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789 Commits

Author SHA1 Message Date
Bruce Evans
0513ce7f75 Use PCB_SAVEFPU_SIZE instead of a too-small size in savectx(). This 
bug only affected FPU emulators.  It might have caused bogus FPU states
in core dumps and in the child pcb after a fork.  Emulated FPU states
in core dumps don't work for other reasons, and the child FPU state
is reinitialized by exec, so the problem might not have caused any
noticeable affects.

Cleaned up #includes.
 1996-04-13 11:24:13 +00:00
Bruce Evans
5b5220556d Generate #define of PCB_SAVEFPU_SIZE for use in savectx(). 1996-04-13 11:22:57 +00:00
Poul-Henning Kamp
22a31706dc Make alltraps a .globl so that DDB doesn't make people belive they have 
an ALIGNFLT on their hands all the time.
 1996-04-12 12:22:14 +00:00
Bruce Evans
3745f80a48 Moved AUTO_EOI_[12] and most sio and pcvt options out of the makefile. 1996-04-11 21:18:49 +00:00
Jordan K. Hubbard
7506b46e07 Disable sio3 in GENERIC - it messes with ATI cards. 1996-04-10 23:03:36 +00:00
Nate Williams
9368fc2012 hp300 -> i386 1996-04-10 05:27:11 +00:00
Jordan K. Hubbard
dbb315cb8e Gag! Somebody removed the bus mouse from GENERIC for reasons unknown. 
That certainly explains why I noticed it suddenly missing from the
2.2 SNAPSHOT! :-)
 1996-04-09 09:00:41 +00:00
Sujal Patel
1dce4e5d60 Add a lock for DMA Channels to prevent two devices from using the same DMA 
channel at the same time.  The functions isa_dma_acquire() and
isa_dma_release() should be used in all ISA drivers which call isa_dmastart().
This can be used more generally to register the usage of DMA channels in
any driver, but it is required for drivers using isa_dmastart() and friends.

Clean up sanity checks, error messages, etc.
Remove isa_dmadone_nobounce(), it is no longer needed

Reviewed by:	bde
 1996-04-08 19:38:57 +00:00
Garrett Wollman
dadd5f3a95 Added a $Id$ keyword. Bruce still needs to put a copyright notice 
on this file.
 1996-04-08 16:41:06 +00:00
Bruce Evans
3fd674e22b Use breakpoint() function instead of inline assembler. 1996-04-07 18:34:59 +00:00
Bruce Evans
5dbd168e2e Changed bdb() to breakpoint() and always enable it. 
Made the style more consistent, especially for the new Pentium functions.
 1996-04-07 18:30:56 +00:00
Bruce Evans
6ffde942bf Removed never-used #includes of <machine/cpu.h>. Many were apparently 
copied from bad examples.
 1996-04-07 17:39:28 +00:00
Bruce Evans
3157adc8af Removed now-unused #includes of <machine/cpu.h>. They were for bootverbose 
being declared in the wrong place.
 1996-04-07 17:32:42 +00:00
Bruce Evans
73dc05d67c Moved declaration of bootverbose to a better place. It isn't 
machine-dependent.

Moved declaration of cpu_fork() to a better place.  Only its
implementation is machine-dependent.
 1996-04-07 16:44:28 +00:00
Bruce Evans
5e0f6c4338 Fixed the ownership and permissions of /dev/io. Rev.1.32 broke rev.1.29. 1996-04-07 14:59:26 +00:00
John Dyson
07b1059113 Major cleanups for the pmap code. 1996-04-07 02:23:05 +00:00
David Greenman
baddaf9480 Switch 586/686 back to generic_bzero and #if 0'd the "optimized" code. It 
turns out that it actually reduces performance in real-world cases.

Noticed by:	bde
 1996-04-06 01:06:06 +00:00
Andrey A. Chernov
2cb9219c5d Fix adjkerntz expression priority 1996-04-05 18:56:10 +00:00
Andrey A. Chernov
fe0d5f43c5 Add wall_cmos_clock sysctl variable, needed to manage adjkerntz even for 
UTC cmos clocks (needed for Local Timezone FSes)
 1996-04-05 03:36:31 +00:00
John Dyson
030ad08012 Fixed a problem that the UPAGES of a process were being run down 
in a suboptimal manner.  I had also noticed some panics that appeared
to be at least superficially caused by this problem.  Also, included
are some minor mods to support more general handling of page table page
faulting.  More details in a future commit.
 1996-04-03 05:23:44 +00:00
Marc G. Fournier
f28213ad1d Convert from using devfs_add_devsw() to devfs_add_devswf() 
Fixed Permissions/Ownership in DEVFS to reflect /dev
 1996-04-01 21:02:14 +00:00
David Greenman
909e5e0e77 Change if/goto into a while loop. 1996-03-31 23:00:32 +00:00
Bruce Evans
048cd610ad Finished removing NOP macros. 1996-03-31 04:17:25 +00:00
Bruce Evans
ef9805a3c8 Moved rtcin() to clock.c. 
Always delay using one inb(0x84) after each i/o in rtcin() - don't
do this conditional on the bogus option DUMMY_NOPS not being defined.
If you want an optionally slightly faster rtcin() again, then inline
it and use a better named option or sysctl variable.  It only needs
to be fast in rtcintr().
 1996-03-31 04:05:36 +00:00
Bruce Evans
5d170d7eb8 Killed religous FASTER_NOP again. 1996-03-31 03:31:29 +00:00
Bruce Evans
a680ab7537 Count PCI irqs in up to 4 ISAish counters named `pci irqnn' instead of 
in the clk0 counter.

Reviewed by:	s
 1996-03-29 15:01:51 +00:00
Bruce Evans
78966e20d9 Parenthesized macros. 
Fixed munged tabs.
 1996-03-29 14:14:07 +00:00
Garrett Wollman
28dc3d2757 >Blush<. Use the correct opcode for the WRMSR instruction. 1996-03-28 20:39:45 +00:00
Garrett Wollman
f7ff248201 Teach the disassembler about the 0f,3x family of instructions 
(RDMSR, RDTSC, WRMSR, and RDPMC).
 1996-03-28 20:35:03 +00:00
John Dyson
4e489ec421 Remove a now unnecessary prototype from pmap.c. Also remove now 
unnecessary vm_fault's of page table pages in trap.c.
 1996-03-28 05:40:58 +00:00
John Dyson
208bfdc98b Significant code cleanup, and some performance improvement. Also, 
mlock will now work properly without killing the system.
 1996-03-28 04:59:34 +00:00
Bruce Evans
3dffe3c5f6 Fixed permissions of /devfs/*random. 
Fixed group and permissions of /devfs/perfmon.
 1996-03-27 19:04:55 +00:00
Bruce Evans
ba00d77a82 Print stack pointer and frame pointer in trap messages. 
Fixed "trace/trap" message.

Reviewed by:	davidg
 1996-03-27 17:33:39 +00:00
Bruce Evans
8102fcda9b Eliminated dependency on opt_sysvipc.h. 1996-03-27 17:21:57 +00:00
Bruce Evans
6d72aad8a7 Removed vestiges of dummy frame at top of tmpstk. 
Use alignment macros where appropriate.

Cleaned up #includes.
 1996-03-27 17:16:29 +00:00
Bruce Evans
6003d411e1 Fixed traceback for the following cases: 
- legitimate null frames from idle() (traceback was aborted after a null
  pointer trap)
- second instruction of normal function prologue, and last instruction of
  a function (caller wasn't reported).

Reviewed by:	davidg
 1996-03-27 17:06:03 +00:00
Garrett Wollman
d69e850255 Add support for Pentium and Pentium Pro performance counters. 
(This code is as yet untested; to come after man page is written.)
This also adds inlines to cpufunc.h for the RDTSC, RDMSR, WRMSR, and RDPMC
instructions.  The user-mode interface is via a subdevice of mem.c;
there is also a kernel-size interface which might be used to aid
profiling.
 1996-03-26 19:57:56 +00:00
Nate Williams
cdf642d171 Whoops, back out the last commit, which was accidentally committed at 
the same time as the if_zp cleanup patch.

The commit that occurred was an incomplete patch for APM on my laptop
and needs more work.
 1996-03-23 21:36:03 +00:00
Nate Williams
ada00a4447 Now that ac->ac_ipaddr and arpwhohas() no longer exist, remove the 
ifdef'd out code that used it.
 1996-03-23 21:32:39 +00:00
Jordan K. Hubbard
51fa90c524 Add vx0 device to GENERIC. Yes, I know that this bloats GENERIC, but 
what can we do?
 1996-03-20 10:42:56 +00:00
Nate Williams
8371872e22 Always enable interrupts before calling the APM idle/busy routines. 
Suggested by:	phk@FreeBSD.org
 1996-03-19 04:40:03 +00:00
Jordan K. Hubbard
a732b754b4 Add fe0 to the LINT and GENERIC files (hmmm - looks like my rcvs setup't 
isn't supplying all the proper header info here!  Last commit of fe0
entry should have had the following Submitted by line also).
Submitted-by: Masahiro SEKIGUCHI <seki@sysrap.cs.fujitsu.co.jp>
 1996-03-17 08:39:51 +00:00
John Dyson
3ce8e60f5b Make sure that we pmap_update AFTER modifying the page table entries. 
The P6 can do a serious job of reordering code, and our stuff could
execute incorrectly.
 1996-03-13 00:39:45 +00:00
David Greenman
dc92971788 Killed some historical #define cruft that we've never used in FreeBSD: 
UDOT_SZ
SYSPTSIZE
USRPTSIZE
MSGBUFPTECNT
DMMIN
DMMAX
DMTEXT
USRIOSIZE
VM_PHYS_SIZE
 1996-03-12 15:37:58 +00:00
Nate Williams
44f0e01b25 Removed undocumented an unused APM_SLOWSTART code. 1996-03-12 05:44:25 +00:00
Jordan K. Hubbard
25cf9d99fb Add FAILSAFE option for selecting extra conservativeness when such 
is more practical (like during installation).  Correspondingly, set the
option by default in GENERIC now.
 1996-03-11 18:47:39 +00:00
Jeffrey Hsu
6ad138306c For Lite2: proc LIST changes. 
Reviewed by:	david & bde
 1996-03-11 05:55:56 +00:00
Jeffrey Hsu
375c803b36 Change type of code argument to sendsig from unsigned to u_long to make it 
consistent w/ signalvar.h and kern_sig.c.
Reviewed by:	davidg & bde
 1996-03-11 02:21:42 +00:00
John Dyson
874308f7c2 Improved efficiency in pmap_remove, and also remove some of the pmap_update 
optimizations that were probably incorrect.
 1996-03-10 23:06:00 +00:00
Justin T. Gibbs
58a8ca6a4d Cleanse the SCSI subsystem of its internally defined types 
u_int32, u_int16, u_int8, int32, int16, int8.
	Use the system defined *_t types instead.
 1996-03-10 07:04:48 +00:00