diff options
Diffstat (limited to 'usr/src/uts/i86pc/io/ppm/acpisleep.c')
| -rw-r--r-- | usr/src/uts/i86pc/io/ppm/acpisleep.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/usr/src/uts/i86pc/io/ppm/acpisleep.c b/usr/src/uts/i86pc/io/ppm/acpisleep.c new file mode 100644 index 0000000000..d1ab6c5c34 --- /dev/null +++ b/usr/src/uts/i86pc/io/ppm/acpisleep.c @@ -0,0 +1,214 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/types.h> +#include <sys/smp_impldefs.h> +#include <sys/promif.h> + +#include <sys/kmem.h> +#include <sys/archsystm.h> +#include <sys/cpuvar.h> +#include <sys/pte.h> +#include <vm/seg_kmem.h> +#include <sys/epm.h> +#include <sys/machsystm.h> +#include <sys/clock.h> + +#include <sys/cpr_wakecode.h> +#include <sys/acpi/acpi.h> + +#ifdef OLDPMCODE +#include "acpi.h" +#endif + +#include <sys/x86_archext.h> +#include <sys/reboot.h> +#include <sys/cpu_module.h> +#include <sys/kdi.h> + +/* + * S3 stuff + */ + +int acpi_rtc_wake = 0x0; /* wake in N seconds */ + +#if 0 /* debug */ +static uint8_t branchbuf[64 * 1024]; /* for the HDT branch trace stuff */ +#endif /* debug */ + +extern int boothowto; + +#define BOOTCPU 0 /* cpu 0 is always the boot cpu */ + +extern void kernel_wc_code(void); +extern tod_ops_t *tod_ops; +extern int flushes_require_xcalls; +extern int tsc_gethrtime_enable; + +extern cpuset_t cpu_ready_set; +extern void *(*cpu_pause_func)(void *); + +/* + * This probably belong in apic.c, along with the save/restore stuff. + */ +static void +reinit_picmode(void) +{ + ACPI_OBJECT_LIST arglist; + ACPI_OBJECT arg; + ACPI_STATUS status; + + /* Setup parameter object */ + arglist.Count = 1; + arglist.Pointer = &arg; + arg.Type = ACPI_TYPE_INTEGER; + arg.Integer.Value = 1; + + status = AcpiEvaluateObject(NULL, "\\_PIC", &arglist, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + PMD(PMD_SX, ("Method _PIC failed, %d\n", status)) + } +} + + +/* + * This is what we've all been waiting for! + */ +int +acpi_enter_sleepstate(s3a_t *s3ap) +{ + ACPI_PHYSICAL_ADDRESS wakephys = s3ap->s3a_wakephys; + caddr_t wakevirt = rm_platter_va; + /*LINTED*/ + wakecode_t *wp = (wakecode_t *)wakevirt; + uint_t Sx = s3ap->s3a_state; + + PT(PT_SWV); + /* Set waking vector */ + if (AcpiSetFirmwareWakingVector(wakephys) != AE_OK) { + PT(PT_SWV_FAIL); + PMD(PMD_SX, ("Can't SetFirmwareWakingVector(%lx)\n", + (long)wakephys)) + goto insomnia; + } + + PT(PT_EWE); + /* Enable wake events */ + if (AcpiEnableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) { + PT(PT_EWE_FAIL); + PMD(PMD_SX, ("Can't EnableEvent(POWER_BUTTON)\n")) + } + if (acpi_rtc_wake > 0) { + PT(PT_RTCW); + if (AcpiEnableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { + PT(PT_RTCW_FAIL); + PMD(PMD_SX, ("Can't EnableEvent(RTC)\n")) + } + + /* + * Set RTC to wake us in a wee while. + */ + mutex_enter(&tod_lock); + PT(PT_TOD); + TODOP_SETWAKE(tod_ops, acpi_rtc_wake); + mutex_exit(&tod_lock); + } + + /* + * Prepare for sleep ... could've done this earlier? + */ + PT(PT_SXP); + PMD(PMD_SX, ("Calling AcpiEnterSleepStatePrep(%d) ...\n", Sx)) + if (AcpiEnterSleepStatePrep(Sx) != AE_OK) { + PMD(PMD_SX, ("... failed\n!")) + goto insomnia; + } + + switch (s3ap->s3a_test_point) { + case DEVICE_SUSPEND_TO_RAM: + case LOOP_BACK_PASS: + return (0); + case LOOP_BACK_FAIL: + return (1); + default: + ASSERT(s3ap->s3a_test_point == LOOP_BACK_NONE || + s3ap->s3a_test_point == FORCE_SUSPEND_TO_RAM); + } + + /* + * Tell the hardware to sleep. + */ + PT(PT_SXE); + PMD(PMD_SX, ("Calling AcpiEnterSleepState(%d) ...\n", Sx)) + if (AcpiEnterSleepState(Sx) != AE_OK) { + PT(PT_SXE_FAIL); + PMD(PMD_SX, ("... failed!\n")) + } + +insomnia: + PT(PT_INSOM); + /* cleanup is done in the caller */ + return (1); +} + +int +acpi_exit_sleepstate(s3a_t *s3ap) +{ + int Sx = s3ap->s3a_state; + + PT(PT_WOKE); + PMD(PMD_SX, ("!We woke up!\n")) + + PT(PT_LSS); + if (AcpiLeaveSleepState(Sx) != AE_OK) { + PT(PT_LSS_FAIL); + PMD(PMD_SX, ("Problem with LeaveSleepState!\n")) + } + + PT(PT_DPB); + if (AcpiDisableEvent(ACPI_EVENT_POWER_BUTTON, 0) != AE_OK) { + PT(PT_DPB_FAIL); + PMD(PMD_SX, ("Problem w/ DisableEvent(POWER_BUTTON)\n")) + } + if (acpi_rtc_wake > 0 && + AcpiDisableEvent(ACPI_EVENT_RTC, 0) != AE_OK) { + PT(PT_DRTC_FAIL); + PMD(PMD_SX, ("Problem w/ DisableEvent(RTC)\n")) + } + + PMD(PMD_SX, ("Restore state of APICs\n")) + + /* Restore state of APICs */ + PT(PT_ACPIREINIT); + reinit_picmode(); + PT(PT_ACPIRESTORE); + + PMD(PMD_SX, ("Exiting acpi_sleepstate() => 0\n")) + + return (0); +} |