- make a few functions static
- introduce gem_bitwait() to factor out some of the register wait code.
- add gem_stop() in attach
- some DEBUG should be GEM_DEBUG
- handle underrun, packet too long, and overflow errors by resetting the chip
- add handler in ioctl for add/del multi
- fix typo
Also:
- add a shadow sc_if_flags member so that we don't reset the chip if we
don't need to.
we can't do an SA context switch after all, we need to clear the sau from
the LWP's arg. sa_switch() frees the sau in this case, but if we don't
reset the LWP's state and the process exits, then the exiting LWP will
try to free the sau again.
also, change the sadebug printf stuff to use printf_nolog(), since
otherwise we deadlock because we're already holding sched_lock and
the normal printf() will try to wakeup the log reader.
we even have that documented in cache.h). Initialize c_nlines for
split caches.
This should fix srmmu cache flush routines for split I/D caches that
has been broken since cache.c revision 1.79 started using c_nlines.
which is needed for things like S/KEY. We abuse the SRA_CONTINUE message
passing the password prompt there. That is usually NULL, so SRA
implementations usually ignore it. While I am here, if telnet_gets() fails
[user hit <eof> for example], then we exit.
Functional: Do not add a missing period or a version number to
directories, since that doesn't fit the standard (thanks
Daniel Watt).
Add RRIP PX records (POSIX meta-information) to '.'
and '..' entries. Quiets kernel complaint, when we
mount a cd9660 filesystem, that there is a missing PX
entry.
Cosmetic: Reduce height of staircases. Remove an unused member
from struct _cd9660node. Extract a subroutine. KNF.
Use a TAILQ macros for lists of both SUSP/RRIP attributes
and directory entries.
XXX
XXX The new RRIP PX entries are not quite right.
XXX
not running on the same CPU as the swapper. l_stat is protected by
sched_lock, which isn't held here, so we can race with that lwp
starting to run and see its l_cpu not updated yet, as in PR 31870.
we check l_stat again in uvm_swapout() while holding sched_lock,
so the race itself is harmless.
