diff options
Diffstat (limited to 'arch/arm/mach-virt/platsmp.c')
-rw-r--r-- | arch/arm/mach-virt/platsmp.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/mach-virt/platsmp.c b/arch/arm/mach-virt/platsmp.c new file mode 100644 index 000000000000..8badaabe70a1 --- /dev/null +++ b/arch/arm/mach-virt/platsmp.c @@ -0,0 +1,58 @@ +/* + * Dummy Virtual Machine - does what it says on the tin. + * + * Copyright (C) 2012 ARM Ltd + * Author: Will Deacon <will.deacon@arm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/of.h> + +#include <linux/irqchip/arm-gic.h> + +#include <asm/psci.h> +#include <asm/smp_plat.h> + +extern void secondary_startup(void); + +static void __init virt_smp_init_cpus(void) +{ +} + +static void __init virt_smp_prepare_cpus(unsigned int max_cpus) +{ +} + +static int __cpuinit virt_boot_secondary(unsigned int cpu, + struct task_struct *idle) +{ + if (psci_ops.cpu_on) + return psci_ops.cpu_on(cpu_logical_map(cpu), + __pa(secondary_startup)); + return -ENODEV; +} + +static void __cpuinit virt_secondary_init(unsigned int cpu) +{ + gic_secondary_init(0); +} + +struct smp_operations __initdata virt_smp_ops = { + .smp_init_cpus = virt_smp_init_cpus, + .smp_prepare_cpus = virt_smp_prepare_cpus, + .smp_secondary_init = virt_secondary_init, + .smp_boot_secondary = virt_boot_secondary, +}; |