mirror of https://gitee.com/openkylin/linux.git
parisc: Use generic idle loop
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Link: http://lkml.kernel.org/r/20130321215234.956305981@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -18,6 +18,7 @@ config PARISC
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select GENERIC_PCI_IOMAP
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select ARCH_HAVE_NMI_SAFE_CMPXCHG
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select GENERIC_SMP_IDLE_THREAD
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select GENERIC_IDLE_LOOP
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select GENERIC_STRNCPY_FROM_USER
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select SYSCTL_ARCH_UNALIGN_ALLOW
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select HAVE_MOD_ARCH_SPECIFIC
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@ -59,28 +59,6 @@
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#include <asm/unwind.h>
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#include <asm/sections.h>
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/*
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* The idle thread. There's no useful work to be
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* done, so just try to conserve power and have a
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* low exit latency (ie sit in a loop waiting for
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* somebody to say that they'd like to reschedule)
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*/
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void cpu_idle(void)
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{
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set_thread_flag(TIF_POLLING_NRFLAG);
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/* endless idle loop with no priority at all */
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while (1) {
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rcu_idle_enter();
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while (!need_resched())
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barrier();
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rcu_idle_exit();
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schedule_preempt_disabled();
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check_pgt_cache();
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}
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}
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#define COMMAND_GLOBAL F_EXTEND(0xfffe0030)
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#define CMD_RESET 5 /* reset any module */
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@ -329,7 +329,7 @@ void __init smp_callin(void)
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local_irq_enable(); /* Interrupts have been off until now */
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cpu_idle(); /* Wait for timer to schedule some work */
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cpu_startup_entry(CPUHP_ONLINE);
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/* NOTREACHED */
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panic("smp_callin() AAAAaaaaahhhh....\n");
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