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 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 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