summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-shmobile/platsmp.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-shmobile/platsmp.c')
-rw-r--r--arch/arm/mach-shmobile/platsmp.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c
new file mode 100644
index 000000000..7437c0151
--- /dev/null
+++ b/arch/arm/mach-shmobile/platsmp.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SMP support for R-Mobile / SH-Mobile
+ *
+ * Copyright (C) 2010 Magnus Damm
+ * Copyright (C) 2011 Paul Mundt
+ *
+ * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved
+ */
+#include <linux/init.h>
+#include <asm/cacheflush.h>
+#include <asm/smp_plat.h>
+#include "common.h"
+
+extern unsigned long shmobile_smp_fn[];
+extern unsigned long shmobile_smp_arg[];
+extern unsigned long shmobile_smp_mpidr[];
+
+void shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg)
+{
+ shmobile_smp_fn[cpu] = 0;
+ flush_cache_all();
+
+ shmobile_smp_mpidr[cpu] = cpu_logical_map(cpu);
+ shmobile_smp_fn[cpu] = fn;
+ shmobile_smp_arg[cpu] = arg;
+ flush_cache_all();
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+bool shmobile_smp_cpu_can_disable(unsigned int cpu)
+{
+ return true; /* Hotplug of any CPU is supported */
+}
+#endif