Commit Graph

5246 Commits

Author SHA1 Message Date
Maxim Sobolev
df86dcaf67 Fix typo in comments in r189023. 2009-02-25 22:24:56 +00:00
Jung-uk Kim
a4079bfb74 Enable support for PAT_WRITE_PROTECTED and PAT_UNCACHED cache modes
unconditionally on amd64.  On i386, we assume PAT is usable if the CPU
vendor is not Intel or CPU model is newer than Pentium IV.

Reviewed by:	alc, jhb
2009-02-25 20:26:48 +00:00
Maxim Sobolev
e0bc0fad3d Make machdep.hyperthreading_enabled tunable working with the SCHED_ULE.
Unlike with SCHED_BSD, however, it can only be set to 0 at boot time,
it's not possible to change it at runtime.

Reviewed by:	jhb
MFC after:	1 month
2009-02-25 01:49:01 +00:00
Andrew Thompson
1f4963cb16 These are no longer needed. 2009-02-24 23:27:59 +00:00
Andrew Thompson
211211de83 Exclude ndis from the LINT build as it currently breaks the build, patches to
move to the new usb stack are in progress.
2009-02-24 00:39:48 +00:00
Andrew Thompson
c89d41e5ff Change over the usb kernel options to the new stack (retaining existing
naming). The old usb stack can be compiled in my prefixing the name with 'o'.
2009-02-23 18:34:56 +00:00
John Baldwin
0b7dc0a7c6 Some whitespace and style fixes.
Submitted by:	bde (partly)
2009-02-23 15:39:24 +00:00
Alan Cox
6d65f2fa57 Optimize free_pv_entry(); specifically, avoid repeated TAILQ_REMOVE()s.
MFC after:	1 week
2009-02-23 06:00:24 +00:00
Jeff Roberson
35d8de82c4 - Resolve an issue where we may clear an idt while an interrupt on a
different cpu is still assigned to that vector by never clearing idt
   entries.  This was only provided as a debugging feature and the bugs
   are caught by other means.
 - Drop the sched lock when rebinding to reassign an interrupt vector
   to a new cpu so that pending interrupts have a chance to be delivered
   before removing the old vector.

Discussed with:	tegge, jhb
2009-02-21 23:15:34 +00:00
Konstantin Belousov
99b7f1a10b Adapt linux emulation to use cv for vfork wait.
Submitted by:	Takahiro Kurosawa <takahiro.kurosawa gmail com>
PR:	kern/131506
2009-02-18 16:11:39 +00:00
Andrew Thompson
e31a070263 Add uslcom to the build too.
Reminded by:	Michael Butler
2009-02-15 23:40:29 +00:00
Andrew Thompson
e4edc14efd Switch over GENERIC kernels to USB2 by default.
Tested by:	make universe
2009-02-15 22:33:44 +00:00
Alan Cox
6be00eca3f Remove unnecessary page queues locking around vm_page_busy() and
vm_page_wakeup().  (This change is applicable to RELENG_7 but not
RELENG_6.)

MFC after:	1 week
2009-02-14 18:23:52 +00:00
Marcel Moolenaar
91e1be8baf Add option GEOM_PART_EBR by default on amd64 and i386. 2009-02-10 00:08:39 +00:00
Olivier Houchard
96c7367b9e The bounce zone sees its page number increased if multiple dma maps use it in
the same dma tag. However, it can happen multiple dma tags share the same
bounce zone too, so add a per-bounce zone map counter, and check it instead of
the dma tag map counter, to know if we have to alloc more pages.

Reported by:	miwi
Reviewed by:	scottl
2009-02-09 18:03:31 +00:00
Warner Losh
047e5fdabc When bouncing pages, allow a new option to preserve the intra-page
offset.  This is needed for the ehci hardware buffer rings that assume
this behavior.

This is an interim solution, and a more general one is being worked
on.  This solution doesn't break anything that doesn't ask for it
directly.  The mbuf and uio variants with this flag likely don't work
and haven't been tested.

Universe builds with these changes.  I don't have a huge-memory
machine to test these changes with, but will be happy to work with
folks that do and hps if this changes turns out not to be sufficient.

Submitted by:	alfred@ from Hans Peter Selasky's original
2009-02-08 22:54:58 +00:00
Warner Losh
3282e64ac0 Companion for r188301: fix the prototypes. 2009-02-08 07:03:34 +00:00
Warner Losh
d9d53b2a54 Correct parameter types for pcib_{read,write}_config by fixing the
protptyoes for the legacy_* impelemtnations of these kobj methods.
2009-02-08 07:02:42 +00:00
Wojciech A. Koszek
c4ce3ea6eb Tidy NOTES a bit:
- remove misleading nve/nfe comments, which make it hard to
  distinguish those two at a first glance
- bring pbio documentation to the block comment together with
  other drivers

I also brought commented out line responsible for si(4), since it
seems to compile and already has respective comment in this file.
2009-02-07 00:01:10 +00:00
Wojciech A. Koszek
bc4c1ddaf9 ural(4) is already present in global NOTES, thus there is no
need to explicitly list it here once again. This removes:

	WARNING: duplicate option `DEV_URAL' encountered.
	WARNING: duplicate device `ural' encountered.

Warnings when compiling LINT on amd64.
2009-02-06 21:56:55 +00:00
Wojciech A. Koszek
c353491ad3 Fix AGP debugging code:
- correct format strings
- fill opt_agp.h if AGP_DEBUG is defined
- bring AGP_DEBUG to LINT by mentioning it in NOTES

This should hopefully fix a warning that was...

Found by:	Coverity Prevent(tm)
CID:		3676
Tested on:	amd64, i386
2009-02-06 20:57:10 +00:00
Joseph Koshy
bb471e3315 Improve robustness of NMI handling, for NMIs recognized in kernel
mode.

- Make the NMI handler run on its own stack (TSS_IST2).
- Store the GSBASE value for each CPU just before the start of
  each NMI stack, permitting efficient retrieval using %rsp-relative
  addressing.
- For NMIs taken from kernel mode, program MSR_GSBASE explicitly
  since one or both of MSR_GSBASE and MSR_KGSBASE can be potentially
  invalid.  The current contents of MSR_GSBASE are saved and restored
  at exit.
- For NMIs handled from user mode, continue to use 'swapgs' to
  load the per-CPU GSBASE.

Reviewed by:	jeff
Debugging help:	jeff
Tested by:	gnn, Artem Belevich <artemb at gmail dot com>
2009-02-03 09:01:45 +00:00
David E. O'Brien
d065e13dc2 Fix the inconsistent tabbing.
Noticed by:	bde
2009-01-31 20:46:01 +00:00
David E. O'Brien
e6493bbebf Change some movl's to mov's. Newer GAS no longer accept 'movl' instructions
for moving between a segment register and a 32-bit memory location.

Looked at by:	jhb
2009-01-31 11:37:21 +00:00
Jeff Roberson
9c8e8e3aa7 - Allocate apic vectors on a per-cpu basis. This allows us to allocate
more irqs as we have more cpus.  This is principally useful on systems
   with msi devices which may want many irqs per-cpu.

Discussed with:	jhb
Sponsored by:	Nokia
2009-01-29 09:22:56 +00:00
John Baldwin
de43ac6044 Use a different value for the initial control word for the FPU state for
32-bit processes.  The value matches the initial setting used by
FreeBSD/i386.  Otherwise, 32-bit binaries using floating point would use
a slightly different initial state when run on FreeBSD/amd64.

MFC after:	1 week
2009-01-28 20:35:16 +00:00
Jung-uk Kim
b11e7979ac VIA Nano processor has a special MSR (CENT_HARDWARECTRL3) bit 32 to determine
whether TSC is P-state invariant or not.  In fact, this MSR is writable but
we just leave it at the BIOS default for now.
2009-01-22 21:04:46 +00:00
Konstantin Belousov
5c0c22e92e The context switch to the 32bit binary does not properly restore
the fsbase value. The switch loads the fs segment register, that
invalidates the value in fsbase msr, thus value in %r9 can not be
considered the current value for fsbase anymore.

Unconditionally reload fsbase when switching to 32bit binary.

PR:	130526
MFC after:	3 weeks
2009-01-20 12:07:49 +00:00
Maxim Sobolev
9cfe40d9fa Take NTFS option out to match i386 GENERIC.
Suggested by:	phk, luigi
2009-01-19 15:33:06 +00:00
Maxim Sobolev
4d598bc1de asr(4) is not amd64-clean, not amr(4).
Pointy hat to:	myself
Submitted by:	scottl
2009-01-19 08:51:20 +00:00
Maxim Sobolev
69b2984e2e Comment amr(4) out - according to scottl it's not 64-bit clean. 2009-01-19 08:25:41 +00:00
Maxim Sobolev
68ce278eea Whitespace-only: reduce diff to the i386 GENERIC. 2009-01-19 07:18:32 +00:00
Maxim Sobolev
579aaaa4ea Add asr(4) and stge(4) from i386 GENERIC. Both drivers compile on amd64 and
there is no particular reason for them to be i386-only.

MFC after:	2 weeks
2009-01-19 07:10:11 +00:00
Konstantin Belousov
a353a3455e Disable interrupts, if they were enabled, before doing swapgs.
Otherwise, interrupt may happen while we run with kernel CS and usermode
gsbase.

Reviewed by:	jeff
MFC after:	1 week
2009-01-14 14:20:08 +00:00
Andrew Thompson
ea8f960c13 MFp4: //depot/projects/usb@155990
Add USB scanner support to USB2 config files.

Submitted by: Hans Petter Selasky
2009-01-13 19:05:10 +00:00
Luigi Rizzo
650ea0d62e Documentation-only change:
- add a reference to the config(5) manpage;
- hopefully clarify the format of the 'env FILENAME' directive.

I am putting these notes in sys/${arch}/conf/GENERIC and not
in sys/conf/NOTES because:

1. i386/GENERIC already had reference to a similar option (hints..)
   and to documentation (handbook)

2. GENERIC is what most users look at when they have to modify or
   create a new kernel config, so having the suggestion there is
   more effective.

I am only touching i386 and amd64 because the other GENERIC files
are already out of sync, and I am not sure what is the overall plan.

MFC after:	3 days
2009-01-13 12:35:33 +00:00
Jung-uk Kim
92df0bda99 Add basic amd64 support for VIA Nano processors. 2009-01-12 19:17:35 +00:00
Jung-uk Kim
6811e5d474 Add Centaur/IDT/VIA vendor ID for Nano family, which has long mode support. 2009-01-05 21:51:49 +00:00
Robert Watson
b581c4975b Add commented out options KDTRACE_HOOKS and, for amd64, KDRACE_FRAME,
to GENERIC configuration files.  This brings what's in 8.x in sync
with what is in 7.x, but does not change any current defaults.

Possibly they should now be enabled in head by default?
2009-01-05 14:21:49 +00:00
Rui Paulo
e287cc5d31 Disable USB bluetooth (needs netgraph built in) and USB audio (doesn't
compile).
2008-12-30 20:13:20 +00:00
Rui Paulo
0b8454a9a0 Add a kernel config file so that users have less difficulty testing
USBng.

If it makes sense, it could be done for arm/mips too.
2008-12-30 19:46:06 +00:00
Marcel Moolenaar
05002c354b Make gpart the default partitioning class on all platforms.
Both ia64 and powerpc were using gpart exclusively already
so there's no change for those two.

Discussed on: arch@
2008-12-17 17:43:22 +00:00
Warner Losh
db3cd725a5 AT_DEBUG and AT_BRK were OBE like 10 years ago, so retire them.
Reviewed by:	peter
2008-12-17 06:56:58 +00:00
Warner Losh
0e7faf3934 Remove obsolete AT_DEBUG stuff. It never should have been committed
in the first place, let alone migrated to linux emulation.

Reviewed by:	peter, rdivacky
2008-12-17 06:11:42 +00:00
Joseph Koshy
4e706fe392 Bug fix: %ebx needs to be preserved in the user callchain capture
path.
2008-12-14 09:06:28 +00:00
Joseph Koshy
6fe00c7876 - Bug fix: prevent a thread from migrating between CPUs between the
time it is marked for user space callchain capture in the NMI
  handler and the time the callchain capture callback runs.

- Improve code and control flow clarity by invoking hwpmc(4)'s user
  space callchain capture callback directly from low-level code.

Reviewed by:	jhb (kern/subr_trap.c)
Testing (various patch revisions): gnn,
		Fabien Thomas <fabien dot thomas at netasq dot com>,
		Artem Belevich <artemb at gmail dot com>
2008-12-13 13:07:12 +00:00
Jung-uk Kim
39e52304e0 Add more CPUID bits from AMD CPUID Specification Rev. 2.28. 2008-12-12 23:17:00 +00:00
Joseph Koshy
5abe7b5623 Expose symbol `PMC_FN_USER_CALLCHAIN' to assembler code. 2008-12-12 16:09:34 +00:00
John Baldwin
660f08b291 Add constants for fields in the local APIC error status register and a
routine to read it.
2008-12-11 15:56:30 +00:00
Alan Cox
e0d315046b Change the default value for the flag enabling superpage mapping and
promotion to "on".

Reminded by:	jhb
Tested by:	kris
2008-12-06 19:37:52 +00:00