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Annotation of sys/arch/mvme68k/include/intr.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: intr.h,v 1.15 2007/05/15 13:46:22 martin Exp $        */
        !             2: /*
        !             3:  * Copyright (C) 2000 Steve Murphree, Jr.
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
        !             9:  * 1. Redistributions of source code must retain the above copyright
        !            10:  *    notice, this list of conditions and the following disclaimer.
        !            11:  * 2. Redistributions in binary form must reproduce the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer in the
        !            13:  *    documentation and/or other materials provided with the distribution.
        !            14:  * 3. The name of the author may not be used to endorse or promote products
        !            15:  *    derived from this software without specific prior written permission.
        !            16:  *
        !            17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            18:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            19:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            20:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            21:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            22:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            23:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            24:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            25:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            26:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            27:  */
        !            28:
        !            29: #ifndef _MVME68K_INTR_H_
        !            30: #define _MVME68K_INTR_H_
        !            31:
        !            32: #include <machine/psl.h>
        !            33:
        !            34: #ifdef _KERNEL
        !            35:
        !            36: /*
        !            37:  * Simulated software interrupt register.
        !            38:  */
        !            39: extern volatile u_int8_t ssir;
        !            40:
        !            41: #define        SIR_NET         0x01
        !            42: #define        SIR_CLOCK       0x02
        !            43:
        !            44: #define        siron(mask)     \
        !            45:        __asm __volatile ( "orb %1,%0" : "=m" (ssir) : "ir" (mask))
        !            46: #define        siroff(mask)    \
        !            47:        __asm __volatile ( "andb %1,%0" : "=m" (ssir) : "ir" (~(mask)))
        !            48:
        !            49: #define        setsoftint(s)   siron(s)
        !            50: #define        setsoftnet()    siron(SIR_NET)
        !            51: #define        setsoftclock()  siron(SIR_CLOCK)
        !            52:
        !            53: u_int8_t allocate_sir(void (*proc)(void *), void *arg);
        !            54:
        !            55: /*
        !            56:  * Interrupt "levels".  These are a more abstract representation
        !            57:  * of interrupt levels, and do not have the same meaning as m68k
        !            58:  * CPU interrupt levels.  They serve two purposes:
        !            59:  *
        !            60:  *      - properly order ISRs in the list for that CPU ipl
        !            61:  *      - compute CPU PSL values for the spl*() calls.
        !            62:  */
        !            63: #define IPL_NONE       0
        !            64: #define IPL_SOFTNET    1
        !            65: #define IPL_SOFTCLOCK  1
        !            66: #define IPL_BIO                2
        !            67: #define IPL_NET                3
        !            68: #define IPL_TTY                3
        !            69: #define IPL_CLOCK      5
        !            70: #define IPL_STATCLOCK  5
        !            71: #define IPL_HIGH       7
        !            72:
        !            73: #define        splsoft()               _splraise(PSL_S | PSL_IPL1)
        !            74: #define        splsoftclock()          splsoft()
        !            75: #define        splsoftnet()            splsoft()
        !            76: #define        splbio()                _splraise(PSL_S | PSL_IPL2)
        !            77: #define        splnet()                _splraise(PSL_S | PSL_IPL3)
        !            78: #define        spltty()                _splraise(PSL_S | PSL_IPL3)
        !            79: #define        splvm()                 _splraise(PSL_S | PSL_IPL3)
        !            80: #define        splclock()              _splraise(PSL_S | PSL_IPL5)
        !            81: #define        splstatclock()          _splraise(PSL_S | PSL_IPL5)
        !            82: #define        splhigh()               _spl(PSL_S | PSL_IPL7)
        !            83: #define        splsched()              splhigh()
        !            84:
        !            85: /* watch out for side effects */
        !            86: #define        splx(s)                 ((s) & PSL_IPL ? _spl(s) : spl0())
        !            87:
        !            88: /* locore.s */
        !            89: int    spl0(void);
        !            90:
        !            91: #endif /* _KERNEL */
        !            92: #endif /* _MVME68K_INTR_H_ */