1 /*- 2 * Copyright (c) 2022 The FreeBSD Foundation 3 * 4 * This software was developed by Andrew Turner under sponsorship from 5 * the FreeBSD Foundation. 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 31 #include <sys/param.h> 32 33 #include <machine/atomic.h> 34 #include <machine/ifunc.h> 35 #define _MD_WANT_SWAPWORD 36 #include <machine/md_var.h> 37 38 int casueword32_llsc(volatile uint32_t *, uint32_t, uint32_t *, uint32_t); 39 int casueword32_lse(volatile uint32_t *, uint32_t, uint32_t *, uint32_t); 40 41 int casueword_llsc(volatile u_long *, u_long, u_long *, u_long); 42 int casueword_lse(volatile u_long *, u_long, u_long *, u_long); 43 44 int swapueword8_llsc(volatile uint8_t *, uint8_t *); 45 int swapueword8_lse(volatile uint8_t *, uint8_t *); 46 47 int swapueword32_llsc(volatile uint32_t *, uint32_t *); 48 int swapueword32_lse(volatile uint32_t *, uint32_t *); 49 50 DEFINE_IFUNC(, int, casueword32, (volatile uint32_t *base, uint32_t oldval, 51 uint32_t *oldvalp, uint32_t newval)) 52 { 53 if (lse_supported) 54 return (casueword32_lse); 55 56 return (casueword32_llsc); 57 } 58 59 DEFINE_IFUNC(, int, casueword, (volatile u_long *base, u_long oldval, 60 u_long *oldvalp, u_long newval)) 61 { 62 if (lse_supported) 63 return (casueword_lse); 64 65 return (casueword_llsc); 66 } 67 68 DEFINE_IFUNC(, int, swapueword8, (volatile uint8_t *base, uint8_t *val)) 69 { 70 if (lse_supported) 71 return (swapueword8_lse); 72 73 return (swapueword8_llsc); 74 } 75 76 DEFINE_IFUNC(, int, swapueword32, (volatile uint32_t *base, uint32_t *val)) 77 { 78 if (lse_supported) 79 return (swapueword32_lse); 80 81 return (swapueword32_llsc); 82 } 83