FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-16 14:02:10 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

alpha: Use generic idle loop

Browse Source 
The core provides a generic idle poll 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: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Link: http://lkml.kernel.org/r/20130321215233.766017538@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2013-03-21 22:49:37 +01:00
parent fa35e42a00
commit a123322d8a
3 changed files with 2 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/alpha/Kconfig
View File

@ -17,6 +17,7 @@ config ALPHA
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_SMP_IDLE_THREAD
select GENERIC_IDLE_LOOP
select GENERIC_CMOS_UPDATE
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER

19
arch/alpha/kernel/process.c
View File

@ -46,25 +46,6 @@
void (*pm_power_off)(void) = machine_power_off;
EXPORT_SYMBOL(pm_power_off);
void
cpu_idle(void)
{
current_thread_info()->status |= TS_POLLING;
while (1) {
/* FIXME -- EV6 and LCA45 know how to power down
the CPU. */
rcu_idle_enter();
while (!need_resched())
cpu_relax();
rcu_idle_exit();
schedule_preempt_disabled();
}
}
struct halt_info {
int mode;
char *restart_cmd;

3
arch/alpha/kernel/smp.c
View File

@ -167,8 +167,7 @@ smp_callin(void)
cpuid, current, current->active_mm));
preempt_disable();
/* Do nothing. */
cpu_idle();
cpu_startup_entry(CPUHP_ONLINE);
}
/* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */