From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gleixner Subject: [patch 11/18] hexagon: Use generic idle thread allocation Date: Fri, 20 Apr 2012 13:05:51 -0000 Message-ID: <20120420124557.581762105@linutronix.de> References: <20120420122120.097464672@linutronix.de> Return-path: Content-Disposition: inline; filename=hexagon-use-generic-idle-thread-allocation.patch Sender: linux-kernel-owner@vger.kernel.org To: LKML Cc: linux-arch@vger.kernel.org, Peter Zijlstra , Rusty Russell , "Paul E. McKenney" , Ingo Molnar , "Srivatsa S. Bhat" , Richard Kuo List-Id: linux-arch.vger.kernel.org Signed-off-by: Thomas Gleixner Cc: Richard Kuo --- arch/hexagon/Kconfig | 1 + arch/hexagon/kernel/smp.c | 11 ++--------- 2 files changed, 3 insertions(+), 9 deletions(-) Index: linux-2.6/arch/hexagon/Kconfig =================================================================== --- linux-2.6.orig/arch/hexagon/Kconfig +++ linux-2.6/arch/hexagon/Kconfig @@ -27,6 +27,7 @@ config HEXAGON select HAVE_ARCH_TRACEHOOK select NO_IOPORT select GENERIC_IOMAP + select GENERIC_SMP_IDLE_THREAD # mostly generic routines, with some accelerated ones ---help--- Qualcomm Hexagon is a processor architecture designed for high Index: linux-2.6/arch/hexagon/kernel/smp.c =================================================================== --- linux-2.6.orig/arch/hexagon/kernel/smp.c +++ linux-2.6/arch/hexagon/kernel/smp.c @@ -190,18 +190,11 @@ void __cpuinit start_secondary(void) * maintains control until "cpu_online(cpu)" is set. */ -int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) +int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle) { - struct task_struct *idle; - struct thread_info *thread; + struct thread_info *thread = (struct thread_info *)idle->stack; void *stack_start; - /* Create new init task for the CPU */ - idle = fork_idle(cpu); - if (IS_ERR(idle)) - panic(KERN_ERR "fork_idle failed\n"); - - thread = (struct thread_info *)idle->stack; thread->cpu = cpu; /* Boot to the head. */ From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from www.linutronix.de ([62.245.132.108]:44765 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751725Ab2DTNFy (ORCPT ); Fri, 20 Apr 2012 09:05:54 -0400 Message-ID: <20120420124557.581762105@linutronix.de> Date: Fri, 20 Apr 2012 13:05:51 -0000 From: Thomas Gleixner Subject: [patch 11/18] hexagon: Use generic idle thread allocation References: <20120420122120.097464672@linutronix.de> Content-Disposition: inline; filename=hexagon-use-generic-idle-thread-allocation.patch Sender: linux-arch-owner@vger.kernel.org List-ID: To: LKML Cc: linux-arch@vger.kernel.org, Peter Zijlstra , Rusty Russell , "Paul E. McKenney" , Ingo Molnar , "Srivatsa S. Bhat" , Richard Kuo Message-ID: <20120420130551.z22bZ_gE9XI4mpnMMv97vDmT_w7uod3PEJa1mklYAD0@z> Signed-off-by: Thomas Gleixner Cc: Richard Kuo --- arch/hexagon/Kconfig | 1 + arch/hexagon/kernel/smp.c | 11 ++--------- 2 files changed, 3 insertions(+), 9 deletions(-) Index: linux-2.6/arch/hexagon/Kconfig =================================================================== --- linux-2.6.orig/arch/hexagon/Kconfig +++ linux-2.6/arch/hexagon/Kconfig @@ -27,6 +27,7 @@ config HEXAGON select HAVE_ARCH_TRACEHOOK select NO_IOPORT select GENERIC_IOMAP + select GENERIC_SMP_IDLE_THREAD # mostly generic routines, with some accelerated ones ---help--- Qualcomm Hexagon is a processor architecture designed for high Index: linux-2.6/arch/hexagon/kernel/smp.c =================================================================== --- linux-2.6.orig/arch/hexagon/kernel/smp.c +++ linux-2.6/arch/hexagon/kernel/smp.c @@ -190,18 +190,11 @@ void __cpuinit start_secondary(void) * maintains control until "cpu_online(cpu)" is set. */ -int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) +int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle) { - struct task_struct *idle; - struct thread_info *thread; + struct thread_info *thread = (struct thread_info *)idle->stack; void *stack_start; - /* Create new init task for the CPU */ - idle = fork_idle(cpu); - if (IS_ERR(idle)) - panic(KERN_ERR "fork_idle failed\n"); - - thread = (struct thread_info *)idle->stack; thread->cpu = cpu; /* Boot to the head. */