cpu_acpi.h revision 5611:2d3721177784 
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_TRANSLAT(pstate)	pstate->ps_translat
51#define	CPU_ACPI_CTRL(pstate)		pstate->ps_ctrl
52#define	CPU_ACPI_STAT(pstate)		pstate->ps_state
53
54#define	CPU_ACPI_NONE_CACHED		0x00
55#define	CPU_ACPI_PCT_CACHED		0x01
56#define	CPU_ACPI_PSS_CACHED		0x02
57#define	CPU_ACPI_PSD_CACHED		0x04
58#define	CPU_ACPI_PPC_CACHED		0x08
59
60#define	CPU_ACPI_IS_OBJ_CACHED(sp, obj)	(sp->cpu_acpi_cached & obj)
61#define	CPU_ACPI_OBJ_IS_CACHED(sp, obj)	(sp->cpu_acpi_cached |= obj)
62#define	CPU_ACPI_OBJ_IS_NOT_CACHED(sp, obj) (sp->cpu_acpi_cached &= ~obj)
63
64/*
65 * Container for _PSD information
66 */
67typedef struct cpu_acpi_psd
68{
69	uint8_t pd_entries;
70	uint8_t pd_revision;
71	uint32_t pd_domain;
72	uint32_t pd_type;
73	uint32_t pd_num;
74} cpu_acpi_psd_t;
75
76/*
77 * Container for _PCT information
78 */
79typedef struct cpu_acpi_pct
80{
81	uint8_t pc_addrspace_id;
82	uint8_t pc_width;
83	uint8_t pc_offset;
84	uint8_t pc_asize;
85	ACPI_IO_ADDRESS pc_address;
86} cpu_acpi_pct_t;
87
88/*
89 * Containers for _PSS information
90 */
91typedef struct cpu_acpi_pstate
92{
93	uint32_t ps_freq;
94	uint32_t ps_disp;
95	uint32_t ps_translat;
96	uint32_t ps_buslat;
97	uint32_t ps_ctrl;
98	uint32_t ps_state;
99} cpu_acpi_pstate_t;
100
101typedef struct cpu_acpi_pstates {
102	cpu_acpi_pstate_t *pss_pstates;
103	uint32_t pss_count;
104} cpu_acpi_pstates_t;
105
106typedef int cpu_acpi_ppc_t;
107
108/*
109 * Container for cached ACPI data.
110 */
111typedef struct cpu_acpi_state {
112	ACPI_HANDLE cs_handle;
113	dev_info_t *cs_dip;
114	uint_t cpu_acpi_cached;
115	cpu_acpi_pstates_t *cs_pstates;
116	cpu_acpi_pct_t cs_pct[2];
117	cpu_acpi_psd_t cs_psd;
118	cpu_acpi_ppc_t cs_ppc;
119} cpu_acpi_state_t;
120
121typedef cpu_acpi_state_t *cpu_acpi_handle_t;
122
123extern cpu_acpi_handle_t cpu_acpi_init(dev_info_t *);
124extern void cpu_acpi_fini(cpu_acpi_handle_t);
125extern int cpu_acpi_cache_pstates(cpu_acpi_handle_t);
126extern int cpu_acpi_cache_pct(cpu_acpi_handle_t);
127extern int cpu_acpi_cache_psd(cpu_acpi_handle_t);
128extern void cpu_acpi_cache_ppc(cpu_acpi_handle_t);
129extern int cpu_acpi_cache_data(cpu_acpi_handle_t);
130extern void cpu_acpi_install_ppc_handler(cpu_acpi_handle_t,
131    ACPI_NOTIFY_HANDLER, dev_info_t *);
132extern int cpu_acpi_write_pdc(cpu_acpi_handle_t, uint32_t, uint32_t,
133    uint32_t *);
134extern int cpu_acpi_write_port(ACPI_IO_ADDRESS, uint32_t, uint32_t);
135extern int cpu_acpi_read_port(ACPI_IO_ADDRESS, uint32_t *, uint32_t);
136extern uint_t cpu_acpi_get_speeds(cpu_acpi_handle_t, int **);
137extern void cpu_acpi_free_speeds(int *, uint_t);
138
139#ifdef __cplusplus
140}
141#endif
142
143#endif	/* _CPU_ACPI_H */
144