1 /*- 2 * Copyright (c) 2017 Mark Johnston <markj@FreeBSD.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in 11 * the documentation and/or other materials provided with the 12 * distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #ifndef _LINUXKPI_ASM_SMP_H_ 28 #define _LINUXKPI_ASM_SMP_H_ 29 30 #include <linux/jump_label.h> 31 #include <linux/preempt.h> 32 #include <asm/fpu/api.h> 33 34 #if defined(__i386__) || defined(__amd64__) 35 36 #define wbinvd_on_all_cpus() linux_wbinvd_on_all_cpus() 37 38 int linux_wbinvd_on_all_cpus(void); 39 40 #endif 41 42 #define get_cpu() ({ \ 43 critical_enter(); \ 44 PCPU_GET(cpuid); \ 45 }) 46 47 #define put_cpu() \ 48 critical_exit() 49 50 #endif /* _LINUXKPI_ASM_SMP_H_ */ 51