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Commit 4e0fcc56 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

hexagon: Use generic idle loop 



Signed-off-by: default avatarThomas 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: default avatarCc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: default avatarRichard Kuo <rkuo@codeaurora.org>
Link: http://lkml.kernel.org/r/20130321215234.338692935@linutronix.de


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 0d24260c

arch/hexagon/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ config HEXAGON 
	select NO_IOPORT

	select GENERIC_IOMAP

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_IDLE_LOOP

	select STACKTRACE_SUPPORT

	select KTIME_SCALAR

	select GENERIC_CLOCKEVENTS

arch/hexagon/kernel/process.c

+3 −20
Original line number Diff line number Diff line
@@ -51,28 +51,11 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) 
 *  If hardware or VM offer wait termination even though interrupts

 *  are disabled.

 */

static void default_idle(void)

void arch_cpu_idle(void)

{

	__vmwait();

}



void (*idle_sleep)(void) = default_idle;



void cpu_idle(void)

{

	while (1) {

		tick_nohz_idle_enter();

		local_irq_disable();

		while (!need_resched()) {

			idle_sleep();

			/*  interrupts wake us up, but aren't serviced  */

			local_irq_enable();	/* service interrupt   */

			local_irq_disable();

		}

	/*  interrupts wake us up, but irqs are still disabled */

	local_irq_enable();

		tick_nohz_idle_exit();

		schedule();

	}

}



/*

arch/hexagon/kernel/smp.c

+1 −1
Original line number Diff line number Diff line
@@ -184,7 +184,7 @@ void __cpuinit start_secondary(void) 


	local_irq_enable();



	cpu_idle();

	cpu_startup_entry(CPUHP_ONLINE);

}