULL << 23) - (1ULL << 17))

#define SWCR_MASK  (SWCR_TRAP_ENABLE_MASK | SWCR_MAP_MASK | SWCR_STATUS_MASK)

/* Internal processor registers */
/* XXX: TOFIX: most of those registers are implementation dependant */
enum {
#if defined(CONFIG_USER_ONLY)
    IPR_EXC_ADDR,
    IPR_EXC_SUM,
    IPR_EXC_MASK,
#else
    /* Ebox IPRs */
    IPR_CC           = 0xC0,            /* 21264 */
    IPR_CC_CTL       = 0xC1,            /* 21264 */
#define IPR_CC_CTL_ENA_SHIFT 32
#define IPR_CC_CTL_COUNTER_MASK 0xfffffff0UL
    IPR_VA           = 0xC2,            /* 21264 */
    IPR_VA_CTL       = 0xC4,            /* 21264 */
#define IPR_VA_CTL_VA_48_SHIFT 1
#define IPR_VA_CTL_VPTB_SHIFT 30
    IPR_VA_FORM      = 0xC3,            /* 21264 */
    /* Ibox IPRs */
    IPR_ITB_TAG      = 0x00,            /* 21264 */
    IPR_ITB_PTE      = 0x01,            /* 21264 */
    IPR_ITB_IAP      = 0x02,
    IPR_ITB_IA       = 0x03,            /* 21264 */
    IPR_ITB_IS       = 0x04,            /* 21264 */
    IPR_PMPC         = 0x05,
    IPR_EXC_ADDR     = 0x06,            /* 21264 */
    IPR_IVA_FORM     = 0x07,            /* 21264 */
    IPR_CM           = 0x09,            /* 21264 */
#define IPR_CM_SHIFT 3
#define IPR_CM_MASK (3ULL << IPR_CM_SHIFT)      /* 21264 */
    IPR_IER          = 0x0A,            /* 21264 */
#define IPR_IER_MASK 0x0000007fffffe000ULL
    IPR_IER_CM       = 0x0B,            /* 21264: = CM | IER */
    IPR_SIRR         = 0x0C,            /* 21264 */
#define IPR_SIRR_SHIFT 14
#define IPR_SIRR_MASK 0x7fff
    IPR_ISUM         = 0x0D,            /* 21264 */
    IPR_HW_INT_CLR   = 0x0E,            /* 21264 */
    IPR_EXC_SUM      = 0x0F,
    IPR_PAL_BASE     = 0x10,
    IPR_I_CTL        = 0x11,
#define IPR_I_CTL_CHIP_ID_SHIFT 24      /* 21264 */
#define IPR_I_CTL_BIST_FAIL (1 << 23)   /* 21264 */
#define IPR_I_CTL_IC_EN_SHIFT 2         /* 21264 */
#define IPR_I_CTL_SDE1_SHIFT 7          /* 21264 */
#define IPR_I_CTL_HWE_SHIFT 12          /* 21264 */
#define IPR_I_CTL_VA_48_SHIFT 15        /* 21264 */
#define IPR_I_CTL_SPE_SHIFT 3           /* 21264 */
#define IPR_I_CTL_CALL_PAL_R23_SHIFT 20 /* 21264 */
    IPR_I_STAT       = 0x16,            /* 21264 */
    IPR_IC_FLUSH     = 0x13,            /* 21264 */
    IPR_IC_FLUSH_ASM = 0x12,            /* 21264 */
    IPR_CLR_MAP      = 0x15,
    IPR_SLEEP        = 0x17,
    IPR_PCTX         = 0x40,
    IPR_PCTX_ASN       = 0x01,  /* field */
#define IPR_PCTX_ASN_SHIFT 39
    IPR_PCTX_ASTER     = 0x02,  /* field */
#define IPR_PCTX_ASTER_SHIFT 5
    IPR_PCTX_ASTRR     = 0x04,  /* field */
#define IPR_PCTX_ASTRR_SHIFT 9
    IPR_PCTX_PPCE      = 0x08,  /* field */
#define IPR_PCTX_PPCE_SHIFT 1
    IPR_PCTX_FPE       = 0x10,  /* field */
#define IPR_PCTX_FPE_SHIFT 2
    IPR_PCTX_ALL       = 0x5f,  /* all fields */
    IPR_PCTR_CTL     = 0x14,            /* 21264 */
    /* Mbox IPRs */
    IPR_DTB_TAG0     = 0x20,            /* 21264 */
    IPR_DTB_TAG1     = 0xA0,            /* 21264 */
    IPR_DTB_PTE0     = 0x21,            /* 21264 */
    IPR_DTB_PTE1     = 0xA1,            /* 21264 */
    IPR_DTB_ALTMODE  = 0xA6,
    IPR_DTB_ALTMODE0 = 0x26,            /* 21264 */
#define IPR_DTB_ALTMODE_MASK 3
    IPR_DTB_IAP      = 0xA2,
    IPR_DTB_IA       = 0xA3,            /* 21264 */
    IPR_DTB_IS0      = 0x24,
    IPR_DTB_IS1      = 0xA4,
    IPR_DTB_ASN0     = 0x25,            /* 21264 */
    IPR_DTB_ASN1     = 0xA5,            /* 21264 */
#define IPR_DTB_ASN_SHIFT 56
    IPR_MM_STAT      = 0x27,            /* 21264 */
    IPR_M_CTL        = 0x28,            /* 21264 */
#define IPR_M_CTL_SPE_SHIFT 1
#define IPR_M_CTL_SPE_MASK 7
    IPR_DC_CTL       = 0x29,            /* 21264 */
    IPR_DC_STAT      = 0x2A,            /* 21264 */
    /* Cbox IPRs */
    IPR_C_DATA       = 0x2B,
    IPR_C_SHIFT      = 0x2C,

    IPR_ASN,
    IPR_ASTEN,
    IPR_ASTSR,
    IPR_DATFX,
    IPR_ESP,
    IPR_FEN,
    IPR_IPIR,
    IPR_IPL,
    IPR_KSP,
    IPR_MCES,
    IPR_PERFMON,
    IPR_PCBB,
    IPR_PRBR,
    IPR_PTBR,
    IPR_SCBB,
    IPR_SISR,
    IPR_SSP,
    IPR_SYSPTBR,
    IPR_TBCHK,
    IPR_TBIA,
    IPR_TBIAP,
    IPR_TBIS,
    IPR_TBISD,
    IPR_TBISI,
    IPR_USP,
    IPR_VIRBND,
    IPR_VPTB,
    IPR_WHAMI,
    IPR_ALT_MODE,
#endif
    IPR_LAST,
};

typedef struct CPUAlphaState CPUAlphaState;

typedef struct pal_handler_t pal_handler_t;
struct pal_handler_t {
    /* Reset */
    void (*reset)(CPUAlphaState *env);
    /* Uncorrectable hardware error */
    void (*machine_check)(CPUAlphaState *env);
    /* Arithmetic exception */
    void (*arithmetic)(CPUAlphaState *env);
    /* Interrupt / correctable hardware error */
    void (*interrupt)(CPUAlphaState *env);
    /* Data fault */
    void (*dfault)(CPUAlphaState *env);
    /* DTB miss pal */
    void (*dtb_miss_pal)(CPUAlphaState *env);
    /* DTB miss native */
    void (*dtb_miss_native)(CPUAlphaState *env);
    /* Unaligned access */
    void (*unalign)(CPUAlphaState *env);
    /* ITB miss */
    void (*itb_miss)(CPUAlphaState *env);
    /* Instruction stream access violation */
    void (*itb_acv)(CPUAlphaState *env);
    /* Reserved or privileged opcode */
    void (*opcdec)(CPUAlphaState *env);
    /* Floating point exception */
    void (*fen)(CPUAlphaState *env);
    /* Call pal instruction */
    void (*call_pal)(CPUAlphaState *env, uint32_t palcode);
};

#define NB_MMU_MODES 4

struct CPUAlphaState {
    uint64_t ir[31];
    float64 fir[31];
    uint64_t pc;
    uint64_t lock;
    uint32_t pcc[2];
    uint64_t ipr[IPR_LAST];
    uint64_t ps;
    uint64_t unique;
    float_status fp_status;
    /* The following fields make up the FPCR, but in FP_STATUS format.  */
    uint8_t fpcr_exc_status;
    uint8_t fpcr_exc_mask;
    uint8_t fpcr_dyn_round;
    uint8_t fpcr_flush_to_zero;
    uint8_t fpcr_dnz;
    uint8_t fpcr_dnod;
    uint8_t fpcr_undz;

    /* Used for HW_LD / HW_ST */
    uint8_t saved_mode;
    /* For RC and RS */
    uint8_t intr_flag;

#if TARGET_LONG_BITS > HOST_LONG_BITS
    /* temporary fixed-point registers
     * used to emulate 64 bits target on 32 bits hosts
     */
    target_ulong t0, t1;
#endif

    /* Those resources are used only in Qemu core */
    CPU_COMMON

    uint32_t hflags;

    int error_code;

    uint32_t features;
    uint32_t amask;
    int implver;
    pal_handler_t *pal_handler;
};

#define cpu_init cpu_alpha_init
#define cpu_exec cpu_alpha_exec
#define cpu_gen_code cpu_alpha_gen_code
#define cpu_signal_handler cpu_alpha_signal_handler

/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _kernel
#define MMU_MODE1_SUFFIX _executive
#define MMU_MODE2_SUFFIX _supervisor
#define MMU_MODE3_SUFFIX _user
#define MMU_USER_IDX 3
static inline int cpu_mmu_index (CPUState *env)
{
    return (env->ps >> 3) & 3;
}

#if defined(CONFIG_USER_ONLY)
static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
{
    if (newsp)
        env->ir[30] = newsp;
    /* FIXME: Zero syscall return value.  */
}
#endif

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

enum {
    FEATURE_ASN    = 0x00000001,
    FEATURE_SPS    = 0x00000002,
    FEATURE_VIRBND = 0x00000004,
    FEATURE_TBCHK  = 0x00000008,
};

enum {
    EXCP_RESET            = 0x0000,
    EXCP_MCHK             = 0x0020,
    EXCP_ARITH            = 0x0060,
    EXCP_HW_INTERRUPT     = 0x00E0,
    EXCP_DFAULT           = 0x01E0,
    EXCP_DTB_MISS_PAL     = 0x09E0,
    EXCP_ITB_MISS         = 0x03E0,
    EXCP_ITB_ACV          = 0x07E0,
    EXCP_DTB_MISS_NATIVE  = 0x08E0,
    EXCP_UNALIGN          = 0x11E0,
    EXCP_OPCDEC           = 0x13E0,
    EXCP_FEN              = 0x17E0,
    EXCP_CALL_PAL         = 0x2000,
    EXCP_CALL_PALP        = 0x3000,
    EXCP_CALL_PALE        = 0x4000,
    /* Pseudo exception for console */
    EXCP_CONSOLE_DISPATCH = 0x4001,
    EXCP_CONSOLE_FIXUP    = 0x4002,
};

/* Arithmetic exception */
#define EXC_M_IOV       (1<<16)         /* Integer Overflow */
#define EXC_M_INE       (1<<15)         /* Inexact result */
#define EXC_M_UNF       (1<<14)         /* Underflow */
#define EXC_M_FOV       (1<<13)         /* Overflow */
#define EXC_M_DZE       (1<<12)         /* Division by zero */
#define EXC_M_INV       (1<<11)         /* Invalid operation */
#define EXC_M_SWC       (1<<10)         /* Software completion */

enum {
    IR_V0   = 0,
    IR_T0   = 1,
    IR_T1   = 2,
    IR_T2   = 3,
    IR_T3   = 4,
    IR_T4   = 5,
    IR_T5   = 6,
    IR_T6   = 7,
    IR_T7   = 8,
    IR_S0   = 9,
    IR_S1   = 10,
    IR_S2   = 11,
    IR_S3   = 12,
    IR_S4   = 13,
    IR_S5   = 14,
    IR_S6   = 15,
#define IR_FP IR_S6
    IR_A0   = 16,
    IR_A1   = 17,
    IR_A2   = 18,
    IR_A3   = 19,
    IR_A4   = 20,
    IR_A5   = 21,
    IR_T8   = 22,
    IR_T9   = 23,
    IR_T10  = 24,
    IR_T11  = 25,
    IR_RA   = 26,
    IR_T12  = 27,
#define IR_PV IR_T12
    IR_AT   = 28,
    IR_GP   = 29,
    IR_SP   = 30,
    IR_ZERO = 31,
};

CPUAlphaState * cpu_alpha_init (const char *cpu_model);
int cpu_alpha_exec(CPUAlphaState *s);
/* you can call this signal handler from your SIGBUS and SIGSEGV
   signal handlers to inform the virtual CPU of exceptions. non zero
   is returned if the signal was handled by the virtual CPU.  */
int cpu_alpha_signal_handler(int host_signum, void *pinfo,
                             void *puc);
int cpu_alpha_handle_mmu_fault (CPUState *env, uint64_t address, int rw,
                                int mmu_idx, int is_softmmu);
#define cpu_handle_mmu_fault cpu_alpha_handle_mmu_fault
void do_interrupt (CPUState *env);

uint64_t cpu_alpha_load_fpcr (CPUState *env);
void cpu_alpha_store_fpcr (CPUState *env, uint64_t val);
int cpu_alpha_mfpr (CPUState *env, int iprn, uint64_t *valp);
int cpu_alpha_mtpr (CPUState *env, int iprn, uint64_t val, uint64_t *oldvalp);
#if !defined (CONFIG_USER_ONLY)
void pal_init (CPUState *env);
void call_pal (CPUState *env);
#endif

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

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 = env->ps;
}

#endif /* !defined (__CPU_ALPHA_H__) */
Commit	Line	Data
4c9649a9 JM	1	/*
4c9649a9 JM	2	* Alpha emulation cpu definitions for qemu.
5fafdf24	3	*
4c9649a9 JM	4	* Copyright (c) 2007 Jocelyn Mayer
	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/>.
4c9649a9 JM	18	*/
	19
	20	#if !defined (__CPU_ALPHA_H__)
	21	#define __CPU_ALPHA_H__
	22
	23	#include "config.h"
	24
	25	#define TARGET_LONG_BITS 64
	26
c2764719 PB	27	#define CPUState struct CPUAlphaState
c2764719 PB	28
4c9649a9 JM	29	#include "cpu-defs.h"
4c9649a9 JM	30
4c9649a9 JM	31	#include <setjmp.h>
	32
	33	#include "softfloat.h"
	34
4c9649a9 JM	35	#define TARGET_HAS_ICE 1
4c9649a9 JM	36
f071b4d3	37	#define ELF_MACHINE EM_ALPHA
4c9649a9 JM	38
	39	#define ICACHE_LINE_SIZE 32
	40	#define DCACHE_LINE_SIZE 32
	41
b09d9d46	42	#define TARGET_PAGE_BITS 13
4c9649a9	43
52705890 RH	44	/* ??? EV4 has 34 phys addr bits, EV5 has 40, EV6 has 44. */
	45	#define TARGET_PHYS_ADDR_SPACE_BITS 44
	46	#define TARGET_VIRT_ADDR_SPACE_BITS (30 + TARGET_PAGE_BITS)
4c9649a9 JM	47
	48	/* Alpha major type */
	49	enum {
	50	ALPHA_EV3 = 1,
	51	ALPHA_EV4 = 2,
	52	ALPHA_SIM = 3,
	53	ALPHA_LCA = 4,
	54	ALPHA_EV5 = 5, /* 21164 */
	55	ALPHA_EV45 = 6, /* 21064A */
	56	ALPHA_EV56 = 7, /* 21164A */
	57	};
	58
	59	/* EV4 minor type */
	60	enum {
	61	ALPHA_EV4_2 = 0,
	62	ALPHA_EV4_3 = 1,
	63	};
	64
	65	/* LCA minor type */
	66	enum {
	67	ALPHA_LCA_1 = 1, /* 21066 */
	68	ALPHA_LCA_2 = 2, /* 20166 */
	69	ALPHA_LCA_3 = 3, /* 21068 */
	70	ALPHA_LCA_4 = 4, /* 21068 */
	71	ALPHA_LCA_5 = 5, /* 21066A */
	72	ALPHA_LCA_6 = 6, /* 21068A */
	73	};
	74
	75	/* EV5 minor type */
	76	enum {
	77	ALPHA_EV5_1 = 1, /* Rev BA, CA */
	78	ALPHA_EV5_2 = 2, /* Rev DA, EA */
	79	ALPHA_EV5_3 = 3, /* Pass 3 */
	80	ALPHA_EV5_4 = 4, /* Pass 3.2 */
	81	ALPHA_EV5_5 = 5, /* Pass 4 */
	82	};
	83
	84	/* EV45 minor type */
	85	enum {
	86	ALPHA_EV45_1 = 1, /* Pass 1 */
	87	ALPHA_EV45_2 = 2, /* Pass 1.1 */
	88	ALPHA_EV45_3 = 3, /* Pass 2 */
	89	};
	90
	91	/* EV56 minor type */
	92	enum {
	93	ALPHA_EV56_1 = 1, /* Pass 1 */
	94	ALPHA_EV56_2 = 2, /* Pass 2 */
	95	};
	96
	97	enum {
	98	IMPLVER_2106x = 0, /* EV4, EV45 & LCA45 */
	99	IMPLVER_21164 = 1, /* EV5, EV56 & PCA45 */
	100	IMPLVER_21264 = 2, /* EV6, EV67 & EV68x */
	101	IMPLVER_21364 = 3, /* EV7 & EV79 */
	102	};
	103
	104	enum {
	105	AMASK_BWX = 0x00000001,
	106	AMASK_FIX = 0x00000002,
	107	AMASK_CIX = 0x00000004,
	108	AMASK_MVI = 0x00000100,
	109	AMASK_TRAP = 0x00000200,
	110	AMASK_PREFETCH = 0x00001000,
111	};
112
113	enum {
114	VAX_ROUND_NORMAL = 0,
115	VAX_ROUND_CHOPPED,
116	};
117
118	enum {
119	IEEE_ROUND_NORMAL = 0,
120	IEEE_ROUND_DYNAMIC,
121	IEEE_ROUND_PLUS,
122	IEEE_ROUND_MINUS,
123	IEEE_ROUND_CHOPPED,
124	};
125
126	/* IEEE floating-point operations encoding */
127	/* Trap mode */
128	enum {
129	FP_TRAP_I = 0x0,
130	FP_TRAP_U = 0x1,
131	FP_TRAP_S = 0x4,
132	FP_TRAP_SU = 0x5,
133	FP_TRAP_SUI = 0x7,
134	};
135
136	/* Rounding mode */
137	enum {
138	FP_ROUND_CHOPPED = 0x0,
139	FP_ROUND_MINUS = 0x1,
140	FP_ROUND_NORMAL = 0x2,
141	FP_ROUND_DYNAMIC = 0x3,
142	};
143
ba0e276d RH	144	/* FPCR bits */
	145	#define FPCR_SUM (1ULL << 63)
	146	#define FPCR_INED (1ULL << 62)
	147	#define FPCR_UNFD (1ULL << 61)
	148	#define FPCR_UNDZ (1ULL << 60)
	149	#define FPCR_DYN_SHIFT 58
8443effb RH	150	#define FPCR_DYN_CHOPPED (0ULL << FPCR_DYN_SHIFT)
	151	#define FPCR_DYN_MINUS (1ULL << FPCR_DYN_SHIFT)
	152	#define FPCR_DYN_NORMAL (2ULL << FPCR_DYN_SHIFT)
	153	#define FPCR_DYN_PLUS (3ULL << FPCR_DYN_SHIFT)
ba0e276d RH	154	#define FPCR_DYN_MASK (3ULL << FPCR_DYN_SHIFT)
	155	#define FPCR_IOV (1ULL << 57)
	156	#define FPCR_INE (1ULL << 56)
	157	#define FPCR_UNF (1ULL << 55)
	158	#define FPCR_OVF (1ULL << 54)
	159	#define FPCR_DZE (1ULL << 53)
	160	#define FPCR_INV (1ULL << 52)
	161	#define FPCR_OVFD (1ULL << 51)
	162	#define FPCR_DZED (1ULL << 50)
	163	#define FPCR_INVD (1ULL << 49)
	164	#define FPCR_DNZ (1ULL << 48)
	165	#define FPCR_DNOD (1ULL << 47)
	166	#define FPCR_STATUS_MASK (FPCR_IOV \| FPCR_INE \| FPCR_UNF \
	167	\| FPCR_OVF \| FPCR_DZE \| FPCR_INV)
	168
	169	/* The silly software trap enables implemented by the kernel emulation.
	170	These are more or less architecturally required, since the real hardware
	171	has read-as-zero bits in the FPCR when the features aren't implemented.
	172	For the purposes of QEMU, we pretend the FPCR can hold everything. */
	173	#define SWCR_TRAP_ENABLE_INV (1ULL << 1)
	174	#define SWCR_TRAP_ENABLE_DZE (1ULL << 2)
	175	#define SWCR_TRAP_ENABLE_OVF (1ULL << 3)
	176	#define SWCR_TRAP_ENABLE_UNF (1ULL << 4)
	177	#define SWCR_TRAP_ENABLE_INE (1ULL << 5)
	178	#define SWCR_TRAP_ENABLE_DNO (1ULL << 6)
	179	#define SWCR_TRAP_ENABLE_MASK ((1ULL << 7) - (1ULL << 1))
	180
	181	#define SWCR_MAP_DMZ (1ULL << 12)
	182	#define SWCR_MAP_UMZ (1ULL << 13)
	183	#define SWCR_MAP_MASK (SWCR_MAP_DMZ \| SWCR_MAP_UMZ)
	184
	185	#define SWCR_STATUS_INV (1ULL << 17)
	186	#define SWCR_STATUS_DZE (1ULL << 18)
	187	#define SWCR_STATUS_OVF (1ULL << 19)
	188	#define SWCR_STATUS_UNF (1ULL << 20)
	189	#define SWCR_STATUS_INE (1ULL << 21)
	190	#define SWCR_STATUS_DNO (1ULL << 22)
	191	#define SWCR_STATUS_MASK ((1ULL << 23) - (1ULL << 17))
	192
	193	#define SWCR_MASK (SWCR_TRAP_ENABLE_MASK \| SWCR_MAP_MASK \| SWCR_STATUS_MASK)
	194
4c9649a9 JM	195	/* Internal processor registers */
	196	/* XXX: TOFIX: most of those registers are implementation dependant */
	197	enum {
dad081ee RH	198	#if defined(CONFIG_USER_ONLY)
	199	IPR_EXC_ADDR,
	200	IPR_EXC_SUM,
	201	IPR_EXC_MASK,
	202	#else
4c9649a9	203	/* Ebox IPRs */
f8cc8534 AJ	204	IPR_CC = 0xC0, /* 21264 */
	205	IPR_CC_CTL = 0xC1, /* 21264 */
	206	#define IPR_CC_CTL_ENA_SHIFT 32
	207	#define IPR_CC_CTL_COUNTER_MASK 0xfffffff0UL
	208	IPR_VA = 0xC2, /* 21264 */
	209	IPR_VA_CTL = 0xC4, /* 21264 */
	210	#define IPR_VA_CTL_VA_48_SHIFT 1
	211	#define IPR_VA_CTL_VPTB_SHIFT 30
	212	IPR_VA_FORM = 0xC3, /* 21264 */
4c9649a9	213	/* Ibox IPRs */
f8cc8534 AJ	214	IPR_ITB_TAG = 0x00, /* 21264 */
	215	IPR_ITB_PTE = 0x01, /* 21264 */
	216	IPR_ITB_IAP = 0x02,
	217	IPR_ITB_IA = 0x03, /* 21264 */
2642cdb3	218	IPR_ITB_IS = 0x04, /* 21264 */
4c9649a9	219	IPR_PMPC = 0x05,
f8cc8534 AJ	220	IPR_EXC_ADDR = 0x06, /* 21264 */
	221	IPR_IVA_FORM = 0x07, /* 21264 */
	222	IPR_CM = 0x09, /* 21264 */
	223	#define IPR_CM_SHIFT 3
	224	#define IPR_CM_MASK (3ULL << IPR_CM_SHIFT) /* 21264 */
	225	IPR_IER = 0x0A, /* 21264 */
	226	#define IPR_IER_MASK 0x0000007fffffe000ULL
	227	IPR_IER_CM = 0x0B, /* 21264: = CM \| IER */
	228	IPR_SIRR = 0x0C, /* 21264 */
	229	#define IPR_SIRR_SHIFT 14
	230	#define IPR_SIRR_MASK 0x7fff
	231	IPR_ISUM = 0x0D, /* 21264 */
	232	IPR_HW_INT_CLR = 0x0E, /* 21264 */
4c9649a9 JM	233	IPR_EXC_SUM = 0x0F,
	234	IPR_PAL_BASE = 0x10,
	235	IPR_I_CTL = 0x11,
f8cc8534 AJ	236	#define IPR_I_CTL_CHIP_ID_SHIFT 24 /* 21264 */
	237	#define IPR_I_CTL_BIST_FAIL (1 << 23) /* 21264 */
	238	#define IPR_I_CTL_IC_EN_SHIFT 2 /* 21264 */
	239	#define IPR_I_CTL_SDE1_SHIFT 7 /* 21264 */
	240	#define IPR_I_CTL_HWE_SHIFT 12 /* 21264 */
	241	#define IPR_I_CTL_VA_48_SHIFT 15 /* 21264 */
	242	#define IPR_I_CTL_SPE_SHIFT 3 /* 21264 */
	243	#define IPR_I_CTL_CALL_PAL_R23_SHIFT 20 /* 21264 */
	244	IPR_I_STAT = 0x16, /* 21264 */
	245	IPR_IC_FLUSH = 0x13, /* 21264 */
	246	IPR_IC_FLUSH_ASM = 0x12, /* 21264 */
4c9649a9 JM	247	IPR_CLR_MAP = 0x15,
	248	IPR_SLEEP = 0x17,
	249	IPR_PCTX = 0x40,
f8cc8534 AJ	250	IPR_PCTX_ASN = 0x01, /* field */
	251	#define IPR_PCTX_ASN_SHIFT 39
	252	IPR_PCTX_ASTER = 0x02, /* field */
	253	#define IPR_PCTX_ASTER_SHIFT 5
	254	IPR_PCTX_ASTRR = 0x04, /* field */
	255	#define IPR_PCTX_ASTRR_SHIFT 9
	256	IPR_PCTX_PPCE = 0x08, /* field */
	257	#define IPR_PCTX_PPCE_SHIFT 1
	258	IPR_PCTX_FPE = 0x10, /* field */
	259	#define IPR_PCTX_FPE_SHIFT 2
	260	IPR_PCTX_ALL = 0x5f, /* all fields */
	261	IPR_PCTR_CTL = 0x14, /* 21264 */
4c9649a9	262	/* Mbox IPRs */
f8cc8534 AJ	263	IPR_DTB_TAG0 = 0x20, /* 21264 */
	264	IPR_DTB_TAG1 = 0xA0, /* 21264 */
	265	IPR_DTB_PTE0 = 0x21, /* 21264 */
	266	IPR_DTB_PTE1 = 0xA1, /* 21264 */
4c9649a9	267	IPR_DTB_ALTMODE = 0xA6,
f8cc8534 AJ	268	IPR_DTB_ALTMODE0 = 0x26, /* 21264 */
f8cc8534 AJ	269	#define IPR_DTB_ALTMODE_MASK 3
4c9649a9	270	IPR_DTB_IAP = 0xA2,
f8cc8534	271	IPR_DTB_IA = 0xA3, /* 21264 */
4c9649a9 JM	272	IPR_DTB_IS0 = 0x24,
4c9649a9 JM	273	IPR_DTB_IS1 = 0xA4,
f8cc8534 AJ	274	IPR_DTB_ASN0 = 0x25, /* 21264 */
	275	IPR_DTB_ASN1 = 0xA5, /* 21264 */
	276	#define IPR_DTB_ASN_SHIFT 56
	277	IPR_MM_STAT = 0x27, /* 21264 */
	278	IPR_M_CTL = 0x28, /* 21264 */
	279	#define IPR_M_CTL_SPE_SHIFT 1
	280	#define IPR_M_CTL_SPE_MASK 7
2642cdb3	281	IPR_DC_CTL = 0x29, /* 21264 */
f8cc8534	282	IPR_DC_STAT = 0x2A, /* 21264 */
4c9649a9 JM	283	/* Cbox IPRs */
	284	IPR_C_DATA = 0x2B,
	285	IPR_C_SHIFT = 0x2C,
	286
	287	IPR_ASN,
	288	IPR_ASTEN,
	289	IPR_ASTSR,
	290	IPR_DATFX,
	291	IPR_ESP,
	292	IPR_FEN,
	293	IPR_IPIR,
	294	IPR_IPL,
	295	IPR_KSP,
	296	IPR_MCES,
	297	IPR_PERFMON,
	298	IPR_PCBB,
	299	IPR_PRBR,
	300	IPR_PTBR,
	301	IPR_SCBB,
	302	IPR_SISR,
	303	IPR_SSP,
	304	IPR_SYSPTBR,
	305	IPR_TBCHK,
	306	IPR_TBIA,
	307	IPR_TBIAP,
	308	IPR_TBIS,
	309	IPR_TBISD,
	310	IPR_TBISI,
	311	IPR_USP,
	312	IPR_VIRBND,
	313	IPR_VPTB,
	314	IPR_WHAMI,
	315	IPR_ALT_MODE,
dad081ee	316	#endif
4c9649a9 JM	317	IPR_LAST,
	318	};
	319
	320	typedef struct CPUAlphaState CPUAlphaState;
	321
c227f099 AL	322	typedef struct pal_handler_t pal_handler_t;
c227f099 AL	323	struct pal_handler_t {
4c9649a9 JM	324	/* Reset */
	325	void (reset)(CPUAlphaState env);
	326	/* Uncorrectable hardware error */
	327	void (machine_check)(CPUAlphaState env);
	328	/* Arithmetic exception */
	329	void (arithmetic)(CPUAlphaState env);
	330	/* Interrupt / correctable hardware error */
	331	void (interrupt)(CPUAlphaState env);
	332	/* Data fault */
	333	void (dfault)(CPUAlphaState env);
	334	/* DTB miss pal */
	335	void (dtb_miss_pal)(CPUAlphaState env);
	336	/* DTB miss native */
	337	void (dtb_miss_native)(CPUAlphaState env);
	338	/* Unaligned access */
	339	void (unalign)(CPUAlphaState env);
	340	/* ITB miss */
	341	void (itb_miss)(CPUAlphaState env);
	342	/* Instruction stream access violation */
	343	void (itb_acv)(CPUAlphaState env);
	344	/* Reserved or privileged opcode */
	345	void (opcdec)(CPUAlphaState env);
	346	/* Floating point exception */
	347	void (fen)(CPUAlphaState env);
	348	/* Call pal instruction */
	349	void (call_pal)(CPUAlphaState env, uint32_t palcode);
	350	};
	351
6ebbf390 JM	352	#define NB_MMU_MODES 4
6ebbf390 JM	353
4c9649a9 JM	354	struct CPUAlphaState {
4c9649a9 JM	355	uint64_t ir[31];
8443effb	356	float64 fir[31];
4c9649a9 JM	357	uint64_t pc;
	358	uint64_t lock;
	359	uint32_t pcc[2];
	360	uint64_t ipr[IPR_LAST];
	361	uint64_t ps;
	362	uint64_t unique;
8443effb RH	363	float_status fp_status;
	364	/* The following fields make up the FPCR, but in FP_STATUS format. */
	365	uint8_t fpcr_exc_status;
	366	uint8_t fpcr_exc_mask;
	367	uint8_t fpcr_dyn_round;
	368	uint8_t fpcr_flush_to_zero;
	369	uint8_t fpcr_dnz;
	370	uint8_t fpcr_dnod;
	371	uint8_t fpcr_undz;
	372
	373	/* Used for HW_LD / HW_ST */
	374	uint8_t saved_mode;
	375	/* For RC and RS */
	376	uint8_t intr_flag;
4c9649a9	377
bf9525e9 JM	378	#if TARGET_LONG_BITS > HOST_LONG_BITS
	379	/* temporary fixed-point registers
	380	* used to emulate 64 bits target on 32 bits hosts
5fafdf24	381	*/
04acd307	382	target_ulong t0, t1;
bf9525e9	383	#endif
4c9649a9 JM	384
	385	/* Those resources are used only in Qemu core */
	386	CPU_COMMON
	387
4c9649a9	388	uint32_t hflags;
4c9649a9	389
4c9649a9	390	int error_code;
4c9649a9 JM	391
	392	uint32_t features;
	393	uint32_t amask;
	394	int implver;
c227f099	395	pal_handler_t *pal_handler;
4c9649a9 JM	396	};
4c9649a9 JM	397
9467d44c TS	398	#define cpu_init cpu_alpha_init
	399	#define cpu_exec cpu_alpha_exec
	400	#define cpu_gen_code cpu_alpha_gen_code
	401	#define cpu_signal_handler cpu_alpha_signal_handler
	402
6ebbf390 JM	403	/* MMU modes definitions */
	404	#define MMU_MODE0_SUFFIX _kernel
	405	#define MMU_MODE1_SUFFIX _executive
	406	#define MMU_MODE2_SUFFIX _supervisor
	407	#define MMU_MODE3_SUFFIX _user
	408	#define MMU_USER_IDX 3
	409	static inline int cpu_mmu_index (CPUState *env)
	410	{
	411	return (env->ps >> 3) & 3;
	412	}
	413
6e68e076 PB	414	#if defined(CONFIG_USER_ONLY)
	415	static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
	416	{
f8ed7070	417	if (newsp)
6e68e076 PB	418	env->ir[30] = newsp;
	419	/* FIXME: Zero syscall return value. */
	420	}
	421	#endif
	422
4c9649a9	423	#include "cpu-all.h"
622ed360	424	#include "exec-all.h"
4c9649a9 JM	425
	426	enum {
	427	FEATURE_ASN = 0x00000001,
	428	FEATURE_SPS = 0x00000002,
	429	FEATURE_VIRBND = 0x00000004,
	430	FEATURE_TBCHK = 0x00000008,
	431	};
	432
	433	enum {
	434	EXCP_RESET = 0x0000,
	435	EXCP_MCHK = 0x0020,
	436	EXCP_ARITH = 0x0060,
	437	EXCP_HW_INTERRUPT = 0x00E0,
	438	EXCP_DFAULT = 0x01E0,
	439	EXCP_DTB_MISS_PAL = 0x09E0,
	440	EXCP_ITB_MISS = 0x03E0,
	441	EXCP_ITB_ACV = 0x07E0,
	442	EXCP_DTB_MISS_NATIVE = 0x08E0,
	443	EXCP_UNALIGN = 0x11E0,
	444	EXCP_OPCDEC = 0x13E0,
	445	EXCP_FEN = 0x17E0,
	446	EXCP_CALL_PAL = 0x2000,
	447	EXCP_CALL_PALP = 0x3000,
	448	EXCP_CALL_PALE = 0x4000,
	449	/* Pseudo exception for console */
	450	EXCP_CONSOLE_DISPATCH = 0x4001,
	451	EXCP_CONSOLE_FIXUP = 0x4002,
	452	};
	453
	454	/* Arithmetic exception */
866be65d RH	455	#define EXC_M_IOV (1<<16) /* Integer Overflow */
	456	#define EXC_M_INE (1<<15) /* Inexact result */
	457	#define EXC_M_UNF (1<<14) /* Underflow */
	458	#define EXC_M_FOV (1<<13) /* Overflow */
	459	#define EXC_M_DZE (1<<12) /* Division by zero */
	460	#define EXC_M_INV (1<<11) /* Invalid operation */
	461	#define EXC_M_SWC (1<<10) /* Software completion */
4c9649a9	462
4c9649a9 JM	463	enum {
	464	IR_V0 = 0,
	465	IR_T0 = 1,
	466	IR_T1 = 2,
	467	IR_T2 = 3,
	468	IR_T3 = 4,
	469	IR_T4 = 5,
	470	IR_T5 = 6,
	471	IR_T6 = 7,
	472	IR_T7 = 8,
	473	IR_S0 = 9,
	474	IR_S1 = 10,
	475	IR_S2 = 11,
	476	IR_S3 = 12,
	477	IR_S4 = 13,
	478	IR_S5 = 14,
	479	IR_S6 = 15,
	480	#define IR_FP IR_S6
	481	IR_A0 = 16,
	482	IR_A1 = 17,
	483	IR_A2 = 18,
	484	IR_A3 = 19,
	485	IR_A4 = 20,
	486	IR_A5 = 21,
	487	IR_T8 = 22,
	488	IR_T9 = 23,
	489	IR_T10 = 24,
	490	IR_T11 = 25,
	491	IR_RA = 26,
	492	IR_T12 = 27,
	493	#define IR_PV IR_T12
	494	IR_AT = 28,
	495	IR_GP = 29,
	496	IR_SP = 30,
	497	IR_ZERO = 31,
	498	};
	499
aaed909a	500	CPUAlphaState * cpu_alpha_init (const char *cpu_model);
e96efcfc JM	501	int cpu_alpha_exec(CPUAlphaState *s);
	502	/* you can call this signal handler from your SIGBUS and SIGSEGV
	503	signal handlers to inform the virtual CPU of exceptions. non zero
	504	is returned if the signal was handled by the virtual CPU. */
5fafdf24	505	int cpu_alpha_signal_handler(int host_signum, void *pinfo,
e96efcfc	506	void *puc);
95870356 AJ	507	int cpu_alpha_handle_mmu_fault (CPUState *env, uint64_t address, int rw,
95870356 AJ	508	int mmu_idx, int is_softmmu);
0b5c1ce8	509	#define cpu_handle_mmu_fault cpu_alpha_handle_mmu_fault
95870356 AJ	510	void do_interrupt (CPUState *env);
95870356 AJ	511
ba0e276d RH	512	uint64_t cpu_alpha_load_fpcr (CPUState *env);
ba0e276d RH	513	void cpu_alpha_store_fpcr (CPUState *env, uint64_t val);
4c9649a9 JM	514	int cpu_alpha_mfpr (CPUState env, int iprn, uint64_t valp);
4c9649a9 JM	515	int cpu_alpha_mtpr (CPUState env, int iprn, uint64_t val, uint64_t oldvalp);
7c9bde45	516	#if !defined (CONFIG_USER_ONLY)
6049f4f8	517	void pal_init (CPUState *env);
7c9bde45	518	void call_pal (CPUState *env);
7c9bde45	519	#endif
4c9649a9	520
622ed360 AL	521	static inline void cpu_pc_from_tb(CPUState env, TranslationBlock tb)
	522	{
	523	env->pc = tb->pc;
	524	}
2e70f6ef	525
6b917547 AL	526	static inline void cpu_get_tb_cpu_state(CPUState env, target_ulong pc,
	527	target_ulong cs_base, int flags)
	528	{
	529	*pc = env->pc;
	530	*cs_base = 0;
	531	*flags = env->ps;
	532	}
	533
4c9649a9	534	#endif /* !defined (__CPU_ALPHA_H__) */