xref: /titanic_52/usr/src/uts/i86pc/sys/cpu_idle.h (revision fb2caebe9e38ee2e6e469d5136fb247faaa7299b)
10e751525SEric Saxe /*
20e751525SEric Saxe  * CDDL HEADER START
30e751525SEric Saxe  *
40e751525SEric Saxe  * The contents of this file are subject to the terms of the
50e751525SEric Saxe  * Common Development and Distribution License (the "License").
60e751525SEric Saxe  * You may not use this file except in compliance with the License.
70e751525SEric Saxe  *
80e751525SEric Saxe  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90e751525SEric Saxe  * or http://www.opensolaris.org/os/licensing.
100e751525SEric Saxe  * See the License for the specific language governing permissions
110e751525SEric Saxe  * and limitations under the License.
120e751525SEric Saxe  *
130e751525SEric Saxe  * When distributing Covered Code, include this CDDL HEADER in each
140e751525SEric Saxe  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150e751525SEric Saxe  * If applicable, add the following below this CDDL HEADER, with the
160e751525SEric Saxe  * fields enclosed by brackets "[]" replaced with your own identifying
170e751525SEric Saxe  * information: Portions Copyright [yyyy] [name of copyright owner]
180e751525SEric Saxe  *
190e751525SEric Saxe  * CDDL HEADER END
200e751525SEric Saxe  */
210e751525SEric Saxe /*
220e751525SEric Saxe  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
230e751525SEric Saxe  * Use is subject to license terms.
240e751525SEric Saxe  */
25cef70d2cSBill Holler /*
26cef70d2cSBill Holler  * Copyright (c) 2009, Intel Corporation.
27cef70d2cSBill Holler  * All rights reserved.
28cef70d2cSBill Holler  */
290e751525SEric Saxe 
300e751525SEric Saxe #ifndef	_CPUIDLE_H
310e751525SEric Saxe #define	_CPUIDLE_H
320e751525SEric Saxe 
330e751525SEric Saxe #include <sys/cpupm.h>
34*fb2caebeSRandy Fishel #include <sys/cpu.h>
350e751525SEric Saxe 
360e751525SEric Saxe #ifdef __cplusplus
370e751525SEric Saxe extern "C" {
380e751525SEric Saxe #endif
390e751525SEric Saxe #define	CPU_MAX_CSTATES	8
400e751525SEric Saxe 
41*fb2caebeSRandy Fishel #define	CPU_ACPI_C0	IDLE_STATE_C0
42*fb2caebeSRandy Fishel #define	CPU_ACPI_C1	IDLE_STATE_C1
43*fb2caebeSRandy Fishel #define	CPU_ACPI_C2	IDLE_STATE_C2
44*fb2caebeSRandy Fishel #define	CPU_ACPI_C3	IDLE_STATE_C3
450e751525SEric Saxe 
460e751525SEric Saxe #define	BM_CTL		0x1
470e751525SEric Saxe #define	BM_RLD		0x2
480e751525SEric Saxe #define	BM_ARB_DIS	0x4
490e751525SEric Saxe 
500e751525SEric Saxe #define	CPUID_TSC_INVARIANCE	0x100
510e751525SEric Saxe 
520e751525SEric Saxe #define	CPU_IDLE_DEEP_CFG	(0x1)	/* Deep Idle disabled by user */
530e751525SEric Saxe #define	CPU_IDLE_CPR_CFG	(0x2)	/* In CPR */
540e751525SEric Saxe 
550e751525SEric Saxe typedef struct cpu_idle_kstat_s {
560e751525SEric Saxe 	struct kstat_named	addr_space_id;	/* register address space id */
570e751525SEric Saxe 	struct kstat_named	cs_latency;	/* worst latency */
580e751525SEric Saxe 	struct kstat_named	cs_power;	/* average power consumption */
590e751525SEric Saxe } cpu_idle_kstat_t;
600e751525SEric Saxe 
610e751525SEric Saxe extern cpupm_state_ops_t cpu_idle_ops;
620e751525SEric Saxe 
630e751525SEric Saxe extern void cpu_acpi_idle(void);
640e751525SEric Saxe extern void cstate_wakeup(cpu_t *, int);
650e751525SEric Saxe extern boolean_t cpu_deep_cstates_supported(void);
660e751525SEric Saxe extern void cpu_wakeup(cpu_t *, int);
670e751525SEric Saxe extern void cpu_wakeup_mwait(cpu_t *, int);
680e751525SEric Saxe extern void cpuidle_manage_cstates(void *);
69cef70d2cSBill Holler extern boolean_t cstate_timer_callback(int code);
700e751525SEric Saxe 
710e751525SEric Saxe #ifdef __cplusplus
720e751525SEric Saxe }
730e751525SEric Saxe #endif
740e751525SEric Saxe 
750e751525SEric Saxe #endif	/* _CPUIDLE_H */
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