Commit Graph

10521 Commits

Author SHA1 Message Date
David Xu
f71ba3d4a7 Remove pcb_switchout, it has not been used for a long time. 2005-12-29 13:23:48 +00:00
Maxim Sobolev
900b28f9f6 Remove kern.elf32.can_exec_dyn sysctl. Instead extend Brandinfo structure
with flags bitfield and set BI_CAN_EXEC_DYN flag for all brands that usually
allow executing elf dynamic binaries (aka shared libraries). When it is
requested to execute ET_DYN elf image check if this flag is on after we
know the elf brand allowing execution if so.

PR:		kern/87615
Submitted by:	Marcin Koziej <creep@desk.pl>
2005-12-26 21:23:57 +00:00
David Xu
1bfa910843 Move global variable private_tss into per-cpu area.
Reviewed by: jhb
2005-12-26 00:07:19 +00:00
Jeff Roberson
660002d398 - Improve the INKERNEL macro such that it can no longer give false positives.
This fixes the stack(9) functionality.

Submitted by:	Antoine Brodin <antoine.brodin@laposte.net>
2005-12-23 21:33:55 +00:00
John Baldwin
b439e431bf Tweak how the MD code calls the fooclock() methods some. Instead of
passing a pointer to an opaque clockframe structure and requiring the
MD code to supply CLKF_FOO() macros to extract needed values out of the
opaque structure, just pass the needed values directly.  In practice this
means passing the pair (usermode, pc) to hardclock() and profclock() and
passing the boolean (usermode) to hardclock_cpu() and hardclock_process().
Other details:
- Axe clockframe and CLKF_FOO() macros on all architectures.  Basically,
  all the archs were taking a trapframe and converting it into a clockframe
  one way or another.  Now they can just extract the PC and usermode values
  directly out of the trapframe and pass it to fooclock().
- Renamed hardclock_process() to hardclock_cpu() as the latter is more
  accurate.
- On Alpha, we now run profclock() at hz (profhz == hz) rather than at
  the slower stathz.
- On Alpha, for the TurboLaser machines that don't have an 8254
  timecounter, call hardclock() directly.  This removes an extra
  conditional check from every clock interrupt on Alpha on the BSP.
  There is probably room for even further pruning here by changing Alpha
  to use the simplified timecounter we use on x86 with the lapic timer
  since we don't get interrupts from the 8254 on Alpha anyway.
- On x86, clkintr() shouldn't ever be called now unless using_lapic_timer
  is false, so add a KASSERT() to that affect and remove a condition
  to slightly optimize the non-lapic case.
- Change prototypeof  arm_handler_execute() so that it's first arg is a
  trapframe pointer rather than a void pointer for clarity.
- Use KCOUNT macro in profclock() to lookup the kernel profiling bucket.

Tested on:	alpha, amd64, arm, i386, ia64, sparc64
Reviewed by:	bde (mostly)
2005-12-22 22:16:09 +00:00
Warner Losh
b0493a9984 Move device 'cs' into i386/pc98 specific NOTES. It is broken on ppc
because it uses i386 specific calls.  Maybe it could be added to
amd64, but I'm not so sure it would work there so I've not added it
there.
2005-12-20 23:00:11 +00:00
John Baldwin
5b2119223e Move the hostb driver out of the i386 and amd64 PCI code (where it was
duplicated anyways) and into a single MI driver.  Extend the driver a bit
to implement the bus and PCI kobj interfaces such that other drivers can
attach to it and transparently act as if their parent device is the PCI
bus (for the most part).
2005-12-20 21:09:45 +00:00
John Baldwin
410d857972 Remove linux_mib_destroy() (which I actually added in between 5.0 and 5.1)
which existed to cleanup the linux_osname mutex.  Now that MTX_SYSINIT()
has grown a SYSUNINIT to destroy mutexes on unload, the extra destroy here
was redundant and resulted in panics in debug kernels.

MFC after:	1 week
Reported by:	Goran Gajic ggajic at afrodita dot rcub dot bg dot ac dot yu
2005-12-15 16:30:41 +00:00
John Baldwin
05ee80c796 Fix stale comment. 2005-12-14 21:47:02 +00:00
Peter Wemm
737429bc96 MFamd64 rev 1.223: Use the TSC to implement DELAY() if not marked broken
and it has been calibrated.
2005-12-13 19:08:55 +00:00
John Baldwin
e83f6bcb75 Revert previous commit. The BIOS braindamage is even worse than I
originally thought.  The BIOS that cleared CPUID_APIC actually managed
to disable the local APIC entirely and even Windows 64 doesn't boot on
it.

Reported by:	bz
2005-12-13 18:29:10 +00:00
John Baldwin
15b7edbeaa Don't check the CPUID_APIC bit in the cpu_features flags field to determine
if the boot CPU has a local APIC because some BIOS vendors are not
competent enough to set this bit.  Instead, just assume that we always have
a local APIC on amd64.  For i386 the check is a bit more subtle.  FreeBSD
requires either an MP Table or an ACPI MADT table to enumerate APICs.  The
only systems that have one of those tables that don't have local APICs are
some presumably rare (and old) SMP 486 systems using external APICs.  Thus,
instead of checking the CPUID_APIC flag, check the CPU class and abort if
we are running on a 486.

MFC after:	1 week
Reported by:	bz
2005-12-13 15:09:40 +00:00
Craig Rodrigues
16f99fe169 Add support for 7320 and 915 PCIe chipsets.
Submitted by:	Gavin Atkinson <gavin.atkinson at ury dot york dot ac dot uk>
PR:		kern/79139
Reviewed by:	scottl
2005-12-08 18:55:15 +00:00
John Baldwin
47d65ba4d0 Whitespace: reduce diffs with amd64. 2005-12-08 18:33:48 +00:00
John Baldwin
696effb697 - Cleanup whitespace and extra ()s in vtophys() macros.
- Move vtophys() macros next to vtopte() where vtopte() exists to match
  comments above vtopte().
- Remove references to the alternate address space in the comment above
  vtopte().  amd64 never had the alternate address space, and i386 lost it
  prior to PAE support being added.
- s/entires/entries/ in comments.

Reviewed by:	alc
2005-12-06 21:09:01 +00:00
Jung-uk Kim
50c9fad9ce Fix ZERO_EDX() macro from the previous commit. It was emitting
`xor %ecx, %ecx', not `xor %edx, %edx'.
2005-12-06 20:11:07 +00:00
Ruslan Ermilov
224d140293 Drop _MACHINE_ARCH and _MACHINE defines (not to be confused with
MACHINE_ARCH and MACHINE).  Their purpose was to be able to test
in cpp(1), but cpp(1) only understands integer type expressions.
Using such unsupported expressions introduced a number of subtle
bugs, which were discovered by compiling with -Wundef.
2005-12-06 13:27:21 +00:00
Jung-uk Kim
6a96c4832f s/M_WAITOK/M_NOWAIT/ while mutex is held.
Pointed out by:	csjp
2005-12-06 07:22:01 +00:00
Jung-uk Kim
23a8fc28c2 - Micro-optimize mov $0, %edx' -> xor %edx, %edx'.
- Correct amd64 macro style (no functional change).
2005-12-06 06:45:39 +00:00
Jung-uk Kim
ae275efcae Add experimental BPF Just-In-Time compiler for amd64 and i386.
Use the following kernel configuration option to enable:

	options BPF_JITTER

If you want to use bpf_filter() instead (e. g., debugging), do:

	sysctl net.bpf.jitter.enable=0

to turn it off.

Currently BIOCSETWF and bpf_mtap2() are unsupported, and bpf_mtap() is
partially supported because 1) no need, 2) avoid expensive m_copydata(9).

Obtained from:	WinPcap 3.1 (for i386)
2005-12-06 02:58:12 +00:00
John Baldwin
2dce95a085 Change the i386 code to pass the interrupt vector as a separate argument
rather than embedding it in the intrframe as if_vec.  This reduces diffs
with amd64 somewhat.
- Remove cf_vec from clockframe (it wasn't used anyway) and stop pushing
  dummy vector arguments for ipi_bitmap_handler() and lapic_handle_timer()
  since clockframe == trapframe now.
- Fix ddb to handle stack traces across interrupt entry points that just
  have a trapframe on their stack and not a trapframe + vector.
- Change intr_execute_handlers() to take a trapframe rather than an
  intrframe pointer.
- Change lapic_handle_intr() and atpic_handle_intr() to take a vector and
  trapframe rather than an intrframe.
- GC struct intrframe now that nothing uses it anymore.
- GC CLOCK_TO_TRAPFRAME() and INTR_TO_TRAPFRAME().

Reviewed by:	bde
Requested by:	peter
2005-12-05 22:39:09 +00:00
John Baldwin
f0b9813920 - Move the code to deal with handling an IPI_STOP IPI out of
ipi_nmi_handler() and into a new cpustop_handler() function.  Change
  the Xcpustop IPI_STOP handler to call this function instead of
  duplicating all the same logic in assembly.
- EOI the local APIC for the lapic timer interrupt in C rather than
  assembly.
- Bump the lazypmap IPI counter if COUNT_IPIS is defined in C rather than
  assembly.
2005-12-05 22:25:41 +00:00
John Baldwin
ac7326e338 Don't panic if IRQ 13 doesn't exist. On some machines (see previous
commit to atpic.c) there may not be an IRQ 13.  Instead, just keep going.
If the INT16 interface doesn't work then we will eventually panic anyway.

FWIW: We could probably just axe the support for IRQ 13 altogether at this
point.  The only thing we'd lose support for are 486sx systems with
external 487 FPUs.

MFC after:	1 week
2005-12-05 22:11:44 +00:00
John Baldwin
5ae84c09e7 Really slam the door on mixed mode now that we don't depend on it for a
working IRQ0 with APIC anymore.  Previously, it was possible to have
some other ATPIC IRQS "leak" through in a few edge cases.  For example, on
my x86 test machine, ACPI re-routes the SCI (IRQ 9) to intpin 13 on the
first I/O APIC.  This leaves a hole for IRQ 13 (since the APIC doesn't
provide a source for IRQ 13 in that case) with the result that the ATPIC
IRQ13 source was registered instead.  This changes the 8259A drivers to
only register their interrupt sources if none of the 16 ISA IRQs have an
interrupt source already installed.

MFC after:	1 week
2005-12-05 22:09:30 +00:00
John Baldwin
48c8cbcb82 - Move PUSH_FRAME and POP_FRAME into machine/asmacros.h.
- Add a new SET_KERNEL_SREGS macro that sets up %ds and %es to point to
  kernel data and %fs to point to per-CPU data and use the new macro
  in several kernel entry points including trap and interrupt handlers.
- Convert the IPI_STOP handler Xcpustop to push a standard trap frame
  rather than an application frame.
- Make the TRAP() macro private to exception.s since it is only used
  there.
- Move the PCPU_*() macros in asmacros.h out of the middle of the
  profiling macros.

Reviewed by:	bde
Requested by:	bde (4, 5)
2005-12-05 21:44:47 +00:00
Ruslan Ermilov
8c7a62275a Prepare for MACHINE and hw.machine switching to "pc98" on FreeBSD/pc98.
Reviewed by:	nyan
2005-12-05 14:22:12 +00:00
Ruslan Ermilov
342ed5d948 Fix -Wundef warnings found when compiling i386 LINT, GENERIC and
custom kernels.
2005-12-05 11:58:35 +00:00
Eric Anholt
69b9fffc84 Merge DRM CVS as of 2005-12-02, adding i915 DRM support thanks to Alexey Popov,
and a new r300 PCI ID.
2005-12-03 01:23:50 +00:00
Eric Anholt
9fb0767374 Update DRM to CVS snapshot as of 2005-11-28. Notable changes:
- S3 Savage driver ported.
- Added support for ATI_fragment_shader registers for r200.
- Improved r300 support, needed for latest r300 DRI driver.
- (possibly) r300 PCIE support, needs X.Org server from CVS.
- Added support for PCI Matrox cards.
- Software fallbacks fixed for Rage 128, which used to render badly or hang.
- Some issues reported by WITNESS are fixed.
- i915 module Makefile added, as the driver may now be working, but is untested.
- Added scripts for copying and preprocessing DRM CVS for inclusion in the
  kernel.  Thanks to Daniel Stone for getting me started on that.
2005-11-28 23:13:57 +00:00
John Baldwin
d6ef938e56 If we get a stray interrupt, return after logging it. In the extremely
rare case of a stray interrupt to an unregistered source (such as a stray
interrupt from the 8259As when using APIC), this could result in a page
fault when it tried to walk the list of interrupt handlers to execute
INTR_FAST handlers.  This bug was introduced with the intr_event changes,
so it's not present in 5.x or 6.x.

Submitted by:	Mark Tinguely tinguely at casselton dot net
2005-11-28 20:18:43 +00:00
Ruslan Ermilov
6646524f34 - Allow duplicate "machine" directives with the same arguments.
- Move existing "machine" directives to DEFAULTS.
2005-11-27 23:17:00 +00:00
Lukas Ertl
ae5a74ec72 Fix typo. 2005-11-24 15:28:32 +00:00
Ruslan Ermilov
1a581012df Add missing "struct" in i386/i386/machdep.c,v 1.497 by deischen@. 2005-11-24 08:16:18 +00:00
John Baldwin
1dab802e37 Garbage collect machine/smptests.h now that it is empty and no longer used. 2005-11-22 22:55:48 +00:00
John Baldwin
c21ba8d166 Make COUNT_IPIS and COUNT_XINVLTLB_HITS real kernel options and take
them out of machine/smptests.h.
2005-11-22 22:54:42 +00:00
John Baldwin
e36e973da9 Garbage collect unused {VERBOSE_,}CPUSTOP_ON_DDBBREAK macros. 2005-11-22 22:37:13 +00:00
John Baldwin
0a17b197d3 Garbage collect the code to store diagnostics codes in a CMOS register
during SMP startup.  We haven't had any issues with starting up the APs
on i386 in quite a while now which is all this code is really useful for.
If someone ever does really need it they can always dig it up out of the
attic.
2005-11-22 22:34:14 +00:00
John Baldwin
7417e80b4e Don't enable PUC_FASTINTR by default in the source. Instead, enable it
via the DEFAULTS kernel configs.  This allows folks to turn it that option
off in the kernel configs if desired without having to hack the source.
This is especially useful since PUC_FASTINTR hangs the kernel boot on my
ultra60 which has two uart(4) devices hung off of a puc(4) device.

I did not enable PUC_FASTINTR by default on powerpc since powerpc does not
currently allow sharing of INTR_FAST with non-INTR_FAST like the other
archs.
2005-11-21 20:22:35 +00:00
Alan Cox
97a0c226d6 Eliminate pmap_init2(). It's no longer used. 2005-11-20 06:09:49 +00:00
John Baldwin
7d0a7ec90c - Always print the trap number so that we have something to start with for
mystery traps.  If we don't have a message for a given trap, just use
  UNKNOWN for the message.
- Add trap messages for T_XMMFLT and T_RESERVED.

MFC after:	1 week
2005-11-18 19:26:46 +00:00
David E. O'Brien
5ab591d4d9 Fix spelling mistake.
Submitted by:	kris
2005-11-17 02:32:39 +00:00
John Baldwin
db477d6cc8 Revert a part of the previous commits to these files that made the NMI
IPI_STOP handling code use atomic_readandclear() to execute the restart
function on the first CPU to resume and restore the behavior of always
executing the restart function on the BSP since this is in fact what the
non-NMI IPI_STOP handler does.  I did add back in a statement to clear
the restart function pointer after it is executed to match the behavior
of the non-NMI IPI_STOP handler.
2005-11-16 20:58:40 +00:00
John Baldwin
fdb9ce3716 Revert previous commit to these files. There isn't a race necessitating
an xchg instruction as we only try to execute the startup function if
the CPU ID is 0 (i.e. the BSP).  I missed this earlier.
2005-11-16 20:55:57 +00:00
John Baldwin
b60119eb02 Fix a typo in the check for an invalid APIC. If we are told about an
I/O APIC that doesn't exist, then a read of the version register is going
to return -1 which is 0xffffffff not 0xffffff.

Tested on:	i386
Tested by:	Nikos Ntarmos ntarmos at ceid dot upatras dot gr
MFC after:	1 week
2005-11-16 20:29:29 +00:00
Andre Oppermann
da12fc2370 Provide a link to the documentation of the I/O APIC at Intel. 2005-11-15 20:18:13 +00:00
Warner Losh
421552a580 Provide a dummy NO_XBOX option that lives in opt_xbox.h for pc98.
This allows us to eliminate a three ifdef PC98 instances.
2005-11-14 00:43:44 +00:00
Warner Losh
2eb06f7ccb Add xbox associated options/devices to LINT.
Submitted by: Rink P.W. Springer
2005-11-14 00:20:27 +00:00
Alan Cox
65336314cf In get_pv_entry() use PMAP_LOCK() instead of PMAP_TRYLOCK() when deadlock
cannot possibly occur.
2005-11-13 02:17:05 +00:00
Ruslan Ermilov
6d8200ff0c Add /dev/speaker support to amd64.
The following repo-copies were made (by Mark Murray):

sys/i386/isa/spkr.c -> sys/dev/speaker/spkr.c
sys/i386/include/speaker.h -> sys/dev/speaker/speaker.h
share/man/man4/man4.i386/spkr.4 -> share/man/man4/spkr.4
2005-11-11 09:57:32 +00:00
Yoshihiro Takahashi
1ba0023e33 Fix pc98 build. 2005-11-09 12:22:26 +00:00