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 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/smp_impldefs.h> 31 #include <sys/promif.h> 32 33 #include <sys/kmem.h> 34 #include <sys/archsystm.h> 35 #include <sys/cpuvar.h> 36 #include <sys/pte.h> 37 #include <vm/seg_kmem.h> 38 #include <sys/epm.h> 39 #include <sys/cpr.h> 40 #include <sys/machsystm.h> 41 #include <sys/clock.h> 42 43 #include <sys/cpr_wakecode.h> 44 #include <sys/acpi/acpi.h> 45 46 #ifdef OLDPMCODE 47 #include "acpi.h" 48 #endif 49 50 #include <sys/x86_archext.h> 51 #include <sys/reboot.h> 52 #include <sys/cpu_module.h> 53 #include <sys/kdi.h> 54 55 /* 56 * S3 stuff 57 */ 58 59 int acpi_rtc_wake = 0x0; /* wake in N seconds */ 60 61 #if 0 /* debug */ 62 static uint8_t branchbuf[64 * 1024]; /* for the HDT branch trace stuff */ 63 #endif /* debug */ 64 65 extern int boothowto; 66 67 #define BOOTCPU 0 /* cpu 0 is always the boot cpu */ 68 69 extern void kernel_wc_code(void); 70 extern tod_ops_t *tod_ops; 71 extern int flushes_require_xcalls; 72 extern int tsc_gethrtime_enable; 73 74 extern cpuset_t cpu_ready_set; 75 extern void *(*cpu_pause_func)(void *); 76 77 /* 78 * This probably belong in apic.c, along with the save/restore stuff. 79 */ 80 static void 81 reinit_picmode(void) 82 { 83 ACPI_OBJECT_LIST arglist; 84 ACPI_OBJECT arg; 85 ACPI_STATUS status; 86 87 /* Setup parameter object */ 88 arglist.Count = 1; 89 arglist.Pointer = &arg; 90 arg.Type = ACPI_TYPE_INTEGER; 91 arg.Integer.Value = 1; 92 93 status = AcpiEvaluateObject(NULL, "\\_PIC", &arglist, NULL); 94 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { 95 PMD(PMD_SX, ("Method _PIC failed, %d\n", status)) 96 } 97 } 98 99 100 /* 101 * This is what we've all been waiting for! 102 */ 103 int 104 acpi_enter_sleepstate(s3a_t *s3ap) 105 { 106 ACPI_PHYSICAL_ADDRESS wakephys = s3ap->s3a_wakephys; 107 caddr_t wakevirt = rm_platter_va; 108 /*LINTED*/ 109 wakecode_t *wp = (wakecode_t *)wakevirt; 110 uint_t Sx = s3ap->s3a_state; 111 112 PT(PT_SWV); 113 /* Set waking vector */ 114 if (AcpiSetFirmwareWakingVector(wakephys) != AE_OK) { 115 PT(PT_SWV_FAIL); 116 PMD(PMD_SX, ("Can't SetFirmwareWakingVector(%lx)\n", 117 (long)wakephys)) 118 goto insomnia; 119 } 120 121 PT(PT_EWE); 122 /* Enable wake events */ 123 if (AcpiEnableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) { 124 PT(PT_EWE_FAIL); 125 PMD(PMD_SX, ("Can't EnableEvent(POWER_BUTTON)\n")) 126 } 127 if (acpi_rtc_wake > 0) { 128 PT(PT_RTCW); 129 if (AcpiEnableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { 130 PT(PT_RTCW_FAIL); 131 PMD(PMD_SX, ("Can't EnableEvent(RTC)\n")) 132 } 133 134 /* 135 * Set RTC to wake us in a wee while. 136 */ 137 mutex_enter(&tod_lock); 138 PT(PT_TOD); 139 TODOP_SETWAKE(tod_ops, acpi_rtc_wake); 140 mutex_exit(&tod_lock); 141 } 142 143 /* 144 * Prepare for sleep ... could've done this earlier? 145 */ 146 PT(PT_SXP); 147 PMD(PMD_SX, ("Calling AcpiEnterSleepStatePrep(%d) ...\n", Sx)) 148 if (AcpiEnterSleepStatePrep(Sx) != AE_OK) { 149 PMD(PMD_SX, ("... failed\n!")) 150 goto insomnia; 151 } 152 153 switch (s3ap->s3a_test_point) { 154 case DEVICE_SUSPEND_TO_RAM: 155 case FORCE_SUSPEND_TO_RAM: 156 case LOOP_BACK_PASS: 157 return (0); 158 case LOOP_BACK_FAIL: 159 return (1); 160 default: 161 ASSERT(s3ap->s3a_test_point == LOOP_BACK_NONE); 162 } 163 164 /* 165 * Tell the hardware to sleep. 166 */ 167 PT(PT_SXE); 168 PMD(PMD_SX, ("Calling AcpiEnterSleepState(%d) ...\n", Sx)) 169 if (AcpiEnterSleepState(Sx) != AE_OK) { 170 PT(PT_SXE_FAIL); 171 PMD(PMD_SX, ("... failed!\n")) 172 } 173 174 insomnia: 175 PT(PT_INSOM); 176 /* cleanup is done in the caller */ 177 return (1); 178 } 179 180 int 181 acpi_exit_sleepstate(s3a_t *s3ap) 182 { 183 int Sx = s3ap->s3a_state; 184 185 PT(PT_WOKE); 186 PMD(PMD_SX, ("!We woke up!\n")) 187 188 PT(PT_LSS); 189 if (AcpiLeaveSleepState(Sx) != AE_OK) { 190 PT(PT_LSS_FAIL); 191 PMD(PMD_SX, ("Problem with LeaveSleepState!\n")) 192 } 193 194 PT(PT_DPB); 195 if (AcpiDisableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) { 196 PT(PT_DPB_FAIL); 197 PMD(PMD_SX, ("Problem w/ DisableEvent(POWER_BUTTON)\n")) 198 } 199 if (acpi_rtc_wake > 0 && 200 AcpiDisableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { 201 PT(PT_DRTC_FAIL); 202 PMD(PMD_SX, ("Problem w/ DisableEvent(RTC)\n")) 203 } 204 205 PMD(PMD_SX, ("Restore state of APICs\n")) 206 207 /* Restore state of APICs */ 208 PT(PT_ACPIREINIT); 209 reinit_picmode(); 210 PT(PT_ACPIRESTORE); 211 212 PMD(PMD_SX, ("Exiting acpi_sleepstate() => 0\n")) 213 214 return (0); 215 } 216