hexagon: 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>
Acked-by: Richard Kuo <rkuo@codeaurora.org>
Link: http://lkml.kernel.org/r/20130321215234.338692935@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index e4decc6b8947e4fe68180010a524e0f7b6600084..6e3710e84a6c18f5ea35e961999aa3adeccb5c96 100644 (file)
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -24,6 +24,7 @@ config HEXAGON
        select NO_IOPORT
        select GENERIC_IOMAP
        select GENERIC_SMP_IDLE_THREAD
+       select GENERIC_IDLE_LOOP
        select STACKTRACE_SUPPORT
        select KTIME_SCALAR
        select GENERIC_CLOCKEVENTS

diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index 06ae9ffcabd5438d5998a0a02ba1e56bd21334e2..9b948c619a0320a28d55a23c1524843d133608b7 100644 (file)
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -51,28 +51,11 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp)
  *  If hardware or VM offer wait termination even though interrupts
  *  are disabled.
  */
-static void default_idle(void)
+void arch_cpu_idle(void)
 {
        __vmwait();
-}
-
-void (*idle_sleep)(void) = default_idle;
-
-void cpu_idle(void)
-{
-       while (1) {
-               tick_nohz_idle_enter();
-               local_irq_disable();
-               while (!need_resched()) {
-                       idle_sleep();
-                       /*  interrupts wake us up, but aren't serviced  */
-                       local_irq_enable();     /* service interrupt   */
-                       local_irq_disable();
-               }
-               local_irq_enable();
-               tick_nohz_idle_exit();
-               schedule();
-       }
+       /*  interrupts wake us up, but irqs are still disabled */
+       local_irq_enable();
 }
 
 /*

diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 8e095dffd070da9b57fa03ab67b93014013e7e0d..0e364ca4319811b34ad71f213cb226e819ba7e9e 100644 (file)
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -184,7 +184,7 @@ void __cpuinit start_secondary(void)
 
        local_irq_enable();
 
-       cpu_idle();
+       cpu_startup_entry(CPUHP_ONLINE);
 }