From: magnus.damm@gmail.com (Magnus Damm)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/05] ARM: shmobile: Introduce shmobile_smp_cpu_disable()
Date: Thu, 08 Aug 2013 07:13:30 +0900 [thread overview]
Message-ID: <20130807221330.22251.32764.sendpatchset@w520> (raw)
In-Reply-To: <20130807221321.22251.22774.sendpatchset@w520>
From: Magnus Damm <damm@opensource.se>
Introduce the shared CPU Hotplug function shmobile_smp_cpu_disable()
for mach-shmobile. It is useful for the case when all CPUs may be
hotplugged, including CPU 0.
Signed-off-by: Magnus Damm <damm@opensource.se>
---
arch/arm/mach-shmobile/include/mach/common.h | 1 +
arch/arm/mach-shmobile/platsmp.c | 7 +++++++
2 files changed, 8 insertions(+)
--- 0009/arch/arm/mach-shmobile/include/mach/common.h
+++ work/arch/arm/mach-shmobile/include/mach/common.h 2013-07-29 22:19:44.000000000 +0900
@@ -17,6 +17,7 @@ extern unsigned long shmobile_smp_arg[];
extern unsigned long shmobile_smp_mpidr[];
extern void shmobile_smp_hook(unsigned int cpu, unsigned long fn,
unsigned long arg);
+extern int shmobile_smp_cpu_disable(unsigned int cpu);
extern void shmobile_boot_scu(void);
extern void shmobile_smp_scu_prepare_cpus(unsigned int max_cpus);
extern int shmobile_smp_scu_boot_secondary(unsigned int cpu,
--- 0009/arch/arm/mach-shmobile/platsmp.c
+++ work/arch/arm/mach-shmobile/platsmp.c 2013-07-29 22:19:29.000000000 +0900
@@ -40,3 +40,10 @@ void shmobile_smp_hook(unsigned int cpu,
shmobile_smp_arg[cpu] = arg;
flush_cache_all();
}
+
+#ifdef CONFIG_HOTPLUG_CPU
+int shmobile_smp_cpu_disable(unsigned int cpu)
+{
+ return 0; /* Hotplug of any CPU is supported */
+}
+#endif
next prev parent reply other threads:[~2013-08-07 22:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-07 22:13 [PATCH 00/05] ARM: shmobile: Yet another SMP series Magnus Damm
2013-08-07 22:13 ` Magnus Damm [this message]
2013-08-07 22:13 ` [PATCH 02/05] ARM: shmobile: Use shmobile_smp_cpu_disable() on sh73a0 Magnus Damm
2013-08-07 22:13 ` [PATCH 03/05] ARM: shmobile: Remove unused shmobile_smp_init_cpus() Magnus Damm
2013-08-07 22:13 ` [PATCH 04/05] ARM: shmobile: Expose shmobile_invalidate_start() Magnus Damm
2013-08-07 22:14 ` [PATCH 05/05] ARM: shmobile: Introduce shmobile_boot_size Magnus Damm
2013-08-21 8:59 ` [PATCH 00/05] ARM: shmobile: Yet another SMP series Simon Horman
2013-08-22 6:32 ` Simon Horman
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