summaryrefslogtreecommitdiff
path: root/include/asm-arm/arch-realview/smp.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/arch-realview/smp.h')
-rw-r--r--include/asm-arm/arch-realview/smp.h31
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 000000000000..fc87783e8e8b
--- /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