sys/arch/sh3/include/psl.h

   1 /*      $NetBSD: psl.h,v 1.9 2006/10/15 02:11:21 uwe Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1990 The Regents of the University of California.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * William Jolitz.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)psl.h       5.2 (Berkeley) 1/18/91
  35  */
  36
  37 #ifndef _SH3_PSL_H_
  38 #define _SH3_PSL_H_
  39
  40 /*
  41  * SuperH Processer Status Register.
  42  */
  43 #define PSL_TBIT        0x00000001      /* T bit */
  44 #define PSL_SBIT        0x00000002      /* S bit */
  45 #define PSL_IMASK       0x000000f0      /* Interrupt Mask bit */
  46 #define PSL_QBIT        0x00000100      /* Q bit */
  47 #define PSL_MBIT        0x00000200      /* M bit */
  48 #define PSL_BL          0x10000000      /* Exception Block bit */
  49 #define PSL_RB          0x20000000      /* Register Bank bit */
  50 #define PSL_MD          0x40000000      /* Processor Mode bit */
  51                                         /* 1 = kernel, 0 = user */
  52
  53 #define PSL_MBO         0x00000000      /* must be one bits */
  54 #define PSL_MBZ         0x8ffffc0c      /* must be zero bits */
  55
  56 #define PSL_USERSET     0
  57 #define PSL_USERSTATIC  (PSL_BL|PSL_RB|PSL_MD|PSL_IMASK|PSL_MBO|PSL_MBZ)
  58
  59 #define KERNELMODE(sr)          ((sr) & PSL_MD)
  60
  61 #ifdef _KERNEL
  62 #ifndef _LOCORE
  63
  64 /* SR.IMASK */
  65 int _cpu_intr_raise(int);
  66 int _cpu_intr_suspend(void);
  67 int _cpu_intr_resume(int);
  68
  69 /* SR.BL */
  70 int _cpu_exception_suspend(void);
  71 void _cpu_exception_resume(int);
  72
  73 #endif /* !_LOCORE */
  74 #endif /* _KERNEL */
  75
  76 #endif /* !_SH3_PSL_H_ */