src-test/sys/sparc64/include, branch main

Remove sparc64 kernel support

2020-02-03T17:35:11Z

Remove all sparc64 specific files Remove all sparc64 ifdefs Removee indireeect sparc64 ifdefs

Introduce vm_page_astate.

2019-12-10T18:14:50Z

This is a 32-bit structure embedded in each vm_page, consisting mostly of page queue state. The use of a structure makes it easy to store a snapshot of a page's queue state in a stack variable and use cmpset loops to update that state without requiring the page lock. This change merely adds the structure and updates references to atomic state fields. No functional change intended. Reviewed by: alc, jeff, kib Sponsored by: Netflix, Intel Differential Revision: https://reviews.freebsd.org/D22650

Regularize my copyright notice

2019-12-04T16:56:11Z

o Remove All Rights Reserved from my notices o imp@FreeBSD.org everywhere o regularize punctiation, eliminate date ranges o Make sure that it's clear that I don't claim All Rights reserved by listing All Rights Reserved on same line as other copyright holders (but not me). Other such holders are also listed last where it's clear.

Port r353622 to sparc64 and arm v4.

2019-10-16T21:07:18Z

Noted by: alc Reviewed by: alc, jeff, markj Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D22056

sparc64: use generic sub-word atomic *cmpset

2019-10-02T17:08:20Z

Most of this diff is refactoring to reduce duplication between the different acq_ and rel_ variants. Differential Revision: https://reviews.freebsd.org/D21822

Centralize __pcpu definitions.

2019-08-29T07:25:27Z

Many extern struct pcpu __pcpu declarations were copied/pasted in sources. The issue is that the definition is MD, but it cannot be provided by machine/pcpu.h due to actual struct pcpu defined in sys/pcpu.h later than the inclusion of machine/pcpu.h. This forced the copying when other code needed direct access to __pcpu. There is no way around it, due to machine/pcpu.h supplying part of struct pcpu fields. To work around the problem, add a new machine/pcpu_aux.h header, which should fill any needed MD definitions after struct pcpu definition is completed. This allows to remove copies of __pcpu spread around the source. Also on x86 it makes it possible to remove work arounds like OFFSETOF_CURTHREAD or clang specific warnings supressions. Reported and tested by: lwhsu, bcran Reviewed by: imp, markj (previous version) Discussed with: jhb Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D21418

Move phys_avail definition into MI code. It is consumed in the MI layer and

2019-08-16T00:45:14Z

doing so adds more flexibility with less redundant code. Reviewed by: jhb, markj, kib Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D21250

amd64 KPTI: add control from procctl(2).

2019-03-16T11:44:33Z

Add the infrastructure to allow MD procctl(2) commands, and use it to introduce amd64 PTI control and reporting. PTI mode cannot be modified for existing pmap, the knob controls PTI of the new vmspace created on exec. Requested by: jhb Reviewed by: jhb, markj (previous version) Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D19514

Add kernel support for Intel userspace protection keys feature on

2019-02-20T09:51:13Z

Skylake Xeons. See SDM rev. 68 Vol 3 4.6.2 Protection Keys and the description of the RDPKRU and WRPKRU instructions. Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D18893

Add a KPI for the delay while spinning on a spin lock.

2018-11-05T21:34:17Z

Replace a call to DELAY(1) with a new cpu_lock_delay() KPI. Currently cpu_lock_delay() is defined to DELAY(1) on all platforms. However, platforms with a DELAY() implementation that uses spin locks should implement a custom cpu_lock_delay() doesn't use locks. Reviewed by: kib MFC after: 3 days