1e2f2594bSKuninori Morimoto // SPDX-License-Identifier: GPL-2.0 21c51ed4fSMagnus Damm /* 31c51ed4fSMagnus Damm * SMP support for R-Mobile / SH-Mobile 41c51ed4fSMagnus Damm * 51c51ed4fSMagnus Damm * Copyright (C) 2010 Magnus Damm 6c413521eSPaul Mundt * Copyright (C) 2011 Paul Mundt 71c51ed4fSMagnus Damm * 81c51ed4fSMagnus Damm * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved 91c51ed4fSMagnus Damm */ 101c51ed4fSMagnus Damm #include <linux/init.h> 11cc61591eSMagnus Damm #include <asm/cacheflush.h> 12cc61591eSMagnus Damm #include <asm/smp_plat.h> 13fd44aa5eSMagnus Damm #include "common.h" 141c51ed4fSMagnus Damm 15cc61591eSMagnus Damm extern unsigned long shmobile_smp_fn[]; 16cc61591eSMagnus Damm extern unsigned long shmobile_smp_arg[]; 17cc61591eSMagnus Damm extern unsigned long shmobile_smp_mpidr[]; 18cc61591eSMagnus Damm shmobile_smp_hook(unsigned int cpu,unsigned long fn,unsigned long arg)19cc61591eSMagnus Dammvoid shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg) 20cc61591eSMagnus Damm { 21cc61591eSMagnus Damm shmobile_smp_fn[cpu] = 0; 22cc61591eSMagnus Damm flush_cache_all(); 23cc61591eSMagnus Damm 24cc61591eSMagnus Damm shmobile_smp_mpidr[cpu] = cpu_logical_map(cpu); 25cc61591eSMagnus Damm shmobile_smp_fn[cpu] = fn; 26cc61591eSMagnus Damm shmobile_smp_arg[cpu] = arg; 27cc61591eSMagnus Damm flush_cache_all(); 28cc61591eSMagnus Damm } 295c4dfcd6SMagnus Damm 305c4dfcd6SMagnus Damm #ifdef CONFIG_HOTPLUG_CPU shmobile_smp_cpu_can_disable(unsigned int cpu)31787047eeSStephen Boydbool shmobile_smp_cpu_can_disable(unsigned int cpu) 325c4dfcd6SMagnus Damm { 33787047eeSStephen Boyd return true; /* Hotplug of any CPU is supported */ 345c4dfcd6SMagnus Damm } 355c4dfcd6SMagnus Damm #endif 36