process_64.c (2bbb6817c0ac1b5f2a68d720f364f98eeb1ac4fd) process_64.c (1268fbc746ea1cd279886a740dcbad4ba5232225)
1/* arch/sparc64/kernel/process.c
2 *
3 * Copyright (C) 1995, 1996, 2008 David S. Miller (davem@davemloft.net)
4 * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
5 * Copyright (C) 1997, 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
6 */
7
8/*

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90/* The idle loop on sparc64. */
91void cpu_idle(void)
92{
93 int cpu = smp_processor_id();
94
95 set_thread_flag(TIF_POLLING_NRFLAG);
96
97 while(1) {
1/* arch/sparc64/kernel/process.c
2 *
3 * Copyright (C) 1995, 1996, 2008 David S. Miller (davem@davemloft.net)
4 * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
5 * Copyright (C) 1997, 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
6 */
7
8/*

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90/* The idle loop on sparc64. */
91void cpu_idle(void)
92{
93 int cpu = smp_processor_id();
94
95 set_thread_flag(TIF_POLLING_NRFLAG);
96
97 while(1) {
98 tick_nohz_idle_enter_norcu();
98 tick_nohz_idle_enter();
99 rcu_idle_enter();
99
100 while (!need_resched() && !cpu_is_offline(cpu))
101 sparc64_yield(cpu);
102
100
101 while (!need_resched() && !cpu_is_offline(cpu))
102 sparc64_yield(cpu);
103
103 tick_nohz_idle_exit_norcu();
104 rcu_idle_exit();
105 tick_nohz_idle_exit();
104
105 preempt_enable_no_resched();
106
107#ifdef CONFIG_HOTPLUG_CPU
108 if (cpu_is_offline(cpu))
109 cpu_play_dead();
110#endif
111

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107 preempt_enable_no_resched();
108
109#ifdef CONFIG_HOTPLUG_CPU
110 if (cpu_is_offline(cpu))
111 cpu_play_dead();
112#endif
113

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