Commit ea0588cb authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

sh: Use generic idle thread allocation 



Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: default avatarPaul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120420124557.855203626@linutronix.de
parent 6bba2682

arch/sh/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ config SUPERH 
	select RTC_LIB

	select GENERIC_ATOMIC64

	select GENERIC_IRQ_SHOW

	select GENERIC_SMP_IDLE_THREAD

	help

	  The SuperH is a RISC processor targeted for use in embedded systems

	  and consumer electronics; it was also used in the Sega Dreamcast

arch/sh/include/asm/processor.h

+0 −4
Original line number Diff line number Diff line
@@ -85,10 +85,6 @@ struct sh_cpuinfo { 
	struct tlb_info itlb;

	struct tlb_info dtlb;



#ifdef CONFIG_SMP

	struct task_struct *idle;

#endif



	unsigned int phys_bits;

	unsigned long flags;

} __attribute__ ((aligned(L1_CACHE_BYTES)));

arch/sh/kernel/smp.c

+1 −13
Original line number Diff line number Diff line
@@ -220,22 +220,10 @@ extern struct { 
	void *thread_info;

} stack_start;



int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)

int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tsk)

{

	struct task_struct *tsk;

	unsigned long timeout;



	tsk = cpu_data[cpu].idle;

	if (!tsk) {

		tsk = fork_idle(cpu);

		if (IS_ERR(tsk)) {

			pr_err("Failed forking idle task for cpu %d\n", cpu);

			return PTR_ERR(tsk);

		}



		cpu_data[cpu].idle = tsk;

	}



	per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;



	/* Fill in data in head.S for secondary cpus */

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