ARM: 5831/1: ARM: U8500 core machine support

[pandora-kernel.git] / arch / arm / mach-ux500 / include / mach / smp.h

diff --git a/arch/arm/mach-ux500/include/mach/smp.h b/arch/arm/mach-ux500/include/mach/smp.h
new file mode 100644 (file)
index 0000000..b59f7bc
--- /dev/null
+++ b/arch/arm/mach-ux500/include/mach/smp.h
@@ -0,0 +1,32 @@
+/*
+ * This file is based ARM realview platform.
+ * Copyright (C) ARM Limited.
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#ifndef ASMARM_ARCH_SMP_H
+#define ASMARM_ARCH_SMP_H
+
+#include <asm/hardware/gic.h>
+
+/* This is required to wakeup the secondary core */
+extern void u8500_secondary_startup(void);
+
+#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);
+}
+#endif