1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * Copyright 2018 Joyent, Inc. 27 */ 28 29 #ifndef _ASM_HTABLE_H 30 #define _ASM_HTABLE_H 31 32 #include <sys/ccompile.h> 33 #include <sys/types.h> 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #if !defined(__lint) && defined(__GNUC__) 40 41 /* 42 * This set of atomic operations are designed primarily 43 * for some ia32 hat layer operations. 44 */ 45 46 extern __GNU_INLINE void 47 atomic_orb(uint8_t *addr, uint8_t value) 48 { 49 __asm__ __volatile__( 50 "lock; orb %%dl,%0" 51 : "=m" (*addr) 52 : "d" (value), "m" (*addr) 53 : "cc"); 54 } 55 56 extern __GNU_INLINE void 57 atomic_andb(uint8_t *addr, uint8_t value) 58 { 59 __asm__ __volatile__( 60 "lock; andb %%dl,%0" 61 : "=m" (*addr) 62 : "d" (value), "m" (*addr) 63 : "cc"); 64 } 65 66 extern __GNU_INLINE void 67 atomic_inc16(uint16_t *addr) 68 { 69 __asm__ __volatile__( 70 "lock; incw %0" 71 : "=m" (*addr) 72 : "m" (*addr) 73 : "cc"); 74 } 75 76 extern __GNU_INLINE void 77 atomic_dec16(uint16_t *addr) 78 { 79 __asm__ __volatile__( 80 "lock; decw %0" 81 : "=m" (*addr) 82 : "m" (*addr) 83 : "cc"); 84 } 85 86 #endif /* !__lint && __GNUC__ */ 87 88 #ifdef __cplusplus 89 } 90 #endif 91 92 #endif /* _ASM_HTABLE_H */ 93