1 /* $NetBSD: rump_x86_cpu_counter.c,v 1.2 2020/06/15 09:09:24 msaitoh Exp $ */ 2 3 /* 4 * Copyright (c) 2010 Antti Kantee. All Rights Reserved. 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 ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * 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 /* 29 * __HAVE_CPU_COUNTER stubs. It would be nice to have this 30 * MI, but need MD for now because of inline-happy archs. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: rump_x86_cpu_counter.c,v 1.2 2020/06/15 09:09:24 msaitoh Exp $"); 35 36 #include <sys/param.h> 37 38 #include <x86/cpu_counter.h> 39 40 int 41 cpu_hascounter(void) 42 { 43 44 return 0; 45 } 46 47 uint64_t 48 cpu_frequency(struct cpu_info *ci) 49 { 50 51 return 0; 52 } 53 54 static uint64_t 55 nullfunc64(void) 56 { 57 return 0; 58 } 59 60 static uint32_t 61 nullfunc32(void) 62 { 63 return 0; 64 } 65 66 uint64_t (*cpu_counter)(void) = nullfunc64; 67 uint32_t (*cpu_counter32)(void) = nullfunc32; 68