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atomic_and.S revision 1.6 
      1 /*	$NetBSD: atomic_and.S,v 1.6 2020/08/06 10:00:21 skrll 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 1.6 2020/08/06 10:00:21 skrll 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 	LLSCSYNC
     50 1:	INT_LL		t0, 0(a0)
     51 	 nop
     52 	and		t0, a1
     53 	INT_SC		t0, 0(a0)
     54 	beq		t0, zero, 1b
     55  	 nop
     56 	j		ra
     57 	 nop
     58 END(_atomic_and_32)
     59 ATOMIC_OP_ALIAS(atomic_and_32, _atomic_and_32)
     60 
     61 LEAF(_atomic_and_32_nv)
     62 	LLSCSYNC
     63 1:	INT_LL		v0, 0(a0)
     64 	 nop
     65 	and		v0, a1
     66 	move		t0, v0
     67 	INT_SC		t0, 0(a0)
     68 	beq		t0, zero, 1b
     69  	 nop
     70 	j		ra
     71 	 nop
     72 END(_atomic_and_32_nv)
     73 ATOMIC_OP_ALIAS(atomic_and_32_nv, _atomic_and_32_nv)
     74 
     75 #if !defined(__mips_o32)
     76 LEAF(_atomic_and_64)
     77 	LLSCSYNC
     78 1:	REG_LL		t0, 0(a0)
     79 	 nop
     80 	and		t0, a1
     81 	REG_SC		t0, 0(a0)
     82 	beq		t0, zero, 1b
     83  	 nop
     84 	j		ra
     85 	 nop
     86 END(_atomic_and_64)
     87 ATOMIC_OP_ALIAS(atomic_and_64, _atomic_and_64)
     88 
     89 LEAF(_atomic_and_64_nv)
     90 	LLSCSYNC
     91 1:	REG_LL		v0, 0(a0)
     92 	 nop
     93 	and		v0, a1
     94 	move		t0, v0
     95 	REG_SC		t0, 0(a0)
     96 	beq		t0, zero, 1b
     97  	 nop
     98 	j		ra
     99 	 nop
    100 END(_atomic_and_64_nv)
    101 ATOMIC_OP_ALIAS(atomic_and_64_nv, _atomic_and_64_nv)
    102 #endif
    103 
    104 #ifdef _LP64
    105 STRONG_ALIAS(_atomic_and_ulong,		_atomic_and_64)
    106 STRONG_ALIAS(_atomic_and_ulong_nv,	_atomic_and_64_nv)
    107 #else
    108 STRONG_ALIAS(_atomic_and_ulong,		_atomic_and_32)
    109 STRONG_ALIAS(_atomic_and_ulong_nv,	_atomic_and_32_nv)
    110 #endif
    111 STRONG_ALIAS(_atomic_and_uint,		_atomic_and_32)
    112 STRONG_ALIAS(_atomic_and_uint_nv,	_atomic_and_32_nv)
    113 
    114 ATOMIC_OP_ALIAS(atomic_and_uint,	_atomic_and_uint)
    115 ATOMIC_OP_ALIAS(atomic_and_uint_nv,	_atomic_and_uint_nv)
    116 ATOMIC_OP_ALIAS(atomic_and_ulong,	_atomic_and_ulong)
    117 ATOMIC_OP_ALIAS(atomic_and_ulong_nv,	_atomic_and_ulong_nv)
    118