cpu_idle.h revision 8906:e559381f1e2b 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#ifndef	_CPUIDLE_H
27#define	_CPUIDLE_H
28
29#include <sys/cpupm.h>
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34#define	CPU_MAX_CSTATES	8
35
36#define	CPU_ACPI_C0	0
37#define	CPU_ACPI_C1	1
38#define	CPU_ACPI_C2	2
39#define	CPU_ACPI_C3	3
40
41#define	BM_CTL		0x1
42#define	BM_RLD		0x2
43#define	BM_ARB_DIS	0x4
44
45#define	CPUID_TSC_INVARIANCE	0x100
46
47#define	CPU_IDLE_DEEP_CFG	(0x1)	/* Deep Idle disabled by user */
48#define	CPU_IDLE_CPR_CFG	(0x2)	/* In CPR */
49
50#define	CPU_CSTATE_LATENCY_UNDEF	(1000000)	/* ACPI info missing */
51
52typedef struct cpu_idle_kstat_s {
53	struct kstat_named	addr_space_id;	/* register address space id */
54	struct kstat_named	cs_latency;	/* worst latency */
55	struct kstat_named	cs_power;	/* average power consumption */
56} cpu_idle_kstat_t;
57
58extern cpupm_state_ops_t cpu_idle_ops;
59
60extern void cpu_acpi_idle(void);
61extern void cstate_wakeup(cpu_t *, int);
62extern boolean_t cpu_deep_cstates_supported(void);
63extern void cpu_wakeup(cpu_t *, int);
64extern void cpu_wakeup_mwait(cpu_t *, int);
65extern void cpu_dtrace_idle_probe(uint_t);
66extern void cpuidle_manage_cstates(void *);
67
68#ifdef __cplusplus
69}
70#endif
71
72#endif	/* _CPUIDLE_H */
73