Return to pci_eb64plus_intr.s CVS log

Up to [local] / sys / arch / alpha / pci

Annotation of sys/arch/alpha/pci/pci_eb64plus_intr.s, Revision 1.1

1.1     ! nbrk        1: /* $OpenBSD: pci_eb64plus_intr.s,v 1.2 2003/01/08 17:26:21 miod Exp $ */
        !             2: /* $NetBSD: pci_eb64plus_intr.s,v 1.2 1997/09/02 13:19:43 thorpej Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1996 Carnegie-Mellon University.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Author: Chris G. Demetriou
        !             9:  *
        !            10:  * Permission to use, copy, modify and distribute this software and
        !            11:  * its documentation is hereby granted, provided that both the copyright
        !            12:  * notice and this permission notice appear in all copies of the
        !            13:  * software, derivative works or modified versions, and any portions
        !            14:  * thereof, and that both notices appear in supporting documentation.
        !            15:  *
        !            16:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            17:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
        !            18:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            19:  *
        !            20:  * Carnegie Mellon requests users of this software to return to
        !            21:  *
        !            22:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
        !            23:  *  School of Computer Science
        !            24:  *  Carnegie Mellon University
        !            25:  *  Pittsburgh PA 15213-3890
        !            26:  *
        !            27:  * any improvements or extensions that they make and grant Carnegie the
        !            28:  * rights to redistribute these changes.
        !            29:  */
        !            30:
        !            31: /*
        !            32:  * This file hacked from pci_eb164_intr.s
        !            33:  *
        !            34:  * These functions were written by disassembling a Digital UNIX kernel's
        !            35:  * eb64p_intrdsabl and eb64p_intrenabl functions (because they had
        !            36:  * interesting names, and looked like the eb164 versions which were
        !            37:  * known to already work), and then playing with them to see how to call
        !            38:  * them correctly.
        !            39:  *
        !            40:  * It looks like the right thing to do is to call them with the interrupt
        !            41:  * request that you want to enable or disable (presumably in the range
        !            42:  * 0 -> 23, since there are 3 8-bit interrupt-enable bits in the
        !            43:  * interrupt mask PLD).
        !            44:  */
        !            45:
        !            46: #include <machine/asm.h>
        !            47:
        !            48:        .text
        !            49: LEAF(eb64plus_intr_enable,1)
        !            50:        mov     a0, a1
        !            51:        ldiq    a0, 0x34
        !            52:        call_pal PAL_cserve
        !            53:        RET
        !            54:        END(eb64plus_intr_enable)
        !            55:
        !            56:        .text
        !            57: LEAF(eb64plus_intr_disable,1)
        !            58:        mov     a0, a1
        !            59:        ldiq    a0, 0x35
        !            60:        call_pal PAL_cserve
        !            61:        RET
        !            62:        END(eb64plus_intr_disable)