Commit Graph

3288 Commits

Author SHA1 Message Date
Jordan K. Hubbard
b4a346809a Accept 'Q' or 'ESC' in intro screen as a "Jane, stop this crazy thing!"
request.
1996-10-09 18:31:20 +00:00
Bruce Evans
cf232f113f Enable the i586-optimized bcopy if the cpu is a "586" and option
I586_OPTIMIZED_BCOPY is configured.

Similarly for bzero/I586_OPTIMIZED_BZERO.

Fake 586's had better have a hardware FPU with non-broken exception
handling (we mask exceptions, but broken exception handling may trap
on the instructions that do the masking).  I guess this means that
the routines won't work on most 386's or FPUless 486's even when they
have a h/w FPU.
1996-10-09 18:30:08 +00:00
Bruce Evans
18860b410d Added i586-optimized bcopy() and bzero().
These are based on using the FPU to do 64-bit stores.  They also
use i586-optimized instruction ordering, i586-optimized cache
management and a couple of other tricks.  They should work on any
i*86 with a h/w FPU, but are slower on at least i386's and i486's.
They come close to saturating the memory bus on i586's.  bzero()
can maintain a 3-3-3-3 burst cycle to 66 MHz non-EDO main memory
on a P133 (but is too slow to keep up with a 2-2-2-2 burst cycle
for EDO - someone with EDO should fix this).  bcopy() is several
cycles short of keeping up with a 3-3-3-3 cycle for writing.  For
a P133 writing to 66 MHz main memory, it just manages an N-3-3-3,
3-3-3-3 pair of burst cycles, where N is typically 6.

The new routines are not used by default.  They are always configured
and can be enabled at runtime using a debugger or an lkm to change
their function pointer, or at compile time using new options (see
another log message).

Removed old, dead i586_bzero() and i686_bzero().  Read-before-write is
usually bad for i586's.  It doubles the memory traffic unless the data
is already cached, and data is (or should be) very rarely cached for
large bzero()s (the system should prefer uncached pages for cleaning),
and the amount of data handled by small bzero()s is relatively small
in the kernel.

Improved comments about overlapping copies.

Removed unused #include.
1996-10-09 18:16:17 +00:00
Bruce Evans
14f3567a32 Don't claim the console when the driver is disabled. The getc/putc
part of the console driver usually works when the driver is disabled,
but the normal read/write part doesn't (it caused a panic).
1996-10-09 15:24:21 +00:00
Bruce Evans
50ec4d5916 Added option PROBE_KEYBOARD_LOCK which gives a serial console if the
keyboard is locked.
1996-10-08 22:41:34 +00:00
Bruce Evans
4fd6d53a24 Saved about 160 bytes by using the gcc-2.7 alignment options. 1996-10-08 22:35:48 +00:00
Bruce Evans
5bac261e76 Print the dos device number for read failures. 1996-10-08 22:31:31 +00:00
Bruce Evans
86f17a898e Removed unused arg to badsect(). It wasted 16 bytes.
Staticized badsect().

Avoid warning for benign signed vs unsigned comparison.
1996-10-08 22:25:22 +00:00
Bruce Evans
3eeeca733b Use the same warning flags as for the kernel. This causes surprisingly
few warnings.
1996-10-08 22:18:34 +00:00
Bruce Evans
9e72552ff0 Centralized the definition of CWARNFLAGS into bsd.kern.mk. 1996-10-08 22:09:03 +00:00
Bruce Evans
e8e87818d1 Fixed pessimized (short) i/o port types. 1996-10-08 21:08:18 +00:00
Garrett Wollman
545c48b83a Fix padding of short packets (PR#1701).
Submitted by: seki@sysrap.cs.fujitsu.co.jp
1996-10-07 17:50:00 +00:00
Justin T. Gibbs
0a42ab8379 Advanced Systems Inc. SCSI Controller driver and ISA/VL front end.
I have only tested the ABP5140 card and only with a single CDROM drive
but it seems to work fine.  This driver relies on features found only in
the SCSI branch so will not work in -current until those changes
are brought in.  It also doesn't have any error handling code *yet*.
The goal is to use this driver as the development platform for the new
generic SCSI layer error recovery/handling code.

PCI and EISA front ends will show up as soon as I get my hands on
the cards.  There are also a few issues in the driver that I need
to clear up with AdvanSys before I can suggest sticking one of
these cards in your server. 8-)

Thanks to AdvanSys for releasing this code under a suitable copyright.

Obtained from:  Ported from the Linux driver writen by
		bobf@advansys.com (Bob Frey).
1996-10-07 02:07:07 +00:00
Justin T. Gibbs
b109ceda2f Bring in bug fix from 'SCSI' branch. 1996-10-06 22:50:56 +00:00
Justin T. Gibbs
020f6d4ee5 If, during an SDTR negotiation, the target comes back with a response
that is too low for the aic7xxx chip to handle with sync transfers,
negotiate async transfers.
1996-10-06 19:43:36 +00:00
Bruce Evans
bb2038d538 Improved the btodb() and dbtob() macros. I made them give unsigned
[long long] results when I last worked on them, but they are normally
used together with to daddr_t's and off_t's which are signed, so the
unsigned results did little except cause warnings.
1996-10-06 19:24:02 +00:00
Bruce Evans
e2bbfa26bd Cleaned up vm types. Cosmetic.
The main change is from unsigned long unsigned int.  It just needs to
be a 32-bit type and unsigned int is most natural.  Using a non-long
type has the "advantage" of hiding bugs in the "machine-independent"
code where it prints foo_t's using %d or %x.  These bugs are currently
hidden bug not compiling with -Wformat.

I tried changing vm_ooffset_t from long long to unsigned long long, but
that was wrong because vm_ooffset_t needs to be long to match off_t,
although file offsets are never negative.

Reviewed by:	dyson
1996-10-06 19:13:37 +00:00
Justin T. Gibbs
2ea8799246 Bring aic7xxx driver bug fixes from 'SCSI' into current. 1996-10-06 16:38:45 +00:00
Bruce Evans
d1f6ee03f1 Fixed build of LINT yet again. getchar() clashed with getchar() in pcvt.
Staticized it in userconfig.  The one in pcvt is unused.

Removed bogus unused arg to getchar().  This should not have compiled
in the USERCONFIG_BOOT case, but the getchar() was also non-prototyped
and defined in K&R style.

Staticized the badly named global variable `next'.  Even static variables
should have a unique module-specific prefix so that they can be referenced
easily in debuggers, etc.
1996-10-06 16:30:15 +00:00
David Greenman
8d0f240d36 Moved a #if for VISUAL_USERCONFIG case...the last commit didn't completely
fix the problem.
1996-10-06 15:27:36 +00:00
Jordan K. Hubbard
3a501ea715 Conditionalize introfunc on USERCONFIG_BOOT && VISUAL_USERCONFIG 1996-10-06 10:15:27 +00:00
Jordan K. Hubbard
8996308b98 Document USERCONFIG_BOOT, even though it doesn't belong where it is. ;-) 1996-10-05 11:01:24 +00:00
Jordan K. Hubbard
d50a30076c Multiple changes stacked as one commit since they all depend on one another.
First, change sysinstall and the Makefile rules to not build the kernel
nlist directly into sysinstall now.  Instead, spit it out as an ascii
file in /stand and parse it from sysinstall later.  This solves the chicken-n-
egg problem of building sysinstall into the fsimage before BOOTMFS is built
and can have its symbols extracted.  Now we generate the symbol file in
release.8.

Second, add Poul-Henning's USERCONFIG_BOOT changes.  These have two
effects:

	1. Userconfig is always entered, rather than only after a -c
	   (don't scream yet, it's not as bad as it sounds).

	2. Userconfig reads a message string which can optionally be
	   written just past the boot blocks.  This string "preloads"
	   the userconfig input buffer and is parsed as user input.
	   If the first command is not "USERCONFIG", userconfig will
	   treat this as an implied "quit" (which is why you don't need
	   to scream - you never even know you went through userconfig
	   and back out again if you don't specifically ask for it),
	   otherwise it will read and execute the following commands
	   until a "quit" is seen or the end is reached, in which case
	   the normal userconfig command prompt will then be presented.

  How to create your own startup sequences, using any boot.flp image
from the next snap forward (not yet, but soon):

	% dd of=/dev/rfd0 seek=1 bs=512 count=1 conv=sync <<WAKKA_WAKKA_DOO
USERCONFIG
irq ed0 10
iomem ed0 0xcc000
disable ed1
quit
WAKKA_WAKKA_DOO


Third, add an intro screen to UserConfig so that users aren't just thrown
into this strange screen if userconfig is auto-launched.  The default
boot.flp startup sequence is now, in fact, this:

	USERCONFIG
	intro
	visual

(Since visual never returns, we don't need a following "quit").

Submitted-By: phk & jkh
1996-10-05 10:44:07 +00:00
David Greenman
d41fe60984 Oops, missed a chunk in that last commit. 1996-10-04 14:17:32 +00:00
David Greenman
1c41fd74b9 Implemented a more sophisticated mechanism for finding the chip iobase
so that 32Y boards will work.
Fixed bogus indenting and added a pair of parens.
1996-10-04 10:33:13 +00:00
Jordan K. Hubbard
890c2894d8 Make return or newline synonymous with down-arrow in the value editor.
It's a lot easier to whap through multiple changes if you can use the return
key.
1996-10-03 07:51:40 +00:00
Jordan K. Hubbard
a1406d7cf0 Fix stupid typo. 1996-10-03 01:22:22 +00:00
Jordan K. Hubbard
e669728232 Add fxp and vx to list of known device types. 1996-10-03 01:01:01 +00:00
Jordan K. Hubbard
0c8c5f852a scresume erroneously used before declared. Move the function
rather than add another APM ifdef just for the forward decl.
[Boy, sure a lot of warnings in here!]
1996-10-03 00:42:27 +00:00
Søren Schmidt
4a8aeffeb2 Fixed the userconfig problem (and one with ddb as well).
The rudimentary support for a splash page is there, and works, it
just needs a splash page...
1996-10-02 22:00:38 +00:00
Jordan K. Hubbard
1ffb1e5eb6 New support for displaying PCI devices without making you insane.
Submitted-by: msmith [bless his heart]
1996-10-02 08:09:09 +00:00
Paul Traina
14b7c0f2f9 add SC_SPLASH_SCREEN to opt_syscons.h (sigh) 1996-10-02 03:48:09 +00:00
Søren Schmidt
d58801b2ee Fixed the "missing updates" reported by ache.
Moved a little closer to having a splash page capability.
1996-10-01 23:24:09 +00:00
Jordan K. Hubbard
10dce6c9f3 #ifdef another instance of toggle_splash_screen() which Soren missed. 1996-10-01 07:38:14 +00:00
Paul Traina
6e702c9964 Document the Adaptec driver options for tagged command queueing and SCB
paging (with a warning not to use SCB paging) and create an opt_aic7xxx.h
file for these options.
1996-10-01 03:01:06 +00:00
Søren Schmidt
ebe3b2aabd Dont make splash screen the default :) 1996-09-30 23:10:35 +00:00
Søren Schmidt
a221620c79 Fix a couble of nasties regarding mouse pointer and different
resolutions.
Allow middle mouse button to be used for pasting.
Also added the beginnings of support for a splash page.
1996-09-30 23:00:58 +00:00
Bruce Evans
92d0aa20dc Work around UMC8669F and Startech UART bugs by not writing to the
divisor latch registers if the registers wouldn't change.

Use the default console cfcr setting while setting the divisor
latch registers for console i/o.  Input may be messed up by
transiently changing the cfcr.

Use a usual cfcr setting while setting the divisor latch registers
in the probe.  This shouldn't matter, but this is not the place to
test the UART's handling of 5 bit words.

Removed a stale devfs comment.
1996-09-30 12:22:27 +00:00
Bruce Evans
edbfbd9280 Whaddya know, visual userconfig sort of supports pci, but the support
was always disabled because "pci.h" wasn't included.  Now the configured
pci devices are listed and you can edit bogus flags for them.

Fixed bitrot in the disabled code.  A used #include was removed and const
poisoning wasn't fixed.

Removed unused #include.
1996-09-30 11:25:19 +00:00
Bruce Evans
ece15d78ea Added "memory" to clobber list in invlpg(). It needs it if invltlb()
needs it.

Fixed style in invlpg().

Sorted recently renamed functions.

Added prototypes in the non-gcc section for recently added/renamed
functions.
1996-09-29 18:35:07 +00:00
John Dyson
27e9b35e07 Essentially rename pmap_update to be invltlb. It is a very machine
dependent operation, and not really a correct name.  invltlb and invlpg
are more descriptive, and in the case of invlpg, a real opcode.

Additionally, fix the tlb management code for 386 machines.
1996-09-28 22:37:57 +00:00
Bruce Evans
f53687f7b5 Restored my change in rev.1.119 which was clobbered by the previous commit. 1996-09-28 15:28:40 +00:00
John Dyson
9299d3c4bb Move pmap_update_1pg to cpufunc.h. Additionally,
use the invlpg opcode instead of the nasty looking .byte directives.
There are some other minor micro-level code improvements to pmap.c
1996-09-28 04:22:46 +00:00
Bruce Evans
e2e0d560a2 Added -I- to ${INCLUDES}. This makes 4.4Lite's (mis?)use of "foo.h"
for headers in the compile directory work unsurprisingly.  Without
-I-, the search for "foo.h" begins in the directory of the file
that includes it, and the compile directory is only searched because
`-I.' is in ${INCLUDES}.

Removed -I$S/sys from ${INCLUDES}.  It was once necessary to find
things like "param.h" in $S/sys.  Now <sys/param.h> is found in $S.
1996-09-27 16:34:16 +00:00
Peter Wemm
ed82824ef8 Some warning cleanups. There were some needless casts that also caused
gcc -Wcast-qual to scream.  There's still quite a few left, but since I'm
cleaning out my tree, I'll commit these now.
1996-09-27 13:50:59 +00:00
Peter Wemm
32d8f04c11 part 2 of the bsdi compat tweak attempt. I believe that BSDI use both
lcall 7,0 (ie: ldt slot 0) and lcall 0x87,0 (ldt slot 16, it's shifted
three bits to the left).  I was fiddling with this so long ago, I don't
recall the specifics.
1996-09-27 13:38:02 +00:00
Peter Wemm
90af01bef3 Apparently, BSDI have a new system call gate. I was experimenting
with this quite a while ago when somebody reported a BSD/OS 2.1 binary
that wouldn't run.  I'm pretty sure they tried it and I'm pretty sure
they mentioned to me that the patch worked.
1996-09-27 13:33:49 +00:00
Peter Wemm
ad3bbe7a2d Drat, missed this prototype for random_select(). 1996-09-27 13:29:41 +00:00
Peter Wemm
983febf3dc I've been meaning to commit this for months. Implement select()
for /dev/random and /dev/urandom.  Both are always writable, urandom is
always readable, and /dev/random is readable when >= 8 bits are in the
pool.
1996-09-27 13:25:13 +00:00
Paul Traina
b3f3fea5fd Fix a couple of bugs causing false positives 1996-09-26 20:52:13 +00:00
Bruce Evans
388dfa7112 Fixed a few hundred warnings (2400 in LINT) for signed vs unsigned
comparisons in the inb() and outb() macros.  I decided that int args
are OK here.  Any type that can hold a u_int16_t without overflow
is correct, and 32-bit types are optimal.

Introduced a few tens of warnings (100 in LINT) for use of pessimized
(short) types for the port arg.  Only a few drivers are affected by
this.  u_short pessimizations aren't detected.

Added `__extension__' before the statement-expression in inb() so
that it can be compiled without warnings by gcc -pedantic.
1996-09-24 17:47:59 +00:00
Bruce Evans
0c8ea4d48c Eliminated includes of the "temporary" backwards compatibility header
<sys/dir.h> in applications.  Maintained existing (inadequate) ifdefs
for dir.h vs dirent.h in libdialog, amd and rarpd, but didn't add any
new ones.
1996-09-24 08:08:11 +00:00
Bruce Evans
ebedb5ad97 Cleaned up all headers that include <sys/ioctl.h> or <sys/ioccom.h>:
- don't include <sys/ioctl.h> in any header.  Include <sys/ioccom.h>
  instead.  This was already done in 4.4Lite for the most important
  ioctl headers.  Header spam currently increases kernel build
  times by 10-20%.  There are more than 30000 #includes (not counting
  duplicates) for compiling LINT.
- include <sys/types.h> if and only it is necessary to make the header
  almost self-sufficient (some ioctl headers still need structs from
  elsewhere).
- uniformized idempotency ifdefs.  Copied the style in the 4.4Lite
  ioctl headers.
1996-09-21 14:59:43 +00:00
Bruce Evans
83f52dabab Include <sys/filio.h> explicitly - don't depend on <machine/soundcard.h>
bogusly defining non-soundcard ioctls.
1996-09-21 14:53:28 +00:00
Bruce Evans
253c0899b2 Don't include <sys/conf.h> for the kernel in disk-related headers.
It is needed for implementation details but very little of it is
needed for the interface.  Include it in the few places that didn't
already include it.

Include <sys/ioccom.h> in <sys/disklabel.h> (as already in
<sys/diskslice.h>) so that all the disk-related headers are almost
self-sufficient.
1996-09-20 17:39:44 +00:00
Bruce Evans
ec55e44ec8 Changed an arg name in the pseudo-prototype for bzero() to match
the prototype.

Put the jump table for i486_bzero() in the data section.  This
speeds up i486_bzero() a little on Pentiums without significantly
affecting its speed on 486's.

Don't waste time falling through 14 nop's to return from do1 in
i486_bzero().

Use fastmove() for counts >= 1024 (was > 1024).  Cosmetic.

Fixed profiling of fastmove().

Restored meaningful labels from the pre-1.1 version in fastmove().
Local labels are evil.

Fixed (high resolution non-) profiling of __bb_init_func().
1996-09-20 16:52:09 +00:00
Poul-Henning Kamp
a6e173ca49 Various de-bogotifications of userconfig. 1996-09-19 08:32:37 +00:00
Poul-Henning Kamp
e8993539b8 Add APM_IDLE_CPU option, that is off by default.
I maintain that it saves more power to simply "hlt" the CPU than to
spend tons of time trying to tell the APM bios to do the same.
In particular if you do it 100 times a second...
1996-09-19 08:28:16 +00:00
Poul-Henning Kamp
1e882d2791 Fix something that has annoyed me since day one of userconfig: when the
<More> prompt receives a 'q', just abandon the list, the user wants out.
1996-09-15 19:35:23 +00:00
Bruce Evans
831031ce00 Attached simple external ddb commands show rtc', show pgrpdump'
and `show cbstat'.  The pgrpdump code was previously controlled by
`#ifdef DEBUG'.
1996-09-14 10:53:48 +00:00
Bruce Evans
2e82980a4c Moved instantiation of `poff' to sys.c. It is no longer used in disk.c.
Saved a few bytes by copying `dosdev' and/or `name' to local variables.
This optimization (for dosdev) was done in one place before but this
was lost in the devread() cleanup.   This optimization (for dosdev)
can almost be done by bogusly declaring dosdev as const, but gcc still
often space-pessimizes code like the following:

	extern const int dosdev; ... foo(dosdev); bar(dosdev);

gcc often doesn't bother to copy dosdev to a temporary local because
the local would have to be preserved in memory across the call to
foo().  OTOH, for

	extern int dosdev; ... auto int dosdev_copy = dosdev; ...
		foo(dosdev_copy); bar(dosdev_copy);

the copy must be made because foo() might alter dosdev.
1996-09-14 07:41:00 +00:00
Bruce Evans
310abe0579 Removed declarations of recently deleted variables and cleaned up
#includes.
1996-09-14 07:38:14 +00:00
Bruce Evans
d154cceba7 Potentially saved a whole 4 bytes and reduced bogusness by eliminating
the pointer to the string "/kernel".  This pointer was once only
statically to once save space, but it has had to be dynamically
initialized for some time, so the static initialization just wastes
space.  The string gets moved to the text section, so the actual
savings may be negative due to padding.
1996-09-14 07:12:02 +00:00
Bruce Evans
4fab2f9bc7 Changed cncheckc() interface so that it is 8-bit clean - return -1
instead of 0 if there is no input.

pcvt_drv.c:
Partially fixed pccncheckc().  It returned a boolean value instead of
the character that it fetches from the input fifo (if any).  I think
it still discards characters after the first for multi-char input.
1996-09-14 04:30:32 +00:00
Bruce Evans
daed6ffd24 Changed cncheckc() interface so that it is 8-bit clean - return -1
instead of 0 if there is no input.

syscons.c:
Added missing spl locking in sccncheckc().  Return the same value as
sccngetc() would.  It is wrong for sccngetc() to return non-ASCII, but
stripping the non-ASCII bits doesn't help.
1996-09-14 04:27:46 +00:00
Bruce Evans
40b55a34ae Changed cncheckc() interface so that it is 8-bit clean - return -1
instead of 0 if there is no input.
1996-09-14 04:25:32 +00:00
Bruce Evans
8b3fb3e16d Removed another devconf leftover. A fat devconf support function was
still being used just to support printing of the device name in the
probe.  Restored the method used in rev.1.6 and changed it to print
the same strings as the previous revision.

Reviewed by:	Paul Richards
1996-09-14 01:26:16 +00:00
Bruce Evans
c254b6e8db Made debugging code (pmap_pvdump()) compile again so that I can test LINT.
I don't know if it actually works.
1996-09-13 07:10:00 +00:00
Bruce Evans
fddbd6ddb8 Removed another devconf leftover.
Fixed a new #include style bug.
Removed an unused #include.
1996-09-13 06:48:21 +00:00
Bruce Evans
5a175c1c5d Don't compile a 256-byte unused table in the pca driver.
The other 256-byte table in ulaw.h still gets duplicated if both
pca and snd are configured.
1996-09-13 06:29:30 +00:00
Bruce Evans
cefdbb0448 Added undocumented option SPX_HACK. 1996-09-13 05:54:39 +00:00
Satoshi Asami
0e408c25a1 Another round of merge/update.
(1) Add PC98 support to apm_bios.h and ns16550.h, remove pc98/pc98/ic
(2) Move PC98 specific code out of cpufunc.h (to pc98.h)
(3) Let the boot subtrees look more alike

Submitted by:	The FreeBSD(98) Development Team
		<freebsd98-hackers@jp.freebsd.org>
1996-09-12 11:12:18 +00:00
John Dyson
dba940b46e Primarily a fix so that pages are properly tracked for being
modified.  Pages that are removed by the pageout daemon were
the worst affected.  Additionally, numerous minor cleanups,
including better handling of busy page table pages.  This
commit fixes the worst of the pmap problems recently introduced.
1996-09-12 04:54:55 +00:00
Poul-Henning Kamp
96fc6efbe3 Make userconfig two (default: on) options:
USERCONFIG to enable
	VISUAL_USERCONFIG to get the gui stuff too.
Requested by: pst
1996-09-11 19:53:45 +00:00
Poul-Henning Kamp
078e82404e The intended usage is:
cat /usr/mdec/rawboot /sys/compile/FOO/kernel | fdwrite

That should explain it all  :-)
1996-09-11 19:25:12 +00:00
Poul-Henning Kamp
b679d552d3 Add #ifdef for RAWBOOT.
remove some #if 0 stuff.
1996-09-11 19:23:11 +00:00
Poul-Henning Kamp
8b5d3828b2 Add "rawboot", sort the subdirs. 1996-09-11 19:22:21 +00:00
Nate Williams
aa5167c963 Fixed so that the card will go into promiscuous mode for BPF.
Submitted by:	Bill Kish <kish@osf.org>
1996-09-11 16:11:21 +00:00
John Dyson
690db31d04 A minor fix to the new pmap code. This might not fix the global problems
with the last major pmap commits.
1996-09-11 03:46:41 +00:00
Bruce Evans
b568ea4e01 Removed more devconf leftovers. 1996-09-10 23:31:13 +00:00
Bruce Evans
dad0de774e Removed bogus LARGMEM code and option. The code paniced when
biosextmem > 65536, but biosextmem is a 16-bit quantity so it is
guaranteed to be < 65536.  Related cruft for biosbasemem was
mostly cleaned up in rev.1.26.
1996-09-10 23:07:04 +00:00
Bruce Evans
683cbdf4af Fixed spelling of new SC_KBD_PROBE_WORKS option in options.i386.
It worked because it is spelled correctly in LINT.

Added old obscure syscons options MAXCONS, SLOW_VGA and XT_KEYBOARD.
This file should be sorted both alphabetically and on the module
name by using a consistent prefix for each module, but there is no
consistency in the old options.  E.g., MAXCONS is spelled PCVT_NSCREENS
for pcvt.
1996-09-10 21:38:47 +00:00
Poul-Henning Kamp
980b7c9573 Rather than adding more gunk here, clean some of it up:
devread() had a bogus interface, cleaned up.
	Bread() did an unneeded bcopy(), don't.
Saves 80 bytes and some time.
1996-09-10 21:18:40 +00:00
Peter Wemm
9545a0eaa4 Hack workaround XFree86 switching failure when used with /dev/sysmouse
and xdm, possibly in general.

What was happening was that the server was doing a tcsetattr(.. TCSADRAIN)
on the mouse fd after a write.  Since /dev/sysmouse had a null t_oproc,
the drain failed with EIO.  Somehow this spammed XFree86 (!@&^#%*& binary
release!!), and the driver was left in a bogus state (ie: switch_in_progress
permanently TRUE).

The simplest way out was to implement a dummy scmousestart() routine to
accept any characters from the tty system and toss them into the void.

It would probably be more correct to intercept scwrite()'s to the mouse
device, but that's executed for every single write to the screen.
Supplying a start routine to eat the characters is only executed for the
mouse port during startup/shutdown, so it should be faster.
1996-09-10 19:14:49 +00:00
Bruce Evans
80f495ec7e Backed out last change. It depends on the future change of adding
-I- to CFLAGS.  <sb.h> must currently be used to give the version
of sb.h in the current directory, while "sb.h" in the buggy version
gave the (wrong) version in the source directory.  Searching in the
source directory first is normal, but is the reverse of the order
suggested by the 4.4Lite2 #include style.  -I- will remove the
ambiguities.
1996-09-10 19:09:12 +00:00
Bruce Evans
f313170d3c Updated #includes to 4.4Lite style. 1996-09-10 08:32:01 +00:00
Søren Schmidt
b1538b1658 The poor nsccons variable was gone agian this time hidden by
an ifdef , wonder who broke it this time :)

Submitted by:	 ache
1996-09-09 19:02:26 +00:00
Søren Schmidt
47382cd1e0 Make syscons replicate a mousesystems mouse on minor 128..
This enables other consumers of the mouse, to get it info via
moused/syscons.
In order to use it run moused (from sysconfig), and then tell
your Xserver that it should use /dev/sysmouse (mknod sysmouse c 12 128)
and it a mousesystems mouse. Everybody will be happy then :)
Remember that moused still needs to know what kind of mouse you
have..

Comments welcome, as is test results...
1996-09-08 21:31:56 +00:00
John Dyson
5070c7f8c5 Addition of page coloring support. Various levels of coloring are afforded.
The default level works with minimal overhead, but one can also enable
full, efficient use of a 512K cache.  (Parameters can be generated
to support arbitrary cache sizes also.)
1996-09-08 20:44:49 +00:00
John Dyson
b8e251a56d Improve the scalability of certain pmap operations. 1996-09-08 16:57:53 +00:00
Poul-Henning Kamp
40f3771f7f Various cleanups for remanents of devconf. 1996-09-08 10:44:18 +00:00
Søren Schmidt
fa630ea6eb Fixed another little both in the devconf removal. 1996-09-08 10:28:23 +00:00
Jordan K. Hubbard
885e672626 Finish what phk started here in removing devconf. The ATAPI_STATIC case
was still broken, as was the normal case since atapi_attach() was called
internally.
1996-09-08 01:31:27 +00:00
Bruce Evans
a7265255cc Fixed another easy case of const poisoning in the kernel. Cosmetic.
(A pointer to a const was misused to avoid loading loading the same
value twice, but gcc does exactly the same optimization automatically.
It can see that the value hasn't changed.)
1996-09-07 21:47:53 +00:00
Bruce Evans
24c074ad8d Remove boot2 when the size test fails so that rebuilding without fixing
the problem doesn't bogusly succeed.

Print size failures to stderr instead of stdout and don't print bells
and whistles.
1996-09-07 21:16:44 +00:00
Bruce Evans
6074a34497 Saved 48 bytes (46 before padding) using assorted nano-optimizations:
- avoiding strcmp("?" saved 12 bytes.  gcc inlined the strcmp()
  but this takes as much or more code as a function call.  The
  inlining was bogus because the strcmp() in the bootstrap isn't
  standard.

- using a char instead of an int for the boolean `last_only' saved 8
  bytes.  Booleans should usually be represented as chars on the i386.

- simplifying the return tests saved 9 bytes.

- using putc instead of printf to print a newline saved 3 bytes of code
  and 2 bytes of const data.

- avoiding `else's by always doing the else clause and fixing it up
  saved 4+8 bytes.
1996-09-07 21:06:43 +00:00
Bruce Evans
ae6e81ef56 Saved 48 bytes (56 before padding) by moving a variable declaration.
gcc always generates large code for accesses to globals.  For locals
it only generates large code if there are more than 128 bytes of
locals.  It sorts scalar locals after array locals to pessimize for
space in the usual case when there are more (static) references to
scalars than to arrays.

Saved another 16 bytes (13 before padding) by adding a `continue'.

Fall-through tests normally save space, but here one of them made
gcc do space-unoptimal register allocation (it allocates ch in %bl
because preserving this register across function calls is "free",
but comparisions with %bl take one byte fewer than comparsions with
%bl).
1996-09-07 20:18:04 +00:00
Nate Williams
8d250e2915 Disable 'suspend' as it tends to lockup computers with the current APM
driver.
1996-09-07 17:52:56 +00:00
Nate Williams
7d674f8643 Unused file. 1996-09-07 17:51:54 +00:00
Nate Williams
db81a742b3 APM_DSVALUE_BUS is no longer with the addition of the correct fix to
machdep.c.  We no longer walk on the data segment the BIOS sets up.
1996-09-07 17:41:22 +00:00