[PATCH v2 0/2] [for arm-soc] mach-tango updates

[PATCH v2 0/2] [for arm-soc] mach-tango updates

[Marc Gonzalez]

Hello arm-soc maintainers,

Could you please merge the following patches?

o HOTPLUG support would be for 4.8
o Ideally, the MAINTAINERS update would be for the next 4.7 release candidate.

Marc Gonzalez (2):
  ARM: tango: add HOTPLUG_CPU support
  Update ARM/TANGO section

 MAINTAINERS                   |  3 +--
 arch/arm/mach-tango/platsmp.c | 17 +++++++++++++++++
 arch/arm/mach-tango/smc.h     |  4 +++-
 3 files changed, 21 insertions(+), 3 deletions(-)

Regards.

[PATCH v2 1/2] ARM: tango: add HOTPLUG_CPU support

[Marc Gonzalez]

cpu_die() and cpu_kill() are implemented in firmware.

Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
---
 arch/arm/mach-tango/platsmp.c | 17 +++++++++++++++++
 arch/arm/mach-tango/smc.h     |  4 +++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-tango/platsmp.c b/arch/arm/mach-tango/platsmp.c
index a21f55e000d2..ff495f6b6f40 100644
--- a/arch/arm/mach-tango/platsmp.c
+++ b/arch/arm/mach-tango/platsmp.c
@@ -9,8 +9,25 @@ static int tango_boot_secondary(unsigned int cpu, struct task_struct *idle)
 	return 0;
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+static int tango_cpu_kill(unsigned int cpu)
+{
+	return tango_aux_core_kill(cpu);
+}
+
+static void tango_cpu_die(unsigned int cpu)
+{
+	tango_aux_core_die(cpu);
+}
+#else
+#define tango_cpu_kill	NULL
+#define tango_cpu_die	NULL
+#endif
+
 static const struct smp_operations tango_smp_ops __initconst = {
 	.smp_boot_secondary	= tango_boot_secondary,
+	.cpu_kill		= tango_cpu_kill,
+	.cpu_die		= tango_cpu_die,
 };
 
 CPU_METHOD_OF_DECLARE(tango4_smp, "sigma,tango4-smp", &tango_smp_ops);
diff --git a/arch/arm/mach-tango/smc.h b/arch/arm/mach-tango/smc.h
index 7a4af35cc390..3d31f984f44c 100644
--- a/arch/arm/mach-tango/smc.h
+++ b/arch/arm/mach-tango/smc.h
@@ -2,4 +2,6 @@ extern int tango_smc(unsigned int val, unsigned int service);
 
 #define tango_set_l2_control(val)	tango_smc(val, 0x102)
 #define tango_start_aux_core(val)	tango_smc(val, 0x104)
-#define tango_set_aux_boot_addr(val)	tango_smc((unsigned int)val, 0x105)
+#define tango_set_aux_boot_addr(val)	tango_smc(val, 0x105)
+#define tango_aux_core_die(val)		tango_smc(val, 0x121)
+#define tango_aux_core_kill(val)	tango_smc(val, 0x122)
-- 
2.8.2

[PATCH v2 2/2] Update ARM/TANGO section

[Marc Gonzalez]

Use regex pattern to match tango-specific files.

Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
---
 MAINTAINERS | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index d174e34982b5..f3d920749bd6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1748,8 +1748,7 @@ ARM/TANGO ARCHITECTURE
 M:	Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
 L:	linux-arm-kernel at lists.infradead.org
 S:	Maintained
-F:	arch/arm/mach-tango/
-F:	arch/arm/boot/dts/tango*
+N:	tango
 
 ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>
-- 
2.8.2

[PATCH v2 1/2] ARM: tango: add HOTPLUG_CPU support

[Marc Gonzalez]

On 21/06/2016 11:31, Marc Gonzalez wrote:

> cpu_die() and cpu_kill() are implemented in firmware.
> 
> Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
> ---
>  arch/arm/mach-tango/platsmp.c | 17 +++++++++++++++++
>  arch/arm/mach-tango/smc.h     |  4 +++-
>  2 files changed, 20 insertions(+), 1 deletion(-)

There's a bug in my patch. I'll send an update.

Regards.