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-rw-r--r--include/asm-ppc/smp.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/include/asm-ppc/smp.h b/include/asm-ppc/smp.h
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+++ b/include/asm-ppc/smp.h
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+/* smp.h: PPC specific SMP stuff.
+ *
+ * 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>
+ */
+#ifdef __KERNEL__
+#ifndef _PPC_SMP_H
+#define _PPC_SMP_H
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/cpumask.h>
+#include <linux/threads.h>
+
+#ifdef CONFIG_SMP
+
+#ifndef __ASSEMBLY__
+
+struct cpuinfo_PPC {
+ unsigned long loops_per_jiffy;
+ unsigned long pvr;
+ unsigned long *pgd_cache;
+ unsigned long *pte_cache;
+ unsigned long pgtable_cache_sz;
+};
+
+extern struct cpuinfo_PPC cpu_data[];
+extern cpumask_t cpu_online_map;
+extern cpumask_t cpu_possible_map;
+extern unsigned long smp_proc_in_lock[];
+extern volatile unsigned long cpu_callin_map[];
+extern int smp_tb_synchronized;
+
+extern void smp_send_tlb_invalidate(int);
+extern void smp_send_xmon_break(int cpu);
+struct pt_regs;
+extern void smp_message_recv(int, struct pt_regs *);
+
+#define NO_PROC_ID 0xFF /* No processor magic marker */
+#define PROC_CHANGE_PENALTY 20
+
+#define smp_processor_id() (current_thread_info()->cpu)
+
+extern int __cpu_up(unsigned int cpu);
+
+extern int smp_hw_index[];
+#define hard_smp_processor_id() (smp_hw_index[smp_processor_id()])
+
+struct klock_info_struct {
+ unsigned long kernel_flag;
+ unsigned char akp;
+};
+
+extern struct klock_info_struct klock_info;
+#define KLOCK_HELD 0xffffffff
+#define KLOCK_CLEAR 0x0
+
+#endif /* __ASSEMBLY__ */
+
+#else /* !(CONFIG_SMP) */
+
+#endif /* !(CONFIG_SMP) */
+
+#endif /* !(_PPC_SMP_H) */
+#endif /* __KERNEL__ */
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