/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2004 Colin Percival
* Copyright (c) 2005 Nate Lawson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted providing that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/cpu.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/smp.h>
#include <sys/systm.h>
#include "cpufreq_if.h"
#include <machine/clock.h>
#include <machine/cputypes.h>
#include <machine/md_var.h>
#include <machine/specialreg.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <dev/acpica/acpivar.h>
#include "acpi_if.h"
#include <x86/cpufreq/hwpstate_intel_internal.h>
/* Status/control registers (from the IA-32 System Programming Guide). */
#define MSR_PERF_STATUS 0x198
#define MSR_PERF_CTL 0x199
/* Register and bit for enabling SpeedStep. */
#define MSR_MISC_ENABLE 0x1a0
#define MSR_SS_ENABLE (1<<16)
/* Frequency and MSR control values. */
typedef struct {
uint16_t freq;
uint16_t volts;
uint16_t id16;
int power;
} freq_info;
/* Identifying characteristics of a processor and supported frequencies. */
typedef struct {
const u_int vendor_id;
uint32_t id32;
freq_info *freqtab;
size_t tablen;
} cpu_info;
struct est_softc {
device_t dev;
int acpi_settings;
int msr_settings;
freq_info *freq_list;
size_t flist_len;
};
/* Convert MHz and mV into IDs for passing to the MSR. */
#define ID16(MHz, mV, bus_clk) \
(((MHz / bus_clk) << 8) | ((mV ? mV - 700 : 0) >> 4))
#define ID32(MHz_hi, mV_hi, MHz_lo, mV_lo, bus_clk) \
((ID16(MHz_lo, mV_lo, bus_clk) << 16) | (ID16(MHz_hi, mV_hi, bus_clk)))
/* Format for storing IDs in our table. */
#define FREQ_INFO_PWR(MHz, mV, bus_clk, mW) \
{ MHz, mV, ID16(MHz, mV, bus_clk), mW }
#define FREQ_INFO(MHz, mV, bus_clk) \
FREQ_INFO_PWR(MHz, mV, bus_clk, CPUFREQ_VAL_UNKNOWN)
#define INTEL(tab, zhi, vhi, zlo, vlo, bus_clk) \
{ CPU_VENDOR_INTEL, ID32(zhi, vhi, zlo, vlo, bus_clk), tab, nitems(tab) }
#define CENTAUR(tab, zhi, vhi, zlo, vlo, bus_clk) \
{ CPU_VENDOR_CENTAUR, ID32(zhi, vhi, zlo, vlo, bus_clk), tab, nitems(tab) }
static int msr_info_enabled = 0;
TUNABLE_INT("hw.est.msr_info", &msr_info_enabled);
static int strict = -1;
TUNABLE_INT("hw.est.strict", &strict);
/* Default bus clock value for Centrino processors. */
#define INTEL_BUS_CLK 100
/* XXX Update this if new CPUs have more settings. */
#define EST_MAX_SETTINGS 10
CTASSERT(EST_MAX_SETTINGS <= MAX_SETTINGS);
/* Estimate in microseconds of latency for performing a transition. */
#define EST_TRANS_LAT 1000
/*
* Frequency (MHz) and voltage (mV) settings.
*
* Dothan processors have multiple VID#s with different settings for
* each VID#. Since we can't uniquely identify this info
* without undisclosed methods from Intel, we can't support newer
* processors with this table method. If ACPI Px states are supported,
* we get info from them.
*
* Data from the "Intel Pentium M Processor Datasheet",
* Order Number 252612-003, Table 5.
*/
static freq_info PM17_130[] = {
/* 130nm 1.70GHz Pentium M */
FREQ_INFO(1700, 1484, INTEL_BUS_CLK),
FREQ_INFO(1400, 1308, INTEL_BUS_CLK),
FREQ_INFO(1200, 1228, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1004, INTEL_BUS_CLK),
FREQ_INFO( 600, 956, INTEL_BUS_CLK),
};
static freq_info PM16_130[] = {
/* 130nm 1.60GHz Pentium M */
FREQ_INFO(1600, 1484, INTEL_BUS_CLK),
FREQ_INFO(1400, 1420, INTEL_BUS_CLK),
FREQ_INFO(1200, 1276, INTEL_BUS_CLK),
FREQ_INFO(1000, 1164, INTEL_BUS_CLK),
FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
FREQ_INFO( 600, 956, INTEL_BUS_CLK),
};
static freq_info PM15_130[] = {
/* 130nm 1.50GHz Pentium M */
FREQ_INFO(1500, 1484, INTEL_BUS_CLK),
FREQ_INFO(1400, 1452, INTEL_BUS_CLK),
FREQ_INFO(1200, 1356, INTEL_BUS_CLK),
FREQ_INFO(1000, 1228, INTEL_BUS_CLK),
FREQ_INFO( 800, 1116, INTEL_BUS_CLK),
FREQ_INFO( 600, 956, INTEL_BUS_CLK),
};
static freq_info PM14_130[] = {
/* 130nm 1.40GHz Pentium M */
FREQ_INFO(1400, 1484, INTEL_BUS_CLK),
FREQ_INFO(1200, 1436, INTEL_BUS_CLK),
FREQ_INFO(1000, 1308, INTEL_BUS_CLK),
FREQ_INFO( 800, 1180, INTEL_BUS_CLK),
FREQ_INFO( 600, 956, INTEL_BUS_CLK),
};
static freq_info PM13_130[] = {
/* 130nm 1.30GHz Pentium M */
FREQ_INFO(1300, 1388, INTEL_BUS_CLK),
FREQ_INFO(1200, 1356, INTEL_BUS_CLK),
FREQ_INFO(1000, 1292, INTEL_BUS_CLK),
FREQ_INFO( 800, 1260, INTEL_BUS_CLK),
FREQ_INFO( 600, 956, INTEL_BUS_CLK),
};
static freq_info PM13_LV_130[] = {
/* 130nm 1.30GHz Low Voltage Pentium M */
FREQ_INFO(1300, 1180, INTEL_BUS_CLK),
FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
FREQ_INFO(1100, 1100, INTEL_BUS_CLK),
FREQ_INFO(1000, 1020, INTEL_BUS_CLK),
FREQ_INFO( 900, 1004, INTEL_BUS_CLK),
FREQ_INFO( 800, 988, INTEL_BUS_CLK),
FREQ_INFO( 600, 956, INTEL_BUS_CLK),
};
static freq_info PM12_LV_130[] = {
/* 130 nm 1.20GHz Low Voltage Pentium M */
FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
FREQ_INFO(1100, 1164, INTEL_BUS_CLK),
FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
FREQ_INFO( 900, 1020, INTEL_BUS_CLK),
FREQ_INFO( 800, 1004, INTEL_BUS_CLK),
FREQ_INFO( 600, 956, INTEL_BUS_CLK),
};
static freq_info PM11_LV_130[] = {
/* 130 nm 1.10GHz Low Voltage Pentium M */
FREQ_INFO(1100, 1180, INTEL_BUS_CLK),
FREQ_INFO(1000, 1164, INTEL_BUS_CLK),
FREQ_INFO( 900, 1100, INTEL_BUS_CLK),
FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
FREQ_INFO( 600, 956, INTEL_BUS_CLK),
};
static freq_info PM11_ULV_130[] = {
/* 130 nm 1.10GHz Ultra Low Voltage Pentium M */
FREQ_INFO(1100, 1004, INTEL_BUS_CLK),
FREQ_INFO(1000, 988, INTEL_BUS_CLK),
FREQ_INFO( 900, 972, INTEL_BUS_CLK),
FREQ_INFO( 800, 956, INTEL_BUS_CLK),
FREQ_INFO( 600, 844, INTEL_BUS_CLK),
};
static freq_info PM10_ULV_130[] = {
/* 130 nm 1.00GHz Ultra Low Voltage Pentium M */
FREQ_INFO(1000, 1004, INTEL_BUS_CLK),
FREQ_INFO( 900, 988, INTEL_BUS_CLK),
FREQ_INFO( 800, 972, INTEL_BUS_CLK),
FREQ_INFO( 600, 844, INTEL_BUS_CLK),
};
/*
* Data from "Intel Pentium M Processor on 90nm Process with
* 2-MB L2 Cache Datasheet", Order Number 302189-008, Table 5.
*/
static freq_info PM_765A_90[] = {
/* 90 nm 2.10GHz Pentium M, VID #A */
FREQ_INFO(2100, 1340, INTEL_BUS_CLK),
FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_765B_90[] = {
/* 90 nm 2.10GHz Pentium M, VID #B */
FREQ_INFO(2100, 1324, INTEL_BUS_CLK),
FREQ_INFO(1800, 1260, INTEL_BUS_CLK),
FREQ_INFO(1600, 1212, INTEL_BUS_CLK),
FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_765C_90[] = {
/* 90 nm 2.10GHz Pentium M, VID #C */
FREQ_INFO(2100, 1308, INTEL_BUS_CLK),
FREQ_INFO(1800, 1244, INTEL_BUS_CLK),
FREQ_INFO(1600, 1212, INTEL_BUS_CLK),
FREQ_INFO(1400, 1164, INTEL_BUS_CLK),
FREQ_INFO(1200, 1116, INTEL_BUS_CLK),
FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_765E_90[] = {
/* 90 nm 2.10GHz Pentium M, VID #E */
FREQ_INFO(2100, 1356, INTEL_BUS_CLK),
FREQ_INFO(1800, 1292, INTEL_BUS_CLK),
FREQ_INFO(1600, 1244, INTEL_BUS_CLK),
FREQ_INFO(1400, 1196, INTEL_BUS_CLK),
FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_755A_90[] = {
/* 90 nm 2.00GHz Pentium M, VID #A */
FREQ_INFO(2000, 1340, INTEL_BUS_CLK),
FREQ_INFO(1800, 1292, INTEL_BUS_CLK),
FREQ_INFO(1600, 1244, INTEL_BUS_CLK),
FREQ_INFO(1400, 1196, INTEL_BUS_CLK),
FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_755B_90[] = {
/* 90 nm 2.00GHz Pentium M, VID #B */
FREQ_INFO(2000, 1324, INTEL_BUS_CLK),
FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_755C_90[] = {
/* 90 nm 2.00GHz Pentium M, VID #C */
FREQ_INFO(2000, 1308, INTEL_BUS_CLK),
FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_755D_90[] = {
/* 90 nm 2.00GHz Pentium M, VID #D */
FREQ_INFO(2000, 1276, INTEL_BUS_CLK),
FREQ_INFO(1800, 1244, INTEL_BUS_CLK),
FREQ_INFO(1600, 1196, INTEL_BUS_CLK),
FREQ_INFO(1400, 1164, INTEL_BUS_CLK),
FREQ_INFO(1200, 1116, INTEL_BUS_CLK),
FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_745A_90[] = {
/* 90 nm 1.80GHz Pentium M, VID #A */
FREQ_INFO(1800, 1340, INTEL_BUS_CLK),
FREQ_INFO(1600, 1292, INTEL_BUS_CLK),
FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_745B_90[] = {
/* 90 nm 1.80GHz Pentium M, VID #B */
FREQ_INFO(1800, 1324, INTEL_BUS_CLK),
FREQ_INFO(1600, 1276, INTEL_BUS_CLK),
FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_745C_90[] = {
/* 90 nm 1.80GHz Pentium M, VID #C */
FREQ_INFO(1800, 1308, INTEL_BUS_CLK),
FREQ_INFO(1600, 1260, INTEL_BUS_CLK),
FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_745D_90[] = {
/* 90 nm 1.80GHz Pentium M, VID #D */
FREQ_INFO(1800, 1276, INTEL_BUS_CLK),
FREQ_INFO(1600, 1228, INTEL_BUS_CLK),
FREQ_INFO(1400, 1180, INTEL_BUS_CLK),
FREQ_INFO(1200, 1132, INTEL_BUS_CLK),
FREQ_INFO(1000, 1084, INTEL_BUS_CLK),
FREQ_INFO( 800, 1036, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_735A_90[] = {
/* 90 nm 1.70GHz Pentium M, VID #A */
FREQ_INFO(1700, 1340, INTEL_BUS_CLK),
FREQ_INFO(1400, 1244, INTEL_BUS_CLK),
FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_735B_90[] = {
/* 90 nm 1.70GHz Pentium M, VID #B */
FREQ_INFO(1700, 1324, INTEL_BUS_CLK),
FREQ_INFO(1400, 1244, INTEL_BUS_CLK),
FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_735C_90[] = {
/* 90 nm 1.70GHz Pentium M, VID #C */
FREQ_INFO(1700, 1308, INTEL_BUS_CLK),
FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_735D_90[] = {
/* 90 nm 1.70GHz Pentium M, VID #D */
FREQ_INFO(1700, 1276, INTEL_BUS_CLK),
FREQ_INFO(1400, 1212, INTEL_BUS_CLK),
FREQ_INFO(1200, 1148, INTEL_BUS_CLK),
FREQ_INFO(1000, 1100, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_725A_90[] = {
/* 90 nm 1.60GHz Pentium M, VID #A */
FREQ_INFO(1600, 1340, INTEL_BUS_CLK),
FREQ_INFO(1400, 1276, INTEL_BUS_CLK),
FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_725B_90[] = {
/* 90 nm 1.60GHz Pentium M, VID #B */
FREQ_INFO(1600, 1324, INTEL_BUS_CLK),
FREQ_INFO(1400, 1260, INTEL_BUS_CLK),
FREQ_INFO(1200, 1196, INTEL_BUS_CLK),
FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_725C_90[] = {
/* 90 nm 1.60GHz Pentium M, VID #C */
FREQ_INFO(1600, 1308, INTEL_BUS_CLK),
FREQ_INFO(1400, 1244, INTEL_BUS_CLK),
FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_725D_90[] = {
/* 90 nm 1.60GHz Pentium M, VID #D */
FREQ_INFO(1600, 1276, INTEL_BUS_CLK),
FREQ_INFO(1400, 1228, INTEL_BUS_CLK),
FREQ_INFO(1200, 1164, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_715A_90[] = {
/* 90 nm 1.50GHz Pentium M, VID #A */
FREQ_INFO(1500, 1340, INTEL_BUS_CLK),
FREQ_INFO(1200, 1228, INTEL_BUS_CLK),
FREQ_INFO(1000, 1148, INTEL_BUS_CLK),
FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_715B_90[] = {
/* 90 nm 1.50GHz Pentium M, VID #B */
FREQ_INFO(1500, 1324, INTEL_BUS_CLK),
FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
FREQ_INFO(1000, 1148, INTEL_BUS_CLK),
FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_715C_90[] = {
/* 90 nm 1.50GHz Pentium M, VID #C */
FREQ_INFO(1500, 1308, INTEL_BUS_CLK),
FREQ_INFO(1200, 1212, INTEL_BUS_CLK),
FREQ_INFO(1000, 1132, INTEL_BUS_CLK),
FREQ_INFO( 800, 1068, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_715D_90[] = {
/* 90 nm 1.50GHz Pentium M, VID #D */
FREQ_INFO(1500, 1276, INTEL_BUS_CLK),
FREQ_INFO(1200, 1180, INTEL_BUS_CLK),
FREQ_INFO(1000, 1116, INTEL_BUS_CLK),
FREQ_INFO( 800, 1052, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_778_90[] = {
/* 90 nm 1.60GHz Low Voltage Pentium M */
FREQ_INFO(1600, 1116, INTEL_BUS_CLK),
FREQ_INFO(1500, 1116, INTEL_BUS_CLK),
FREQ_INFO(1400, 1100, INTEL_BUS_CLK),
FREQ_INFO(1300, 1084, INTEL_BUS_CLK),
FREQ_INFO(1200, 1068, INTEL_BUS_CLK),
FREQ_INFO(1100, 1052, INTEL_BUS_CLK),
FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_758_90[] = {
/* 90 nm 1.50GHz Low Voltage Pentium M */
FREQ_INFO(1500, 1116, INTEL_BUS_CLK),
FREQ_INFO(1400, 1116, INTEL_BUS_CLK),
FREQ_INFO(1300, 1100, INTEL_BUS_CLK),
FREQ_INFO(1200, 1084, INTEL_BUS_CLK),
FREQ_INFO(1100, 1068, INTEL_BUS_CLK),
FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_738_90[] = {
/* 90 nm 1.40GHz Low Voltage Pentium M */
FREQ_INFO(1400, 1116, INTEL_BUS_CLK),
FREQ_INFO(1300, 1116, INTEL_BUS_CLK),
FREQ_INFO(1200, 1100, INTEL_BUS_CLK),
FREQ_INFO(1100, 1068, INTEL_BUS_CLK),
FREQ_INFO(1000, 1052, INTEL_BUS_CLK),
FREQ_INFO( 900, 1036, INTEL_BUS_CLK),
FREQ_INFO( 800, 1020, INTEL_BUS_CLK),
FREQ_INFO( 600, 988, INTEL_BUS_CLK),
};
static freq_info PM_773G_90[] = {
/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #G */
FREQ_INFO(1300, 956, INTEL_BUS_CLK),
FREQ_INFO(1200, 940, INTEL_BUS_CLK),
FREQ_INFO(1100, 924, INTEL_BUS_CLK),
FREQ_INFO(1000, 908, INTEL_BUS_CLK),
FREQ_INFO( 900, 876, INTEL_BUS_CLK),
FREQ_INFO( 800, 860, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_773H_90[] = {
/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #H */
FREQ_INFO(1300, 940, INTEL_BUS_CLK),
FREQ_INFO(1200, 924, INTEL_BUS_CLK),
FREQ_INFO(1100, 908, INTEL_BUS_CLK),
FREQ_INFO(1000, 892, INTEL_BUS_CLK),
FREQ_INFO( 900, 876, INTEL_BUS_CLK),
FREQ_INFO( 800, 860, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_773I_90[] = {
/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #I */
FREQ_INFO(1300, 924, INTEL_BUS_CLK),
FREQ_INFO(1200, 908, INTEL_BUS_CLK),
FREQ_INFO(1100, 892, INTEL_BUS_CLK),
FREQ_INFO(1000, 876, INTEL_BUS_CLK),
FREQ_INFO( 900, 860, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_773J_90[] = {
/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #J */
FREQ_INFO(1300, 908, INTEL_BUS_CLK),
FREQ_INFO(1200, 908, INTEL_BUS_CLK),
FREQ_INFO(1100, 892, INTEL_BUS_CLK),
FREQ_INFO(1000, 876, INTEL_BUS_CLK),
FREQ_INFO( 900, 860, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_773K_90[] = {
/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #K */
FREQ_INFO(1300, 892, INTEL_BUS_CLK),
FREQ_INFO(1200, 892, INTEL_BUS_CLK),
FREQ_INFO(1100, 876, INTEL_BUS_CLK),
FREQ_INFO(1000, 860, INTEL_BUS_CLK),
FREQ_INFO( 900, 860, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_773L_90[] = {
/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #L */
FREQ_INFO(1300, 876, INTEL_BUS_CLK),
FREQ_INFO(1200, 876, INTEL_BUS_CLK),
FREQ_INFO(1100, 860, INTEL_BUS_CLK),
FREQ_INFO(1000, 860, INTEL_BUS_CLK),
FREQ_INFO( 900, 844, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_753G_90[] = {
/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #G */
FREQ_INFO(1200, 956, INTEL_BUS_CLK),
FREQ_INFO(1100, 940, INTEL_BUS_CLK),
FREQ_INFO(1000, 908, INTEL_BUS_CLK),
FREQ_INFO( 900, 892, INTEL_BUS_CLK),
FREQ_INFO( 800, 860, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_753H_90[] = {
/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #H */
FREQ_INFO(1200, 940, INTEL_BUS_CLK),
FREQ_INFO(1100, 924, INTEL_BUS_CLK),
FREQ_INFO(1000, 908, INTEL_BUS_CLK),
FREQ_INFO( 900, 876, INTEL_BUS_CLK),
FREQ_INFO( 800, 860, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_753I_90[] = {
/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #I */
FREQ_INFO(1200, 924, INTEL_BUS_CLK),
FREQ_INFO(1100, 908, INTEL_BUS_CLK),
FREQ_INFO(1000, 892, INTEL_BUS_CLK),
FREQ_INFO( 900, 876, INTEL_BUS_CLK),
FREQ_INFO( 800, 860, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_753J_90[] = {
/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #J */
FREQ_INFO(1200, 908, INTEL_BUS_CLK),
FREQ_INFO(1100, 892, INTEL_BUS_CLK),
FREQ_INFO(1000, 876, INTEL_BUS_CLK),
FREQ_INFO( 900, 860, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_753K_90[] = {
/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #K */
FREQ_INFO(1200, 892, INTEL_BUS_CLK),
FREQ_INFO(1100, 892, INTEL_BUS_CLK),
FREQ_INFO(1000, 876, INTEL_BUS_CLK),
FREQ_INFO( 900, 860, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_753L_90[] = {
/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #L */
FREQ_INFO(1200, 876, INTEL_BUS_CLK),
FREQ_INFO(1100, 876, INTEL_BUS_CLK),
FREQ_INFO(1000, 860, INTEL_BUS_CLK),
FREQ_INFO( 900, 844, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_733JG_90[] = {
/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #G */
FREQ_INFO(1100, 956, INTEL_BUS_CLK),
FREQ_INFO(1000, 940, INTEL_BUS_CLK),
FREQ_INFO( 900, 908, INTEL_BUS_CLK),
FREQ_INFO( 800, 876, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_733JH_90[] = {
/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #H */
FREQ_INFO(1100, 940, INTEL_BUS_CLK),
FREQ_INFO(1000, 924, INTEL_BUS_CLK),
FREQ_INFO( 900, 892, INTEL_BUS_CLK),
FREQ_INFO( 800, 876, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_733JI_90[] = {
/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #I */
FREQ_INFO(1100, 924, INTEL_BUS_CLK),
FREQ_INFO(1000, 908, INTEL_BUS_CLK),
FREQ_INFO( 900, 892, INTEL_BUS_CLK),
FREQ_INFO( 800, 860, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_733JJ_90[] = {
/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #J */
FREQ_INFO(1100, 908, INTEL_BUS_CLK),
FREQ_INFO(1000, 892, INTEL_BUS_CLK),
FREQ_INFO( 900, 876, INTEL_BUS_CLK),
FREQ_INFO( 800, 860, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_733JK_90[] = {
/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #K */
FREQ_INFO(1100, 892, INTEL_BUS_CLK),
FREQ_INFO(1000, 876, INTEL_BUS_CLK),
FREQ_INFO( 900, 860, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_733JL_90[] = {
/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #L */
FREQ_INFO(1100, 876, INTEL_BUS_CLK),
FREQ_INFO(1000, 876, INTEL_BUS_CLK),
FREQ_INFO( 900, 860, INTEL_BUS_CLK),
FREQ_INFO( 800, 844, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_733_90[] = {
/* 90 nm 1.10GHz Ultra Low Voltage Pentium M */
FREQ_INFO(1100, 940, INTEL_BUS_CLK),
FREQ_INFO(1000, 924, INTEL_BUS_CLK),
FREQ_INFO( 900, 892, INTEL_BUS_CLK),
FREQ_INFO( 800, 876, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
static freq_info PM_723_90[] = {
/* 90 nm 1.00GHz Ultra Low Voltage Pentium M */
FREQ_INFO(1000, 940, INTEL_BUS_CLK),
FREQ_INFO( 900, 908, INTEL_BUS_CLK),
FREQ_INFO( 800, 876, INTEL_BUS_CLK),
FREQ_INFO( 600, 812, INTEL_BUS_CLK),
};
/*
* VIA C7-M 500 MHz FSB, 400 MHz FSB, and ULV variants.
* Data from the "VIA C7-M Processor BIOS Writer's Guide (v2.17)" datasheet.
*/
static freq_info C7M_795[] = {
/* 2.00GHz Centaur C7-M 533 Mhz FSB */
FREQ_INFO_PWR(2000, 1148, 133, 20000),
FREQ_INFO_PWR(1867, 1132, 133, 18000),
FREQ_INFO_PWR(1600, 1100, 133, 15000),
FREQ_INFO_PWR(1467, 1052, 133, 13000),
FREQ_INFO_PWR(1200, 1004, 133, 10000),
FREQ_INFO_PWR( 800, 844, 133, 7000),
FREQ_INFO_PWR( 667, 844, 133, 6000),
FREQ_INFO_PWR( 533, 844, 133, 5000),
};
static freq_info C7M_785[] = {
/* 1.80GHz Centaur C7-M 533 Mhz FSB */
FREQ_INFO_PWR(1867, 1148, 133, 18000),
FREQ_INFO_PWR(1600, 1100, 133, 15000),
FREQ_INFO_PWR(1467, 1052, 133, 13000),
FREQ_INFO_PWR(1200, 1004, 133, 10000),
FREQ_INFO_PWR( 800, 844, 133, 7000),
FREQ_INFO_PWR( 667, 844, 133, 6000),
FREQ_INFO_PWR( 533, 844, 133, 5000),
};
static freq_info C7M_765[] = {
/* 1.60GHz Centaur C7-M 533 Mhz FSB */
FREQ_INFO_PWR(1600, 1084, 133, 15000),
FREQ_INFO_PWR(1467, 1052, 133, 13000),
FREQ_INFO_PWR(1200, 1004, 133, 10000),
FREQ_INFO_PWR( 800, 844, 133, 7000),
FREQ_INFO_PWR( 667, 844, 133, 6000),
FREQ_INFO_PWR( 533, 844, 133, 5000),
};
static freq_info C7M_794[] = {
/* 2.00GHz Centaur C7-M 400 Mhz FSB */
FREQ_INFO_PWR(2000, 1148, 100, 20000),
FREQ_INFO_PWR(1800, 1132, 100, 18000),
FREQ_INFO_PWR(1600, 1100, 100, 15000),
FREQ_INFO_PWR(1400, 1052, 100, 13000),
FREQ_INFO_PWR(1000, 1004, 100, 10000),
FREQ_INFO_PWR( 800, 844, 100, 7000),
FREQ_INFO_PWR( 600, 844, 100, 6000),
FREQ_INFO_PWR( 400, 844, 100, 5000),
};
static freq_info C7M_784[] = {
/* 1.80GHz Centaur C7-M 400 Mhz FSB */
FREQ_INFO_PWR(1800, 1148, 100, 18000),
FREQ_INFO_PWR(1600, 1100, 100, 15000),
FREQ_INFO_PWR(1400, 1052, 100, 13000),
FREQ_INFO_PWR(1000, 1004, 100, 10000),
FREQ_INFO_PWR( 800, 844, 100, 7000),
FREQ_INFO_PWR( 600, 844, 100, 6000),
FREQ_INFO_PWR( 400, 844, 100, 5000),
};
static freq_info C7M_764[] = {
/* 1.60GHz Centaur C7-M 400 Mhz FSB */
FREQ_INFO_PWR(1600, 1084, 100, 15000),
FREQ_INFO_PWR(1400, 1052, 100, 13000),
FREQ_INFO_PWR(1000, 1004, 100, 10000),
FREQ_INFO_PWR( 800, 844, 100, 7000),
FREQ_INFO_PWR( 600, 844, 100, 6000),
FREQ_INFO_PWR( 400, 844, 100, 5000),
};
static freq_info C7M_754[] = {
/* 1.50GHz Centaur C7-M 400 Mhz FSB */
FREQ_INFO_PWR(1500, 1004, 100, 12000),
FREQ_INFO_PWR(1400, 988, 100, 11000),
FREQ_INFO_PWR(1000, 940, 100, 9000),
FREQ_INFO_PWR( 800, 844, 100, 7000),
FREQ_INFO_PWR( 600, 844, 100, 6000),
FREQ_INFO_PWR( 400, 844, 100, 5000),
};
static freq_info C7M_771[] = {
/* 1.20GHz Centaur C7-M 400 Mhz FSB */
FREQ_INFO_PWR(1200, 860, 100, 7000),
FREQ_INFO_PWR(1000, 860, 100, 6000),
FREQ_INFO_PWR( 800, 844, 100, 5500),
FREQ_INFO_PWR( 600, 844, 100, 5000),
FREQ_INFO_PWR( 400, 844, 100, 4000),
};
static freq_info C7M_775_ULV[] = {
/* 1.50GHz Centaur C7-M ULV */
FREQ_INFO_PWR(1500, 956, 100, 7500),
FREQ_INFO_PWR(1400, 940, 100, 6000),
FREQ_INFO_PWR(1000, 860, 100, 5000),
FREQ_INFO_PWR( 800, 828, 100, 2800),
FREQ_INFO_PWR( 600, 796, 100, 2500),
FREQ_INFO_PWR( 400, 796, 100, 2000),
};
static freq_info C7M_772_ULV[] = {
/* 1.20GHz Centaur C7-M ULV */
FREQ_INFO_PWR(1200, 844, 100, 5000),
FREQ_INFO_PWR(1000, 844, 100, 4000),
FREQ_INFO_PWR( 800, 828, 100, 2800),
FREQ_INFO_PWR( 600, 796, 100, 2500),
FREQ_INFO_PWR( 400, 796, 100, 2000),
};
static freq_info C7M_779_ULV[] = {
/* 1.00GHz Centaur C7-M ULV */
FREQ_INFO_PWR(1000, 796, 100, 3500),
FREQ_INFO_PWR( 800, 796, 100, 2800),
FREQ_INFO_PWR( 600, 796, 100, 2500),
FREQ_INFO_PWR( 400, 796, 100, 2000),
};
static freq_info C7M_770_ULV[] = {
/* 1.00GHz Centaur C7-M ULV */
FREQ_INFO_PWR(1000, 844, 100, 5000),
FREQ_INFO_PWR( 800, 796, 100, 2800),
FREQ_INFO_PWR( 600, 796, 100, 2500),
FREQ_INFO_PWR( 400, 796, 100, 2000),
};
static cpu_info ESTprocs[] = {
INTEL(PM17_130, 1700, 1484, 600, 956, INTEL_BUS_CLK),
INTEL(PM16_130, 1600, 1484, 600, 956, INTEL_BUS_CLK),
INTEL(PM15_130, 1500, 1484, 600, 956, INTEL_BUS_CLK),
INTEL(PM14_130, 1400, 1484, 600, 956, INTEL_BUS_CLK),
INTEL(PM13_130, 1300, 1388, 600, 956, INTEL_BUS_CLK),
INTEL(PM13_LV_130, 1300, 1180, 600, 956, INTEL_BUS_CLK),
INTEL(PM12_LV_130, 1200, 1180, 600, 956, INTEL_BUS_CLK),
INTEL(PM11_LV_130, 1100, 1180, 600, 956, INTEL_BUS_CLK),
INTEL(PM11_ULV_130, 1100, 1004, 600, 844, INTEL_BUS_CLK),
INTEL(PM10_ULV_130, 1000, 1004, 600, 844, INTEL_BUS_CLK),
INTEL(PM_765A_90, 2100, 1340, 600, 988, INTEL_BUS_CLK),
INTEL(PM_765B_90, 2100, 1324, 600, 988, INTEL_BUS_CLK),
INTEL(PM_765C_90, 2100, 1308, 600, 988, INTEL_BUS_CLK),
INTEL(PM_765E_90, 2100, 1356, 600, 988, INTEL_BUS_CLK),
INTEL(PM_755A_90, 2000, 1340, 600, 988, INTEL_BUS_CLK),
INTEL(PM_755B_90, 2000, 1324, 600, 988, INTEL_BUS_CLK),
INTEL(PM_755C_90, 2000, 1308, 600, 988, INTEL_BUS_CLK),
INTEL(PM_755D_90, 2000, 1276, 600, 988, INTEL_BUS_CLK),
INTEL(PM_745A_90, 1800, 1340, 600, 988, INTEL_BUS_CLK),
INTEL(PM_745B_90, 1800, 1324, 600, 988, INTEL_BUS_CLK),
INTEL(PM_745C_90, 1800, 1308, 600, 988, INTEL_BUS_CLK),
INTEL(PM_745D_90, 1800, 1276, 600, 988, INTEL_BUS_CLK),
INTEL(PM_735A_90, 1700, 1340, 600, 988, INTEL_BUS_CLK),
INTEL(PM_735B_90, 1700, 1324, 600, 988, INTEL_BUS_CLK),
INTEL(PM_735C_90, 1700, 1308, 600, 988, INTEL_BUS_CLK),
INTEL(PM_735D_90, 1700, 1276, 600, 988, INTEL_BUS_CLK),
INTEL(PM_725A_90, 1600, 1340, 600, 988, INTEL_BUS_CLK),
INTEL(PM_725B_90, 1600, 1324, 600, 988, INTEL_BUS_CLK),
INTEL(PM_725C_90, 1600, 1308, 600, 988, INTEL_BUS_CLK),
INTEL(PM_725D_90, 1600, 1276, 600, 988, INTEL_BUS_CLK),
INTEL(PM_715A_90, 1500, 1340, 600, 988, INTEL_BUS_CLK),
INTEL(PM_715B_90, 1500, 1324, 600, 988, INTEL_BUS_CLK),
INTEL(PM_715C_90, 1500, 1308, 600, 988, INTEL_BUS_CLK),
INTEL(PM_715D_90, 1500, 1276, 600, 988, INTEL_BUS_CLK),
INTEL(PM_778_90, 1600, 1116, 600, 988, INTEL_BUS_CLK),
INTEL(PM_758_90, 1500, 1116, 600, 988, INTEL_BUS_CLK),
INTEL(PM_738_90, 1400, 1116, 600, 988, INTEL_BUS_CLK),
INTEL(PM_773G_90, 1300, 956, 600, 812, INTEL_BUS_CLK),
INTEL(PM_773H_90, 1300, 940, 600, 812, INTEL_BUS_CLK),
INTEL(PM_773I_90, 1300, 924, 600, 812, INTEL_BUS_CLK),
INTEL(PM_773J_90, 1300, 908, 600, 812, INTEL_BUS_CLK),
INTEL(PM_773K_90, 1300, 892, 600, 812, INTEL_BUS_CLK),
INTEL(PM_773L_90, 1300, 876, 600, 812, INTEL_BUS_CLK),
INTEL(PM_753G_90, 1200, 956, 600, 812, INTEL_BUS_CLK),
INTEL(PM_753H_90, 1200, 940, 600, 812, INTEL_BUS_CLK),
INTEL(PM_753I_90, 1200, 924, 600, 812, INTEL_BUS_CLK),
INTEL(PM_753J_90, 1200, 908, 600, 812, INTEL_BUS_CLK),
INTEL(PM_753K_90, 1200, 892, 600, 812, INTEL_BUS_CLK),
INTEL(PM_753L_90, 1200, 876, 600, 812, INTEL_BUS_CLK),
INTEL(PM_733JG_90, 1100, 956, 600, 812, INTEL_BUS_CLK),
INTEL(PM_733JH_90, 1100, 940, 600, 812, INTEL_BUS_CLK),
INTEL(PM_733JI_90, 1100, 924, 600, 812, INTEL_BUS_CLK),
INTEL(PM_733JJ_90, 1100, 908, 600, 812, INTEL_BUS_CLK),
INTEL(PM_733JK_90, 1100, 892, 600, 812, INTEL_BUS_CLK),
INTEL(PM_733JL_90, 1100, 876, 600, 812, INTEL_BUS_CLK),
INTEL(PM_733_90, 1100, 940, 600, 812, INTEL_BUS_CLK),
INTEL(PM_723_90, 1000, 940, 600, 812, INTEL_BUS_CLK),
CENTAUR(C7M_795, 2000, 1148, 533, 844, 133),
CENTAUR(C7M_794, 2000, 1148, 400, 844, 100),
CENTAUR(C7M_785, 1867, 1148, 533, 844, 133),
CENTAUR(C7M_784, 1800, 1148, 400, 844, 100),
CENTAUR(C7M_765, 1600, 1084, 533, 844, 133),
CENTAUR(C7M_764, 1600, 1084, 400, 844, 100),
CENTAUR(C7M_754, 1500, 1004, 400, 844, 100),
CENTAUR(C7M_775_ULV, 1500, 956, 400, 796, 100),
CENTAUR(C7M_771, 1200, 860, 400, 844, 100),
CENTAUR(C7M_772_ULV, 1200, 844, 400, 796, 100),
CENTAUR(C7M_779_ULV, 1000, 796, 400, 796, 100),
CENTAUR(C7M_770_ULV, 1000, 844, 400, 796, 100),
{ 0, 0, NULL },
};
static void est_identify(driver_t *driver, device_t parent);
static int est_features(driver_t *driver, u_int *features);
static int est_probe(device_t parent);
static int est_attach(device_t parent);
static int est_detach(device_t parent);
static int est_get_info(device_t dev);
static int est_acpi_info(device_t dev, freq_info **freqs,
size_t *freqslen);
static int est_table_info(device_t dev, uint64_t msr, freq_info **freqs,
size_t *freqslen);
static int est_msr_info(device_t dev, uint64_t msr, freq_info **freqs,
size_t *freqslen);
static freq_info *est_get_current(freq_info *freq_list, size_t tablen);
static int est_settings(device_t dev, struct cf_setting *sets, int *count);
static int est_set(device_t dev, const struct cf_setting *set);
static int est_get(device_t dev, struct cf_setting *set);
static int est_type(device_t dev, int *type);
static int est_set_id16(device_t dev, uint16_t id16, int need_check);
static void est_get_id16(uint16_t *id16_p);
static device_method_t est_methods[] = {
/* Device interface */
DEVMETHOD(device_identify, est_identify),
DEVMETHOD(device_probe, est_probe),
DEVMETHOD(device_attach, est_attach),
DEVMETHOD(device_detach, est_detach),
/* cpufreq interface */
DEVMETHOD(cpufreq_drv_set, est_set),
DEVMETHOD(cpufreq_drv_get, est_get),
DEVMETHOD(cpufreq_drv_type, est_type),
DEVMETHOD(cpufreq_drv_settings, est_settings),
/* ACPI interface */
DEVMETHOD(acpi_get_features, est_features),
{0, 0}
};
static driver_t est_driver = {
"est",
est_methods,
sizeof(struct est_softc),
};
static devclass_t est_devclass;
DRIVER_MODULE(est, cpu, est_driver, est_devclass, 0, 0);
MODULE_DEPEND(est, hwpstate_intel, 1, 1, 1);
static int
est_features(driver_t *driver, u_int *features)
{
/*
* Notify the ACPI CPU that we support direct access to MSRs.
* XXX C1 "I/O then Halt" seems necessary for some broken BIOS.
*/
*features = ACPI_CAP_PERF_MSRS | ACPI_CAP_C1_IO_HALT;
return (0);
}
static void
est_identify(driver_t *driver, device_t parent)
{
device_t child;
/*
* Defer to hwpstate if it is present. This priority logic
* should be replaced with normal newbus probing in the
* future.
*/
intel_hwpstate_identify(NULL, parent);
if (device_find_child(parent, "hwpstate_intel", -1) != NULL)
return;
/* Make sure we're not being doubly invoked. */
if (device_find_child(parent, "est", -1) != NULL)
return;
/* Check that CPUID is supported and the vendor is Intel.*/
if (cpu_high == 0 || (cpu_vendor_id != CPU_VENDOR_INTEL &&
cpu_vendor_id != CPU_VENDOR_CENTAUR))
return;
/*
* Check if the CPU supports EST.
*/
if (!(cpu_feature2 & CPUID2_EST))
return;
/*
* We add a child for each CPU since settings must be performed
* on each CPU in the SMP case.
*/
child = BUS_ADD_CHILD(parent, 10, "est", -1);
if (child == NULL)
device_printf(parent, "add est child failed\n");
}
static int
est_probe(device_t dev)
{
device_t perf_dev;
uint64_t msr;
int error, type;
if (resource_disabled("est", 0))
return (ENXIO);
/*
* If the ACPI perf driver has attached and is not just offering
* info, let it manage things.
*/
perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1);
if (perf_dev && device_is_attached(perf_dev)) {
error = CPUFREQ_DRV_TYPE(perf_dev, &type);
if (error == 0 && (type & CPUFREQ_FLAG_INFO_ONLY) == 0)
return (ENXIO);
}
/* Attempt to enable SpeedStep if not currently enabled. */
msr = rdmsr(MSR_MISC_ENABLE);
if ((msr & MSR_SS_ENABLE) == 0) {
wrmsr(MSR_MISC_ENABLE, msr | MSR_SS_ENABLE);
if (bootverbose)
device_printf(dev, "enabling SpeedStep\n");
/* Check if the enable failed. */
msr = rdmsr(MSR_MISC_ENABLE);
if ((msr & MSR_SS_ENABLE) == 0) {
device_printf(dev, "failed to enable SpeedStep\n");
return (ENXIO);
}
}
device_set_desc(dev, "Enhanced SpeedStep Frequency Control");
return (0);
}
static int
est_attach(device_t dev)
{
struct est_softc *sc;
sc = device_get_softc(dev);
sc->dev = dev;
/* On SMP system we can't guarantie independent freq setting. */
if (strict == -1 && mp_ncpus > 1)
strict = 0;
/* Check CPU for supported settings. */
if (est_get_info(dev))
return (ENXIO);
cpufreq_register(dev);
return (0);
}
static int
est_detach(device_t dev)
{
struct est_softc *sc;
int error;
error = cpufreq_unregister(dev);
if (error)
return (error);
sc = device_get_softc(dev);
if (sc->acpi_settings || sc->msr_settings)
free(sc->freq_list, M_DEVBUF);
return (0);
}
/*
* Probe for supported CPU settings. First, check our static table of
* settings. If no match, try using the ones offered by acpi_perf
* (i.e., _PSS). We use ACPI second because some systems (IBM R/T40
* series) export both legacy SMM IO-based access and direct MSR access
* but the direct access specifies invalid values for _PSS.
*/
static int
est_get_info(device_t dev)
{
struct est_softc *sc;
uint64_t msr;
int error;
sc = device_get_softc(dev);
msr = rdmsr(MSR_PERF_STATUS);
error = est_table_info(dev, msr, &sc->freq_list, &sc->flist_len);
if (error)
error = est_acpi_info(dev, &sc->freq_list, &sc->flist_len);
if (error)
error = est_msr_info(dev, msr, &sc->freq_list, &sc->flist_len);
if (error) {
printf(
"est: CPU supports Enhanced Speedstep, but is not recognized.\n"
"est: cpu_vendor %s, msr %0jx\n", cpu_vendor, msr);
return (ENXIO);
}
return (0);
}
static int
est_acpi_info(device_t dev, freq_info **freqs, size_t *freqslen)
{
struct est_softc *sc;
struct cf_setting *sets;
freq_info *table;
device_t perf_dev;
int count, error, i, j;
uint16_t saved_id16;
perf_dev = device_find_child(device_get_parent(dev), "acpi_perf", -1);
if (perf_dev == NULL || !device_is_attached(perf_dev))
return (ENXIO);
/* Fetch settings from acpi_perf. */
sc = device_get_softc(dev);
table = NULL;
sets = malloc(MAX_SETTINGS * sizeof(*sets), M_TEMP, M_NOWAIT);
if (sets == NULL)
return (ENOMEM);
count = MAX_SETTINGS;
error = CPUFREQ_DRV_SETTINGS(perf_dev, sets, &count);
if (error)
goto out;
/* Parse settings into our local table format. */
table = malloc(count * sizeof(*table), M_DEVBUF, M_NOWAIT);
if (table == NULL) {
error = ENOMEM;
goto out;
}
est_get_id16(&saved_id16);
for (i = 0, j = 0; i < count; i++) {
/*
* Confirm id16 value is correct.
*/
if (sets[i].freq > 0) {
error = est_set_id16(dev, sets[i].spec[0], strict);
if (error != 0) {
if (bootverbose)
device_printf(dev, "Invalid freq %u, "
"ignored.\n", sets[i].freq);
continue;
}
table[j].freq = sets[i].freq;
table[j].volts = sets[i].volts;
table[j].id16 = sets[i].spec[0];
table[j].power = sets[i].power;
++j;
}
}
/* restore saved setting */
est_set_id16(dev, saved_id16, 0);
sc->acpi_settings = TRUE;
*freqs = table;
*freqslen = j;
error = 0;
out:
if (sets)
free(sets, M_TEMP);
if (error && table)
free(table, M_DEVBUF);
return (error);
}
static int
est_table_info(device_t dev, uint64_t msr, freq_info **freqs, size_t *freqslen)
{
cpu_info *p;
uint32_t id;
/* Find a table which matches (vendor, id32). */
id = msr >> 32;
for (p = ESTprocs; p->id32 != 0; p++) {
if (p->vendor_id == cpu_vendor_id && p->id32 == id)
break;
}
if (p->id32 == 0)
return (EOPNOTSUPP);
/* Make sure the current setpoint is valid. */
if (est_get_current(p->freqtab, p->tablen) == NULL) {
device_printf(dev, "current setting not found in table\n");
return (EOPNOTSUPP);
}
*freqs = p->freqtab;
*freqslen = p->tablen;
return (0);
}
static int
bus_speed_ok(int bus)
{
switch (bus) {
case 100:
case 133:
case 333:
return (1);
default:
return (0);
}
}
/*
* Flesh out a simple rate table containing the high and low frequencies
* based on the current clock speed and the upper 32 bits of the MSR.
*/
static int
est_msr_info(device_t dev, uint64_t msr, freq_info **freqs, size_t *freqslen)
{
struct est_softc *sc;
freq_info *fp;
int bus, freq, volts;
uint16_t id;
if (!msr_info_enabled)
return (EOPNOTSUPP);
/* Figure out the bus clock. */
freq = atomic_load_acq_64(&tsc_freq) / 1000000;
id = msr >> 32;
bus = freq / (id >> 8);
device_printf(dev, "Guessed bus clock (high) of %d MHz\n", bus);
if (!bus_speed_ok(bus)) {
/* We may be running on the low frequency. */
id = msr >> 48;
bus = freq / (id >> 8);
device_printf(dev, "Guessed bus clock (low) of %d MHz\n", bus);
if (!bus_speed_ok(bus))
return (EOPNOTSUPP);
/* Calculate high frequency. */
id = msr >> 32;
freq = ((id >> 8) & 0xff) * bus;
}
/* Fill out a new freq table containing just the high and low freqs. */
sc = device_get_softc(dev);
fp = malloc(sizeof(freq_info) * 2, M_DEVBUF, M_WAITOK | M_ZERO);
/* First, the high frequency. */
volts = id & 0xff;
if (volts != 0) {
volts <<= 4;
volts += 700;
}
fp[0].freq = freq;
fp[0].volts = volts;
fp[0].id16 = id;
fp[0].power = CPUFREQ_VAL_UNKNOWN;
device_printf(dev, "Guessed high setting of %d MHz @ %d Mv\n", freq,
volts);
/* Second, the low frequency. */
id = msr >> 48;
freq = ((id >> 8) & 0xff) * bus;
volts = id & 0xff;
if (volts != 0) {
volts <<= 4;
volts += 700;
}
fp[1].freq = freq;
fp[1].volts = volts;
fp[1].id16 = id;
fp[1].power = CPUFREQ_VAL_UNKNOWN;
device_printf(dev, "Guessed low setting of %d MHz @ %d Mv\n", freq,
volts);
/* Table is already terminated due to M_ZERO. */
sc->msr_settings = TRUE;
*freqs = fp;
*freqslen = 2;
return (0);
}
static void
est_get_id16(uint16_t *id16_p)
{
*id16_p = rdmsr(MSR_PERF_STATUS) & 0xffff;
}
static int
est_set_id16(device_t dev, uint16_t id16, int need_check)
{
uint64_t msr;
uint16_t new_id16;
int ret = 0;
/* Read the current register, mask out the old, set the new id. */
msr = rdmsr(MSR_PERF_CTL);
msr = (msr & ~0xffff) | id16;
wrmsr(MSR_PERF_CTL, msr);
if (need_check) {
/* Wait a short while and read the new status. */
DELAY(EST_TRANS_LAT);
est_get_id16(&new_id16);
if (new_id16 != id16) {
if (bootverbose)
device_printf(dev, "Invalid id16 (set, cur) "
"= (%u, %u)\n", id16, new_id16);
ret = ENXIO;
}
}
return (ret);
}
static freq_info *
est_get_current(freq_info *freq_list, size_t tablen)
{
freq_info *f;
int i;
uint16_t id16;
/*
* Try a few times to get a valid value. Sometimes, if the CPU
* is in the middle of an asynchronous transition (i.e., P4TCC),
* we get a temporary invalid result.
*/
for (i = 0; i < 5; i++) {
est_get_id16(&id16);
for (f = freq_list; f < freq_list + tablen; f++) {
if (f->id16 == id16)
return (f);
}
DELAY(100);
}
return (NULL);
}
static int
est_settings(device_t dev, struct cf_setting *sets, int *count)
{
struct est_softc *sc;
freq_info *f;
int i;
sc = device_get_softc(dev);
if (*count < EST_MAX_SETTINGS)
return (E2BIG);
i = 0;
for (f = sc->freq_list; f < sc->freq_list + sc->flist_len; f++, i++) {
sets[i].freq = f->freq;
sets[i].volts = f->volts;
sets[i].power = f->power;
sets[i].lat = EST_TRANS_LAT;
sets[i].dev = dev;
}
*count = i;
return (0);
}
static int
est_set(device_t dev, const struct cf_setting *set)
{
struct est_softc *sc;
freq_info *f;
/* Find the setting matching the requested one. */
sc = device_get_softc(dev);
for (f = sc->freq_list; f < sc->freq_list + sc->flist_len; f++) {
if (f->freq == set->freq)
break;
}
if (f->freq == 0)
return (EINVAL);
/* Read the current register, mask out the old, set the new id. */
est_set_id16(dev, f->id16, 0);
return (0);
}
static int
est_get(device_t dev, struct cf_setting *set)
{
struct est_softc *sc;
freq_info *f;
sc = device_get_softc(dev);
f = est_get_current(sc->freq_list, sc->flist_len);
if (f == NULL)
return (ENXIO);
set->freq = f->freq;
set->volts = f->volts;
set->power = f->power;
set->lat = EST_TRANS_LAT;
set->dev = dev;
return (0);
}
static int
est_type(device_t dev, int *type)
{
if (type == NULL)
return (EINVAL);
*type = CPUFREQ_TYPE_ABSOLUTE;
return (0);
}