FreeBSD/Linux Kernel Cross Reference
sys/pexpert/i386/pe_spl.c

     /*
      * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
      *
      * @APPLE_LICENSE_HEADER_START@
      * 
      * The contents of this file constitute Original Code as defined in and
      * are subject to the Apple Public Source License Version 1.1 (the
      * "License").  You may not use this file except in compliance with the
      * License.  Please obtain a copy of the License at
     * http://www.apple.com/publicsource and read it before using this file.
     * 
     * This Original Code and all software distributed under the License are
     * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
     * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
     * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
     * License for the specific language governing rights and limitations
     * under the License.
     * 
     * @APPLE_LICENSE_HEADER_END@
     */
    #include <pexpert/protos.h>
    
    
    typedef unsigned long   spl_t;
    
    spl_t   PE_set_spl(spl_t x);
    
    spl_t splhi() { return PE_set_spl(8); }
    spl_t splhigh() { return PE_set_spl(8); }
    spl_t splclock() { return PE_set_spl(8); }
    spl_t splvm() { return PE_set_spl(8); }
    spl_t splsched() { return       PE_set_spl(8); }
    spl_t splimp()  { return PE_set_spl(6); }
    void    splx(spl_t x) { (void) PE_set_spl(x); }
    spl_t splnet() { return PE_set_spl(6); }
    void  spllo() { (void) PE_set_spl(0); }
    spl_t spl1() { return PE_set_spl(1); }
    spl_t spl2() { return PE_set_spl(2); }
    spl_t spl3() { return PE_set_spl(3); }
    spl_t spl4() { return PE_set_spl(4); }
    spl_t spl5() { return PE_set_spl(5); }
    spl_t spl6() { return PE_set_spl(6); }
    spl_t splbio() { return PE_set_spl(5); }
    spl_t spltty() { return PE_set_spl(6); }
    
    spl_t sploff() { return PE_set_spl(8); }
    void splon(spl_t x) { (void) PE_set_spl(x); }
    
    spl_t PE_set_spl(spl_t lvl)
    {
      spl_t old_level;
      int   mycpu;
    
      
      __asm__ volatile("cli");
    
      mycpu = cpu_number();
      old_level = cpu_data[mycpu].spl_level;
      cpu_data[mycpu].spl_level = lvl ;
      
      if (!lvl) __asm__ volatile("sti");
      
      return old_level;
    }
    
    void PE_set_spl_no_interrupt(spl_t lvl)
    {
      int mycpu;
    
      __asm__ volatile("cli");
    
      mycpu = cpu_number();
      cpu_data[mycpu].spl_level = lvl ;
    
      return;
    }
      

Cache object: b92c885497b284a4b99a66156f36e27f