From f0a2bc7e54bb51f64d4c2cd5942ba6018a13d762 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 20 Apr 2012 13:05:56 +0000 Subject: sparc: Use generic idle thread allocation Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: Rusty Russell Cc: Paul E. McKenney Cc: Srivatsa S. Bhat Tested-by: David S. Miller Link: http://lkml.kernel.org/r/20120420124558.055198736@linutronix.de --- arch/sparc/kernel/leon_smp.c | 9 ++------- arch/sparc/kernel/smp_32.c | 10 +++++----- arch/sparc/kernel/smp_64.c | 10 +++------- arch/sparc/kernel/sun4d_smp.c | 8 ++------ arch/sparc/kernel/sun4m_smp.c | 7 ++----- 5 files changed, 14 insertions(+), 30 deletions(-) (limited to 'arch/sparc/kernel') diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index 160cac9c403..b34c93c351b 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -204,16 +204,11 @@ void __init leon_boot_cpus(void) } -int __cpuinit leon_boot_one_cpu(int i) +int __cpuinit leon_boot_one_cpu(int i, struct task_struct *idle) { - - struct task_struct *p; int timeout; - /* Cook up an idler for this guy. */ - p = fork_idle(i); - - current_set[i] = task_thread_info(p); + current_set[i] = task_thread_info(idle); /* See trampoline.S:leon_smp_cpu_startup for details... * Initialize the contexts table diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 1f397ae1102..9028566b3cd 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -413,8 +413,8 @@ void __init smp_prepare_boot_cpu(void) int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) { - extern int __cpuinit smp4m_boot_one_cpu(int); - extern int __cpuinit smp4d_boot_one_cpu(int); + extern int __cpuinit smp4m_boot_one_cpu(int, struct task_struct *); + extern int __cpuinit smp4d_boot_one_cpu(int, struct task_struct *); int ret=0; switch(sparc_cpu_model) { @@ -427,13 +427,13 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) BUG(); break; case sun4m: - ret = smp4m_boot_one_cpu(cpu); + ret = smp4m_boot_one_cpu(cpu, tidle); break; case sun4d: - ret = smp4d_boot_one_cpu(cpu); + ret = smp4d_boot_one_cpu(cpu, tidle); break; case sparc_leon: - ret = leon_boot_one_cpu(cpu); + ret = leon_boot_one_cpu(cpu, tidle); break; case sun4e: printk("SUN4E\n"); diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 2f9948c4107..f591598d92f 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -343,21 +343,17 @@ extern unsigned long sparc64_cpu_startup; */ static struct thread_info *cpu_new_thread = NULL; -static int __cpuinit smp_boot_one_cpu(unsigned int cpu) +static int __cpuinit smp_boot_one_cpu(unsigned int cpu, struct task_struct *idle) { unsigned long entry = (unsigned long)(&sparc64_cpu_startup); unsigned long cookie = (unsigned long)(&cpu_new_thread); - struct task_struct *p; void *descr = NULL; int timeout, ret; - p = fork_idle(cpu); - if (IS_ERR(p)) - return PTR_ERR(p); callin_flag = 0; - cpu_new_thread = task_thread_info(p); + cpu_new_thread = task_thread_info(idle); if (tlb_type == hypervisor) { #if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU) @@ -1229,7 +1225,7 @@ void __devinit smp_fill_in_sib_core_maps(void) int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) { - int ret = smp_boot_one_cpu(cpu); + int ret = smp_boot_one_cpu(cpu, tidle); if (!ret) { cpumask_set_cpu(cpu, &smp_commenced_mask); diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c index 540b2fec09f..4c11030dc1e 100644 --- a/arch/sparc/kernel/sun4d_smp.c +++ b/arch/sparc/kernel/sun4d_smp.c @@ -127,18 +127,14 @@ void __init smp4d_boot_cpus(void) local_flush_cache_all(); } -int __cpuinit smp4d_boot_one_cpu(int i) +int __cpuinit smp4d_boot_one_cpu(int i, struct task_struct *idle) { unsigned long *entry = &sun4d_cpu_startup; - struct task_struct *p; int timeout; int cpu_node; cpu_find_by_instance(i, &cpu_node, NULL); - /* Cook up an idler for this guy. */ - p = fork_idle(i); - current_set[i] = task_thread_info(p); - + current_set[i] = task_thread_info(idle); /* * Initialize the contexts table * Since the call to prom_startcpu() trashes the structure, diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index 02db9a0412c..579427359d4 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -91,18 +91,15 @@ void __init smp4m_boot_cpus(void) local_flush_cache_all(); } -int __cpuinit smp4m_boot_one_cpu(int i) +int __cpuinit smp4m_boot_one_cpu(int i, struct task_struct *idle) { unsigned long *entry = &sun4m_cpu_startup; - struct task_struct *p; int timeout; int cpu_node; cpu_find_by_mid(i, &cpu_node); + current_set[i] = task_thread_info(idle); - /* Cook up an idler for this guy. */ - p = fork_idle(i); - current_set[i] = task_thread_info(p); /* See trampoline.S for details... */ entry += ((i - 1) * 3); -- cgit v1.2.3-70-g09d2