| Will Deacon | 4de3abb | 2012-12-13 13:10:40 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Dummy Virtual Machine - does what it says on the tin. |
| 3 | * |
| 4 | * Copyright (C) 2012 ARM Ltd |
| 5 | * Author: Will Deacon <will.deacon@arm.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/smp.h> |
| 22 | #include <linux/of.h> |
| 23 | |
| 24 | #include <linux/irqchip/arm-gic.h> |
| 25 | |
| 26 | #include <asm/psci.h> |
| 27 | #include <asm/smp_plat.h> |
| 28 | |
| 29 | extern void secondary_startup(void); |
| 30 | |
| 31 | static void __init virt_smp_init_cpus(void) |
| 32 | { |
| 33 | } |
| 34 | |
| 35 | static void __init virt_smp_prepare_cpus(unsigned int max_cpus) |
| 36 | { |
| 37 | } |
| 38 | |
| 39 | static int __cpuinit virt_boot_secondary(unsigned int cpu, |
| 40 | struct task_struct *idle) |
| 41 | { |
| 42 | if (psci_ops.cpu_on) |
| 43 | return psci_ops.cpu_on(cpu_logical_map(cpu), |
| 44 | __pa(secondary_startup)); |
| 45 | return -ENODEV; |
| 46 | } |
| 47 | |
| 48 | static void __cpuinit virt_secondary_init(unsigned int cpu) |
| 49 | { |
| 50 | gic_secondary_init(0); |
| 51 | } |
| 52 | |
| 53 | struct smp_operations __initdata virt_smp_ops = { |
| 54 | .smp_init_cpus = virt_smp_init_cpus, |
| 55 | .smp_prepare_cpus = virt_smp_prepare_cpus, |
| 56 | .smp_secondary_init = virt_secondary_init, |
| 57 | .smp_boot_secondary = virt_boot_secondary, |
| 58 | }; |