[deliverable/linux.git] / drivers / cpufreq / powernow-k6.c

/*
 *  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/timex.h>
#include <linux/io.h>

#include <asm/cpu_device_id.h>
#include <asm/msr.h>

#define POWERNOW_IOPORT 0xfff0          /* it doesn't matter where, as long
					   as it is unused */

#define PFX "powernow-k6: "
static unsigned int                     busfreq;   /* FSB, in 10 kHz */
static unsigned int                     max_multiplier;

static unsigned int			param_busfreq = 0;
static unsigned int			param_max_multiplier = 0;

module_param_named(max_multiplier, param_max_multiplier, uint, S_IRUGO);
MODULE_PARM_DESC(max_multiplier, "Maximum multiplier (allowed values: 20 30 35 40 45 50 55 60)");

module_param_named(bus_frequency, param_busfreq, uint, S_IRUGO);
MODULE_PARM_DESC(bus_frequency, "Bus frequency in kHz");

/* 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}
};

static const struct {
	unsigned freq;
	unsigned mult;
} usual_frequency_table[] = {
	{ 400000, 40 },	// 100   * 4
	{ 450000, 45 }, // 100   * 4.5
	{ 475000, 50 }, //  95   * 5
	{ 500000, 50 }, // 100   * 5
	{ 506250, 45 }, // 112.5 * 4.5
	{ 533500, 55 }, //  97   * 5.5
	{ 550000, 55 }, // 100   * 5.5
	{ 562500, 50 }, // 112.5 * 5
	{ 570000, 60 }, //  95   * 6
	{ 600000, 60 }, // 100   * 6
	{ 618750, 55 }, // 112.5 * 5.5
	{ 660000, 55 }, // 120   * 5.5
	{ 675000, 60 }, // 112.5 * 6
	{ 720000, 60 }, // 120   * 6
};

#define FREQ_RANGE		3000

/**
 * 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)
{
	unsigned long invalue = 0;
	u32 msrval;

	local_irq_disable();

	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 */

	local_irq_enable();

	return clock_ratio[(invalue >> 5)&7].driver_data;
}

static void powernow_k6_set_cpu_multiplier(unsigned int best_i)
{
	unsigned long outvalue, invalue;
	unsigned long msrval;
	unsigned long cr0;

	/* we now need to transform best_i to the BVC format, see AMD#23446 */

	/*
	 * The processor doesn't respond to inquiry cycles while changing the
	 * frequency, so we must disable cache.
	 */
	local_irq_disable();
	cr0 = read_cr0();
	write_cr0(cr0 | X86_CR0_CD);
	wbinvd();

	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 & 0x1f;
	outvalue = outvalue | invalue;
	outl(outvalue, (POWERNOW_IOPORT + 0x8));
	msrval = POWERNOW_IOPORT + 0x0;
	wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */

	write_cr0(cr0);
	local_irq_enable();
}

/**
 * powernow_k6_target - set the PowerNow! multiplier
 * @best_i: clock_ratio[best_i] is the target multiplier
 *
 *   Tries to change the PowerNow! multiplier
 */
static int powernow_k6_target(struct cpufreq_policy *policy,
		unsigned int best_i)
{
	struct cpufreq_freqs freqs;

	if (clock_ratio[best_i].driver_data > max_multiplier) {
		printk(KERN_ERR PFX "invalid target frequency\n");
		return -EINVAL;
	}

	freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
	freqs.new = busfreq * clock_ratio[best_i].driver_data;

	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

	powernow_k6_set_cpu_multiplier(best_i);

	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);

	return 0;
}

static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
{
	unsigned int i, f;
	unsigned khz;

	if (policy->cpu != 0)
		return -ENODEV;

	max_multiplier = 0;
	khz = cpu_khz;
	for (i = 0; i < ARRAY_SIZE(usual_frequency_table); i++) {
		if (khz >= usual_frequency_table[i].freq - FREQ_RANGE &&
		    khz <= usual_frequency_table[i].freq + FREQ_RANGE) {
			khz = usual_frequency_table[i].freq;
			max_multiplier = usual_frequency_table[i].mult;
			break;
		}
	}
	if (param_max_multiplier) {
		for (i = 0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
			if (clock_ratio[i].driver_data == param_max_multiplier) {
				max_multiplier = param_max_multiplier;
				goto have_max_multiplier;
			}
		}
		printk(KERN_ERR "powernow-k6: invalid max_multiplier parameter, valid parameters 20, 30, 35, 40, 45, 50, 55, 60\n");
		return -EINVAL;
	}

	if (!max_multiplier) {
		printk(KERN_WARNING "powernow-k6: unknown frequency %u, cannot determine current multiplier\n", khz);
		printk(KERN_WARNING "powernow-k6: use module parameters max_multiplier and bus_frequency\n");
		return -EOPNOTSUPP;
	}

have_max_multiplier:
	param_max_multiplier = max_multiplier;

	if (param_busfreq) {
		if (param_busfreq >= 50000 && param_busfreq <= 150000) {
			busfreq = param_busfreq / 10;
			goto have_busfreq;
		}
		printk(KERN_ERR "powernow-k6: invalid bus_frequency parameter, allowed range 50000 - 150000 kHz\n");
		return -EINVAL;
	}

	busfreq = khz / max_multiplier;
have_busfreq:
	param_busfreq = busfreq * 10;

	/* table init */
	for (i = 0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
		f = clock_ratio[i].driver_data;
		if (f > max_multiplier)
			clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID;
		else
			clock_ratio[i].frequency = busfreq * f;
	}

	/* cpuinfo and default policy values */
	policy->cpuinfo.transition_latency = 500000;

	return cpufreq_table_validate_and_show(policy, clock_ratio);
}


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_target(policy, i);
	}
	cpufreq_frequency_table_put_attr(policy->cpu);
	return 0;
}

static unsigned int powernow_k6_get(unsigned int cpu)
{
	unsigned int ret;
	ret = (busfreq * powernow_k6_get_cpu_multiplier());
	return ret;
}

static struct cpufreq_driver powernow_k6_driver = {
	.verify		= cpufreq_generic_frequency_table_verify,
	.target_index	= powernow_k6_target,
	.init		= powernow_k6_cpu_init,
	.exit		= powernow_k6_cpu_exit,
	.get		= powernow_k6_get,
	.name		= "powernow-k6",
	.attr		= cpufreq_generic_attr,
};

static const struct x86_cpu_id powernow_k6_ids[] = {
	{ X86_VENDOR_AMD, 5, 12 },
	{ X86_VENDOR_AMD, 5, 13 },
	{}
};
MODULE_DEVICE_TABLE(x86cpu, powernow_k6_ids);

/**
 * 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)
{
	if (!x86_match_cpu(powernow_k6_ids))
		return -ENODEV;

	if (!request_region(POWERNOW_IOPORT, 16, "PowerNow!")) {
		printk(KERN_INFO PFX "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, Dave Jones <davej@redhat.com>, "
		"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);
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	* This file was based upon code in Powertweak Linux (http://powertweak.sf.net)
14a6650f DJ	3	* (C) 2000-2003 Dave Jones, Arjan van de Ven, Janne Pänkälä,
14a6650f DJ	4	* Dominik Brodowski.
1da177e4 LT	5	*
	6	* Licensed under the terms of the GNU GPL License version 2.
	7	*
	8	* BIG FAT DISCLAIMER: Work in progress code. Possibly dangerous
	9	*/
	10
	11	#include <linux/kernel.h>
32ee8c3e	12	#include <linux/module.h>
1da177e4 LT	13	#include <linux/init.h>
	14	#include <linux/cpufreq.h>
	15	#include <linux/ioport.h>
8d2d2051 PC	16	#include <linux/timex.h>
8d2d2051 PC	17	#include <linux/io.h>
1da177e4	18
fa8031ae	19	#include <asm/cpu_device_id.h>
14a6650f DJ	20	#include <asm/msr.h>
14a6650f DJ	21
8d2d2051 PC	22	#define POWERNOW_IOPORT 0xfff0 /* it doesn't matter where, as long
8d2d2051 PC	23	as it is unused */
1da177e4	24
14a6650f	25	#define PFX "powernow-k6: "
1da177e4 LT	26	static unsigned int busfreq; /* FSB, in 10 kHz */
	27	static unsigned int max_multiplier;
	28
d82b922a MP	29	static unsigned int param_busfreq = 0;
	30	static unsigned int param_max_multiplier = 0;
	31
	32	module_param_named(max_multiplier, param_max_multiplier, uint, S_IRUGO);
	33	MODULE_PARM_DESC(max_multiplier, "Maximum multiplier (allowed values: 20 30 35 40 45 50 55 60)");
	34
	35	module_param_named(bus_frequency, param_busfreq, uint, S_IRUGO);
	36	MODULE_PARM_DESC(bus_frequency, "Bus frequency in kHz");
1da177e4 LT	37
	38	/* Clock ratio multiplied by 10 - see table 27 in AMD#23446 */
	39	static struct cpufreq_frequency_table clock_ratio[] = {
	40	{45, /* 000 -> 4.5x */ 0},
	41	{50, /* 001 -> 5.0x */ 0},
	42	{40, /* 010 -> 4.0x */ 0},
	43	{55, /* 011 -> 5.5x */ 0},
	44	{20, /* 100 -> 2.0x */ 0},
	45	{30, /* 101 -> 3.0x */ 0},
	46	{60, /* 110 -> 6.0x */ 0},
	47	{35, /* 111 -> 3.5x */ 0},
	48	{0, CPUFREQ_TABLE_END}
	49	};
	50
d82b922a MP	51	static const struct {
	52	unsigned freq;
	53	unsigned mult;
	54	} usual_frequency_table[] = {
	55	{ 400000, 40 }, // 100 * 4
	56	{ 450000, 45 }, // 100 * 4.5
	57	{ 475000, 50 }, // 95 * 5
	58	{ 500000, 50 }, // 100 * 5
	59	{ 506250, 45 }, // 112.5 * 4.5
	60	{ 533500, 55 }, // 97 * 5.5
	61	{ 550000, 55 }, // 100 * 5.5
	62	{ 562500, 50 }, // 112.5 * 5
	63	{ 570000, 60 }, // 95 * 6
	64	{ 600000, 60 }, // 100 * 6
	65	{ 618750, 55 }, // 112.5 * 5.5
	66	{ 660000, 55 }, // 120 * 5.5
	67	{ 675000, 60 }, // 112.5 * 6
	68	{ 720000, 60 }, // 120 * 6
	69	};
	70
	71	#define FREQ_RANGE 3000
1da177e4 LT	72
	73	/**
	74	* powernow_k6_get_cpu_multiplier - returns the current FSB multiplier
	75	*
e20e1d0a	76	* Returns the current setting of the frequency multiplier. Core clock
1da177e4 LT	77	* speed is frequency of the Front-Side Bus multiplied with this value.
	78	*/
	79	static int powernow_k6_get_cpu_multiplier(void)
	80	{
e20e1d0a	81	unsigned long invalue = 0;
14a6650f	82	u32 msrval;
32ee8c3e	83
e20e1d0a MP	84	local_irq_disable();
e20e1d0a MP	85
1da177e4 LT	86	msrval = POWERNOW_IOPORT + 0x1;
1da177e4 LT	87	wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */
8d2d2051	88	invalue = inl(POWERNOW_IOPORT + 0x8);
1da177e4 LT	89	msrval = POWERNOW_IOPORT + 0x0;
	90	wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */
	91
e20e1d0a MP	92	local_irq_enable();
e20e1d0a MP	93
50701588	94	return clock_ratio[(invalue >> 5)&7].driver_data;
1da177e4 LT	95	}
1da177e4 LT	96
e20e1d0a MP	97	static void powernow_k6_set_cpu_multiplier(unsigned int best_i)
	98	{
	99	unsigned long outvalue, invalue;
	100	unsigned long msrval;
	101	unsigned long cr0;
	102
	103	/* we now need to transform best_i to the BVC format, see AMD#23446 */
	104
	105	/*
	106	* The processor doesn't respond to inquiry cycles while changing the
	107	* frequency, so we must disable cache.
	108	*/
	109	local_irq_disable();
	110	cr0 = read_cr0();
	111	write_cr0(cr0 \| X86_CR0_CD);
	112	wbinvd();
	113
	114	outvalue = (1<<12) \| (1<<10) \| (1<<9) \| (best_i<<5);
	115
	116	msrval = POWERNOW_IOPORT + 0x1;
	117	wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */
	118	invalue = inl(POWERNOW_IOPORT + 0x8);
	119	invalue = invalue & 0x1f;
	120	outvalue = outvalue \| invalue;
	121	outl(outvalue, (POWERNOW_IOPORT + 0x8));
	122	msrval = POWERNOW_IOPORT + 0x0;
	123	wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */
	124
	125	write_cr0(cr0);
	126	local_irq_enable();
	127	}
1da177e4 LT	128
1da177e4 LT	129	/**
9c0ebcf7	130	* powernow_k6_target - set the PowerNow! multiplier
1da177e4 LT	131	* @best_i: clock_ratio[best_i] is the target multiplier
	132	*
	133	* Tries to change the PowerNow! multiplier
	134	*/
9c0ebcf7	135	static int powernow_k6_target(struct cpufreq_policy *policy,
b43a7ffb	136	unsigned int best_i)
1da177e4	137	{
14a6650f	138	struct cpufreq_freqs freqs;
1da177e4	139
50701588	140	if (clock_ratio[best_i].driver_data > max_multiplier) {
14a6650f	141	printk(KERN_ERR PFX "invalid target frequency\n");
9c0ebcf7	142	return -EINVAL;
1da177e4 LT	143	}
	144
	145	freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
50701588	146	freqs.new = busfreq * clock_ratio[best_i].driver_data;
32ee8c3e	147
b43a7ffb	148	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
1da177e4	149
e20e1d0a	150	powernow_k6_set_cpu_multiplier(best_i);
1da177e4	151
b43a7ffb	152	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
1da177e4	153
1da177e4 LT	154	return 0;
	155	}
	156
1da177e4 LT	157	static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
1da177e4 LT	158	{
14a6650f	159	unsigned int i, f;
d82b922a	160	unsigned khz;
1da177e4 LT	161
	162	if (policy->cpu != 0)
	163	return -ENODEV;
	164
d82b922a MP	165	max_multiplier = 0;
	166	khz = cpu_khz;
	167	for (i = 0; i < ARRAY_SIZE(usual_frequency_table); i++) {
	168	if (khz >= usual_frequency_table[i].freq - FREQ_RANGE &&
	169	khz <= usual_frequency_table[i].freq + FREQ_RANGE) {
	170	khz = usual_frequency_table[i].freq;
	171	max_multiplier = usual_frequency_table[i].mult;
	172	break;
	173	}
	174	}
	175	if (param_max_multiplier) {
	176	for (i = 0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
	177	if (clock_ratio[i].driver_data == param_max_multiplier) {
	178	max_multiplier = param_max_multiplier;
	179	goto have_max_multiplier;
	180	}
	181	}
	182	printk(KERN_ERR "powernow-k6: invalid max_multiplier parameter, valid parameters 20, 30, 35, 40, 45, 50, 55, 60\n");
	183	return -EINVAL;
	184	}
	185
	186	if (!max_multiplier) {
	187	printk(KERN_WARNING "powernow-k6: unknown frequency %u, cannot determine current multiplier\n", khz);
	188	printk(KERN_WARNING "powernow-k6: use module parameters max_multiplier and bus_frequency\n");
	189	return -EOPNOTSUPP;
	190	}
	191
	192	have_max_multiplier:
	193	param_max_multiplier = max_multiplier;
	194
	195	if (param_busfreq) {
	196	if (param_busfreq >= 50000 && param_busfreq <= 150000) {
	197	busfreq = param_busfreq / 10;
	198	goto have_busfreq;
	199	}
	200	printk(KERN_ERR "powernow-k6: invalid bus_frequency parameter, allowed range 50000 - 150000 kHz\n");
	201	return -EINVAL;
	202	}
	203
	204	busfreq = khz / max_multiplier;
	205	have_busfreq:
	206	param_busfreq = busfreq * 10;
1da177e4 LT	207
1da177e4 LT	208	/* table init */
8d2d2051	209	for (i = 0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
50701588	210	f = clock_ratio[i].driver_data;
14a6650f	211	if (f > max_multiplier)
1da177e4 LT	212	clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID;
1da177e4 LT	213	else
14a6650f	214	clock_ratio[i].frequency = busfreq * f;
1da177e4 LT	215	}
	216
	217	/* cpuinfo and default policy values */
e20e1d0a	218	policy->cpuinfo.transition_latency = 500000;
1da177e4	219
b147405a	220	return cpufreq_table_validate_and_show(policy, clock_ratio);
1da177e4 LT	221	}
	222
	223
	224	static int powernow_k6_cpu_exit(struct cpufreq_policy *policy)
	225	{
	226	unsigned int i;
8d2d2051 PC	227	for (i = 0; i < 8; i++) {
8d2d2051 PC	228	if (i == max_multiplier)
9c0ebcf7	229	powernow_k6_target(policy, i);
1da177e4 LT	230	}
1da177e4 LT	231	cpufreq_frequency_table_put_attr(policy->cpu);
32ee8c3e	232	return 0;
1da177e4 LT	233	}
	234
	235	static unsigned int powernow_k6_get(unsigned int cpu)
	236	{
14a6650f DJ	237	unsigned int ret;
	238	ret = (busfreq * powernow_k6_get_cpu_multiplier());
	239	return ret;
1da177e4 LT	240	}
1da177e4 LT	241
221dee28	242	static struct cpufreq_driver powernow_k6_driver = {
d63bd27f	243	.verify = cpufreq_generic_frequency_table_verify,
9c0ebcf7	244	.target_index = powernow_k6_target,
1da177e4 LT	245	.init = powernow_k6_cpu_init,
	246	.exit = powernow_k6_cpu_exit,
	247	.get = powernow_k6_get,
	248	.name = "powernow-k6",
d63bd27f	249	.attr = cpufreq_generic_attr,
1da177e4 LT	250	};
1da177e4 LT	251
fa8031ae AK	252	static const struct x86_cpu_id powernow_k6_ids[] = {
	253	{ X86_VENDOR_AMD, 5, 12 },
	254	{ X86_VENDOR_AMD, 5, 13 },
	255	{}
	256	};
b4d2d231	257	MODULE_DEVICE_TABLE(x86cpu, powernow_k6_ids);
1da177e4 LT	258
	259	/**
	260	* powernow_k6_init - initializes the k6 PowerNow! CPUFreq driver
	261	*
	262	* Initializes the K6 PowerNow! support. Returns -ENODEV on unsupported
	263	* devices, -EINVAL or -ENOMEM on problems during initiatization, and zero
	264	* on success.
	265	*/
	266	static int __init powernow_k6_init(void)
32ee8c3e	267	{
fa8031ae	268	if (!x86_match_cpu(powernow_k6_ids))
1da177e4 LT	269	return -ENODEV;
	270
	271	if (!request_region(POWERNOW_IOPORT, 16, "PowerNow!")) {
14a6650f	272	printk(KERN_INFO PFX "PowerNow IOPORT region already used.\n");
1da177e4 LT	273	return -EIO;
	274	}
	275
	276	if (cpufreq_register_driver(&powernow_k6_driver)) {
8d2d2051	277	release_region(POWERNOW_IOPORT, 16);
1da177e4 LT	278	return -EINVAL;
	279	}
	280
	281	return 0;
	282	}
	283
	284
	285	/**
	286	* powernow_k6_exit - unregisters AMD K6-2+/3+ PowerNow! support
	287	*
	288	* Unregisters AMD K6-2+ / K6-3+ PowerNow! support.
	289	*/
	290	static void __exit powernow_k6_exit(void)
	291	{
	292	cpufreq_unregister_driver(&powernow_k6_driver);
8d2d2051	293	release_region(POWERNOW_IOPORT, 16);
1da177e4 LT	294	}
	295
	296
14a6650f DJ	297	MODULE_AUTHOR("Arjan van de Ven, Dave Jones <davej@redhat.com>, "
14a6650f DJ	298	"Dominik Brodowski <linux@brodo.de>");
8d2d2051 PC	299	MODULE_DESCRIPTION("PowerNow! driver for AMD K6-2+ / K6-3+ processors.");
8d2d2051 PC	300	MODULE_LICENSE("GPL");
1da177e4 LT	301
	302	module_init(powernow_k6_init);
	303	module_exit(powernow_k6_exit);