Commit Graph

626 Commits

Author SHA1 Message Date
Bruce Evans
87bc5d1973 Removed unnecessary forward declarations of incomplete structs. 1996-06-08 11:21:19 +00:00
Jordan K. Hubbard
b3e41931c9 A trailing patch Jim left out of the last commit.
Submitted-by: james
1996-06-07 22:55:14 +00:00
Søren Schmidt
70013b5739 Added missing CR0_NW define for Cyrix 486DLC support. It's still not
stable on my hardware, but its better... *sigh*

Obtained from: NetBSD
1996-06-03 19:37:38 +00:00
Peter Wemm
ee323f62ad Jump some hoops to have the *.s code being able to be run through both an
ansi and traditional cpp.

The nesting rules of macros are different, which required some changes.
Use __CONCAT(x,y) instead of /**/.
Redo some comments to use /* */ rather than "# comment" because the ansi
  cpp cares about those, and also cares about quote matching.
1996-05-31 01:08:08 +00:00
Garrett Wollman
f66e235a13 Add an incremental checksum update routine. Perhaps some i386 assembly
guru out there can find a way to take advantage of little-endianness to
make this computation more efficient.  (I am certain that it can be done,
but haven't managed to make it work myself.)
1996-05-23 20:11:48 +00:00
John Dyson
b18bfc3da7 This set of commits to the VM system does the following, and contain
contributions or ideas from Stephen McKay <syssgm@devetir.qld.gov.au>,
Alan Cox <alc@cs.rice.edu>, David Greenman <davidg@freebsd.org> and me:

	More usage of the TAILQ macros.  Additional minor fix to queue.h.
	Performance enhancements to the pageout daemon.
		Addition of a wait in the case that the pageout daemon
		has to run immediately.
		Slightly modify the pageout algorithm.
	Significant revamp of the pmap/fork code:
		1) PTE's and UPAGES's are NO LONGER in the process's map.
		2) PTE's and UPAGES's reside in their own objects.
		3) TOTAL elimination of recursive page table pagefaults.
		4) The page directory now resides in the PTE object.
		5) Implemented pmap_copy, thereby speeding up fork time.
		6) Changed the pv entries so that the head is a pointer
		   and not an entire entry.
		7) Significant cleanup of pmap_protect, and pmap_remove.
		8) Removed significant amounts of machine dependent
		   fork code from vm_glue.  Pushed much of that code into
		   the machine dependent pmap module.
		9) Support more completely the reuse of already zeroed
		   pages (Page table pages and page directories) as being
		   already zeroed.
	Performance and code cleanups in vm_map:
		1) Improved and simplified allocation of map entries.
		2) Improved vm_map_copy code.
		3) Corrected some minor problems in the simplify code.
	Implemented splvm (combo of splbio and splimp.)  The VM code now
		seldom uses splhigh.
	Improved the speed of and simplified kmem_malloc.
	Minor mod to vm_fault to avoid using pre-zeroed pages in the case
		of objects with backing objects along with the already
		existant condition of having a vnode.  (If there is a backing
		object, there will likely be a COW...  With a COW, it isn't
		necessary to start with a pre-zeroed page.)
	Minor reorg of source to perhaps improve locality of ref.
1996-05-18 03:38:05 +00:00
Jordan K. Hubbard
734d08a223 A patch for the meteor device driver. It fixes:
1) A spelling error pointed out by Paco Hope.
       2) A bug in the range checking routing pointed out by Jim Bray.
       3) Enables the setting of frames per second.
Submitted-By: Jim Lowe <james@miller.cs.uwm.edu>
1996-05-17 09:43:15 +00:00
Peter Wemm
346bbdf488 Add $Id$ 1996-05-04 08:42:14 +00:00
Paul Traina
3e627c9e2a Update to 1.1beta5d 1996-05-04 07:05:55 +00:00
Peter Wemm
dcde8b4904 This commit was generated by cvs2svn to compensate for changes in r15599,
which included commits to RCS files with non-trunk default branches.
1996-05-04 06:31:39 +00:00
Peter Wemm
c1e8e76993 Import kernel parts of the v0.0.5alpha Stallion driver(s).
This is now two seperate drivers that support (I think) all of Stallions's
range, including the high performance intelligent cards, and their older
cards.

Submitted by: Greg Ungerer (gerg@stallion.oz.au)

(User-mode parts and patches to follow)
1996-05-04 06:31:39 +00:00
Poul-Henning Kamp
aa8de40ae5 Another sweep over the pmap/vm macros, this time with more focus on
the usage.  I'm not satisfied with the naming, but now at least there is
less bogus stuff around.
1996-05-03 21:01:54 +00:00
Poul-Henning Kamp
5084d10dd0 Move atdevbase out of locore.s and into machdep.c
Macroize locore.s' page table setup even more, now it's almost readable.
Rename PG_U to PG_A (so that I can...)
Rename PG_u to PG_U.  "PG_u" was just too ugly...
Remove some unused vars in pmap.c
Remove PG_KR and PG_KW
Remove SSIZE
Remove SINCR
Remove BTOPKERNBASE

This concludes my spring cleaning, modulus any bug fixes for messes I
have made on the way.

(Funny to be back here in pmap.c, that's where my first significant
contribution to 386BSD was... :-)
1996-05-02 22:25:18 +00:00
Poul-Henning Kamp
65ceccb03c This can go now. 1996-05-02 14:21:57 +00:00
Poul-Henning Kamp
e911eafcba removed:
CLBYTES PD_SHIFT PGSHIFT NBPG PGOFSET CLSIZELOG2 CLSIZE pdei()
        ptei() kvtopte() ptetov() ispt() ptetoav() &c &c
new:
        NPDEPG

Major macro cleanup.
1996-05-02 14:21:14 +00:00
Bruce Evans
2dafbfcbab Added calibration the i8254 and the i586 clocks agains the RTC at boot
time.  The results are currently ignored unless certain temporary options
are used.

Added sysctls to support reading and writing the clock frequency variables
(not the frequencies themselves).  Writing is supposed to atomically
adjust all related variables.

machdep.c:
Fixed spelling of a function name in a comment so that I can log this
message which should have been with the previous commit.

Initialize `cpu_class' earlier so that it can be used in startrtclock()
instead of in calibrate_cyclecounter() (which no longer exists).

Removed range checking of `cpu'.  It is always initialized to CPU_XXX
so it is less likely to be out of bounds than most variables.

clock.h:
Removed I586_CYCLECTR().  Use rdtsc() instead.

clock.c:
TIMER_FREQ is now a variable timer_freq that defaults to the old value of
TIMER_FREQ.  #define'ing TIMER_FREQ should still work and may be the best
way of setting the frequency.

Calibration involves counting cycles while watching the RTC for one second.
This gives values correct to within (a few ppm) + (the innaccuracy of the
RTC) on my systems.
1996-05-01 08:39:02 +00:00
Bruce Evans
eabe0f9f57 Don't return unused values in cpu_switch() or savectx().
Don't preserve unused registers in the NPX case in savectx().
1996-05-01 03:47:04 +00:00
Bruce Evans
e506fdf557 Oops, this should have been with the ctype changes.
Fixed longstanding namespace convolution involving rune_t vs wchar_t...

This change breaks similar (but more convoluted) convolutions in the
stddef.h in gcc distributions.  Ports of gcc should avoid using the
gcc headers.
1996-05-01 00:47:05 +00:00
Poul-Henning Kamp
68c1eb1215 pte.h: Add the VADDR(pdi,pti) macro to construct virtual address from
page dir+table index.
pmap.h: remove NUPDE, it was wrong and not used.  Sanitize KSTKPTEOFF.
vmparam.h: Calculate virtual addr from PDI+PTI from pmap.h rather than
using magic math.  Remove UPDT, not used.
1996-04-30 12:02:12 +00:00
Poul-Henning Kamp
68832d3037 Fix cpu_fork for real.
Suggested by:	 bde
1996-04-25 06:20:19 +00:00
Nate Williams
ceff12b4c4 Adds the APM hooks into the generic pccard kernel files. With this code
in place device drivers can now register power-down/power-up routines so
that we can use common routines to power-up/power-down cards for
insert/removals, suspend/resume, etc..

Reviewed by:	phk
Submitted by:	the 'Nomads'
1996-04-23 16:03:08 +00:00
Nate Williams
b34b86510b Updated the laptop 'kludge' file. Hopefully this can go away soon.
Submitted by:	The 'Nomads'
1996-04-22 22:29:40 +00:00
Nate Williams
e597b4972e - add apm to the GENERIC kernel (disabled by default), and add some comments
regarding apm to LINT
- Disabled the statistics clock on machines which have an APM BIOS and
  have the options "APM_BROKEN_STATCLOCK" enabled (which is default
  in GENERIC now)
- move around some of the code in clock.c dealing with the rtc to make
  it more obvios the effects of disabling the statistics clock

Reviewed by:	bde
1996-04-22 19:40:28 +00:00
Poul-Henning Kamp
6f1e6c97de savectx returns through cpu_switch in case of the child, so it must
return void just like cpu_switch.  Fix prototype and usage from machdep.c
1996-04-19 07:28:04 +00:00
Poul-Henning Kamp
7d2392141d Fix a bogon. cpu_fork & savectx ecpected cpu_switch to restore %eax,
they shouldn't.
1996-04-18 21:34:53 +00:00
Garrett Wollman
97f588a78b Add an inline function to compute the common-case IP header checksum. 1996-04-18 15:39:27 +00:00
Bruce Evans
c9b9c54d1f Changed _BSD_PID_T_ from long to int. Lite2 changed pid_t from long to
int32_t in <sys/types.h> but this change was missed when the Lite2 types
were merged.
1996-04-13 14:25:06 +00:00
Nate Williams
9368fc2012 hp300 -> i386 1996-04-10 05:27:11 +00:00
Bruce Evans
5dbd168e2e Changed bdb() to breakpoint() and always enable it.
Made the style more consistent, especially for the new Pentium functions.
1996-04-07 18:30:56 +00:00
Bruce Evans
73dc05d67c Moved declaration of bootverbose to a better place. It isn't
machine-dependent.

Moved declaration of cpu_fork() to a better place.  Only its
implementation is machine-dependent.
1996-04-07 16:44:28 +00:00
Andrey A. Chernov
fe0d5f43c5 Add wall_cmos_clock sysctl variable, needed to manage adjkerntz even for
UTC cmos clocks (needed for Local Timezone FSes)
1996-04-05 03:36:31 +00:00
John Dyson
030ad08012 Fixed a problem that the UPAGES of a process were being run down
in a suboptimal manner.  I had also noticed some panics that appeared
to be at least superficially caused by this problem.  Also, included
are some minor mods to support more general handling of page table page
faulting.  More details in a future commit.
1996-04-03 05:23:44 +00:00
Bruce Evans
048cd610ad Finished removing NOP macros. 1996-03-31 04:17:25 +00:00
Bruce Evans
ef9805a3c8 Moved rtcin() to clock.c.
Always delay using one inb(0x84) after each i/o in rtcin() - don't
do this conditional on the bogus option DUMMY_NOPS not being defined.
If you want an optionally slightly faster rtcin() again, then inline
it and use a better named option or sysctl variable.  It only needs
to be fast in rtcintr().
1996-03-31 04:05:36 +00:00
Bruce Evans
78966e20d9 Parenthesized macros.
Fixed munged tabs.
1996-03-29 14:14:07 +00:00
Garrett Wollman
28dc3d2757 >Blush<. Use the correct opcode for the WRMSR instruction. 1996-03-28 20:39:45 +00:00
Jordan K. Hubbard
2fa43eefcf A bug fix and a couple of new modes for the meteor driver.
Submitted-By: Jim Lowe <james@miller.cs.uwm.edu>
1996-03-28 20:28:14 +00:00
Garrett Wollman
d69e850255 Add support for Pentium and Pentium Pro performance counters.
(This code is as yet untested; to come after man page is written.)
This also adds inlines to cpufunc.h for the RDTSC, RDMSR, WRMSR, and RDPMC
instructions.  The user-mode interface is via a subdevice of mem.c;
there is also a kernel-size interface which might be used to aid
profiling.
1996-03-26 19:57:56 +00:00
Paul Traina
4374dd874b Add support for /very/ experimental -e (exposure) option.
Not documented yet, because it's for grownups and geeks for now.
1996-03-21 08:19:10 +00:00
Nate Williams
dc6fd44943 Return the status of the APM support (enabled/disabled) with the
APM_GETINFO ioctl.
1996-03-13 00:42:56 +00:00
David Greenman
dc92971788 Killed some historical #define cruft that we've never used in FreeBSD:
UDOT_SZ
SYSPTSIZE
USRPTSIZE
MSGBUFPTECNT
DMMIN
DMMAX
DMTEXT
USRIOSIZE
VM_PHYS_SIZE
1996-03-12 15:37:58 +00:00
Nate Williams
638f228080 Bring in some prototypes that shouldn't have been dependant on
APM_SLOWSTART, which are generic APM functions.
1996-03-12 05:51:35 +00:00
Nate Williams
f42e1448c8 Bring in most of Bruce's prot_to_real() changes into the APM BIOS
startup code.

Reviewed by:  bde
1996-03-11 06:48:57 +00:00
Jeffrey Hsu
d09d34b4e7 From Lite2: add typedef for register_t.
Reviewed by:	davidg & bde
1996-03-11 02:23:56 +00:00
Peter Wemm
d66a506616 Mega-commit for Linux emulator update.. This has been stress tested under
netscape-2.0 for Linux running all the Java stuff.  The scrollbars are now
working, at least on my machine. (whew! :-)

I'm uncomfortable with the size of this commit, but it's too
inter-dependant to easily seperate out.

The main changes:

COMPAT_LINUX is *GONE*.  Most of the code has been moved out of the i386
machine dependent section into the linux emulator itself.  The int 0x80
syscall code was almost identical to the lcall 7,0 code and a minor tweak
allows them to both be used with the same C code.  All kernels can now
just modload the lkm and it'll DTRT without having to rebuild the kernel
first.  Like IBCS2, you can statically compile it in with "options LINUX".

A pile of new syscalls implemented, including getdents(), llseek(),
readv(), writev(), msync(), personality().  The Linux-ELF libraries want
to use some of these.

linux_select() now obeys Linux semantics, ie: returns the time remaining
of the timeout value rather than leaving it the original value.

Quite a few bugs removed, including incorrect arguments being used in
syscalls..  eg:  mixups between passing the sigset as an int, vs passing
it as a pointer and doing a copyin(), missing return values, unhandled
cases, SIOC* ioctls, etc.

The build for the code has changed.  i386/conf/files now knows how
to build linux_genassym and generate linux_assym.h on the fly.

Supporting changes elsewhere in the kernel:

The user-mode signal trampoline has moved from the U area to immediately
below the top of the stack (below PS_STRINGS).  This allows the different
binary emulations to have their own signal trampoline code (which gets rid
of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so
that the emulator can provide the exact "struct sigcontext *" argument to
the program's signal handlers.

The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which
have the same values as the re-used SA_DISABLE and SA_ONSTACK which are
intended for sigaction only.  This enables the support of a SA_RESETHAND
flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal
semantics where the signal handler is reset when it's triggered.

makesyscalls.sh no longer appends the struct sysentvec on the end of the
generated init_sysent.c code.  It's a lot saner to have it in a seperate
file rather than trying to update the structure inside the awk script. :-)

At exec time, the dozen bytes or so of signal trampoline code are copied
to the top of the user's stack, rather than obtaining the trampoline code
the old way by getting a clone of the parent's user area.  This allows
Linux and native binaries to freely exec each other without getting
trampolines mixed up.
1996-03-02 19:38:20 +00:00
Jordan K. Hubbard
6380fb9d12 Hopefully, this will fix the problems that some people have been having with
the S-Video input.  It also has code in the driver for the meteor RGB support
and some other bug fixes.  I don't have a meteor RGB but I have been told
that it works.
Submitted by:	Jim Lowe <james@miller.cs.uwm.edu>
1996-03-02 06:08:53 +00:00
John Dyson
3eb77c8302 Fix a problem with tracking the modified bit. Eliminate the
ugly inline-asm code, and speed up the page-table-page tracking.
1996-02-25 03:02:53 +00:00
Joerg Wunsch
2e899e8a02 . move out the error and status register def's for wt into
<machine/wtio.h>, so mt(1) can print them,

. cosmetics: put the return type and the function name onto
  different lines.
1996-02-22 00:31:49 +00:00
Nate Williams
b2e8253ac3 Updated PC-CARD support to contain most of the code from the latest
Japanese BSD-Nomad release.

Reviewed by:    phk
Submitted by:   hosokawa@mt.cs.keio.ac.jp and the rest of the Nomads
1996-02-21 23:22:27 +00:00
Garrett Wollman
b1fea4ca10 Add a couple of macros I expect to need. 1996-02-07 21:52:57 +00:00
Garrett Wollman
9b44ff2214 Clean up Ethernet drivers:
- fill in and use ifp->if_softc
	- use if_bpf rather than private cookie variables
	- change bpf interface to take advantage of this
	- call ether_ifattach() directly from Ethernet drivers
	- delete kludge in if_attach() that did this indirectly
1996-02-06 18:51:28 +00:00
David Greenman
267173e72d Rewrote cpu_fork so that it doesn't use pmap_activate, and removed
pmap_activate since it's not used anymore. Changed cpu_fork so that
it uses one line of inline assembly rather than calling mvesp() to
get the current stack pointer. Removed mvesp() since it is no longer
being used.
1996-02-04 21:20:53 +00:00
Paul Traina
b184a4f4e4 Remove the ability for the user mode programs to specify bidirectional
vs unidirectional transfer modes.  The kernel handles hardware, user mode
programs shouldn't get in the way.

This cleans up some really ugly grots that I hated too. :-)

Suggested by: Sujal Patel <smpatel@wam.umd.edu>
1996-02-02 20:37:51 +00:00
Paul Traina
0b59977032 Add support for Connectix QuickCam(tm)
* warning: this user interface is still in flux pending negotiations
* with other quickcam driver authors.  It is _not_ compatible with the
* original linux interface due to the fact that it was too restrictive.
1996-02-02 19:26:37 +00:00
Jordan K. Hubbard
26a2ebbb95 Sync with latest Meteor and Spigot sources from James.
Submitted by:	Jim Lowe <james@miller.cs.uwm.edu>
1996-02-01 07:36:34 +00:00
Mike Pritchard
6c5e9bbdf5 Fix a bunch of spelling errors in the comment fields of
a bunch of system include files.
1996-01-30 23:02:38 +00:00
Garrett Wollman
3addba4f55 No longer use the cyclecounter to attempt to correct for late or missed
clock interrupts.

Keep a 1-in-16 smoothed average of the length of each tick.  If the
CPU speed is correctly diagnosed, this should give experienced users
enough information to figure out a more suitable value for `tick'.
1996-01-30 18:56:47 +00:00
Bruce Evans
dd87702a51 Allocate DMA bounce buffers only when requested by drivers. Only the
fd and wt drivers need bounce buffers, so this normally saves 32K-1K
of kernel memory.

Keep track of which DMA channels are busy.  isa_dmadone() must now be
called when DMA has finished or been aborted.

Panic for unallocated and too-small (required) bounce buffers.

fd.c:
There will be new warnings about isa_dmadone() not being called after
DMA has been aborted.

sound/dmabuf.c:
isa_dmadone() needs more parameters than are available, so temporarily
use a new interface isa_dmadone_nobounce() to avoid having to worry
about panics for fake parameters.  Untested.
1996-01-27 02:33:48 +00:00
Peter Wemm
bf6024ee3a Add commands for ptrace get/set registers.. (Same numbers as NetBSD) 1996-01-24 18:51:48 +00:00
David Greenman
2924d49169 Simplified savectx() a little and fixed a bug that caused it to return
garbage in the child process rather than "1" like it is supposed to.

Reviewed by:	bde
1996-01-23 02:39:24 +00:00
Jordan K. Hubbard
f8fbee91ae Newest version of the Matrox Meteor driver. Tested with various MBONE
tools and found to work better with both nv and vic.
Submitted by:	Jim Lowe <james@miller.cs.uwm.edu>
1996-01-21 10:26:54 +00:00
Bruce Evans
e65a471221 Removed declarations of nonexistent functions. 1996-01-16 07:42:08 +00:00
Bruce Evans
e5171bbec0 Fixed user-mode mcount which I broke in the previous revision.
Do it the old way for now.

Moved recent additions around a lot to minimise ifdefs.

Added prototypes.
1996-01-01 17:11:21 +00:00
Peter Wemm
a5b996a7ec recording cvs-1.6 file death 1995-12-30 19:02:48 +00:00
Bruce Evans
912e603778 Implemented non-statistical kernel profiling. This is based on
looking at a high resolution clock for each of the following events:
function call, function return, interrupt entry, interrupt exit,
and interesting branches.  The differences between the times of
these events are added at appropriate places in a ordinary histogram
(as if very fast statistical profiling sampled the pc at those
places) so that ordinary gprof can be used to analyze the times.

gmon.h:
Histogram counters need to be 4 bytes for microsecond resolutions.
They will need to be larger for the 586 clock.
The comments were vax-centric and wrong even on vaxes.  Does anyone
disagree?

gprof4.c:
The standard gprof should support counters of all integral sizes
and the size of the counter should be in the gmon header.  This
hack will do until then.  (Use gprof4 -u to examine the results
of non-statistical profiling.)

config/*:
Non-statistical profiling is configured with `config -pp'.
`config -p' still gives ordinary profiling.

kgmon/*:
Non-statistical profiling is enabled with `kgmon -B'.  `kgmon -b'
still enables ordinary profiling (and distables non-statistical
profiling) if non-statistical profiling is configured.
1995-12-29 15:30:05 +00:00
Mark Murray
aba89c509d 1) ifdef out some unused functions (for now)
2) improve 586 support
3) add 686 support
4) clean up comments etc
Submitted by:	bde
1995-12-29 08:04:32 +00:00
David Greenman
d079690c14 Made bzero a function vector and added a 586/686 optimized version of
bzero.
Deprecated blkclr (removed it).
Removed some old cruft from cpufunc.h.

The optimized bzero was submitted by Torbjorn Granlund <tege@matematik.su.se>
The kernel adaption and other changes by me.
1995-12-28 23:34:30 +00:00
Mark Murray
6a9bf141bd Clean up and make more universal. Next version of random device. 1995-12-27 11:19:41 +00:00
Bruce Evans
c6bbb6d152 Fixed staticizing. Some functions aren't static but depend on
the undocumented previously unLINTed option `APM_SLOWSTART'.
1995-12-25 07:38:47 +00:00
David Greenman
6410f76727 Add Pentium Pro CPU detection and special handling. For now, all the
optimizations we have for 586s also apply to 686s...this will be fine-
tuned in the future as appropriate.
1995-12-24 08:10:52 +00:00
David Greenman
2838c9682a Implemented a (sorely needed for years) double fault handler to catch stack
overflows.
It sure would be nice if there was an unmapped page between the PCB and
the stack (and that the size of the stack was configurable!). With the
way things are now, the PCB will get clobbered before the double fault
handler gets control, making somewhat of a mess of things. Despite this,
it is still fairly easy to poke around in the overflowed stack to figure
out the cause.
1995-12-19 14:30:50 +00:00
Bruce Evans
927c0b1131 Cleaned up prototypes in pmap headers: removed ones for nonexistent
functions; moved misplaced ones; restored most of KNFish formatting
from 4.4lite version; removed bogus __BEGIN/END_DECLS.
1995-12-17 07:39:05 +00:00
Poul-Henning Kamp
5e46340891 Make math_emulators LKMable. 1995-12-14 08:21:33 +00:00
John Dyson
a316d390bd Changes to support 1Tb filesizes. Pages are now named by an
(object,index) pair instead of (object,offset) pair.
1995-12-11 04:58:34 +00:00
Poul-Henning Kamp
6f4e0beb7e Staticize and cleanup. 1995-12-10 13:40:44 +00:00
Julian Elischer
87f6c6625d Pass 3 of the great devsw changes
most devsw referenced functions are now static, as they are
in the same file as their devsw structure. I've also added DEVFS
support for nearly every device in the system, however
many of the devices have 'incorrect' names under DEVFS
because I couldn't quickly work out the correct naming conventions.
(but devfs won't be coming on line for a month or so anyhow so that doesn't
matter)

If you "OWN" a device which would normally have an entry in /dev
then search for the devfs_add_devsw() entries and munge to make them right..
check out similar devices to see what I might have done in them in you
can't see what's going on..
for a laugh compare conf.c conf.h defore and after... :)
I have not doen DEVFS entries for any DISKSLICE devices yet as that will be
a much more complicated job.. (pass 5 :)

pass 4 will be to make the devsw tables of type (cdevsw * )
rather than (cdevsw)
seems to work here..
complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
Bruce Evans
ef6f4fab97 Moved some prototypes to a better place.
Removed stale prototypes.

Added prototypes.

Added empty lines.
1995-12-05 20:10:41 +00:00
Bruce Evans
d71f232008 __purified pmap_pte(). This seems to make no difference. 1995-12-03 18:37:44 +00:00
Bruce Evans
1630f073cf Moved inline functions for insque() and remque() to <sys/queue.h>.
Protected them with `#ifdef KERNEL' so that <sys/queue.h> is valid C++.
Added the necessary #includes of <sys/queue.h>.

These functions are bogus and should be replaced by the queue macros.
1995-12-03 13:45:34 +00:00
Bruce Evans
b667af1da9 Removed unused thread support (partly to get rid of its incomplete
function declarations).

Removed unused #includes (lots of vm ones).
1995-12-03 10:40:16 +00:00
Garrett Wollman
9350db19e7 Fix Pentium CPU rate diagnosis:
- Don't print out meaningless iCOMP numbers, those are for droids.
	- Use a shorter wait to determine clock rate to avoid deficiencies
	  in DELAY().
	- Use a fixed-point representation with 8 bits of fraction to store
	  the rate and rationalize the variable name.  It would be
	  possible to use even more fraction if it turns out to be
	  worthwhile (I rather doubt it).

The question of source code arrangement remains unaddressed.
1995-11-29 19:57:22 +00:00
Jordan K. Hubbard
d01b66804a A batch of Jim Lowe's patches:
o Add signed/unsigned functionality to the matrox meteor device driver.
	o Apply a few fixes to the sound driver.
	o Add a ``SPIGOT_UNSECURE'' compile time definition so, if one defines
	  SPIGOT_UNSECURE in their conf file, then they can use the spigot w/o
	  root.  There is a warning that this allows users access to the IO
	  page which is probably not secure.
Submitted by:	james
1995-11-29 01:07:59 +00:00
Peter Wemm
070fc2ce12 Mainly cosmetic cleanups... It now uses more consistant message reporting
on the console, and no longer uses "SLXOS" which I suspect may be a
trademark... (I'm not sure, but this is not really a SLXOS driver anyway)
1995-11-28 02:07:36 +00:00
Bruce Evans
512fef80a9 Completed function declarations and/or added prototypes. 1995-11-21 12:55:26 +00:00
Poul-Henning Kamp
4b2af45f4b Mega commit for sysctl.
Convert the remaining sysctl stuff to the new way of doing things.
the devconf stuff is the reason for the large number of files.
Cleaned up some compiler warnings while I were there.
1995-11-20 12:42:39 +00:00
Poul-Henning Kamp
708a8f9633 Removed:
#include <i386/isa/isa_device.h>
 #include <i386/eisa/eisaconf.h>
 #include <pci/pcireg.h>
 #include <pci/pcivar.h>
 #include <scsi/scsi_all.h>
 #include <scsi/scsiconf.h>
they are not needed, and slows down compilation.
1995-11-14 20:52:14 +00:00
Peter Wemm
5d0bad8280 Sync the public source with what I'm currently running.
Most of this is cleaning up, but there are some functional changes,
doc/comment improvements, error checking, gcc -Wall cleanups.  Input buffer
flushing is enabled now, although I'm still not quite certain it's right.
1995-11-09 21:53:48 +00:00
Justin T. Gibbs
869ed2435b Modifications for the new eisaconf. 1995-11-05 04:43:22 +00:00
Bruce Evans
4ff3de8e80 Added `#include "ioconf.h"' to <machine/conf.h> and cleaned up the
misplaced extern declarations (mostly prototypes of interrupt handlers)
that this exposed.  The prototypes should be moved back to the driver
sources when the functions are staticalized.

Added idempotency guards to <machine/conf.h>.  "ioconf.h" can't be
included when building LKMs so define a wart in bsd.kmod.mk to help
guard against including it.
1995-11-04 17:08:13 +00:00
Bruce Evans
4fda91c705 Moved prototypes for devswitch functions from conf.c and driver sources
to <machine/conf.h>.  conf.h was mechanically generated by
`grep ^d_ conf.c >conf.h'.  This accounts for part of its ugliness.  The
prototypes should be moved back to the driver sources when the functions
are staticalized.
1995-11-04 13:25:33 +00:00
Bruce Evans
7788eaeb2f Mask netisrs during softtty isrs. This may fix PR 798. SLIP and PPP
line discipline interrupt handlers more or less expect to be called at
spltty() == splimp(), although they have internal splimp()s that are
bogus if this expectation is satisfied.  They are called at splsoftty()
from many tty drivers, so they were not protected from being reentered
from their own netisrs.  They certainly don't expect that but are
apparently remarkably robust if it occurs.  The problem in PR 798 seems
to be caused by pppstart() being reentered and finishing off the output
in progress by following the (stale) sc->sc_outm pointer.  Then the
original pppstart() finds garbage in m2 after MFREE(m, m2).  slstart()
doesn't have internal state like sc_outm so reentry of it probably only
causes out of order and dropped packets.
1995-10-30 17:01:37 +00:00
Mark Murray
1bb2d3142b Theodore Ts'po's random number gernerator for Linux, ported by me.
This code will only be included in your kernel if you have
'options DEVRANDOM', but that will fall away in a couple of days.
Obtained from: Theodore Ts'o, Linux
1995-10-28 16:58:05 +00:00
Garrett Wollman
e2d4b1f051 Reduce jitter of Pentium microtime() implementation by letting the counter
free-run and doing a subtract in microtime() rather than resetting the
counter to zero at every clock tick.  In combination with the changes to
kern_clock.c, this should eliminate all the immediately obvious sources
of systematic jitter in timekeeping on Pentium machines.
1995-10-12 20:39:49 +00:00
Poul-Henning Kamp
92a69bc337 remove GCC divsi3 routines which are never used. 1995-10-05 10:32:47 +00:00
Jordan K. Hubbard
9e8433e6e0 This upgrades the driver for Cronyx-Sigma multiplexor boards
from version 1.2 to version 1.9.
Submitted by:	Serge Vakulenko, <vak@cronyx.ru>
1995-10-04 22:24:16 +00:00
Bruce Evans
2e69f359d1 Fix benign type mismatches in isa interrupt handlers. Many returned int
instead of void.
1995-09-19 18:55:37 +00:00
Peter Wemm
fbb8b7bb60 Move some kernel-only stuff to a kernel-only file.
Submitted by:	bde
1995-09-13 08:39:28 +00:00
Julian Elischer
c1ab55a72e Submitted by: Luigi Rizzo
Obtained from: Luigi and gunther
yeah I forgot this one....
1995-09-08 03:22:00 +00:00
Julian Elischer
8af5d536ff devfs changes..
changes to allow devices that don't probe (e.g. /dev/mem)
to create devfs entries
this required giving 'configure' its own SYSINIT entry
so we could duck in just before it with a DEVFS init
and some device inits..
my devfs now looks like:
./misc
./misc/speaker
./misc/mem
./misc/kmem
./misc/null
./misc/zero
./misc/io
./misc/console
./misc/pcaudio
./misc/pcaudioctl
./disks
./disks/rfloppy
./disks/rfloppy/fd0.1440
./disks/rfloppy/fd1.1200
./disks/floppy
./disks/floppy/fd0.1440
./disks/floppy/fd1.1200
also some sligt cleanups.. DEVFS needs a lot of work
but I'm getting back to it..
1995-09-03 05:43:50 +00:00
Jordan K. Hubbard
49148d6390 Jim's latest fixes.
Submitted by:	james
1995-09-01 00:25:18 +00:00
Jordan K. Hubbard
1d86961e14 Kernel components of Matrox Meteor driver.
Submitted by:	Mark Tinguely <tinguely@plains.nodak.edu> and Jim Lowe <james>
1995-08-28 17:03:18 +00:00
Bruce Evans
512644a44d Don't declare a nonexistent function.
Fix formatting of recent changes.
1995-08-26 20:46:43 +00:00
Bruce Evans
fadc51bdc6 Remove "memory" clobber statement from enable_intr(). Enabling interrupts
doesn't invalidate loaded variables.

Fix formatting of recent changes.
1995-08-26 20:45:59 +00:00
Peter Wemm
d3497bc8de add a new Debug mode.. "DBG_OPTIM" - for observing the L_RINT bypass 1995-08-22 00:42:07 +00:00
David Greenman
d0d1c65888 Killed some unused stuff inherited from Bill Jolitz. Note that since
this changes the size of the pcb struct, gdb will need to be rebuilt
or debugging won't work correctly.

Reviewed by:	Bruce Evans
1995-08-17 11:30:03 +00:00
Peter Wemm
bb65956af3 Next round of cleanups. Some more debugging hooks added, si_softc definition
moved to the driver proper, so that <machine/si.h> can be #included by user
programs without needing to include stuff from /sys/i386/isa..
Various (now) redundant features removed, eg: the locks on IXANY and HWFLOW
as these are now done with the "initial" and "lock" termios devices.
Note that it still (for reasons unknown) appears to be masking data to
7-bit with ppp - hence the cleanup to support the debugging via 'sicontrol'
1995-08-13 15:18:05 +00:00
Peter Wemm
b77990be3e Bring in my long-overdue version of the Specialix driver.
This was originally ported to BSDI by Andy Rutter <andy@acronym.co.uk>.
At the end of the day, this code has very little in common with Andy's
version, or the Specialix SYSV version.  Essentially it has been gradually
and almost completely rewritten, with LOTS of advice and inspiration from
Bruce Evans.  There are a couple of missing bits still, but they are minor.

The user-mode "sicontrol" program is in sad shape and will come in soon.
Transparent printing died a timely death.. Maybe later..

Jeremy Rolls @ Specialix (Development directory) has confirmed this is OK
to distribute, and Andy personally sent me his version that I started from.

Although this driver stood up to a nasty stress-test in this form, I am not
confident that there are no nasty bugs lurking.

People are welcome to try it, but dont go out and buy one just yet.. :-)
And *DONT* use it on a mission-critical machine... This is ALPHA QUALITY!
1995-08-09 13:13:47 +00:00
John Dyson
a4353b3b5e Fixed my usage of "asm" instead of "__asm" and "volatile" instead
of "__volatile".  Note also that the original mods that were submitted
by me were as a result of a discussion between various FreeBSD contributors.

Submitted by:	peter@haywire.dialix.com (Peter Wemm)
1995-08-09 02:39:32 +00:00
John Dyson
8966b85c8f Make the spl oriented inline functions less likely to allow
potentially volatile memory to be kept in registers during
the "call" (inline expansion.)  Do the same for pmap_update.
1995-08-08 04:50:52 +00:00
Jordan K. Hubbard
8bdcfa2a8b Merge in changes for VOXWARE 3.05
Submitted by:	Amancio Hasty and Jim Lowe
1995-07-28 22:30:53 +00:00
Bruce Evans
8089a0432e Fix bogus constraint "i" that only worked with -O. The cases where it
didn't work are somewhat bogusly optimized away before the constraint
is checked.  We still expect constants passed to inline functions to
remain constant, but if the compiler ever decides that they aren't
constant then it will just generate slightly slower code instead of
an error.
1995-07-25 21:28:47 +00:00
David Greenman
e9857eee2b Rewrote memory sizing code to generally deal with holes in extended memory.
This code change should allow certain Compaq machines with a 128K hole
at 16MB to work.
1995-07-19 06:37:12 +00:00
Poul-Henning Kamp
7a2dada545 Make the bootinfo structure visible from sysctl.
This can be used in libdisk to guess a better bios-geometry.
1995-07-16 10:33:38 +00:00
David Greenman
24a1cce34f NOTE: libkvm, w, ps, 'top', and any other utility which depends on struct
proc or any VM system structure will have to be rebuilt!!!

Much needed overhaul of the VM system. Included in this first round of
changes:

1) Improved pager interfaces: init, alloc, dealloc, getpages, putpages,
   haspage, and sync operations are supported. The haspage interface now
   provides information about clusterability. All pager routines now take
   struct vm_object's instead of "pagers".

2) Improved data structures. In the previous paradigm, there is constant
   confusion caused by pagers being both a data structure ("allocate a
   pager") and a collection of routines. The idea of a pager structure has
   escentially been eliminated. Objects now have types, and this type is
   used to index the appropriate pager. In most cases, items in the pager
   structure were duplicated in the object data structure and thus were
   unnecessary. In the few cases that remained, a un_pager structure union
   was created in the object to contain these items.

3) Because of the cleanup of #1 & #2, a lot of unnecessary layering can now
   be removed. For instance, vm_object_enter(), vm_object_lookup(),
   vm_object_remove(), and the associated object hash list were some of the
   things that were removed.

4) simple_lock's removed. Discussion with several people reveals that the
   SMP locking primitives used in the VM system aren't likely the mechanism
   that we'll be adopting. Even if it were, the locking that was in the code
   was very inadequate and would have to be mostly re-done anyway. The
   locking in a uni-processor kernel was a no-op but went a long way toward
   making the code difficult to read and debug.

5) Places that attempted to kludge-up the fact that we don't have kernel
   thread support have been fixed to reflect the reality that we are really
   dealing with processes, not threads. The VM system didn't have complete
   thread support, so the comments and mis-named routines were just wrong.
   We now use tsleep and wakeup directly in the lock routines, for instance.

6) Where appropriate, the pagers have been improved, especially in the
   pager_alloc routines. Most of the pager_allocs have been rewritten and
   are now faster and easier to maintain.

7) The pagedaemon pageout clustering algorithm has been rewritten and
   now tries harder to output an even number of pages before and after
   the requested page. This is sort of the reverse of the ideal pagein
   algorithm and should provide better overall performance.

8) Unnecessary (incorrect) casts to caddr_t in calls to tsleep & wakeup
   have been removed. Some other unnecessary casts have also been removed.

9) Some almost useless debugging code removed.

10) Terminology of shadow objects vs. backing objects straightened out.
    The fact that the vm_object data structure escentially had this
    backwards really confused things. The use of "shadow" and "backing
    object" throughout the code is now internally consistent and correct
    in the Mach terminology.

11) Several minor bug fixes, including one in the vm daemon that caused
    0 RSS objects to not get purged as intended.

12) A "default pager" has now been created which cleans up the transition
    of objects to the "swap" type. The previous checks throughout the code
    for swp->pg_data != NULL were really ugly. This change also provides
    the rudiments for future backing of "anonymous" memory by something
    other than the swap pager (via the vnode pager, for example), and it
    allows the decision about which of these pagers to use to be made
    dynamically (although will need some additional decision code to do
    this, of course).

13) (dyson) MAP_COPY has been deprecated and the corresponding "copy
    object" code has been removed. MAP_COPY was undocumented and non-
    standard. It was furthermore broken in several ways which caused its
    behavior to degrade to MAP_PRIVATE. Binaries that use MAP_COPY will
    continue to work correctly, but via the slightly different semantics
    of MAP_PRIVATE.

14) (dyson) Sharing maps have been removed. It's marginal usefulness in a
    threads design can be worked around in other ways. Both #12 and #13
    were done to simplify the code and improve readability and maintain-
    ability. (As were most all of these changes)

TODO:

1) Rewrite most of the vnode pager to use VOP_GETPAGES/PUTPAGES. Doing
   this will reduce the vnode pager to a mere fraction of its current size.

2) Rewrite vm_fault and the swap/vnode pagers to use the clustering
   information provided by the new haspage pager interface. This will
   substantially reduce the overhead by eliminating a large number of
   VOP_BMAP() calls. The VOP_BMAP() filesystem interface should be
   improved to provide both a "behind" and "ahead" indication of
   contiguousness.

3) Implement the extended features of pager_haspage in swap_pager_haspage().
   It currently just says 0 pages ahead/behind.

4) Re-implement the swap device (swstrategy) in a more elegant way, perhaps
   via a much more general mechanism that could also be used for disk
   striping of regular filesystems.

5) Do something to improve the architecture of vm_object_collapse(). The
   fact that it makes calls into the swap pager and knows too much about
   how the swap pager operates really bothers me. It also doesn't allow
   for collapsing of non-swap pager objects ("unnamed" objects backed by
   other pagers).
1995-07-13 08:48:48 +00:00
Bruce Evans
943c18018b Fix standards conformance bugs in <signal.h>:
include/signal.h:
There was massive namespace pollution from including <sys/types.h>.
POSIX functions were declared even when _ANSI_SOURCE is defined.

sys.sys/signal.h:
NSIG was declared even if _ANSI_SOURCE or _POSIX_SOURCE is defined.
sig_atomic_t wasn't declared if _POSIX_SOURCE is defined.
Declare a typedef for signal handling functions and use it to
unobfuscate declarations and to avoid half-baked function types
that cause unwanted compiler warnings at certain warning levels.
Fix confusing comment about SA_RESTART.

sys/i386/include/signal.h:
This has to be included to get the declaration of sig_atomic_t even
when _ANSI_SOURCE is defined, so be more careful about polluting
the ANSI namespace.

Uniformize idempotency ifdefs.
1995-06-28 02:14:13 +00:00
Bruce Evans
e9c2b07f51 Define macros _BSD_OFF_T_ and _BSD_PID_T_ suitable for use instead
of the typedefs off_t and pid_t when use of the latter would cause
namespace pollution.  These macros are used like _BSD_VA_LIST_ and
aren't #undef'ed when the corresponding typedef is declared.
off_t is very machine-dependent and should never have been decided
in <sys/types.h> (its declaration is compiler-dependent).  pid_t
isn't very machine-dependent, but this might change.  `long' is
a wasteful type for it if longs are longer than ints.

Move the definition of _BSD_VA_LIST_ away from the comment that
suggests that it is #undefed when va_list is declared.
1995-06-28 01:39:26 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
David Greenman
b64b660cd3 Made "NMBCLUSTERS" calculation dynamic and fixed bogus use of "NMBCLUSTERS"
in machdep.c (it should use the global nmbclusters). Moved the calculation
of nmbclusters into conf/param.c (same place where nmbclusters has always
been assigned), and made the calculation include an extra amount based
on "maxusers". NMBCLUSTERS can still be overrided in the kernel config
file as always, but this change will make that generally unnecessary. This
fixes the "bug" reports from people who have misconfigured kernels seeing
the network hang when the mbuf cluster pool runs out.

Reviewed by:	John Dyson
1995-05-25 07:41:28 +00:00
David Greenman
30fd0561cd Added apersand constraint to make sure that the source and destination
registers aren't combined.

Reviewed by:	Bruce Evans and David Greenman
Submitted by:	John Dyson
1995-05-14 22:25:11 +00:00
Bruce Evans
d81fba0cda Add variable `idelayed' and macros setdelayed() and schedsofttty()
to access it.  setdelayed() actually ORs the bits in `idelayed' into
`ipending' and clears `idelayed'.

Call setdelayed() every (normal) clock tick to convert delayed
interrupts into pending ones.

Drivers can set bits in `idelayed' at any time to schedule an interrupt
at the next clock tick.  This is more efficient than calling timeout().
Currently only software interrupts can be scheduled.
1995-05-11 07:44:40 +00:00
Bruce Evans
0ee893eb32 Add loadandclear(). It atomically loads a value from memory, clears the
value in memory and returns the original value.
1995-05-11 07:24:35 +00:00
Garrett Wollman
748e0b0acc Make networking domains drop-ins, through the magic of GNU ld. (Some day,
there may even be LKMs.)  Also, change the internal name of `unixdomain'
to `localdomain' since AF_LOCAL is now the preferred name of this family.
Declare netisr correctly and in the right place.
1995-05-11 00:13:26 +00:00
David Greenman
85eaa94715 Correct the definition for the (unused) cpu_setstack(). 1995-05-04 07:50:06 +00:00
Joerg Wunsch
fe696eb64c Update pcvt to 3.20 b24 1995-04-08 15:49:25 +00:00
Joerg Wunsch
175fa6182a Update pcvt to 3.20b23
Submitted by:	Hellmuth Michaelis <hm@altona.hamburg.com>
1995-04-01 17:16:40 +00:00
Bruce Evans
3aa12267a5 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) that I didn't notice when I fixed
"all" such warnings before.
1995-03-28 07:58:53 +00:00
David Greenman
1ae89ac36a Removed declaration of pmap_changebit()...it is no longer exported.
Submitted by:	John Dyson
1995-03-26 23:42:55 +00:00
Bruce Evans
b5e8ce9f12 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) and most of the warnings from
`gcc -Wnested-externs'.  Fix all the bugs found.  There were no serious
ones.
1995-03-16 18:17:34 +00:00
Ugen J.S. Antsilevich
6a8cccb088 Remove redundant IORW definition..
because of this definition never ioctl's for sound
devices worked..For me this resulted also in  loss of
snd1 device...
1995-03-08 18:43:49 +00:00
Joerg Wunsch
1076e16083 Update to beta3.20/b22 1995-03-05 22:25:44 +00:00
David Greenman
3b7517f887 Preserve reverse link integraty while doing the queue insertion. 1995-03-03 22:14:42 +00:00
Jean-Marc Zucconi
95344a43ed Put the joystick status in a struct {int x, y, b1, b2;} rather than in a
dummy array of 4 integers. Declare the struct in the header file and update
the man page.
1995-02-22 23:34:58 +00:00
Gary Palmer
43decb5384 Bruces fixes for large filesystems
Submitted by:	Bruce Evans <bde@zeta.org.au>
1995-02-19 10:36:17 +00:00
Poul-Henning Kamp
648c711bb4 This is the latest version of the APM stuff from HOSOKAWA, I have looked
briefly over it, and see some serious architectural issues in this stuff.

On the other hand, I doubt that we will have any solution to these issues
before 2.1, so we might as well leave this in.

Most of the stuff is bracketed by #ifdef's so it shouldn't matter too much
in the normal case.

Reviewed by:	phk
Submitted by:	HOSOKAWA, Tatsumi <hosokawa@mt.cs.keio.ac.jp>
1995-02-17 02:22:57 +00:00
Bruce Evans
ceb91b3e4a Fix syntax errors in #ifdefed out code. 1995-02-16 13:21:47 +00:00
Søren Schmidt
1e1e0b4463 First attempt to run linux binaries. This is only the changes needed to
the generic kernel. The actual emulator is a separate LKM. (not finished
yet, sorry).
Submitted by:	sos@freebsd.org & sef@kithrup.com
1995-02-14 19:23:22 +00:00
Poul-Henning Kamp
86ca01bcee Whoops! back out last commit partly. 1995-02-14 06:57:45 +00:00
Poul-Henning Kamp
b53d84607c YFfix. 1995-02-14 06:55:42 +00:00
Poul-Henning Kamp
f026fea644 susword -> systm.h 1995-02-14 06:51:31 +00:00
Jordan K. Hubbard
9e5c18f7b1 The following patches are for the sound drivers. These changes will
add a an ioctl call to set the transfer block size (SNDCTL_DSP_SETBLKSIZE)
and add the select system call to the drivers.  They also fix a problem with
the #EXCLUDE macros for the PAS-16 card.
Submitted by:	Jim Lowe <james@blatz.cs.uwm.edu>
1995-02-13 22:49:06 +00:00
Jordan K. Hubbard
bcbd38050e Rename the local variable used by various macros outside the user's
namespace.
Reported-By: "Philippe Charnier" <charnier@lirmm.fr>
1995-02-12 08:31:31 +00:00
Jordan K. Hubbard
f741ad121b The very minimum driver required to support a Video Spigot. See the
copyright notices in the code for information on where to go to pick
up additional useful bits.
Submitted by:   Jim Lowe <james@blatz.cs.uwm.edu>
1995-02-06 23:20:17 +00:00
Jordan K. Hubbard
37be911712 Add pcvt's header files.
Submitted by:	hm
1995-02-05 11:02:45 +00:00
Stefan Eßer
fabf3fb247 Moved "#include <pci/pcivar.h>" from "usr.sbin/lsdev/i386.c"
to "/sys/i386/include/devconf.h", where it really belongs.
1995-02-04 12:47:19 +00:00
Bruce Evans
ee6075a391 Don't define CLK_TCK here.
Uniformize idempotency ifdef.
1995-02-03 21:49:18 +00:00
Bruce Evans
915e66b767 Define _BSD_CLK_TCK_ and _BSD_CLOCKS_PER_SEC_ to support correct
definitions of CLK_TCK and CLOCKS_PER_SEC.
1995-02-03 21:23:46 +00:00
Jordan K. Hubbard
dcca65bed0 Since the pci directory has moved, this required updating. 1995-02-02 05:42:47 +00:00
Søren Schmidt
a926a37b0a Third round in syscons update.
Display update method changed, now allways write in memory buffer,
  then periodically update physical display.
Speed improvements (now > 5 times faster than the old syscons).
History now circular buffer, with changeable size.
History scroll by up/down line, up/down page, home and end.
Backtab proberly implemented.
Now space for 96 function keys, 63 allocated standard, default now
  SCO/SYSV compat again as in the old days.
New keyboard definition files ~share/syscons/keymaps/*
Misc fixes for old "hacks" that broke SCO/SYSV compat.
More that I forgot before writing this...
1995-01-28 22:18:05 +00:00
Andrey A. Chernov
735fed15b5 DOn't use hardcode values for L_FN & L_SCR 1995-01-26 10:32:55 +00:00
Andrey A. Chernov
2c24a153e0 Increase NUM_FKEYS to 65 1995-01-26 10:13:38 +00:00
Bruce Evans
b5d89ca8ad Load the kernel symbol table in the boot loader and not at compile time.
(Boot with the -D flag if you want symbols.)

Make it easier to extend `struct bootinfo' without losing either forwards
or backwards compatibility.

ddb_aout.c:
Get the symbol table from wherever the loader put it.
Nuke db_symtab[SYMTAB_SPACE].

boot.c:
Enable loading of symbols.  Align them on a page boundary.  Add printfs
about the symbol table sizes.
Pass the memory sizes to the kernel.
Fix initialization of `unit' (it got moved out of the loop).
Fix adding the bss size (it got moved inside an ifdef).
Initialize serial port when RB_SERIAL is toggled on.
Fix comments.
Clean up formatting of recently added code.

io.c:
Clean up formatting of recently added code.

netboot/main.c, machdep.c, wd.c:
Change names of bootinfo fields.

LINT:
Nuke SYMTAB_SPACE.
Fix comment about DODUMP.

Makefile.i386:
Nuke use of dbsym.
Exclude gcc symbols from kernel unless compiling with -g.
Remove unused macro.
Fix comments and formatting.

genassym.c:
Generate defines for some new bootinfo fields.  Change names of old ones.

locore.s:
Copy only the valid part of the `struct bootinfo' passed by the loader.
Reserve space for symbol table, if any.

machdep.c:
Check the memory sizes passed by the loader, if any.  Don't use them yet.

bootinfo.h:
Add a size field so that we can resolve some mismatches between the loader
bootinfo and the kernel boot info.  The version number is not so good for
this because of historical botches and because it's harder to maintain.
Add memory size and symbol table fields.  Change the names of everything.

Hacks to save a few bytes:

asm.S, boot.c, boot2.S:
Replace `ouraddr' by `(BOOTSEG << 4)'.

boot.c:
Don't statically initialize `loadflags' to 0.  Disable the "REDUNDANT"
code that skips the BIOS variables.  Eliminate `total'.  Combine some
more printfs.

boot.h, disk.c, io.c, table.c:
Move all statically initialzed data to table.c.

io.c:
Don't put the A20 gate bits in a variable.
1995-01-25 21:40:47 +00:00
Jean-Marc Zucconi
7e0284a390 ioctls for the joystick driver 1995-01-25 20:41:06 +00:00
Andrey A. Chernov
ea4a8be8c2 Fix stdarg.h for GNU C using builtin_next_arg 1995-01-24 16:22:52 +00:00
David Greenman
fff3cea1a9 Moved various pmap 'bit' test/set functions back into real functions; gcc
generates better code at the expense of more of it.

Submitted by:	John Dyson
1995-01-24 09:57:39 +00:00
David Greenman
fb1322e408 Decrease MCLBYTES from 4k back to 2k. It isn't likely that we'll be doing
page flipping anytime soon and 4k just wastes memory. Performance via the
looback interface will decrease slightly by this change. Idealy, we need
buffers that can have variable sizes, but this requires a rewrite of far
too much code at the moment.
1995-01-23 19:21:49 +00:00
Søren Schmidt
02fb646de1 Second round in syscons update:
Support for pseudo graphic mouse cursor (not complete yet)
Some cheap speed fixes.
More cleanups.
Call ourselves scxxxx finally.
1995-01-20 08:35:32 +00:00
Bruce Evans
20415301cd Fix security holes in sigreturn(), ptrace() and procfs. sigreturn()
attempted to check for insecure and fatal eflags and segment
selectors, but missed many cases and got the IOPL check back to
front.  The other syscalls didn't check at all.

sys_process.c, machdep.c:
Only allow PT_WRITE_U to write to the registers (ordinary and FP).

psl.h, locore.s, machdep.c:
Eliminate PSL_MBZ, PSL_MBO and PSL_USERCLR.  We are not supposed
to assume anything about the reserved bits.  Use PSL_USERCHANGE
and PSL_KERNEL instead.  Rename PSL_USERSET to PSL_USER.

exception.s:
Define a private label for use by doreti when returning to user
mode fails.

machdep.c:
In syscalls, allow changing only the eflags that can be changed on
486's in user mode (no longer attempt to allow benign IOPL changes;
allow changing the nasty PSL_NT; don't allow changing the i586
bits).

Don't attempt to check all the cases involving invalid selectors
and %eip's.  Just check for privilege violations and let the invalid
things cause a trap.

procfs_machdep.c:
Call the ptrace register functions to do all the work for reading
and writing ordinary registers and for single stepping.

trap.c:
Ignore traps caused by PSL_NT being set.  Previously, users could
cause a fatal trap in user mode by setting PSL_NT and executing an
iret, and a fatal trap in kernel mode by setting PSL_NT and making
a syscall.  PSL_NT was cleared too late and not in enough modes to
fix the problem.

Make all traps in user mode (except T_NMI) nonfatal.

Recover from traps caused by attempting to load invalid user
registers in doreti by restarting the traps so that they appear to
occur in user mode.
---

Fix bogons that I noticed while fixing the above:

psl.h:
Fix some comments.

Uniformize idempotency ifdef.

exception.s, machdep.c:
Remove rsvd[0-14].  rsvd0 hasn't been reserved since the 486 came
out.  Replace rsvd0 by `align'.  rsvd[0-11] used wrong (magic
non-unique) trap numbers.  Replace rsvd[1-14] by rsvd.

locore.s:
Enable alignment check flag on 486's and 586's.

machdep.c:
Use a better type for kstack[].

Use TFREGP() to find the registers.

Reformat ptrace functions from SEF to something closer to KNF.

procfs_machdep.c:
The wrong pointer to the registers got fixed as a side effect.

Implement reading and writing of FP registers.

/proc/*/*regs now work (only) for processes that are in memory.

Clean up comments.

trap.c, trap.h:
Remove unused trap types.
1995-01-14 13:20:26 +00:00
Bruce Evans
3117fbd98e Enable define of CR0_AM to prepare for implementing alignment checking.
Uniformize idempotency ifdef.
1995-01-14 10:44:55 +00:00
Bruce Evans
c277f99332 Declare a real `struct fpreg' to prepare for implementing reading and
writing of FP regs for procfs.

Uniformize idempotency ifdef.
1995-01-14 10:41:41 +00:00
Bruce Evans
1e1a3d012d Remove reference to impossible trap type T_KDBTRAP. We don't support
watchpoints.

Uniformize idempotency ifdef.
1995-01-14 10:34:52 +00:00
Søren Schmidt
6378775666 First round in syscons update. Several new features has been added:
No kernel config options anymore besides keyboard language layout.
Virtual consoles are now dynamically allocated, no NCONS anymore.
Software cursor blinking/nonblinking.
Visual bell for laptops (don't beep at meetings :-).
Cursor/bell default type setable via config "flags" instead of as defines.
Cursor/bell type setable via ioctl's.
New video modes 80x30 80x60 for some laptops, and those with multisync monitors.
Scroll-lock history (length currently fixed at 100 lines).
Lots of cleanups, some only commented out for now (will goaway soon).
Support for new features in vidcontrol/kbdcontrol.
Updated manpages.
1995-01-12 11:47:05 +00:00
David Greenman
0d94caffca These changes embody the support of the fully coherent merged VM buffer cache,
much higher filesystem I/O performance, and much better paging performance. It
represents the culmination of over 6 months of R&D.

The majority of the merged VM/cache work is by John Dyson.

The following highlights the most significant changes. Additionally, there are
(mostly minor) changes to the various filesystem modules (nfs, msdosfs, etc) to
support the new VM/buffer scheme.

vfs_bio.c:
Significant rewrite of most of vfs_bio to support the merged VM buffer cache
scheme.  The scheme is almost fully compatible with the old filesystem
interface.  Significant improvement in the number of opportunities for write
clustering.

vfs_cluster.c, vfs_subr.c
Upgrade and performance enhancements in vfs layer code to support merged
VM/buffer cache.  Fixup of vfs_cluster to eliminate the bogus pagemove stuff.

vm_object.c:
Yet more improvements in the collapse code.  Elimination of some windows that
can cause list corruption.

vm_pageout.c:
Fixed it, it really works better now.  Somehow in 2.0, some "enhancements"
broke the code.  This code has been reworked from the ground-up.

vm_fault.c, vm_page.c, pmap.c, vm_object.c
Support for small-block filesystems with merged VM/buffer cache scheme.

pmap.c vm_map.c
Dynamic kernel VM size, now we dont have to pre-allocate excessive numbers of
kernel PTs.

vm_glue.c
Much simpler and more effective swapping code.  No more gratuitous swapping.

proc.h
Fixed the problem that the p_lock flag was not being cleared on a fork.

swap_pager.c, vnode_pager.c
Removal of old vfs_bio cruft to support the past pseudo-coherency.  Now the
code doesn't need it anymore.

machdep.c
Changes to better support the parameter values for the merged VM/buffer cache
scheme.

machdep.c, kern_exec.c, vm_glue.c
Implemented a seperate submap for temporary exec string space and another one
to contain process upages. This eliminates all map fragmentation problems
that previously existed.

ffs_inode.c, ufs_inode.c, ufs_readwrite.c
Changes for merged VM/buffer cache.  Add "bypass" support for sneaking in on
busy buffers.

Submitted by:	John Dyson and David Greenman
1995-01-09 16:06:02 +00:00
Jordan K. Hubbard
2f6df2645b Gunther Schadow <gusw@fub46.zedat.fu-berlin.de>'s
driver for the Genius GS-4500 hand scanner.
Submitted by:	gusw@fub46.zedat.fu-berlin.de
1995-01-07 14:52:08 +00:00
David Greenman
b5ba45f6f3 Corrected the list of volatile registers for outsb, outsw, and outsl.
This bug caused my ethernet driver to break, among other things no doubt.
1995-01-04 20:42:25 +00:00
Bruce Evans
d5ebbddc5e Replace sv_ex_tw by padding (it is no longer used; the tag word in sv_env
is valid).

Expand comment about bogus padding for emulators.

Update prototpe for npxinit().
1995-01-03 03:57:46 +00:00
Bruce Evans
06ea59471c spl.h:
Don't calculate imask for splstatclock() every call.

Remove declaration of nonexistent variable `high_imask'.

Sort declarations of imasks and spl's.
1994-12-30 12:42:15 +00:00
David Greenman
d9b026fcbd Add two more page table pages to keep 64MB machines happy. 1994-12-18 03:11:46 +00:00
Bruce Evans
91290462f6 Disable CLKF_BASEPRI() again. I forgot to edit an unwanted change out of
the diffs for the previous commit.
1994-12-03 10:18:24 +00:00
Bruce Evans
b39b673d37 i386/exception.s,
Keep track of interrupt nesting level.  It is normally 0
	for syscalls and traps, but is fudged to 1 for their exit
	processing in case they metamorphose into an interrupt
	handler.

i386/genassym.c;
	Remove support for the obsolete pcb_iml and pcb_cmap2.

	Add support for pcb_inl.

i386/swtch.s:
	Fudge the interrupt nesting level across context switches and in
	the idle loop so that the work for preemptive context switches
	gets counted as interrupt time, the work for voluntary context
	switches gets counted mostly as system time (the part when
	curproc == 0 gets counted as interrupt time), and only truly idle
	time gets counted as idle time.

	Remove obsolete support (commented out and otherwise) for pcb_iml.

	Load curpcb just before curproc instead of just after so that
	curpcb is always valid if curproc is.  A few more changes like
	this may fix tracing through context switches.

	Remove obsolete function swtch_to_inactive().

include/cpu.h:
	Use the new interrupt nesting level variable to implement a
	non-fake CLF_INTR() so that accounting for the interrupt state
	works.

	You can use top, iostat or (best) an up to date systat to see
	interrupt overheads.  I see the expected huge interrupt overheads
	for ISA devices (on a 486DX/33, about 55% for an IDE drive
	transferring 1250K/sec and the same for a WD8013EBT network card
	transferring 1100K/sec).  The huge interrupt overheads for serial
	devices are unfortunately normally invisible.

include/pcb.h:
	Remove the obsolete pcb_iml and pcb_cmap2.  Replace them by
	padding to preserve binary compatibility.

	Use part of the new padding for pcb_inl.

isa/icu.s:
isa/vector.s:
	Keep track of interrupt nesting level.
1994-12-03 10:03:19 +00:00
Garrett Wollman
6014635361 Cronyx/Sigma sync/async serial driver with PPP support
from Serge Vakulenko
1994-12-02 23:23:01 +00:00
Poul-Henning Kamp
0a6a925d04 Declare "extern int bootverbose", so that device-drivers and others
easily can find it.
1994-11-26 09:27:58 +00:00
Poul-Henning Kamp
e0abbebf36 Declare the bootinfo structure in the kernel. 1994-11-18 05:26:52 +00:00
Poul-Henning Kamp
fbc5b3073e Add space for the bios-geometry in the bootinfo struct. 1994-11-18 05:02:43 +00:00
Bruce Evans
ff030ea17d Add prototype for Debugger(). 1994-11-15 14:55:25 +00:00
Bruce Evans
b0d1e6de04 Make gdt_segs[] public again for APM.
Make ldt[] public again and restore currentldt and _default_ldt for
USER_LDT.
1994-11-15 14:12:55 +00:00
Bruce Evans
004bedeb68 Rewrite almost everything.
Alphabetize.

Write all i/o functions in sleep so that we don't use anything from
NetBSD.

Restore the correct type of u_int for ports.  This saves a whole cycle
per i/o on 486's.

Change `inline' back to __inline to avoid compiler warnings with
-Wreally-all.

Don't implement bdb() unless BDE_DEBUGGER is defined.  Declare bdb_exists
outside the function to avoid hundreds of compiler warnings.

Let the compiler pick the register in asms if possible.

Implement ffs() using inline asm().  gcc provides a slightly different
one.  It was broken in gcc-2.4.5 but works now.  Declaring a correct
version inline ensures getting a correct version.  FreeBSD-1.1.5 has
an slow inline version but FreeBSD-2.0 has a library version (which
probably never gets used).

Do inb() and outb() without using %edx for constant ports below 0x100.

Remove casts to the same type in queue functions.

Declare prototypes for everything implemented i386/*.s and also for
everything that is normally implemented as an inline here (I don't
like the current complete dependency on gcc).  Ifdef out the prototypes
that are declared elsewhere.  THere should be a separate header to
declare things implemented in i386/*.s, but then it would be harder
to override declarations with inlines.

${UII}
1994-11-14 15:04:06 +00:00
Bruce Evans
040f100044 Remove 1.5+K of bloat for unused idt entries.
Partly support BDE_DEBUGGER.  Still broken by conflict with APM.  Does
nothing if BDE_DEBUGGER is not defined.

Clean up prototypes and data declarations.  Declare most of the segment
functions that are implemented in support.s.  Make data private in
machdep.c if possible.

Parenthesize expressions in macros properly!

${Uniformize idempotency ifdef}.
1994-11-14 14:18:15 +00:00
Bruce Evans
e00dc32993 Remove extra idempotency ifdef and uniformize the other one.
Comment about support for 4 different spellings of KERNEL.
1994-11-14 14:13:13 +00:00
Bruce Evans
3bbb00e1a3 Declare inline functions as __inline and with new-style parameter lists
to avoid compiler warnings.

Clean up prototypes: alphabetize; don't use redundant `extern' or
meaningless `extern inline'.

Uniformize idempotency ifdef.
1994-11-14 14:12:24 +00:00
Bruce Evans
86a8bb8a33 Don't declare DELAY() here. Callers should include <machine/clock.h>. 1994-11-09 00:51:38 +00:00
Bruce Evans
a1ca704e29 Declare all functions exported by the npx driver.
Uniformize idempotency ifdefs.
1994-11-05 22:59:09 +00:00
Bruce Evans
65af765646 Declare the full uglyness of the interfaces to the clock driver (except
things declared in machine-independent files).
1994-11-05 22:51:17 +00:00
Bruce Evans
c342b9faa3 Disable the direct call from hardclock() to softclock(). Support
for it is incomplete and buggy.  There is no problem unless Xintr0()
is reentered or should be reentered, but high clock interrupt
frequencies for pcaudio cause Xintr0() to be reentered (or clock
ticks to be lost when Xintr0() should have been reentered but
wasn't), and we lose little by delaying the call to softclock().

Move declarations related to the clock driver to clock.h.

Move declarations related to the npx driver to npx.h.

Clean up the remaining declarations.
1994-11-05 22:44:34 +00:00
Jordan K. Hubbard
fb59d6ab65 __386BSD__ -> __FreeBSD__
I know that many of these entries are bogus and need to be revisited,
but let's get the tree working again for now and then do a pass through
looking at all the __FreeBSD__ entries, shall we?
1994-11-04 02:14:13 +00:00
Stefan Eßer
1b851d5210 Submitted by: Wolfgang Stanglmeier <wolf@dentaro.GUN.de>
Modifications required for PCI support.
1994-11-02 23:44:11 +00:00
Joerg Wunsch
c20c8046d5 Included the command definition for FD_DEBUG.
This way, it's possible for a user to activate/deactivate floppy driver
debugging, even if (s)he doesn't like the overhead of running DDB.
Since some ppl tend to have problems with their drives, this might be
valuable for investigations.
1994-10-30 19:17:39 +00:00
Garrett Wollman
2f86936a07 Finished device configuration database work for all ISA devices (except `ze')
and all SCSI devices (except that it's not done quite the way I want).  New
information added includes:

-	A text description of the device
-	A ``state''---unknown, unconfigured, idle, or busy
-	A generic parent device (with support in the m.i. code)
-	An interrupt mask type field (which will hopefully go away) so that
.	  ``doconfig'' can be written

This requires a new version of the `lsdev' program as well (next commit).
1994-10-23 21:28:03 +00:00
Bruce Evans
0bf495e561 Fix the test for the code segment being the usual one. Unusual code
segments can still cause panics.  Their pc is converted to 0 and 0
is only checked for in one place before use.
1994-10-19 21:13:51 +00:00
Garrett Wollman
f1d8109335 Add support for devconf to a large number of device drivers, and do
the right thing in dev_goawayall() when kdc_goaway is null.
1994-10-19 01:59:11 +00:00
Garrett Wollman
02694b627b Move some declarations to more appropriate header files. 1994-10-19 00:06:24 +00:00
Andrey A. Chernov
37b28ca421 Remove CPU_COLORDISP, GIO_COLOR now exists 1994-10-18 03:42:18 +00:00
Garrett Wollman
0dcb1dd2e8 Add new definitions for lsdev. 1994-10-17 23:33:52 +00:00
Søren Schmidt
be92194467 Added more SCO compat ioctl's. 1994-10-17 22:12:06 +00:00
Garrett Wollman
6b4375e296 Machine-dependent parts of device configuration table. 1994-10-16 03:50:01 +00:00
Andrey A. Chernov
9d40918f0f CPU_COLORDISP sysctl added for console display type 1994-10-15 21:18:11 +00:00
Poul-Henning Kamp
a12dee4de7 Cosmetics. Added a prototype. 1994-10-10 01:06:48 +00:00
Poul-Henning Kamp
50a1a05445 Added prototypes. 1994-10-08 22:21:34 +00:00
Rodney W. Grimes
76b993fbbe 1. bootinfo.h defines the structure passed in to the kernel by the
new boot code.
1994-10-06 09:25:25 +00:00
Andrey A. Chernov
f80d8a2e88 CPU_DISRTCSET added to disable resettodr(), needed in adjkerntz -i,
per Bruce suggestion
1994-10-04 18:25:51 +00:00
Poul-Henning Kamp
45a0b89468 Avoid ddb getting a panic if the code-segment isn't the usual one... 1994-10-02 19:36:30 +00:00
Poul-Henning Kamp
abd358cd49 apm_bios.h: removed the equiv-stuff. Not needed now that the kernel module
works correctly.

clock.h & reg.h: prototypes.
1994-10-02 17:31:29 +00:00
David Greenman
fae772f7b2 Added Cortex-I Frame Grabber by Paul S. LaFollette, Jr.
Submitted by:	Paul S. LaFollette, Jr.
1994-10-01 17:59:42 +00:00
David Greenman
5185ed0d3a Added $Id$ 1994-10-01 05:13:37 +00:00
David Greenman
8321fda1d9 Woops, missed these two files; part of HOSOKAWA Tatsumi's APM support. 1994-10-01 05:05:10 +00:00
David Greenman
22414e535a Laptop Advanced Power Management support by HOSOKAWA Tatsumi.
Submitted by:	HOSOKAWA Tatsumi
1994-10-01 02:56:21 +00:00
Steven Wallace
c64aa890c4 Use Voxware's new 2.90 soundcard.h.
NOTE:  2.9 is backwards compatable with programs compiled with older
soundcard.h, but new programs compiled with 2.9 will not work on pre-2.9
sound drivers.
1994-10-01 02:32:23 +00:00
Søren Schmidt
a2a0e15a82 Changed header sligthly. 1994-09-29 08:31:39 +00:00
David Greenman
4b301dcfc5 First round of changes to get the sound code working in 2.0. 1994-09-27 17:58:30 +00:00
David Greenman
7bfaa9cdaf Inlined ins/outs functions.
Obtained from:	NetBSD
1994-09-25 21:31:55 +00:00
David Greenman
d5c97aea74 Undo last change: the ins/outs functions DO NOT return a pointer! 1994-09-25 20:03:41 +00:00
Poul-Henning Kamp
bb56ec4a05 While in the real world, I had a bad case of being swapped out for a lot of
cycles.  While waiting there I added a lot of the extra ()'s I have, (I have
never used LISP to any extent).  So I compiled the kernel with -Wall and
shut up a lot of "suggest you add ()'s", removed a bunch of unused var's
and added a couple of declarations here and there.  Having a lap-top is
highly recommended.  My kernel still runs, yell at me if you kernel breaks.
1994-09-25 19:34:02 +00:00
Joerg Wunsch
011b09f93f Copied over the transfer speed definitions from sys/i386/isa/fdreg.h.
This is needed for having the fdformat program no longer searching
non-public include paths.
1994-09-25 18:41:21 +00:00
David Greenman
bc6d744470 Shuffled macros and definitions around to facilitate architecture
independance.
1994-09-24 21:37:01 +00:00
David Greenman
a6cd0a2477 Increased SHMMAXPGS from 512 to 1024 now that there is plenty of kernel
virtual memory.
1994-09-23 07:00:12 +00:00
Bruce Evans
8793135f2d Don't provide bogus source operands in some asms. This probably shouldn't
matter, but similar bogusness in npx.c causes compiling without -O to fail.

Use __volatile in all asms.

Parenthesize macro args.

Change the names of the macros to avoid namespace pollution.

Remove unnecessary "#ifdef __i386__".

Sort #defines.

Add comments.
1994-09-20 22:26:37 +00:00
Bruce Evans
2b3d0249bd Remove the alias splnone() for spl0(). It was used only once. 1994-09-20 05:07:32 +00:00
Andrey A. Chernov
e79033e4cf resettodr() now exists, enable it 1994-09-20 00:32:40 +00:00
Bruce Evans
6052572ac4 Replace unsigned' by u_int' so that it is not necessary to include
<sys/types.h> before including this header.  This header is now
idempotent.

Uniformize idempotency #ifdef.
1994-09-18 22:05:22 +00:00
Bruce Evans
e4b7e53da8 Clean up #includes. <machine/spl.h> has to be included by almost everything
in case an spl inline is used, so this is not the place to include it.

Uniformize idempotency #ifdef.
1994-09-18 21:37:56 +00:00
Garrett Wollman
3f31c649d1 Redo Kernel NTP PLL support, kernel side.
This code is mostly taken from the 1.1 port (which was in turn taken from
Dave Mills's kern.tar.Z example).  A few significant differences:

1) ntp_gettime() is now a MIB variable rather than a system call.  A few
fiddles are done in libc to make it behave the same.

2) mono_time does not participate in the PLL adjustments.

3) A new interface has been defined (in <machine/clock.h>) for doing
possibly machine-dependent things around the time of the clock update.
This is used in Pentium kernels to disable interrupts, set `time', and
reset the CPU cycle counter as quickly as possible to avoid jitter in
microtime().  Measurements show an apparent resolution of a bit more than
8.14usec, which is reasonable given system-call overhead.
1994-09-18 20:40:01 +00:00
David Greenman
3a2f7427fe Updated driver to the 1.1.5 version:
date: 1994/05/22 12:35:38;  author: joerg;  state: Exp;  lines: +6 -6
First round of floppy changes. Try making `fd' more robust.

New features:
  .  ioctl command for setting the drive type (density etc.); restricted
     to the super-user
  .  ioctl for getting/seting `drive options'; currently only option
     is FDOPT_NORETRY: inhibit the usual retries; used when verifying
     a newly formatted track

Fixes:
  .  function prototypes
  .  made all internal functions `static'
  .  cleaned up & corrected .h files
  .  restructured, to make the chaotic function sequence more rational
  .  compiled with -Wall, and cleared all warnings
  .  introduced a mirror for the (write-only) `digital output register',
     to avoid the current kludge
  .  device probing completed by seeking/recalibrating, and looking
     for track 0 being found
  .  holding the controller down in reset state while it is idle (and
     thus saving allot of headaches)
  .  make requests fail that are not a multiple of the (physical)
     sector size
  .  removed the fixed physical sector size (512 bytes), allowing for any
     size the controller could handle (128/256/512/1024 bytes)
  .  replaced some silly messages
  .  fixed the TRACE* macro usage, debugging reports should be complete
     now again (debugging output is HUGE! though)
  .  removed fd_timeout for SEEK command; seeks are always reported by
     the controller to succeed, since the `success' only refers to the
     controller's idea of success - there is no hardware line to tell about
     the seek end (other than the `track 0' line)
  .  catch SENSEI's that report about a `terminated due to READY changed'
     status - could happen after a controller reset
  .  converted ``hz / <something>'' divide operations to divisors that are
     powers of two, so gcc can optimize them into shifts
  .  write/format operations are checked against a write-protected medium
     now *prior* starting the operation
  .  error reports of `invalid command' and `wrong cylinder' will cause
     shortcuts in the retrier() now
  .  fixed a bug in the retrier() causing bogus block numbers to be reported
  .  fdformat() does care for errors now

Known Bugs:
  .  no attempts have been made (yet) to improve the performance
  .  sometimes, bogus ``seek/recalib failed'' messages are logged; this
     is still a bug in the driver, but it's not harmful since it's
     usually caught by the retrier()

Reviewed by:
Submitted by:
Obtained from:
1994-09-17 16:56:10 +00:00
David Greenman
df9ab3049d Removed inclusion of pio.h and cpufunc.h (cpufunc.h is included from
systm.h). Merged functionality of pio.h into cpufunc.h. Cleaned up some
related code.
1994-09-16 13:33:56 +00:00
Jordan K. Hubbard
f6e8d525a8 Deal with outw being defined - the declaration clashes. 1994-09-16 11:22:33 +00:00
Andrey A. Chernov
dd067f0809 CPU_ADJKERNTZ added for resettodtr() 1994-09-16 01:05:24 +00:00
Paul Richards
e69c40d865 Include pio.h so that all those drivers that only include cpufunc.h
get the faster io macros/inline code rather than call the routines
in support.s

This whole area needs some going over.....
1994-09-15 17:55:47 +00:00
Paul Richards
8db02de884 Added MCOUNT_ENTER and MCOUNT_EXIT macros to profile.h
Removed inb function since it's more correctly in pio.h

Copied write_eflags and read_eflags over from npx.c

(Some changes to the macros suggested by Bruce were not made at this
time since his suggestions probably apply to all the macros and
these inlined/macro definitions need a lot of cleaning up at some
point in the future.)

Reviewed by:	Bruce
1994-09-15 16:27:14 +00:00
Søren Schmidt
4f683116b4 Added support for many more videomodes, including graphic modes up til
320x200 256col VGA. This is nessesary for the iBCS stuff to work right.
(And we get the benefit of more video modes). Uses the videocard BIOS
to optain mode tables.
Added a "green" saver, switches off the syncs for "green" monitors.

Reviewed by:
Submitted by:
Obtained from:
1994-09-15 07:26:40 +00:00
David Greenman
cde7257454 Eliminated a whole pile of ancient (we're taking 4.3BSD) VM system
related #define constants. Corrected incorrect VM_MAX_KERNEL_ADDRESS.

Reviewed by:	John Dyson
1994-09-12 11:38:31 +00:00
Geoff Rehmet
20dcc37daa Change "asm" to "__asm" - makes it possible to compile code with
"-ansi" compiler switch set.
1994-09-10 20:03:14 +00:00
Doug Rabson
010a751e0a Added the psm driver from 1.1.5.
Submitted by:	dfr
1994-09-09 11:27:50 +00:00
Bruce Evans
8aca2c0a98 Quote the first arg to _IO(). Not quoting it didn't matter because
this file is never used.

Uniformize use of idempotence identifier.
1994-09-08 12:26:07 +00:00
Bruce Evans
ab9678ac9d Get all the definitions from DEFS.h and not directly from asmacros.h
if KERNEL is not defined.  lib/msun/i387/*.S include asmacros.h to
get the definitions of ENTRY(), etc.  This is bogus since asmacros.h
is only supposed to give definitions suitable for the kernel.  The
current definitions for the kernel almost worked but are missing
the ".type" declarations.  This caused the linker to print warnings
about doubtful relocations for almost anything linked to libm[sun].

Uniformize name and use of idempotence identifier.
1994-09-08 12:25:18 +00:00
Bruce Evans
fe7bb84c74 Remove <machine/eflags.h> and all dependencies on it. eflags.h is just
the Mach/i386 version of the BSD/vax(?) <machine/psl.h>.  The Mach
version has slightly better names for many macros but is now out of
date and little used.  It was originally used even less (for spelling
PSL_T as EFL_TF in <machine/db_machdep.h>).
1994-09-08 11:49:04 +00:00
David Greenman
654f13335e Improved some comments. 1994-09-04 23:10:27 +00:00
Paul Traina
c784172318 Detect if we're running on a Cyrix 486DLC and enable automatic cache
negation whenever we access memory between 640k and 1M.

Original code from NetBSD 1.0-BETA.  The exact origins are unclear but
Theo de Raadt, Charles, and Michael V. may have contributed to it.

Submitted by:	pst
1994-09-04 19:59:24 +00:00
David Greenman
2c7a40c7ca Removed all vestiges of tlbflush(). Replaced them with calls to pmap_update().
Made pmap_update an inline assembly function.
1994-09-02 04:12:26 +00:00
David Greenman
431be400a7 Got rid of some old, unused junk. 1994-09-01 03:16:40 +00:00
David Greenman
329b62ac1c Corrected some comments regarding ptes/pdes. 1994-08-23 16:27:15 +00:00
Paul Richards
d184e84f7e Re-enabled inlining of inb.
Changed u_int_inb to just inb and deleted define.

The code generated is identical to that generated with the cast so
the problem was obviously fixed at some point after gcc 1.4

Reviewed by:
Submitted by:
1994-08-23 13:41:37 +00:00
Paul Richards
bffa0592e2 I've disabled this piece of code since it's what's
hosing syscons. Doesn anyone know anything about this
or can we just delete it now?

/*
 * This roundabout method of returning a u_char helps stop gcc-1.40 from
 * generating unnecessary movzbl's.
 */
#ifdef disable_for_gcc-2_6_0
#define inb(port)       ((u_char) u_int_inb(port))
#endif

static inline u_int
u_int_inb(u_int port)
{
        u_char  data;
        /*
         * We use %%dx and not %1 here because i/o is done at %dx and
not at
         * %edx, while gcc-2.2.2 generates inferior code (movw instead
of movl)
         * if we tell it to load (u_short) port.
         */
        __asm __volatile("inb %%dx,%0" : "=a" (data) : "d" (port));
        return data;
}

Reviewed by:
Submitted by:
1994-08-23 11:57:19 +00:00
Paul Richards
836dc83b6a Made idempotent.
Reviewed by:
Submitted by:
1994-08-21 04:55:31 +00:00
Jordan K. Hubbard
6605d9f3db 1. Make this idempotent.
2. Hack.

	Hack is to define RCSID() to null macro so that new msun stuff
	will compile.  This does NOT belong here, and I DON'T want it to
	stay, I just need to put this here for now to enable msun and we need
	to talk about what our RCSID story is supposed to be.  We talked about
	supporting RCSID() one day, and everyone seemed to like the idea
	reasonably well of making it a macro you could just no-op this way,
	but we never did anything.  Now I see that JTCs code has it and I'm
	loath to remove it or do anything until we've discussed it some more.

	Well, so how about it?  What's our story vis-a-vis RCSID() going to
	be?

Submitted by:	jkh
1994-08-19 11:20:11 +00:00
Garrett Wollman
f23b4c91c4 Fix up some sloppy coding practices:
- Delete redundant declarations.
- Add -Wredundant-declarations to Makefile.i386 so they don't come back.
- Delete sloppy COMMON-style declarations of uninitialized data in
  header files.
- Add a few prototypes.
- Clean up warnings resulting from the above.

NB: ioconf.c will still generate a redundant-declaration warning, which
is unavoidable unless somebody volunteers to make `config' smarter.
1994-08-18 22:36:09 +00:00
Søren Schmidt
8c7004b6d4 Updated to latest version from 1.1.5.1+
Reviewed by:
Submitted by:
1994-08-17 08:51:10 +00:00
Garrett Wollman
8ea838500f Enable use of the RTC chip for the statistical clock. While this does
not provide the full accuracy of a randomized statistical clock, it does
provide greater accuracy than the previous method, while not significantly
increasing overhead.  It also provides profiling support at 1024 Hz.

You must re-compile config before making a new kernel, or you will end
up with unresolved symbols.

Reviewed uy:	Bruce evans said it worked for him.
1994-08-15 03:15:20 +00:00
Andreas Schulz
021d975d03 Submitted by: Bruce Evans
Delete the ifdef GPL_EMULATE case here and made the padding work for
both types of emulators so that there is no longer a need to compile
ps and friends new if you are using the GPL math emulator instead the
normal one.
1994-08-14 23:32:45 +00:00
Garrett Wollman
f540b1065a Change all #includes to follow the current Berkeley style. Some of these
``changes'' are actually not changes at all, but CVS sometimes has trouble
telling the difference.

This also includes support for second-directory compiles.  This is not
quite complete yet, as `config' doesn't yet do the right thing.  You can
still make it work trivially, however, by doing the following:

rm /sys/compile
mkdir /usr/obj/sys/compile
ln -s M-. /sys/compile
cd /sys/i386/conf
config MYKERNEL
cd ../../compile/MYKERNEL
ln -s /sys @
rm machine
ln -s @/i386/include machine
make depend
make
1994-08-13 03:50:34 +00:00
Jordan K. Hubbard
f9f0c18d31 Change outb() as per Bruce's instructions so that it doesn't explicitly
try to pass its argument in the ax register.
Reviewed by:
Submitted by:
1994-08-11 02:26:08 +00:00
Garrett Wollman
29c0a86011 Add back in CPU detection copde from 1.1.5. As an added bonus, the
hw.model MIB variable is now declared correctly.
1994-08-10 03:51:18 +00:00
Jordan K. Hubbard
52cd438439 Merge in the necessary bits from 1.1.5.1 to make exec.h and reloc.h
happy campers again (e.g. match our own exec format).  This should
make ld happy.
Submitted by:	jkh
1994-08-09 14:39:57 +00:00
Garrett Wollman
f5c789f5a9 Delete redundant #ifdef __i386__, be consistent about idempotency
protection.

Submitted by:	Bruce Evans
1994-08-05 14:36:04 +00:00
David Greenman
ee06dc6013 Inlined insque and remque. 1994-08-04 19:46:57 +00:00
Garrett Wollman
50f44fa07d Move ieeefp.h over, and put it in the correct subdirectory this time.
Submitted by:	Andrew Moore
1994-08-04 19:16:37 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
David Greenman
3c256f5395 trap.c:
Vastly improved trap.c from me. This rewritten version has a variety of
features, amoung them: higher performance and much higher code quality.

support.s, cpufunc.h:
No longer use gs override to enforce range limits - compare directly
against VM_MAXUSER_ADDRESS instead. The old way caused problems in
preserving the gs selector...and this method is just as fast or faster.
1994-06-06 14:54:41 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
Rodney W. Grimes
6cda32c071 BSD 4.4 Lite Kernel Sources 1994-05-25 01:34:38 +00:00
Søren Schmidt
ee5676a0ae Added prober Id string 1994-05-20 12:22:40 +00:00
Gary Clark II
1099e6c189 Deleted on ifdef dontdef
Added ifdef for GPL_MATH_EMULATE so we get the extra padding that is needed
in the save87 struct.
1994-04-29 21:44:23 +00:00
Andrey A. Chernov
db2fd867a3 Sound driver updated to version 2.5 1994-04-23 02:03:17 +00:00
Søren Schmidt
d1e72cb121 New file for pcaudio device driver 1994-04-21 14:12:28 +00:00
Andrey A. Chernov
758ba6e17a Fix arguments of CONS_GETINFO 1994-04-07 23:23:01 +00:00
Geoff Rehmet
ee5ae27f05 Changes to lpt driver:
- ansi prototypes in lpt.c
- a bit of tidying in lpt.c
- ioctl in lpt.c for switching between polling and using interrupts
- added lpt.h - needed for ioctl to allow switching between polling
        and interrupt-driven modes.
1994-04-06 16:42:33 +00:00
Garrett Wollman
6ebe34f113 First pass at adding locale support. This code only deals with the LC_CTYPE
class of locale data, but could be extended to handle other locale
classes, as well as message catalogues and other non-locale i18n
support.

I have left the old _ctype_ array in place, and moved the ctype.h
header to octype.h, so that existing shared binaries will still be
able to find and use it as they require.

See /usr/src/share/locale for information on how to create new locale
data files (eventually this procedure will be improved).  I'd like to
have a family of locale files for various countries, languages, and
character sets, so please contribute some.

This code was originally written by Paul Borman and contributed to
4.4; I did the integration, and have somewhat tested it.  crt0.c
probably ought to call setlocale() if it doesn't already, but I'd like
for people to create some locale files and try things manually first
before I make every program do this.
1994-04-04 21:11:12 +00:00
David Greenman
d230622648 New interrupt code from Bruce Evans. In additional to Bruce's attached
list of changes, I've made the following additional changes:

1) i386/include/ipl.h renamed to spl.h as the name conflicts with the
   file of the same name in i386/isa/ipl.h.
2) changed all use of *mask (i.e. netmask, biomask, ttymask, etc) to
   *_imask (net_imask, etc).
3) changed vestige of splnet use in if_is to splimp.
4) got rid of "impmask" completely (Bruce had gotten rid of netmask),
   and are now using net_imask instead.
5) dozens of minor cruft to glue in Bruce's changes.

   These require changes I made to config(8) as well, and thus it must
be rebuilt.

-DG

from Bruce Evans:

sio:
	o No diff is supplied.  Remove the define of setsofttty().  I hope
	  that is enough.

*.s:
	o i386/isa/debug.h no longer exists.  The event counters became too
	  much trouble to maintain.  All function call entry and exception
	  entry counters can be recovered by using profiling kernel (the new
	  profiling supports all entry points; however, it is too slow to
	  leave enabled all the time; it also).  Only BDBTRAP() from debug.h
	  is now used.  That is moved to exception.s.  It might be worth
	  preserving SHOW_BITS() and calling it from _mcount() (if enabled).
	o T_ASTFLT is now only set just before calling trap().
	o All exception handlers set SWI_AST_MASK in cpl as soon as possible
	  after entry and arrange for _doreti to restore it atomically with
	  exiting.  It is not possible to set it atomically with entering
	  the kernel, so it must be checked against the user mode bits in
	  the trap frame before committing to using it.  There is no place
	  to store the old value of cpl for syscalls or traps, so there are
	  some complications restoring it.

Profiling stuff (mostly in *.s):
	o Changes to kern/subr_mcount.c, gcc and gprof are not supplied yet.
	o All interesting labels `foo' are renamed `_foo' and all
	  uninteresting labels `_bar' are renamed `bar'.  A small change
	  to gprof allows ignoring labels not starting with underscores.
	o MCOUNT_LABEL() is to provide names for counters for times spent
	  in exception handlers.
	o FAKE_MCOUNT() is a version of MCOUNT() suitable for exception
	  handlers.  Its arg is the pc where the exception occurred.  The
	  new mcount() pretends that this was a call from that pc to a
	  suitable MCOUNT_LABEL().
	o MEXITCOUNT is to turn off any timer started by MCOUNT().

/usr/src/sys/i386/i386/exception.s:
	o The non-BDB BPTTRAP() macros were doing a sti even when interrupts
	  were disabled when the trap occurred.  The sti (fixed) sti is
	  actually a no-op unless you have my changes to machdep.c that make
	  the debugger trap gates interrupt gates, but fixing that would
	  make the ifdefs messier.  ddb seems to be unharmed by both
	  interrupts always disabled and always enabled (I had the branch in
	  the fix back to front for some time :-().
	o There is no known pushal bug.
	o tf_err can be left as garbage for syscalls.

/usr/src/sys/i386/i386/locore.s:
	o Fix and update BDE_DEBUGGER support.
	o ENTRY(btext) before initialization was dangerous.
	o Warm boot shot was longer than intended.

/usr/src/sys/i386/i386/machdep.c:
	o DON'T APPLY ALL OF THIS DIFF.  It's what I'm using, but may require
	  other changes.
	  Use the following:
		o Remove aston() and setsoftclock().
	  Maybe use the following:
		o No netisr.h.
		o Spelling fix.
		o Delay to read the Rebooting message.
		o Fix for vm system unmapping a reduced area of memory
		  after bounds_check_with_label() reduces the size of
		  a physical i/o for a partition boundary.  A similar
		  fix is required in kern_physio.c.
		o Correct use of __CONCAT.  It never worked here for non-
		  ANSI cpp's.  Is it time to drop support for non-ANSI?
		o gdt_segs init.  0xffffffffUL is bogus because ssd_limit
		  is not 32 bits.  The replacement may have the same
		  value :-), but is more natural.
		o physmem was one page too low.  Confusing variable names.
	  Don't use the following:
		o Better numbers of buffers.  Each 8K page requires up to
		  16 buffer headers.  On my system, this results in 5576
		  buffers containing [up to] 2854912 bytes of memory.
		  The usual allocation of about 384 buffers only holds
		  192K of disk if you use it on an fs with a block size
		  of 512.
		o gdt changes for bdb.
		o *TGT -> *IDT changes for bdb.
		o #ifdefed changes for bdb.

/usr/src/sys/i386/i386/microtime.s:
	o Use the correct asm macros.  I think asm.h was copied from Mach
	  just for microtime and isn't used now.  It certainly doesn't
	  belong in <sys>.  Various macros are also duplicated in
	  sys/i386/boot.h and libc/i386/*.h.
	o Don't switch to and from the IRR; it is guaranteed to be selected
	  (default after ICU init and explicitly selected in isa.c too, and
	  never changed until the old microtime clobbered it).

/usr/src/sys/i386/i386/support.s:
	o Non-essential changes (none related to spls or profiling).
	o Removed slow loads of %gs again.  The LDT support may require
	  not relying on %gs, but loading it is not the way to fix it!
	  Some places (copyin ...) forgot to load it.  Loading it clobbers
	  the user %gs.  trap() still loads it after certain types of
	  faults so that fuword() etc can rely on it without loading it
	  explicitly.  Exception handlers don't restore it.  If we want
	  to preserve the user %gs, then the fastest method is to not
	  touch it except for context switches.  Comparing with
	  VM_MAXUSER_ADDRESS and branching takes only 2 or 4 cycles on
	  a 486, while loading %gs takes 9 cycles and using it takes
	  another.
	o Fixed a signed branch to unsigned.

/usr/src/sys/i386/i386/swtch.s:
	o Move spl0() outside of idle loop.
	o Remove cli/sti from idle loop.  sw1 does a cli, and in the
	  unlikely event of an interrupt occurring and whichqs becoming
	  zero, sw1 will just jump back to _idle.
	o There's no spl0() function in asm any more, so use splz().
	o swtch() doesn't need to be superaligned, at least with the
	  new mcounting.
	o Fixed a signed branch to unsigned.
	o Removed astoff().

/usr/src/sys/i386/i386/trap.c:
	o The decentralized extern decls were inconsistent, of course.
	o Fixed typo MATH_EMULTATE in comments. */
	o Removed unused variables.
	o Old netmask is now impmask; print it instead.  Perhaps we
	  should print some of the new masks.
	o BTW, trap() should not print anything for normal debugger
	  traps.

/usr/src/sys/i386/include/asmacros.h:
	o DON'T APPLY ALL OF THIS DIFF.  Just use some of the null macros
	  as necessary.

/usr/src/sys/i386/include/cpu.h:
	o CLKF_BASEPRI() changes since cpl == SWI_AST_MASK is now normal
	  while the kernel is running.
	o Don't use var++ to set boolean variables.  It fails after a mere
	  4G times :-) and is slower than storing a constant on [3-4]86s.

/usr/src/sys/i386/include/cpufunc.h:
	o DON'T APPLY ALL OF THIS DIFF.  You need mainly the include of
	  <machine/ipl.h>.  Unfortunately, <machine/ipl.h> is needed by
	  almost everything for the inlines.

/usr/src/sys/i386/include/ipl.h:
	o New file.  Defines spl inlines and SWI macros and declares most
	  variables related to hard and soft interrupt masks.

/usr/src/sys/i386/isa/icu.h:
	o Moved definitions to <machine/ipl.h>

/usr/src/sys/i386/isa/icu.s:
	o Software interrupts (SWIs) and delayed hardware interrupts (HWIs)
	  are now handled uniformally, and dispatching them from splx() is
	  more like dispatching them from _doreti.  The dispatcher is
	  essentially *(handler[ffs(ipending & ~cpl)]().
	o More care (not quite enough) is taken to avoid unbounded nesting
	  of interrupts.
	o The interface to softclock() is changed so that a trap frame is
	  not required.
	o Fast interrupt handlers are now handled more uniformally.
	  Configuration is still too early (new handlers would require
	  bits in <machine/ipl.h> and functions to vector.s).
	o splnnn() and splx() are no longer here; they are inline functions
	  (could be macros for other compilers).  splz() is the nontrivial
	  part of the old splx().

/usr/src/sys/i386/isa/ipl.h
	o New file.  Supposed to have only bus-dependent stuff.  Perhaps
	  the h/w masks should be declared here.

/usr/src/sys/i386/isa/isa.c:
	o DON'T APPLY ALL OF THIS DIFF.  You need only things involving
	  *mask and *MASK and comments about them.  netmask is now a pure
	  software mask.  It works like the softclock mask.

/usr/src/sys/i386/isa/vector.s:
	o Reorganize AUTO_EOI* macros.
	o Option FAST_INTR_HANDLER_USERS_ES for people who don't trust
	  fastintr handlers.
	o fastintr handlers need to metamorphose into ordinary interrupt
	  handlers if their SWI bit has become set.  Previously, sio had
	  unintended latency for handling output completions and input
	  of SLIP framing characters because this was not done.

/usr/src/sys/net/netisr.h:
	o The machine-dependent stuff is now imported from <machine/ipl.h>.

/usr/src/sys/sys/systm.h
	o DON'T APPLY ALL OF THIS DIFF.  You need mainly the different
	  splx() prototype.  The spl*() prototypes are duplicated as
	  inlines in <machine/ipl.h> but they need to be duplicated here
	  in case there are no inlines.  I sent systm.h and cpufunc.h
	  to Garrett.  We agree that spl0 should be replaced by splnone
	  and not the other way around like I've done.

/usr/src/sys/kern/kern_clock.c
	o splsoftclock() now lowers cpl so the direct call to softclock()
	  works as intended.
	o softclock() interface changed to avoid passing the whole frame
	  (some machines may need another change for profile_tick()).
	o profiling renamed _profiling to avoid ANSI namespace pollution.
	  (I had to improve the mcount() interface and may as well fix it.)
	  The GUPROF variant doesn't actually reference profiling here,
	  but the 'U' in GUPROF should mean to select the microtimer
	  mcount() and not change the interface.
1994-04-02 07:00:53 +00:00
David Greenman
dad5c5fe90 ifdef KERNEL the pmap_kextract inline function; ps is unhappy otherwise.
Pointed out by Frank Terhaar-Yonkers <fty@vislab.epa.gov>.
1994-03-25 22:08:59 +00:00
David Greenman
ed7fcbd079 From John Dyson: performance improvements to the new bounce buffer
code.
1994-03-24 23:12:48 +00:00
David Greenman
29360eb099 Changed dynamic stack grow code to grow by "SGROWSIZ" amount. Initially
allocate SGROWSIZ amount of stack. Also set vm_ssize to the initial
stack VM size. Increased DFLSSIZ stack rlimit default to 8MB.
1994-03-21 09:35:24 +00:00
Steven Wallace
2d997c1071 Updated include files for sound drivers. 1994-03-11 10:28:36 +00:00
David Greenman
04f1835605 1) "Pre-faulting" in of pages into process address space
Eliminates vm_fault overhead on process startup and
		mmap referenced data for in-memory pages.

		(process startup time using in-memory segments *much* faster)

	2)	Even more efficient pmap code.  Code partially cleaned up.
		More comments yet to follow.

		(generally more efficient pte management)

	3)	Pageout clustering ( in addition to the FreeBSD V1.1 pagein
		clustering.)

		(much faster paging performance on non-write behind disk
		subsystems, slightly faster performance on other systems.)

	4)	Slightly changed vm_pageout code for more efficiency and
		better statistics.  Also, resist swapout a little more.

		(less likely to pageout a recently used page)

	5)	Slight improvement to the page table page trap efficiency.

		(generally faster system VM fault performance)

	6)	Defer creation of unnamed anonymous regions pager until needed.

		(speeds up shared memory bss creation)

	7)	Remove possible deadlock from swap_pager initialization.

	8)	Enhanced procfs to provide "vminfo" about vm objects and user
		pmaps.

	9)	Increased MCLSHIFT/MCLBYTES from 2K to 4K to improve net &
		socket performance and to prepare for things to come.

John Dyson
dyson@implode.root.com
David Greenman
davidg@root.com
1994-03-07 11:38:49 +00:00
Andrey A. Chernov
4aa43a6797 Bump CLK_TCK to more precise value (128)
If you want more precise, use directly getrusage(),
because clock() emulated via it.
1994-02-26 00:56:02 +00:00
Jeffrey Hsu
ffe25c427d Correct definitions of flags used by sigreturn to validate sigcontext. 1994-02-24 00:21:12 +00:00
Christoph Robitschko
52fda4247e Make the screen savers runtime switchable. Everybody wants a
different default saver, and the size increase in the kernel is
minimal ( < 2.5K ).
1994-02-04 10:36:15 +00:00
Nate Williams
8b2e5491db From: sos@login.dkuug.dk (S|ren Schmidt)
Subject: syscons-1.3
Date: Sat, 29 Jan 94 23:33:50 MET

But here is the (hopefully) final syscons-1.3....

....

I've changed sgetc so it works as the pccons parallel
(it now uses a scgetc internally).


[
There were a couple changes that Bruce Evans sent me that were applied
to this version along with some changes that S'ren didn't incorporate
into the final version.  There will be only minor changes if anything
from this version to his final release.
]
1994-02-01 06:22:29 +00:00
David Greenman
a301c9d5d4 Added four pattern memory test routine that is done at startup.
...added filli - "fill integer" support routine.
1994-01-31 23:48:23 +00:00
David Greenman
da59a31c01 WINE/user LDT support from John Brezak, ported to FreeBSD by Jeffrey Hsu
<hsu@soda.berkeley.edu>.
1994-01-31 10:27:13 +00:00
David Greenman
0de1886721 Fix broken bit definitions for pte/pde. 1994-01-31 06:52:41 +00:00
David Greenman
ec120393a0 VM system performance improvements from John Dyson and myself. The
following is a summary:

1) increased object cache back up to a more reasonable value.
2) removed old & bogus cruft from machdep.c (clearseg, copyseg,
	physcopyseg, etc).
3) inlined many functions in pmap.c
4) changed "load_cr3(rcr3())" into tlbflush() and made tlbflush inline
	assembly.
5) changed the way that modified pages are tracked - now vm_page struct
	is kept updated directly - no more scanning page tables.
6) removed lots of unnecessary spl's
7) removed old unused functions from pmap.c
8) removed all use of page_size, page_shift, page_mask variables - replaced
	with PAGE_ constants.
9) moved trunc/round_page, atop, ptoa, out of vm_param.h and into i386/
	include/param.h, and optimized them.
10) numerous changes to sys/vm/ swap_pager, vnode_pager, pageout, fault
	code to improve performance. LRU algorithm modified to be more
	effective, read ahead/behind values tuned for better performance,
	etc, etc...
1994-01-31 04:19:00 +00:00
David Greenman
801276d0ae Removed no longer used "wire" element in pv struct. 1994-01-27 03:36:14 +00:00
Andrey A. Chernov
994f4bd197 Replace old-style Joerg copyright to berkeley-style,
per Joerg request.
1994-01-26 20:08:30 +00:00
David Greenman
7f8cb36869 "New" VM system from John Dyson & myself. For a run-down of the
major changes, see the log of any effected file in the sys/vm
directory (swap_pager.c for instance).
1994-01-14 16:25:31 +00:00
David Greenman
e10a618657 Increased maximum and default 'size' limits to more reasonable values. 1994-01-03 16:00:52 +00:00
David Greenman
c8a13ecd00 Convert syscall to trapframe. Based on work done by John Brezak. 1994-01-03 07:55:47 +00:00
David Greenman
e2f27b409f Changed pointer type from caddr_t to void * for fillw, insw, outsw, and
outsb.
1993-12-21 21:27:04 +00:00
Andrey A. Chernov
8b6f2438aa Separate read/write and format GAPs. 1993-12-21 05:11:10 +00:00
Andrew Moore
90d795a112 adding libc/quad:
added _QUAD_HIGH/LOW
added (U_)QUAD_MAX/MIN
(from NetBSD)
1993-12-19 05:14:46 +00:00
Garrett Wollman
aaf08d94ca Make everything compile with -Wtraditional. Make it easier to distribute
a binary link-kit.  Make all non-optional options (pagers, procfs) standard,
and update LINT to reflect new symtab requirements.

NB: -Wtraditional will henceforth be forgotten.  This editing pass was
primarily intended to detect any constructions where the old code might
have been relying on traditional C semantics or syntax.  These were all
fixed, and the result of fixing some of them means that -Wall is now a
realistic possibility within a few weeks.
1993-12-19 00:55:01 +00:00
Andrey A. Chernov
52449fdb1a From vak@kiae.su:
incorporate Joerg Wunsch floppy formatting code
1993-12-19 00:37:25 +00:00
Andrew Moore
05e634ef64 From: Jeffrey Hsu <hsu@soda.berkeley.edu>
The following patch adds the addr argument to signal handlers.

The kernel with the patch is no more and no less in compliance or in
violation of POSIX and ANSI C than the kernel before the patch.

The added functionality this addr argument provides is quite useful.  It
enables an entire class of algorithms which use mprotect to trace memory
references.  Beside garbage collectors, I have heard of this technique being
applied to debuggers and profilers.  The only benchmarking I've performed is
using akcl to compile maxima:  without the kernel patch, it takes 7 hours to
compile maxima, while with stratified garbage collection, it only takes 50
minutes.

Basically, I can't think of a reason not to add the addr argument and there
is a compelling need for it.

If you find the patch acceptable, please let me know so I can send my
FreeBSD akcl config files to wfs for inclusion in the core akcl release.
The old 386BSD config files there won't work on either NetBSD or FreeBSD.
1993-12-03 05:10:08 +00:00
Andrey A. Chernov
4a8e05dd59 Move soundcard.h & ultrasound.h to proper location <machine/...>
to allow application access it.
1993-11-27 22:16:44 +00:00
Garrett Wollman
381fe1aaf4 Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and
add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
Rodney W. Grimes
57bb0ee45f New version of scsi code from Julian 1993-11-18 05:03:27 +00:00
Garrett Wollman
35089dd415 Fixed comments that start within a comment, so code compiles cleanly with
-Wcomment.
1993-11-17 23:25:28 +00:00
David Greenman
eee5a63430 new process tracing code from Sean Eric Fagen (sef@kithrup.com).
...also, fixed up the syscall args to make GCC happy.
1993-11-16 09:54:57 +00:00
David Greenman
0967373e1c First steps in rewriting locore.s, and making info useful
when the machine panics.

i386/i386/locore.s:
1) got rid of most .set directives that were being used like
	#define's, and replaced them with appropriate #define's in
	the appropriate header files (accessed via genassym).
2) added comments to header inclusions and global definitions,
	and global variables
3) replaced some hardcoded constants with cpp defines (such as
	PDESIZE and others)
4) aligned all comments to the same column to make them easier to
	read
5) moved macro definitions for ENTRY, ALIGN, NOP, etc. to
	/sys/i386/include/asmacros.h
6) added #ifdef BDE_DEBUGGER around all of Bruce's debugger code
7) added new global '_KERNend' to store last location+1 of kernel
8) cleaned up zeroing of bss so that only bss is zeroed
9) fix zeroing of page tables so that it really does zero them all
	- not just if they follow the bss.
10) rewrote page table initialization code so that 1) works correctly
	and 2) write protects the kernel text by default
11) properly initialize the kernel page directory, upages, p0stack PT,
	and page tables. The previous scheme was more than a bit
	screwy.
12) change allocation of virtual area of IO hole so that it is
	fixed at KERNBASE + 0xa0000. The previous scheme put it
	right after the kernel page tables and then later expected
	it to be at KERNBASE +0xa0000
13) change multiple bogus settings of user read/write of various
	areas of kernel VM - including the IO hole; we should never
	be accessing the IO hole in user mode through the kernel
	page tables
14) split kernel support routines such as bcopy, bzero, copyin,
	copyout, etc. into a seperate file 'support.s'
15) split swtch and related routines into a seperate 'swtch.s'
16) split routines related to traps, syscalls, and interrupts
	into a seperate file 'exception.s'
17) remove some unused global variables from locore that got
	inserted by Garrett when he pulled them out of some .h
	files.

i386/isa/icu.s:
1) clean up global variable declarations
2) move in declaration of astpending and netisr

i386/i386/pmap.c:
1) fix calculation of virtual_avail. It previously was calculated
	to be right in the middle of the kernel page tables - not
	a good place to start allocating kernel VM.
2) properly allocate kernel page dir/tables etc out of kernel map
	- previously only took out 2 pages.

i386/i386/machdep.c:
1) modify boot() to print a warning that the system will reboot in
	PANIC_REBOOT_WAIT_TIME amount of seconds, and let the user
	abort with a key on the console. The machine will wait for
	ever if a key is typed before the reboot. The default is
	15 seconds, but can be set to 0 to mean don't wait at all,
	-1 to mean wait forever, or any positive value to wait for
	that many seconds.
2) print "Rebooting..." just before doing it.

kern/subr_prf.c:
1) remove PANICWAIT as it is deprecated by the change to machdep.c

i386/i386/trap.c:
1) add table of trap type strings and use it to print a real trap/
	panic message rather than just a number. Lot's of work to
	be done here, but this is the first step. Symbolic traceback
	is in the TODO.

i386/i386/Makefile.i386:
1) add support in to build support.s, exception.s and swtch.s

...and various changes to various header files to make all of the
	above happen.
1993-11-13 02:25:21 +00:00
Andrey A. Chernov
4649951014 Name of ioctl's include sys/spkr.h changed to machine/speaker.h 1993-11-09 02:31:53 +00:00
Garrett Wollman
6e393973f5 Made all header files idempotent and moved incorrect common data from
headers into a related source file.  Added cons.h as first step towards
moving i386/i386/cons.h to machine/cons.h where it belongs.
1993-11-07 17:43:17 +00:00
Rodney W. Grimes
e7e96f200b Put back the $Id$ string 1993-10-28 06:11:38 +00:00
Jordan K. Hubbard
33853f9752 This is syscons version 1.1 1993-10-28 05:27:36 +00:00
Jordan K. Hubbard
dad544ec41 Soundcard driver include file (/usr/include/machine/soundcard.h) 1993-10-23 10:50:21 +00:00
Rodney W. Grimes
34a8ed1be1 Removed all patch kit headers, sccsid and rcsid strings, put $Id$ in, some
minor cleanup.  Added $Id$ to files that did not have any version info, etc
1993-10-16 14:40:57 +00:00
Rodney W. Grimes
d42d25c451 param.h:
Mark the fact that PGSHIFT and PDRSHIFT are really the same as
PG_SHIFT and PD_SHIFT, these should be collapsed some day soon.

Document that KERNBASE should really be KPTDPTDI << PDRSHIFT, for
now leave it as the constant 0xFE000000 until I make a seperate
common header file for this stuff (vmaddresses.h?)

Remove NKMEMCLUSTERS define, it was only being used to define
VM_KMEM_SIZE, so why have all the indirection.  Besides who wants
to work in CLBYTE sizes chuncks.


pmap.h:

Fix $Id$ and some other minor format clean ups.

Remove the XXX comment about NKPDE, since it now has the correct value
of 7.

Remove unused LASTPTDI and move the APTD into the very end of memory to
free up 4MB of kernel virtual address space.
Remove unused RSVDPTDI and free up 12MB of kernel virtual address space.


vmparam.h

Fix $Id$.

Increase SHMMAXPGS to 512 (2MB) now that there is room for it to be
bigger.  The XXX comment stays until the kernel moves down in memory
to free up enough space to use the proper default of 4MB.

VM_KMEM_SIZE is now a direct constant stating the size of the kernel
malloc region.  Increased the value from 3MB to 16MB.
1993-10-15 10:07:45 +00:00
Rodney W. Grimes
a27df7823f KPTDI_LAST renamed to KPTDI 1993-10-12 15:09:37 +00:00
Rodney W. Grimes
988d75b3d6 Eliminate definition of I386_PAGE_SIZE and use NBPG instead
Cleaned up tabs vs spaces after #define to make file consistent.
Removed now unused definitions of I386_PAGE_SIZE and I386_PDR_SIZE

Note That these two where unused and had the wrong values anyway!
Changed I386_KPDES to NKPDE
Changed I386_UPDES to NUPDE

Redid constant assignments of *PTDI's to be sizeable and relative.
1993-10-12 13:58:01 +00:00
Rodney W. Grimes
da73bf46a5 Fixed PHYSTOKV, addition operator on pointers is the wrong thing to do
here.  This is really a crock, but it works.
1993-10-12 12:08:16 +00:00
Rodney W. Grimes
d529c3d85c Add PHYSTOKV used in scsi drivers with a correct definition based on
KERNBASE.

Change #define<tab> to #define<space> on lines that had it wrong
1993-10-12 07:13:12 +00:00
David Greenman
89ccb410d4 Correct spelling of "SHMMAXPGS" so the config override will actually work. 1993-10-09 15:29:04 +00:00
Rodney W. Grimes
09f07fb057 All:
Remove patch kit headers, and add $Id$
	This is mostly to align some more code with NetBSD.

cpu.h:
	Remove the old function vs. include configuration stuff that was
	ifdefed out when we went to inline functions.
	Remove the define of resettodr that made it a nop, there is
	already a function that makes it a nop, no need to #define one.
	Remove the #defines of processor types, they are now defined
	in cputypes.h, #include that file.
	Add struct cpu_nameclass for support of cpu types.

frame.h:
	include sys/signal.h, it will be needed in the future.
	put the sigframe structure here that was in machdep.c

pcb.h:
	Add multiple inclusion protection.
	Add pcb_ldt and pcb_ldt_len to pcb structure, this is for the
	user mode ldt.
1993-10-08 20:51:00 +00:00
Rodney W. Grimes
3225c4b443 Define the types of cpu's there are, from NetBSD 1993-10-08 13:40:54 +00:00
Rodney W. Grimes
c77ba36045 Fix definitions to be in terms of a minimum number of constants by
using the SHIFT value as the basis for the other values, for example
instead of:
#define		NBPG		4096
#define		PGSHIFT		12
use:
#define		PGSHIFT		12
#define		NBPG		(1 << PGSHIFT)

===================================================================
RCS file: /a/cvs/386BSD/src/sys/i386/include/param.h,v
retrieving revision 1.3
diff -c -r1.3 param.h
*** 1.3	1993/10/08 12:49:55
--- param.h	1993/10/08 12:53:19
***************
*** 52,76 ****
  #define ALIGNBYTES	(sizeof(int) - 1)
  #define ALIGN(p)	(((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)

- #define	NBPG		4096		/* bytes/page */
- #define	PGOFSET		(NBPG-1)	/* byte offset into page */
  #define	PGSHIFT		12		/* LOG2(NBPG) */
  #define	NPTEPG		(NBPG/(sizeof (struct pte)))

- #define NBPDR		(1024*NBPG)	/* bytes/page dir */
- #define	PDROFSET	(NBPDR-1)	/* byte offset into page dir */
  #define	PDRSHIFT	22		/* LOG2(NBPDR) */

  #define	KERNBASE	0xFE000000	/* start of kernel virtual */
  #define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)

! #define	DEV_BSIZE	512
  #define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
  #define BLKDEV_IOSIZE	2048
  #define	MAXPHYS		(64 * 1024)	/* max raw I/O transfer size */

- #define	CLSIZE		1
  #define	CLSIZELOG2	0

  /* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
  #define	SSIZE	1		/* initial stack size/NBPG */
--- 52,79 ----
  #define ALIGNBYTES	(sizeof(int) - 1)
  #define ALIGN(p)	(((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)

  #define	PGSHIFT		12		/* LOG2(NBPG) */
+ #define	NBPG		(1 << PGSHIFT)	/* bytes/page */
+ #define	PGOFSET		(NBPG-1)	/* byte offset into page */
  #define	NPTEPG		(NBPG/(sizeof (struct pte)))

  #define	PDRSHIFT	22		/* LOG2(NBPDR) */
+ #define NBPDR		(1 << PDRSHIFT)	/* bytes/page dir */
+ #define	PDROFSET	(NBPDR-1)	/* byte offset into page dir */

  #define	KERNBASE	0xFE000000	/* start of kernel virtual */
  #define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)

! #define	KERNSIZE	0x00C00000	/* size of kernel virtual */
!
  #define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
+ #define	DEV_BSIZE	(1 << DEV_BSHIFT)
+
  #define BLKDEV_IOSIZE	2048
  #define	MAXPHYS		(64 * 1024)	/* max raw I/O transfer size */

  #define	CLSIZELOG2	0
+ #define	CLSIZE		(1 << CLSIZELOG2)

  /* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
  #define	SSIZE	1		/* initial stack size/NBPG */
***************
*** 92,99 ****
  #ifndef	MCLSHIFT
  #define	MCLSHIFT	11		/* convert bytes to m_buf clusters */
  #endif	/* MCLSHIFT */
! #define	MCLBYTES	(1 << MCLSHIFT)	/* size of a m_buf cluster */
! #define	MCLOFSET	(MCLBYTES - 1)	/* offset within a m_buf cluster */

  #ifndef NMBCLUSTERS
  #ifdef GATEWAY
--- 95,102 ----
  #ifndef	MCLSHIFT
  #define	MCLSHIFT	11		/* convert bytes to m_buf clusters */
  #endif	/* MCLSHIFT */
! #define	MCLBYTES	(1 << MCLSHIFT)	/* size of an m_buf cluster */
! #define	MCLOFSET	(MCLBYTES - 1)	/* offset within an m_buf cluster */

  #ifndef NMBCLUSTERS
  #ifdef GATEWAY
1993-10-08 13:01:34 +00:00
Rodney W. Grimes
89ec6ec6bf Removed patch kit header. Cleaned up tabbing and removed extra blank
lines to match NetBSD.  Added $Id$.
Added MID_MACHINE from NetBSD.
Removed definition of DELAY() for non-kernel soures.
Fixed some small english errors that had been corrected in NetBSD.
File is now identical to NetBSD's, but will be changing soon for some
of my clean up work.
1993-10-08 12:49:55 +00:00
Rodney W. Grimes
f43bd59ec7 Architecture specific syscalls (i386) from NetBSD 1993-10-08 11:31:40 +00:00
Jordan K. Hubbard
0978d2b15f Latest changes for XFree86 2.0 1993-10-04 22:21:10 +00:00
Rodney W. Grimes
60de6c38e0 New resting home for console.h, it is machine specific. 1993-10-01 00:00:43 +00:00
Rodney W. Grimes
b6c78fe436 define SHMMAXPGS where it is suppose to be, you can over ride this with
a kernel config options "SHMAXPGS=xxx", default is currently 64 pages
due to limit kernel map space.
1993-09-27 00:36:57 +00:00
Rodney W. Grimes
84ecc220b1 >From Theo Derradt
This is a machine specific include, it belongs in the machine specific
directory.
1993-09-08 19:29:54 +00:00
Rodney W. Grimes
b3b174f5cd Increased stack size to 8MB just to be on the real safe side. 1993-09-01 09:38:32 +00:00
Rodney W. Grimes
8373b81238 Changed MAXSSIZ from MAXDSIZ to 2MB 1993-08-28 09:19:01 +00:00
Andrew Moore
6bef4df57c prefixed inline functions' parameter names with _ and declared
the return type explicitly.
1993-08-27 05:09:38 +00:00
Andrew Moore
24a82630a2 adding fpgetround(3) IEEE floating point environment support 1993-08-25 09:01:44 +00:00
Nate Williams
f798d06073 fts(3) integration patches 1993-07-28 01:42:17 +00:00
David Greenman
269312019a * Applied fixes from Bruce Evans to fix COW bugs, >1MB kernel loading,
profiling, and various protection checks that cause security holes
  and system crashes.
* Changed min/max/bcmp/ffs/strlen to be static inline functions
  - included from cpufunc.h in via systm.h. This change
  improves performance in many parts of the kernel - up to 5% in the
  networking layer alone. Note that this requires systm.h to be included
  in any file that uses these functions otherwise it won't be able to
  find them during the load.
* Fixed incorrect call to splx() in if_is.c
* Fixed bogus variable assignment to splx() in if_ed.c
1993-07-27 10:52:31 +00:00
Charlie Root
c26491ecf4 Increased default data size (DFLDSIZ) to 16MB. Need to rebuild libutil,
kernel, ps and w for this to work!
1993-07-03 21:21:35 +00:00
Nate Williams
beb7ebb072 Added (protection) around negative constants, in case a program wants
to use the negative of that constant.

#define NEG_NUM -3
#define SAFE_NEG_NUM (-3)

i = -NEG_NUM;		/* Error --3 */
j = -SAFE_NEG_NUM	/* Okay -(-3) */
1993-06-30 22:59:18 +00:00
Nate Williams
330b151312 Setting up for updated (usable) FPE atof/vfprintf/vfscanf fixes 1993-06-29 13:34:33 +00:00
Rodney W. Grimes
5b81b6b301 Initial import, 0.1 + pk 0.2.4-B1 1993-06-12 14:58:17 +00:00