FreeBSD/Linux Kernel Cross Reference
sys/sparc64/include/cpu.h

     /*-
      * Copyright (c) 1990 The Regents of the University of California.
      * All rights reserved.
      *
      * This code is derived from software contributed to Berkeley by
      * William Jolitz.
      *
      * 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.
     * 4. 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.
     *
     *      from: @(#)cpu.h 5.4 (Berkeley) 5/9/91
     *      from: FreeBSD: src/sys/i386/include/cpu.h,v 1.62 2001/06/29
     * $FreeBSD: releng/6.4/sys/sparc64/include/cpu.h 133084 2004-08-03 18:44:27Z mux $
     */
    
    #ifndef _MACHINE_CPU_H_
    #define _MACHINE_CPU_H_
    
    #include <machine/frame.h>
    #include <machine/tstate.h>
    
    #define CLKF_USERMODE(cfp)      TRAPF_USERMODE(&(cfp)->cf_tf)
    #define CLKF_PC(cfp)            TRAPF_PC(&(cfp)->cf_tf)
    
    #define TRAPF_PC(tfp)           ((tfp)->tf_tpc)
    #define TRAPF_USERMODE(tfp)     (((tfp)->tf_tstate & TSTATE_PRIV) == 0)
    
    #define cpu_getstack(td)        ((td)->td_frame->tf_sp)
    #define cpu_setstack(td, sp)    ((td)->td_frame->tf_sp = (sp))
    #define cpu_spinwait()          /* nothing */
    
    /*
     * CTL_MACHDEP definitions.
     */
    #define CPU_CONSDEV             1       /* dev_t: console terminal device */
    #define CPU_ADJKERNTZ           2       /* int: timezone offset (seconds) */
    #define CPU_DISRTCSET           3       /* int: disable resettodr() call */
    #define CPU_BOOTINFO            4       /* struct: bootinfo */
    #define CPU_WALLCLOCK           5       /* int: indicates wall CMOS clock */
    #define CPU_MAXID               6       /* number of valid machdep ids */
    
    #define CTL_MACHDEP_NAMES { \
            { 0, 0 }, \
            { "console_device", CTLTYPE_STRUCT }, \
            { "adjkerntz", CTLTYPE_INT }, \
            { "disable_rtc_set", CTLTYPE_INT }, \
            { "bootinfo", CTLTYPE_STRUCT }, \
            { "wall_cmos_clock", CTLTYPE_INT }, \
    }
    
    #ifdef _KERNEL
    
    extern  char btext[];
    extern  char etext[];
    
    void    cpu_halt(void);
    void    cpu_reset(void);
    void    fork_trampoline(void);
    void    swi_vm(void *v);
    
    static __inline u_int64_t
    get_cyclecount(void)
    {
    
            return (rd(tick));
    }
    
    #endif
    
    #endif /* !_MACHINE_CPU_H_ */

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