Commit Graph

154160 Commits

Author SHA1 Message Date
Marcel Moolenaar
cc7a041c2b Disable interrupts when calling into SAL for PCI configuration
cycles. This serves 2 purposes:
1.  It prevents preemption and CPU migration while running SAL code.
2.  It reduces the chance of stack overflows: we're supposed to enter
    SAL with at least 16KB of either memory- or register stack space,
    which we can't do without switching to a different stack.
2010-03-22 03:06:11 +00:00
Marcel Moolenaar
c56153c577 Define curthread as an inline function that loads the thread pointer
directly from r13, the pcpu pointer. This guarantees correct behaviour
when the thread migrates to a different CPU.
2010-03-22 02:01:33 +00:00
Marcel Moolenaar
a5d64faeca Print MD fields in the pcpu to aid debugging. 2010-03-21 22:39:11 +00:00
Marcel Moolenaar
c50679660e Don't include <machine/_regset.h> when _MACHINE_REGSET_H_ in defined.
This is not for multiple inclusion purposes, because _regset.h already
handles this, but to enable inclusion of the MD header by cross-tools
on non-ia64 installations. The cross-tool can include _regset.h itself
before including MD headers that depend on it.
2010-03-21 22:33:09 +00:00
Edwin Groothuis
531a1a4b2c Replace -b with -C and -B (as proposed by Alexander).
Add -3, -A and -B to the usage.
Update regression test for the new parameters.
2010-03-21 21:33:21 +00:00
Olivier Houchard
504e4c2e74 Make sure we insert and remove the PV entries related to unmanaged kernel
mappings into the kernel pmap, not into the pmap related to the
pmap_enter_pv()/pmap_remove_pv() call.
2010-03-21 21:03:35 +00:00
Ed Schouten
070f2a9831 Let opendir() use O_DIRECTORY.
I am not removing the fstat() calls here, since we cannot yet assume
people will always run kernels that respect O_DIRECTORY.
2010-03-21 20:45:06 +00:00
Ed Schouten
0fef797f4a Actually make O_DIRECTORY work.
According to POSIX open() must return ENOTDIR when the path name does
not refer to a path name. Change vn_open() to respect this flag. This
also simplifies the Linuxolator a bit.
2010-03-21 20:43:23 +00:00
Alexander Motin
e67afc40da - Spec tells that CCC interrupt is edge triggered. Acknowledge it as such.
- Do not try to enable CCC if it is not supported.
2010-03-21 18:18:58 +00:00
Sam Leffler
a3ce3b49b7 remove pre-vap examples 2010-03-21 17:53:54 +00:00
Luigi Rizzo
3b4d8b3f7a Add a priority-based packet scheduler.
Sponsored by:	The ONELAB2 Project
Submitted by:	Riccardo Panicucci
2010-03-21 16:30:32 +00:00
Konstantin Belousov
40c05da5e0 Correct the type for uio_resid.
MFC after:	3 days
2010-03-21 16:14:19 +00:00
Luigi Rizzo
b4eacea680 no need for ipfw_flush_tables(), we just need ipfw_destroy_tables() 2010-03-21 15:54:07 +00:00
Luigi Rizzo
2baa9be5d7 revise documentation 2010-03-21 15:52:55 +00:00
Alexander Motin
b0423064be Add some more codec IDs. 2010-03-21 15:14:21 +00:00
Matt Jacob
b5dce617d8 Add 'rotate' and 'getactive' verbs to provide some control and information
about what the currently active path is.

Sponsored by:	Panasas
MFC after:	1 month
2010-03-21 15:02:47 +00:00
Ed Maste
d8564efde1 Avoid holding the VLAN_LOCK() over the parent interface SIOCGIFMEDIA
ioctl call, as it may sleep.

Reviewed by:	rwatson
2010-03-21 15:00:33 +00:00
Marius Strobl
be05bc3ffb Avoid aliasing which leads to incorrect results when compiling with the
default strict aliasing rules.

PR:		144900
Submitted by:	Peter Jeremy
MFC after:	3 days
2010-03-21 13:18:08 +00:00
Marius Strobl
07e6e81e2f - The firmware of Sun Fire V1280 has a misfeature of setting %wstate to
7 which corresponds to WSTATE_KMIX in OpenSolaris whenever calling into
  it which totally screws us even when restoring %wstate afterwards as
  spill/fill traps can happen while in OFW. The rather hackish OpenBSD
  approach of just setting the equivalent of WSTATE_KERNEL to 7 also is
  no option as we treat %wstate as a bit field. So in order to deal with
  this problem actually implement spill/fill handlers for %wstate 7 which
  just act as the WSTATE_KERNEL ones except of theoretically also handling
  32-bit, turn off interrupts completely so we don't even take IPIs while
  in OFW which should ensure we only take spill/fill traps at most and
  restore %wstate after calling into OFW once we have taken over the trap
  table. While at it, actually set WSTATE_{,PROM}_KMIX before calling into
  OFW just like OpenSolaris does, which should at least help testing this
  change on non-V1280.
- Remove comments referring to the %wstate usage in BSD/OS.
- Remove the no longer used RSF_ALIGN_RETRY macro.
- Correct some trap table addresses in comments.
- Ensure %wstate is set to WSTATE_KERNEL when taking over the trap table.
- Ensure PSTATE_AM is off when entering or exiting to OFW as well as that
  interrupts are also completely off when exiting to OFW as the firmware
  trap table shouldn't be used to handle our interrupts.
2010-03-21 13:09:54 +00:00
Alan Cox
d088493ba0 Eliminate a pointless TLB invalidation from pmap_bootstrap(). No mappings
whatsoever are changed between the earlier load_cr3() and this invalidation.
2010-03-21 00:21:59 +00:00
Alan Cox
cea8f9dfaf I am told by AMD that the machine check hardware on the instruction TLB
won't generate bogus exceptions.  Therefore, the implementation of the
"unofficial" workaround needn't mask L1TP errors by the instruction cache
unit.
2010-03-21 00:13:11 +00:00
Marius Strobl
c613313c10 Improve the KVA space sizing of 186682; on machines with large dTLBs we
can actually use all of the available lockable entries of the tiny dTLB
for the kernel TSB. With this change the KVA space sizing happens to be
more in line with the MI one so up to at least 24GB machines KVA doesn't
need to be limited manually. This is just another stopgap though, the
real solution is to take advantage of ASI_ATOMIC_QUAD_LDD_PHYS on CPUs
providing it so we don't need to lock the kernel TSB pages into the dTLB
in the first place.
2010-03-20 23:00:43 +00:00
Jilles Tjoelker
1e17fbd3d9 Do not create *.gmon files for PIE executables on i386.
Scrt1_c.o was accidentally compiled with -DGCRT (profiling), like gcrt1_c.o.
This problem is i386-specific, the other architectures are OK.

If you have problems with PIE executables such as samba and cups leaving
behind gmon files, rebuild them after installing this change.

PR:		ports/143924
Reviewed by:	kib
MFC after:	3 days
2010-03-20 22:58:54 +00:00
Marius Strobl
b28ad3ebc9 - While SPARC V9 allows tininess to be detected either before or after
rounding (impl. dep. #55), the SPARC JPS1 responsible for SPARC64 and
  UltraSPARC processors defines that in all cases tinyness is detected
  before rounding, therefore rounding up to the smallest normalised
  number should set the underflow flag.
- If an infinite result is rounded down, the result should have an
  exponent 1 less than the value for infinity.

PR:		144900
Submitted by:	Peter Jeremy
MFC after:	3 days
2010-03-20 22:32:13 +00:00
Marius Strobl
bd2ec8519e Division should take both arguments' signs into account when the
the dividend is infinity or zero and the divisor is not the same.

PR:		144900
Submitted by:	Peter Jeremy
MFC after:	3 days
2010-03-20 22:12:15 +00:00
Marius Strobl
484bacf4b9 FPU_DEBUG requires <stdio.h>.
PR:		144900
Submitted by:	Peter Jeremy
MFC after:	3 days
2010-03-20 21:27:44 +00:00
Marius Strobl
4dda9dfd81 Ensure that __fpu_ftox() both returns the high bits and res[1] contains
the low bits also in the default case.

PR:		144900
Obtained from:	OpenBSD
MFC after:	3 days
2010-03-20 21:15:56 +00:00
Marius Strobl
564b3fffdd - Remove a bogus forward declaration.
- Fix whitespace.
2010-03-20 21:04:47 +00:00
Kip Macy
87aedea449 - spread tcp timer callout load evenly across cpus if net.inet.tcp.per_cpu_timers is set to 1
- don't default to acquiring tcbinfo lock exclusively in rexmt

MFC after:	7 days
2010-03-20 19:47:30 +00:00
Gavin Atkinson
b01647a864 Fix command example, presumed leftovers of old markup.
MFC after:	1 week
2010-03-20 16:34:51 +00:00
Jaakko Heinonen
a41aa4a789 Escape characters unsafe for XML output in GEOM class, instance and
provider names.

- Characters in range 0x01-0x1f except '\t', '\n', and '\r' are replaced
  with '?'. Those characters are disallowed in XML.
- '&', '<', '>', '\'', '"' and characters in range 0x7f-0xff are
  replaced with XML numeric character reference.

If the kern.geom.confxml sysctl provides invalid XML, libgeom
geom_xml2tree() fails and utilities using it do not work. Unsafe
characters are common in msdosfs and cd9660 labels.

PR:		kern/104389
Submitted by:	Doug Steinwand (original version)
Reviewed by:	pjd
Discussed on:	freebsd-geom
MFC after:	3 weeks
2010-03-20 16:16:13 +00:00
Alexander Motin
50a8df3ce9 Correct MAXPHYS and DFLTPHYS description. 2010-03-20 15:30:26 +00:00
Gavin Atkinson
67d438ccb8 Tweak language to make one point potentially clearer for non-native spekers
PR:		bin/121424
Submitted by:	"Julian H. Stacey" <jhs berklix.org>
2010-03-20 14:42:16 +00:00
Nathan Whitehorn
cb8617b275 Revisit locking in the 64-bit AIM PMAP. The PVO head for a page is
generally protected by the VM page queue mutex. Instead of extending the
table lock to cover the PVO heads, add some asserts that the page queue
mutex is in fact held. This fixes several LORs and possible deadlocks.

This also adds an optimization to moea64_kextract() useful for
direct-mapped quantities, like UMA buffers. Being able to use this from
inside UMA removes an additional LOR.
2010-03-20 14:35:24 +00:00
Gavin Atkinson
a108555bcc Remove some stale entries from MAINTAINERS:
- aradford@amcc.com bounces.
 - gad said to drop pkill(1) and ps(1).
 - jmallett said to drop libufs.
 - joerg said to drop fdc(4) and sppp(4)

Submitted by:	linimon
Approved by:	gad, jmallett, joerg (via linimon)
2010-03-20 12:39:28 +00:00
Gavin Atkinson
0d0a5555c2 wollman@ has OK'd dropping his maintainership of zic(8)
Submitted by:	linimon
Approved by:	wollman (via linimon)
2010-03-20 11:05:11 +00:00
Ed Schouten
d7f1607c6a Chop off excessive long hostnames to keep the table structure intact.
This makes lastlogin(8) use exactly the same printf format as last(1).
2010-03-20 09:29:25 +00:00
Neel Natu
69a5a0bfea Sibyte provides a 64-bit read-only counter that counts at half the processor
frequency. This counter can be accessed coherently from both cores.

Use this as the preferred timecounter for the SWARM kernels.

The CP0 COUNT register is unusable as the timecounter on SMP platforms because
the COUNT registers on different CPUs are not guaranteed to be in sync.
2010-03-20 05:49:06 +00:00
Neel Natu
293f20dffb Make sure that the registers 'v0' and 'v1' are properly sign-extended
when sb_load64() returns.

Some 32-bit arithmetic operations (e.g. subu) have unpredicatable results
when operating on 64-bit registers that are not properly sign-extended.
2010-03-20 05:21:14 +00:00
Neel Natu
cf4459fb01 Get rid of unused macro MIPS_MEM_RID.
Suggested by: Alexandr Rybalko (ray@dlink.ua)
2010-03-20 05:10:44 +00:00
Neel Natu
de88808f0a This change enables use of physical memory that is beyond the direct
mapped kseg0 region.

The basic idea is to use KVA from the kseg2 region for mapping page
table pages that lie beyond the direct mapped region.

The TLB miss handler can now recursively fault into the TLB invalid
handler if it dereferences a kseg2 page table page address that is not
in the TLB.

Tested by: JC (c.jayachandran@gmail.com)
2010-03-20 05:07:15 +00:00
Alexander Motin
f81100fd11 Enable MSI by default for SiI3124. 2010-03-20 04:40:15 +00:00
Marcel Moolenaar
a5cef7a1ce Don't check for boot_verbose in the environment. The loader does
that already and sets RB_VERBOSE. The loader has always done it.
2010-03-20 04:22:22 +00:00
Nathan Whitehorn
d2f1e0e4a5 Let unin(4) attach to U3 controllers found on G5 machines.
Submitted by:	Andreas Tobler
2010-03-20 03:58:00 +00:00
Warner Losh
30e980f2d1 Add support for the Samsung S3C2xx0 family of ARM SoCs written by
Andrew Turner.  The kernel supports the LN2410SBC evaluation board,
and likely others.  These parts (or similar ones) are in some open
hardware designs for phones.

Submitted by:	Andrew Turner
2010-03-20 03:39:35 +00:00
Jung-uk Kim
ef8201d39d - Map EBDA if available and add 64KB above 1MB (high memory), just in case.
- Print the initial memory map when bootverbose is set.
- Change the page fault address format from linear to %cs:%ip style.
- Move duplicate code into a newly added function.
- Add strictly aligned memory access for distant future. ;-)
2010-03-19 21:15:43 +00:00
Pawel Jakub Dawidek
58804a192e The same code is used to import and to create pool.
The order of operations is the following:
1. Try to open vdev by remembered path and guid.
2. If 1 failed, try to find vdev which guid matches and ignore the path.
3. If 2 failed this means either that the vdev we're looking for is gone
   or that pool is being created and vdev doesn't contain proper guid yet.
   To be able to handle pool creation we open vdev by path anyway.

Because of 3 it is possible that we open wrong vdev on import which can lead to
confusions.

The solution for this is to check spa_load_state. On pool creation it will be
equal to SPA_LOAD_NONE and we can open vdev only by path immediately and if it
is not equal to SPA_LOAD_NONE we first open by path+guid and when that fails,
we open by guid. We no longer open wrong vdev on import.

MFC after:	2 weeks
2010-03-19 20:14:27 +00:00
Bjoern A. Zeeb
42eedeac00 Split eventhandler_register() into an internal part and a wrapper function
that provides the allocated and setup eventhandler entry.

Add a new wrapper for VIMAGE that allocates extra space to hold the
callback function and argument in addition to an extra wrapper function.
While the wrapper function goes as normal callback function the
argument points to the extra space allocated holding the original func
and arg that the wrapper function can then call.

Provide an iterator function for the virtual network stack (vnet) that
will call the callback function for each network stack.

Provide a new set of macros for VNET that in the non-VIMAGE case will
just call eventhandler_register() while in the VIMAGE case it will use
vimage_eventhandler_register() passing in the extra iterator function
but will only register once rather than per-vnet.
We need a special macro in case we are interested in the tag returned
as we must check for curvnet and can neither simply assign the
return value, nor not change it in the non-vnet0 case without that.

Sponsored by:	ISPsystem
Discussed with:	jhb
Reviewed by:	zec (earlier version), jhb
MFC after:	1 month
2010-03-19 19:51:03 +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
Ed Schouten
799c1824b1 Slightly improve my previous commit.
Just comment out the atrun line instead of completely removing it. It is
not a bad idea to leave it as a reference in case someone decides to
install atrun by hand afterwards.
2010-03-19 15:53:02 +00:00