Connectivity Products:
ABP510/5150 - Bus-Master ISA (240 CDB) (Footnote 1)
ABP5140 - Bus-Master ISA (16 CDB) (Footnote 1) (Footnote 2)
ABP5142 - Bus-Master ISA with floppy (16 CDB) (Footnote 3)
Single Channel Products:
ABP542 - Bus-Master ISA with floppy (240 CDB)
Footnotes:
1. This board has been shipped by HP with the 4020i CD-R drive.
The board has no BIOS so it cannot control a boot device, but
it can control any secondary SCSI device.
2. This board has been sold by SIIG as the i540 SpeedMaster.
3. This board has been sold by SIIG as the i542 SpeedMaster.
the arguments are changed so the address is first and the ASI second so we
can have the address in %o0:%o1 and not worry about unused registers.
Also a bit of copyright cleanup.
non-cached. XXX clean this up by looking at the "non-cacheable" bit of
the full physical address.
avoid having 'nbuf' change between calls to `mdallocsys()' by setting it
in mdallocsys() like the MI allocsys() does. XXX fix this too!
fix some printf lossage.
update for probeget() changes -- though bus_space_probe() appears to be
unused on the sparc64.
looking up a kernel address, check to see if the address is on this
"interrupt-safe" list. If so, return failure immediately. This prevents
a locking screw if a page fault is taken on an interrupt-safe map in or
out of interrupt context.
device declaration, we don't want it). pull in psycho, pci,
ata and pciide code. clock, eeprom and power attach at sbus
*and* ebus now (clock as `eeprom' works). add `lpt at ebus',
wd major number, and other misc. commented devices.
looking up a kernel address, check to see if the address is on this
"interrupt-safe" list. If so, return failure immediately. This prevents
a locking screw if a page fault is taken on an interrupt-safe map in or
out of interrupt context.
before the elimination of typematic events.
This fixes the case where the "extended" prefix was not ignored and
affected the next keystroke. (seen with the AltGr key)
(`SUNW,sabre') for now, and it doesn't really quite work there yet anyway.
the bus space/dma code is cloned from the sbus driver. the IOMMU code also
is cloned from the sbus code, but separated out into iommu.c so that we can
share it with the sbus driver. hopefully, much of the bus space/dma code
can also be re-shared with the sbus driver and the ebus driver but for now
these copies will do.
support for the real UltraSPARC PCI (`SUNW,psycho') is unwritten, though
most of this code is shared with it.
we can probe PCI config space and try to configue devices, but interrupts
don't work yet...
the bus space/dma code is cloned from the PCI code to do the same thing
which itself was cloned from the sbus bus space/dma code. the bus dma
code is non-functional at this point.
component failures! Also: remember to configure the disk queues for
the spares -- failure to do that is Bad(tm).
Huge Thanks to Martin Laubach for helping track this down.
setting recursive has no effect! The kernel lock manager doesn't allow
an exclusive recursion into a shared lock. This situation must simply
be avoided. The only place where this might be a problem is the (ab)use
of uvm_map_pageable() in the Utah-derived pmaps for m68k (they should
either toss the iffy scheme they use completely, or use something like
uvm_fault_wire()).
In addition, once we have looped over uvm_fault_wire(), only upgrade to
an exclusive (write) lock if we need to modify the map again (i.e.
wiring a page failed).
don't unlock a kernel map (!!!) and then relock it later; a recursive lock,
as it used in the user map case, is fine. Also, don't change map entries
while only holding a read lock on the map. Instead, if we fail to wire
a page, clear recursive locking, and upgrade back to a write lock before
dropping the wiring count on the remaining map entries.
bytes/sector correctly.
Submitted by Detlev Würkner in PR 7653.
Non-trivial merge with the 1.30 change (handle old AmigaDOS fs partitions
with simulated sectorsperblock > 1) by myself, so don't blame Detlev if it
doesn't work (but I checked!).
XXX We still need changes to the file systems to handle this fully.
at levels 5 (sound) and 6 (via1) on the Q700.
Raise splhigh when reading and writing registers. It's ugly, but it's
possible that we could get an interrupt from a higher-level source,
causing a re-read of a memory location.
This is not good when, e.g., we are reading the interrupt register.
Ideally, we would just raise splhigh() in ncr53c9x_readregs(), but
that's m.i. code, and it may be expensive on other architectures.
will DTRT with vnodes marked VDIROP. In particular, the message
"flushing VDIROP" will no longer appear, and the filesystem will remain
stable in the event of a crash.
This was particularly a problem with NFS-exported LFSes, since fsync
was called on every file close.
