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Queue the CPU-probing task after all acpi_cpu devices are attached.

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Eventually with earlier AP startup this code will change to call the
startup function synchronously instead of queueing the task.  Moving
the time we queue the task should be a no-op since taskqueue threads
don't start executing tasks until much later, but this reduces the diff
with the earlier AP startup patches.

Sponsored by:	Netflix
This commit is contained in:
John Baldwin 2016-04-21 18:27:05 +00:00
parent be4e639d7a
commit f8887b894c
1 changed files with 10 additions and 3 deletions
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13
sys/dev/acpica/acpi_cpu.c
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@ -355,9 +355,6 @@ acpi_cpu_attach(device_t dev)
cpu_sysctl_tree = SYSCTL_ADD_NODE(&cpu_sysctl_ctx,
SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "cpu",
CTLFLAG_RD, 0, "node for CPU children");
/* Queue post cpu-probing task handler */
AcpiOsExecute(OSL_NOTIFY_HANDLER, acpi_cpu_startup, NULL);
}
/*
@ -423,17 +420,27 @@ acpi_cpu_postattach(void *unused __unused)
device_t *devices;
int err;
int i, n;
int attached;
err = devclass_get_devices(acpi_cpu_devclass, &devices, &n);
if (err != 0) {
printf("devclass_get_devices(acpi_cpu_devclass) failed\n");
return;
}
attached = 0;
for (i = 0; i < n; i++)
if (device_is_attached(devices[i]))
attached = 1;
for (i = 0; i < n; i++)
bus_generic_probe(devices[i]);
for (i = 0; i < n; i++)
bus_generic_attach(devices[i]);
free(devices, M_TEMP);
if (attached) {
/* Queue post cpu-probing task handler */
AcpiOsExecute(OSL_NOTIFY_HANDLER, acpi_cpu_startup, NULL);
}
}
SYSINIT(acpi_cpu, SI_SUB_CONFIGURE, SI_ORDER_MIDDLE,