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 2008 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 (void) AcpiSetRegister(ACPI_BITREG_RT_CLOCK_STATUS, 1, 129 ACPI_MTX_DO_NOT_LOCK); /* clear the RTC bit first */ 130 PT(PT_RTCW); 131 if (AcpiEnableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { 132 PT(PT_RTCW_FAIL); 133 PMD(PMD_SX, ("Can't EnableEvent(RTC)\n")) 134 } 135 136 /* 137 * Set RTC to wake us in a wee while. 138 */ 139 mutex_enter(&tod_lock); 140 PT(PT_TOD); 141 TODOP_SETWAKE(tod_ops, acpi_rtc_wake); 142 mutex_exit(&tod_lock); 143 } 144 145 /* 146 * Prepare for sleep ... could've done this earlier? 147 */ 148 PT(PT_SXP); 149 PMD(PMD_SX, ("Calling AcpiEnterSleepStatePrep(%d) ...\n", Sx)) 150 if (AcpiEnterSleepStatePrep(Sx) != AE_OK) { 151 PMD(PMD_SX, ("... failed\n!")) 152 goto insomnia; 153 } 154 155 switch (s3ap->s3a_test_point) { 156 case DEVICE_SUSPEND_TO_RAM: 157 case FORCE_SUSPEND_TO_RAM: 158 case LOOP_BACK_PASS: 159 return (0); 160 case LOOP_BACK_FAIL: 161 return (1); 162 default: 163 ASSERT(s3ap->s3a_test_point == LOOP_BACK_NONE); 164 } 165 166 /* 167 * Tell the hardware to sleep. 168 */ 169 PT(PT_SXE); 170 PMD(PMD_SX, ("Calling AcpiEnterSleepState(%d) ...\n", Sx)) 171 if (AcpiEnterSleepState(Sx) != AE_OK) { 172 PT(PT_SXE_FAIL); 173 PMD(PMD_SX, ("... failed!\n")) 174 } 175 176 insomnia: 177 PT(PT_INSOM); 178 /* cleanup is done in the caller */ 179 return (1); 180 } 181 182 int 183 acpi_exit_sleepstate(s3a_t *s3ap) 184 { 185 int Sx = s3ap->s3a_state; 186 187 PT(PT_WOKE); 188 PMD(PMD_SX, ("!We woke up!\n")) 189 190 PT(PT_LSS); 191 if (AcpiLeaveSleepState(Sx) != AE_OK) { 192 PT(PT_LSS_FAIL); 193 PMD(PMD_SX, ("Problem with LeaveSleepState!\n")) 194 } 195 196 PT(PT_DPB); 197 if (AcpiDisableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) { 198 PT(PT_DPB_FAIL); 199 PMD(PMD_SX, ("Problem w/ DisableEvent(POWER_BUTTON)\n")) 200 } 201 if (acpi_rtc_wake > 0 && 202 AcpiDisableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { 203 PT(PT_DRTC_FAIL); 204 PMD(PMD_SX, ("Problem w/ DisableEvent(RTC)\n")) 205 } 206 207 PMD(PMD_SX, ("Restore state of APICs\n")) 208 209 /* Restore state of APICs */ 210 PT(PT_ACPIREINIT); 211 reinit_picmode(); 212 PT(PT_ACPIRESTORE); 213 214 PMD(PMD_SX, ("Exiting acpi_sleepstate() => 0\n")) 215 216 return (0); 217 } 218