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/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 extern void *(*cpu_pause_func)(void *); 75 76 /* 77 * This probably belong in apic.c, along with the save/restore stuff. 78 */ 79 static void 80 reinit_picmode(void) 81 { 82 ACPI_OBJECT_LIST arglist; 83 ACPI_OBJECT arg; 84 ACPI_STATUS status; 85 86 /* Setup parameter object */ 87 arglist.Count = 1; 88 arglist.Pointer = &arg; 89 arg.Type = ACPI_TYPE_INTEGER; 90 arg.Integer.Value = 1; 91 92 status = AcpiEvaluateObject(NULL, "\\_PIC", &arglist, NULL); 93 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { 94 PMD(PMD_SX, ("Method _PIC failed, %d\n", status)) 95 } 96 } 97 98 99 /* 100 * This is what we've all been waiting for! 101 */ 102 int 103 acpi_enter_sleepstate(s3a_t *s3ap) 104 { 105 ACPI_PHYSICAL_ADDRESS wakephys = s3ap->s3a_wakephys; 106 caddr_t wakevirt = rm_platter_va; 107 /*LINTED*/ 108 wakecode_t *wp = (wakecode_t *)wakevirt; 109 uint_t Sx = s3ap->s3a_state; 110 111 PT(PT_SWV); 112 /* Set waking vector */ 113 if (AcpiSetFirmwareWakingVector(wakephys) != AE_OK) { 114 PT(PT_SWV_FAIL); 115 PMD(PMD_SX, ("Can't SetFirmwareWakingVector(%lx)\n", 116 (long)wakephys)) 117 goto insomnia; 118 } 119 120 PT(PT_EWE); 121 /* Enable wake events */ 122 if (AcpiEnableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) { 123 PT(PT_EWE_FAIL); 124 PMD(PMD_SX, ("Can't EnableEvent(POWER_BUTTON)\n")) 125 } 126 if (acpi_rtc_wake > 0) { 127 PT(PT_RTCW); 128 if (AcpiEnableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { 129 PT(PT_RTCW_FAIL); 130 PMD(PMD_SX, ("Can't EnableEvent(RTC)\n")) 131 } 132 133 /* 134 * Set RTC to wake us in a wee while. 135 */ 136 mutex_enter(&tod_lock); 137 PT(PT_TOD); 138 TODOP_SETWAKE(tod_ops, acpi_rtc_wake); 139 mutex_exit(&tod_lock); 140 } 141 142 /* 143 * Prepare for sleep ... could've done this earlier? 144 */ 145 PT(PT_SXP); 146 PMD(PMD_SX, ("Calling AcpiEnterSleepStatePrep(%d) ...\n", Sx)) 147 if (AcpiEnterSleepStatePrep(Sx) != AE_OK) { 148 PMD(PMD_SX, ("... failed\n!")) 149 goto insomnia; 150 } 151 152 switch (s3ap->s3a_test_point) { 153 case DEVICE_SUSPEND_TO_RAM: 154 case LOOP_BACK_PASS: 155 return (0); 156 case LOOP_BACK_FAIL: 157 return (1); 158 default: 159 ASSERT(s3ap->s3a_test_point == LOOP_BACK_NONE || 160 s3ap->s3a_test_point == FORCE_SUSPEND_TO_RAM); 161 } 162 163 /* 164 * Tell the hardware to sleep. 165 */ 166 PT(PT_SXE); 167 PMD(PMD_SX, ("Calling AcpiEnterSleepState(%d) ...\n", Sx)) 168 if (AcpiEnterSleepState(Sx) != AE_OK) { 169 PT(PT_SXE_FAIL); 170 PMD(PMD_SX, ("... failed!\n")) 171 } 172 173 insomnia: 174 PT(PT_INSOM); 175 /* cleanup is done in the caller */ 176 return (1); 177 } 178 179 int 180 acpi_exit_sleepstate(s3a_t *s3ap) 181 { 182 int Sx = s3ap->s3a_state; 183 184 PT(PT_WOKE); 185 PMD(PMD_SX, ("!We woke up!\n")) 186 187 PT(PT_LSS); 188 if (AcpiLeaveSleepState(Sx) != AE_OK) { 189 PT(PT_LSS_FAIL); 190 PMD(PMD_SX, ("Problem with LeaveSleepState!\n")) 191 } 192 193 PT(PT_DPB); 194 if (AcpiDisableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) { 195 PT(PT_DPB_FAIL); 196 PMD(PMD_SX, ("Problem w/ DisableEvent(POWER_BUTTON)\n")) 197 } 198 if (acpi_rtc_wake > 0 && 199 AcpiDisableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { 200 PT(PT_DRTC_FAIL); 201 PMD(PMD_SX, ("Problem w/ DisableEvent(RTC)\n")) 202 } 203 204 PMD(PMD_SX, ("Restore state of APICs\n")) 205 206 /* Restore state of APICs */ 207 PT(PT_ACPIREINIT); 208 reinit_picmode(); 209 PT(PT_ACPIRESTORE); 210 211 PMD(PMD_SX, ("Exiting acpi_sleepstate() => 0\n")) 212 213 return (0); 214 } 215