acpi_cpu: Make device unit numbers match OS CPU IDs.

There are already APIC ID, ACPI ID and OS ID for each CPU.  In perfect
world all of those may match, but at least for SuperMicro server boards
none of them do.  Plus none of them match the CPU devices listing order
by ACPI.  Previous code used the ACPI device listing order to number
cpuX devices.  It looked nice from NewBus perspective, but introduced
4th different set of IDs. Extremely confusing one, since in some places
the device unit numbers were treated as OS CPU IDs (coretemp), but not
in others (sysctl dev.cpu.X.%location).

1 files changed, 1 insertions, 6 deletions

diff --git a/share/man/man4/acpi.4 b/share/man/man4/acpi.4
index bf3f5f4d4128..60d77843b340 100644
--- a/share/man/man4/acpi.4
+++ b/share/man/man4/acpi.4
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd May 9, 2015
+.Dd September 24, 2021
 .Dt ACPI 4
 .Os
 .Sh NAME
@@ -210,11 +210,6 @@ entry for access after boot.
 Enables loading of a custom ACPI DSDT.
 .It Va acpi_dsdt_name
 Name of the DSDT table to load, if loading is enabled.
-.It Va debug.acpi.cpu_unordered
-Do not use the MADT to match ACPI Processor objects to CPUs.
-This is needed on a few systems with a buggy BIOS that does not use
-consistent processor IDs.
-Default is 0 (disabled).
 .It Va debug.acpi.disabled
 Selectively disables portions of ACPI for debugging purposes.
 .It Va debug.acpi.interpreter_slack