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