FreeBSD/Linux Kernel Cross Reference
sys/mips/include/proc.h

     /*      $OpenBSD: proc.h,v 1.2 1998/09/15 10:50:12 pefo Exp $   */
     
     /*-
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * Copyright (c) 1992, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * This code is derived from software contributed to Berkeley by
     * Ralph Campbell.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)proc.h      8.1 (Berkeley) 6/10/93
     *      JNPR: proc.h,v 1.7.2.1 2007/09/10 06:25:24 girish
     * $FreeBSD$
     */
    
    #ifndef _MACHINE_PROC_H_
    #define _MACHINE_PROC_H_
    
    #ifdef  CPU_CNMIPS
    #include <machine/octeon_cop2.h>
    #endif
    
    /*
     * Machine-dependent part of the proc structure.
     */
    struct mdthread {
            int             md_flags;       /* machine-dependent flags */
    #if defined(__mips_n64) || defined(__mips_n32) /*  PHYSADDR_64_BIT */
            uint64_t        md_upte[KSTACK_PAGES];  /* ptes for mapping u pcb */
    #else
            int             md_upte[KSTACK_PAGES];
    #endif
            uintptr_t       md_ss_addr;     /* single step address for ptrace */
            int             md_ss_instr;    /* single step instruction for ptrace */
            register_t      md_saved_intr;
            u_int           md_spinlock_count;
    /* The following is CPU dependent, but kept in for compatibility */
            int             md_pc_ctrl;     /* performance counter control */
            int             md_pc_count;    /* performance counter */
            int             md_pc_spill;    /* performance counter spill */
            void            *md_tls;
            size_t          md_tls_tcb_offset;      /* TCB offset */
    #ifdef  CPU_CNMIPS
            struct octeon_cop2_state        *md_cop2; /* kernel context */
            struct octeon_cop2_state        *md_ucop2; /* userland context */
    #define COP2_OWNER_USERLAND     0x0000          /* Userland owns COP2 */
    #define COP2_OWNER_KERNEL       0x0001          /* Kernel owns COP2 */
            int             md_cop2owner;
    #endif
    };
    
    /* md_flags */
    #define MDTD_FPUSED     0x0001          /* Process used the FPU */
    #define MDTD_COP2USED   0x0002          /* Process used the COP2 */
    
    struct mdproc {
            /* Avoid empty structs because they are undefined behavior. */
            long    md_spare;
    };
    
    struct syscall_args {
            u_int code;
            struct sysent *callp;
            register_t args[8];
            int narg;
            struct trapframe *trapframe;
    };
    
    #ifdef __mips_n64
    #define KINFO_PROC_SIZE 1088
    #define KINFO_PROC32_SIZE 816
    #else
    #define KINFO_PROC_SIZE 816
    #endif
   
   #ifdef _KERNEL
   #include <machine/pcb.h>
   
   /* Get the current kernel thread stack usage. */
   #define GET_STACK_USAGE(total, used) do {                               \
           struct thread *td = curthread;                                  \
           (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \
           (used) = td->td_kstack + (total) - (vm_offset_t)&td;            \
   } while (0)
   
   #endif  /* _KERNEL */
   #endif  /* !_MACHINE_PROC_H_ */

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