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 extern void *(*cpu_pause_func)(void *); 74 75 76 77 /* 78 * This is what we've all been waiting for! 79 */ 80 int 81 acpi_enter_sleepstate(s3a_t *s3ap) 82 { 83 ACPI_PHYSICAL_ADDRESS wakephys = s3ap->s3a_wakephys; 84 caddr_t wakevirt = rm_platter_va; 85 /*LINTED*/ 86 wakecode_t *wp = (wakecode_t *)wakevirt; 87 uint_t Sx = s3ap->s3a_state; 88 89 PT(PT_SWV); 90 /* Set waking vector */ 91 if (AcpiSetFirmwareWakingVector(wakephys) != AE_OK) { 92 PT(PT_SWV_FAIL); 93 PMD(PMD_SX, ("Can't SetFirmwareWakingVector(%lx)\n", 94 (long)wakephys)) 95 goto insomnia; 96 } 97 98 PT(PT_EWE); 99 /* Enable wake events */ 100 if (AcpiEnableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) { 101 PT(PT_EWE_FAIL); 102 PMD(PMD_SX, ("Can't EnableEvent(POWER_BUTTON)\n")) 103 } 104 if (acpi_rtc_wake > 0) { 105 /* clear the RTC bit first */ 106 (void) AcpiWriteBitRegister(ACPI_BITREG_RT_CLOCK_STATUS, 1); 107 PT(PT_RTCW); 108 if (AcpiEnableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { 109 PT(PT_RTCW_FAIL); 110 PMD(PMD_SX, ("Can't EnableEvent(RTC)\n")) 111 } 112 113 /* 114 * Set RTC to wake us in a wee while. 115 */ 116 mutex_enter(&tod_lock); 117 PT(PT_TOD); 118 TODOP_SETWAKE(tod_ops, acpi_rtc_wake); 119 mutex_exit(&tod_lock); 120 } 121 122 /* 123 * Prepare for sleep ... could've done this earlier? 124 */ 125 PT(PT_SXP); 126 PMD(PMD_SX, ("Calling AcpiEnterSleepStatePrep(%d) ...\n", Sx)) 127 if (AcpiEnterSleepStatePrep(Sx) != AE_OK) { 128 PMD(PMD_SX, ("... failed\n!")) 129 goto insomnia; 130 } 131 132 switch (s3ap->s3a_test_point) { 133 case DEVICE_SUSPEND_TO_RAM: 134 case FORCE_SUSPEND_TO_RAM: 135 case LOOP_BACK_PASS: 136 return (0); 137 case LOOP_BACK_FAIL: 138 return (1); 139 default: 140 ASSERT(s3ap->s3a_test_point == LOOP_BACK_NONE); 141 } 142 143 /* 144 * Tell the hardware to sleep. 145 */ 146 PT(PT_SXE); 147 PMD(PMD_SX, ("Calling AcpiEnterSleepState(%d) ...\n", Sx)) 148 if (AcpiEnterSleepState(Sx) != AE_OK) { 149 PT(PT_SXE_FAIL); 150 PMD(PMD_SX, ("... failed!\n")) 151 } 152 153 insomnia: 154 PT(PT_INSOM); 155 /* cleanup is done in the caller */ 156 return (1); 157 } 158 159 int 160 acpi_exit_sleepstate(s3a_t *s3ap) 161 { 162 int Sx = s3ap->s3a_state; 163 164 PT(PT_WOKE); 165 PMD(PMD_SX, ("!We woke up!\n")) 166 167 PT(PT_LSS); 168 if (AcpiLeaveSleepState(Sx) != AE_OK) { 169 PT(PT_LSS_FAIL); 170 PMD(PMD_SX, ("Problem with LeaveSleepState!\n")) 171 } 172 173 PT(PT_CPB); 174 if (AcpiClearEvent(ACPI_EVENT_POWER_BUTTON) != AE_OK) { 175 PT(PT_CPB_FAIL); 176 PMD(PMD_SX, ("Problem w/ ClearEvent(POWER_BUTTON)\n")) 177 } 178 if (acpi_rtc_wake > 0 && 179 AcpiDisableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { 180 PT(PT_DRTC_FAIL); 181 PMD(PMD_SX, ("Problem w/ DisableEvent(RTC)\n")) 182 } 183 184 PMD(PMD_SX, ("Exiting acpi_sleepstate() => 0\n")) 185 186 return (0); 187 } 188