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 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sys/types.h>
28 #include <sys/smp_impldefs.h>
29 #include <sys/promif.h>
30
31 #include <sys/kmem.h>
32 #include <sys/archsystm.h>
33 #include <sys/cpuvar.h>
34 #include <sys/pte.h>
35 #include <vm/seg_kmem.h>
36 #include <sys/epm.h>
37 #include <sys/cpr.h>
38 #include <sys/machsystm.h>
39 #include <sys/clock.h>
40
41 #include <sys/cpr_wakecode.h>
42 #include <sys/acpi/acpi.h>
43
44 #ifdef OLDPMCODE
45 #include "acpi.h"
46 #endif
47
48 #include <sys/x86_archext.h>
49 #include <sys/reboot.h>
50 #include <sys/cpu_module.h>
51 #include <sys/kdi.h>
52
53 /*
54 * S3 stuff
55 */
56
57 int acpi_rtc_wake = 0x0; /* wake in N seconds */
58
59 #if 0 /* debug */
60 static uint8_t branchbuf[64 * 1024]; /* for the HDT branch trace stuff */
61 #endif /* debug */
62
63 extern int boothowto;
64
65 #define BOOTCPU 0 /* cpu 0 is always the boot cpu */
66
67 extern void kernel_wc_code(void);
68 extern tod_ops_t *tod_ops;
69 extern int flushes_require_xcalls;
70 extern int tsc_gethrtime_enable;
71
72 extern cpuset_t cpu_ready_set;
73 extern void *(*cpu_pause_func)(void *);
74
75
76
77 /*
78 * This is what we've all been waiting for!
79 */
80 int
81 acpi_enter_sleepstate(s3a_t *s3ap)
82 {
83 ACPI_PHYSICAL_ADDRESS wakephys = s3ap->s3a_wakephys;
84 caddr_t wakevirt = rm_platter_va;
85 /*LINTED*/
86 wakecode_t *wp = (wakecode_t *)wakevirt;
87 uint_t Sx = s3ap->s3a_state;
88
89 PT(PT_SWV);
90 /* Set waking vector */
91 if (AcpiSetFirmwareWakingVector(wakephys) != AE_OK) {
92 PT(PT_SWV_FAIL);
93 PMD(PMD_SX, ("Can't SetFirmwareWakingVector(%lx)\n",
94 (long)wakephys))
95 goto insomnia;
96 }
97
98 PT(PT_EWE);
99 /* Enable wake events */
100 if (AcpiEnableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) {
101 PT(PT_EWE_FAIL);
102 PMD(PMD_SX, ("Can't EnableEvent(POWER_BUTTON)\n"))
103 }
104 if (acpi_rtc_wake > 0) {
105 /* clear the RTC bit first */
106 (void) AcpiWriteBitRegister(ACPI_BITREG_RT_CLOCK_STATUS, 1);
107 PT(PT_RTCW);
108 if (AcpiEnableEvent(ACPI_EVENT_RTC, 0) != AE_OK) {
109 PT(PT_RTCW_FAIL);
110 PMD(PMD_SX, ("Can't EnableEvent(RTC)\n"))
111 }
112
113 /*
114 * Set RTC to wake us in a wee while.
115 */
116 mutex_enter(&tod_lock);
117 PT(PT_TOD);
118 TODOP_SETWAKE(tod_ops, acpi_rtc_wake);
119 mutex_exit(&tod_lock);
120 }
121
122 /*
123 * Prepare for sleep ... could've done this earlier?
124 */
125 PT(PT_SXP);
126 PMD(PMD_SX, ("Calling AcpiEnterSleepStatePrep(%d) ...\n", Sx))
127 if (AcpiEnterSleepStatePrep(Sx) != AE_OK) {
128 PMD(PMD_SX, ("... failed\n!"))
129 goto insomnia;
130 }
131
132 switch (s3ap->s3a_test_point) {
133 case DEVICE_SUSPEND_TO_RAM:
134 case FORCE_SUSPEND_TO_RAM:
135 case LOOP_BACK_PASS:
136 return (0);
137 case LOOP_BACK_FAIL:
138 return (1);
139 default:
140 ASSERT(s3ap->s3a_test_point == LOOP_BACK_NONE);
141 }
142
143 /*
144 * Tell the hardware to sleep.
145 */
146 PT(PT_SXE);
147 PMD(PMD_SX, ("Calling AcpiEnterSleepState(%d) ...\n", Sx))
148 if (AcpiEnterSleepState(Sx) != AE_OK) {
149 PT(PT_SXE_FAIL);
150 PMD(PMD_SX, ("... failed!\n"))
151 }
152
153 insomnia:
154 PT(PT_INSOM);
155 /* cleanup is done in the caller */
156 return (1);
157 }
158
159 int
160 acpi_exit_sleepstate(s3a_t *s3ap)
161 {
162 int Sx = s3ap->s3a_state;
163
164 PT(PT_WOKE);
165 PMD(PMD_SX, ("!We woke up!\n"))
166
167 PT(PT_LSS);
168 if (AcpiLeaveSleepState(Sx) != AE_OK) {
169 PT(PT_LSS_FAIL);
170 PMD(PMD_SX, ("Problem with LeaveSleepState!\n"))
171 }
172
173 PT(PT_CPB);
174 if (AcpiClearEvent(ACPI_EVENT_POWER_BUTTON) != AE_OK) {
175 PT(PT_CPB_FAIL);
176 PMD(PMD_SX, ("Problem w/ ClearEvent(POWER_BUTTON)\n"))
177 }
178 if (acpi_rtc_wake > 0 &&
179 AcpiDisableEvent(ACPI_EVENT_RTC, 0) != AE_OK) {
180 PT(PT_DRTC_FAIL);
181 PMD(PMD_SX, ("Problem w/ DisableEvent(RTC)\n"))
182 }
183
184 PMD(PMD_SX, ("Exiting acpi_sleepstate() => 0\n"))
185
186 return (0);
187 }