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      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  * Copyright (c) 2009, Intel Corporation.
     27  * All rights reserved.
     28  */
     29 
     30 #ifndef	_CPUIDLE_H
     31 #define	_CPUIDLE_H
     32 
     33 #include <sys/cpupm.h>
     34 #include <sys/cpu.h>
     35 
     36 #ifdef __cplusplus
     37 extern "C" {
     38 #endif
     39 #define	CPU_MAX_CSTATES	8
     40 
     41 #define	CPU_ACPI_C0	IDLE_STATE_C0
     42 #define	CPU_ACPI_C1	IDLE_STATE_C1
     43 #define	CPU_ACPI_C2	IDLE_STATE_C2
     44 #define	CPU_ACPI_C3	IDLE_STATE_C3
     45 
     46 #define	BM_CTL		0x1
     47 #define	BM_RLD		0x2
     48 #define	BM_ARB_DIS	0x4
     49 
     50 #define	CPUID_TSC_INVARIANCE	0x100
     51 
     52 #define	CPU_IDLE_DEEP_CFG	(0x1)	/* Deep Idle disabled by user */
     53 #define	CPU_IDLE_CPR_CFG	(0x2)	/* In CPR */
     54 
     55 typedef struct cpu_idle_kstat_s {
     56 	struct kstat_named	addr_space_id;	/* register address space id */
     57 	struct kstat_named	cs_latency;	/* worst latency */
     58 	struct kstat_named	cs_power;	/* average power consumption */
     59 } cpu_idle_kstat_t;
     60 
     61 extern cpupm_state_ops_t cpu_idle_ops;
     62 
     63 extern void cpu_acpi_idle(void);
     64 extern void cstate_wakeup(cpu_t *, int);
     65 extern boolean_t cpu_deep_cstates_supported(void);
     66 extern void cpu_wakeup(cpu_t *, int);
     67 extern void cpu_wakeup_mwait(cpu_t *, int);
     68 extern void cpuidle_manage_cstates(void *);
     69 extern boolean_t cstate_timer_callback(int code);
     70 
     71 #ifdef __cplusplus
     72 }
     73 #endif
     74 
     75 #endif	/* _CPUIDLE_H */
     76