1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
52 /* Status/control registers (from the IA-32 System Programming Guide). */
65 	int		power;  member
86 	(((MHz / bus_clk) << 8) | ((mV ? mV - 700 : 0) >> 4))
102 static int strict = -1;
125  * Order Number 252612-003, Table 5.
171 	/* 130nm 1.30GHz Low Voltage Pentium M */
181 	/* 130 nm 1.20GHz Low Voltage Pentium M */
190 	/* 130 nm 1.10GHz Low Voltage Pentium M */
198 	/* 130 nm 1.10GHz Ultra Low Voltage Pentium M */
206 	/* 130 nm 1.00GHz Ultra Low Voltage Pentium M */
215  * 2-MB L2 Cache Datasheet", Order Number 302189-008, Table 5.
450 	/* 90 nm 1.60GHz Low Voltage Pentium M */
463 	/* 90 nm 1.50GHz Low Voltage Pentium M */
475 	/* 90 nm 1.40GHz Low Voltage Pentium M */
486 	/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #G */
496 	/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #H */
506 	/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #I */
516 	/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #J */
526 	/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #K */
536 	/* 90 nm 1.30GHz Ultra Low Voltage Pentium M, VID #L */
546 	/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #G */
555 	/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #H */
564 	/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #I */
573 	/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #J */
582 	/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #K */
591 	/* 90 nm 1.20GHz Ultra Low Voltage Pentium M, VID #L */
601 	/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #G */
609 	/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #H */
617 	/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #I */
625 	/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #J */
633 	/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #K */
641 	/* 90 nm 1.10GHz Ultra Low Voltage Pentium M, VID #L */
649 	/* 90 nm 1.10GHz Ultra Low Voltage Pentium M */
657 	/* 90 nm 1.00GHz Ultra Low Voltage Pentium M */
665  * VIA C7-M 500 MHz FSB, 400 MHz FSB, and ULV variants.
666  * Data from the "VIA C7-M Processor BIOS Writer's Guide (v2.17)" datasheet.
669 	/* 2.00GHz Centaur C7-M 533 Mhz FSB */
680 	/* 1.80GHz Centaur C7-M 533 Mhz FSB */
690 	/* 1.60GHz Centaur C7-M 533 Mhz FSB */
700 	/* 2.00GHz Centaur C7-M 400 Mhz FSB */
711 	/* 1.80GHz Centaur C7-M 400 Mhz FSB */
721 	/* 1.60GHz Centaur C7-M 400 Mhz FSB */
730 	/* 1.50GHz Centaur C7-M 400 Mhz FSB */
739 	/* 1.20GHz Centaur C7-M 400 Mhz FSB */
748 	/* 1.50GHz Centaur C7-M ULV */
757 	/* 1.20GHz Centaur C7-M ULV */
765 	/* 1.00GHz Centaur C7-M ULV */
772 	/* 1.00GHz Centaur C7-M ULV */
997 	sc->dev = dev;  in est_attach()
1000 	if (strict == -1 && mp_ncpus > 1)  in est_attach()
1021 	if (sc->acpi_settings || sc->msr_settings)  in est_detach()
1022 		free(sc->freq_list, M_DEVBUF);  in est_detach()
1030  * series) export both legacy SMM IO-based access and direct MSR access
1042 	error = est_table_info(dev, msr, &sc->freq_list, &sc->flist_len);  in est_get_info()
1044 		error = est_acpi_info(dev, &sc->freq_list, &sc->flist_len);  in est_get_info()
1046 		error = est_msr_info(dev, msr, &sc->freq_list, &sc->flist_len);  in est_get_info()
1106 			table[j].power = sets[i].power;  in est_acpi_info()
1113 	sc->acpi_settings = TRUE;  in est_acpi_info()
1134 	for (p = ESTprocs; p->id32 != 0; p++) {  in est_table_info()
1135 		if (p->vendor_id == cpu_vendor_id && p->id32 == id)  in est_table_info()
1138 	if (p->id32 == 0)  in est_table_info()
1142 	if (est_get_current(p->freqtab, p->tablen) == NULL) {  in est_table_info()
1147 	*freqs = p->freqtab;  in est_table_info()
1148 	*freqslen = p->tablen;  in est_table_info()
1167  * Flesh out a simple rate table containing the high and low frequencies
1187 		/* We may be running on the low frequency. */  in est_msr_info()
1190 		device_printf(dev, "Guessed bus clock (low) of %d MHz\n", bus);  in est_msr_info()
1199 	/* Fill out a new freq table containing just the high and low freqs. */  in est_msr_info()
1212 	fp[0].power = CPUFREQ_VAL_UNKNOWN;  in est_msr_info()
1216 	/* Second, the low frequency. */  in est_msr_info()
1227 	fp[1].power = CPUFREQ_VAL_UNKNOWN;  in est_msr_info()
1228 	device_printf(dev, "Guessed low setting of %d MHz @ %d Mv\n", freq,  in est_msr_info()
1232 	sc->msr_settings = TRUE;  in est_msr_info()
1285 			if (f->id16 == id16)  in est_get_current()
1305 	for (f = sc->freq_list; f < sc->freq_list + sc->flist_len; f++, i++) {  in est_settings()
1306 		sets[i].freq = f->freq;  in est_settings()
1307 		sets[i].volts = f->volts;  in est_settings()
1308 		sets[i].power = f->power;  in est_settings()
1325 	for (f = sc->freq_list; f < sc->freq_list + sc->flist_len; f++) {  in est_set()
1326 		if (f->freq == set->freq)  in est_set()
1329 	if (f->freq == 0)  in est_set()
1333 	est_set_id16(dev, f->id16, 0);  in est_set()
1345 	f = est_get_current(sc->freq_list, sc->flist_len);  in est_get()
1349 	set->freq = f->freq;  in est_get()
1350 	set->volts = f->volts;  in est_get()
1351 	set->power = f->power;  in est_get()
1352 	set->lat = EST_TRANS_LAT;  in est_get()
1353 	set->dev = dev;  in est_get()