root/usr/src/uts/sparc/sys/procfs_isa.h
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1996-1998 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#ifndef _SYS_PROCFS_ISA_H
#define _SYS_PROCFS_ISA_H

/*
 * Instruction Set Architecture specific component of <sys/procfs.h>
 * sparc v8/v9 version
 */

#include <sys/regset.h>

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * Possible values of pr_dmodel.
 * This isn't isa-specific, but it needs to be defined here for other reasons.
 */
#define PR_MODEL_UNKNOWN 0
#define PR_MODEL_ILP32  1       /* process data model is ILP32 */
#define PR_MODEL_LP64   2       /* process data model is LP64 */

/*
 * To determine whether application is running native.
 */
#if defined(_LP64)
#define PR_MODEL_NATIVE PR_MODEL_LP64
#elif defined(_ILP32)
#define PR_MODEL_NATIVE PR_MODEL_ILP32
#else
#error "No DATAMODEL_NATIVE specified"
#endif  /* _LP64 || _ILP32 */

/*
 * Holds one sparc instruction, for both ILP32 and LP64.
 */
typedef uint32_t        instr_t;

/*
 * General register access (sparc).
 * Don't confuse definitions here with definitions in <sys/regset.h>.
 * Registers are 32 bits for ILP32, 64 bits for LP64.
 */
#define NPRGREG 38
#if defined(_LP64)
typedef long            prgreg_t;
#else
typedef int             prgreg_t;
#endif
typedef prgreg_t        prgregset_t[NPRGREG];

#define R_G0    0
#define R_G1    1
#define R_G2    2
#define R_G3    3
#define R_G4    4
#define R_G5    5
#define R_G6    6
#define R_G7    7
#define R_O0    8
#define R_O1    9
#define R_O2    10
#define R_O3    11
#define R_O4    12
#define R_O5    13
#define R_O6    14
#define R_O7    15
#define R_L0    16
#define R_L1    17
#define R_L2    18
#define R_L3    19
#define R_L4    20
#define R_L5    21
#define R_L6    22
#define R_L7    23
#define R_I0    24
#define R_I1    25
#define R_I2    26
#define R_I3    27
#define R_I4    28
#define R_I5    29
#define R_I6    30
#define R_I7    31

#ifdef  __sparcv9
#define R_CCR   32      /* v9 condition code register */
#else
#define R_PSR   32      /* v7/v8 processor status register */
#endif

#define R_PC    33
#define R_nPC   34
#define R_Y     35

#ifdef  __sparcv9
#define R_ASI   36
#define R_FPRS  37
#else
#define R_WIM   36
#define R_TBR   37
#endif

/*
 * The following defines are for portability.
 */
#ifdef  __sparcv9
#define R_PS    R_CCR
#else
#define R_PS    R_PSR
#endif
#define R_SP    R_O6
#define R_FP    R_I6
#define R_R0    R_O0
#define R_R1    R_O1

#if defined(_SYSCALL32)
/*
 * kernel view of the _ILP32 register set
 */
typedef int32_t         prgreg32_t;
typedef prgreg32_t      prgregset32_t[NPRGREG];
#define R_PSR   32
#define R_WIM   36
#define R_TBR   37
#endif

/*
 * Floating-point register access (sparc FPU).
 * See <sys/regset.h> for details of interpretation.
 */
#ifdef  __sparcv9
typedef struct prfpregset {
        union {                         /* FPU floating point regs */
                uint32_t pr_regs[32];           /* 32 singles */
                double  pr_dregs[32];           /* 32 doubles */
                long double pr_qregs[16];       /* 16 quads */
        } pr_fr;
        uint64_t pr_filler;
        uint64_t pr_fsr;                /* FPU status register */
        uint8_t pr_qcnt;                /* # of entries in saved FQ */
        uint8_t pr_q_entrysize;         /* # of bytes per FQ entry */
        uint8_t pr_en;                  /* flag signifying fpu in use */
        char    pr_pad[13];             /* ensure sizeof(prfpregset)%16 == 0 */
        struct _fq pr_q[16];            /* contains the FQ array */
} prfpregset_t;
#else
typedef struct prfpregset {
        union {                         /* FPU floating point regs */
                uint32_t pr_regs[32];           /* 32 singles */
                double  pr_dregs[16];           /* 16 doubles */
        } pr_fr;
        uint32_t pr_filler;
        uint32_t pr_fsr;                /* FPU status register */
        uint8_t pr_qcnt;                /* # of entries in saved FQ */
        uint8_t pr_q_entrysize;         /* # of bytes per FQ entry */
        uint8_t pr_en;                  /* flag signifying fpu in use */
        struct _fq pr_q[32];            /* contains the FQ array */
} prfpregset_t;
#endif  /* __sparcv9 */

#if defined(_SYSCALL32)
/*
 * kernel view of the _ILP32 floating point register set
 */
typedef struct prfpregset32 {
        union {                         /* FPU floating point regs */
                uint32_t pr_regs[32];           /* 32 singles */
                double  pr_dregs[16];           /* 16 doubles */
        } pr_fr;
        uint32_t pr_filler;
        uint32_t pr_fsr;                /* FPU status register */
        uint8_t pr_qcnt;                /* # of entries in saved FQ */
        uint8_t pr_q_entrysize;         /* # of bytes per FQ entry */
        uint8_t pr_en;                  /* flag signifying fpu in use */
        struct fq32 pr_q[32];           /* contains the FQ array */
} prfpregset32_t;
#endif  /* _SYSCALL32 */

/*
 * Extra register access
 */

#define XR_G0           0
#define XR_G1           1
#define XR_G2           2
#define XR_G3           3
#define XR_G4           4
#define XR_G5           5
#define XR_G6           6
#define XR_G7           7
#define NPRXGREG        8

#define XR_O0           0
#define XR_O1           1
#define XR_O2           2
#define XR_O3           3
#define XR_O4           4
#define XR_O5           5
#define XR_O6           6
#define XR_O7           7
#define NPRXOREG        8

#define NPRXFILLER      8

#define XR_TYPE_V8P     1               /* interpret union as pr_v8p */

typedef struct prxregset {
        uint32_t        pr_type;                /* how to interpret union */
        uint32_t        pr_align;               /* alignment for the union */
        union {
            struct pr_v8p {
                union {                         /* extra FP registers */
                        uint32_t        pr_regs[32];
                        double          pr_dregs[16];
#ifndef __sparcv9               /* 32-bit alignment problem */
                        long double     pr_qregs[8];
#endif
                } pr_xfr;
                uint32_t        pr_xfsr;        /* upper 32bits, FP state reg */
                uint32_t        pr_fprs;        /* FP registers state */
                uint32_t        pr_xg[NPRXGREG]; /* upper 32bits, G registers */
                uint32_t        pr_xo[NPRXOREG]; /* upper 32bits, O registers */
                uint64_t        pr_tstate;      /* TSTATE register */
                uint32_t        pr_filler[NPRXFILLER];
            } pr_v8p;
        } pr_un;
} prxregset_t;

/*
 * Given a pointer to a prxregset structure, this macro yields the value
 * of the %gsr embedded in the structure.  It is an lvalue, so it can
 * be used to assign the value of the %gsr into the structure.
 * (Please don't ask why this is done this way.)
 */
#define PRXREG_GSR(xrp) (*(uint64_t *)((xrp)->pr_un.pr_v8p.pr_filler))

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_PROCFS_ISA_H */