ARM: consolidate SMP cross call implementation

Rather than having each platform class provide a mach/smp.h header for
smp_cross_call(), arrange for them to register the function with the
core ARM SMP code instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 4 insertions, 25 deletions

diff --git a/arch/arm/mach-ux500/include/mach/smp.h b/arch/arm/mach-ux500/include/mach/smp.h
deleted file mode 100644
index ca2b15b1b3b1..000000000000
--- a/arch/arm/mach-ux500/include/mach/smp.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * 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);
-
-/*
- * We use IRQ1 as the IPI
- */
-static inline void smp_cross_call(const struct cpumask *mask, int ipi)
-{
-        gic_raise_softirq(mask, ipi);
-}
-#endif
diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c
index 4fff4d408417..4e338466839e 100644
--- a/arch/arm/mach-ux500/platsmp.c
+++ b/arch/arm/mach-ux500/platsmp.c
@@ -18,6 +18,7 @@
 #include <linux/io.h>
 
 #include <asm/cacheflush.h>
+#include <asm/hardware/gic.h>
 #include <asm/smp_scu.h>
 #include <mach/hardware.h>
 #include <mach/setup.h>
@@ -94,7 +95,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
          */
         write_pen_release(cpu);
 
-        smp_cross_call(cpumask_of(cpu), 1);
+        gic_raise_softirq(cpumask_of(cpu), 1);
 
         timeout = jiffies + (1 * HZ);
         while (time_before(jiffies, timeout)) {
@@ -162,6 +163,8 @@ void __init smp_init_cpus(void)
 
         for (i = 0; i < ncores; i++)
                 set_cpu_possible(i, true);
+
+        set_smp_cross_call(gic_raise_softirq);
 }
 
 void __init platform_smp_prepare_cpus(unsigned int max_cpus)