| Commit message (Collapse) | Author | Age | Files | Lines |
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Noticed by: Coverity Prevent analysis tool
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o nuke gratuitous null ptr check; softc can never be null in this routine
Noticed by: Coverity Prevent analysis tool
Reviewed by: mdodd
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Submitted by: Mark Santcroos <marks@ripe.net>
Reviewed by: imp, dfr, bde
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Free approx 86 major numbers with a mostly automatically generated patch.
A number of strategic drivers have been left behind by caution, and a few
because they still (ab)use their major number.
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This prevents xpt_bus_register() from dereferencing NULL.
- Assign pointer to NULL after cam_sim_free().
Submitted by: Paul Twohey <twohey@CS.Stanford.EDU>
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Glanced over by: imp, gibbs
Tested by: i386 LINT
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Also some minor style cleanups.
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tree for two or more years now), except in a few places where there's
code to be compatible with older versions of FreeBSD.
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Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg.
Lockfunc allows a driver to provide a function for managing its locking
semantics while using busdma. At the moment, this is used for the
asynchronous busdma_swi and callback mechanism. Two lockfunc implementations
are provided: busdma_lock_mutex() performs standard mutex operations on the
mutex that is specified from lockfuncarg. dftl_lock() is a panic
implementation and is defaulted to when NULL, NULL are passed to
bus_dma_tag_create(). The only time that NULL, NULL should ever be used is
when the driver ensures that bus_dmamap_load() will not be deferred.
Drivers that do not provide their own locking can pass
busdma_lock_mutex,&Giant args in order to preserve the former behaviour.
sparc64 and powerpc do not provide real busdma_swi functions, so this is
largely a noop on those platforms. The busdma_swi on is64 is not properly
locked yet, so warnings will be emitted on this platform when busdma
callback deferrals happen.
If anyone gets panics or warnings from dflt_lock() being called, please
let me know right away.
Reviewed by: tmm, gibbs
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Devices below may experience a change in geometry.
* Due to a bug, aic(4) never used extended geometry. Changes all drives
>1G to now use extended translation.
* sbp(4) drives exactly 1 GB in size now no longer use extended geometry.
* umass(4) drives exactly 1 GB in size now no longer use extended geometry.
For all other controllers in this commit, this should be a no-op.
Looked over by: scottl
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BUS_DMASYNC_ definitions remain as before. The does not change the ABI,
and reverts the API to be a bit more compatible and flexible. This has
survived a full 'make universe'.
Approved by: re (bmah)
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to bus_dmasync_op_t in my last commit.
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- Sanitize dpt_alloc().
- Add helper functions for resource alloc/release.
- Add detach method.
- Relocate definition of devclass_t.
- Move some debugging output behind bootverbose.
- Implement an identify method for ISA devices
but don't use it right now.
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Approved by: trb
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Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
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Submitted by: Alan Day <alan@alanday.com>
MFC after: 2 weeks
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physical and virtual addresses.
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'int nsegments' argument to bus_dma_tag_create(). ~0ul does not fit in
an int on machines with 64 bit longs.
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conf/files) and as a result appears to have been missed in the bulk
KSE update of drivers. This change replaces references to proc
with thread. It has not been compile-tested.
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the bit-bucket.
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I could find. I have no doubt missed a couple.
Interrupt entropy harvesting is still conditional on the
kern.random.sys.harvest_interrupt sysctl.
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Compatability is not an existing english word.
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because it only takes a struct tag which makes it impossible to
use unions, typedefs etc.
Define __offsetof() in <machine/ansi.h>
Define offsetof() in terms of __offsetof() in <stddef.h> and <sys/types.h>
Remove myriad of local offsetof() definitions.
Remove includes of <stddef.h> in kernel code.
NB: Kernelcode should *never* include from /usr/include !
Make <sys/queue.h> include <machine/ansi.h> to avoid polluting the API.
Deprecate <struct.h> with a warning. The warning turns into an error on
01-12-2000 and the file gets removed entirely on 01-01-2001.
Paritials reviews by: various.
Significant brucifications by: bde
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Submitted by: Jonathan Chen <jon@spock.org>
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lives in memory and is sometimes busmastered to/from the controller.
I believe these are all ok.
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It was not discussed and should probably not happen.
Requested by: msmith and others
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the type argument to *_HEAD and *_ENTRY is a struct.
Suggested by: phk
Reviewed by: phk
Approved by: mdodd
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<sys/bio.h>.
<sys/bio.h> is now a prerequisite for <sys/buf.h> but it shall
not be made a nested include according to bdes teachings on the
subject of nested includes.
Diskdrivers and similar stuff below specfs::strategy() should no
longer need to include <sys/buf.> unless they need caching of data.
Still a few bogus uses of struct buf to track down.
Repocopy by: peter
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Due to some interesting cpp tricks in lockmgr, the LINT kernel shrinks
by 924 bytes.
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Noticed by: Manfred Antar <mantar@pacbell.net>
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- Add support for ISA based DPT adapters (this doesn't quite work yet).
- Sync dpt_eisa.c with my local copy.
- Simplify how EISA IDs are matched.
- Prototype.
- Formatting nits.
- Conform to how I do things in dpt_pci.c/dpt_isa.c.
- Modify dpt_scsi.c:dpt_alloc() to DTRT with newbus.
- Add some comments to dpt_scsi.c:dpt_pio_get_conf().
- Add additional check to dpt_scsi.c:dpt_get_conf().
- Add some useful error messages to dpt_scsi.c:dpt_init().
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if NEISA is > 0 as guaranteed by config.
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Collect together the components of several drivers and export eisa from
the i386-only area (It's not, it's on some alphas too). The code hasn't
been updated to work on the Alpha yet, but that can come later.
Repository copies were done a while ago.
Moving these now keeps them in consistant place across the 4.x series
as the newbusification progresses.
Submitted by: mdodd
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is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is consistant with the other
BSD's who made this change quite some time ago. More commits to come.
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Fix a forgotten #include
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configuration information from a DPT card at a given port.
This is needed by the ISA bus front end (still to come) and the EISA
bus front end (which hasn't ever worked).
- Blow away dpt_eisa.h as the information it contains does not justify
an additional file.
- Convert dpt_eisa.c to use the onboard config instead of trying to
read the EISA configuration registers.
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have been there in the first place. A GENERIC kernel shrinks almost 1k.
Add a slightly different safetybelt under nostop for tty drivers.
Add some missing FreeBSD tags
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Diskslice/label code not yet handled.
Vinum, i4b, alpha, pc98 not dealt with (left to respective Maintainers)
Add the correct hook for devfs to kern_conf.c
The net result of this excercise is that a lot less files depends on DEVFS,
and devtoname() gets more sensible output in many cases.
A few drivers had minor additional cleanups performed relating to cdevsw
registration.
A few drivers don't register a cdevsw{} anymore, but only use make_dev().
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minute. This should cover all of the missed cases (and should let LINT
build again).
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events, in order to pave the way for removing a number of the ad-hoc
implementations currently in use.
Retire the at_shutdown family of functions and replace them with
new event handler lists.
Rework kern_shutdown.c to take greater advantage of the use of event
handlers.
Reviewed by: green
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