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authorLen Brown <len.brown@intel.com>2010-08-15 01:06:31 -0400
committerLen Brown <len.brown@intel.com>2010-08-15 01:06:31 -0400
commit95ee46aa8698f2000647dfb362400fadbb5807cf (patch)
treee5a05c7297f997e191c73091934e42e3195c0e40 /arch/arm/mach-tegra/include/mach/smp.h
parentgcc-4.6: ACPI: fix unused but set variables in ACPI (diff)
parentMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 (diff)
downloadlinux-dev-95ee46aa8698f2000647dfb362400fadbb5807cf.tar.xz
linux-dev-95ee46aa8698f2000647dfb362400fadbb5807cf.zip
Merge branch 'linus' into release
Conflicts: drivers/acpi/debug.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to '')
-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 000000000000..8b42dab79a70
--- /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