Commit Graph

949 Commits

Author SHA1 Message Date
David Greenman
01825ed3fa panic if length is < 0 in ffs_truncate(). 1994-09-02 10:24:55 +00:00
David Greenman
8fceb1ba2d Disallow truncating to negative file sizes. Doing so causes ffs_truncate()
and perhaps other fs truncate's to go crazy and panic the machine or worse.
This fixes the truncate bug reported by Michael Class.
1994-09-02 10:23:43 +00:00
David Greenman
b36a2ba1ce munmapfd() was being called with one too few params - bug introduced
during my initial kernel port.
1994-09-02 10:17:30 +00:00
David Greenman
35aee0800d Converted P_LINK -> P_FORW, P_RLINK -> P_BACK, minor optimization. 1994-09-02 05:58:51 +00:00
David Greenman
2fc62994a0 Make olstat() consistent with lstat() - so they both return the same
owner..

Submitted by:	Kirk McKusick
1994-09-02 04:14:44 +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
9ee9202471 It's not necessary to make page tables write-through, so get rid of this
(this was an experimental change which probably shouldn't have been
committed). I/O pages are still marked non-cacheable, however.
1994-09-02 01:29:20 +00:00
David Greenman
f992f48043 Fixed bug that caused system processes to run at realtime priority. 1994-09-01 11:20:11 +00:00
David Greenman
55020640dc Changed MAX to max. 1994-09-01 11:06:36 +00:00
David Greenman
60fef21477 Realtime priority scheduling support.
Added "sys/rtprio.h" with the used defines.
    Added rtprio(2) - the kernel interface.                  init_sysent.c,
                                                             kern_resource.c
                                                             syscalls.master
    Added 32 new runqueues (rtqs), with initialization.      kern_proc.c
                                                             kern_synch.c
    Realtime processes do not change nice/priority           kern_synch.c
    Added a column "rt" to ddb's ps (#ifdef RTPRIO_DEBUG)    kern_synch.c
    Realtime priorities are enherited through fork().        kern_fork.c
    Init (and children) NOT run as realtime process.         init_main.c

Submitted by:	Henrik Vestergaard Draboel
1994-09-01 05:15:50 +00:00
David Greenman
e8fb0b2c17 Realtime priority scheduling support.
Submitted by:	Henrik Vestergaard Draboel
1994-09-01 05:12:53 +00:00
David Greenman
431be400a7 Got rid of some old, unused junk. 1994-09-01 03:16:40 +00:00
David Greenman
eb0c95a462 Got rid of redundant declaration, and changed IFF_LLC0 to IFF_LINK0. 1994-09-01 03:08:27 +00:00
David Greenman
9670686d24 Added ze driver (brought over from 1.1.5). 1994-09-01 02:21:20 +00:00
Stefan Eßer
e295ba7678 Submitted by: Stefan Esser <se@ZPR.Uni-Koeln.DE>
Added "device pci" and "device ncr" lines for a generic kernel with
support for the NCR 53c810 PCI SCSI host adapter (with no interrupts
configured, ie. working with 100Hz timer interrupts only).
1994-09-01 02:19:28 +00:00
Stefan Eßer
96a09a3064 Submitted by: Stefan Esser <se@ZPR.Uni-Koeln.DE>
Added entry for 'de' device in anticipation of Matt Thomas'
PCI Ethernet driver (required by the PCI autoconfig code).
1994-09-01 02:12:23 +00:00
Stefan Eßer
5ec480ad23 Submitted by: Wolfgang Stanglmeier <wolf@dentaro.GUN.de>
Merged in changes required for NetBSD support (by mycroft@gnu.ai.mit.edu)
and support for multiple NCR chips.
1994-09-01 02:01:45 +00:00
Stefan Eßer
37bd2c9c33 Submitted by: Wolfgang Stanglmeier <wolf@dentaro.GUN.de> + Stefan Esser <se>
Directory for PCI autoconfigure and device driver code.
1994-09-01 01:45:19 +00:00
Stefan Eßer
2c57cee563 Reviewed by:
Submitted by:
Added lines for 'pci' and 'ncr' devices (found under i386/pci).
1994-08-31 23:40:38 +00:00
Stefan Eßer
2b9fc9390f Reviewed by: Stefan Esser <se>
Submitted by:	Wolfgang Stanglmeier <wolf@dentaro.GUN.de>
Added PCI support (call of pci_config(), if NPCI > 0).
1994-08-31 23:36:56 +00:00
Stefan Eßer
fc37ed7ae1 Reviewed by: Stefan Esser <se>
Debugger() takes an (char*) argument, changed macro definition accordingly.
1994-08-31 23:32:32 +00:00
Stefan Eßer
8eae5644c1 Reviewed by: Stefan Esser <se>
Calculation of 'cd->cmdscount' now as in 'sd.c' (required for ncr scsi).
CDOUTSTANDING defined as '1' (as the comment says), was '2' in fact ...
Debugger takes an (char*) argument, changed macro definition accordingly.
1994-08-31 22:50:08 +00:00
David Greenman
ac47fce534 Fixed bug that surfaced with last commit for NOBOUNCE -> BOUNCE_BUFFERS by
adding appropriate #ifdefs and changing some variables to externs (as they
should have always been).
1994-08-31 15:55:29 +00:00
David Greenman
b1c9b68c8e Conditionalized support for syscons as the console so that it can be
made optional in the kernel config file.

Submitted by:	John Hay
1994-08-31 07:44:22 +00:00
David Greenman
9aba88bf29 Rather than exclude bounce buffers support with NOBOUNCE, include it
with BOUNCE_BUFFERS. This is more intuitive, and is better for future
multiplatform support. Added BOUNCE_BUFFERS option to the GENERIC and
LINT kernel config files.
1994-08-31 06:17:49 +00:00
David Greenman
e81097cf46 Quiet down compiler warnings. 1994-08-31 04:45:24 +00:00
David Greenman
da992aeb48 Changed STRC -> P_TRACED. 1994-08-30 20:18:52 +00:00
David Greenman
5d39db03f6 Whoops...clean up after me cleaning up after Bruce. 1994-08-30 20:11:40 +00:00
David Greenman
0711286530 Cleaned up after Bruce: there were still some things that included
com.h/lpa.h. Removed all vestiges of com/lpa out of conf.c and also
fixed up the end of cdevsw/bdevsw to have "no" routines instead of
a NULL pointer (suggested by someone a few weeks back).
1994-08-30 19:36:35 +00:00
David Greenman
694292e3df Moved gpl'd fpemul into 2.0 cvs tree. Changed it's location to
sys/gnu/i386/fpemul/.
1994-08-30 19:01:44 +00:00
David Greenman
a6ca859eb1 Fixed bug caused by change of rlimit variables to quad_t's. The bug was in
using min() to calculate the minimum of rss_cur,rss_max - since these
are now quad_t's and min() takes u_ints...the comparison later for exceeding
the rss limit was always true - resulting in rather serious page thrashing.
Now using new qmin() function for this purpose.

Fixed another bug where PG_BUSY pages would sometimes be paged out (bad!).
This was caused by the PG_BUSY flag not being included in a comparison.
1994-08-30 18:27:44 +00:00
David Greenman
147db1cbab Added qmin and qmax functions to deal with quad_t's. 1994-08-30 18:19:47 +00:00
David Greenman
e66defe8ab Changed to reclaim memory from other buffers to eliminate memory
thrashing.

Submitted by:	John Dyson
1994-08-30 18:19:11 +00:00
Bruce Evans
8fdce837c3 Don't define LOCORE (as nothing) in sources. It is now defined
consistently (as 1) in Makefile.i386 for all assembler sources.
1994-08-30 17:19:10 +00:00
Bruce Evans
292cf0fd45 Add conf.c, machdep.c, exception,s, support.s and swtch.s so that config
will do most of the work for handling them.  Only one extra flag and one
bogus dependency was used for machdep.c and there was never anything
special about the others.

Add locore.s, but commented out.  It's still special.

Remove com.c and lpa.c.
1994-08-30 17:18:34 +00:00
Bruce Evans
0611064bd9 Remove exception.o, swtch.o, support.o, conf.o and machdep.o from
SYSTEM_OBS.  They are now normal objects.

Remove stale dependencies for the above now-normal objects and for
locore.o and generate dependencies using mkdep.  Config doesn't
generate lists of assembler source files so the lists to be mkdep'ed
have to be given explictly.  Only the standard *.s files are given,
so the dependencies for gnu/fpemul/*.s are incomplete.  *.S files
would be handled right if config put them in CFILES.

Don't define NPX.  It was replaced by NNPX > 0 years ago.

Define LOAD_ADDRESS in COPTS so that compiling machdep.c isn't a special
case.

Moving around the dependencies exposed a bug in make.  It doesn't
know that assym.s and ./assym.s are the same.  Add a rule tell it.
1994-08-30 17:17:49 +00:00
Andrey A. Chernov
eda43f1aca Change RAW_PART back to 3, too early step right now, disklabels need more
work
Change hardcoded 3 value in several places to RAW_PART define
1994-08-30 14:31:38 +00:00
Andrey A. Chernov
b7a8860d88 Change WDRAW back to 3, too early step right now, disklabels needs more
work
Change hardcoded 'd' in printfs to 'a' + WDPART
1994-08-30 14:26:13 +00:00
Bruce Evans
2c22dd40a2 Conditionalize support for my debugger. This normally saves 304 bytes. 1994-08-30 01:38:04 +00:00
Jordan K. Hubbard
2de1d01ab8 Make decl/define for Debugger() match reality.
Submitted by:	jkh
1994-08-30 00:12:11 +00:00
Andrey A. Chernov
0e91a83462 Fake floppy partition RAW_PART=2 now 1994-08-29 21:47:11 +00:00
Andrey A. Chernov
39a66415f6 RAW_PART=2 1994-08-29 21:37:49 +00:00
Andrey A. Chernov
8a1d40881d Now WDRAW=2 1994-08-29 21:35:16 +00:00
Andrey A. Chernov
b2be795bf2 Use RAW_PART=2 to trick diskerr 1994-08-29 21:32:31 +00:00
Andrey A. Chernov
c594d6c8a3 Raw partition is 2 now 1994-08-29 21:25:11 +00:00
Andrey A. Chernov
3b2dc1fcd6 Raw partition is 2 now 1994-08-29 21:19:27 +00:00
David Greenman
fff93ab600 Patches from John Dyson to improve swap code efficiency.
Religiously add back pmap_clear_modify() in vnode_pager_input until we figure
out why system performance isn't what we expect.

Submitted by:	John Dyson (swap_pager) & David Greenman (vnode_pager)
1994-08-29 06:23:19 +00:00
David Greenman
1cdeb653a8 "bogus" fixes from 1.1.5 to work around some cache coherency problems. 1994-08-29 06:09:15 +00:00
Andrey A. Chernov
67f5dcad6b Bruce was right, stupid device returns non-busy state too early,
add only one DELAY(10) after inb(non_busy) now
1994-08-28 20:37:59 +00:00
Bruce Evans
66e2076c9e Reformat recent additions to the same style as the original. 1994-08-28 16:53:35 +00:00