From 1c51ed4fb9f11fa1e0873aa2d5b28f42a85ac299 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 14 Dec 2010 16:56:55 +0900 Subject: ARM: mach-shmobile: SMP base support Add SMP base support for R-Mobile / SH-Mobile processors. This patch contains all base code to support CONFIG_SMP regardless of ARCH_SHMOBILE processor type. Both local timer and CPU hotplug are supported, but no processor specific code is included. At this point only the default behavior is in place, so a single core will always be used even though CONFIG_SMP is enabled on multicore systems. The SMP Kconfig entry for arch/arm/Kconfig is excluded from this patch to simplify merging. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/arm/mach-shmobile/include/mach/common.h | 1 + arch/arm/mach-shmobile/include/mach/entry-macro-intc.S | 6 ++++++ arch/arm/mach-shmobile/include/mach/smp.h | 16 ++++++++++++++++ 3 files changed, 23 insertions(+) create mode 100644 arch/arm/mach-shmobile/include/mach/smp.h (limited to 'arch/arm/mach-shmobile/include') diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h index 15932fd2435e..32822f7556ea 100644 --- a/arch/arm/mach-shmobile/include/mach/common.h +++ b/arch/arm/mach-shmobile/include/mach/common.h @@ -3,6 +3,7 @@ extern struct sys_timer shmobile_timer; extern void shmobile_setup_console(void); +extern void shmobile_secondary_vector(void); struct clk; extern int clk_init(void); diff --git a/arch/arm/mach-shmobile/include/mach/entry-macro-intc.S b/arch/arm/mach-shmobile/include/mach/entry-macro-intc.S index a285d13c7416..d06d4ba3251e 100644 --- a/arch/arm/mach-shmobile/include/mach/entry-macro-intc.S +++ b/arch/arm/mach-shmobile/include/mach/entry-macro-intc.S @@ -17,6 +17,12 @@ #include #include + .macro test_for_ipi, irqnr, irqstat, base, tmp + .endm + + .macro test_for_ltirq, irqnr, irqstat, base, tmp + .endm + .macro disable_fiq .endm diff --git a/arch/arm/mach-shmobile/include/mach/smp.h b/arch/arm/mach-shmobile/include/mach/smp.h new file mode 100644 index 000000000000..f4a35ff82c67 --- /dev/null +++ b/arch/arm/mach-shmobile/include/mach/smp.h @@ -0,0 +1,16 @@ +#ifndef __MACH_SMP_H +#define __MACH_SMP_H + +#include +#include + +/* + * We use IRQ1 as the IPI + */ +static inline void smp_cross_call(const struct cpumask *mask) +{ +#if defined(CONFIG_ARM_GIC) + gic_raise_softirq(mask, 1); +#endif +} +#endif -- cgit v1.2.1