1 files changed, 147 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
new file mode 100644
index 00000000000..1866cec4f96
--- /dev/null
+++ b/arch/powerpc/include/asm/smp.h
@@ -0,0 +1,147 @@
+/* 
+ * smp.h: PowerPC-specific SMP code.
+ *
+ * Original was a copy of sparc smp.h.  Now heavily modified
+ * for PPC.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1996-2001 Cort Dougan <cort@fsmlabs.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _ASM_POWERPC_SMP_H
+#define _ASM_POWERPC_SMP_H
+#ifdef __KERNEL__
+
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/kernel.h>
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_PPC64
+#include <asm/paca.h>
+#endif
+#include <asm/percpu.h>
+
+extern int boot_cpuid;
+
+extern void cpu_die(void);
+
+#ifdef CONFIG_SMP
+
+extern void smp_send_debugger_break(int cpu);
+extern void smp_message_recv(int);
+
+DECLARE_PER_CPU(unsigned int, pvr);
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern void fixup_irqs(cpumask_t map);
+int generic_cpu_disable(void);
+int generic_cpu_enable(unsigned int cpu);
+void generic_cpu_die(unsigned int cpu);
+void generic_mach_cpu_die(void);
+#endif
+
+#ifdef CONFIG_PPC64
+#define raw_smp_processor_id()	(local_paca->paca_index)
+#define hard_smp_processor_id() (get_paca()->hw_cpu_id)
+#else
+/* 32-bit */
+extern int smp_hw_index[];
+
+#define raw_smp_processor_id()	(current_thread_info()->cpu)
+#define hard_smp_processor_id() 	(smp_hw_index[smp_processor_id()])
+
+static inline int get_hard_smp_processor_id(int cpu)
+{
+	return smp_hw_index[cpu];
+}
+
+static inline void set_hard_smp_processor_id(int cpu, int phys)
+{
+	smp_hw_index[cpu] = phys;
+}
+#endif
+
+DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
+DECLARE_PER_CPU(cpumask_t, cpu_core_map);
+extern int cpu_to_core_id(int cpu);
+
+/* Since OpenPIC has only 4 IPIs, we use slightly different message numbers.
+ *
+ * Make sure this matches openpic_request_IPIs in open_pic.c, or what shows up
+ * in /proc/interrupts will be wrong!!! --Troy */
+#define PPC_MSG_CALL_FUNCTION   0
+#define PPC_MSG_RESCHEDULE      1
+#define PPC_MSG_CALL_FUNC_SINGLE	2
+#define PPC_MSG_DEBUGGER_BREAK  3
+
+void smp_init_iSeries(void);
+void smp_init_pSeries(void);
+void smp_init_cell(void);
+void smp_init_celleb(void);
+void smp_setup_cpu_maps(void);
+void smp_setup_cpu_sibling_map(void);
+
+extern int __cpu_disable(void);
+extern void __cpu_die(unsigned int cpu);
+
+#else
+/* for UP */
+#define hard_smp_processor_id()		get_hard_smp_processor_id(0)
+#define smp_setup_cpu_maps()
+
+#endif /* CONFIG_SMP */
+
+#ifdef CONFIG_PPC64
+static inline int get_hard_smp_processor_id(int cpu)
+{
+	return paca[cpu].hw_cpu_id;
+}
+
+static inline void set_hard_smp_processor_id(int cpu, int phys)
+{
+	paca[cpu].hw_cpu_id = phys;
+}
+
+extern void smp_release_cpus(void);
+
+#else
+/* 32-bit */
+#ifndef CONFIG_SMP
+extern int boot_cpuid_phys;
+static inline int get_hard_smp_processor_id(int cpu)
+{
+	return boot_cpuid_phys;
+}
+
+static inline void set_hard_smp_processor_id(int cpu, int phys)
+{
+	boot_cpuid_phys = phys;
+}
+#endif /* !CONFIG_SMP */
+#endif /* !CONFIG_PPC64 */
+
+extern int smt_enabled_at_boot;
+
+extern int smp_mpic_probe(void);
+extern void smp_mpic_setup_cpu(int cpu);
+extern void smp_generic_kick_cpu(int nr);
+
+extern void smp_generic_give_timebase(void);
+extern void smp_generic_take_timebase(void);
+
+extern struct smp_ops_t *smp_ops;
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_SMP_H) */