patch-2.4.19 linux-2.4.19/include/asm-ppc64/smp.h

• Lines: 73
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-ppc64/smp.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/include/asm-ppc64/smp.h linux-2.4.19/include/asm-ppc64/smp.h
@@ -0,0 +1,72 @@
+/* 
+ * smp.h: PPC64 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.
+ */
+
+#ifdef __KERNEL__
+#ifndef _PPC64_SMP_H
+#define _PPC64_SMP_H
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+
+#ifdef CONFIG_SMP
+
+#ifndef __ASSEMBLY__
+
+#include <asm/paca.h>
+
+struct current_set_struct {
+	struct task_struct *task;
+	unsigned long *sp_real;
+};
+
+extern unsigned long cpu_online_map;
+
+extern void smp_message_pass(int target, int msg, unsigned long data, int wait);
+extern void smp_store_cpu_info(int id);
+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
+
+/* 1 to 1 mapping on PPC -- Cort */
+#define cpu_logical_map(cpu) (cpu)
+#define cpu_number_map(x) (x)
+extern volatile unsigned long cpu_callin_map[NR_CPUS];
+
+#define smp_processor_id() (get_paca()->xPacaIndex)
+#define hard_smp_processor_id() (get_paca()->xHwProcNum)
+#define get_hard_smp_processor_id(CPU) (paca[(CPU)].xHwProcNum)
+
+
+
+/* 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_INVALIDATE_TLB  2
+#define PPC_MSG_XMON_BREAK      3
+
+void smp_init_iSeries(void);
+void smp_init_pSeries(void);
+
+#endif /* __ASSEMBLY__ */
+#endif /* !(CONFIG_SMP) */
+#endif /* !(_PPC64_SMP_H) */
+#endif /* __KERNEL__ */