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ARM: SoC: convert shmobile SMP to SMP operations

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Convert shmobile SMP platforms to use struct smp_operations to provide
their SMP and CPU hotplug operations.

Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Marc Zyngier
2011-09-08 13:15:22 +01:00
committed by Arnd Bergmann
parent 5ac21a943e
commit a62580e580
15 changed files with 165 additions and 146 deletions
Download Patch File Download Diff File Expand all files Collapse all files

96
arch/arm/mach-shmobile/platsmp.c
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@@ -11,100 +11,11 @@
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/smp.h>
#include <linux/io.h>
#include <linux/of.h>
#include <asm/hardware/gic.h>
#include <asm/mach-types.h>
#include <mach/common.h>
#include <mach/emev2.h>
#ifdef CONFIG_ARCH_SH73A0
#define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \
of_machine_is_compatible("renesas,sh73a0"))
#else
#define is_sh73a0() (0)
#endif
#define is_r8a7779() machine_is_marzen()
#ifdef CONFIG_ARCH_EMEV2
#define is_emev2() of_machine_is_compatible("renesas,emev2")
#else
#define is_emev2() (0)
#endif
static unsigned int __init shmobile_smp_get_core_count(void)
void __init shmobile_smp_init_cpus(unsigned int ncores)
{
if (is_sh73a0())
return sh73a0_get_core_count();
if (is_r8a7779())
return r8a7779_get_core_count();
if (is_emev2())
return emev2_get_core_count();
return 1;
}
static void __init shmobile_smp_prepare_cpus(void)
{
if (is_sh73a0())
sh73a0_smp_prepare_cpus();
if (is_r8a7779())
r8a7779_smp_prepare_cpus();
if (is_emev2())
emev2_smp_prepare_cpus();
}
int shmobile_platform_cpu_kill(unsigned int cpu)
{
if (is_r8a7779())
return r8a7779_platform_cpu_kill(cpu);
if (is_emev2())
return emev2_platform_cpu_kill(cpu);
return 1;
}
void __cpuinit platform_secondary_init(unsigned int cpu)
{
trace_hardirqs_off();
if (is_sh73a0())
sh73a0_secondary_init(cpu);
if (is_r8a7779())
r8a7779_secondary_init(cpu);
if (is_emev2())
emev2_secondary_init(cpu);
}
int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
{
if (is_sh73a0())
return sh73a0_boot_secondary(cpu);
if (is_r8a7779())
return r8a7779_boot_secondary(cpu);
if (is_emev2())
return emev2_boot_secondary(cpu);
return -ENOSYS;
}
void __init smp_init_cpus(void)
{
unsigned int ncores = shmobile_smp_get_core_count();
unsigned int i;
if (ncores > nr_cpu_ids) {
@@ -118,8 +29,3 @@ void __init smp_init_cpus(void)
set_smp_cross_call(gic_raise_softirq);
}
void __init platform_smp_prepare_cpus(unsigned int max_cpus)
{
shmobile_smp_prepare_cpus();
}