diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2013-03-21 22:49:54 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-04-08 17:39:27 +0200 |
| commit | 6862c05ce4bc59ac52165df66f2a55ad692ef941 (patch) | |
| tree | dbd52f5b442153959253c6bdbfa25b7e9d406f2e /arch | |
| parent | af695cd931edab7f202fb616d69d4b746c5d6912 (diff) | |
openrisc: Use generic idle loop
Idle poller with an extra check_pgt_cache() invocation. Use the core
code.
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>
Link: http://lkml.kernel.org/r/20130321215234.886530981@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/openrisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/openrisc/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/openrisc/kernel/idle.c | 73 |
3 files changed, 2 insertions, 74 deletions
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index 9ab3bf2eca8d..e111b5200cd9 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -21,6 +21,7 @@ config OPENRISC select GENERIC_CLOCKEVENTS select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER + select GENERIC_IDLE_LOOP select MODULES_USE_ELF_RELA config MMU diff --git a/arch/openrisc/kernel/Makefile b/arch/openrisc/kernel/Makefile index 35f92ce51c24..ec6d9d37cefd 100644 --- a/arch/openrisc/kernel/Makefile +++ b/arch/openrisc/kernel/Makefile @@ -4,7 +4,7 @@ extra-y := head.o vmlinux.lds -obj-y := setup.o idle.o or32_ksyms.o process.o dma.o \ +obj-y := setup.o or32_ksyms.o process.o dma.o \ traps.o time.o irq.o entry.o ptrace.o signal.o \ sys_call_table.o diff --git a/arch/openrisc/kernel/idle.c b/arch/openrisc/kernel/idle.c deleted file mode 100644 index 5e8a3b6d6bc6..000000000000 --- a/arch/openrisc/kernel/idle.c +++ /dev/null @@ -1,73 +0,0 @@ -/* - * OpenRISC idle.c - * - * Linux architectural port borrowing liberally from similar works of - * others. All original copyrights apply as per the original source - * declaration. - * - * Modifications for the OpenRISC architecture: - * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> - * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * Idle daemon for or32. Idle daemon will handle any action - * that needs to be taken when the system becomes idle. - */ - -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/slab.h> -#include <linux/tick.h> - -#include <asm/pgtable.h> -#include <asm/uaccess.h> -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/mmu.h> -#include <asm/cache.h> -#include <asm/pgalloc.h> - -void (*powersave) (void) = NULL; - -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()) { - check_pgt_cache(); - rmb(); - - clear_thread_flag(TIF_POLLING_NRFLAG); - - local_irq_disable(); - /* Don't trace irqs off for idle */ - stop_critical_timings(); - if (!need_resched() && powersave != NULL) - powersave(); - start_critical_timings(); - local_irq_enable(); - set_thread_flag(TIF_POLLING_NRFLAG); - } - - rcu_idle_exit(); - tick_nohz_idle_exit(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} |