FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F11.3.0 2019-05-15T17:58:08Z 2019-05-15T17:58:08Z Ian Lepore ian@FreeBSD.org 2019-05-15T17:58:08Z urn:sha1:436a514aeb104d753b031345701a6f5cb0764f58 Allow dcons(4) to be unloaded when loaded as a module. When the module is unloaded, the tty devices are destroyed. That requires implementing the tsw_free callback to avoid a panic. This driver requires no particular cleanup to be done from the callback, but the module itself must remain in memory until the deferred tsw_free callbacks are invoked. These changes implement that by incrementing a reference count variable in the detach routine, and decrementing it in the tsw_free callback. The MOD_UNLOAD event handler doesn't return until the count drops to zero. PR: 237758 2018-03-29T02:50:57Z Eitan Adler eadler@FreeBSD.org 2018-03-29T02:50:57Z urn:sha1:4ab2e064d7950be84256d671a7ae93f87cc6aa36 This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re) 2018-03-14T03:19:51Z Eitan Adler eadler@FreeBSD.org 2018-03-14T03:19:51Z urn:sha1:be5d0b9566b13fdf8cabebb63334cbec12bfc409 These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg 2015-05-22T17:05:21Z Jung-uk Kim jkim@FreeBSD.org 2015-05-22T17:05:21Z urn:sha1:fd90e2ed54a69bb07d14dcd4e805431ccb7d6cb6 years for head. However, it is continuously misused as the mpsafe argument for callout_init(9). Deprecate the flag and clean up callout_init() calls to make them more consistent. Differential Revision: https://reviews.freebsd.org/D2613 Reviewed by: jhb MFC after: 2 weeks 2015-01-21T19:53:52Z Will Andrews will@FreeBSD.org 2015-01-21T19:53:52Z urn:sha1:49f159beefdb052e182816178db93c83abbfb649 Submitted by: gibbs MFC after: 1 week Sponsored by: Spectra Logic MFSpectraBSD: 1110990 on 2015/01/06 2013-02-19T18:22:25Z Alexander Motin mav@FreeBSD.org 2013-02-19T18:22:25Z urn:sha1:fd7e68271969f2a6a2b4a10cbc451c090ac276a3 Make dcons input polling adaptive, reducing poll rate to 1Hz after several minutes of inactivty to reduce global interrupt rate. Most of users never used FireWire debugging, so it is not very useful to consume power by it. 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 2011-11-07T15:43:11Z Ed Schouten ed@FreeBSD.org 2011-11-07T15:43:11Z urn:sha1:6472ac3d8a86336899b6cfb789a4cd9897e3fab5 The SYSCTL_NODE macro defines a list that stores all child-elements of that node. If there's no SYSCTL_DECL macro anywhere else, there's no reason why it shouldn't be static. 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)