From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933057Ab3CUWDe (ORCPT ); Thu, 21 Mar 2013 18:03:34 -0400 Received: from www.linutronix.de ([62.245.132.108]:33028 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932144Ab3CUVxA (ORCPT ); Thu, 21 Mar 2013 17:53:00 -0400 Message-Id: <20130321214930.752934102@linutronix.de> User-Agent: quilt/0.48-1 Date: Thu, 21 Mar 2013 21:52:56 -0000 From: Thomas Gleixner To: LKML Cc: linux-arch@vger.kernel.org, Linus Torvalds , Andrew Morton , Rusty Russell , Paul McKenney , Ingo Molnar , Peter Zijlstra , "Srivatsa S. Bhat" , Magnus Damm Subject: [patch 00/34] idle: Consolidate idle implementations X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Each architecture implements its own cpu_idle() code, which is more or less the same on all architectures (plus/minus a few bugs and a few missing extra functionalities, instrumentation ...). That also forces everyone who is interested in idle related features to add new functionality to every architecture. What a waste. Aside of that pointless code duplicaiton the ongoing quest to consolidate the cpu hotplug code needs a common entry point for the non boot cpus. The following series implements a generic idle function and converts most architectures over. I left out SPARC (it involves sparc asm) and UM (it made me barf). If we can move those architectures as well, we can get rid of the extra config switch and have everything consolidated. I spent a lot of time to make sure that the conversion preserved the non obvious differences of the architecture implementations, but I really need help from the affected maintainers to prove the correctness. Thanks, tglx --- arch/openrisc/kernel/idle.c | 73 ------------ linux-2.6/arch/Kconfig | 3 linux-2.6/arch/alpha/Kconfig | 1 linux-2.6/arch/alpha/include/asm/thread_info.h | 2 linux-2.6/arch/alpha/kernel/process.c | 19 --- linux-2.6/arch/alpha/kernel/smp.c | 3 linux-2.6/arch/arc/Kconfig | 1 linux-2.6/arch/arc/kernel/process.c | 27 ---- linux-2.6/arch/arc/kernel/smp.c | 2 linux-2.6/arch/arm/Kconfig | 2 linux-2.6/arch/arm/include/asm/system_misc.h | 3 linux-2.6/arch/arm/kernel/process.c | 100 ++++------------- linux-2.6/arch/arm/kernel/smp.c | 2 linux-2.6/arch/arm/mach-gemini/idle.c | 4 linux-2.6/arch/arm/mach-gemini/irq.c | 2 linux-2.6/arch/arm/mach-ixp4xx/common.c | 2 linux-2.6/arch/arm/mach-omap1/pm.c | 5 linux-2.6/arch/arm/mach-omap2/omap_hwmod.c | 6 - linux-2.6/arch/arm/mach-omap2/pm.c | 5 linux-2.6/arch/arm/mach-orion5x/board-dt.c | 2 linux-2.6/arch/arm/mach-orion5x/common.c | 2 linux-2.6/arch/arm/mach-shark/core.c | 2 linux-2.6/arch/arm/mach-shmobile/suspend.c | 4 linux-2.6/arch/arm/mach-w90x900/dev.c | 2 linux-2.6/arch/arm64/Kconfig | 1 linux-2.6/arch/arm64/kernel/process.c | 43 ------- linux-2.6/arch/arm64/kernel/smp.c | 2 linux-2.6/arch/avr32/Kconfig | 1 linux-2.6/arch/avr32/kernel/process.c | 13 -- linux-2.6/arch/avr32/kernel/time.c | 8 + linux-2.6/arch/avr32/mach-at32ap/include/mach/pm.h | 24 ---- linux-2.6/arch/avr32/mach-at32ap/pm-at32ap700x.S | 7 - linux-2.6/arch/blackfin/Kconfig | 1 linux-2.6/arch/blackfin/kernel/process.c | 30 ----- linux-2.6/arch/blackfin/mach-common/smp.c | 2 linux-2.6/arch/c6x/Kconfig | 1 linux-2.6/arch/c6x/kernel/process.c | 28 ---- linux-2.6/arch/cris/Kconfig | 1 linux-2.6/arch/cris/arch-v10/kernel/process.c | 3 linux-2.6/arch/cris/arch-v32/kernel/process.c | 12 -- linux-2.6/arch/cris/arch-v32/kernel/smp.c | 4 linux-2.6/arch/cris/include/asm/processor.h | 7 - linux-2.6/arch/cris/kernel/process.c | 49 -------- linux-2.6/arch/frv/Kconfig | 1 linux-2.6/arch/frv/kernel/process.c | 27 ---- linux-2.6/arch/h8300/Kconfig | 1 linux-2.6/arch/h8300/kernel/process.c | 35 ------ linux-2.6/arch/hexagon/Kconfig | 1 linux-2.6/arch/hexagon/kernel/process.c | 23 ---- linux-2.6/arch/hexagon/kernel/smp.c | 2 linux-2.6/arch/ia64/Kconfig | 1 linux-2.6/arch/ia64/include/asm/thread_info.h | 2 linux-2.6/arch/ia64/kernel/perfmon.c | 13 -- linux-2.6/arch/ia64/kernel/process.c | 83 ++------------ linux-2.6/arch/ia64/kernel/smpboot.c | 2 linux-2.6/arch/m32r/Kconfig | 1 linux-2.6/arch/m32r/kernel/process.c | 18 --- linux-2.6/arch/m32r/kernel/smpboot.c | 2 linux-2.6/arch/m68k/Kconfig | 1 linux-2.6/arch/m68k/kernel/process.c | 32 ----- linux-2.6/arch/metag/Kconfig | 1 linux-2.6/arch/metag/include/asm/thread_info.h | 2 linux-2.6/arch/metag/kernel/process.c | 32 ----- linux-2.6/arch/metag/kernel/smp.c | 2 linux-2.6/arch/microblaze/Kconfig | 2 linux-2.6/arch/microblaze/include/asm/processor.h | 5 linux-2.6/arch/microblaze/include/asm/thread_info.h | 1 linux-2.6/arch/microblaze/kernel/process.c | 65 ----------- linux-2.6/arch/mips/Kconfig | 1 linux-2.6/arch/mips/kernel/process.c | 46 ++------ linux-2.6/arch/mips/kernel/smp.c | 2 linux-2.6/arch/mn10300/Kconfig | 1 linux-2.6/arch/mn10300/include/asm/thread_info.h | 2 linux-2.6/arch/mn10300/kernel/process.c | 70 +----------- linux-2.6/arch/mn10300/kernel/smp.c | 7 - linux-2.6/arch/openrisc/Kconfig | 1 linux-2.6/arch/openrisc/include/asm/thread_info.h | 2 linux-2.6/arch/parisc/Kconfig | 1 linux-2.6/arch/parisc/include/asm/thread_info.h | 2 linux-2.6/arch/parisc/kernel/process.c | 22 --- linux-2.6/arch/parisc/kernel/smp.c | 2 linux-2.6/arch/powerpc/Kconfig | 1 linux-2.6/arch/powerpc/include/asm/thread_info.h | 4 linux-2.6/arch/powerpc/kernel/idle.c | 78 +++---------- linux-2.6/arch/powerpc/kernel/smp.c | 2 linux-2.6/arch/s390/kernel/process.c | 25 +--- linux-2.6/arch/s390/kernel/smp.c | 3 linux-2.6/arch/score/Kconfig | 1 linux-2.6/arch/score/kernel/process.c | 18 --- linux-2.6/arch/sh/Kconfig | 2 linux-2.6/arch/sh/include/asm/thread_info.h | 4 linux-2.6/arch/sh/kernel/idle.c | 102 +---------------- linux-2.6/arch/sh/kernel/smp.c | 2 linux-2.6/arch/sparc/include/asm/thread_info_32.h | 2 linux-2.6/arch/sparc/include/asm/thread_info_64.h | 2 linux-2.6/arch/tile/include/asm/thread_info.h | 2 linux-2.6/arch/tile/kernel/process.c | 61 +--------- linux-2.6/arch/tile/kernel/smpboot.c | 4 linux-2.6/arch/unicore32/Kconfig | 1 linux-2.6/arch/unicore32/kernel/process.c | 21 --- linux-2.6/arch/x86/Kconfig | 1 linux-2.6/arch/x86/include/asm/thread_info.h | 2 linux-2.6/arch/x86/kernel/process.c | 106 +++++------------- linux-2.6/arch/x86/kernel/smpboot.c | 2 linux-2.6/arch/x86/xen/smp.c | 2 linux-2.6/arch/xtensa/Kconfig | 1 linux-2.6/arch/xtensa/kernel/process.c | 14 -- linux-2.6/include/linux/cpu.h | 16 ++ linux-2.6/include/linux/sched.h | 41 +++++++ linux-2.6/init/main.c | 2 linux-2.6/kernel/Makefile | 1 linux-2.6/kernel/cpu/Makefile | 1 linux-2.6/kernel/cpu/idle.c | 115 ++++++++++++++++++++ linux-2.6/kernel/sched/core.c | 5 114 files changed, 432 insertions(+), 1237 deletions(-)