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-rw-r--r--include/asm-arm/smp.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/include/asm-arm/smp.h b/include/asm-arm/smp.h
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+/*
+ * linux/include/asm-arm/smp.h
+ *
+ * Copyright (C) 2004-2005 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_ARM_SMP_H
+#define __ASM_ARM_SMP_H
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/thread_info.h>
+
+#include <asm/arch/smp.h>
+
+#ifndef CONFIG_SMP
+# error "<asm-arm/smp.h> included in non-SMP build"
+#endif
+
+#define smp_processor_id() (current_thread_info()->cpu)
+
+extern cpumask_t cpu_present_mask;
+#define cpu_possible_map cpu_present_mask
+
+/*
+ * at the moment, there's not a big penalty for changing CPUs
+ * (the >big< penalty is running SMP in the first place)
+ */
+#define PROC_CHANGE_PENALTY 15
+
+struct seq_file;
+
+/*
+ * generate IPI list text
+ */
+extern void show_ipi_list(struct seq_file *p);
+
+/*
+ * Move global data into per-processor storage.
+ */
+extern void smp_store_cpu_info(unsigned int cpuid);
+
+/*
+ * Raise an IPI cross call on CPUs in callmap.
+ */
+extern void smp_cross_call(cpumask_t callmap);
+
+/*
+ * Boot a secondary CPU, and assign it the specified idle task.
+ * This also gives us the initial stack to use for this CPU.
+ */
+extern int boot_secondary(unsigned int cpu, struct task_struct *);
+
+#endif /* ifndef __ASM_ARM_SMP_H */