GCC produces almost exactly the same instructions as the hand-assembled
versions, albeit in a different order. It even found one place where it
could shave one off. Its insistence on creating a stack frame might slow
things down marginally, but not, I think, enough to matter.
to char-cell based vga(4) driver, and fully compatible with existing
apps like XFree86. Currently it supports 80x25, 80x30, 80x40 and 80x50
text modes using emulation. You can enable it by specifying `options
VGA_RASTERCONSOLE' in your kernel config file.
Note that displaying multilingual text doesn't work yet. Necessary
code is already there, but userland stuff and some functionality isn't
ready for prime time yet. I'm working on them.
mode 666 tty.
In order to use sshd logins with a read-only /dev, the administrator has to
make the tty mode 600 root/wheel before the partition gets read-only.
children to attach; it is not sufficient to have an interface
atttribute which only happens to have the same name.
Fix the same mistake with the sabtty declaration.
It seems that the firmware accept 104bit key only if
all the keys have 104bit length. We get the length of
the transmit key and use it for all other keys.
Perhaps we should use software WEP for such situation.
Change the name for the size of driver private structure:
ic_bss_privlen -> ic_node_privlen
Add a hook to free node for the driver private structure, though there are
no consumer of the structure in the tree for now.
add rd, pc, #foo - . - 8 -> adr rd, foo
ldr rd, [pc, #foo - . - 8] -> ldr rd, foo
Also, when saving the return address for a function pointer call, use
"mov lr, pc" just before the call unless the return address is somewhere
other than just after the call site.
Finally, a few obvious little micro-optimisations like using LDR directly
rather than ADR followed by LDR, and loading directly into PC rather than
bouncing via R0.
private to the process within the share group.
There is one bit missing in this implementation: when replicating a change
in a process VM to the other process of the share group, we avoid copying
mappings for private regions in the target process, but we don't prevent
copying private regions from the source process.
../../common/Makefile.mdset supports building multiple copies of the
same kernel (as long as they're to separate filenames).
Now there's no need to set FLOPPYKERNDIR, as it now defaults to instkernel.
- Allocate interrupt handles dynamically from a pool(9) to reduce the
number of TLB misses during interrupt dispatch.
- Fully support evcnt(9) in all interrupt dispatchers.
- Add "outputs.surround", "outputs.center", and "outputs.lfe"
- If the codec is not capable of a feature, mixer variables
about the feature is not created. For example, no
"outputs.tone" for a codec without tone control.
- Set the following mixer values in ac97_attach():
outputs.master=127,127
outputs.master.mute=off
outputs.headphones.mute=off
outputs.surround=127,127
outputs.surround.mute=off
outputs.center=127
outputs.center.mute=off
outputs.lfe=127
outputs.lfe.mute=off
inputs.dac.mute=off
inputs.cd.mute=off
inputs.line.mute=off
inputs.aux.mute=off
inputs.video.mute=off
record.volume.mute=off
because the default setting of AC'97 codec (all mutes are on,
and maximum volume) is troublesome.
- Make "char*" parameters of ac97_get_portnum_by_name() "const char*"
Codec ID changes:
- If a codec ID is unknown but its vendor ID is known,
ac97_attach() prints the vendor name like "dev0: <vendor name>
unknown (0xXXXXXXXX) codec;"
- Add IDs of Asahi Kasei AK4542, AK4544, AK4544A, AK4545,
Realtek ALC100
- Correct a vendor name: "Advance Logic" -> "Avance Logic"
- Add capability of codec-specific initialization
ac97_attach():
- CDAC, SDAC, and LDAC are eanabled.
- DELAY() before mixer settings. ThinkPad X24 needs it.
ALC650 codec specific change:
- Add "outputs.surround.lineinjack" to switch the line-in jack
to the surround output
- Add "outputs.center.micjack" and "outputs.lfe.micjack" (alias
of "outputs.center.micjack") to switch the mic jack to the
center/lfe output.
bjh21