tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/* smp.h: Sparc64 specific SMP stuff.
3 *
4 * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
5 */
6
7#ifndef _SPARC64_SMP_H
8#define _SPARC64_SMP_H
9
10#include <linux/threads.h>
11#include <asm/asi.h>
12#include <asm/starfire.h>
13#include <asm/spitfire.h>
14
15#ifndef __ASSEMBLER__
16
17#include <linux/cpumask.h>
18#include <linux/cache.h>
19
20#endif /* !(__ASSEMBLER__) */
21
22#ifdef CONFIG_SMP
23
24#ifndef __ASSEMBLER__
25
26/*
27 * Private routines/data
28 */
29
30#include <linux/bitops.h>
31#include <linux/atomic.h>
32#include <asm/percpu.h>
33
34DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
35extern cpumask_t cpu_core_map[NR_CPUS];
36
37void smp_init_cpu_poke(void);
38void scheduler_poke(void);
39
40void arch_send_call_function_single_ipi(int cpu);
41void arch_send_call_function_ipi_mask(const struct cpumask *mask);
42
43/*
44 * General functions that each host system must provide.
45 */
46
47int hard_smp_processor_id(void);
48#define raw_smp_processor_id() (current_thread_info()->cpu)
49
50void smp_fill_in_sib_core_maps(void);
51void __noreturn cpu_play_dead(void);
52
53void smp_fetch_global_regs(void);
54void smp_fetch_global_pmu(void);
55
56struct seq_file;
57void smp_bogo(struct seq_file *);
58void smp_info(struct seq_file *);
59
60void smp_callin(void);
61void cpu_panic(void);
62void smp_synchronize_tick_client(void);
63void smp_capture(void);
64void smp_release(void);
65
66#ifdef CONFIG_HOTPLUG_CPU
67int __cpu_disable(void);
68void __cpu_die(unsigned int cpu);
69#endif
70
71#endif /* !(__ASSEMBLER__) */
72
73#else
74
75#define hard_smp_processor_id() 0
76#define smp_fill_in_sib_core_maps() do { } while (0)
77#define smp_fetch_global_regs() do { } while (0)
78#define smp_fetch_global_pmu() do { } while (0)
79#define smp_init_cpu_poke() do { } while (0)
80#define scheduler_poke() do { } while (0)
81
82#endif /* !(CONFIG_SMP) */
83
84#endif /* !(_SPARC64_SMP_H) */