Commit Graph

626 Commits

Author SHA1 Message Date
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