a flag that determines whether or not wired mapping should be removed.
pmap_collect() calls pmap_do_remove() without this flag, and pmap_remove()
calls with it.
Pointed out on port-mac68k with suggested fix from chs.
Also, if the so-called DMA operation is a write and ends without target-
complete set, count the data in the FIFO as residual and add that to the
amount in the counters. Hauke Fath reports that this passes early testing
on his Quantum Viking.
if it is 64k. TCL and TCM will be set properly if we just leave it alone.
Not only that, the ncr53c9x driver issues TRPAD or TRANS based on this
value. We do not want TRPAD in this case!
an ugly bit where we record the value of a2 while handling a "nofault" bus
error in locore.s in order to know how far the transaction got before a
disconnect (see esp.c comments for more details on this).
Also get rid of a loop (and delay()!) in the interrupt routine--hinted at
and researched by Chas Williams <chas@cmf.nrl.navy.mil>.
only signal handler array sharable between threads
move other random signal stuff from struct proc to struct sigctx
This addresses kern/10981 by Matthew Orgass.
implement pseudo-DMA transfers with the SCSI controller. This caused our
match to fail when we couldn't map the entire DAFB register/control space
for our own use. Instead, we map only (about) what we will need in two
separate regions.
As a consequence we no longer do Turbo SCSI configuration here; indeed, it
may have caused us trouble later on if we actually changed the values
stored in those registers in the esp driver.
* move all exec-type specific information from struct emul to execsw[] and
provide single struct emul per emulation
* elf:
- kern/exec_elf32.c:probe_funcs[] is gone, execsw[] how has one entry
per emulation and contains pointer to respective probe function
- interp is allocated via MALLOC() rather than on stack
- elf_args structure is allocated via MALLOC() rather than malloc()
* ecoff: the per-emulation hooks moved from alpha and mips specific code
to OSF1 and Ultrix compat code as appropriate, execsw[] has one entry per
emulation supporting ecoff with appropriate probe function
* the makecmds/probe functions don't set emulation, pointer to emulation is
part of appropriate execsw[] entry
* constify couple of structures
rather than assigning to the whole field, set or clear individual flags,
which implies that the B_BUSY and B_INVAL flags will remain set.
this allows us to make the assertion in brelse() that B_BUSY is set,
which is the purpose of all this.
in fact on this planet -- generate a SIGILL for user-mode A-line traps.
The core of this change is taken verbatim from PR 10511, submitted by
Christian Bauer.
thorpej