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sh: Use generic idle thread allocation 

Signed-off-by: Thomas 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: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120420124557.855203626@linutronix.de
This commit is contained in:
Thomas Gleixner 2012-04-20 13:05:54 +00:00
parent 6bba2682c6
commit ea0588cb6b
3 changed files with 2 additions and 17 deletions
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1
arch/sh/Kconfig
View File

@ -28,6 +28,7 @@ config SUPERH
select RTC_LIB select RTC_LIB
select GENERIC_ATOMIC64 select GENERIC_ATOMIC64
select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW
select GENERIC_SMP_IDLE_THREAD
help help
The SuperH is a RISC processor targeted for use in embedded systems The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast and consumer electronics; it was also used in the Sega Dreamcast

4
arch/sh/include/asm/processor.h
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@ -85,10 +85,6 @@ struct sh_cpuinfo {
struct tlb_info itlb; struct tlb_info itlb;
struct tlb_info dtlb; struct tlb_info dtlb;
#ifdef CONFIG_SMP
struct task_struct *idle;
#endif
unsigned int phys_bits; unsigned int phys_bits;
unsigned long flags; unsigned long flags;
} __attribute__ ((aligned(L1_CACHE_BYTES))); } __attribute__ ((aligned(L1_CACHE_BYTES)));

14
arch/sh/kernel/smp.c
View File

@ -220,22 +220,10 @@ extern struct {
void *thread_info; void *thread_info;
} stack_start; } 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; 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; per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
/* Fill in data in head.S for secondary cpus */ /* Fill in data in head.S for secondary cpus */