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yaml
---
r: 355838
b: refs/heads/master
c: 4de3abb
h: refs/heads/master
v: v3
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Will Deacon committed Feb 2, 2013
1 parent c8ed063 commit a0939cd
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Showing 5 changed files with 65 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 2a0ba7388092b07732dc772c042273a3b40d90de
refs/heads/master: 4de3abb348d7a5bd6ddbfc26c34e0ee549874249
1 change: 1 addition & 0 deletions trunk/arch/arm/mach-virt/Kconfig
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Expand Up @@ -3,6 +3,7 @@ config ARCH_VIRT
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_GIC
select ARM_ARCH_TIMER
select ARM_PSCI
select HAVE_SMP
select CPU_V7
select SPARSE_IRQ
Expand Down
1 change: 1 addition & 0 deletions trunk/arch/arm/mach-virt/Makefile
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Expand Up @@ -3,3 +3,4 @@
#

obj-y := virt.o
obj-$(CONFIG_SMP) += platsmp.o
58 changes: 58 additions & 0 deletions trunk/arch/arm/mach-virt/platsmp.c
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/*
* 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,
};
4 changes: 4 additions & 0 deletions trunk/arch/arm/mach-virt/virt.c
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Expand Up @@ -21,6 +21,7 @@
#include <linux/irqchip.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/smp.h>

#include <asm/arch_timer.h>
#include <asm/mach/arch.h>
Expand All @@ -46,9 +47,12 @@ static struct sys_timer virt_timer = {
.init = virt_timer_init,
};

extern struct smp_operations virt_smp_ops;

DT_MACHINE_START(VIRT, "Dummy Virtual Machine")
.init_irq = irqchip_init,
.timer = &virt_timer,
.init_machine = virt_init,
.smp = smp_ops(virt_smp_ops),
.dt_compat = virt_dt_match,
MACHINE_END

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