1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/smp.h> 3 #include <linux/export.h> 4 5 static void __wbinvd(void *dummy) 6 { 7 wbinvd(); 8 } 9 10 void wbinvd_on_cpu(int cpu) 11 { 12 smp_call_function_single(cpu, __wbinvd, NULL, 1); 13 } 14 EXPORT_SYMBOL(wbinvd_on_cpu); 15 16 int wbinvd_on_all_cpus(void) 17 { 18 on_each_cpu(__wbinvd, NULL, 1); 19 return 0; 20 } 21 EXPORT_SYMBOL(wbinvd_on_all_cpus); 22