src/sys/dev/cpufreq/ichss.c, branch releng/14.2

sys: Remove $FreeBSD$: one-line .c pattern

2023-08-16T17:54:36+00:00

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-05-12T16:44:03+00:00

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix

cpufreq: Remove unused devclass arguments to DRIVER_MODULE.

2022-05-06T22:39:29+00:00

sys/dev: further adoption of SPDX licensing ID tags.

2017-11-27T14:52:40+00:00

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Add a quirk to disable this driver for certain older laptops with an ICH2

2013-02-26T18:30:47+00:00

southbridge and an Intel 82815_MC host bridge where the host bridge's
revision is less than 5.

Tested by:	mi
MFC after:	1 week

Use DEVMETHOD_END macro defined in sys/bus.h instead of {0, 0} sentinel on device_method_t arrays

2013-01-30T18:01:20+00:00

Reviewed by:	cognet
Approved by:	cognet

Attach the cpufreq child devices with specific orders to enforce relative

2008-08-13T16:09:40+00:00

priority of some of the drivers that manage the same state (e.g. ichss0
vs est0).  Specifically, powernow, est, and p4tcc are added at order 10,
ichss at order 20, and smist at order 30.  Previously, some laptops were
seeing both ichss0 and est0 attaching and stomping on each other.

XXX: This isn't quite ideal, but works with the existing hacks, I think
what we really want instead is a single "speedstep0" device for CPUs
that the ichss, est, and smist drivers probe (but with differing
priorities).

MFC after:	1 week

Probe CPUs after the PCI hierarchy on i386, amd64, and ia64. This allows

2008-03-10T22:18:07+00:00

the cpufreq drivers to reliably use properties of PCI devices for quirks,
etc.
- For the legacy drivers, add CPU devices via an identify routine in the
  CPU driver itself rather than in the legacy driver's attach routine.
- Add CPU devices after Host-PCI bridges in the acpi bus driver.
- Change the ichss(4) driver to use pci_find_bsf() to locate the ICH and
  check its device ID rather than having a bogus PCI attachment that only
  checked for the ID in probe and always failed.  As a side effect, you
  can now kldload ichss after boot.
- Fix the ichss(4) driver to use the correct device_t for the ICH (and not
  for ichss0) when doing PCI config space operations to enable SpeedStep.

MFC after:	2 weeks
Reviewed by:	njl, Andriy Gapon  avg of icyb.net.ua

Since DELAY() was moved, most #includes have been

2006-05-16T14:37:58+00:00

unnecessary.

Only activate ICH speedstep if we're going to use it. No bugs were observed

2005-03-20T01:25:21+00:00

due to this but it's cleaner this way.