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Sam Ravnborgf5e706a2008-07-17 21:55:51 -07001/* smp.h: Sparc64 specific SMP stuff.
2 *
3 * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
4 */
5
6#ifndef _SPARC64_SMP_H
7#define _SPARC64_SMP_H
8
9#include <linux/threads.h>
10#include <asm/asi.h>
11#include <asm/starfire.h>
12#include <asm/spitfire.h>
13
14#ifndef __ASSEMBLY__
15
16#include <linux/cpumask.h>
17#include <linux/cache.h>
18
19#endif /* !(__ASSEMBLY__) */
20
21#ifdef CONFIG_SMP
22
23#ifndef __ASSEMBLY__
24
25/*
26 * Private routines/data
27 */
28
29#include <linux/bitops.h>
30#include <asm/atomic.h>
31#include <asm/percpu.h>
32
33DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
34extern cpumask_t cpu_core_map[NR_CPUS];
35extern int sparc64_multi_core;
36
David S. Millerd172ad12008-07-17 23:44:50 -070037extern void arch_send_call_function_single_ipi(int cpu);
Rusty Russellf46df022009-03-16 14:40:22 +103038extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
39#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask
David S. Millerd172ad12008-07-17 23:44:50 -070040
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070041/*
42 * General functions that each host system must provide.
43 */
44
45extern int hard_smp_processor_id(void);
46#define raw_smp_processor_id() (current_thread_info()->cpu)
47
48extern void smp_fill_in_sib_core_maps(void);
49extern void cpu_play_dead(void);
50
51extern void smp_fetch_global_regs(void);
52
53#ifdef CONFIG_HOTPLUG_CPU
54extern int __cpu_disable(void);
55extern void __cpu_die(unsigned int cpu);
56#endif
57
58#endif /* !(__ASSEMBLY__) */
59
60#else
61
62#define hard_smp_processor_id() 0
63#define smp_fill_in_sib_core_maps() do { } while (0)
64#define smp_fetch_global_regs() do { } while (0)
65
66#endif /* !(CONFIG_SMP) */
67
68#endif /* !(_SPARC64_SMP_H) */