Commit Graph

11255 Commits

Author SHA1 Message Date
alc
493038bc03 Correct an error in pmap_change_attr()'s initial loop that verifies that the
given range of addresses are mapped.  Previously, the loop was testing the
same address every time.

Submitted by:	Magesh Dhasayyan
2008-07-18 22:05:51 +00:00
alc
07ead18715 Simplify pmap_extract()'s control flow, making it more like the related
functions pmap_extract_and_hold() and pmap_kextract().
2008-07-18 20:07:50 +00:00
alc
d4de04e9b1 Update bus_dmamem_alloc()'s first call to malloc() such that M_WAITOK is
specified when appropriate.

Reviewed by:	scottl
2008-07-15 03:34:49 +00:00
ed
a8f4e95b68 Make uart(4) the default serial port driver on i386 and amd64.
The uart(4) driver has the advantage of supporting a wider variety of
hardware on a greater amount of platforms. This driver has already been
the standard on platforms such as ia64, powerpc and sparc64.

I've decided not to change anything on pc98. I'd rather let people from
the pc98 team look at this.

Approved by:	philip (mentor), marcel
2008-07-13 07:20:14 +00:00
delphij
cb283fcdf7 Add HWPMC_HOOKS to GENERIC kernels, this makes hwpmc.ko work out
of the box.
2008-07-07 22:55:11 +00:00
alc
64ef3ee8e5 In FreeBSD 7.0 and beyond, pmap_growkernel() should pass VM_ALLOC_INTERRUPT
to vm_page_alloc() instead of VM_ALLOC_SYSTEM.  VM_ALLOC_SYSTEM was the
logical choice before FreeBSD 7.0 because VM_ALLOC_INTERRUPT could not
reclaim a cached page.  Simply put, there was no ordering between
VM_ALLOC_INTERRUPT and VM_ALLOC_SYSTEM as to which "dug deeper" into the
cache and free queues.  Now, there is; VM_ALLOC_INTERRUPT dominates
VM_ALLOC_SYSTEM.

While I'm here, teach pmap_growkernel() to request a prezeroed page.

MFC after:	1 week
2008-07-07 17:25:09 +00:00
rwatson
051819b847 Introduce a new lock, hostname_mtx, and use it to synchronize access
to global hostname and domainname variables.  Where necessary, copy
to or from a stack-local buffer before performing copyin() or
copyout().  A few uses, such as in cd9660 and daemon_saver, remain
under-synchronized and will require further updates.

Correct a bug in which a failed copyin() of domainname would leave
domainname potentially corrupted.

MFC after:	3 weeks
2008-07-05 13:10:10 +00:00
jhb
a495f456d1 Remove the sbni(4) driver. No one responded to calls to test it on
current@ and stable@.
2008-07-04 21:06:57 +00:00
jhb
026267261c Remove the oltr(4) driver. No one responded to calls for testing on
current@ and stable@ for the locking patches.  The driver can always be
revived if someone tests it.

This driver also sleeps in its if_init routine, so it likely doesn't really
work at all anyway in modern releases.
2008-07-04 18:58:53 +00:00
jhb
cb0b8573c7 Remove the arl(4) driver. It is reported to not work on 6.x or later
even though the driver hasn't changed since 4.x (last known working
release).
2008-07-04 18:15:36 +00:00
alc
3f80ced8f0 Eliminate an unused declaration. (In fact, the declaration is bogus
because the variable is defined static to pmap.c on i386.)

Found by: CScout
2008-07-04 17:36:12 +00:00
ed
60aa8a602b Remove the unused M_MEMDEV from the kernel.
The M_MEMDEV memory allocation pool does not seem to be used. We can
live without it.

Approved by:	philip (mentor)
2008-06-25 07:52:10 +00:00
ed
4d6a9685e8 Remove the unused major/minor numbers from iodev and memdev.
Now that st_rdev is being automatically generated by the kernel, there
is no need to define static major/minor numbers for the iodev and
memdev. We still need the minor numbers for the memdev, however, to
distinguish between /dev/mem and /dev/kmem.

Approved by:	philip (mentor)
2008-06-25 07:45:31 +00:00
jkim
47cf9c39e7 Emit opcodes closer to GNU as(1) generated codes and micro-optimize. 2008-06-24 20:12:44 +00:00
jkim
29b8978e1f Rehash and clean up BPF JIT compiler macros to match AT&T notations. 2008-06-23 23:10:11 +00:00
delphij
ee624c02de Add et(4), a port of DragonFly's Agere ET1310 10/100/Gigabit
Ethernet device driver, written by sephe@

Obtained from:	DragonFly
Sponsored by:	iXsystems
MFC after:	2 weeks
2008-06-20 19:28:33 +00:00
wkoszek
813c6fb348 Remove obselete PECOFF image activator support.
PRs assigned at the time of removal:    kern/80742

Discussed on:   freebsd-current (silence), IRC
Tested by:      make universe
Approved by:    cognet (mentor)
2008-06-14 12:51:44 +00:00
ed
1bfc292986 Don't enforce unique device minor number policy anymore.
Except for the case where we use the cloner library (clone_create() and
friends), there is no reason to enforce a unique device minor number
policy. There are various drivers in the source tree that allocate unr
pools and such to provide minor numbers, without using them themselves.

Because we still need to support unique device minor numbers for the
cloner library, introduce a new flag called D_NEEDMINOR. All cdevsw's
that are used in combination with the cloner library should be marked
with this flag to make the cloning work.

This means drivers can now freely use si_drv0 to store their own flags
and state, making it effectively the same as si_drv1 and si_drv2. We
still keep the minor() and dev2unit() routines around to make drivers
happy.

The NTFS code also used the minor number in its hash table. We should
not do this anymore. If the si_drv0 field would be changed, it would no
longer end up in the same list.

Approved by:	philip (mentor)
2008-06-11 18:55:19 +00:00
jhb
9d81809b1f After probing the available frequency settings, restore the CPU to run at
whatever frequency it started at instead of always picking the highest
frequency.  The first version of this driver attempted to do this, but it
set the speed to the first frequency in the list rather than the value it
had saved.

MFC after:	1 week
Discussed with:	rpaulo, phk
2008-05-30 22:01:09 +00:00
yongari
2643dd65cd Add jme(4) to the list of drivers supported by GENERIC kernel. 2008-05-27 02:22:32 +00:00
bz
6bba9b4244 Remove ISDN4BSD (I4B) from HEAD as it is not MPSAFE and
parts relied on the now removed NET_NEEDS_GIANT.
Most of I4B has been disconnected from the build
since July 2007 in HEAD/RELENG_7.

This is what was removed:
- configuration in /etc/isdn
- examples
- man pages
- kernel configuration
- sys/i4b (drivers, layers, include files)
- user space tools
- i4b support from ppp
- further documentation

Discussed with: rwatson, re
2008-05-26 10:40:09 +00:00
attilio
4789bb5715 style fix for newly introduced macro. 2008-05-25 14:50:47 +00:00
bz
91ff240d1e Restore buildable state. Style ignored.
Leave IDTVEC(ill) where it was unless we compile with KDTRACE_HOOKS[1].
Hide the with DTRACE case case under #ifdef KDTRACE_HOOKS.

Suggested by:	attilio [1]
Reviewed by:	attilio
2008-05-24 19:29:02 +00:00
jb
5ca78c67db Add a cyclic hook for DTrace. 2008-05-24 06:27:54 +00:00
jb
afeacbb0ca Add the DTrace hooks for exception handling (Function boundary trace
-fbt- provider), cyclic clock and syscalls.
2008-05-24 06:27:02 +00:00
alc
964def13e2 The VM system no longer uses setPQL2(). Remove it and its helpers. 2008-05-23 04:03:54 +00:00
obrien
89252b28ac Use the "options " spelling (vs. "options<TAB>") so that commented lines
line up nicely.
2008-05-21 03:36:53 +00:00
yongari
11daf29917 Add age(4) to the list of drivers supported by GENERIC kernel. 2008-05-19 02:30:27 +00:00
jb
c2a24c298d Remove the unknown device that is breaking the tinderbox build. 2008-05-18 11:08:26 +00:00
alc
a8f81206ad Retire pmap_addr_hint(). It is no longer used. 2008-05-18 04:16:57 +00:00
remko
91e9f2c6be Resort the if_ti driver to match the PCI Network cards instead of placing
it under the mii devices list.

PR:		kern/123147
Submitted by:	gavin
Approved by:	imp (mentor, implicit)
MFC after:	3 days
2008-05-17 23:50:00 +00:00
attilio
bc6974a05b Removed unused assembly offsets for structures digging. 2008-05-16 13:23:47 +00:00
rdivacky
faae559cb1 Regen.
Approved by:	kib (mentor)
2008-05-13 20:02:26 +00:00
rdivacky
13cbd9c97e Implement robust futexes. Most of the code is modelled after
what Linux does. This is because robust futexes are mostly
userspace thing which we cannot alter. Two syscalls maintain
pointer to userspace list and when process exits a routine
walks this list waking up processes sleeping on futexes
from that list.

Reviewed by:	kib (mentor)
MFC after:	1 month
2008-05-13 20:01:27 +00:00
alc
9fed63a445 Correct an error in pmap_align_superpage(). Specifically, correctly
handle the case where the mapping is greater than a superpage in size
but the alignment of the physical pages spans a superpage boundary.
2008-05-11 20:33:47 +00:00
alc
9e8bccea75 Introduce pmap_align_superpage(). It increases the starting virtual
address of the given mapping if a different alignment might result in more
superpage mappings.
2008-05-09 16:48:07 +00:00
sam
39c0719a2e enable IEEE80211_DEBUG and IEEE80211_AMPDU_AGE by default 2008-05-03 17:05:38 +00:00
rpaulo
bc47fb57ef Remove unused variable saved_id16.
Pointy hat to:	me
Pointed out by:	jhb
MFC after:	1 week
2008-05-02 10:16:41 +00:00
sam
8bf6f34fe9 Intel 4965 wireless driver (derived from openbsd driver of the same name) 2008-04-29 21:36:17 +00:00
alc
fc2ca88c2c Always use PG_PS_FRAME to extract the physical address of a 2/4MB page
from a PDE.
2008-04-25 16:00:39 +00:00
jeff
14b586bf96 - Add an integer argument to idle to indicate how likely we are to wake
from idle over the next tick.
 - Add a new MD routine, cpu_wake_idle() to wakeup idle threads who are
   suspended in cpu specific states.  This function can fail and cause the
   scheduler to fall back to another mechanism (ipi).
 - Implement support for mwait in cpu_idle() on i386/amd64 machines that
   support it.  mwait is a higher performance way to synchronize cpus
   as compared to hlt & ipis.
 - Allow selecting the idle routine by name via sysctl machdep.idle.  This
   replaces machdep.cpu_idle_hlt.  Only idle routines supported by the
   current machine are permitted.

Sponsored by:	Nokia
2008-04-25 05:18:50 +00:00
rdivacky
dd1e82ea4d Implement linux_truncate64() syscall.
Tested by:	Aline de Freitas <aline@riseup.net>
Approved by:	kib (mentor)
2008-04-23 15:56:33 +00:00
phk
8d647da1ed Now that all platforms use genclock, shuffle things around slightly
for better structure.

Much of this is related to <sys/clock.h>, which should really have
been called <sys/calendar.h>, but unless and until we need the name,
the repocopy can wait.

In general the kernel does not know about minutes, hours, days,
timezones, daylight savings time, leap-years and such.  All that
is theoretically a matter for userland only.

Parts of kernel code does however care: badly designed filesystems
store timestamps in local time and RTC chips almost universally
track time in a YY-MM-DD HH:MM:SS format, and sometimes in local
timezone instead of UTC.  For this we have <sys/clock.h>

<sys/time.h> on the other hand, deals with time_t, timeval, timespec
and so on.  These know only seconds and fractions thereof.

Move inittodr() and resettodr() prototypes to <sys/time.h>.
Retain the names as it is one of the few surviving PDP/VAX references.

Move startrtclock() to <machine/clock.h> on relevant platforms, it
is a MD call between machdep.c/clock.c.  Remove references to it
elsewhere.

Remove a lot of unnecessary <sys/clock.h> includes.

Move the machdep.disable_rtc_set sysctl to subr_rtc.c where it belongs.
XXX: should be kern.disable_rtc_set really, it's not MD.
2008-04-22 19:38:30 +00:00
sam
3569e353ca Multi-bss (aka vap) support for 802.11 devices.
Note this includes changes to all drivers and moves some device firmware
loading to use firmware(9) and a separate module (e.g. ral).  Also there
no longer are separate wlan_scan* modules; this functionality is now
bundled into the wlan module.

Supported by:	Hobnob and Marvell
Reviewed by:	many
Obtained from:	Atheros (some bits)
2008-04-20 20:35:46 +00:00
sam
682b4ae9be move awi to the Attic; it will not make the jump to the new world order
Reviewed by:	imp
2008-04-20 19:20:39 +00:00
jeff
b82673ba40 - Add inlines for the monitor and mwait instructions.
Sponsored by:	Nokia
2008-04-18 05:47:56 +00:00
jkim
e0c673b7e2 Regenerate. 2008-04-16 19:27:36 +00:00
jkim
513781a1c1 Add stubs for syscalls introduced in Linux 2.6.17 kernel.
Some GNU libc version started using them before 2.6.17 was officially out.

MFC after:	3 days
2008-04-16 19:25:39 +00:00
phk
bd75233fb4 Convert amd64 and i386 to share the atrtc device driver. 2008-04-14 08:00:00 +00:00
phk
2fcca203d7 Move i386 to generic RTC handling code.
Make clock_if.m and subr_rtc.c standard on i386

Add hints for "atrtc" driver, for non-PnP, non-ACPI systems.
NB: Make sure to install GENERIC.hints into /boot/device.hints in these!

Nuke MD inittodr(), resettodr() functions.

Don't attach to PHP0B00 in the "attimer" dummy driver any more, and remove
comments that no longer apply for that reason.

Add new "atrtc" device driver, which handles IBM PC AT Real Time
Clock compatible devices using subr_rtc and clock_if.

This driver is not entirely clean: other code still fondles the
hardware to get a statclock interrupt on non-ACPI timer systems.

Wrap some overly long lines.

After it has settled in -current, this will be ported to amd64.

Technically this is MFC'able, but I fail to see a good reason.
2008-04-12 20:46:06 +00:00