diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-11-07 21:05:42 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-11-07 21:05:42 +0000 |
| commit | 862184fe013146a0d9654a5598c5a2691747541c (patch) | |
| tree | 0f3f0d46c79c7eae3d504c0e1be9ff923f1b2e36 /include/asm-arm/arch-realview/smp.h | |
| parent | fea543f47733cc843cd74d95065ed1d4a04b38ed (diff) | |
[ARM SMP] Add Realview MPcore SMP support
Add SMP support for the MPcore tile fitted to the Realview ARM
platform.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-realview/smp.h')
| -rw-r--r-- | include/asm-arm/arch-realview/smp.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-arm/arch-realview/smp.h b/include/asm-arm/arch-realview/smp.h new file mode 100644 index 00000000000..fc87783e8e8 --- /dev/null +++ b/include/asm-arm/arch-realview/smp.h @@ -0,0 +1,31 @@ +#ifndef ASMARM_ARCH_SMP_H +#define ASMARM_ARCH_SMP_H + +#include <linux/config.h> + +#include <asm/hardware/gic.h> + +#define hard_smp_processor_id() \ + ({ \ + unsigned int cpunum; \ + __asm__("mrc p15, 0, %0, c0, c0, 5" \ + : "=r" (cpunum)); \ + cpunum &= 0x0F; \ + }) + +/* + * We use IRQ1 as the IPI + */ +static inline void smp_cross_call(cpumask_t callmap) +{ + gic_raise_softirq(callmap, 1); +} + +/* + * Do nothing on MPcore. + */ +static inline void smp_cross_call_done(cpumask_t callmap) +{ +} + +#endif |