i386: move kernel/cpu/cpufreq

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

1 files changed, 0 insertions, 256 deletions

diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k6.c b/arch/i386/kernel/cpu/cpufreq/powernow-k6.c
deleted file mode 100644
index f89524051e4..00000000000
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k6.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- *  This file was based upon code in Powertweak Linux (http://powertweak.sf.net)
- *  (C) 2000-2003  Dave Jones, Arjan van de Ven, Janne Pänkälä, Dominik Brodowski.
- *
- *  Licensed under the terms of the GNU GPL License version 2.
- *
- *  BIG FAT DISCLAIMER: Work in progress code. Possibly *dangerous*
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/cpufreq.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-
-#include <asm/msr.h>
-#include <asm/timex.h>
-#include <asm/io.h>
-
-
-#define POWERNOW_IOPORT 0xfff0         /* it doesn't matter where, as long
-					  as it is unused */
-
-static unsigned int                     busfreq;   /* FSB, in 10 kHz */
-static unsigned int                     max_multiplier;
-
-
-/* Clock ratio multiplied by 10 - see table 27 in AMD#23446 */
-static struct cpufreq_frequency_table clock_ratio[] = {
-	{45,  /* 000 -> 4.5x */ 0},
-	{50,  /* 001 -> 5.0x */ 0},
-	{40,  /* 010 -> 4.0x */ 0},
-	{55,  /* 011 -> 5.5x */ 0},
-	{20,  /* 100 -> 2.0x */ 0},
-	{30,  /* 101 -> 3.0x */ 0},
-	{60,  /* 110 -> 6.0x */ 0},
-	{35,  /* 111 -> 3.5x */ 0},
-	{0, CPUFREQ_TABLE_END}
-};
-
-
-/**
- * powernow_k6_get_cpu_multiplier - returns the current FSB multiplier
- *
- *   Returns the current setting of the frequency multiplier. Core clock
- * speed is frequency of the Front-Side Bus multiplied with this value.
- */
-static int powernow_k6_get_cpu_multiplier(void)
-{
-	u64             invalue = 0;
-	u32             msrval;
-
-	msrval = POWERNOW_IOPORT + 0x1;
-	wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */
-	invalue=inl(POWERNOW_IOPORT + 0x8);
-	msrval = POWERNOW_IOPORT + 0x0;
-	wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */
-
-	return clock_ratio[(invalue >> 5)&7].index;
-}
-
-
-/**
- * powernow_k6_set_state - set the PowerNow! multiplier
- * @best_i: clock_ratio[best_i] is the target multiplier
- *
- *   Tries to change the PowerNow! multiplier
- */
-static void powernow_k6_set_state (unsigned int best_i)
-{
-	unsigned long           outvalue=0, invalue=0;
-	unsigned long           msrval;
-	struct cpufreq_freqs    freqs;
-
-	if (clock_ratio[best_i].index > max_multiplier) {
-		printk(KERN_ERR "cpufreq: invalid target frequency\n");
-		return;
-	}
-
-	freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
-	freqs.new = busfreq * clock_ratio[best_i].index;
-	freqs.cpu = 0; /* powernow-k6.c is UP only driver */
-
-	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
-	/* we now need to transform best_i to the BVC format, see AMD#23446 */
-
-	outvalue = (1<<12) | (1<<10) | (1<<9) | (best_i<<5);
-
-	msrval = POWERNOW_IOPORT + 0x1;
-	wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */
-	invalue=inl(POWERNOW_IOPORT + 0x8);
-	invalue = invalue & 0xf;
-	outvalue = outvalue | invalue;
-	outl(outvalue ,(POWERNOW_IOPORT + 0x8));
-	msrval = POWERNOW_IOPORT + 0x0;
-	wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */
-
-	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
-	return;
-}
-
-
-/**
- * powernow_k6_verify - verifies a new CPUfreq policy
- * @policy: new policy
- *
- * Policy must be within lowest and highest possible CPU Frequency,
- * and at least one possible state must be within min and max.
- */
-static int powernow_k6_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &clock_ratio[0]);
-}
-
-
-/**
- * powernow_k6_setpolicy - sets a new CPUFreq policy
- * @policy: new policy
- * @target_freq: the target frequency
- * @relation: how that frequency relates to achieved frequency (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
- *
- * sets a new CPUFreq policy
- */
-static int powernow_k6_target (struct cpufreq_policy *policy,
-			       unsigned int target_freq,
-			       unsigned int relation)
-{
-	unsigned int    newstate = 0;
-
-	if (cpufreq_frequency_table_target(policy, &clock_ratio[0], target_freq, relation, &newstate))
-		return -EINVAL;
-
-	powernow_k6_set_state(newstate);
-
-	return 0;
-}
-
-
-static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
-{
-	unsigned int i;
-	int result;
-
-	if (policy->cpu != 0)
-		return -ENODEV;
-
-	/* get frequencies */
-	max_multiplier = powernow_k6_get_cpu_multiplier();
-	busfreq = cpu_khz / max_multiplier;
-
-	/* table init */
-	for (i=0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
-		if (clock_ratio[i].index > max_multiplier)
-			clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID;
-		else
-			clock_ratio[i].frequency = busfreq * clock_ratio[i].index;
-	}
-
-	/* cpuinfo and default policy values */
-	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
-	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	policy->cur = busfreq * max_multiplier;
-
-	result = cpufreq_frequency_table_cpuinfo(policy, clock_ratio);
-	if (result)
-		return (result);
-
-	cpufreq_frequency_table_get_attr(clock_ratio, policy->cpu);
-
-	return 0;
-}
-
-
-static int powernow_k6_cpu_exit(struct cpufreq_policy *policy)
-{
-	unsigned int i;
-	for (i=0; i<8; i++) {
-		if (i==max_multiplier)
-			powernow_k6_set_state(i);
-	}
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static unsigned int powernow_k6_get(unsigned int cpu)
-{
-	return busfreq * powernow_k6_get_cpu_multiplier();
-}
-
-static struct freq_attr* powernow_k6_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-static struct cpufreq_driver powernow_k6_driver = {
-	.verify		= powernow_k6_verify,
-	.target		= powernow_k6_target,
-	.init		= powernow_k6_cpu_init,
-	.exit		= powernow_k6_cpu_exit,
-	.get		= powernow_k6_get,
-	.name		= "powernow-k6",
-	.owner		= THIS_MODULE,
-	.attr		= powernow_k6_attr,
-};
-
-
-/**
- * powernow_k6_init - initializes the k6 PowerNow! CPUFreq driver
- *
- *   Initializes the K6 PowerNow! support. Returns -ENODEV on unsupported
- * devices, -EINVAL or -ENOMEM on problems during initiatization, and zero
- * on success.
- */
-static int __init powernow_k6_init(void)
-{
-	struct cpuinfo_x86      *c = cpu_data;
-
-	if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 != 5) ||
-		((c->x86_model != 12) && (c->x86_model != 13)))
-		return -ENODEV;
-
-	if (!request_region(POWERNOW_IOPORT, 16, "PowerNow!")) {
-		printk("cpufreq: PowerNow IOPORT region already used.\n");
-		return -EIO;
-	}
-
-	if (cpufreq_register_driver(&powernow_k6_driver)) {
-		release_region (POWERNOW_IOPORT, 16);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-
-/**
- * powernow_k6_exit - unregisters AMD K6-2+/3+ PowerNow! support
- *
- *   Unregisters AMD K6-2+ / K6-3+ PowerNow! support.
- */
-static void __exit powernow_k6_exit(void)
-{
-	cpufreq_unregister_driver(&powernow_k6_driver);
-	release_region (POWERNOW_IOPORT, 16);
-}
-
-
-MODULE_AUTHOR ("Arjan van de Ven <arjanv@redhat.com>, Dave Jones <davej@codemonkey.org.uk>, Dominik Brodowski <linux@brodo.de>");
-MODULE_DESCRIPTION ("PowerNow! driver for AMD K6-2+ / K6-3+ processors.");
-MODULE_LICENSE ("GPL");
-
-module_init(powernow_k6_init);
-module_exit(powernow_k6_exit);