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 * Copyright 2016, Joyent, Inc.
26 */
27
28 #include <sys/types.h>
29 #include <sys/smp_impldefs.h>
30 #include <sys/promif.h>
31
32 #include <sys/kmem.h>
33 #include <sys/archsystm.h>
34 #include <sys/cpuvar.h>
35 #include <sys/pte.h>
36 #include <vm/seg_kmem.h>
37 #include <sys/epm.h>
38 #include <sys/cpr.h>
39 #include <sys/machsystm.h>
40 #include <sys/clock.h>
41
42 #include <sys/cpr_wakecode.h>
43 #include <sys/acpi/acpi.h>
44
45 #ifdef OLDPMCODE
46 #include "acpi.h"
47 #endif
48
49 #include <sys/x86_archext.h>
50 #include <sys/reboot.h>
51 #include <sys/cpu_module.h>
52 #include <sys/kdi.h>
53
54 /*
55 * S3 stuff
56 */
57
58 int acpi_rtc_wake = 0x0; /* wake in N seconds */
59
60 #if 0 /* debug */
61 static uint8_t branchbuf[64 * 1024]; /* for the HDT branch trace stuff */
62 #endif /* debug */
63
64 extern int boothowto;
65
66 #define BOOTCPU 0 /* cpu 0 is always the boot cpu */
67
68 extern void kernel_wc_code(void);
69 extern tod_ops_t *tod_ops;
70 extern int flushes_require_xcalls;
71 extern int tsc_gethrtime_enable;
72
73 extern cpuset_t cpu_ready_set;
74
75
76 /*
77 * This is what we've all been waiting for!
78 */
79 int
acpi_enter_sleepstate(s3a_t * s3ap)80 acpi_enter_sleepstate(s3a_t *s3ap)
81 {
82 ACPI_PHYSICAL_ADDRESS wakephys = s3ap->s3a_wakephys;
83 caddr_t wakevirt = rm_platter_va;
84 /*LINTED*/
85 wakecode_t *wp = (wakecode_t *)wakevirt;
86 uint_t Sx = s3ap->s3a_state;
87
88 PT(PT_SWV);
89 /* Set waking vector */
90 if (AcpiSetFirmwareWakingVector(wakephys, NULL) != AE_OK) {
91 PT(PT_SWV_FAIL);
92 PMD(PMD_SX, ("Can't SetFirmwareWakingVector(%lx)\n",
93 (long)wakephys))
94 goto insomnia;
95 }
96
97 PT(PT_EWE);
98 /* Enable wake events */
99 if (AcpiEnableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) {
100 PT(PT_EWE_FAIL);
101 PMD(PMD_SX, ("Can't EnableEvent(POWER_BUTTON)\n"))
102 }
103 if (acpi_rtc_wake > 0) {
104 /* clear the RTC bit first */
105 (void) AcpiWriteBitRegister(ACPI_BITREG_RT_CLOCK_STATUS, 1);
106 PT(PT_RTCW);
107 if (AcpiEnableEvent(ACPI_EVENT_RTC, 0) != AE_OK) {
108 PT(PT_RTCW_FAIL);
109 PMD(PMD_SX, ("Can't EnableEvent(RTC)\n"))
110 }
111
112 /*
113 * Set RTC to wake us in a wee while.
114 */
115 mutex_enter(&tod_lock);
116 PT(PT_TOD);
117 TODOP_SETWAKE(tod_ops, acpi_rtc_wake);
118 mutex_exit(&tod_lock);
119 }
120
121 /*
122 * Prepare for sleep ... could've done this earlier?
123 */
124 PT(PT_SXP);
125 PMD(PMD_SX, ("Calling AcpiEnterSleepStatePrep(%d) ...\n", Sx))
126 if (AcpiEnterSleepStatePrep(Sx) != AE_OK) {
127 PMD(PMD_SX, ("... failed\n!"))
128 goto insomnia;
129 }
130
131 switch (s3ap->s3a_test_point) {
132 case DEVICE_SUSPEND_TO_RAM:
133 case FORCE_SUSPEND_TO_RAM:
134 case LOOP_BACK_PASS:
135 return (0);
136 case LOOP_BACK_FAIL:
137 return (1);
138 default:
139 ASSERT(s3ap->s3a_test_point == LOOP_BACK_NONE);
140 }
141
142 /*
143 * Tell the hardware to sleep.
144 */
145 PT(PT_SXE);
146 PMD(PMD_SX, ("Calling AcpiEnterSleepState(%d) ...\n", Sx))
147 if (AcpiEnterSleepState(Sx) != AE_OK) {
148 PT(PT_SXE_FAIL);
149 PMD(PMD_SX, ("... failed!\n"))
150 }
151
152 insomnia:
153 PT(PT_INSOM);
154 /* cleanup is done in the caller */
155 return (1);
156 }
157
158 int
acpi_exit_sleepstate(s3a_t * s3ap)159 acpi_exit_sleepstate(s3a_t *s3ap)
160 {
161 int Sx = s3ap->s3a_state;
162
163 PT(PT_WOKE);
164 PMD(PMD_SX, ("!We woke up!\n"))
165
166 PT(PT_LSS);
167 if (AcpiLeaveSleepStatePrep(Sx) != AE_OK) {
168 PT(PT_LSS_FAIL);
169 PMD(PMD_SX, ("Problem with LeaveSleepState!\n"))
170 }
171
172 if (AcpiLeaveSleepState(Sx) != AE_OK) {
173 PT(PT_LSS_FAIL);
174 PMD(PMD_SX, ("Problem with LeaveSleepState!\n"))
175 }
176
177 PT(PT_CPB);
178 if (AcpiClearEvent(ACPI_EVENT_POWER_BUTTON) != AE_OK) {
179 PT(PT_CPB_FAIL);
180 PMD(PMD_SX, ("Problem w/ ClearEvent(POWER_BUTTON)\n"))
181 }
182 if (acpi_rtc_wake > 0 &&
183 AcpiDisableEvent(ACPI_EVENT_RTC, 0) != AE_OK) {
184 PT(PT_DRTC_FAIL);
185 PMD(PMD_SX, ("Problem w/ DisableEvent(RTC)\n"))
186 }
187
188 PMD(PMD_SX, ("Exiting acpi_sleepstate() => 0\n"))
189
190 return (0);
191 }
192