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Move the poweroff handler to a separate function. Make sure it is run

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on the boot processor (cpuid == 0).  Some chipsets do not power off the
system if the shutdown handler runs on an AP.
This commit is contained in:
Nate Lawson 2004-03-19 07:05:01 +00:00
parent 4de762365a
commit eeb3a05f9a
1 changed files with 38 additions and 18 deletions

56
sys/dev/acpica/acpi.c

@ -44,6 +44,7 @@
#include <sys/linker.h>
#include <sys/power.h>
#include <sys/sbuf.h>
#include <sys/smp.h>
#include <machine/clock.h>
#include <machine/resource.h>
@ -132,6 +133,7 @@ static ACPI_STATUS acpi_probe_child(ACPI_HANDLE handle, UINT32 level,
void *context, void **status);
static void acpi_shutdown_pre_sync(void *arg, int howto);
static void acpi_shutdown_final(void *arg, int howto);
static void acpi_shutdown_poweroff(void *arg);
static void acpi_enable_fixed_events(struct acpi_softc *sc);
static void acpi_system_eventhandler_sleep(void *arg, int state);
static void acpi_system_eventhandler_wakeup(void *arg, int state);
@ -1176,30 +1178,48 @@ acpi_shutdown_pre_sync(void *arg, int howto)
static void
acpi_shutdown_final(void *arg, int howto)
{
ACPI_ASSERTLOCK;
/*
* If powering off, run the actual shutdown code on each processor.
* It will only perform the shutdown on the BSP. Some chipsets do
* not power off the system correctly if called from an AP.
*/
if ((howto & RB_POWEROFF) != 0) {
printf("Powering system off using ACPI\n");
smp_rendezvous(NULL, acpi_shutdown_poweroff, NULL, NULL);
} else {
printf("Shutting down ACPI\n");
AcpiTerminate();
}
}
static void
acpi_shutdown_poweroff(void *arg)
{
ACPI_STATUS status;
ACPI_ASSERTLOCK;
if ((howto & RB_POWEROFF) != 0) {
printf("Powering system off using ACPI\n");
status = AcpiEnterSleepStatePrep(acpi_off_state);
if (ACPI_FAILURE(status)) {
printf("AcpiEnterSleepStatePrep failed - %s\n",
AcpiFormatException(status));
return;
}
ACPI_DISABLE_IRQS();
status = AcpiEnterSleepState(acpi_off_state);
if (ACPI_FAILURE(status)) {
printf("ACPI power-off failed - %s\n", AcpiFormatException(status));
} else {
DELAY(1000000);
printf("ACPI power-off failed - timeout\n");
}
/* Only attempt to power off if this is the BSP (cpuid 0). */
if (PCPU_GET(cpuid) != 0)
return;
status = AcpiEnterSleepStatePrep(acpi_off_state);
if (ACPI_FAILURE(status)) {
printf("AcpiEnterSleepStatePrep failed - %s\n",
AcpiFormatException(status));
return;
}
ACPI_DISABLE_IRQS();
status = AcpiEnterSleepState(acpi_off_state);
if (ACPI_FAILURE(status)) {
printf("ACPI power-off failed - %s\n", AcpiFormatException(status));
} else {
printf("Shutting down ACPI\n");
AcpiTerminate();
DELAY(1000000);
printf("ACPI power-off failed - timeout\n");
}
}