Commit Graph

11765 Commits

Author SHA1 Message Date
Rui Paulo
05c100d21f Add EFI boot info fields. 2010-04-07 18:52:51 +00:00
Joel Dahl
8c14c16020 Switch to our preferred 2-clause BSD license.
Approved by:	jfv
2010-04-07 18:26:13 +00:00
Fabien Thomas
1fa7f10bac - Support for uncore counting events: one fixed PMC with the uncore
domain clock, 8 programmable PMC.
- Westmere based CPU (Xeon 5600, Corei7 980X) support.
- New man pages with events list for core and uncore.
- Updated Corei7 events with Intel 253669-033US December 2009 doc.
  There is some removed events in the documentation, they have been
  kept in the code but documented in the man page as obsolete.
- Offcore response events can be setup with rsp token.

Sponsored by: NETASQ
2010-04-02 13:23:49 +00:00
John Baldwin
90dfe31955 Add a handler for the local APIC error interrupt. For now it just prints
out the current value of the local APIC error register when the interrupt
fires.

MFC after:	1 week
2010-03-29 19:13:34 +00:00
Ed Schouten
510ea843ba Rename st_*timespec fields to st_*tim for POSIX 2008 compliance.
A nice thing about POSIX 2008 is that it finally standardizes a way to
obtain file access/modification/change times in sub-second precision,
namely using struct timespec, which we already have for a very long
time. Unfortunately POSIX uses different names.

This commit adds compatibility macros, so existing code should still
build properly. Also change all source code in the kernel to work
without any of the compatibility macros. This makes it all a less
ambiguous.

I am also renaming st_birthtime to st_birthtim, even though it was a
local extension anyway. It seems Cygwin also has a st_birthtim.
2010-03-28 13:13:22 +00:00
Alan Cox
3792de2e87 Correctly handle preemption of pmap_update_pde_invalidate().
X-MFC after:	r205573
2010-03-27 23:53:47 +00:00
Alan Cox
a57d0d8e1d Simplify pmap_growkernel(), making the i386 version more like the amd64
version.

MFC after:	3 weeks
2010-03-27 18:24:27 +00:00
Alan Cox
09fcdf114e A ptrace(2) by one processor may trigger a promotion in the address space
of another process.  Modify pmap_promote_pde() to handle this.  (This is
not a problem on amd64 due to implementation differences.)

Reported by:	jh@
MFC after:	1 week
2010-03-25 17:24:03 +00:00
Nathan Whitehorn
a107d8aac9 Change the arguments of exec_setregs() so that it receives a pointer
to the image_params struct instead of several members of that struct
individually. This makes it easier to expand its arguments in the future
without touching all platforms.

Reviewed by:	jhb
2010-03-25 14:24:00 +00:00
Alan Cox
e1990590e3 Adapt r204907 and r205402, the amd64 implementation of the workaround for
AMD Family 10h Erratum 383, to i386.

Enable machine check exceptions by default, just like r204913 for amd64.

Enable superpage promotion only if the processor actually supports large
pages, i.e., PG_PS.

MFC after:	2 weeks
2010-03-24 03:07:35 +00:00
John Baldwin
121b3af9f2 Remove unneeded type specifiers from 64-bit constants. The compiler
infers their natural type from the constants' values.

Submitted by:	bde
MFC after:	3 days
2010-03-22 15:08:26 +00:00
Ed Maste
d02e85a681 Merge r197455 from amd64:
Add a backtrace to the "fpudna in kernel mode!" case, to help track down
  where this comes from.

  Reviewed by:	bde
2010-03-22 11:52:53 +00:00
Xin LI
0d0284bc52 Back out revision 205307.
For the record:

CPU_ENABLE_SSE enables some code that dynamically enables SSE support
but not necessarily enforce execution of SSE instructions.
2010-03-19 16:09:57 +00:00
Andriy Gapon
9344361b66 pmap amd64/i386: fix a typo in a comment
MFC after:	3 days
2010-03-19 14:48:32 +00:00
John Baldwin
42c93b8d31 Use the same policy for rejecting / not-reject ACPI tables with incorrect
checksums as the base acpi(4) driver.  This fixes a problem where the MADT
parser would reject the MADT table during early boot causing the MP Table
to be, but then the acpi(4) driver would attach and use non-SMP interrupt
routing.

Tested by:	Alastair Hogge  agh of coolrhaug com
MFC after:	1 week
2010-03-19 12:43:18 +00:00
Xin LI
01af4cc1cc SSE is enabled by default about 5 years ago so there is no point pretending
that we support I486 and I586 CPUs in the GENERIC kernel, users wants these
support would have to build a custom kernel to explicitly disable SSE
anyways.

MFC after:	1 month
2010-03-19 01:16:53 +00:00
John Baldwin
a311ca2f45 - Extend the machine check record structure to include several fields useful
for parsing model-specific and other fields in machine check events
  including the global machine check capabilities and status registers,
  CPU identification, and the FreeBSD CPU ID.
- Report these added fields in the console log of a machine check so that
  a record structure can be reconstituted from the console messages.
- Parse new architectural errors including memory controller errors.

MFC after:	1 week
2010-03-16 16:01:19 +00:00
John Baldwin
c998036d71 Use unsigned long long constants for fields in 64-bit machine check
registers instead of unsigned long constants.

MFC after:	3 days
2010-03-16 15:27:58 +00:00
Ed Schouten
338f1debcd Remove COMPAT_43TTY from stock kernel configuration files.
COMPAT_43TTY enables the sgtty interface. Even though its exposure has
only been removed in FreeBSD 8.0, it wasn't used by anything in the base
system in FreeBSD 5.x (possibly even 4.x?). On those releases, if your
ports/packages are less than two years old, they will prefer termios
over sgtty.
2010-03-13 09:21:00 +00:00
John Baldwin
55c4e01602 Fix the previous attempt to fix kernel builds of HEAD on 7.x. Use the
__gnu_inline__ attribute for PMAP_INLINE when using the 7.x compiler to
match what 7.x uses for PMAP_INLINE.
2010-03-12 03:08:47 +00:00
John Baldwin
343803ad83 Print out the family and model from the cpu_id. This is especially useful
given the advent of the extended family and extended model fields.  The
values are printed in hex to match their common usage in documentation.

Submitted by:	Alexander Best
MFC after:	1 week
2010-03-11 14:17:37 +00:00
John Baldwin
cf684ede27 Make NKPT a kernel option on i386 so that it can be set to a non-default
value from kernel config files.

Tested by:	Charles Sprickman  spork of bway net
MFC after:	2 weeks
2010-03-10 19:50:52 +00:00
Konstantin Belousov
2a595a404f Fall back to wbinvd when region for CLFLUSH is >= 2MB.
Submitted by:	Kevin Day <toasty dragondata com>
Reviewed by:	jhb
MFC after:	2 weeks
2010-03-10 15:50:38 +00:00
Joel Dahl
1edcf74de7 The NetBSD Foundation has granted permission to remove clause 3 and 4 from
the software.

Obtained from:	NetBSD
2010-03-03 17:55:51 +00:00
Attilio Rao
306c0c6ea0 Improving the clocks auto-tunning by firstly checking if the atrtc may be
correctly initialized and just then assign to softclock/profclock.
Right now, some atrtc seems reporting strange diagnostic error* making the
current pattern bogus.

In order to do that cleanly, lapic_setup_clock(), on both ia32 and amd64,
now accepts as arguments the desired sources to handle, and returns the
actual ones (LAPIC_CLOCK_NONE is forbidden because otherwise there is no
meaning in calling such function).
This allows to bring out into commont x86 code the handling part for
machdep.lapic_allclocks tunable, which is retained.

Sponsored by:	Sandvine Incorporated
Tested by:	yongari, Richard Todd
		<rmtodd at ichotolot dot servalan dot com>
MFC:		3 weeks
X-MFC:		r202387, 204309
2010-03-03 17:13:29 +00:00
John Baldwin
977cb83962 Print the contents of the miscellaneous (MISC) register to the console if
it is valid along with the other register values when a machine check is
encountered.

MFC after:	1 week
2010-03-01 13:56:15 +00:00
Alan Cox
0b993ee5fd When running as a guest operating system, the FreeBSD kernel must assume
that the virtual machine monitor has enabled machine check exceptions.
Unfortunately, on AMD Family 10h processors the machine check hardware
has a bug (Erratum 383) that can result in a false machine check exception
when a superpage promotion occurs.  Thus, I am disabling superpage
promotion when the FreeBSD kernel is running as a guest operating system
on an AMD Family 10h processor.

Reviewed by:	jhb, kib
MFC after:	3 days
2010-02-27 18:00:57 +00:00
Attilio Rao
3258030144 Introduce the new kernel sub-tree x86 which should contain all the code
shared and generalized between our current amd64, i386 and pc98.

This is just an initial step that should lead to a more complete effort.
For the moment, a very simple porting of cpufreq modules, BIOS calls and
the whole MD specific ISA bus part is added to the sub-tree but ideally
a lot of code might be added and more shared support should grow.

Sponsored by:	Sandvine Incorporated
Reviewed by:	emaste, kib, jhb, imp
Discussed on:	arch
MFC:		3 weeks
2010-02-25 14:13:39 +00:00
Kip Macy
20f72e6f2f - fix bootstrap for variable KVA_PAGES
- remove unused CADDR1
- hold lock across page table update

MFC after:	3 days
2010-02-21 01:13:34 +00:00
Kip Macy
6f1b404676 remove atkbd from default config to avoid pulling in real-mode bios emulation 2010-02-21 01:06:07 +00:00
Ed Schouten
ddc534916d Allow the pmap code to be built with GCC from FreeBSD 7 again.
This patch basically gives us the best of both worlds. Instead of
forcing the compiler to emulate GNU-style inline semantics even though
we're using ISO C99, it will only use GNU-style inlining when the
compiler is configured that way (__GNUC_GNU_INLINE__).

Tested by:	jhb
2010-02-18 14:28:38 +00:00
Attilio Rao
c1210a7d97 Adjust style (following the already existing rules) for the newly
introduced option DEADLKRES.

Reported by:	danfe, julian, avg
2010-02-15 23:44:48 +00:00
Attilio Rao
88cbfa852e Add the options DEADLKRES (introducing the deadlock resolver thread) in
the 'debugging' section of any HEAD kernel and enable for the mainstream
ones, excluding the embedded architectures.
It may, of course, enabled on a case-by-case basis.

Sponsored by:	Sandvine Incorporated
Requested by:	emaste
Discussed with:	kib
2010-02-10 16:30:04 +00:00
Rebecca Cran
c7ea7c4618 Update documentation for the iwn and iwnfw drivers: they support the 1000, 5150, 6000 and 6050 devices too, with firmware modules for the 4965, 1000, 5000, 5150 and 6000.
Add documentation for mwl and all the wireless firmware drivers.

Approved by:	rrs (mentor)
2010-02-08 21:38:42 +00:00
Ed Schouten
790f66db55 Remove unused LIBCOMPAT keyword from syscalls.master. 2010-02-08 10:02:01 +00:00
Alan Cox
bda39c37f1 Change the default value for the flag enabling superpage mapping and
promotion to "on".
2010-02-01 17:36:48 +00:00
Robert Noland
b3e7ca23e7 Enable MTRR on all VIA CPUs that claim support.
This may not be entirely correct either, but the existing check is
bogus.  I have both a C3 and a C7 that fail this check, but work fine.

MFC after:	2 weeks
2010-01-31 14:35:49 +00:00
Robert Noland
b1ba33ffbe Welcome drm support for VIA unichrome chips.
MFC after:	2 weeks
2010-01-31 14:30:39 +00:00
Andriy Gapon
c4d16d268f add static qualifier to definition of a function already declared static
This is for improving code readibility only.

MFC after:	1 week
2010-01-29 10:20:11 +00:00
Alan Cox
b3021b932a Optimize pmap_demote_pde() by using the new KPTmap to access a kernel
page table page instead of creating a temporary mapping to it.

Set the PG_G bit on the page table entries that implement the KPTmap.

Locore initializes the unused portions of the NKPT kernel page table
pages that it allocates to zero.  So, pmap_bootstrap() needn't zero
the page table entries referenced by CMAP1 and CMAP3.

Simplify pmap_set_pg().

MFC after:	10 days
2010-01-27 18:33:22 +00:00
Alan Cox
cf3508519c Handle a race between pmap_kextract() and pmap_promote_pde(). This race is
known to cause a kernel crash in ZFS on i386 when superpage promotion is
enabled.

Tested by:	netchild
MFC after:	1 week
2010-01-23 18:42:28 +00:00
Konstantin Belousov
5b1162b964 For PT_TO_SCE stop that stops the ptraced process upon syscall entry,
syscall arguments are collected before ptracestop() is called. As a
consequence, debugger cannot modify syscall or its arguments.

For i386, amd64 and ia32 on amd64 MD syscall(), reread syscall number
and arguments after ptracestop(), if debugger modified anything in the
process environment. Since procfs stopeven requires number of syscall
arguments in p_xstat, this cannot be solved by moving stop/trace point
before argument fetching.

Move the code to read arguments into separate function
fetch_syscall_args() to avoid code duplication. Note that ktrace point
for modified syscall is intentionally recorded twice, once with original
arguments, and second time with the arguments set by debugger.

PT_TO_SCX stop is executed after cpu_syscall_set_retval() already.

Reported by:	Ali Polatel <alip exherbo org>
Briefly discussed with:	jhb
MFC after:	3 weeks
2010-01-23 11:45:35 +00:00
John Baldwin
13c18821fa Move the examples for the 'hints' and 'env' keywords from various GENERIC
kernel configs into NOTES.

Reviewed by:	imp
2010-01-19 17:20:34 +00:00
Ed Schouten
91bfd816f2 Recommit r193732:
Remove __gnu89_inline.

  Now that we use C99 almost everywhere, just use C99-style in the pmap
  code. Since the pmap code is the only consumer of __gnu89_inline, remove
  it from cdefs.h as well. Because the flag was only introduced 17 months
  ago, I don't expect any problems.

  Reviewed by:    alc

It was backed out, because it prevented us from building kernels using a
7.x compiler. Now that most people use 8.x, there is nothing that holds
us back. Even if people run 7.x, they should be able to build a kernel
if they run `make kernel-toolchain' or `make buildworld' first.
2010-01-19 15:31:18 +00:00
Attilio Rao
a7ccec946b - Allow clock subsystem to be compiled without the apic support [0]
- ATPIC, on pc98 is never defined somewhere, differently from i386.
  Turn its compilation to be conditional as i386 does. [1]

[0] Reported by:	nyan
[1] Submitted by:	nyan
2010-01-17 23:23:35 +00:00
Attilio Rao
a26cb6d547 Handling all the three clocks (hardclock, softclock, profclock) with the
LAPIC may lead to aliasing for softclock and profclock because frequencies
are sized in order to fit mainly hardclock.
atrtc used to take care of the softclock and profclock and it does still
do, if the LAPIC can't handle the clocks properly.

Revert the change when the LAPIC started taking charge of all three of
them and let atrtc handle softclock and profclock if not explicitly
requested. Such request can be made setting != 0 the new tunable
machdep.lapic_allclocks or if the new device ATPIC is not present
within the i386 kernel config (atrtc is linked to atpic presence).

Diagnosed by:	Sandvine Incorporated
Reviewed by:	jhb, emaste
Sponsored by:	Sandvine Incorporated
MFC:		3 weeks
2010-01-15 16:04:30 +00:00
Brooks Davis
9126964cdb Only allocate the space we need before calling kern_getgroups instead
of allocating what ever the user asks for up to "ngroups_max + 1".  On
systems with large values of kern.ngroups this will be more efficient.

The now redundant check that the array is large enough in
kern_getgroups() is deliberate to allow this change to be merged to
stable/8 without breaking potential third party consumers of the API.

Reported by:	bde
MFC after:	28 days
2010-01-15 07:18:46 +00:00
Gavin Atkinson
7964930201 Spell "Hz" correctly wherever it is user-visible.
PR:		bin/142566
Submitted by:	N.J. Mann   njm njm.me.uk
Approved by:	ed (mentor)
MFC after:	2 weeks
2010-01-12 17:59:58 +00:00
Brooks Davis
412f9500e2 Replace the static NGROUPS=NGROUPS_MAX+1=1024 with a dynamic
kern.ngroups+1.  kern.ngroups can range from NGROUPS_MAX=1023 to
INT_MAX-1.  Given that the Windows group limit is 1024, this range
should be sufficient for most applications.

MFC after:	1 month
2010-01-12 07:49:34 +00:00
Marcel Moolenaar
409a390c33 Use io(4) for I/O port access on ia64, rather than through sysarch(2).
I/O port access is implemented on Itanium by reading and writing to a
special region in memory. To hide details and avoid misaligned memory
accesses, a process did I/O port reads and writes by making a MD system
call. There's one fatal problem with this approach: unprivileged access
was not being prevented. /dev/io serves that purpose on amd64/i386, so
employ it on ia64 as well. Use an ioctl for doing the actual I/O and
remove the sysarch(2) interface.

Backward compatibility is not being considered. The sysarch(2) approach
was added to support X11, but support for FreeBSD/ia64 was never fully
implemented in X11. Thus, nothing gets broken that didn't need more work
to begin with.

MFC after:	1 week
2010-01-11 18:10:13 +00:00