Commit Graph

4217 Commits

Author SHA1 Message Date
Bruce Evans
fe18edae06 Fixed type mismatch for a (low quality interface) function with an arg
of type u_char (break K&R support instead of fixing the interface or
depending on a gcc feature).
1997-08-25 22:23:46 +00:00
Bruce Evans
b9dcd593ff Fixed type mismatches for functions with args of type vm_prot_t and/or
vm_inherit_t.  These types are smaller than ints, so the prototypes
should have used the promoted type (int) to match the old-style function
definitions.  They use just vm_prot_t and/or vm_inherit_t.  This depends
on gcc features to work.  I fixed the definitions since this is easiest.
The correct fix may be to change the small types to u_int, to optimize
for time instead of space.
1997-08-25 22:15:31 +00:00
Bruce Evans
8b6e12e27f Added an XXX comment. 1997-08-25 22:02:22 +00:00
Bruce Evans
56f4ffc582 Removed an unused variable. 1997-08-25 21:57:55 +00:00
Bruce Evans
45e3420bd4 Fixed a pedantic syntax error (case labels without a statement). 1997-08-25 21:56:23 +00:00
Bruce Evans
10a1aa05e8 Finished (?) support for DISABLE_PSE option. 2-3MB of kernel vm was sometimes
wasted.

Fixed type mismatches for functions with vm_prot_t's as args.  vm_prot_t
is u_char, so the prototypes should have used promoteof(u_char) to match
the old-style function definitions.  They use just vm_prot_t.  This depends
on gcc features to work.  I fixed the definitions since this is easiest.
The correct fix may be to change vm_prot_t to u_int, to optimize for time
instead of space.

Removed a stale comment.
1997-08-25 21:53:01 +00:00
Bruce Evans
3faae24ef5 Removed a tautological comment. 1997-08-25 21:31:38 +00:00
Bruce Evans
2a2968a896 Removed a bogus comment. 1997-08-25 21:28:08 +00:00
Steve Passe
047307e09d Eliminate the blocking of INTs while spinning for the safe simplelock. 1997-08-25 21:02:59 +00:00
Peter Wemm
29f886b18b s/.align/.p2align/ so that we get the same results when building elf
objects (the tools are a bit better)
1997-08-25 10:57:38 +00:00
Steve Passe
8ee0110a44 A clean fix for the spl "deadlock before smp_active" problem.
Added a new variable, 'bsp_apic_ready', which is set as soon as the bootstrap
CPU has initialized its local APIC.  Conditionalize the GENSPLR functions
to call ss_lock ONLY after bsp_apic_ready is TRUE;  This should prevent
any problems with races between the time the 1st AP becomes ready and the
time smp_active is set.
1997-08-24 20:33:32 +00:00
Steve Passe
e49f6a7c8d Fix a deadlock caused by one of the spl functions being called before
ss_lock() can run.

Noticed by:	dave adkins <adkin003@gold.tc.umn.edu>
1997-08-24 17:26:37 +00:00
Steve Passe
886e789627 The last of the encapsolation of cpl/spl/ipending things into a critical
region protected by the simplelock 'cpl_lock'.

Notes:

 - this code is currently controlled on a section by section basis with
   defines in machine/param.h.  All sections are currently enabled.

 - this code is not as clean as I would like, but that can wait till later.

 - the "giant lock" still surrounds most instances of this "cpl region".
   I still have to do the code that arbitrates setting cpl between the
   top and bottom halves of the kernel.

 - the possibility of deadlock exists, I am committing the code at this
   point so as to exercise it and detect any such cases B4 the "giant lock"
   is removed.
1997-08-24 00:05:37 +00:00
Steve Price
1e915c361e Remove extraneous init parameter.
PR:		kern/3595
Submitted by:	Chiharu Shibata <chi@rd.njk.co.jp>
1997-08-23 23:38:12 +00:00
Justin T. Gibbs
b13364fea8 Change restart_sequencer to be more robust by performing an explicit
pause before attempting to reset the sequencer address.  Remove the
loop checking to see if the address has gone to zero since it is
unnecessary

Adjust the abort SCB timeouts back up to 2 seconds where they should
be.

Fix an oversight in the removal of the bus reset settle code where
we might not run the queue of completed commands.

Remove an unecessary call to ahc_run_done_queue in ahc_reset_current_bus.

Submitted by:	Tor Egge <Tor.Egge@idi.ntnu.no>
1997-08-21 21:23:21 +00:00
Bruce Evans
b1037dcd53 #include <machine/limits.h> explicitly in the few places that it is required. 1997-08-21 20:33:42 +00:00
Bruce Evans
d7fde192a6 Staticized. 1997-08-21 19:56:40 +00:00
Bruce Evans
e0b2119fcf Police 4.4Lite #include style. 1997-08-21 19:55:49 +00:00
Bruce Evans
7d204e555f Removed unused definition. 1997-08-21 19:46:13 +00:00
Steve Passe
e6b54a1659 Get le_intr decl from sys/conf.h 1997-08-21 09:01:00 +00:00
Steve Passe
e59a7e77e2 Forward declaration for the intr routine, avoids compiler warning. 1997-08-21 07:55:10 +00:00
Steve Passe
21197eb230 Add several casts and include several header files to eliminate compiler
warnings.
1997-08-21 07:36:44 +00:00
Philippe Charnier
40d5099441 Revert my previous commit about using CS_SECURE macro.
Requested by:	Bruce.
1997-08-21 06:33:04 +00:00
Steve Passe
f2cf811ca6 Fixed a warning about undefined isa_irq_pending(). (UP kernel only) 1997-08-21 06:16:12 +00:00
Steve Passe
b3e4e390f6 Moved the COM_LOCK and COM_UNLOCK macros to machine/param.h. 1997-08-21 05:47:25 +00:00
Steve Passe
201ef2f3f3 Another boo-boo, this file defines cil. 1997-08-21 05:19:26 +00:00
Steve Passe
fcdf862cca Oops, this should have been in last commit.
Adds variable cil: current INTerrupt level.  This is part of the new
MP-safe spl algorithm.
1997-08-21 05:15:08 +00:00
Steve Passe
4a73d99f7e Made PEND_INTS default.
Made NEW_STRATEGY default.
Removed misc. old cruft.

Centralized simple locks into mp_machdep.c
Centralized simple lock macros into param.h

More cleanup in the direction of making splxx()/cpl MP-safe.
1997-08-21 05:08:25 +00:00
Jonathan Lemon
939829795a Add forward declaration for struct proc. 1997-08-20 19:57:24 +00:00
Steve Passe
a2c1225d0e Attempt to make cy.c MP-safe.
I have no way of testing this one, first SMP/cy user please let me know...
It is my belief that sio and cy are the only FAST_INTR() ISRs.  If this
is a bad assumption please educate me.
1997-08-20 06:16:44 +00:00
Steve Passe
7b185ef809 Preperation for moving cpl into critical region access.
Several new fine-grained locks.
New FAST_INTR() methods:
 - separate simplelock for FAST_INTR, no more giant lock.
 - FAST_INTR()s no longer checks ipending on way out of ISR.
sio made MP-safe (I hope).
1997-08-20 05:25:48 +00:00
Steve Passe
5996461961 Preperation for moving cpl into critical region access.
Several new fine-grained locks.
Control of new FAST_INTR() methods.
1997-08-20 05:22:33 +00:00
Peter Wemm
89327d27f7 Mention PPP_DEFLATE and PPP_BSDCOMP for kernel ppp. 1997-08-19 17:11:35 +00:00
Philippe Charnier
15f3549108 Use CS_SECURE macro.
Reviewed by:	John Dyson
1997-08-18 06:58:59 +00:00
Steve Passe
75d23f5f87 Turn on the lockmanager by default for SMP.
Reviewed by:	"John S. Dyson" <toor@dyson.iquest.net>
1997-08-18 05:34:01 +00:00
Steve Passe
7e48002a92 Removed volatile from arg to simple_lock & friends. 1997-08-18 03:35:59 +00:00
Jun-ichiro itojun Hagino
769b999aee To handle scsi RESERVATION CONFLICT properly in ahc driver.
Could somebody please update other drivers so that SCSI_RSVD (0x18)
to be handled just like SCSI_BUSY(0x08)?

There's no need for extra state, so we use XS_BUSY for SCSI_RSVD too.

PR:		4257
1997-08-17 14:04:08 +00:00
Garrett Wollman
57bf258e3d Fix all areas of the system (or at least all those in LINT) to avoid storing
socket addresses in mbufs.  (Socket buffers are the one exception.)  A number
of kernel APIs needed to get fixed in order to make this happen.  Also,
fix three protocol families which kept PCBs in mbufs to not malloc them
instead.  Delete some old compatibility cruft while we're at it, and add
some new routines in the in_cksum family.
1997-08-16 19:16:27 +00:00
Mike Smith
3a6424f6be Add the 'ppc' ISA-bus parallel-port chipset driver. 1997-08-16 14:19:43 +00:00
Mike Smith
49975ec268 Assign character major 82 to the 'ppi' Generic Parallel Port I/O device. 1997-08-16 14:15:40 +00:00
Mike Smith
cc11e361c3 Minor ppc_data structure tweak.
Submitted by:	Nicolas Souchu <Nicolas.Souchu@prism.uvsq.fr>
1997-08-16 14:07:26 +00:00
Justin T. Gibbs
b6e49ed332 Remove the bus settle delay after reset code. It could cause an infinite
loop.

Perform a "-Wall" cleanup which actually exposed two real bugs having to
do with operator precedence.
1997-08-15 19:27:43 +00:00
Steve Passe
b5cdece0a9 The promised "better fix" for "Trap 9 When Boot SMP" problem.
We now tsleep() in kthread_init() between start_init()
and prepare_usermode() while waiting for ALL the idle_loop()
processes to come online.

Debugged & tested by:   "Thomas D. Dean" <tomdean@ix.netcom.com>

Reviewed by:    David Greenman <dg@root.com>
1997-08-15 02:34:32 +00:00
Mike Smith
ab4c624ba4 Add support for the new Parallel-Port Bus and devices thereon.
Submitted by:	Nicolas Souchu <Nicolas.Souchu@prism.uvsq.fr>
1997-08-14 14:03:27 +00:00
Mike Smith
676465394a ISA Parallel-Port Bus chipset driver.
Submitted by:	Nicolas Souchu <Nicolas.Souchu@prism.uvsq.fr>
1997-08-14 14:01:36 +00:00
Jordan K. Hubbard
56ed81f738 Reserve major 81 for rocketport driver. 1997-08-13 21:01:30 +00:00
Justin T. Gibbs
083bc8b2cc Add a spin lock that prevents the sequencer from attempting to add an
entry to the QOUTFIFO when it is full.  This should eliminate the
"Timed out while idle" problems that many have reported.

In truth, this is somewhat of a hack.  Although are interrupt latency is
low enough that we should be able to always service the queue in time,
since each entry must be passed up to the higher SCSI layer for what can
be a large amount of processing (perhaps even resulting in a new command
being queued) with interrupts disabled, we need this mechanism to avoid
overflow.  In the future, these additional tasks will be offloaded to a
software interrupt handler which should make this hack unnecessary.
1997-08-13 17:02:47 +00:00
Steve Price
1393383a2e Add parentheses because == has higher precedence than &.
PR:		i386/4225
Submitted by:	Frank MacLachlan <fpm@n2.net>
1997-08-13 02:40:06 +00:00
John Dyson
0b6e0f74f9 Back out a part of the disk scheduling "improvements" :-(. Let me know
how the system works now!!!
1997-08-12 19:07:42 +00:00
Jordan K. Hubbard
74875cc69f Make the CLI mode message a little less intimidating.
Suggested by:	Richard Underwood <ru@atticus.com>
1997-08-11 09:44:57 +00:00