11c51ed4fSMagnus Damm /* 21c51ed4fSMagnus Damm * SMP support for R-Mobile / SH-Mobile 31c51ed4fSMagnus Damm * 41c51ed4fSMagnus Damm * Copyright (C) 2010 Magnus Damm 5c413521eSPaul Mundt * Copyright (C) 2011 Paul Mundt 61c51ed4fSMagnus Damm * 71c51ed4fSMagnus Damm * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved 81c51ed4fSMagnus Damm * 91c51ed4fSMagnus Damm * This program is free software; you can redistribute it and/or modify 101c51ed4fSMagnus Damm * it under the terms of the GNU General Public License version 2 as 111c51ed4fSMagnus Damm * published by the Free Software Foundation. 121c51ed4fSMagnus Damm */ 131c51ed4fSMagnus Damm #include <linux/init.h> 14cc61591eSMagnus Damm #include <asm/cacheflush.h> 15cc61591eSMagnus Damm #include <asm/smp_plat.h> 16fd44aa5eSMagnus Damm #include "common.h" 171c51ed4fSMagnus Damm 18cc61591eSMagnus Damm extern unsigned long shmobile_smp_fn[]; 19cc61591eSMagnus Damm extern unsigned long shmobile_smp_arg[]; 20cc61591eSMagnus Damm extern unsigned long shmobile_smp_mpidr[]; 21cc61591eSMagnus Damm 22cc61591eSMagnus Damm void shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg) 23cc61591eSMagnus Damm { 24cc61591eSMagnus Damm shmobile_smp_fn[cpu] = 0; 25cc61591eSMagnus Damm flush_cache_all(); 26cc61591eSMagnus Damm 27cc61591eSMagnus Damm shmobile_smp_mpidr[cpu] = cpu_logical_map(cpu); 28cc61591eSMagnus Damm shmobile_smp_fn[cpu] = fn; 29cc61591eSMagnus Damm shmobile_smp_arg[cpu] = arg; 30cc61591eSMagnus Damm flush_cache_all(); 31cc61591eSMagnus Damm } 325c4dfcd6SMagnus Damm 335c4dfcd6SMagnus Damm #ifdef CONFIG_HOTPLUG_CPU 34787047eeSStephen Boyd bool shmobile_smp_cpu_can_disable(unsigned int cpu) 355c4dfcd6SMagnus Damm { 36787047eeSStephen Boyd return true; /* Hotplug of any CPU is supported */ 375c4dfcd6SMagnus Damm } 385c4dfcd6SMagnus Damm #endif 39