diff options
| author | Colin Cross <ccross@android.com> | 2010-02-21 17:46:23 -0800 |
|---|---|---|
| committer | Erik Gilling <konkers@android.com> | 2010-08-05 14:57:01 -0700 |
| commit | 1cea7326b3fff97d17d33fb8f33163409a84431b (patch) | |
| tree | 6f8964633b9ca49a7a86921007d0e8a24654e5ad /arch/arm/mach-tegra/include/mach/smp.h | |
| parent | d861196163e30c07add471562b45dce38517c9b2 (diff) | |
[ARM] tegra: SMP support
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
Diffstat (limited to 'arch/arm/mach-tegra/include/mach/smp.h')
| -rw-r--r-- | arch/arm/mach-tegra/include/mach/smp.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/include/mach/smp.h b/arch/arm/mach-tegra/include/mach/smp.h new file mode 100644 index 00000000000..8b42dab79a7 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/smp.h @@ -0,0 +1,30 @@ +#ifndef ASMARM_ARCH_SMP_H +#define ASMARM_ARCH_SMP_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(const struct cpumask *mask) +{ + gic_raise_softirq(mask, 1); +} + +/* + * Do nothing on MPcore. + */ +static inline void smp_cross_call_done(cpumask_t callmap) +{ +} + +#endif |