include machine/options.h
Rework PDMA read/write functions based on Matthias Pfaller's pc532 ncr
driver.  Major highlights:

 - Protect with splbio(), now that interrupts from the chip might be
   enabled by default;
 - Wait for current transfer to complete before returning, rather than
   wait for previous transfer to complete before starting another;
 - Instead of logging a "timeout" message when a target disconnects,
   just return, letting the sbc_ready() and sbc_wait_not_req() print
   timeout messages if such really did occur.

With interrupt changes to sbc_obio.c, disconnect/reselect now works if
configured into the kernel.
add machine/conf.h, right now a minimal placeholder
Always enable SCSI IRQ interrupt; the SBC_INTR flag now controls only
the SCSI DRQ interrupt, for "blind" transfers.
use machine/conf.h instead of sys/conf.h and/or machine/cpuconf.h
include machine/options.h
include machine/options.h
more column alignment fixes
remove ndc before rebuilding it
use rm -f ... , incase it doesn't exist
refer to $@ not ndc
use rm -f ... to remove the script before creating
refer to $@ not the explicit name
Add Linux nice() syscall.
Regen.
Fix a CRNL/NLCR botch I made after looking this up in the X/Open spec.
Fixes PR 3453; from John Kohl and Enami Tsugutomo.
Fix a debugging printf() format.
Some corrections (mostly typos) by Thorsten Frueauf (PR 3315).
sun4c and sun4m `aux' register bits differ slightly.
Removed spurrious ``#ifdef ISO''.
Fix SunOS user trace trap handling, from Gordon.
Update for new files since last commit