Commit-ID: ccf8e78fe2a7e92b6d43de8023786b9dd199aab1 Gitweb: http://git.kernel.org/tip/ccf8e78fe2a7e92b6d43de8023786b9dd199aab1 Author: Thomas Gleixner <[email protected]> AuthorDate: Thu, 21 Mar 2013 22:49:44 +0100 Committer: Thomas Gleixner <[email protected]> CommitDate: Mon, 8 Apr 2013 17:39:25 +0200
frv: Use generic idle loop Signed-off-by: Thomas Gleixner <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Rusty Russell <[email protected]> Cc: Paul McKenney <[email protected]> Cc: Peter Zijlstra <[email protected]> Reviewed-by: Cc: Srivatsa S. Bhat <[email protected]> Cc: Magnus Damm <[email protected]> Cc: David Howells <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> --- arch/frv/Kconfig | 1 + arch/frv/kernel/process.c | 27 +++++---------------------- 2 files changed, 6 insertions(+), 22 deletions(-) diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index 2ce731f..0d998db 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -8,6 +8,7 @@ config FRV select HAVE_GENERIC_HARDIRQS select VIRT_TO_BUS select GENERIC_IRQ_SHOW + select GENERIC_IDLE_LOOP select HAVE_DEBUG_BUGVERBOSE select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_CPU_DEVICES diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c index 23916b2..5d40aeb77 100644 --- a/arch/frv/kernel/process.c +++ b/arch/frv/kernel/process.c @@ -59,29 +59,12 @@ static void core_sleep_idle(void) mb(); } -void (*idle)(void) = core_sleep_idle; - -/* - * 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) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - while (1) { - rcu_idle_enter(); - while (!need_resched()) { - check_pgt_cache(); - - if (!frv_dma_inprogress && idle) - idle(); - } - rcu_idle_exit(); - - schedule_preempt_disabled(); - } + if (!frv_dma_inprogress) + core_sleep_idle(); + else + local_irq_enable(); } void machine_restart(char * __unused) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
