aboutsummaryrefslogtreecommitdiff
path: root/arch/microblaze/kernel
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2013-03-21 22:49:51 +0100
committerThomas Gleixner <tglx@linutronix.de>2013-04-08 17:39:26 +0200
commite962bb9e9cf73b8c8893c95903e791dd5ec19fb4 (patch)
tree820b06626ef6a0614fc10aa30073949df28fae6e /arch/microblaze/kernel
parentd1dba0fcd3e62f32d5925bcb91eba8757951464c (diff)
downloadlinux-e962bb9e9cf73b8c8893c95903e791dd5ec19fb4.tar.gz
microblaze: Use generic idle loop
The microblaze idle loop provides a polling and a non polling version, which are suprisingly both polling, just with slightly different instrumentation. Remove them and use the generic poller. 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: Michal Simek <monstr@monstr.eu> Link: http://lkml.kernel.org/r/20130321215234.687590459@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/microblaze/kernel')
-rw-r--r--arch/microblaze/kernel/process.c53
1 files changed, 0 insertions, 53 deletions
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index 7c36171771f..7cce2e9c171 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -44,59 +44,6 @@ void show_regs(struct pt_regs *regs)
void (*pm_power_off)(void) = NULL;
EXPORT_SYMBOL(pm_power_off);
-static int hlt_counter = 1;
-
-static int __init nohlt_setup(char *__unused)
-{
- hlt_counter = 1;
- return 1;
-}
-__setup("nohlt", nohlt_setup);
-
-static int __init hlt_setup(char *__unused)
-{
- hlt_counter = 0;
- return 1;
-}
-__setup("hlt", hlt_setup);
-
-void default_idle(void)
-{
- if (likely(hlt_counter)) {
- local_irq_disable();
- stop_critical_timings();
- cpu_relax();
- start_critical_timings();
- local_irq_enable();
- } else {
- clear_thread_flag(TIF_POLLING_NRFLAG);
- smp_mb__after_clear_bit();
- local_irq_disable();
- while (!need_resched())
- cpu_sleep();
- local_irq_enable();
- set_thread_flag(TIF_POLLING_NRFLAG);
- }
-}
-
-void cpu_idle(void)
-{
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- /* endless idle loop with no priority at all */
- while (1) {
- tick_nohz_idle_enter();
- rcu_idle_enter();
- while (!need_resched())
- default_idle();
- rcu_idle_exit();
- tick_nohz_idle_exit();
-
- schedule_preempt_disabled();
- check_pgt_cache();
- }
-}
-
void flush_thread(void)
{
}