FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F9.2.0 2012-12-20T04:16:25Z 2012-12-20T04:16:25Z Eitan Adler eadler@FreeBSD.org 2012-12-20T04:16:25Z urn:sha1:9193d03d62c4e22f222623c2d49c25bc2740fc0f Add support for CIR1000 - Cirrus Logic V34 to the sio driver PR: kern/44267 Approved by: cperciva (implicit) 2012-05-13T17:04:46Z Andriy Gapon avg@FreeBSD.org 2012-05-13T17:04:46Z urn:sha1:33a662c963044ea3fcc5293a131e9da2abe506fe kernel 2012-01-10T00:26:54Z Eitan Adler eadler@FreeBSD.org 2012-01-10T00:26:54Z urn:sha1:18b370afdfd7accaf24f5d3cb64a85f7134239c3 - add support for Broadcom 802.11bg/EDGE/GPRS CardBus (Serial) - correct mislabeling of 0x432214e4 device PR: kern/119606 Approved by: jhb 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) 2011-02-08T00:16:36Z Matthew D Fleming mdf@FreeBSD.org 2011-02-08T00:16:36Z urn:sha1:e7ceb1e99b88b9aedbfa17871819c1cabd2761e3 - entirely eliminate some calls to uio_yeild() as being unnecessary, such as in a sysctl handler. - move should_yield() and maybe_yield() to kern_synch.c and move the prototypes from sys/uio.h to sys/proc.h - add a slightly more generic kern_yield() that can replace the functionality of uio_yield(). - replace source uses of uio_yield() with the functional equivalent, or in some cases do not change the thread priority when switching. - fix a logic inversion bug in vlrureclaim(), pointed out by bde@. - instead of using the per-cpu last switched ticks, use a per thread variable for should_yield(). With PREEMPTION, the only reasonable use of this is to determine if a lock has been held a long time and relinquish it. Without PREEMPTION, this is essentially the same as the per-cpu variable. 2009-03-09T13:23:54Z Warner Losh imp@FreeBSD.org 2009-03-09T13:23:54Z urn:sha1:155a83e87ada23dc65476957d310cdf309a16c7b 2008-11-18T21:01:54Z John Baldwin jhb@FreeBSD.org 2008-11-18T21:01:54Z urn:sha1:0d484d249f35fa0a471300e3a7f5a629aab472f8 - An "at" hint now reserves a device name. - A new BUS_HINT_DEVICE_UNIT method is added to the bus interface. When determining the unit number of a device, this method is invoked to let the bus driver specify the unit of a device given a specific devclass. This is the only way a device can be given a name reserved via an "at" hint. - Implement BUS_HINT_DEVICE_UNIT() for the acpi(4) and isa(4) bus drivers. Both of these busses implement this by comparing the resources for a given hint device with the resources enumerated by ACPI/PnPBIOS and wire a unit if the hint resources are a subset of the "real" resources. - Use bus_hinted_children() for adding hinted devices on isa(4) busses now instead of doing it by hand. - Remove the unit kludging from sio(4) as it is no longer necessary. Prodding from: peter, imp OK'd by: marcel MFC after: 1 month 2008-10-08T08:08:03Z Warner Losh imp@FreeBSD.org 2008-10-08T08:08:03Z urn:sha1:e21f22596b9d779275d4c7fd4982e49639c6a266 discovered by Dorr H. Clark. I'm not at all sure how to fix it, but wanted to document it at the very least... 2008-05-04T23:29:38Z Peter Wemm peter@FreeBSD.org 2008-05-04T23:29:38Z urn:sha1:43d7128c1450d36af259094b7cf39c0c4d17908c ALT_BREAK_TO_DEBUGGER. In addition to "Enter ~ ctrl-B" (to enter the debugger), there is now "Enter ~ ctrl-P" (force panic) and "Enter ~ ctrl-R" (request clean reboot, ala ctrl-alt-del on syscons). We've used variations of this at work. The force panic sequence is best used with KDB_UNATTENDED for when you just want it to dump and get on with it. The reboot request is a safer way of getting into single user than a power cycle. eg: you've hosed the ability to log in (pam, rtld, etc). It gives init the reboot signal, which causes an orderly reboot. I've taken my best guess at what the !x86 and non-sio code changes should be. This also makes sio release its spinlock before calling KDB/DDB.