i386: move kernel

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 224 deletions

diff --git a/arch/i386/kernel/msr.c b/arch/i386/kernel/msr.c
deleted file mode 100644
index 0c1069b..0000000
--- a/arch/i386/kernel/msr.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/* ----------------------------------------------------------------------- *
- *   
- *   Copyright 2000 H. Peter Anvin - All Rights Reserved
- *
- *   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, Inc., 675 Mass Ave, Cambridge MA 02139,
- *   USA; either version 2 of the License, or (at your option) any later
- *   version; incorporated herein by reference.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * msr.c
- *
- * x86 MSR access device
- *
- * This device is accessed by lseek() to the appropriate register number
- * and then read/write in chunks of 8 bytes.  A larger size means multiple
- * reads or writes of the same register.
- *
- * This driver uses /dev/cpu/%d/msr where %d is the minor number, and on
- * an SMP box will direct the access to CPU %d.
- */
-
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/major.h>
-#include <linux/fs.h>
-#include <linux/device.h>
-#include <linux/cpu.h>
-#include <linux/notifier.h>
-
-#include <asm/processor.h>
-#include <asm/msr.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-static struct class *msr_class;
-
-static loff_t msr_seek(struct file *file, loff_t offset, int orig)
-{
-	loff_t ret = -EINVAL;
-
-	lock_kernel();
-	switch (orig) {
-	case 0:
-		file->f_pos = offset;
-		ret = file->f_pos;
-		break;
-	case 1:
-		file->f_pos += offset;
-		ret = file->f_pos;
-	}
-	unlock_kernel();
-	return ret;
-}
-
-static ssize_t msr_read(struct file *file, char __user * buf,
-			size_t count, loff_t * ppos)
-{
-	u32 __user *tmp = (u32 __user *) buf;
-	u32 data[2];
-	u32 reg = *ppos;
-	int cpu = iminor(file->f_path.dentry->d_inode);
-	int err;
-
-	if (count % 8)
-		return -EINVAL;	/* Invalid chunk size */
-
-	for (; count; count -= 8) {
-		err = rdmsr_safe_on_cpu(cpu, reg, &data[0], &data[1]);
-		if (err)
-			return -EIO;
-		if (copy_to_user(tmp, &data, 8))
-			return -EFAULT;
-		tmp += 2;
-	}
-
-	return ((char __user *)tmp) - buf;
-}
-
-static ssize_t msr_write(struct file *file, const char __user *buf,
-			 size_t count, loff_t *ppos)
-{
-	const u32 __user *tmp = (const u32 __user *)buf;
-	u32 data[2];
-	u32 reg = *ppos;
-	int cpu = iminor(file->f_path.dentry->d_inode);
-	int err;
-
-	if (count % 8)
-		return -EINVAL;	/* Invalid chunk size */
-
-	for (; count; count -= 8) {
-		if (copy_from_user(&data, tmp, 8))
-			return -EFAULT;
-		err = wrmsr_safe_on_cpu(cpu, reg, data[0], data[1]);
-		if (err)
-			return -EIO;
-		tmp += 2;
-	}
-
-	return ((char __user *)tmp) - buf;
-}
-
-static int msr_open(struct inode *inode, struct file *file)
-{
-	unsigned int cpu = iminor(file->f_path.dentry->d_inode);
-	struct cpuinfo_x86 *c = &(cpu_data)[cpu];
-
-	if (cpu >= NR_CPUS || !cpu_online(cpu))
-		return -ENXIO;	/* No such CPU */
-	if (!cpu_has(c, X86_FEATURE_MSR))
-		return -EIO;	/* MSR not supported */
-
-	return 0;
-}
-
-/*
- * File operations we support
- */
-static const struct file_operations msr_fops = {
-	.owner = THIS_MODULE,
-	.llseek = msr_seek,
-	.read = msr_read,
-	.write = msr_write,
-	.open = msr_open,
-};
-
-static int msr_device_create(int i)
-{
-	int err = 0;
-	struct device *dev;
-
-	dev = device_create(msr_class, NULL, MKDEV(MSR_MAJOR, i), "msr%d",i);
-	if (IS_ERR(dev))
-		err = PTR_ERR(dev);
-	return err;
-}
-
-static int msr_class_cpu_callback(struct notifier_block *nfb,
-				unsigned long action, void *hcpu)
-{
-	unsigned int cpu = (unsigned long)hcpu;
-
-	switch (action) {
-	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
-		msr_device_create(cpu);
-		break;
-	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
-		device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
-		break;
-	}
-	return NOTIFY_OK;
-}
-
-static struct notifier_block __cpuinitdata msr_class_cpu_notifier =
-{
-	.notifier_call = msr_class_cpu_callback,
-};
-
-static int __init msr_init(void)
-{
-	int i, err = 0;
-	i = 0;
-
-	if (register_chrdev(MSR_MAJOR, "cpu/msr", &msr_fops)) {
-		printk(KERN_ERR "msr: unable to get major %d for msr\n",
-		       MSR_MAJOR);
-		err = -EBUSY;
-		goto out;
-	}
-	msr_class = class_create(THIS_MODULE, "msr");
-	if (IS_ERR(msr_class)) {
-		err = PTR_ERR(msr_class);
-		goto out_chrdev;
-	}
-	for_each_online_cpu(i) {
-		err = msr_device_create(i);
-		if (err != 0)
-			goto out_class;
-	}
-	register_hotcpu_notifier(&msr_class_cpu_notifier);
-
-	err = 0;
-	goto out;
-
-out_class:
-	i = 0;
-	for_each_online_cpu(i)
-		device_destroy(msr_class, MKDEV(MSR_MAJOR, i));
-	class_destroy(msr_class);
-out_chrdev:
-	unregister_chrdev(MSR_MAJOR, "cpu/msr");
-out:
-	return err;
-}
-
-static void __exit msr_exit(void)
-{
-	int cpu = 0;
-	for_each_online_cpu(cpu)
-		device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
-	class_destroy(msr_class);
-	unregister_chrdev(MSR_MAJOR, "cpu/msr");
-	unregister_hotcpu_notifier(&msr_class_cpu_notifier);
-}
-
-module_init(msr_init);
-module_exit(msr_exit)
-
-MODULE_AUTHOR("H. Peter Anvin <hpa@zytor.com>");
-MODULE_DESCRIPTION("x86 generic MSR driver");
-MODULE_LICENSE("GPL");