1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2021 Vladimir Kondratyev <wulf@FreeBSD.org> 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 * 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 ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef _LINUXKPI_ASM_PROCESSOR_H_ 29 #define _LINUXKPI_ASM_PROCESSOR_H_ 30 31 #include <sys/types.h> 32 #include <machine/cpufunc.h> 33 #include <machine/cpu.h> 34 35 #if defined(__i386__) || defined(__amd64__) 36 struct cpuinfo_x86 { 37 uint8_t x86; 38 uint8_t x86_model; 39 uint16_t x86_clflush_size; 40 uint16_t x86_max_cores; 41 }; 42 43 extern struct cpuinfo_x86 boot_cpu_data; 44 extern struct cpuinfo_x86 __cpu_data[]; 45 #define cpu_data(cpu) __cpu_data[cpu] 46 #endif 47 48 #define cpu_relax() cpu_spinwait() 49 50 #endif /* _LINUXKPI_ASM_PROCESSOR_H_ */ 51