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authorStephen Rothwell <sfr@canb.auug.org.au>2008-08-01 01:20:30 -0400
committerPaul Mackerras <paulus@samba.org>2008-08-03 22:02:00 -0400
commitb8b572e1015f81b4e748417be2629dfe51ab99f9 (patch)
tree7df58667d5ed71d6c8f8f4ce40ca16b6fb776d0b /arch/powerpc/include/asm/smp.h
parent2b12a4c524812fb3f6ee590a02e65b95c8c32229 (diff)
powerpc: Move include files to arch/powerpc/include/asm
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/smp.h')
-rw-r--r--arch/powerpc/include/asm/smp.h127
1 files changed, 127 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
new file mode 100644
index 000000000000..4d28e1e4521b
--- /dev/null
+++ b/arch/powerpc/include/asm/smp.h
@@ -0,0 +1,127 @@
1/*
2 * smp.h: PowerPC-specific SMP code.
3 *
4 * Original was a copy of sparc smp.h. Now heavily modified
5 * for PPC.
6 *
7 * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
8 * Copyright (C) 1996-2001 Cort Dougan <cort@fsmlabs.com>
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
14 */
15
16#ifndef _ASM_POWERPC_SMP_H
17#define _ASM_POWERPC_SMP_H
18#ifdef __KERNEL__
19
20#include <linux/threads.h>
21#include <linux/cpumask.h>
22#include <linux/kernel.h>
23
24#ifndef __ASSEMBLY__
25
26#ifdef CONFIG_PPC64
27#include <asm/paca.h>
28#endif
29#include <asm/percpu.h>
30
31extern int boot_cpuid;
32
33extern void cpu_die(void);
34
35#ifdef CONFIG_SMP
36
37extern void smp_send_debugger_break(int cpu);
38extern void smp_message_recv(int);
39
40DECLARE_PER_CPU(unsigned int, pvr);
41
42#ifdef CONFIG_HOTPLUG_CPU
43extern void fixup_irqs(cpumask_t map);
44int generic_cpu_disable(void);
45int generic_cpu_enable(unsigned int cpu);
46void generic_cpu_die(unsigned int cpu);
47void generic_mach_cpu_die(void);
48#endif
49
50#ifdef CONFIG_PPC64
51#define raw_smp_processor_id() (local_paca->paca_index)
52#define hard_smp_processor_id() (get_paca()->hw_cpu_id)
53#else
54/* 32-bit */
55extern int smp_hw_index[];
56
57#define raw_smp_processor_id() (current_thread_info()->cpu)
58#define hard_smp_processor_id() (smp_hw_index[smp_processor_id()])
59#define get_hard_smp_processor_id(cpu) (smp_hw_index[(cpu)])
60#define set_hard_smp_processor_id(cpu, phys)\
61 (smp_hw_index[(cpu)] = (phys))
62#endif
63
64DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
65DECLARE_PER_CPU(cpumask_t, cpu_core_map);
66extern int cpu_to_core_id(int cpu);
67
68/* Since OpenPIC has only 4 IPIs, we use slightly different message numbers.
69 *
70 * Make sure this matches openpic_request_IPIs in open_pic.c, or what shows up
71 * in /proc/interrupts will be wrong!!! --Troy */
72#define PPC_MSG_CALL_FUNCTION 0
73#define PPC_MSG_RESCHEDULE 1
74#define PPC_MSG_CALL_FUNC_SINGLE 2
75#define PPC_MSG_DEBUGGER_BREAK 3
76
77void smp_init_iSeries(void);
78void smp_init_pSeries(void);
79void smp_init_cell(void);
80void smp_init_celleb(void);
81void smp_setup_cpu_maps(void);
82void smp_setup_cpu_sibling_map(void);
83
84extern int __cpu_disable(void);
85extern void __cpu_die(unsigned int cpu);
86
87#else
88/* for UP */
89#define hard_smp_processor_id() 0
90#define smp_setup_cpu_maps()
91
92#endif /* CONFIG_SMP */
93
94#ifdef CONFIG_PPC64
95#define get_hard_smp_processor_id(CPU) (paca[(CPU)].hw_cpu_id)
96#define set_hard_smp_processor_id(CPU, VAL) \
97 do { (paca[(CPU)].hw_cpu_id = (VAL)); } while (0)
98
99extern void smp_release_cpus(void);
100
101#else
102/* 32-bit */
103#ifndef CONFIG_SMP
104extern int boot_cpuid_phys;
105#define get_hard_smp_processor_id(cpu) boot_cpuid_phys
106#define set_hard_smp_processor_id(cpu, phys)
107#endif
108#endif
109
110extern int smt_enabled_at_boot;
111
112extern int smp_mpic_probe(void);
113extern void smp_mpic_setup_cpu(int cpu);
114extern void smp_generic_kick_cpu(int nr);
115
116extern void smp_generic_give_timebase(void);
117extern void smp_generic_take_timebase(void);
118
119extern struct smp_ops_t *smp_ops;
120
121extern void arch_send_call_function_single_ipi(int cpu);
122extern void arch_send_call_function_ipi(cpumask_t mask);
123
124#endif /* __ASSEMBLY__ */
125
126#endif /* __KERNEL__ */
127#endif /* _ASM_POWERPC_SMP_H) */