hwpmc: remove unused pre-table driven bits for intel

Intel now provides comprehensive tables for all performance counters
and the various valid configuration permutations as text .json files.
Libpmc

hwpmc: remove unused pre-table driven bits for intel

Intel now provides comprehensive tables for all performance counters
and the various valid configuration permutations as text .json files.
Libpmc has been converted to use these and hwpmc_core has been greatly
simplified by moving to passthrough of the table values.

The one gotcha is that said tables don't support pentium pro and and pentium
IV. There's very few users of hwpmc on _amd64_ kernels on new hardware. It is
unlikely that anyone is doing low level optimization on 15 year old Intel
hardware. Nonetheless, if someone feels strongly enough to populate the
corresponding tables for p4 and ppro I will reinstate the files in to the
build.

Code for the K8 counters and !x86 architectures remains unchanged.

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

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

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

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.

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Merge ^/head r323559 through r325504.

MFhead@r324837

While here, diff reduce some of the changes in sys/boot by moving
MK_COVERAGE=no to sys/boot/Makefile.inc .

o Support for Kabylake CPU PMCs (fall down to PMC_CPU_INTEL_SKYLAKE).
o Fix bugs in events descriptions for Skylake, Skylake Xeon and Haswell.

Reviewed by: kib
Sponsored by: DARPA, AFRL
Differential

o Support for Kabylake CPU PMCs (fall down to PMC_CPU_INTEL_SKYLAKE).
o Fix bugs in events descriptions for Skylake, Skylake Xeon and Haswell.

Reviewed by: kib
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D12654

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MFH @ r323558.

MFhead@r323343

Skylake server core PMC support for hwpmc(4).

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Hardware provided by: Intel
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.o

Skylake server core PMC support for hwpmc(4).

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Hardware provided by: Intel
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D12221

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Merge ^/head r319801 through r320041.

Fix event table for Cortex A9.

Removed events 0x8 (INSTR_EXECUTED), 0xE (PC_PROC_RETURN) and
0x13-0x1d not supported on Cortex A9.
Add events 0x68 and 0x6E which replaced 0x8 and 0xE.

Submitted by:

Fix event table for Cortex A9.

Removed events 0x8 (INSTR_EXECUTED), 0xE (PC_PROC_RETURN) and
0x13-0x1d not supported on Cortex A9.
Add events 0x68 and 0x6E which replaced 0x8 and 0xE.

Submitted by: Michal Mazur <mkm@semihalf.com>
Obtained from: Semihalf
Sponsored by: Stormshield, Netgate
Differential revision: https://reviews.freebsd.org/D10911

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sys/dev: minor spelling fixes.

Most affect comments, very few have user-visible effects.

MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head.

Add support for Intel Skylake and Intel Broadwell PMC's. The Broadwell PMC's have been
tested on the Broadwell-Xeon with a hacked up version of pmcstudy -T. I still need
to circle back and add in to

Add support for Intel Skylake and Intel Broadwell PMC's. The Broadwell PMC's have been
tested on the Broadwell-Xeon with a hacked up version of pmcstudy -T. I still need
to circle back and add in to pmcstudy all the new tests from the Broadwell Vtune
guide (for the hacked up version I just made it so I could run the -T option). The
Skylake CPU is not yet available (even though Intel is advertising it .. imagine that).
The Skylake PMC's will need to be tested once we can get a sample skylake CPU :-)

Sponsored by: Netflix Inc.

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Catch up with head (r291075).

Merge from head

Sponsored by: Gandi.net

Merge from head

MFH to r289370

Sponsored by: The FreeBSD Foundation

Now that we can detect the Cortex-A8 properly, fix the event list
according to the Cortex-A8 TRM r3p2 section 3.2.49.
The A8 list differs from the "ARM-v7 common" list, given the A8
was an earlier mo

Now that we can detect the Cortex-A8 properly, fix the event list
according to the Cortex-A8 TRM r3p2 section 3.2.49.
The A8 list differs from the "ARM-v7 common" list, given the A8
was an earlier model.

There is still more work to be done for other Cortex-Ax version as
andrew points out, but I am just trying to fix A8 for now for teaching.

MFC after: 2 weeks
Sponsored by: DARPA/AFRL
Obtained from: Cambridge/L41
Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D3876

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Catch up with HEAD (r280229-r284686).

Merge ^/head r284188 through r284643.

Merge from head

o Rework ARMv7 events list using aliases - same way as we have for arm64.
o Extend it with Cortex A9-specific events.

MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation

Merge sync of head