Commit Graph

1270 Commits

Author SHA1 Message Date
Poul-Henning Kamp
daf9092bcd Don't disable the TSC with statclock_disable. 2003-11-13 10:02:12 +00:00
Seigo Tanimura
512824f8f7 - Implement selwakeuppri() which allows raising the priority of a
thread being waken up.  The thread waken up can run at a priority as
  high as after tsleep().

- Replace selwakeup()s with selwakeuppri()s and pass appropriate
  priorities.

- Add cv_broadcastpri() which raises the priority of the broadcast
  threads.  Used by selwakeuppri() if collision occurs.

Not objected in:	-arch, -current
2003-11-09 09:17:26 +00:00
John Baldwin
6f92bdd0c1 New APIC support code:
- The apic interrupt entry points have been rewritten so that each entry
  point can serve 32 different vectors.  When the entry is executed, it
  uses one of the 32-bit ISR registers to determine which vector in its
  assigned range was triggered.  Thus, the apic code can support 159
  different interrupt vectors with only 5 entry points.
- We now always to disable the local APIC to work around an errata in
  certain PPros and then re-enable it again if we decide to use the APICs
  to route interrupts.
- We no longer map IO APICs or local APICs using special page table
  entries.  Instead, we just use pmap_mapdev().  We also no longer
  export the virtual address of the local APIC as a global symbol to
  the rest of the system, but only in local_apic.c.  To aid this, the
  APIC ID of each CPU is exported as a per-CPU variable.
- Interrupt sources are provided for each intpin on each IO APIC.
  Currently, each source is given a unique interrupt vector meaning that
  PCI interrupts are not shared on most machines with an I/O APIC.
  That mapping for interrupt sources to interrupt vectors is up to the
  APIC enumerator driver however.
- We no longer probe to see if we need to use mixed mode to route IRQ 0,
  instead we always use mixed mode to route IRQ 0 for now.  This can be
  disabled via the 'NO_MIXED_MODE' kernel option.
- The npx(4) driver now always probes to see if a built-in FPU is present
  since this test can now be performed with the new APIC code.  However,
  an SMP kernel will panic if there is more than one CPU and a built-in
  FPU is not found.
- PCI interrupts are now properly routed when using APICs to route
  interrupts, so remove the hack to psuedo-route interrupts when the
  intpin register was read.
- The apic.h header was moved to apicreg.h and a new apicvar.h header
  that declares the APIs used by the new APIC code was added.
2003-11-03 21:53:38 +00:00
Nate Lawson
e8c321c92f Fix a panic that occurs when resuming. For some reason, sc->cur_scp is
NULL.

Submitted by:	Andrew Thompson <andy@fud.org.nz>
2003-10-29 20:48:13 +00:00
Peter Wemm
042093540c Look at the equipment list for amd64 as well as i386 for autodetecting
floppy drives in the absence of hints.
2003-10-23 05:52:52 +00:00
Poul-Henning Kamp
b52b7f465d Eliminate use bio_blkno. 2003-10-18 17:51:26 +00:00
Poul-Henning Kamp
4866f95d76 Change fb_attach() and fb_detach() to take a integer unit number rather
than a dev_t.

All of the dev_t's passed were bogusly created with makedev()
2003-09-26 10:41:44 +00:00
Warner Losh
00dc18b5a8 Per TRB vote: restore the aquire_timer0 and associated goo. This will
be gone in FreeBSD 6, so put BURN_BRIDGES around it.  The TRB also
felt that if something better comes along sooner, it can be used to
replace this code.

Delayed by: BSDcon and subsequent disk crash.
2003-09-24 15:33:33 +00:00
Poul-Henning Kamp
a2f19df9cc Pick up softc from dev_t rathern than through newbus gymnastics. 2003-09-17 07:40:00 +00:00
Poul-Henning Kamp
f967c4f96e Since it is static these days, there is no reason to uppercase the
first letter of fdopen() to avoid nameclashing with other stuff.
2003-09-17 07:21:20 +00:00
Poul-Henning Kamp
0c7721e8f9 Disable the use of cloning use in floppy and CD drivers.
This commit puts the relevant code snippets under #ifdef GONE_IN_5
(rather than #ifndef BURN_BRIDGES) thereby disabling the code now.

The code wil be entirely removed before 5.2 unless we find reasons
why this would be a bad idea.

Approach suggested by:	imp
2003-09-11 19:27:24 +00:00
Bruce Evans
4df0520624 clock.c:
Quick fix for calling DELAY() for ddb input in some (atkbd-based)
console drivers.  ddb must not use any normal locks, but DELAY()
normally calls getit() which needs clock_lock.  One problem with using
normal locks in ddb is that deadlock is possible, but deadlock on
clock_lock is unlikely becaluse clock_lock is bogusly recursive,
apparently just to hide the problem of ddb using it.  The i8254 clock
hardware has mostly write-only registers so it is important for it to
use a lock that gives exclusive access.  (atkbd hardware is also
unfriendly to reentrant software but that problem is more local and
already solved.)  I mostly saw the symptoms of the bug caused by
unlocking in getit() running cpu_unpend().  cpu_unpend() should not
be called while in ddb and Debugger() calls for failing assertions
about this caused a breakpoint within ddb.

ddb must also not call getit() because ddb may be being used to step
through clock initialization code that has stopped or otherwise mangled
the clock.  If the clock is stopped, then getit() always returns the
same value and DELAY() takes forever if it trusts getit().

The quick fix is implement DELAY(n) as (n * timer_freq / 1000000)
inb(0x84)'s if ddb is active.

machdep.c:
Don't permit recursion on clock_lock.
2003-09-07 14:23:08 +00:00
Peter Wemm
b324e86370 Clean up some antique stuff. We do not support Weitek FPUs etc, and never
did.
2003-09-05 14:54:26 +00:00
Poul-Henning Kamp
7837155fa2 Put the device cloning functions for disk-drivers under #ifndef BURN_BRIDGES.
For the floppy driver, use fdcontrol to manipulate density selection.

For the CD drivers, the 'a' and 'c' suffix is without actual effect and
any applications insisting on it can be satisfied with a symlink:
	ln -s /dev/cd0 /dev/cd0a

Ongoing discussion may result in these pieces of code being removed before
the 5-stable branch as opposed to after.
2003-09-05 10:40:16 +00:00
Poul-Henning Kamp
78a49a45bc Give timecounters a numeric quality field.
A timecounter will be selected when registered if its quality is
not negative and no less than the current timecounters.

Add a sysctl to report all available timecounters and their qualities.

Give the dummy timecounter a solid negative quality of minus a million.

Give the i8254 zero and the ACPI 1000.

The TSC gets 800, unless APM or SMP forces it negative.

Other timecounters default to zero quality and thereby retain current
selection behaviour.
2003-08-16 08:23:53 +00:00
Poul-Henning Kamp
8dcee923b5 remove acquire_timer0() and release_timer0() and related stuff. 2003-08-15 15:50:49 +00:00
Poul-Henning Kamp
2fbc275447 Dont initialize a TSC timecounter until we know if it is broken or not. 2003-08-06 15:05:27 +00:00
Doug Ambrisko
a373227418 Add printer support to puc(4) driver.
-	Move isa/ppc* to sys/dev/ppc (repo-copy)
      -	Add an attachment method to ppc for puc
      -	In puc we need to walk the chain of parents.
Still to do, is to make ppc(4) & puc(4) work on other platforms.  Testers
wanted.

PR:		38372 (in spirit done differently)
Verified by:	Make universe (if I messed up a platform please fix)
2003-08-01 02:25:32 +00:00
Mike Heffner
e0c22597cb Add support for the A4 Tech RFSW-35 mouse wheel. Probe is similar to
4D Plus.

PR:		44333
2003-07-12 18:36:04 +00:00
John Baldwin
c37faf267c - Make the isab devclass global to allow for multiple ISA bridge drivers.
- Factor out code common to all ISA bridge drivers attach methods into a
  isab_attach() function.
- Rename the PCI-ISA bridge driver's attach function to pci_isab_attach()
  and have it call isab_attach().
2003-07-08 18:56:58 +00:00
Mike Heffner
b1181a94a3 Reset the PSM aux device twice to help pierce through some KVM's to
get the correct data from the attached mouse. Multiple resets should
be harmless, but just in case, the second one is non-fatal and is just
ignored.
2003-07-07 05:40:13 +00:00
John Baldwin
8a9bc9c03b - Use the new resource_disabled() helper function to see if devices are
disabled.
- Change the apm driver to match the acpi driver's behavior by checking to
  see if the device is disabled in the identify routine instead of in the
  probe routine.  This way if the device is disabled it is never created.

Note that a few places (ips(4), Alpha SMP) used "disable" instead of
"disabled" for their hint names, and these hints must be changed to
"disabled".  If this is a big problem, resource_disabled() can always be
changed to honor both names.
2003-07-02 16:09:02 +00:00
Mike Heffner
6d1c16554d Add PnP PS/2 id for Dell Latitude X200.
PR:		48516
MFC after:	2 weeks
2003-07-01 14:41:16 +00:00
Yaroslav Tykhiy
62cc1e0584 Force media autodetection if the device has lost its parameter table.
Previously, any normal I/O on an fdc(4) device would fail with ENXIO
if the device had been opened in non-blocking mode and then closed
prior to the conventional access; that would last until the floppy
disk was ejected and re-inserted to raise the unit attention condition.

Add a clarifying comment.
2003-06-16 08:42:20 +00:00
Yaroslav Tykhiy
f79981aca8 If in non-blocking mode, return EAGAIN instead of ENXIO
on an I/O attempt.  This is needed for consistency with
the concept of the half-opened state of fdc(4).

PR:		kern/52338
2003-06-16 07:50:17 +00:00
Yaroslav Tykhiy
83efe35a66 Always set bio_resid properly in fdstrategy(),
as should every block device strategy routine.
There was at least one evil consequence of not doing so:
Some errors returned by fdstrategy() could be lost (EAGAIN,
in particular.)

PR:		kern/52338 (in the audit-trail)
Discussed with:	bde
2003-06-15 18:13:17 +00:00
Yaroslav Tykhiy
29ec21d1e3 Check whether the floppy type pointer has been set before trying
to access floppy parameters through it.

Note: The DIOCGSECTORSIZE and DIOCGMEDIASIZE handlers withing
fdioctl() couldn't be just moved to below the existing check
for blocking mode because fd->ft can be non-NULL while still
in non-blocking mode (fd->ft can be set with the FD_STYPE ioctl.)

PR:		kern/52338
No MFC:		Not applicable to STABLE
2003-06-15 16:18:58 +00:00
David E. O'Brien
8c9bbf484a Use __FBSDID(). 2003-06-11 00:34:37 +00:00
David E. O'Brien
006124d811 Use __FBSDID(). 2003-06-02 16:32:55 +00:00
Poul-Henning Kamp
a3e7d3f16f wrap macro in do {...} while(0) 2003-05-31 21:11:51 +00:00
Poul-Henning Kamp
670966596b Remove unused variable(s).
Found by:       FlexeLint
2003-05-31 20:29:34 +00:00
Poul-Henning Kamp
7d4220518e Remove break after return;
Found by:       FlexeLint
2003-05-31 20:24:30 +00:00
Poul-Henning Kamp
9a3454805e Don't rely on boolean expression evaluating to 1 or 0 by default.
Found by:       FlexeLint
2003-05-31 20:23:46 +00:00
Poul-Henning Kamp
30f5ad0faf Remove unused variable(s).
Mark a non-critical memoryleak with XXX comment

Found by:       FlexeLint
2003-05-31 20:21:53 +00:00
Poul-Henning Kamp
c7b24d7dcd Remove unused variable.
Found by:       FlexeLint
2003-05-31 18:45:32 +00:00
Poul-Henning Kamp
9d4b1fa40e Remove extra ';'
Found by:       FlexeLint
2003-05-31 18:37:30 +00:00
Peter Wemm
33a9fd010d Only use the pc bios stuff on i386's. I think this might even be unused
there too.
2003-05-01 04:23:15 +00:00
Peter Wemm
0eb8d2e84a Create a 'legacy' node for AMD64 as well as i386. While we'll never
have to use it since all AMD64 machines are supposed to have acpi etc,
I'm using it during development so I can avoid the acpi code for now.
Yes, this is cheating.
2003-04-30 21:41:41 +00:00
Mark Murray
51da11a27a Fix some easy, global, lint warnings. In most cases, this means
making some local variables static. In a couple of cases, this means
removing an unused variable.
2003-04-30 12:57:40 +00:00
Alexander Kabaev
104a9b7e3e Deprecate machine/limits.h in favor of new sys/limits.h.
Change all in-tree consumers to include <sys/limits.h>

Discussed on:	standards@
Partially submitted by: Craig Rodrigues <rodrigc@attbi.com>
2003-04-29 13:36:06 +00:00
Matthew N. Dodd
f7130d0977 Add a module version number. 2003-04-15 04:19:49 +00:00
Poul-Henning Kamp
891619a66d Use bioq_flush() to drain a bio queue with a specific error code.
Retain the mistake of not updating the devstat API for now.

Spell bioq_disksort() consistently with the remaining bioq_*().

#include <geom/geom_disk.h> where this is more appropriate.
2003-04-01 15:06:26 +00:00
Matthew N. Dodd
adbc4f03a6 Correct an argument to bus_alloc_resource(). 2003-03-25 04:34:33 +00:00
Jake Burkholder
227f9a1c58 - Add vm_paddr_t, a physical address type. This is required for systems
where physical addresses larger than virtual addresses, such as i386s
  with PAE.
- Use this to represent physical addresses in the MI vm system and in the
  i386 pmap code.  This also changes the paddr parameter to d_mmap_t.
- Fix printf formats to handle physical addresses >4G in the i386 memory
  detection code, and due to kvtop returning vm_paddr_t instead of u_long.

Note that this is a name change only; vm_paddr_t is still the same as
vm_offset_t on all currently supported platforms.

Sponsored by:	DARPA, Network Associates Laboratories
Discussed with:	re, phk (cdevsw change)
2003-03-25 00:07:06 +00:00
Matthew N. Dodd
b7b5ae3edb Use repo-copied files in sys/i386/bios. 2003-03-24 19:14:46 +00:00
Poul-Henning Kamp
b4b138c27f Including <sys/stdint.h> is (almost?) universally only to be able to use
%j in printfs, so put a newsted include in <sys/systm.h> where the printf
prototype lives and save everybody else the trouble.
2003-03-18 08:45:25 +00:00
Poul-Henning Kamp
8595de4aec Fix a malloc() with no legal modeflag. 2003-03-17 07:26:25 +00:00
Poul-Henning Kamp
1ecc485c1b Call devstat_start_transaction_bio() instead of devstat_start_transaction() 2003-03-15 10:50:44 +00:00
Poul-Henning Kamp
8098046099 Allocate the devstat structure with devstat_new_entry(). 2003-03-08 21:32:59 +00:00
Poul-Henning Kamp
7ac40f5f59 Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00