- Addresses the issue described in PR/38828.
- Some simplification in threading and sleepq subsystems.
- Eliminates pmap_collect() and, as a side note, allows pmap optimisations.
- Eliminates XS_CTL_DATA_ONSTACK in scsipi code.
- Avoids few scans on LWP list and thus potentially long holds of proc_lock.
- Cuts ~1.5k lines of code. Reduces amd64 kernel size by ~4k.
- Removes __SWAP_BROKEN cases.
Tested on x86, mips, acorn32 (thanks <mpumford>) and partly tested on
acorn26 (thanks to <bjh21>).
Discussed on <tech-kern>, reviewed by <ad>.
output will be echoed to the serial port and input will be accepted
from either keyboard or serial port. The bootblock serial console is
limited to 9600bps 8N1 as it uses the AmigaOS kernel debug routines.
To enable this you have to uncomment the SERCONSOLE define in
boot/Makefile.
Also note that the handling of a serial console in the kernel is
independent of this, you need to a build a kernel with 'options
SERCONSOLE'.
decide to use addressing modes that tas.b does not support. 'V' is
advertised to be "non-offsettable" subset of 'm' but there's a bug in
gcc that prevents "=V" from working.
When in doubt use brute force, so pass lock pointer as "r" input and
declare "memory" as clobbered.
Landisk kernel diff is 5 instructions (register choice for lock
address in __cpu_simple_lock_try).
sys/dev/raidframe/rf_copyback.c - where old __asm triggered incorrect code
- successfully compiles (as part of sys/rump/dev/lib/libraidframe).
that can't happen as early as the other init functions as called from
cpu_startup() -- for example, register kauth(9) listeners.
Put unprivileged policy in the x86 code; used by i386, amd64, and xen.
queue mutex doesn't work very well. I get various deadlocks and corrupted
queue entries. Change to IPL_SCHED [IPL_CLOCK] to block IPI interrupts
while the cpu is mucking with the shootdown queue.
Import acpiwmi(4) from Jukka Ruohonen. From the PR:
Attached is a driver that implements ACPI WMI API:
http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx
The WMI is used to provide a generic interface for OEMs to use certain
platform/laptop-specific additions to the standard ACPI in a somewhat
portable way. These can be hotkeys for additional buttons, different event
handlers (wireless kill switch, lid switch, etc.), and so on. At least HP
and Acer use it by default nowadays.
The benefit of this interface would be portability. For an example, instead
of hpqlb(4) that works only with certain HP models, we could have a generic
HP WMI-driver that should work in theory across all HP laptops. On many new
laptops WMI may also be the only way to access laptop/manufacturer-specific
features.
Probably needed for all C7 and Nano processors, but to be safe only use
this alternate method on Esther for now.
Now est on my C7-M 1.6GHz properly reports frequencies from 1600 to 400,
instead of 2133 to 533.
Tested on Intel SS4200-E (ICH7), and Acorp 6A815EPD (ICH2) motherboards,
on amd64 and i386 ports respectively.
It should be noted that the majority of boards with ICH chips do not
expose the GPIO pins for off-board use. For instance, aside from the
three exposed-on-a-header pins on the 6A815EPD, another pin is also
used to control write protect on the FWH. The SS4200 exposes the GPIO
on a header that connects to the 10 LEDs on the front panel, as well
as a tact switch on the back panel.
SPARCclassic has onboard CG3 but it's internally connected via SBus,
and there is no info about sun4m machines which actually require
cgthree at obio attachment. Info from jdc@.
* The default output section LMA has changed for allocatable sections from
being equal to VMA, to keeping the difference between LMA and VMA the same as
the previous output section in the same region. This is a more useful
default when using overlays and other cases where you specify an LMA
differing from the VMA for some sections.
defines 2-bit tags for each FPU data register, in MMX mode it
defines 1-bit tags for each data register. The single bit
tags are stored in the lower 8 bits and thus in the first byte
of the save frame.
See amd64/include/fpu.h and the IA-32 Software Developer's manual Vol 2A.
xbd: if feature-flush-cache is present, use it for DIOCCACHESYNC.
If not present, make DIOCCACHESYNC return EOPNOTSUPP and warn on
first call.
Should improve WAPBL reliability of Xen guests on a NetBSD dom0.
Unfortunably not all linux guests seems to support this feature, and using
feature-write-barrier would require a B_BARRIER flag in the buffer.
than genfb have a chance of working.
Tested with radeonfb which works fine with an RV280
TODO: figure out how to deal with more than one PCI_CLASS_DISPLAY device in
a halfway sane manner
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.
Suggested by mrg@ and martin@, and tested on SS1+ and SS20.
no return; need to stick in text mode as long as possible since libsa does
not include a rasops library. While here, add the 'vesa' command to pxeboot
to mirror biosboot behaviour.
backwards time was incorrect, and actually disabled the use of mfpr for
timecounters. The intent was to emulate a 32 bit counter using the
hardclock_ticks from the clock interrupt and the contents of the
Interval Counter register. The problem with that was when the ICR
wrapped, but the clock interrupt was blocked resulted in an incorrect
count. Work around this by keeping track of the previous ICR value
and hardclock_ticks to ensure the 32 bit counter doesn't go backwards.
Also, the ICR runs from -10000 to -1, so adjust the value when reading it.
Now mfpr works quit nicely on my 4000/90.
for number keys. snj@ often overshoots the spacebar in a panic and
accidentally hits 'b' instead, which makes the loader boot item '2'.
Can't fix snj@, so fix the boot loader instead.
information from the BIOS in addition to the currently selected default
partition. Handy when you don't know where to boot from. Here's a demo:
type "?" or "help" for help.
> dev
disk hd0 size 3815 MB
hd0a(4.2BSD) hd0b(swap)
disk cd0
cd0a(unknown)
default hd0a
>
- unless otherwise specified, modules are now loaded from the same device
as the kernel ('load miniroot' now implies 'load tftp:miniroot' if the
boot command is 'boot tftp:netbsd')
- the module name -> path expansion now works when a device prefix: is
specified ('load tftp:miniroot' now works)
- if the module name has been expanded to a path, print that path when
loading the module rather than the symbolic name
- only print an error in module_open if both the expanded path and the
raw path fail to open
send pmap tlb shootdowns to them cause the shootdown job queue to fill up,
but since the cpus aren't running yet, no IPIs get sent. When the job
queue is full, the bit mask of cpus to send the IPI to is not set and no
shootdown IPI ever gets sent after the cpu is marked running. Always
set the cpumask even when the queue is full. Now I get shootdown ipis
on all the secondary cpus.
cpus are told to begin running. Since the seconedary cpus weren't being
added to the cpu_info list until then, that initialization wasn't being
done and resulted in crashes on the secondary cpus. Add the secondary
cpus to the cpu_info_list after they've been started (but waiting to be
told to start running). This fixes the problem specifically stated in
PR port-alpha/41106. MP alphas will now at least boot and begin running,
but will eventually crash in various ways later.
It will replace azalia(4) after testing.
To use, comment out azalia in your kernel configuration and uncomment the
hdaudio and hdafg lines so it reads:
# Intel High Definition Audio
hdaudio* at pci? dev ? function ?
hdafg* at hdaudiobus?
You should also:
cd /dev
sh MAKEDEV audio
address in the ISA hole (because addr+size calculations wrap to 0). Fixes
ohci on VirtualPC 7 for Mac, which places OHCI at base address 0xfffff000
size 0x1000.
The head of the list is now a pv_header, which contains the first pv_entry
as well as a 16-bit attributes field (replaces the pmap_attributes array
plus the pv_entry::pv_flags field) as a 16-bit count of caller-specified
cache-inhibited mappings.
Tested on hp300 (shared pmap_motorola.c), changes to atari and amiga copies
are purely mechanical.
PR# port-i386/41162: A20 gate legacy hook cause long pxeboot delay on Soekris net5501
Remove calls to delay() before polling KBD registers in gateA20().
using implementation of old src/usr.sbin/mdsetimage sources
which supports misc executable formats without LGPL'ed libbfd.
No particular comments on port-atari@.
XXX1: amiga also has the similar utility in amiga/stand/binpatch
but it has slightly different options.
XXX2: Is it worth to put this utility into MI src/usr.sbin to patch
rtc_offset etc. in GENERIC kernel binaries in distribution?
snj