Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 785 deletions

diff --git a/ANDROID_3.4.5/arch/powerpc/kernel/smp.c b/ANDROID_3.4.5/arch/powerpc/kernel/smp.c
deleted file mode 100644
index d9f94410..00000000
--- a/ANDROID_3.4.5/arch/powerpc/kernel/smp.c
+++ /dev/null
@@ -1,785 +0,0 @@
-/*
- * SMP support for ppc.
- *
- * Written by Cort Dougan (cort@cs.nmt.edu) borrowing a great
- * deal of code from the sparc and intel versions.
- *
- * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
- *
- * PowerPC-64 Support added by Dave Engebretsen, Peter Bergner, and
- * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com
- *
- *      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.
- */
-
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/cache.h>
-#include <linux/err.h>
-#include <linux/device.h>
-#include <linux/cpu.h>
-#include <linux/notifier.h>
-#include <linux/topology.h>
-
-#include <asm/ptrace.h>
-#include <linux/atomic.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/prom.h>
-#include <asm/smp.h>
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/cputhreads.h>
-#include <asm/cputable.h>
-#include <asm/mpic.h>
-#include <asm/vdso_datapage.h>
-#ifdef CONFIG_PPC64
-#include <asm/paca.h>
-#endif
-#include <asm/debug.h>
-
-#ifdef DEBUG
-#include <asm/udbg.h>
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-
-/* Store all idle threads, this can be reused instead of creating
-* a new thread. Also avoids complicated thread destroy functionality
-* for idle threads.
-*/
-#ifdef CONFIG_HOTPLUG_CPU
-/*
- * Needed only for CONFIG_HOTPLUG_CPU because __cpuinitdata is
- * removed after init for !CONFIG_HOTPLUG_CPU.
- */
-static DEFINE_PER_CPU(struct task_struct *, idle_thread_array);
-#define get_idle_for_cpu(x)      (per_cpu(idle_thread_array, x))
-#define set_idle_for_cpu(x, p)   (per_cpu(idle_thread_array, x) = (p))
-
-/* State of each CPU during hotplug phases */
-static DEFINE_PER_CPU(int, cpu_state) = { 0 };
-
-#else
-static struct task_struct *idle_thread_array[NR_CPUS] __cpuinitdata ;
-#define get_idle_for_cpu(x)      (idle_thread_array[(x)])
-#define set_idle_for_cpu(x, p)   (idle_thread_array[(x)] = (p))
-#endif
-
-struct thread_info *secondary_ti;
-
-DEFINE_PER_CPU(cpumask_var_t, cpu_sibling_map);
-DEFINE_PER_CPU(cpumask_var_t, cpu_core_map);
-
-EXPORT_PER_CPU_SYMBOL(cpu_sibling_map);
-EXPORT_PER_CPU_SYMBOL(cpu_core_map);
-
-/* SMP operations for this machine */
-struct smp_ops_t *smp_ops;
-
-/* Can't be static due to PowerMac hackery */
-volatile unsigned int cpu_callin_map[NR_CPUS];
-
-int smt_enabled_at_boot = 1;
-
-static void (*crash_ipi_function_ptr)(struct pt_regs *) = NULL;
-
-#ifdef CONFIG_PPC64
-int __devinit smp_generic_kick_cpu(int nr)
-{
-	BUG_ON(nr < 0 || nr >= NR_CPUS);
-
-	/*
-	 * The processor is currently spinning, waiting for the
-	 * cpu_start field to become non-zero After we set cpu_start,
-	 * the processor will continue on to secondary_start
-	 */
-	if (!paca[nr].cpu_start) {
-		paca[nr].cpu_start = 1;
-		smp_mb();
-		return 0;
-	}
-
-#ifdef CONFIG_HOTPLUG_CPU
-	/*
-	 * Ok it's not there, so it might be soft-unplugged, let's
-	 * try to bring it back
-	 */
-	per_cpu(cpu_state, nr) = CPU_UP_PREPARE;
-	smp_wmb();
-	smp_send_reschedule(nr);
-#endif /* CONFIG_HOTPLUG_CPU */
-
-	return 0;
-}
-#endif /* CONFIG_PPC64 */
-
-static irqreturn_t call_function_action(int irq, void *data)
-{
-	generic_smp_call_function_interrupt();
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t reschedule_action(int irq, void *data)
-{
-	scheduler_ipi();
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t call_function_single_action(int irq, void *data)
-{
-	generic_smp_call_function_single_interrupt();
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t debug_ipi_action(int irq, void *data)
-{
-	if (crash_ipi_function_ptr) {
-		crash_ipi_function_ptr(get_irq_regs());
-		return IRQ_HANDLED;
-	}
-
-#ifdef CONFIG_DEBUGGER
-	debugger_ipi(get_irq_regs());
-#endif /* CONFIG_DEBUGGER */
-
-	return IRQ_HANDLED;
-}
-
-static irq_handler_t smp_ipi_action[] = {
-	[PPC_MSG_CALL_FUNCTION] =  call_function_action,
-	[PPC_MSG_RESCHEDULE] = reschedule_action,
-	[PPC_MSG_CALL_FUNC_SINGLE] = call_function_single_action,
-	[PPC_MSG_DEBUGGER_BREAK] = debug_ipi_action,
-};
-
-const char *smp_ipi_name[] = {
-	[PPC_MSG_CALL_FUNCTION] =  "ipi call function",
-	[PPC_MSG_RESCHEDULE] = "ipi reschedule",
-	[PPC_MSG_CALL_FUNC_SINGLE] = "ipi call function single",
-	[PPC_MSG_DEBUGGER_BREAK] = "ipi debugger",
-};
-
-/* optional function to request ipi, for controllers with >= 4 ipis */
-int smp_request_message_ipi(int virq, int msg)
-{
-	int err;
-
-	if (msg < 0 || msg > PPC_MSG_DEBUGGER_BREAK) {
-		return -EINVAL;
-	}
-#if !defined(CONFIG_DEBUGGER) && !defined(CONFIG_KEXEC)
-	if (msg == PPC_MSG_DEBUGGER_BREAK) {
-		return 1;
-	}
-#endif
-	err = request_irq(virq, smp_ipi_action[msg],
-			  IRQF_PERCPU | IRQF_NO_THREAD,
-			  smp_ipi_name[msg], 0);
-	WARN(err < 0, "unable to request_irq %d for %s (rc %d)\n",
-		virq, smp_ipi_name[msg], err);
-
-	return err;
-}
-
-#ifdef CONFIG_PPC_SMP_MUXED_IPI
-struct cpu_messages {
-	int messages;			/* current messages */
-	unsigned long data;		/* data for cause ipi */
-};
-static DEFINE_PER_CPU_SHARED_ALIGNED(struct cpu_messages, ipi_message);
-
-void smp_muxed_ipi_set_data(int cpu, unsigned long data)
-{
-	struct cpu_messages *info = &per_cpu(ipi_message, cpu);
-
-	info->data = data;
-}
-
-void smp_muxed_ipi_message_pass(int cpu, int msg)
-{
-	struct cpu_messages *info = &per_cpu(ipi_message, cpu);
-	char *message = (char *)&info->messages;
-
-	message[msg] = 1;
-	mb();
-	smp_ops->cause_ipi(cpu, info->data);
-}
-
-irqreturn_t smp_ipi_demux(void)
-{
-	struct cpu_messages *info = &__get_cpu_var(ipi_message);
-	unsigned int all;
-
-	mb();	/* order any irq clear */
-
-	do {
-		all = xchg_local(&info->messages, 0);
-
-#ifdef __BIG_ENDIAN
-		if (all & (1 << (24 - 8 * PPC_MSG_CALL_FUNCTION)))
-			generic_smp_call_function_interrupt();
-		if (all & (1 << (24 - 8 * PPC_MSG_RESCHEDULE)))
-			scheduler_ipi();
-		if (all & (1 << (24 - 8 * PPC_MSG_CALL_FUNC_SINGLE)))
-			generic_smp_call_function_single_interrupt();
-		if (all & (1 << (24 - 8 * PPC_MSG_DEBUGGER_BREAK)))
-			debug_ipi_action(0, NULL);
-#else
-#error Unsupported ENDIAN
-#endif
-	} while (info->messages);
-
-	return IRQ_HANDLED;
-}
-#endif /* CONFIG_PPC_SMP_MUXED_IPI */
-
-static inline void do_message_pass(int cpu, int msg)
-{
-	if (smp_ops->message_pass)
-		smp_ops->message_pass(cpu, msg);
-#ifdef CONFIG_PPC_SMP_MUXED_IPI
-	else
-		smp_muxed_ipi_message_pass(cpu, msg);
-#endif
-}
-
-void smp_send_reschedule(int cpu)
-{
-	if (likely(smp_ops))
-		do_message_pass(cpu, PPC_MSG_RESCHEDULE);
-}
-EXPORT_SYMBOL_GPL(smp_send_reschedule);
-
-void arch_send_call_function_single_ipi(int cpu)
-{
-	do_message_pass(cpu, PPC_MSG_CALL_FUNC_SINGLE);
-}
-
-void arch_send_call_function_ipi_mask(const struct cpumask *mask)
-{
-	unsigned int cpu;
-
-	for_each_cpu(cpu, mask)
-		do_message_pass(cpu, PPC_MSG_CALL_FUNCTION);
-}
-
-#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
-void smp_send_debugger_break(void)
-{
-	int cpu;
-	int me = raw_smp_processor_id();
-
-	if (unlikely(!smp_ops))
-		return;
-
-	for_each_online_cpu(cpu)
-		if (cpu != me)
-			do_message_pass(cpu, PPC_MSG_DEBUGGER_BREAK);
-}
-#endif
-
-#ifdef CONFIG_KEXEC
-void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *))
-{
-	crash_ipi_function_ptr = crash_ipi_callback;
-	if (crash_ipi_callback) {
-		mb();
-		smp_send_debugger_break();
-	}
-}
-#endif
-
-static void stop_this_cpu(void *dummy)
-{
-	/* Remove this CPU */
-	set_cpu_online(smp_processor_id(), false);
-
-	local_irq_disable();
-	while (1)
-		;
-}
-
-void smp_send_stop(void)
-{
-	smp_call_function(stop_this_cpu, NULL, 0);
-}
-
-struct thread_info *current_set[NR_CPUS];
-
-static void __devinit smp_store_cpu_info(int id)
-{
-	per_cpu(cpu_pvr, id) = mfspr(SPRN_PVR);
-#ifdef CONFIG_PPC_FSL_BOOK3E
-	per_cpu(next_tlbcam_idx, id)
-		= (mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) - 1;
-#endif
-}
-
-void __init smp_prepare_cpus(unsigned int max_cpus)
-{
-	unsigned int cpu;
-
-	DBG("smp_prepare_cpus\n");
-
-	/* 
-	 * setup_cpu may need to be called on the boot cpu. We havent
-	 * spun any cpus up but lets be paranoid.
-	 */
-	BUG_ON(boot_cpuid != smp_processor_id());
-
-	/* Fixup boot cpu */
-	smp_store_cpu_info(boot_cpuid);
-	cpu_callin_map[boot_cpuid] = 1;
-
-	for_each_possible_cpu(cpu) {
-		zalloc_cpumask_var_node(&per_cpu(cpu_sibling_map, cpu),
-					GFP_KERNEL, cpu_to_node(cpu));
-		zalloc_cpumask_var_node(&per_cpu(cpu_core_map, cpu),
-					GFP_KERNEL, cpu_to_node(cpu));
-	}
-
-	cpumask_set_cpu(boot_cpuid, cpu_sibling_mask(boot_cpuid));
-	cpumask_set_cpu(boot_cpuid, cpu_core_mask(boot_cpuid));
-
-	if (smp_ops)
-		if (smp_ops->probe)
-			max_cpus = smp_ops->probe();
-		else
-			max_cpus = NR_CPUS;
-	else
-		max_cpus = 1;
-}
-
-void __devinit smp_prepare_boot_cpu(void)
-{
-	BUG_ON(smp_processor_id() != boot_cpuid);
-#ifdef CONFIG_PPC64
-	paca[boot_cpuid].__current = current;
-#endif
-	current_set[boot_cpuid] = task_thread_info(current);
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-int generic_cpu_disable(void)
-{
-	unsigned int cpu = smp_processor_id();
-
-	if (cpu == boot_cpuid)
-		return -EBUSY;
-
-	set_cpu_online(cpu, false);
-#ifdef CONFIG_PPC64
-	vdso_data->processorCount--;
-#endif
-	migrate_irqs();
-	return 0;
-}
-
-void generic_cpu_die(unsigned int cpu)
-{
-	int i;
-
-	for (i = 0; i < 100; i++) {
-		smp_rmb();
-		if (per_cpu(cpu_state, cpu) == CPU_DEAD)
-			return;
-		msleep(100);
-	}
-	printk(KERN_ERR "CPU%d didn't die...\n", cpu);
-}
-
-void generic_mach_cpu_die(void)
-{
-	unsigned int cpu;
-
-	local_irq_disable();
-	idle_task_exit();
-	cpu = smp_processor_id();
-	printk(KERN_DEBUG "CPU%d offline\n", cpu);
-	__get_cpu_var(cpu_state) = CPU_DEAD;
-	smp_wmb();
-	while (__get_cpu_var(cpu_state) != CPU_UP_PREPARE)
-		cpu_relax();
-}
-
-void generic_set_cpu_dead(unsigned int cpu)
-{
-	per_cpu(cpu_state, cpu) = CPU_DEAD;
-}
-
-int generic_check_cpu_restart(unsigned int cpu)
-{
-	return per_cpu(cpu_state, cpu) == CPU_UP_PREPARE;
-}
-#endif
-
-struct create_idle {
-	struct work_struct work;
-	struct task_struct *idle;
-	struct completion done;
-	int cpu;
-};
-
-static void __cpuinit do_fork_idle(struct work_struct *work)
-{
-	struct create_idle *c_idle =
-		container_of(work, struct create_idle, work);
-
-	c_idle->idle = fork_idle(c_idle->cpu);
-	complete(&c_idle->done);
-}
-
-static int __cpuinit create_idle(unsigned int cpu)
-{
-	struct thread_info *ti;
-	struct create_idle c_idle = {
-		.cpu	= cpu,
-		.done	= COMPLETION_INITIALIZER_ONSTACK(c_idle.done),
-	};
-	INIT_WORK_ONSTACK(&c_idle.work, do_fork_idle);
-
-	c_idle.idle = get_idle_for_cpu(cpu);
-
-	/* We can't use kernel_thread since we must avoid to
-	 * reschedule the child. We use a workqueue because
-	 * we want to fork from a kernel thread, not whatever
-	 * userspace process happens to be trying to online us.
-	 */
-	if (!c_idle.idle) {
-		schedule_work(&c_idle.work);
-		wait_for_completion(&c_idle.done);
-	} else
-		init_idle(c_idle.idle, cpu);
-	if (IS_ERR(c_idle.idle)) {		
-		pr_err("Failed fork for CPU %u: %li", cpu, PTR_ERR(c_idle.idle));
-		return PTR_ERR(c_idle.idle);
-	}
-	ti = task_thread_info(c_idle.idle);
-
-#ifdef CONFIG_PPC64
-	paca[cpu].__current = c_idle.idle;
-	paca[cpu].kstack = (unsigned long)ti + THREAD_SIZE - STACK_FRAME_OVERHEAD;
-#endif
-	ti->cpu = cpu;
-	current_set[cpu] = ti;
-
-	return 0;
-}
-
-int __cpuinit __cpu_up(unsigned int cpu)
-{
-	int rc, c;
-
-	if (smp_ops == NULL ||
-	    (smp_ops->cpu_bootable && !smp_ops->cpu_bootable(cpu)))
-		return -EINVAL;
-
-	/* Make sure we have an idle thread */
-	rc = create_idle(cpu);
-	if (rc)
-		return rc;
-
-	secondary_ti = current_set[cpu];
-
-	/* Make sure callin-map entry is 0 (can be leftover a CPU
-	 * hotplug
-	 */
-	cpu_callin_map[cpu] = 0;
-
-	/* The information for processor bringup must
-	 * be written out to main store before we release
-	 * the processor.
-	 */
-	smp_mb();
-
-	/* wake up cpus */
-	DBG("smp: kicking cpu %d\n", cpu);
-	rc = smp_ops->kick_cpu(cpu);
-	if (rc) {
-		pr_err("smp: failed starting cpu %d (rc %d)\n", cpu, rc);
-		return rc;
-	}
-
-	/*
-	 * wait to see if the cpu made a callin (is actually up).
-	 * use this value that I found through experimentation.
-	 * -- Cort
-	 */
-	if (system_state < SYSTEM_RUNNING)
-		for (c = 50000; c && !cpu_callin_map[cpu]; c--)
-			udelay(100);
-#ifdef CONFIG_HOTPLUG_CPU
-	else
-		/*
-		 * CPUs can take much longer to come up in the
-		 * hotplug case.  Wait five seconds.
-		 */
-		for (c = 5000; c && !cpu_callin_map[cpu]; c--)
-			msleep(1);
-#endif
-
-	if (!cpu_callin_map[cpu]) {
-		printk(KERN_ERR "Processor %u is stuck.\n", cpu);
-		return -ENOENT;
-	}
-
-	DBG("Processor %u found.\n", cpu);
-
-	if (smp_ops->give_timebase)
-		smp_ops->give_timebase();
-
-	/* Wait until cpu puts itself in the online map */
-	while (!cpu_online(cpu))
-		cpu_relax();
-
-	return 0;
-}
-
-/* Return the value of the reg property corresponding to the given
- * logical cpu.
- */
-int cpu_to_core_id(int cpu)
-{
-	struct device_node *np;
-	const int *reg;
-	int id = -1;
-
-	np = of_get_cpu_node(cpu, NULL);
-	if (!np)
-		goto out;
-
-	reg = of_get_property(np, "reg", NULL);
-	if (!reg)
-		goto out;
-
-	id = *reg;
-out:
-	of_node_put(np);
-	return id;
-}
-
-/* Helper routines for cpu to core mapping */
-int cpu_core_index_of_thread(int cpu)
-{
-	return cpu >> threads_shift;
-}
-EXPORT_SYMBOL_GPL(cpu_core_index_of_thread);
-
-int cpu_first_thread_of_core(int core)
-{
-	return core << threads_shift;
-}
-EXPORT_SYMBOL_GPL(cpu_first_thread_of_core);
-
-/* Must be called when no change can occur to cpu_present_mask,
- * i.e. during cpu online or offline.
- */
-static struct device_node *cpu_to_l2cache(int cpu)
-{
-	struct device_node *np;
-	struct device_node *cache;
-
-	if (!cpu_present(cpu))
-		return NULL;
-
-	np = of_get_cpu_node(cpu, NULL);
-	if (np == NULL)
-		return NULL;
-
-	cache = of_find_next_cache_node(np);
-
-	of_node_put(np);
-
-	return cache;
-}
-
-/* Activate a secondary processor. */
-void __devinit start_secondary(void *unused)
-{
-	unsigned int cpu = smp_processor_id();
-	struct device_node *l2_cache;
-	int i, base;
-
-	atomic_inc(&init_mm.mm_count);
-	current->active_mm = &init_mm;
-
-	smp_store_cpu_info(cpu);
-	set_dec(tb_ticks_per_jiffy);
-	preempt_disable();
-	cpu_callin_map[cpu] = 1;
-
-	if (smp_ops->setup_cpu)
-		smp_ops->setup_cpu(cpu);
-	if (smp_ops->take_timebase)
-		smp_ops->take_timebase();
-
-	secondary_cpu_time_init();
-
-#ifdef CONFIG_PPC64
-	if (system_state == SYSTEM_RUNNING)
-		vdso_data->processorCount++;
-#endif
-	ipi_call_lock();
-	notify_cpu_starting(cpu);
-	set_cpu_online(cpu, true);
-	/* Update sibling maps */
-	base = cpu_first_thread_sibling(cpu);
-	for (i = 0; i < threads_per_core; i++) {
-		if (cpu_is_offline(base + i))
-			continue;
-		cpumask_set_cpu(cpu, cpu_sibling_mask(base + i));
-		cpumask_set_cpu(base + i, cpu_sibling_mask(cpu));
-
-		/* cpu_core_map should be a superset of
-		 * cpu_sibling_map even if we don't have cache
-		 * information, so update the former here, too.
-		 */
-		cpumask_set_cpu(cpu, cpu_core_mask(base + i));
-		cpumask_set_cpu(base + i, cpu_core_mask(cpu));
-	}
-	l2_cache = cpu_to_l2cache(cpu);
-	for_each_online_cpu(i) {
-		struct device_node *np = cpu_to_l2cache(i);
-		if (!np)
-			continue;
-		if (np == l2_cache) {
-			cpumask_set_cpu(cpu, cpu_core_mask(i));
-			cpumask_set_cpu(i, cpu_core_mask(cpu));
-		}
-		of_node_put(np);
-	}
-	of_node_put(l2_cache);
-	ipi_call_unlock();
-
-	local_irq_enable();
-
-	cpu_idle();
-
-	BUG();
-}
-
-int setup_profiling_timer(unsigned int multiplier)
-{
-	return 0;
-}
-
-void __init smp_cpus_done(unsigned int max_cpus)
-{
-	cpumask_var_t old_mask;
-
-	/* We want the setup_cpu() here to be called from CPU 0, but our
-	 * init thread may have been "borrowed" by another CPU in the meantime
-	 * se we pin us down to CPU 0 for a short while
-	 */
-	alloc_cpumask_var(&old_mask, GFP_NOWAIT);
-	cpumask_copy(old_mask, tsk_cpus_allowed(current));
-	set_cpus_allowed_ptr(current, cpumask_of(boot_cpuid));
-	
-	if (smp_ops && smp_ops->setup_cpu)
-		smp_ops->setup_cpu(boot_cpuid);
-
-	set_cpus_allowed_ptr(current, old_mask);
-
-	free_cpumask_var(old_mask);
-
-	if (smp_ops && smp_ops->bringup_done)
-		smp_ops->bringup_done();
-
-	dump_numa_cpu_topology();
-
-}
-
-int arch_sd_sibling_asym_packing(void)
-{
-	if (cpu_has_feature(CPU_FTR_ASYM_SMT)) {
-		printk_once(KERN_INFO "Enabling Asymmetric SMT scheduling\n");
-		return SD_ASYM_PACKING;
-	}
-	return 0;
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-int __cpu_disable(void)
-{
-	struct device_node *l2_cache;
-	int cpu = smp_processor_id();
-	int base, i;
-	int err;
-
-	if (!smp_ops->cpu_disable)
-		return -ENOSYS;
-
-	err = smp_ops->cpu_disable();
-	if (err)
-		return err;
-
-	/* Update sibling maps */
-	base = cpu_first_thread_sibling(cpu);
-	for (i = 0; i < threads_per_core; i++) {
-		cpumask_clear_cpu(cpu, cpu_sibling_mask(base + i));
-		cpumask_clear_cpu(base + i, cpu_sibling_mask(cpu));
-		cpumask_clear_cpu(cpu, cpu_core_mask(base + i));
-		cpumask_clear_cpu(base + i, cpu_core_mask(cpu));
-	}
-
-	l2_cache = cpu_to_l2cache(cpu);
-	for_each_present_cpu(i) {
-		struct device_node *np = cpu_to_l2cache(i);
-		if (!np)
-			continue;
-		if (np == l2_cache) {
-			cpumask_clear_cpu(cpu, cpu_core_mask(i));
-			cpumask_clear_cpu(i, cpu_core_mask(cpu));
-		}
-		of_node_put(np);
-	}
-	of_node_put(l2_cache);
-
-
-	return 0;
-}
-
-void __cpu_die(unsigned int cpu)
-{
-	if (smp_ops->cpu_die)
-		smp_ops->cpu_die(cpu);
-}
-
-static DEFINE_MUTEX(powerpc_cpu_hotplug_driver_mutex);
-
-void cpu_hotplug_driver_lock()
-{
-	mutex_lock(&powerpc_cpu_hotplug_driver_mutex);
-}
-
-void cpu_hotplug_driver_unlock()
-{
-	mutex_unlock(&powerpc_cpu_hotplug_driver_mutex);
-}
-
-void cpu_die(void)
-{
-	if (ppc_md.cpu_die)
-		ppc_md.cpu_die();
-
-	/* If we return, we re-enter start_secondary */
-	start_secondary_resume();
-}
-
-#endif