1 files changed, 0 insertions, 248 deletions
diff --git a/ANDROID_3.4.5/arch/x86/kernel/cpu/mcheck/mce-inject.c b/ANDROID_3.4.5/arch/x86/kernel/cpu/mcheck/mce-inject.c
deleted file mode 100644
index fc4beb39..00000000
--- a/ANDROID_3.4.5/arch/x86/kernel/cpu/mcheck/mce-inject.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Machine check injection support.
- * Copyright 2008 Intel Corporation.
- *
- * 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; version 2
- * of the License.
- *
- * Authors:
- * Andi Kleen
- * Ying Huang
- */
-#include <linux/uaccess.h>
-#include <linux/module.h>
-#include <linux/timer.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/preempt.h>
-#include <linux/smp.h>
-#include <linux/notifier.h>
-#include <linux/kdebug.h>
-#include <linux/cpu.h>
-#include <linux/sched.h>
-#include <linux/gfp.h>
-#include <asm/mce.h>
-#include <asm/apic.h>
-#include <asm/nmi.h>
-
-/* Update fake mce registers on current CPU. */
-static void inject_mce(struct mce *m)
-{
-	struct mce *i = &per_cpu(injectm, m->extcpu);
-
-	/* Make sure no one reads partially written injectm */
-	i->finished = 0;
-	mb();
-	m->finished = 0;
-	/* First set the fields after finished */
-	i->extcpu = m->extcpu;
-	mb();
-	/* Now write record in order, finished last (except above) */
-	memcpy(i, m, sizeof(struct mce));
-	/* Finally activate it */
-	mb();
-	i->finished = 1;
-}
-
-static void raise_poll(struct mce *m)
-{
-	unsigned long flags;
-	mce_banks_t b;
-
-	memset(&b, 0xff, sizeof(mce_banks_t));
-	local_irq_save(flags);
-	machine_check_poll(0, &b);
-	local_irq_restore(flags);
-	m->finished = 0;
-}
-
-static void raise_exception(struct mce *m, struct pt_regs *pregs)
-{
-	struct pt_regs regs;
-	unsigned long flags;
-
-	if (!pregs) {
-		memset(&regs, 0, sizeof(struct pt_regs));
-		regs.ip = m->ip;
-		regs.cs = m->cs;
-		pregs = &regs;
-	}
-	/* in mcheck exeception handler, irq will be disabled */
-	local_irq_save(flags);
-	do_machine_check(pregs, 0);
-	local_irq_restore(flags);
-	m->finished = 0;
-}
-
-static cpumask_var_t mce_inject_cpumask;
-
-static int mce_raise_notify(unsigned int cmd, struct pt_regs *regs)
-{
-	int cpu = smp_processor_id();
-	struct mce *m = &__get_cpu_var(injectm);
-	if (!cpumask_test_cpu(cpu, mce_inject_cpumask))
-		return NMI_DONE;
-	cpumask_clear_cpu(cpu, mce_inject_cpumask);
-	if (m->inject_flags & MCJ_EXCEPTION)
-		raise_exception(m, regs);
-	else if (m->status)
-		raise_poll(m);
-	return NMI_HANDLED;
-}
-
-static void mce_irq_ipi(void *info)
-{
-	int cpu = smp_processor_id();
-	struct mce *m = &__get_cpu_var(injectm);
-
-	if (cpumask_test_cpu(cpu, mce_inject_cpumask) &&
-			m->inject_flags & MCJ_EXCEPTION) {
-		cpumask_clear_cpu(cpu, mce_inject_cpumask);
-		raise_exception(m, NULL);
-	}
-}
-
-/* Inject mce on current CPU */
-static int raise_local(void)
-{
-	struct mce *m = &__get_cpu_var(injectm);
-	int context = MCJ_CTX(m->inject_flags);
-	int ret = 0;
-	int cpu = m->extcpu;
-
-	if (m->inject_flags & MCJ_EXCEPTION) {
-		printk(KERN_INFO "Triggering MCE exception on CPU %d\n", cpu);
-		switch (context) {
-		case MCJ_CTX_IRQ:
-			/*
-			 * Could do more to fake interrupts like
-			 * calling irq_enter, but the necessary
-			 * machinery isn't exported currently.
-			 */
-			/*FALL THROUGH*/
-		case MCJ_CTX_PROCESS:
-			raise_exception(m, NULL);
-			break;
-		default:
-			printk(KERN_INFO "Invalid MCE context\n");
-			ret = -EINVAL;
-		}
-		printk(KERN_INFO "MCE exception done on CPU %d\n", cpu);
-	} else if (m->status) {
-		printk(KERN_INFO "Starting machine check poll CPU %d\n", cpu);
-		raise_poll(m);
-		mce_notify_irq();
-		printk(KERN_INFO "Machine check poll done on CPU %d\n", cpu);
-	} else
-		m->finished = 0;
-
-	return ret;
-}
-
-static void raise_mce(struct mce *m)
-{
-	int context = MCJ_CTX(m->inject_flags);
-
-	inject_mce(m);
-
-	if (context == MCJ_CTX_RANDOM)
-		return;
-
-#ifdef CONFIG_X86_LOCAL_APIC
-	if (m->inject_flags & (MCJ_IRQ_BRAODCAST | MCJ_NMI_BROADCAST)) {
-		unsigned long start;
-		int cpu;
-
-		get_online_cpus();
-		cpumask_copy(mce_inject_cpumask, cpu_online_mask);
-		cpumask_clear_cpu(get_cpu(), mce_inject_cpumask);
-		for_each_online_cpu(cpu) {
-			struct mce *mcpu = &per_cpu(injectm, cpu);
-			if (!mcpu->finished ||
-			    MCJ_CTX(mcpu->inject_flags) != MCJ_CTX_RANDOM)
-				cpumask_clear_cpu(cpu, mce_inject_cpumask);
-		}
-		if (!cpumask_empty(mce_inject_cpumask)) {
-			if (m->inject_flags & MCJ_IRQ_BRAODCAST) {
-				/*
-				 * don't wait because mce_irq_ipi is necessary
-				 * to be sync with following raise_local
-				 */
-				preempt_disable();
-				smp_call_function_many(mce_inject_cpumask,
-					mce_irq_ipi, NULL, 0);
-				preempt_enable();
-			} else if (m->inject_flags & MCJ_NMI_BROADCAST)
-				apic->send_IPI_mask(mce_inject_cpumask,
-						NMI_VECTOR);
-		}
-		start = jiffies;
-		while (!cpumask_empty(mce_inject_cpumask)) {
-			if (!time_before(jiffies, start + 2*HZ)) {
-				printk(KERN_ERR
-				"Timeout waiting for mce inject %lx\n",
-					*cpumask_bits(mce_inject_cpumask));
-				break;
-			}
-			cpu_relax();
-		}
-		raise_local();
-		put_cpu();
-		put_online_cpus();
-	} else
-#endif
-		raise_local();
-}
-
-/* Error injection interface */
-static ssize_t mce_write(struct file *filp, const char __user *ubuf,
-			 size_t usize, loff_t *off)
-{
-	struct mce m;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-	/*
-	 * There are some cases where real MSR reads could slip
-	 * through.
-	 */
-	if (!boot_cpu_has(X86_FEATURE_MCE) || !boot_cpu_has(X86_FEATURE_MCA))
-		return -EIO;
-
-	if ((unsigned long)usize > sizeof(struct mce))
-		usize = sizeof(struct mce);
-	if (copy_from_user(&m, ubuf, usize))
-		return -EFAULT;
-
-	if (m.extcpu >= num_possible_cpus() || !cpu_online(m.extcpu))
-		return -EINVAL;
-
-	/*
-	 * Need to give user space some time to set everything up,
-	 * so do it a jiffie or two later everywhere.
-	 */
-	schedule_timeout(2);
-	raise_mce(&m);
-	return usize;
-}
-
-static int inject_init(void)
-{
-	if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL))
-		return -ENOMEM;
-	printk(KERN_INFO "Machine check injector initialized\n");
-	register_mce_write_callback(mce_write);
-	register_nmi_handler(NMI_LOCAL, mce_raise_notify, 0,
-				"mce_notify");
-	return 0;
-}
-
-module_init(inject_init);
-/*
- * Cannot tolerate unloading currently because we cannot
- * guarantee all openers of mce_chrdev will get a reference to us.
- */
-MODULE_LICENSE("GPL");