src/sys/dev/sio, branch release/8.1.0FreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=release%2F8.1.02009-03-09T13:23:54Zremove now-redunant cardbus attachment.2009-03-09T13:23:54ZWarner Loshimp@FreeBSD.org2009-03-09T13:23:54Zurn:sha1:155a83e87ada23dc65476957d310cdf309a16c7bAllow device hints to wire the unit numbers of devices.2008-11-18T21:01:54ZJohn Baldwinjhb@FreeBSD.org2008-11-18T21:01:54Zurn: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
Add a note about a bug in how sio manages its softc. This was2008-10-08T08:08:03ZWarner Loshimp@FreeBSD.org2008-10-08T08:08:03Zurn: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...
Expand kdb_alt_break a little, most commonly used with the option2008-05-04T23:29:38ZPeter Wemmpeter@FreeBSD.org2008-05-04T23:29:38Zurn: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.
Add a new 'why' argument to kdb_enter(), and a set of constants to use2007-12-25T17:52:02ZRobert Watsonrwatson@FreeBSD.org2007-12-25T17:52:02Zurn:sha1:3de213cc00f2889d2cd693968fd38c10a7f5def1
for that argument. This will allow DDB to detect the broad category of
reason why the debugger has been entered, which it can use for the
purposes of deciding which DDB script to run.
Assign approximate why values to all current consumers of the
kdb_enter() interface.
Stop serial console and gdb serial port from getting all screwed up.2007-12-05T05:16:56ZJulian Elischerjulian@FreeBSD.org2007-12-05T05:16:56Zurn:sha1:abc3f1d24bb366f0c813ae7f177a81e11649889d
PR: 65278
MFC in: 3 days
Submitted by: ups@
Allow the sio acpi attachment to be disabled (ie: use hints only). This2007-11-30T21:45:07ZPeter Wemmpeter@FreeBSD.org2007-11-30T21:45:07Zurn:sha1:3e3d9737c71cf979d40816835143961926bc64f2
hack means you can get the units and flags to match up more easily with
serial consoles on machines with acpi tables that cause the com ports
to be probed in the wrong order (and hence get the wrong sio unit number).
This replaces the common alternative hack of editing the code to comment
out the acpi attachment. This could go away entirely when device wiring
patches are committed.
Add sio_puc_kludge_unit() to stop sio devices originating from puc2007-11-30T21:36:12ZPeter Wemmpeter@FreeBSD.org2007-11-30T21:36:12Zurn:sha1:585484b918b236bccc6c1c18a3948193dcf5313e
stomping on the units intended for the motherboard sio ports. This is
no real substitute for the not-yet-committed device wiring enhancements.
Code taken from sio's pci attachment.
Spelling fix for interupt -> interrupt2007-10-12T06:03:46ZKevin Lokevlo@FreeBSD.org2007-10-12T06:03:46Zurn:sha1:976b010645ac346df4ca903f7d880be7a2216f46o Revert last. The chip is already supported by puc(4).2007-03-29T04:26:52ZMaxim Konovalovmaxim@FreeBSD.org2007-03-29T04:26:52Zurn:sha1:991555c9c020ea166d02a6e295dce1fea6b934af
Pointed out by: marcel, Joseph Terner