parisc: Use generic idle 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: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Link: http://lkml.kernel.org/r/20130321215234.956305981@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 0339181..0821e70 100644 (file)
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,6 +18,7 @@ config PARISC
        select GENERIC_PCI_IOMAP
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
        select GENERIC_SMP_IDLE_THREAD
+       select GENERIC_IDLE_LOOP
        select GENERIC_STRNCPY_FROM_USER
        select SYSCTL_ARCH_UNALIGN_ALLOW
        select HAVE_MOD_ARCH_SPECIFIC

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d135072..55f92b6 100644 (file)
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -59,28 +59,6 @@
 #include <asm/unwind.h>
 #include <asm/sections.h>
 
-/*
- * The idle thread. There's no useful work to be
- * done, so just try to conserve power and have a
- * low exit latency (ie sit in a loop waiting for
- * somebody to say that they'd like to reschedule)
- */
-void cpu_idle(void)
-{
-       set_thread_flag(TIF_POLLING_NRFLAG);
-
-       /* endless idle loop with no priority at all */
-       while (1) {
-               rcu_idle_enter();
-               while (!need_resched())
-                       barrier();
-               rcu_idle_exit();
-               schedule_preempt_disabled();
-               check_pgt_cache();
-       }
-}
-
-
 #define COMMAND_GLOBAL  F_EXTEND(0xfffe0030)
 #define CMD_RESET       5       /* reset any module */
 

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 6266730..fd1bb15 100644 (file)
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -329,7 +329,7 @@ void __init smp_callin(void)
 
        local_irq_enable();  /* Interrupts have been off until now */
 
-       cpu_idle();      /* Wait for timer to schedule some work */
+       cpu_startup_entry(CPUHP_ONLINE);
 
        /* NOTREACHED */
        panic("smp_callin() AAAAaaaaahhhh....\n");