From aba92c9e2cf3042bf6efc68fa2e4235ba01bf499 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 21 Mar 2013 22:50:02 +0100 Subject: unicore: Use generic idle loop Signed-off-by: Thomas Gleixner Cc: Linus Torvalds Cc: Rusty Russell Cc: Paul McKenney Cc: Peter Zijlstra Reviewed-by: Cc: Srivatsa S. Bhat Cc: Magnus Damm Cc: Guan Xuetao Link: http://lkml.kernel.org/r/20130321215235.415426466@linutronix.de Signed-off-by: Thomas Gleixner --- arch/unicore32/Kconfig | 1 + arch/unicore32/kernel/process.c | 21 +++------------------ 2 files changed, 4 insertions(+), 18 deletions(-) (limited to 'arch/unicore32') diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index 2943e3acdf0c..e12678daaed1 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -17,6 +17,7 @@ config UNICORE32 select ARCH_WANT_FRAME_POINTERS select GENERIC_IOMAP select MODULES_USE_ELF_REL + select GENERIC_IDLE_LOOP help UniCore-32 is 32-bit Instruction Set Architecture, including a series of low-power-consumption RISC chip diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c index 872d7e22d847..7fab86d7c5d4 100644 --- a/arch/unicore32/kernel/process.c +++ b/arch/unicore32/kernel/process.c @@ -45,25 +45,10 @@ static const char * const processor_modes[] = { "UK18", "UK19", "UK1A", "EXTN", "UK1C", "UK1D", "UK1E", "SUSR" }; -void cpu_idle(void) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched()) { - local_irq_disable(); - stop_critical_timings(); - cpu_do_idle(); - local_irq_enable(); - start_critical_timings(); - } - rcu_idle_exit(); - tick_nohz_idle_exit(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } + cpu_do_idle(); + local_irq_enable(); } static char reboot_mode = 'h'; -- cgit v1.2.3 From d190e8195b90bc1e65c494fe08e54e9e581bfd16 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 17 Apr 2013 10:33:13 +0200 Subject: idle: Remove GENERIC_IDLE_LOOP config switch All archs are converted over. Remove the config switch and the fallback code. Signed-off-by: Thomas Gleixner --- arch/unicore32/Kconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/unicore32') diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index e12678daaed1..2943e3acdf0c 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -17,7 +17,6 @@ config UNICORE32 select ARCH_WANT_FRAME_POINTERS select GENERIC_IOMAP select MODULES_USE_ELF_REL - select GENERIC_IDLE_LOOP help UniCore-32 is 32-bit Instruction Set Architecture, including a series of low-power-consumption RISC chip -- cgit v1.2.3