- don't use managed mappings/backing objects for wired memory allocations.
save some resources like pv_entry. also fix (most of) PR/27030.
- simplify kernel memory management API.
- simplify pmap bootstrap of some ports.
- some related cleanups.
- Ffs internal snapshots get compiled in unconditionally.
- File system snapshot device fss(4) added to all kernel configs that
have a disk. Device is commented out on all non-GENERIC kernels.
Reviewed by: Jason Thorpe <thorpej@netbsd.org>
All those kernels have a line for both tun and bridge, and if either is
commented out, tap is commented out also. With the exception of i386's
GENERIC_TINY.
XXX: we _need_ some way of making this more simple.
wdc_regs structure, and array of which (indexed per channel) is pointed
to by struct wdc_softc.
- Move the resulting wdc_channel structure to atavar.h and rename it to
ata_channel. Rename the corresponding flags.
- Add a "ch_ndrive" member to struct ata_channel, which indicates the
maximum number of drives that can be present on the channel. For now,
this is always 2. Add an ATA_MAXDRIVES constant that places an upper
limit on this value, also currently 2.
to all GENERIC-like kernel config files where SYSV* options were already
present (commented out if the SYSV* options are commented out).
Fix lib/25897 and lib/25898.
(minimum desired free memory), default them to 5M and 10M respectively.
On a machine with more than (BOOT_LEAVE_MEMORY + BOOT_MIN_AVAIL_MEMORY) free
BOOT_LEAVE_MEMORY will be left unused.
Allows a kernel to be booted from SparkFS on a machine with more than 15M
of free memory (SparkFS needs to be able to allocate memory for the
uncompressed kernel)
registers are registers that overlap with others on many controllers, but
which may actually be distinct on some controllers. Right now, the two
shadows are:
- wd_status (usually overlaps wd_command)
- wd_features (usually overlaps wd_error)
Add a new helper function, wdc_init_shadow_regs(), used to initialize
the shadow register handles on controllers where they do actually overlap.
Partially from Jordan Rhody @ Wasabi Systems, Inc.
bubblesort in acorn32 bootloader. Reduces time to sort memory on A710 equipped
RiscPC from over twenty seconds to effectively instantaneous.
Update boot version to 3.30
the need to explicitly set the WIMP slot size before running the bootloader.
Conditional on BOOT_MAXIMISE_MEMORY, so as not to interfere with potential
future uses of libriscos.
Also remove references to increasing WIMP slot size, as this is now
meaningless.
* lpt device is defined in MI place (dev/ppbus/files.ppbus), dev/ic/lpt.c
is included there too; dev/ic/lpt.c is not included if ppbus is
configured or if there is alternative platform lpt (like for pc532)
* g/c MD lpt definitions and custom puc/upc attachments,
glue moved to conf/files and dev/pci/files.pci respectively; remove
device lpt definition from dev/isa/files.isa
* add ppbus parport attribute, atppc device attachments, adjust plip and lpt
glue
Remove the vestigal sysbeep device and replace it with the same kind of
mechanism that pckbd(4) uses to find the bell, which is just as ugly, but
more standard. Adapt beep(4) to the new world (though I'm not sure it
deserves to live).
Get rid of the static bus tag, instead move it into the softc.
Update to ThorpeJ's recent variable renaming for ATA things.
De-__P and KNF prototypes, also make attach and probe static.
Add RCSID.
Add a copyright for myself.
acccesses with addresses shifted by the amount specified in the cookie.
Also make the inclusion of the wscons file the resposibility of whoever
includes files.iomd. (found while attempting to checking riscstation
support into evbarm)
http://www.simtec.co.uk/products/EB7500ATX/
also available with RISC-OS as a RiscStation:
http://www.riscstation.co.uk/html/products.html
This is basic bootstrap with support for ide and networking, currently only
tested with booting from ABLE, and not RISC-OS.
I would have placed it into evbarm, but iomd doesn't appear to use the same
interrupt files as evbarm. I'll check it into here for now, until iomd
uses the common interrupt code.
- wdc_xfer to ata_xfer
- channel_queue to ata_queue
and move them to <dev/ata/atavar.h> so they can be used by non-wdc ATA
controllers. Clean up the member names of these structures while at it.
than in dependencies of it, since .BEGIN is apparently only special for
its commands, not its dependencies. This should get boot26, and probably
boot32, compiling again.
registers into arguments passed.
Avoids corruption of anything pointed to by r3 and r4 on entry to
os_get_env, and allows pass-by-reference values to be returned.
alignment fault checking if necessary.
This option gets the acorn32 port working again.
XXX: Richard Earnshaw suggested enabling alignment faults for
XXX: userland only on acorn32. Need to investigate this.
which is automatically included during kernel config, and add comments
to individual machine-dependant majors.* files to assign new MI majors
in MI file.
Range 0-191 is reserved for machine-specific assignments, range
192+ are MI assignments.
Follows recent discussion on tech-kern@
interface controllers (of varying intelligence levels).
Contributed by Wasabi Systems, Inc. Primarily written by Steve Woodford,
with some modification by me.
most polling.
2) Clean up some goofiness in pciide -- get rid of the whole "candisable" path
(it's gratuitous) and simplify the code by calling pciide_map_compat_intr(),
*_set_modes() and wdc_print_modes() from central locations.
3) Add a register writability and register ghost test to eliminate phantom
drives more quickly.
Also in the ARM32_PMAP_NEW case, reclaim the USPACE-bytes of wasted space
at the top of the user address that hasn't been needed for a very very
long time.
table is handled the podulebus mappings are now done at initarm, rather
than in the podulebus code. While I'm not happy with this it does work,
perhaps there's a better way to do it?
Not enableing by default I've not got enough cards to check the podulebus
change hasn't broken something (works with my rapide and with my network
podule)
major code cleanup esp. types used. Also cleanup up a major BUG that for
some odd reason worked :-/ makes me puzzled. It signifies that there might
be copies around in physical space of the DRAM ??? and thus its function
was motherboard dependent? It must have been old cruft from before the
cleanup of the relocation engine.
/*
* The size of the code/data to be moved is not `end - rmbase' but
* `__bss_start__ - rmbase' for the module is loaded into RISC OS
* based on the filesize where as NetBSD doesn't have to include all
* the bss space into the file itself. In some odd cases the
* relocatable module area can be smaller than the module + bss and
* thus bomb out.
*/
cd ${KERNSRCDIR}/${KERNARCHDIR}/compile && ${PRINTOBJDIR}
This is far simpler than the previous system, and more robust with
objdirs built via BSDOBJDIR.
The previous method of finding KERNOBJDIR when using BSDOBJDIR by
referencing _SRC_TOP_OBJ_ from another directory was extremely
fragile due to the depth first tree walk by <bsd.subdir.mk>, and
the caching of _SRC_TOP_OBJ_ (with MAKEOVERRIDES) which would be
empty on the *first* pass to create fresh objdirs.
This change requires adding sys/arch/*/compile/Makefile to create
the objdir in that directory, and descending into arch/*/compile
from arch/*/Makefile. Remove the now-unnecessary .keep_me files
whilst here.
Per lengthy discussion with Andrew Brown.
got wrong when no VRAM was there.
Placing the video DRAM in front of the kernel is OK when its 1Mb since the
kernel wants to be on a Mb boundary. Placing the video DRAM in the last
SIMM bank at the front is also OK unless there is just one SIMM and just one
bank; then it got in the way again!
Solution is to put the DRAM at the end of the SIMM instead of the beginning!
This however can result in the non 16 kb alignment of the top of physical
RAM where the temporary L1 page tables are situated. If its not 16 kb aligned
then move the L1 page table address down and down until it is 16 kb aligned.
This memory will be reused later on anyway.
What to do when we really support changing screensizes... see it as a max?
or use a different sceme alltogether? It might not even be a bootloader
problem then allthough its memory is not showing up in the DRAM/VRAM
block counts wich needs to be fixed one day.
platform. It features far better support for newer architectures and is
fully rewritten in C and compile-able under NetBSD.
Since it shares code with `boot26' for Acorn26 merging the common parts is
likely to be next on the list.
- disk_unbusy() gets a new parameter to tell the IO direction.
- struct disk_sysctl gets 4 new members for read/write bytes/transfers.
when processing hw.diskstats, add the read&write bytes/transfers for
the old combined stats to attempt to keep backwards compatibility.
unfortunately, due to multiple bugs, this will cause new kernels and old
vmstat/iostat/systat programs to fail. however, the next time this is
change it will not fail again.
this is just the kernel portion.
kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals
kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)
based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
in question, whereas the ARM code was using it to hold the model
identification. To fix this, rename:
ci_cpuid -> ci_arm_cpuid
ci_cputype -> ci_arm_cputype (for consistency)
ci_cpurev -> ci_arm_cpurev (ditto)
ci_cpunum -> ci_cpuid
This makes top(1) give correct CPU numbers in its "STATE" column (all 0 for
now).
invalidation after every lock to ensure that changes made by other CPUs are
visible. This has nasty performance implications, but it does allow my
Hydrated Risc PC to run printf() on all its CPUs at once without corrupting
the message buffer.
and boot multi-user on a single-processor machine. Many of these changes
are wildly inappropriate for actual multi-processor operation, and correcting
this will be my next task.
based systems. Untested on shark, but is the right thing to do. I suspect
the original arm32 intr.h had the bug, and when the ports split we just took
the bug.
