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atomic_and.S revision 1.4 
      1 /*	$NetBSD: atomic_and.S,v 1.4 2012/03/14 16:50:34 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <machine/asm.h>
     30 #include "atomic_op_asm.h"
     31 
     32 RCSID("$NetBSD: atomic_and.S,v 1.4 2012/03/14 16:50:34 christos Exp $")
     33 
     34 	.text
     35 	.set	noreorder
     36 #ifdef _KERNEL_OPT
     37 #include "opt_cputype.h"
     38 #ifndef MIPS3_LOONGSON2F
     39 	.set	noat
     40 	.set	nomacro
     41 #endif
     42 #else /* _KERNEL_OPT */
     43 	.set	noat
     44 	.set	nomacro
     45 #endif /* _KERNEL_OPT */
     46 
     47 
     48 LEAF(_atomic_and_32)
     49 1:	INT_LL		t0, 0(a0)
     50 	 nop
     51 	and		t0, a1
     52 	INT_SC		t0, 0(a0)
     53 	beq		t0, zero, 1b
     54  	 nop
     55 	j		ra
     56 	 nop
     57 END(_atomic_and_32)
     58 ATOMIC_OP_ALIAS(atomic_and_32, _atomic_and_32)
     59 
     60 LEAF(_atomic_and_32_nv)
     61 1:	INT_LL		v0, 0(a0)
     62 	 nop
     63 	and		v0, a1
     64 	move		t0, v0
     65 	INT_SC		t0, 0(a0)
     66 	beq		t0, zero, 1b
     67  	 nop
     68 	j		ra
     69 	 nop
     70 END(_atomic_and_32_nv)
     71 ATOMIC_OP_ALIAS(atomic_and_32_nv, _atomic_and_32_nv)
     72 
     73 #if !defined(__mips_o32)
     74 LEAF(_atomic_and_64)
     75 1:	REG_LL		t0, 0(a0)
     76 	 nop
     77 	and		t0, a1
     78 	REG_SC		t0, 0(a0)
     79 	beq		t0, zero, 1b
     80  	 nop
     81 	j		ra
     82 	 nop
     83 END(_atomic_and_64)
     84 ATOMIC_OP_ALIAS(atomic_and_64, _atomic_and_64)
     85 
     86 LEAF(_atomic_and_64_nv)
     87 1:	REG_LL		v0, 0(a0)
     88 	 nop
     89 	and		v0, a1
     90 	move		t0, v0
     91 	REG_SC		t0, 0(a0)
     92 	beq		t0, zero, 1b
     93  	 nop
     94 	j		ra
     95 	 nop
     96 END(_atomic_and_64_nv)
     97 ATOMIC_OP_ALIAS(atomic_and_64_nv, _atomic_and_64_nv)
     98 #endif
     99 
    100 #ifdef _LP64
    101 STRONG_ALIAS(_atomic_and_ulong,		_atomic_and_64)
    102 STRONG_ALIAS(_atomic_and_ulong_nv,	_atomic_and_64_nv)
    103 #else
    104 STRONG_ALIAS(_atomic_and_ulong,		_atomic_and_32)
    105 STRONG_ALIAS(_atomic_and_ulong_nv,	_atomic_and_32_nv)
    106 #endif
    107 STRONG_ALIAS(_atomic_and_uint,		_atomic_and_32)
    108 STRONG_ALIAS(_atomic_and_uint_nv,	_atomic_and_32_nv)
    109 
    110 ATOMIC_OP_ALIAS(atomic_and_uint,	_atomic_and_uint)
    111 ATOMIC_OP_ALIAS(atomic_and_uint_nv,	_atomic_and_uint_nv)
    112 ATOMIC_OP_ALIAS(atomic_and_ulong,	_atomic_and_ulong)
    113 ATOMIC_OP_ALIAS(atomic_and_ulong_nv,	_atomic_and_ulong_nv)
    114