shared page. Revert x86_disable_intr/x86_enable_intr to plain function
calls on XENPV.
While there, clean up unused functions and macros, and change cli()/sti()
macros to x86_disable_intr/x86_enable_intr.
Makes Xen domU boot again
(http://www-soc.lip6.fr/~bouyer/NetBSD-tests/xen/HEAD/)
- use db_read_bytes() to avoid faults.
- quite a few functions do not use frame pointers,
therefore always detect stack depth without a frame pointer.
however, since the framepointer(=r14) is used as a trapframe,
the code to detect the frame pointer is still needed.
- dump the contents of trapframe during backtracing.
- KNF
Lock printer functions (lockops_t#lo_dump) use printf_nolog to print, but
printf_nolog now prepends a timestamp which is unnecessary for ddb:
db{0}> show all locks/t
[Locks tracked through LWPs]
Locks held by an LWP (iperf):
Lock 0 (initialized at soinit)
lock address : 0xffffedeb84b06080 type : sleep/adaptive
initialized : 0xffffffff806d8c3f
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 11
current cpu : 0 last held: 1
current lwp : 0xffffedeb849ff040 last held: 0xffffedeb7dfdb240
last locked* : 0xffffffff806d8335 unlocked : 0xffffffff806d8385
[ 79103.0868574] owner field : 0xffffedeb7dfdb240 wait/spin: 1/0
Fix it by passing a printer function to lo_dump functions, i.e., make the
functions use db_printf on ddb.
- it's always "bool sc_dying" now, with true/false
- heavy use of static functions
- remove all ucom parent ca_activate callbacks. they're never called.
- callbacks should generally do little to nothing if sc_dying is set
- open resources should be released in detach after setting sc_dying
- don't complain about usbd_abort_pipe() or usbd_close_pipe() failure
- when releasing resources, zero the softc member as well
- remove ucom_methods members no longer destined to be filled in
- generally, DPRINTF() before sc_dying short circuit
- use EIO when dying, not ENXIO or 0
- add some ucom_open() callbacks that simply return EIO if dying
and it is always nowait. fix uarea_poolpage_alloc() to not use
flags from the wrong collection for calling uvm_pagealloc()
and to wait itself if a page is not immediately available.
- Extend list command to display supported hardware formats.
- Add set command to set hardware format.
- Use correct /dev/audioctl instead of /dev/audio.
- Interrupt-oriented system rather than thread-oriented.
- Improve stability, quality and performance.
- Split playback and record cleanly. Improve halfduplex support.
- Many bugs are fixed including deadlocks, resource leaks, abuses, etc.
- Simplify audio filter mechanism. The encoding/channels/frequency
conversions are completely handled in the upper layer. So the hard-
ware driver only converts its hardware encoding (if necessary).
- audio_hw_if changes:
- Obsoletes query_encoding and add query_format instead.
- Obsoletes set_params and add set_format instead.
- Remove drain, setfd, mappage.
- The call sequences are changed.
- ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted.
- ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced.
- cleanup config attributes: au*conv and mulaw.
- All hardware drivers should follow it (I've done as much as possible).
Some file paths are changed:
- dev/audio.c -> dev/audio/audio.c (rewritten)
- dev/audiovar.h -> dev/audio/audiovar.h
- dev/audio_dai.h -> dev/audio/audio_dai.h
- dev/audio_if.h -> dev/audio/audio_if.h
- dev/audiobell.c -> dev/audio/audiobell.c
- dev/audiobellvar.h -> dev/audio/audiobellvar.h
- dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c
* All other bio(4) drivers either do or don't implement each command.
* This changes the returned error code, but it does not seem to matter,
as some bio(4) drivers always return ENOTTY in the default case, whilst
others always return EINVAL (e.g., both cac(4) and ciss(4) for setstate).
* XXXMRG: Stall task can run after slot is disabled when yanked.
* This hack notices that the xs has been memset() in
* xhci_disable_slot() and returns. Both xhci_reset_endpoint()
* and xhci_set_dequeue() rely upon a valid ring setup for correct
* operation, and the latter will fault, as would
* usb_transfer_complete() if it got that far.
this truly fixes yanking active ucom devices (uchcom, uplcom and
umcs all tested.) prior efforts largely worked by allowing the
stall task to run first, as a side effect to their actual work.
ok @skrll.
XXX: pullup.
* Makes it easier to do code/feature analysis by not having
extra noop code/symbols spattered around.
* Only an issue in cac(4) and ciss(4); other drivers don't do this.
* No binary changes.
