Commit Graph

3596 Commits

Author SHA1 Message Date
Sam Leffler
937003c8b0 kill unused value
Noticed by:	Coverity Prevent analysis tool
2005-02-25 23:06:25 +00:00
Warner Losh
2f3ed70a98 Forced commit after moving mb86960.h from i386/isa/ic to dev/fe. It
is only used by the fe driver, and isn't MD.
2005-02-20 19:33:13 +00:00
John Baldwin
e8ce55117b Use the local APIC timer to drive the various kernel clocks on SMP machines
rather than forwarding interrupts from the clock devices around using IPIs:
- Add an IDT vector that pushes a clock frame and calls
  lapic_handle_timer().
- Add functions to program the local APIC timer including setting the
  divisor, and setting up the timer to either down a periodic countdown
  or one-shot countdown.
- Add a lapic_setup_clock() function that the BSP calls from
  cpu_init_clocks() to setup the local APIC timer if it is going to be
  used.  The setup uses a one-shot countdown to calibrate the timer.  We
  then program the timer on each CPU to fire at a frequency of hz * 3.
  stathz is defined as freq / 23 (hz * 3 / 23), and profhz is defined as
  freq / 2 (hz * 3 / 2).  This gives the clocks relatively prime divisors
  while keeping a low LCM for the frequency of the clock interrupts.
  Thanks to Peter Jeremy for suggesting this approach.
- Remove the hardclock and statclock forwarding code including the two
  associated IPIs.  The bitmap IPI handler has now effectively degenerated
  to just IPI_AST.
- When the local APIC timer is used we don't turn the RTC on at all, but
  we still enable interrupts on the ISA timer 0 (i8254) for timecounting
  purposes.
2005-02-08 20:25:07 +00:00
Poul-Henning Kamp
0c3c54da63 Since we are quite unlikely to ever face another platform which
uses the i8237 without trying to emulate the PC architecture move
the register definitions for the i8237 chip into the central include
file for the chip, except for the PC98 case which is magic.

Add new isa_dmatc() function which tells us as cheaply as possible
if the terminal count has been reached for a given channel.
2005-02-06 13:46:39 +00:00
John Baldwin
aa96fcdb61 Anytime we write to the RTC's status B register to possibly enable
interrupts, read from the interrupt status register to clear any pending
interrupts.  Otherwise in some rare cases the RTC would never fire any
interrupts as it constantly thinks it has an interrupt pending.

PR:		i386/17800
PR:		kern/76776
Submitted by:	Jose M. Alcaide jose at we dot lc dot ehu dot es
MFC after:	2 weeks
2005-02-03 19:06:03 +00:00
John Baldwin
42f0ddd465 Tweak the ELCR support slightly. Explicitly probe the ELCR during boot
instead of burying that in the atpic(4) code as atpic(4) is not the only
user of elcr(4).  Change the elcr(4) code to export a global elcr_found
variable that other code can check to see if a valid ELCR was found.

MFC after:	1 month
2005-01-18 20:24:47 +00:00
Warner Losh
86cb007f9f /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
Warner Losh
812fb8f294 Get rid of #ifdef for legacy system. Move that into the MD code.
Export minimal symbols to allow this to happen.
2004-12-24 23:03:17 +00:00
Warner Losh
6c5c0a5ac1 Separate mse driver into a core driver and a bus attachments. Separate out
the ISA and CBUS (called isa on pc98) attachments.  Eliminate all PC98
ifdefs in the process (the driver in pc98/pc98/mse.c was a copy of the one
in i386/isa/mse.c with PC98 ifdefs).  Create a module for this driver.

I've tested this my PC-9821RaS40 with moused.  I've not tested this on i386
because I have no InPort cards, or similar such things.  NEC standardized
on bus mice very early, long before ps/2 mice ports apeared, so all PC-98
machines supported by FreeBSD/pc98 have bus mice, I believe.

Reviewed by: nyan-san
2004-12-12 20:05:50 +00:00
David Schultz
6004362e66 Don't include sys/user.h merely for its side-effect of recursively
including other headers.
2004-11-27 06:51:39 +00:00
Warner Losh
c8c8f27a5d pbio has moved to dev/pbio
Prodded by: peter
2004-11-11 04:53:46 +00:00
Poul-Henning Kamp
95bc568977 Add new function ttyinitmode() which sets our systemwide default
modes on a tty structure.

Both the ".init" and the current settings are initialized allowing
the function to be used both at attach and open time.

The function takes an argument to decide if echoing should be enabled.
Echoing should not be enabled for regular physical serial ports
unless they are consoles, in which case they should be configured
by ttyconsolemode() instead.

Use the new function throughout.
2004-10-18 21:51:27 +00:00
Nate Lawson
ccd582b0fd Let nexus print our flags for us. Also, clean up an obfuscated if stmt. 2004-10-14 22:37:51 +00:00
Nate Lawson
e5979322ba Remove local hacks to set flags now that the device probe does this for us.
Tested on every device except sio_pci and the pc98 fd.c.  Perhaps something
similar should be done for the "disabled" hints also.

MFC after:	2 weeks
2004-10-14 22:21:59 +00:00
Warner Losh
905454c86c Fix conflicts I didn't fix before I committed my busspace changes.
Noticed by: ru@ (and likely tinderbox, I haven't checked)
2004-10-11 00:58:24 +00:00
Warner Losh
ac00fac23a Convert to newbus. (chances are we could now move this to dev/pbio
since I believe it is now MI, but that hasn't been done yet).

Reviewed by: dds
2004-10-10 03:26:20 +00:00
David E. O'Brien
3b33d41dc2 style(9) 2004-10-09 08:31:21 +00:00
Warner Losh
bacb482d94 Port pbio to HEAD.
OK'd by: dds
2004-10-07 16:21:03 +00:00
Poul-Henning Kamp
7ce1979be6 Add new a function isa_dma_init() which returns an errno when it fails
and which takes a M_WAITOK/M_NOWAIT flag argument.

Add compatibility isa_dmainit() macro which whines loudly if
isa_dma_init() fails.

Problem uncovered by:	tegge
2004-09-15 12:09:50 +00:00
Poul-Henning Kamp
5757a0b985 Remove now unused #include files. 2004-09-15 12:02:35 +00:00
Scott Long
5ba0615c03 Optimize intr_execute_handlers() by combining the pic_disable_source() and
pic_eoi_source() into one call.  This halves the number of spinlock operations
and indirect function calls in the normal case of handling a normal (ithread)
interrupt.  Optimize the atpic and ioapic drivers to use inlines where
appropriate in supporting the intr_execute_handlers() change.

This knocks 900ns, or roughly 1350 cycles, off of the time spent servicing an
interrupt in the common case on my 1.5GHz P4 uniprocessor system.  SMP systems
likely won't see as much of a gain due to the ioapic being more efficient than
the atpic.  I'll investigate porting this to amd64 soon.

Reviewed by:	jhb
2004-08-02 15:31:10 +00:00
Poul-Henning Kamp
672c05d49c Preparation commit for the tty cleanups that will follow in the near
future:

rename ttyopen() -> tty_open() and ttyclose() -> tty_close().

We need the ttyopen() and ttyclose() for the new generic cdevsw
functions for tty devices in order to have consistent naming.
2004-07-15 20:47:41 +00:00
Poul-Henning Kamp
3e019deaed Do a pass over all modules in the kernel and make them return EOPNOTSUPP
for unknown events.

A number of modules return EINVAL in this instance, and I have left
those alone for now and instead taught MOD_QUIESCE to accept this
as "didn't do anything".
2004-07-15 08:26:07 +00:00
Marcel Moolenaar
45cfc0a914 Partially revert previous commit. Calling getit() unconditionally fixed
a problem that could also be fixed differently without reverting previous
attempts to fix DELAY while the debugger is active (rev 1.204). The bug
was that the i8254 implements a countdown timer, while for (k)db_active
a countup timer was implemented. This resulted in premature termination
and consequently the breakage of DELAY. The fix (relative to rev 1.211)
is to implement a countdown timer for the kdb_active case. As such the
ability to step clock initialization is preserved and DELAY does what is
expected of it.

Blushed: bde :-)
Submitted by: bde
2004-07-11 17:50:59 +00:00
Marcel Moolenaar
7f46949fdf Call getit() unconditionally and only grab clock_lock when the
debugger is not active. The fixes breakages of DELAY() when
running in the debugger, because not calling getit() when the
debugger is active yields a DELAY that doesn't.
2004-07-10 22:16:18 +00:00
Marcel Moolenaar
89cf7c254d Update for the KDB framework:
o  Make debugging code conditional upon KDB instead of DDB.
o  Call kdb_enter() instead of Debugger().
o  Remove local (static) variable in_debugger. Use kdb_active instead.
2004-07-10 21:24:36 +00:00
Poul-Henning Kamp
91ea86d7e8 Something funny happened on the way to the floppy driver today...
When two drivers share an ISA DMA channel, they both call isa_dmainit()
and the second call fails if DIAGNOSTIC is on.

If isa_dmainit() was already called successfully, just return silently.

This only works if both drivers agree on the bounce buffer size,
but since sharing DMA is usually only possible on very special
hardware and then typically only for devices of the same type (which
would have multiple instances of the same device driver), this is
not a problem in practice.
2004-07-05 20:37:42 +00:00
Warner Losh
c928d0b956 Remove now obsolete port assignments and sizes. These more properly
belong in the respective drivers.  I've not removed ALL of them, as a
few still haven't moved.  I've just removed the ones that aren't used.

# these can be removed from amd64, but I'm having issues getting to
# sledge at the moment for a build.
2004-07-05 18:39:30 +00:00
Warner Losh
8b68b82381 Don't define __RMAN_RESOURCE_VISISBLE. They aren't needed here after
I've converted the direct accessing of struct resource members to the
preferred interface.
2004-07-03 20:11:49 +00:00
Yoshihiro Takahashi
7f1fb91a0a This needs __RMAN_RESOURCE_VISIBLE if PC98 is defined. 2004-07-01 09:36:31 +00:00
John Baldwin
39981fed82 Trim a few things from the dmesg output and stick them under bootverbose to
cut down on the clutter including PCI interrupt routing, MTRR, pcibios,
etc.

Discussed with:	USENIX Cabal
2004-07-01 07:46:29 +00:00
Bruce Evans
6ed979574f Clear any pending exceptions before using frstor (in the non-FXSR case)
in npxsetregs() too.  npxsetregs() must overwrite the previous state, and
it is never paired with an npxgetregs() that would defuse the previous
state (since npxgetregs() would have fninit'ed the state, leaving nothing
to do).

PR:		68058 (this should complete the fix)
Tested by:	Simon Barner <barner@in.tum.de>
2004-06-19 22:24:16 +00:00
Bruce Evans
bd1a3f1a7e Fixed a panic caused by over-optimizing npxdrop() in the non-FXSR case.
frstor can trap despite it being a control instruction, since it bogusly
checks for pending exceptions in the state that it is overwriting.
This used to be a non-problem because frstor was always paired with a
previous fnsave, and fnsave does an implicit fninit so any pending
exceptions only remain live in the saved state.  Now frstor is sometimes
paired with npxdrop() and we must do a little more than just forget
that the npx was used in npxdrop() to avoid a trap later.  This is a
non-problem in the FXSR case because fxrstor doesn't do the bogus check.

FXSR is part of SSE, and npxdrop() is only in FreeBSD-5.x, so this bug
only affected old machines running FreeBSD-5.x.

PR:		68058
2004-06-18 02:10:55 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
John Baldwin
092a5c4530 Remove atdevbase and replace it's remaining uses with direct references to
KERNBASE instead.
2004-06-10 20:31:00 +00:00
Bruce Evans
bed16055e7 Fixed misclassification of npx interrupts caused by npx_probe().
Dividing by 0 in order to check for irq13/exception16 delivery apparently
always causes an irq13 even if we have configured for exception16 (by
setting CR0_NE).  This was expected, but the timing of the irq13 was
unexpected.  Without CR0_NE, the irq13 is delivered synchronously at
least on my test machine, but with CR0_NE it is delivered a little
later (about 250 nsec) in PIC mode and much later (5000-10000 nsec)
in APIC mode.  So especially in APIC mode, the irq13 may arrive after
it is supposed to be shut down.  It should then be masked, but the
shutdown is incomplete, so the irq goes to a null handler that just
reports it as stray.  The fix is to wait a bit after dividing by 0 to
give a good chance of the irq13 being handled by its proper handler.

Removed the hack that was supposed to recover from the incomplete shutdown
of irq13.  The shutdown is now even more incomplete, or perhaps just
incomplete in a different way, but the hack now has no effect because
irq13 is edge triggered and handling of edge triggered interrupts is
now optimized by skipping their masking.  The hack only worked due
to it accidentally not losing races.

The incomplete shutdown of irq13 still allows unprivileged users to
generate a stray irq13 (except on systems where irq13 is actually used)
by unmasking an npx exception and causing one.  The exception gets
handled properly by the exception 16 handler.  A spurious irq13 is
delivered asynchronously but is harmless (as in the probe) because it
is almost perfectly not handled by the null interrupt handler.
Perfectly not handling it involves mainly not resetting the npx busy
latch.  This prevents further irq13's despite them not being masked in
the [A]PIC.
2004-06-06 15:17:44 +00:00
Poul-Henning Kamp
fe3ec6224a Manual edits to change linesw[]-frobbing to ttyld_*() calls. 2004-06-04 20:04:52 +00:00
Poul-Henning Kamp
2140d01b27 Machine generated patch which changes linedisc calls from accessing
linesw[] directly to using the ttyld...() functions

The ttyld...() functions ar inline so there is no performance hit.
2004-06-04 16:02:56 +00:00
Poul-Henning Kamp
9130089b9d Use ttymalloc() instead of ttyregister(). 2004-06-04 07:12:45 +00:00
Poul-Henning Kamp
138fbf675a Gainfully employ the new ttyioctl in the trivial cases. 2004-06-01 13:49:28 +00:00
Poul-Henning Kamp
77409fe148 Add missing #include <sys/module.h> 2004-05-30 20:34:58 +00:00
Poul-Henning Kamp
41ee9f1c69 Add some missing <sys/module.h> includes which are masked by the
one on death-row in <sys/kernel.h>
2004-05-30 17:57:46 +00:00
Bruce Evans
026afdcc05 Quick fix for overflow when tsc_freq >= 2^31. "int profrate" in struct
gmon and struct gmonhdr was originally just to represent the kernel
(profiling) clock frequency and it remains poorly suited to representing
the frequencies of fast counters like the TSC.  It broke a year or two
ago.  This quick fix keeps it working for another year or month or two
until TSC frequencies can exceed 2^32, by dividing the frequency by 2.
Dividing the frequency by 4 would work for a little longer but would
lose a little too much precision.
2004-05-26 09:43:38 +00:00
Bruce Evans
30346936cf MFamd64:
Fixed profiling of trap, syscall and interrupt handlers and some
ordinary functions, essentially by backing out half of rev.1.106 of
i386/exception.s.  The handlers must be between certain labels for
the purposes of profiling, and this was broken by scattering them in
separately compiled .s files, especially for ordinary functions that
ended up between the labels.  Merge the files by #including them as
before, except with different pathnames and better comments and
organization.  Changes to the scattered files are minimal -- just
move the labels to the file that does the #includes.

This also partly fixes profiling of IPIs -- all IPI handlers are now
correctly classified as interrupt handlers, but many are still missing
mcount calls.

vm86bios.s is included as before, but it is now between the labels for
interrupt handlers again, which seems to be wrong since half of it is
for a non-interrupt handler.
2004-05-26 07:43:41 +00:00
Bruce Evans
6670fdb155 MFamd64 (put TF_EIP in assym.s and use it instead of a magic offset in
FAKE_MCOUNT()s).
2004-05-23 16:50:55 +00:00
John Baldwin
a894993de1 - Move some macros from icu.h into atpic.c as that is the only place they
are used.
- Reduce duplication of a couple of macros removing the duplicates from
  ich.h.
- Remove unused macros from icu.h as well as locore protection as this
  header is no longer included in assembly sources.
2004-05-11 20:23:24 +00:00
John Baldwin
d4d4ece72d Trim unused includes. 2004-05-11 20:14:53 +00:00
John Baldwin
ffe2232b31 - Simplify the sizeof expression in the CTASSERT() for NUM_ISA_IRQS.
- Fixup grammar in a comment.

Submitted by:	bde (1)
2004-05-10 18:33:52 +00:00
Yoshihiro Takahashi
304a8159e9 Fixed PC98 support.
- Disable an ELCR on PC98.
 - Correct IRQs.
2004-05-06 13:48:34 +00:00
John Baldwin
4b1df14c60 - Add a new pic method pic_config_intr() to set the trigger mode and
polarity for a specified IRQ.  The intr_config_intr() function wraps
  this pic method hiding the IRQ to interrupt source lookup.
- Add a config_intr() method to the atpic(4) driver that reconfigures
  the interrupt using the ELCR if possible and returns an error otherwise.
- Add a config_intr() method to the apic(4) driver that just logs any
  requests that would change the existing programming under bootverbose.
  Currently, the only changes the apic(4) driver receives are due to bugs
  in the acpi(4) driver and its handling of link devices, hence the reason
  for such requests currently being ignored.
- Have the nexus(4) driver on i386 implement the bus_config_intr() function
  by calling intr_config_intr().
2004-05-04 21:02:56 +00:00
John Baldwin
7e4af296b3 - Add a member to the atpic interrupt source structures to indicate if the
IRQ is edge triggered or level triggered.  For ISA interrupts, we assume
  that edge triggered interrupts are always active high and that level
  triggered interrupts are always active low.
- Don't disable an edge triggered interrupt in the PIC.  This avoids
  outb instructions to the actual PIC for traditional ISA IRQs such as
  IRQ 1, 6, 14, and 15.  (Fast interrupts such as IRQs 0 and 8 don't mask
  their source, so this doesn't change anything for them.)
- For MCA systems we assume that all interrupts are level triggered and
  thus need masking.  Otherwise, we probe the ELCR.  If it exists we trust
  what it tells us regarding which interrupts are level triggered.  If it
  does not exist, we assume that IRQs 0, 1, 2, and 8 are edge triggered
  and that all other IRQs are level triggered and need masking.
- Instruct the ELCR mini-driver to restore its saved state during resume.
2004-05-04 20:12:52 +00:00
John Baldwin
030b156bf0 Add a simple mini-driver for the ELCR register. Originally, the ELCR
register controlled the trigger mode and polarity of EISA interrupts.
However, it appears that most (all?) PCI systems use the ELCR to manage
the trigger mode and polarity of ISA interrupts as well since ISA IRQs used
to route PCI interrupts need to be level triggered with active low
polarity.  We check to see if the ELCR exists by sanity checking the value
we get back ensuring that IRQS 0 (8254), 1 (atkbd), 2 (the link from the
slave PIC), and 8 (RTC) are all clear indicating edge trigger and active
high polarity.

This mini-driver will be used by the atpic driver to manage the trigger and
polarity of ISA IRQs.  Also, the mptable parsing code will use this mini
driver rather than examining the ELCR directly.
2004-05-04 20:07:46 +00:00
John Baldwin
9758c1309c - Add an IMEN_MASK macro that returns the 8-bit bitmask of an atpic
interrupt source.
- Only do an outb() to the PIC to clear a bit in imen if the bit is set.
- Add a NUM_ISA_IRQS macro to replace uglier
  'sizeof(array) / sizeof(member)' expressions along with a CTASSERT() to
  ensure that the macro is correct.
2004-05-03 14:52:41 +00:00
Bruce Evans
b3f32d172b Remove old cy driver files. They have been repo-copied to sys/dev/cy and
sys/dev/ic and adjusted to work there.
2004-05-02 05:38:49 +00:00
John Baldwin
f9acc6410e - The i8254 uses IRQ 0, not IRQ 8. Correct i8254_intsrc to reference the
correct interrupt source.
- Cache a pointer to the i8254_intsrc's pending method to avoid several
  pointer indirections in i8254_get_timecount().

Reported by:	bde
2004-04-27 20:03:26 +00:00
David E. O'Brien
f29a68407b Use BSD spelling vs. SysV. 2004-04-19 18:38:04 +00:00
John Baldwin
79cdd799f6 Use %eax rather than %ax when loading segment registers to avoid partial
register stalls.

Reviewed by:	bde (a while ago, and I think an earlier version)
2004-04-16 19:26:37 +00:00
Warner Losh
f36cfd49ad Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.

Approved by: core, peter, alc, rwatson
2004-04-07 20:46:16 +00:00
Warner Losh
c3959ad01c The bs driver was replaced with the ct(pc98) driver. takahashi-san
(nyan) says this driver is now obsolete and can be removed.
2004-04-07 05:44:51 +00:00
Bruce Evans
42d122e125 Converted the isa probe and attach to new-bus so that this driver works
without the (defunct) isa compatibility shims.  The new-bus-specific
parts are very similar to the ones for the pci probe and attach.

This was held up too long waiting for a repo copy to src/sys/dev/cy,
so I decided to fix the files in their old place.  This gives easier
to read and merge diffs anyway.

The "count" line in src/sys/conf/files won't be changed until after
the repo copy, so old kernel configs that specify a count need not be
(and must not be) changed until then.  The count is just ignored in
the driver.  One unfinished detail is dynamic allocation of arrays
with <count> and (<count> * 32) entries, and iteration over the arrays.
This is now kludged with a fixed count of 10 (up to 10 cards with up
to 32 ports each).

Prodded by:	imp
Submitted by:	mostly by imp
Approved by:	imp
2004-04-05 08:16:23 +00:00
Bruce Evans
740a734c33 Moved initialization of the lock from the (isa) probe function to the
common attach function so that the lock gets initialized in all cases.
This fixes breakage of the initialization of the lock in the pci case
in rev.1.135 (between the releases of 5.1 and 5.2).  The lock is only
used in the SMP case, so this bug was not always fatal.
2004-04-05 07:43:18 +00:00
Bruce Evans
8a21510e78 Removed a vestige of the stl driver. 2004-03-18 02:54:42 +00:00
John-Mark Gurney
cb8c2e1cd2 remove stale comment since these limits have been increased YEARS ago... 2004-03-17 19:04:58 +00:00
Nate Lawson
5f96beb9e0 Convert callers to the new bus_alloc_resource_any(9) API.
Submitted by:	Mark Santcroos <marks@ripe.net>
Reviewed by:	imp, dfr, bde
2004-03-17 17:50:55 +00:00
Warner Losh
69ef3621a2 Remove isa compat stuff.
Only cy, bs and wd in the tree still use it.  I have a replacement for
cy that I need to test on ISA and PCI cards.  bs and wd are pc98 only
drivers that appear to no longer be necessary.  I'll be removing them
when I hear back from the pc98 people.
2004-03-14 23:03:57 +00:00
Warner Losh
e9dd5834c6 The gsc driver uses the old COMPAT_ISA api. Retire it so we can
retire the COMPAT_ISA shims.  If someone were to redo this driver with
the new APIs and test it, it can return.
2004-03-14 22:42:54 +00:00
Warner Losh
721745e356 The rdp driver uses the COMPAT_OLD api. This is being retired, so
this driver is being retired.  Remove it from the tree.  If someone
wants to update it to the latest APIs and can test the hardware, it
can return to the tree.
2004-03-14 22:35:29 +00:00
Warner Losh
1cf01aa3f4 The spigot driver uses the old COMPAT_ISA interface. Retire it since
that's going away soon.  Should someone reimplement it using modern
APIs and can test the driver, it can return.
2004-03-14 22:31:49 +00:00
Warner Losh
974f74fce4 The le driver uses ISA_COMPAT, which is going away soon. Retire it
and releated files.  If someone wants to fix it to use the new APIs
and test it, it can be brought back.
2004-03-14 22:25:19 +00:00
Matthew N. Dodd
e3bbbec2ca Announce ethernet MAC addresss in ether_ifattach(). 2004-03-14 07:12:25 +00:00
Warner Losh
a0988ce1a8 stl and stli use the old COMPAT_ISA api. slt also uses the really old
COMPAT_PCI api.  This API is going away, so this driver is going away
also.

If users are interested in updating this, please contact the author
since he has some preliminary work to move this to newer APIs.
2004-03-14 06:48:36 +00:00
Warner Losh
901d6679bd Remove straggler from gp driver removal 2004-03-14 05:34:45 +00:00
Warner Losh
bbde09fb83 Remove gp driver. It uses the old COMPAT_ISA shims.
If this driver is rewritten using newer APIs it can return.
2004-03-14 05:31:41 +00:00
Warner Losh
8822b75696 Remove ctx driver. another scanner. This one uses COMPAT_ISA shims
which is going away soon.

If someone updates this to the latest APIs and tests it, it can return.
2004-03-14 05:27:30 +00:00
Warner Losh
9ddf1ac910 Remove asc driver, support for GI1904 based hand scanners. This
driver uses COMPAT_ISA shims, and those shims are going away.

It can be brought back if someone updates it to the latest APIs, and
moves it to the appropriate place in the tree.
2004-03-14 04:57:28 +00:00
Warner Losh
e08b187c65 Remove wt driver. It still uses COMPAT_ISA_DRIVER which is going away
very soon.

Users needing this driver should update it to a newer API.
2004-03-14 04:46:52 +00:00
Tom Rhodes
a122cca953 These are changes to allow to use the Intel C/C++ compiler (lang/icc)
to build the kernel. It doesn't affect the operation if gcc.

Most of the changes are just adding __INTEL_COMPILER to #ifdef's, as
icc v8 may define __GNUC__ some parts may look strange but are
necessary.

Additional changes:
 - in_cksum.[ch]:
   * use a generic C version instead of the assembly version in the !gcc
     case (ASM code breaks with the optimizations icc does)
     -> no bad checksums with an icc compiled kernel
     Help from:		andre, grehan, das
     Stolen from: 	alpha version via ppc version
     The entire checksum code should IMHO be replaced with the DragonFly
     version (because it isn't guaranteed future revisions of gcc will
     include similar optimizations) as in:
        ---snip---
          Revision  Changes    Path
          1.12      +1 -0      src/sys/conf/files.i386
          1.4       +142 -558  src/sys/i386/i386/in_cksum.c
          1.5       +33 -69    src/sys/i386/include/in_cksum.h
          1.5       +2 -0      src/sys/netinet/igmp.c
          1.6       +0 -1      src/sys/netinet/in.h
          1.6       +2 -0      src/sys/netinet/ip_icmp.c

          1.4       +3 -4      src/contrib/ipfilter/ip_compat.h
          1.3       +1 -2      src/sbin/natd/icmp.c
          1.4       +0 -1      src/sbin/natd/natd.c
          1.48      +1 -0      src/sys/conf/files
          1.2       +0 -1      src/sys/conf/files.amd64
          1.13      +0 -1      src/sys/conf/files.i386
          1.5       +0 -1      src/sys/conf/files.pc98
          1.7       +1 -1      src/sys/contrib/ipfilter/netinet/fil.c
          1.10      +2 -3      src/sys/contrib/ipfilter/netinet/ip_compat.h
          1.10      +1 -1      src/sys/contrib/ipfilter/netinet/ip_fil.c
          1.7       +1 -1      src/sys/dev/netif/txp/if_txp.c
          1.7       +1 -1      src/sys/net/ip_mroute/ip_mroute.c
          1.7       +1 -2      src/sys/net/ipfw/ip_fw2.c
          1.6       +1 -2      src/sys/netinet/igmp.c
          1.4       +158 -116  src/sys/netinet/in_cksum.c
          1.6       +1 -1      src/sys/netinet/ip_gre.c
          1.7       +1 -2      src/sys/netinet/ip_icmp.c
          1.10      +1 -1      src/sys/netinet/ip_input.c
          1.10      +1 -2      src/sys/netinet/ip_output.c
          1.13      +1 -2      src/sys/netinet/tcp_input.c
          1.9       +1 -2      src/sys/netinet/tcp_output.c
          1.10      +1 -1      src/sys/netinet/tcp_subr.c
          1.10      +1 -1      src/sys/netinet/tcp_syncache.c
          1.9       +1 -2      src/sys/netinet/udp_usrreq.c

          1.5       +1 -2      src/sys/netinet6/ipsec.c
          1.5       +1 -2      src/sys/netproto/ipsec/ipsec.c
          1.5       +1 -1      src/sys/netproto/ipsec/ipsec_input.c
          1.4       +1 -2      src/sys/netproto/ipsec/ipsec_output.c

          and finally remove
            sys/i386/i386        in_cksum.c
            sys/i386/include     in_cksum.h
        ---snip---
 - endian.h:
   * DTRT in C++ mode
 - quad.h:
   * we don't use gcc v1 anymore, remove support for it
   Suggested by:	bde (long ago)
 - assym.h:
   * avoid zero-length arrays (remove dependency on a gcc specific
     feature)
     This change changes the contents of the object file, but as it's
     only used to generate some values for a header, and the generator
     knows how to handle this, there's no impact in the gcc case.
   Explained by:	bde
   Submitted by:	Marius Strobl <marius@alchemy.franken.de>
 - aicasm.c:
   * minor change to teach it about the way icc spells "-nostdinc"
   Not approved by:	gibbs (no reply to my mail)
 - bump __FreeBSD_version (lang/icc needs to know about the changes)

Incarnations of this patch survive gcc compiles since a loooong time,
I use it on my desktop. An icc compiled kernel works since Nov. 2003
(exceptions: snd_* if used as modules), it survives a build of the
entire ports collection with icc.

Parts of this commit contains suggestions or submissions from
Marius Strobl <marius@alchemy.franken.de>.

Reviewed by:	-arch
Submitted by:	netchild
2004-03-12 21:45:33 +00:00
Poul-Henning Kamp
dc08ffec87 Device megapatch 4/6:
Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
Poul-Henning Kamp
8e1f1df080 Device megapatch 3/6:
Add missing D_TTY flags to various drivers.

Complete asserts that dev_t's passed to ttyread(), ttywrite(),
ttypoll() and ttykqwrite() have (d_flags & D_TTY) and a struct tty
pointer.

Make ttyread(), ttywrite(), ttypoll() and ttykqwrite() the default
cdevsw methods for D_TTY drivers and remove the explicit initializations
in various drivers cdevsw structures.
2004-02-21 20:41:11 +00:00
Poul-Henning Kamp
c9c7976f7f Device megapatch 1/6:
Free approx 86 major numbers with a mostly automatically generated patch.

A number of strategic drivers have been left behind by caution, and a few
because they still (ab)use their major number.
2004-02-21 19:42:58 +00:00
Bruce Evans
1203f5be25 Fixed a misplaced ifdef that prevented npx.c building without "device isa"
ISA.  npx has few isa dependencies, but it does unconditional outb()'s to
the isa bus in the !SMP case, and it attaches to isa if "device isa" is
configured in order to support PNP-ISA.  The ifdef for the latter was
misplaced.

PR:		62595
2004-02-13 18:04:51 +00:00
Peter Pentchev
f7644f46f0 Fix a typo in kan's last commit: cnavaiable() -> cnavailable() 2004-02-05 10:02:20 +00:00
Alexander Kabaev
e99c09e2dc Eliminate global cons_unavailable flag and replace it by the status
bit maintained on a per-device basis. Single variable is inadequate
on machines running with multiple consoles enabled.
2004-02-05 01:56:43 +00:00
John Baldwin
7a9d7023a2 Revert the skipping of segment register reloads as it appears to actually
be a pessimization on non Pentium4 CPUs.  More importantly, it is buggy as
it can cause GPF's when using APM or vm86.
2004-02-03 22:00:42 +00:00
John Baldwin
5352136a25 Optimize the i386 interrupt entry code to not reload the segment registers
if they already contain the correct kernel selectors.

Reviewed by:	peter
Suggested by:	peter
2004-01-28 20:44:08 +00:00
Joerg Wunsch
d93dea685d Fix a long-standing bug that had been introduced in rev 1.24 with the
replacement of struct proc by struct thread.  This bug could cause a
NULL pointer dereferencation under certain circumstances (e. g. while
running /etc/rc.d/pcvt).
2004-01-07 10:12:59 +00:00
John Baldwin
c8d7ed0d05 - Use i8259A register defines from shared sys/dev/ic/i8259.h rather than
from the i386-specific icu.h.
- Replace PC98 magic numbers with equivalent register define values along
  with comments about PC-98 "quirks".
2004-01-06 19:07:08 +00:00
Warner Losh
6631471980 First part of the removal of drivers for hardware that isn't relevant
or whose drivers haven't even compiled for years.

The loran hardware was very unique, and only a few copies of it ever
existed.  It used the old COMPAT_ISA_DRIVER and when the author was
contacted, he indicated that he had no intention of ever updating this
driver and it was no longer relevant to the FreeBSD world and can be
removed without impact to anybody.

Approved by: phk
2003-12-07 03:51:19 +00:00
Warner Losh
b8b831f0ad Remove cx in its old location.
Approved by: re@ <scottl>
2003-12-03 23:07:37 +00:00
Bruce Evans
933a354fe5 Fixed breakage of the pci case of the cy driver by the new interrupt
code.  Both the driver and the new code were wrong.  Driver interrupt
handlers are supposed to take "void *vsc" arg, but some including all
COMPAT_ISA drivers and the pci part of the cy driver want an "int unit"
arg.  They got this using bogus casts of function pointers which should
have kept working despite their bogusness.  However, the new interrupt
code doesn't honor requests to pass an arg of ((void *)0), so things
are very broken if the arg is actually a representation of unit 0.

The fix is to use a normal "void *vsc" arg for the pci case and a
wrapper for the COMPAT_ISA case (of the cy driver).  This cleans up
new-busification of the pci case but takes the COMPAT_ISA case a little
further from new-bus.  The corresponding bug for the COMPAT_ISA case
has already been fixed similarly using a wrapper in compat_isa.c and
we need another wrapper just to undo that.

Fixed some directly related style bugs (mainly by removing compatibility
cruft).

cy.c:
Fixed an indirectly related old bug in cyattach_common().  A wrong status
was returned in the unlikely event that malloc() failed.

Approved by:	re (scottl)
2003-12-02 12:36:00 +00:00
John Baldwin
6006b8f4c6 Add a special check for a stray IRQ 7 or IRQ 15 to see if it is actually
a spurious interrupt from one of the 8259As.  If so, don't log it as a
stray IRQ, but just silently ignore it.

Approved by:	re (rwatson)
2003-11-19 15:40:23 +00:00
John Baldwin
8c770ed571 - Add counts to the ATPIC interrupt sources and point the ATPIC interrupt
source count pointers at them so that intr_execute_handlers() won't
  choke when it tries to handle an unregisterd ATPIC interrupt source.
- Install the low-level ATPIC interrupt handlers when we first program the
  ATPIC in atpic_startup() rather than at SI_SUB_INTR.  This is only
  necessary to work around buggy code that enables interrupts too early
  in the boot process (namely, the vm86 code).

Approved by:	re (rwatson)
2003-11-19 15:38:56 +00:00
Bruce Evans
095ab45bde Restored the call to schedsofttty() (now spelled swi_sched(...)) again.
Its restoration in rev.1.102 was mistranslated to the equivalent of
setsofttty() in rev.1.105.  This increased overheads by causing a
context switch to the SWI handler after almost every interrupt.  The
increase was approx. 50% on a Celeron 366 (from 23 usec to 34 usec
per interrupt).
2003-11-16 13:31:45 +00:00
Bruce Evans
416ab90e6b Localized the cy driver's locking. 2003-11-16 00:55:54 +00:00
John Baldwin
64bb257f0b Always install IDT entries for ATPIC interrupt sources. The APIC no
longer uses these interrupt vectors for its ISA interrupt pins, so these
entries will not be overwritten.  If we get a spurious interrupt from the
ATPIC when using the APIC, it will be treated as a stray interrupt instead
of causing a panic.
2003-11-14 21:02:49 +00:00
Peter Wemm
2edfe38b10 "opt_auto_eoi.h" is not used here anymore. See atpic.c. 2003-11-14 20:06:24 +00:00
John Baldwin
f082493f10 Replace magic numbers with macros for i8259A register constants. Still
need the ICW4 bits for PC98 though.
2003-11-14 19:13:06 +00:00
John Baldwin
be06bd496f - Bring in constants for 8259A registers from amd64 with some updated
comments from NetBSD's dev/ic/i8259A.h.  These bits really belong in
  a file of the same name as well, but this will do for now.
- Axe unused HWI_MASK.
2003-11-14 19:12:25 +00:00
Poul-Henning Kamp
daf9092bcd Don't disable the TSC with statclock_disable. 2003-11-13 10:02:12 +00:00
John Baldwin
bd9cd7e3f7 - Move manipulation of td_intr_nesting_level out of assembly interrupt
vector stubs and into the C functions they call.
- Move disabling and EOIing of interrupt sources out of PIC driver entry
  points and into intr_execute_handlers().  Intr_execute_handlers() only
  disables a source for an interrupt if it is a stray interrupt or has
  threaded handlers.  Sources with fast handlers no longer disable (mask)
  the source while executing the handlers.
- Move the setting of clkintr_pending into intr_execute_handlers() and set
  the variable for any interrupt source with a vector of 0.  (Should only
  be true for IRQ 0.)  This fixes clkintr_pending in the NO_MIXED_MODE
  case.
- Implement lapic_eoi() and use it to implement ioapic_eoi_source().
- Rename atpic_sched_ithd() to atpic_handle_intr() since it is used to
  handle all atpic interrupts and not just threaded ones.

Inspired by:	peter's changes to amd64 in p4 (1)
Requested by:	bde (2)
2003-11-12 18:13:57 +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
3de744b5d8 Use a wrapper around the driver interrupt handler. The wrapper accepts the
isa_device pointer as its argument and uses that to call the driver's
interrupt handler passing the unit number as its argument.  This should
fix COMPAT_OLDISA devices with a unit number of 0.

Reviewed by:	peter
Reported by:	bde
2003-11-04 19:04:54 +00:00
Yoshihiro Takahashi
dc5f261df8 Fix LINT 2003-11-04 14:02:13 +00:00
Yoshihiro Takahashi
0ca1bf3907 Fix to support pc98. 2003-11-04 13:13:04 +00:00
Yoshihiro Takahashi
95755cc99b Split pc98 support into pc98/pc98/nmi.c. 2003-11-04 13:01:41 +00:00
John Baldwin
892f579780 Remove remaining bits of old interrupt and APIC code. 2003-11-03 22:51:25 +00:00
John Baldwin
73adfd0ca0 Catch up to interrupt code changes. 2003-11-03 22:37:28 +00:00
John Baldwin
b9c72be725 - Export doreti as a global symbol.
- Don't include isa/vector.s.  Each PIC driver's entry points now live in
  their own standalone files.
2003-11-03 22:08:52 +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
John Baldwin
223e573bbd Add the new atpic(4) driver for the 8259A master and slave PICs. By
default we provide 16 interrupt sources for IRQs 0 through 15.  However,
if the I/O APIC driver has already registered sources for any of those IRQs
then we will silently fail to register our own source for that IRQ.

Note that i386/isa/icu.h is now specific to the 8259A and no longer
contains any info relevant to APICs.  Also note that fast interrupts no
longer use a separate entry point.  Instead, both fast and threaded
interrupts share the same entry point which merely looks up the appropriate
source and passes control to intr_execute_handlers().
2003-11-03 21:34:45 +00:00
John Baldwin
e14243fac7 Move the NMI handling code out to its own file. 2003-11-03 21:10:17 +00:00
John Baldwin
8d8dbef5ac Remove soon to be obsolete file to break kernel build while the new
interrupt code comes in.
2003-11-03 21:00:34 +00:00
Brooks Davis
9bf40ede4a Replace the if_name and if_unit members of struct ifnet with new members
if_xname, if_dname, and if_dunit. if_xname is the name of the interface
and if_dname/unit are the driver name and instance.

This change paves the way for interface renaming and enhanced pseudo
device creation and configuration symantics.

Approved By:	re (in principle)
Reviewed By:	njl, imp
Tested On:	i386, amd64, sparc64
Obtained From:	NetBSD (if_xname)
2003-10-31 18:32:15 +00:00
Brooks Davis
c020a92f9f There is no way to enter the attach routine twice with the same softc
without a detach call in between so don't try to deal with that
possiability.

This is a diff-reduction commit for the upcoming if_xname conversion.
2003-10-30 19:45:58 +00:00
Bruce Evans
ed86674a3d Don't forget to load %es with the kernel data segment selector in
Xcpustop().  %es is used in at least the call to savectx() when savectx()
calls bcopy(), so not loading it was fatal if a stop IPI interrupts
user mode.

This reduces bugs starting and stopping CPUs for debuggers.  CPUs are
stopped mainly in kdb_trap() and cpu_reset().  At reset time there is
a good chance that all the CPUs are in the kernel, so the bug was
probably harmless then.
2003-10-16 10:44:24 +00:00
Doug Rabson
5f16902f7e Add a workaround for the fact that the priv field was removed from
struct driver. We were the last user of that field (and we are scheduled
for demolition) so there wasn't much point in keeping it.
2003-10-16 09:18:35 +00:00
Bruce Evans
fa2e26c437 MFsio (sio.c 1.413: cleaned up and fixed setting of speeds in comparam()).
This is just a cleanup here (modulo rev.1.108 of kern/tty.c), since the
input speed can be different from to output speed and extra code to
handle both speeds naturally handled all cases.
2003-09-27 12:40:23 +00:00
Bruce Evans
7872ac5542 Quick fix for bitrot in locking in the SMP case. cd_getreg() and
cd_setreg() were still using !(read_eflags() & PSL_I) as the condition
for the lock hidden by COM_LOCK() (if any) being held.  This worked
when spin mutexes and/or critical_enter() used hard interrupt disablement,
but it has caused recursion on the non-recursive mutex com_mtx since
all relevant interrupt disablement became soft.  The recursion is
harmless unless there are other bugs, but it breaks an invariant so
it is fatal if spinlocks are witnessed.
2003-09-27 10:30:03 +00:00
Poul-Henning Kamp
3623186cbc Initialize cn_name, ignore cn_dev. 2003-09-26 08:51:54 +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
John Baldwin
0e85b19ba9 Add constants for entries in the IDT and use those instead of magic
numbers.
2003-09-10 01:07:04 +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
116b8c8695 Mark the isa compat shims for BURN_BRIDGES for 6.0 2003-09-05 14:55:11 +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
Yoshihiro Takahashi
f2a610fa25 Fix compile error. 2003-08-25 08:13:07 +00:00
Warner Losh
afe1c7ba84 Even though this driver says it is broken, fix the location of the pci
include files.
2003-08-23 16:59:16 +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
c43001fc56 As warned: Initiate deorbit burn for the pcaudio driver. 2003-08-15 14:56:05 +00:00
Jacques Vidrine
007e25d95a Add or correct range checking of signal numbers in system calls and
ioctls.

In the particular case of ptrace(), this commit more-or-less reverts
revision 1.53 of sys_process.c, which appears to have been erroneous.

Reviewed by:	iedowse, jhb
2003-08-10 23:04:55 +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
Bruce Evans
1c5fa550e8 Broke the warning that the cx driver (cronyx.c, cx,c and if_cx.c) uses
pessimal (u_short) types for i/o ports.  I don't understand the data
structures in this driver well enough to unpessimize the types.
2003-08-06 11:05:42 +00:00
Bruce Evans
55a6f50b8d Don't use pessimal (u_short) types for i/o ports. This is mainly for
completenss.  The pessimization is tiny compared with i/o port slowness
except on very old machines, but code that used signed short types for
i/o ports was unpessimized long ago, and the macro that detected it
recently started working for u_short types too.  Use of bus space
should have made this moot long ago.

Not tested at runtime by:  bde
2003-08-05 20:11:50 +00:00
Robert Drehmel
266c520a5a Changed the data types of three index variables, two of them
in the `video_state' structure, to larger ones (from u_char to
u_short).  Each can now hold values at least as large as the
size of the array it is meant to point into.

This eliminates warnings printed by GCC 3.3.1 and hence makes
pcvt compilable using -Werror.
2003-07-27 14:01:33 +00:00
Peter Wemm
a35b33869d Initiate de-orbit burn for fpu-less operation. 386+387 is still
theoretically supportable, but you'd really be happier with FreeBSD 2.1.8
on it.
2003-07-22 08:11:17 +00:00
Robert Drehmel
fcaec66af7 Make the 80x60, 132x25, 132x43, 132x50, and 132x60 VESA text modes
work when using a graphics chipset which identifies itself as
`VIA CLE266', used in some VIA EPIA boards.  Two values need to be
patched in the VESA mode information structure: the widths of the modes
mentioned above are encoded in a format which was unknown to the VESA
module (and to my copy of the VBE spec.) whereas the window memory
segment values seem to be just incorrect.

I tested this on a VIA EPIA-M9000 and -M10000.
2003-07-18 00:06:10 +00:00
Peter Wemm
e95babf3a8 unifdef -DLAZY_SWITCH and start to tidy up the associated glue. 2003-07-10 01:02:59 +00:00
John Baldwin
5cc1a74e77 Silly compile fixes from resource_disabled() commit.
Reported by:	tinderbox
Pointy hat to:	jhb
2003-07-03 14:33:17 +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
John-Mark Gurney
b9d3718a18 fix another LP64 problem. READ_IVAR takes a pointer to an uintptr_t, not
an int.
2003-06-20 07:22:54 +00:00
John Baldwin
6b9691f103 - Use IDTVEC() to declare IPI handlers since they are also IDT vectors.
- Make handlers for IPI's used by SMP kernels #ifdef SMP.
2003-06-06 17:45:25 +00:00
David E. O'Brien
006124d811 Use __FBSDID(). 2003-06-02 16:32:55 +00:00
Poul-Henning Kamp
670966596b Remove unused variable(s).
Found by:       FlexeLint
2003-05-31 20:29:34 +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
78b52202d0 Fix indentation.
Found by:       FlexeLint
2003-05-31 19:02:20 +00:00
Poul-Henning Kamp
e64f402ff1 Hang softc from dev_t 2003-05-31 18:56:58 +00:00
Poul-Henning Kamp
03841f4eec Eliminate potential overflows by allocating softc dynamically,
removing at the same time the need for this to be a "count" config
option.

Found by:       FlexeLint
2003-05-31 17:06:20 +00:00
John Baldwin
ace85d0a3c Style nits.
Approved by:	re (bmah)
2003-05-07 17:21:38 +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
Warner Losh
5899148189 After careful review of this driver, I'm pretty sure it would take a
lot of work to make this driver work under current.  In the past when
people wanted to remove xten, I was the only one in the way.  After
talking to fsmp@ (last person to make real changes to this driver)
about this, I'm convinced it is better left in the dust-bin of history

Approved by: re@ (scottl)
2003-04-27 05:30:52 +00:00