Remove the old p4tcc.

1 files changed, 0 insertions, 270 deletions

diff --git a/sys/i386/i386/p4tcc.c b/sys/i386/i386/p4tcc.c
deleted file mode 100644
index e3e0a03..0000000
--- a/sys/i386/i386/p4tcc.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*	$OpenBSD: p4tcc.c,v 1.1 2003/12/20 18:23:18 tedu Exp $ */
-/*-
- * Copyright (c) 2003 Ted Unangst
- * Copyright (c) 2004 Maxim Sobolev <sobomax@FreeBSD.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided 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.
- */
-/*
- * Restrict power consumption by using thermal control circuit.
- * This operates independently of speedstep.
- * Found on Pentium 4 and later models (feature TM).
- *
- * References:
- * Intel Developer's manual v.3 #245472-012
- *
- * On some models, the cpu can hang if it's running at a slow speed.
- * Workarounds included below.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "opt_cpu.h"
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/conf.h>
-#include <sys/power.h>
-#include <sys/sysctl.h>
-#include <sys/types.h>
-
-#include <machine/md_var.h>
-#include <machine/specialreg.h>
-
-static u_int			p4tcc_percentage;
-static u_int			p4tcc_economy;
-static u_int			p4tcc_performance;
-static struct sysctl_ctx_list	p4tcc_sysctl_ctx;
-static struct sysctl_oid	*p4tcc_sysctl_tree;
-
-static struct {
-	u_short level;
-	u_short rlevel;
-	u_short reg;
-} tcc[] = {
-	{ 88, 100, 0 },
-	{ 75, 88,  7 },
-	{ 63, 75,  6 },
-	{ 50, 63,  5 },
-	{ 38, 50,  4 },
-	{ 25, 38,  3 },
-	{ 13, 25,  2 },
-	{ 0,  13,  1 }
-};
-
-#define TCC_LEVELS	sizeof(tcc) / sizeof(tcc[0])
-
-static u_short
-p4tcc_getperf(void)
-{
-	u_int64_t msreg;
-	int i;
-
-	msreg = rdmsr(MSR_THERM_CONTROL);
-	msreg = (msreg >> 1) & 0x07;
-	for (i = 0; i < TCC_LEVELS; i++) {
-		if (msreg == tcc[i].reg)
-			break;
-	}
-
-	return (tcc[i].rlevel);
-}
-
-static void
-p4tcc_setperf(u_int percentage)
-{
-	int i;
-	u_int64_t msreg;
-
-	if (percentage > tcc[0].rlevel)
-		percentage = tcc[0].rlevel;
-	for (i = 0; i < TCC_LEVELS - 1; i++) {
-		if (percentage > tcc[i].level)
-			break;
-	}
-
-	msreg = rdmsr(MSR_THERM_CONTROL);
-	msreg &= ~0x1e;	/* bit 0 reserved */
-	if (tcc[i].reg != 0)
-		msreg |= tcc[i].reg << 1 | 1 << 4;
-	wrmsr(MSR_THERM_CONTROL, msreg);
-}
-
-static int
-p4tcc_perf_sysctl(SYSCTL_HANDLER_ARGS)
-{
-	u_int percentage;
-	int error;
-
-	p4tcc_percentage = p4tcc_getperf();
-	percentage = p4tcc_percentage;
-	error = sysctl_handle_int(oidp, &percentage, 0, req);
-	if (error || !req->newptr) {
-		return (error);
-	}
-	if (p4tcc_percentage != percentage) {
-		p4tcc_setperf(percentage);
-	}
-
-	return (error);
-}
-
-static void
-p4tcc_power_profile(void *arg)
-{
-	u_int new;
-
-	switch (power_profile_get_state()) {
-	case POWER_PROFILE_PERFORMANCE:
-		new = p4tcc_performance;
-		break;
-	case POWER_PROFILE_ECONOMY:
-		new = p4tcc_economy;
-		break;
-	default:
-		return;
-	}
-
-	if (p4tcc_getperf() != new) {
-		p4tcc_setperf(new);
-	}
-}
-
-static int
-p4tcc_profile_sysctl(SYSCTL_HANDLER_ARGS)
-{
-	u_int32_t *argp;
-	u_int32_t arg;
-	int error;
-
-	argp = (u_int32_t *)oidp->oid_arg1;
-	arg = *argp;
-	error = sysctl_handle_int(oidp, &arg, 0, req);
-
-	/* error or no new value */
-	if ((error != 0) || (req->newptr == NULL))
-		return (error);
-
-	/* range check */
-	if (arg > tcc[0].rlevel)
-		arg = tcc[0].rlevel;
-
-	/* set new value and possibly switch */
-	*argp = arg;
-
-	p4tcc_power_profile(NULL);
-
-	*argp = p4tcc_getperf();
-
-	return (0);
-}
-
-static void
-setup_p4tcc(void *dummy __unused)
-{
-	int nsteps, i;
-	static char p4tcc_levels[(3 * TCC_LEVELS) + 1];
-	char buf[4 + 1];
-
-	if ((cpu_feature & (CPUID_ACPI | CPUID_TM)) !=
-	    (CPUID_ACPI | CPUID_TM))
-		return;
-
-	nsteps = TCC_LEVELS;
-	switch (cpu_id & 0xf) {
-	case 0x22:	/* errata O50 P44 and Z21 */
-	case 0x24:
-	case 0x25:
-	case 0x27:
-	case 0x29:
-		/* hang with 12.5 */
-		tcc[TCC_LEVELS - 1] = tcc[TCC_LEVELS - 2];
-		nsteps -= 1;
-		break;
-	case 0x07:	/* errata N44 and P18 */
-	case 0x0a:
-	case 0x12:
-	case 0x13:
-		/* hang at 12.5 and 25 */
-		tcc[TCC_LEVELS - 1] = tcc[TCC_LEVELS - 2] = tcc[TCC_LEVELS - 3];
-		nsteps -= 2;
-		break;
-	default:
-		break;
-	}
-
-	p4tcc_levels[0] = '\0';
-	for (i = nsteps; i > 0; i--) {
-	    sprintf(buf, "%d%s", tcc[i - 1].rlevel, (i != 1) ? " " : "");
-	    strcat(p4tcc_levels, buf);
-	}
-
-	p4tcc_economy = tcc[TCC_LEVELS - 1].rlevel;
-	p4tcc_performance = tcc[0].rlevel;
-
-	/*
-	 * Since after the reboot the TCC is usually in the Automatic
-	 * mode, in which reading current performance level is likely to
-	 * produce bogus results make sure to switch it to the On-Demand
-	 * mode and set to some known performance level. Unfortunately
-	 * there is no reliable way to check that TCC is in the Automatic
-	 * mode, reading bit 4 of ACPI Thermal Monitor Control Register
-	 * produces 0 regardless of the current mode.
-	 */
-	p4tcc_setperf(p4tcc_performance);
-
-	p4tcc_percentage = p4tcc_getperf();
-	printf("Pentium 4 TCC support enabled, %d steps from 100%% to %d%%, "
-	    "current performance %u%%\n", nsteps, p4tcc_economy,
-	    p4tcc_percentage);
-
-	sysctl_ctx_init(&p4tcc_sysctl_ctx);
-	p4tcc_sysctl_tree = SYSCTL_ADD_NODE(&p4tcc_sysctl_ctx,
-	    SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, "p4tcc", CTLFLAG_RD, 0,
-	    "Pentium 4 Thermal Control Circuitry support");
-	SYSCTL_ADD_PROC(&p4tcc_sysctl_ctx,
-	    SYSCTL_CHILDREN(p4tcc_sysctl_tree), OID_AUTO,
-	    "cpuperf", CTLTYPE_INT | CTLFLAG_RW,
-	    &p4tcc_percentage, 0, p4tcc_perf_sysctl, "I",
-	    "CPU performance in % of maximum");
-	SYSCTL_ADD_PROC(&p4tcc_sysctl_ctx,
-	    SYSCTL_CHILDREN(p4tcc_sysctl_tree), OID_AUTO,
-	    "cpuperf_performance", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_RW,
-	    &p4tcc_performance, 0, p4tcc_profile_sysctl, "I",
-	    "CPU performance in % of maximum in Performance mode");
-	SYSCTL_ADD_PROC(&p4tcc_sysctl_ctx,
-	    SYSCTL_CHILDREN(p4tcc_sysctl_tree), OID_AUTO,
-	    "cpuperf_economy", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_RW,
-	    &p4tcc_economy, 0, p4tcc_profile_sysctl, "I",
-	    "CPU performance in % of maximum in Economy mode");
-	SYSCTL_ADD_STRING(&p4tcc_sysctl_ctx,
-	    SYSCTL_CHILDREN(p4tcc_sysctl_tree), OID_AUTO,
-	    "cpuperf_levels", CTLFLAG_RD, p4tcc_levels, 0,
-	    "Perormance levels supported by the Pentium 4 Thermal Control "
-	    "Circuitry");
-
-	/* register performance profile change handler */
-	EVENTHANDLER_REGISTER(power_profile_change, p4tcc_power_profile, NULL, 0);
-}
-SYSINIT(setup_p4tcc, SI_SUB_CPU, SI_ORDER_ANY, setup_p4tcc, NULL);