FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=release%2F12.3.0 2021-10-07T03:27:26Z 2021-10-07T03:27:26Z Kyle Evans kevans@FreeBSD.org 2020-01-02T22:52:31Z urn:sha1:af147ed09aa4d346b8526fb40a7016800664d33c This will soon be a dependency for machine/atomic.h on mips with the introduction of 64-bit atomics; the scope here is pretty narrow, so throw it here in the header just before systm.h, which includes machine/atomic.h (cherry picked from commit 85ccd84cb3ce35f830cd4c07154152daf41181ef) 2020-04-24T13:31:22Z Kyle Evans kevans@FreeBSD.org 2020-04-24T13:31:22Z urn:sha1:74727284b626971c5209f162f593ec65d4606b64 A later change, currently being iterated on in D24459, will in-fact change the lock type to an sx so that TTY drivers can sleep on it if they need to. Committing this ahead of time to make the review in question a little more palatable. tty_lock_assert() is unfortunately still needed for now in two places to make sure that the tty lock has not been recursed upon, for those scenarios where it's supplied by the TTY driver and possibly a mutex that is allowed to recurse. 2017-11-27T14:52:40Z Pedro F. Giffuni pfg@FreeBSD.org 2017-11-27T14:52:40Z urn:sha1:718cf2ccb9956613756ab15d7a0e28f2c8e91cab 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. 2016-08-01T16:26:08Z Landon J. Fuller landonf@FreeBSD.org 2016-08-01T16:26:08Z urn:sha1:3cbea0b15cdbb3d3ae445a47057dc4efda9af4bb Approved by: adrian (mentor) Obtained from: https://www.broadcom.com/support/communications-processors Differential Revision: https://reviews.freebsd.org/D7375 2014-10-17T17:34:05Z Davide Italiano davide@FreeBSD.org 2014-10-17T17:34:05Z urn:sha1:d9ca757cea4bc90ef070d1157da27c7fcbd88510 left over from r273174. Reported by: bz 2014-05-30T15:46:10Z John Baldwin jhb@FreeBSD.org 2014-05-30T15:46:10Z urn:sha1:f1f7034d11def7207cea9662ec6436b363123ae1 Reviewed by: imp 2013-10-29T14:19:42Z Nathan Whitehorn nwhitehorn@FreeBSD.org 2013-10-29T14:19:42Z urn:sha1:feeec74df7e5dd8521ab85428f770dd92c5cf2da resist easy conversion since they implement a great deal of their attach logic inside probe(). Some of this could be fixed by moving it to attach(), but some requires something more subtle than BUS_PROBE_NOWILDCARD. 2011-12-17T15:08:43Z Andriy Gapon avg@FreeBSD.org 2011-12-17T15:08:43Z urn:sha1:9976156f12f1be7cb85c90e9ef54be06690bc955 At the moment grab and ungrab methods of all console drivers are no-ops. Current intended meaning of the calls is that the kernel takes control of console input. In the future the semantics may be extended to mean that the calling thread takes full ownership of the console (e.g. console output from other threads could be suspended). Inspired by: bde MFC after: 2 months 2011-08-27T14:24:27Z Robert Watson rwatson@FreeBSD.org 2011-08-27T14:24:27Z urn:sha1:e5a0927394502ac7d7d0383c523490eb35f773dc improvements: (1) Implement new model in previously missed at91 UART driver (2) Move BREAK_TO_DEBUGGER and ALT_BREAK_TO_DEBUGGER from opt_comconsole.h to opt_kdb.h (spotted by np) (3) Garbage collect now-unused opt_comconsole.h MFC after: 3 weeks Approved by: re (bz) 2011-08-26T21:46:36Z Robert Watson rwatson@FreeBSD.org 2011-08-26T21:46:36Z urn:sha1:4cf75455890c103c9a66cb791e88998aafd4f8ce accessible: (1) Always compile in support for breaking into the debugger if options KDB is present in the kernel. (2) Disable both by default, but allow them to be enabled via tunables and sysctls debug.kdb.break_to_debugger and debug.kdb.alt_break_to_debugger. (3) options BREAK_TO_DEBUGGER and options ALT_BREAK_TO_DEBUGGER continue to behave as before -- only now instead of compiling in break-to-debugger support, they change the default values of the above sysctls to enable those features by default. Current kernel configurations should, therefore, continue to behave as expected. (4) Migrate alternative break-to-debugger state machine logic out of individual device drivers into centralised KDB code. This has a number of upsides, but also one downside: it's now tricky to release sio spin locks when entering the debugger, so we don't. However, similar logic does not exist in other device drivers, including uart. (5) dcons requires some special handling; unlike other console types, it allows overriding KDB's own debugger selection, so we need a new interface to KDB to allow that to work. GENERIC kernels in -CURRENT will now support break-to-debugger as long as appropriate boot/run-time options are set, which should improve the debuggability of BETA kernels significantly. MFC after: 3 weeks Reviewed by: kib, nwhitehorn Approved by: re (bz)