Annotation of sys/arch/sgi/localbus/macectrl.S, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: macectrl.S,v 1.5 2004/09/27 18:52:01 pefo Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2004 Opsycon AB (www.opsycon.se / www.opsycon.com)
! 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: *
! 15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
! 16: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
! 17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 18: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
! 19: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 20: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 21: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 22: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 23: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 24: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 25: * SUCH DAMAGE.
! 26: *
! 27: */
! 28: #include <machine/param.h>
! 29: #include <machine/psl.h>
! 30: #include <machine/asm.h>
! 31: #include <machine/cpu.h>
! 32: #include <machine/regnum.h>
! 33:
! 34: #include "assym.h"
! 35:
! 36: .set mips3
! 37: .set noreorder # Noreorder is default style!
! 38:
! 39: /*
! 40: * Update the HW interrupt mask anding the argument with the
! 41: * interrupt mask for enabled interrupts. Only enabled interrupt
! 42: * sources can be unmasked.
! 43: */
! 44: .globl hw_setintrmask
! 45: LEAF(hw_setintrmask, 0)
! 46: PTR_L v1, hwmask_addr
! 47: lw v0, mace_intem
! 48: not a0, a0
! 49: beqz v1, 1f # addr not set, skip.
! 50: and v0, a0
! 51: jr ra
! 52: sd v0, 0(v1)
! 53: 1:
! 54: jr ra
! 55: nop
! 56: END(hw_setintrmask)
! 57:
! 58: .data
! 59: .globl hwmask_addr
! 60: hwmask_addr: PTR_VAL 0
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