src/sys/dev/coretemp, branch releng/7.3

MFC 185295, 185341, 185343: cpu identification improvements

2009-06-30T17:10:08Z

Goal of this MFC is to minimize unnecessary code differences between head and the branch, and to improve/fix invariant TSC detection for a wide range of CPUs. 185295 by takawata: Honor AMDPM_TSC_INVARIANT for Intel CPUs (i386 only) 185341 by jkim: Introduce cpu_vendor_id... 185343 by jkim: Use newly introduced cpu_vendor_id... These revision are bundled together because all intermediate revisions have one or more of the following deficiencies: o AMDPM_TSC_INVARIANT bit (CPUID.0x80000007.EDX[8]) is not honored for Intel CPUs; o AMD-specific CPU model/revision checks are performed on Intel CPUs. Nod from: jkim

MFC r1.8:

2008-05-17T17:02:55Z

style(9): remove FreeBSD CVS ID from the initial license comment.

MFC r1.7:

2008-05-14T10:04:17Z

Change the check for cpu_high to actually match CPUID 0x06. Submitted by: Arthur Hartwig PR: 122878

MFC r1.6

2008-02-20T23:52:04Z

Don't attach to non Core CPUs. This is needed because on the PIII, querying the number of sensors returns > 0. PR: 120541 Approved by: njl (mentor)

Style nits + more reliable Tj(max) detection + improved reporting of

2007-08-23T10:53:03Z

critical temperature + sched_unbind() after rdmsr + initialize sc_dev. Submitted by: Rui Paulo , cnst Approved by: re (kensmith)

Add a driver for the on-die digital thermal sensor found on Intel Core

2007-08-15T19:26:03Z

and newer CPUs (including Core 2 and Core / Core 2 based Xeons). The driver attaches to each cpu device and creates a sysctl node in that device's sysctl context (dev.cpu.N.temperature). When invoked, the handler binds to the appropriate CPU to ensure a correct reading. Submitted by: Rui Paulo Sponsored by: Google Summer of Code 2007 Tested by: des, marcus, Constantine A. Murenin, Ian FREISLICH Approved by: re (kensmith) MFC after: 3 weeks