cpu_acpi.h revision 4667:2cb417b1d90c 
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 2007 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#ifndef	_CPU_ACPI_H
27#define	_CPU_ACPI_H
28
29#pragma ident	"%Z%%M%	%I%	%E% SMI"
30
31#include <sys/acpi/acpi.h>
32#include <sys/acpi/acresrc.h>
33#include <sys/acpi/acglobal.h>
34#include <sys/acpica.h>
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40#define	CPU_ACPI_PPC(sp)		sp->cs_ppc
41#define	CPU_ACPI_PSD(sp)		sp->cs_psd
42#define	CPU_ACPI_PCT(sp)		sp->cs_pct
43#define	CPU_ACPI_PCT_CTRL(sp)		&sp->cs_pct[0]
44#define	CPU_ACPI_PCT_STATUS(sp)		&sp->cs_pct[1]
45#define	CPU_ACPI_PSTATES(sp)		sp->cs_pstates->pss_pstates
46#define	CPU_ACPI_PSTATES_COUNT(sp)	sp->cs_pstates->pss_count
47
48#define	CPU_ACPI_PSTATE(sp, i)		&sp->cs_pstates->pss_pstates[i]
49#define	CPU_ACPI_FREQ(pstate)		pstate->ps_freq
50#define	CPU_ACPI_CTRL(pstate)		pstate->ps_ctrl
51#define	CPU_ACPI_STAT(pstate)		pstate->ps_state
52
53#define	CPU_ACPI_NONE_CACHED		0x00
54#define	CPU_ACPI_PCT_CACHED		0x01
55#define	CPU_ACPI_PSS_CACHED		0x02
56#define	CPU_ACPI_PSD_CACHED		0x04
57#define	CPU_ACPI_PPC_CACHED		0x08
58
59#define	CPU_ACPI_IS_OBJ_CACHED(sp, obj)	(sp->cpu_acpi_cached & obj)
60#define	CPU_ACPI_OBJ_IS_CACHED(sp, obj)	(sp->cpu_acpi_cached |= obj)
61#define	CPU_ACPI_OBJ_IS_NOT_CACHED(sp, obj) (sp->cpu_acpi_cached &= ~obj)
62
63/*
64 * Container for _PSD information
65 */
66typedef struct cpu_acpi_psd
67{
68	uint8_t pd_entries;
69	uint8_t pd_revision;
70	uint32_t pd_domain;
71	uint32_t pd_type;
72	uint32_t pd_num;
73} cpu_acpi_psd_t;
74
75/*
76 * Container for _PCT information
77 */
78typedef struct cpu_acpi_pct
79{
80	uint8_t pc_addrspace_id;
81	uint8_t pc_width;
82	uint8_t pc_offset;
83	uint8_t pc_asize;
84	ACPI_IO_ADDRESS pc_address;
85} cpu_acpi_pct_t;
86
87/*
88 * Containers for _PSS information
89 */
90typedef struct cpu_acpi_pstate
91{
92	uint32_t ps_freq;
93	uint32_t ps_disp;
94	uint32_t ps_translat;
95	uint32_t ps_buslat;
96	uint32_t ps_ctrl;
97	uint32_t ps_state;
98} cpu_acpi_pstate_t;
99
100typedef struct cpu_acpi_pstates {
101	cpu_acpi_pstate_t *pss_pstates;
102	uint32_t pss_count;
103} cpu_acpi_pstates_t;
104
105typedef int cpu_acpi_ppc_t;
106
107/*
108 * Container for cached ACPI data.
109 */
110typedef struct cpu_acpi_state {
111	ACPI_HANDLE cs_handle;
112	dev_info_t *cs_dip;
113	uint_t cpu_acpi_cached;
114	cpu_acpi_pstates_t *cs_pstates;
115	cpu_acpi_pct_t cs_pct[2];
116	cpu_acpi_psd_t cs_psd;
117	cpu_acpi_ppc_t cs_ppc;
118} cpu_acpi_state_t;
119
120typedef cpu_acpi_state_t *cpu_acpi_handle_t;
121
122extern cpu_acpi_handle_t cpu_acpi_init(dev_info_t *);
123extern void cpu_acpi_fini(cpu_acpi_handle_t);
124extern int cpu_acpi_cache_pstates(cpu_acpi_handle_t);
125extern int cpu_acpi_cache_pct(cpu_acpi_handle_t);
126extern int cpu_acpi_cache_psd(cpu_acpi_handle_t);
127extern void cpu_acpi_cache_ppc(cpu_acpi_handle_t);
128extern int cpu_acpi_cache_data(cpu_acpi_handle_t);
129extern void cpu_acpi_install_ppc_handler(cpu_acpi_handle_t,
130    ACPI_NOTIFY_HANDLER, dev_info_t *);
131extern int cpu_acpi_write_pdc(cpu_acpi_handle_t, uint32_t, uint32_t,
132    uint32_t *);
133extern int cpu_acpi_write_port(ACPI_IO_ADDRESS, uint32_t, uint32_t);
134extern int cpu_acpi_read_port(ACPI_IO_ADDRESS, uint32_t *, uint32_t);
135extern uint_t cpu_acpi_get_speeds(cpu_acpi_handle_t, int **);
136extern void cpu_acpi_free_speeds(int *, uint_t);
137
138#ifdef __cplusplus
139}
140#endif
141
142#endif	/* _CPU_ACPI_H */
143