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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-08 10:05:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-08 10:05:57 -0700
commit4fd6c6bf83cb16321e9902b00e2af79054f4e0d6 (patch)
tree7153f611af0125336ac0ec22c5cb430fe520edcc /arch/arm/mach-tegra/include/mach/smp.h
parentc5f347579a661c9506e794315f0798b75ef71d35 (diff)
parent84b9414babdc303dde1d3f44cd2a54dffb67ab97 (diff)
Merge branch 'for-linus' of git://android.kernel.org/kernel/tegra
* 'for-linus' of git://android.kernel.org/kernel/tegra: [ARM] tegra: add MAINTAINERS entry [ARM] tegra: harmony: Add harmony board file [ARM] tegra: add pinmux support [ARM] tegra: add GPIO support [ARM] tegra: Add timer support [ARM] tegra: SMP support [ARM] tegra: Add clock support [ARM] tegra: Add IRQ support [ARM] tegra: initial tegra support
Diffstat (limited to 'arch/arm/mach-tegra/include/mach/smp.h')
-rw-r--r--arch/arm/mach-tegra/include/mach/smp.h30
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