Robert Richter [Wed, 6 Oct 2010 10:27:54 +0000 (12:27 +0200)]
apic, x86: Use BIOS settings for IBS and MCE threshold interrupt LVT offsets
We want the BIOS to setup the EILVT APIC registers. The offsets
were hardcoded and BIOS settings were overwritten by the OS.
Now, the subsystems for MCE threshold and IBS determine the LVT
offset from the registers the BIOS has setup. If the BIOS setup
is buggy on a family 10h system, a workaround enables IBS. If
the OS determines an invalid register setup, a "[Firmware Bug]:
" error message is reported.
We need this change also for upcomming cpu families.
Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <
1286360874-1471-3-git-send-email-robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Robert Richter [Wed, 6 Oct 2010 10:27:53 +0000 (12:27 +0200)]
apic, x86: Check if EILVT APIC registers are available (AMD only)
This patch implements checks for the availability of LVT entries
(APIC500-530) and reserves it if used. The check becomes
necessary since we want to let the BIOS provide the LVT offsets.
The offsets should be determined by the subsystems using it
like those for MCE threshold or IBS. On K8 only offset 0
(APIC500) and MCE interrupts are supported. Beginning with
family 10h at least 4 offsets are available.
Since offsets must be consistent for all cores, we keep track of
the LVT offsets in software and reserve the offset for the same
vector also to be used on other cores. An offset is freed by
setting the entry to APIC_EILVT_MASKED.
If the BIOS is right, there should be no conflicts. Otherwise a
"[Firmware Bug]: ..." error message is generated. However, if
software does not properly determines the offsets, it is not
necessarily a BIOS bug.
Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <
1286360874-1471-2-git-send-email-robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Wed, 20 Oct 2010 02:38:56 +0000 (04:38 +0200)]
Merge branch 'linus' into irq/core
Merge reason: update to almost-final-.36
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Yinghai Lu [Mon, 18 Oct 2010 20:47:48 +0000 (13:47 -0700)]
x86: ioapic: Call free_irte only if interrupt remapping enabled
On a system that support intr-rempping when booting with "intremap=off"
[ 177.895501] BUG: unable to handle kernel NULL pointer dereference at
00000000000000f8
[ 177.913316] IP: [<
ffffffff8145fc18>] free_irte+0x47/0xc0
...
[ 178.173326] Call Trace:
[ 178.173574] [<
ffffffff810515b4>] destroy_irq+0x3a/0x75
[ 178.192934] [<
ffffffff81051834>] arch_teardown_msi_irq+0xe/0x10
[ 178.193418] [<
ffffffff81458dc3>] arch_teardown_msi_irqs+0x56/0x7f
[ 178.213021] [<
ffffffff81458e79>] free_msi_irqs+0x8d/0xeb
Call free_irte only when interrupt remapping is enabled.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <
4CBCB274.
7010108@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linus Torvalds [Sun, 17 Oct 2010 16:38:08 +0000 (09:38 -0700)]
Merge branch 'fix/misc' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'fix/misc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: rawmidi: fix oops (use after free) when unloading a driver module
Clemens Ladisch [Fri, 15 Oct 2010 10:06:18 +0000 (12:06 +0200)]
ALSA: rawmidi: fix oops (use after free) when unloading a driver module
When a driver module is unloaded and the last still open file is a raw
MIDI device, the card and its devices will be actually freed in the
snd_card_file_remove() call when that file is closed. Afterwards, rmidi
and rmidi->card point into freed memory, so the module pointer is likely
to be garbage.
(This was introduced by commit
9a1b64caac82aa02cb74587ffc798e6f42c6170a.)
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-by: Krzysztof Foltman <wdev@foltman.com>
Cc: 2.6.30-2.6.35 <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Thomas Gleixner [Sat, 16 Oct 2010 19:17:08 +0000 (21:17 +0200)]
arm: Use ARCH_IRQ_INIT_FLAGS
The core code now initializes the requested number of interrupts and
sets the flags in irq_desc.status which are requested by the
architecture via ARCH_IRQ_INIT_FLAGS.
Add ARCH_IRQ_INIT_FLAGS and remove the loop which sets those flags
after the irq descriptors are allocated.
[ This patch should have been in the original irq rework and got
dropped accidentaly ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Anand Gadiyar <gadiyar@ti.com>
Anand Gadiyar [Thu, 14 Oct 2010 17:29:57 +0000 (22:59 +0530)]
genirq, ARM: Fix boot on ARM platforms
Commit
b683de2b3 in linux-next as of
20101014 (genirq: Query
arch for number of early descriptors) seems to have broken
bootup on several ARM boards - my beagleboard gives the
following dump with earlyprintk:
NR_IRQS:402
Unable to handle kernel NULL pointer dereference at virtual
address
00000028 pgd =
c0004000
[
00000028] *pgd=
00000000
Internal error: Oops: 5 [#1]
last sysfs file:
Modules linked in:
CPU: 0 Not tainted
(2.6.36-rc7-next-
20101014-linux-next-
20101012+ #40) PC is at
init_IRQ+0x14/0x48 LR is at start_kernel+0x150/0x2c0
[...]
We seem to be using desc->status without assigning desc to
anything. Fix this by adding back the code that was originally
there.
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Tested-by: Linus Walleij <linus.walleij@stericsson.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
LKML-Reference: <
1287077397-21781-1-git-send-email-gadiyar@ti.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Kyle McMartin [Sat, 16 Oct 2010 01:17:16 +0000 (21:17 -0400)]
m32r: test __LITTLE_ENDIAN__ instead of __LITTLE_ENDIAN
Fixes build for me... these are what's tested in byteorder.h...
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kyle McMartin [Sat, 16 Oct 2010 01:17:13 +0000 (21:17 -0400)]
m32r: add kernel/.gitignore and ignore vmlinux.lds
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kyle McMartin [Sat, 16 Oct 2010 01:17:09 +0000 (21:17 -0400)]
m32r: get_user takes an lvalue, not a pointer
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Acked-by: Al "my fuckup" Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kyle McMartin [Sat, 16 Oct 2010 01:16:45 +0000 (21:16 -0400)]
m32r: restore _BLOCKABLE
Commit
a7f8388e accidentally removed it... Al explains:
"Sorry, reordering breakage. In the signals tree here I have
static inline void sig_set_blocked(struct sigset_t *set)
...
and it's used all over the place (including quite a few places where
we currently have sigprocmask(SIG_SETMASK, set, NULL), which is what
it's equivalent to). With that done, m32r doesn't use _BLOCKABLE
anywhere, so it got removed. And that chunk got picked when I'd been
reordering the queue to pull the arch-specific fixes in front.
Sorry."
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Paris [Fri, 15 Oct 2010 21:34:14 +0000 (14:34 -0700)]
types.h: define __aligned_u64 and expose to userspace
We currently have a kernel internal type called aligned_u64 which aligns
__u64's on 8 bytes boundaries even on systems which would normally align
them on 4 byte boundaries. This patch creates a new type __aligned_u64
which does the same thing but which is exposed to userspace rather than
being kernel internal.
[akpm: merge early as both the net and audit trees want this]
[akpm@linux-foundation.org: enhance the comment describing the reasons for using aligned_u64. Via Andreas and Andi.]
Based-on-patch-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: Jan Engelhardt <jengelh@medozas.de>
Cc: David Miller <davem@davemloft.net>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Fri, 15 Oct 2010 21:34:13 +0000 (14:34 -0700)]
uml: fix build
Fix a build error introduced by
d6d1b650ae6acce73d55dd024 ("param: simple
locking for sysfs-writable charp parameters").
CC arch/um/kernel/trap.o
arch/um/drivers/hostaudio_kern.c: In function 'hostaudio_open':
arch/um/drivers/hostaudio_kern.c:204: error: '__param_dsp' undeclared (first use in this function)
arch/um/drivers/hostaudio_kern.c:204: error: (Each undeclared identifier is reported only once
arch/um/drivers/hostaudio_kern.c:204: error: for each function it appears in.)
arch/um/drivers/hostaudio_kern.c: In function 'hostmixer_open_mixdev':
arch/um/drivers/hostaudio_kern.c:265: error: '__param_mixer' undeclared (first use in this function)
arch/um/drivers/hostaudio_kern.c:272: error: '__param_dsp' undeclared (first use in this function)
Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Tested-by: Toralf Förster <toralf.foerster@gmx.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Dumazet [Fri, 15 Oct 2010 21:34:12 +0000 (14:34 -0700)]
sysctl: min/max bounds are optional
sysctl check complains with a WARN() when proc_doulongvec_minmax() or
proc_doulongvec_ms_jiffies_minmax() are used by a vector of longs (with
more than one element), with no min or max value specified.
This is unexpected, given we had a bug on this min/max handling :)
Reported-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: David Miller <davem@davemloft.net>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 15 Oct 2010 17:18:36 +0000 (10:18 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: sdio: fix SDIO suspend/resume regression
Ohad Ben-Cohen [Wed, 13 Oct 2010 07:31:56 +0000 (09:31 +0200)]
mmc: sdio: fix SDIO suspend/resume regression
Fix SDIO suspend/resume regression introduced by
4c2ef25fe0b "mmc: fix
all hangs related to mmc/sd card insert/removal during suspend/resume":
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.01 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
Suspending console(s) (use no_console_suspend to debug)
pm_op(): platform_pm_suspend+0x0/0x5c returns -38
PM: Device pxa2xx-mci.0 failed to suspend: error -38
PM: Some devices failed to suspend
4c2ef25fe0b moved the card removal/insertion mechanism out of MMC's
suspend/resume path and into pm notifiers (mmc_pm_notify), and that
broke SDIO's expectation that mmc_suspend_host() will remove the card,
and squash the error, in case -ENOSYS is returned from the bus suspend
handler (mmc_sdio_suspend() in this case).
mmc_sdio_suspend() is using this whenever at least one of the card's SDIO
function drivers does not have suspend/resume handlers - in that case
it is agreed to force removal of the entire card.
This patch fixes this regression by trivially bringing back that part of
mmc_suspend_host(), which was removed by
4c2ef25fe0b.
Reported-and-tested-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: <stable@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Chris Ball <cjb@laptop.org>
Linus Torvalds [Fri, 15 Oct 2010 16:50:03 +0000 (09:50 -0700)]
Merge branch 'timers-for-linus-urgent' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
hrtimer: Preserve timer state in remove_hrtimer()
Linus Torvalds [Fri, 15 Oct 2010 16:49:43 +0000 (09:49 -0700)]
Merge branch 'upstream-fixes' of git://git./linux/kernel/git/jikos/hid
* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: Add Cando touch screen 15.6-inch product id
HID: Add MULTI_INPUT quirk for turbox/mosart touchscreen
HID: hidraw, fix a NULL pointer dereference in hidraw_write
HID: hidraw, fix a NULL pointer dereference in hidraw_ioctl
Linus Torvalds [Fri, 15 Oct 2010 16:49:16 +0000 (09:49 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
ubd: fix incorrect sector handling during request restart
ps3disk: passing wrong variable to bvec_kunmap_irq()
Tejun Heo [Fri, 15 Oct 2010 10:56:21 +0000 (12:56 +0200)]
ubd: fix incorrect sector handling during request restart
Commit
f81f2f7c (ubd: drop unnecessary rq->sector manipulation)
dropped request->sector manipulation in preparation for global request
handling cleanup; unfortunately, it incorrectly assumed that the
updated sector wasn't being used.
ubd tries to issue as many requests as possible to io_thread. When
issuing fails due to memory pressure or other reasons, the device is
put on the restart list and issuing stops. On IO completion, devices
on the restart list are scanned and IO issuing is restarted.
ubd issues IOs sg-by-sg and issuing can be stopped in the middle of a
request, so each device on the restart queue needs to remember where
to restart in its current request. ubd needs to keep track of the
issue position itself because,
* blk_rq_pos(req) is now updated by the block layer to keep track of
_completion_ position.
* Multiple io_req's for the current request may be in flight, so it's
difficult to tell where blk_rq_pos(req) currently is.
Add ubd->rq_pos to keep track of the issue position and use it to
correctly restart io_req issue.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Richard Weinberger <richard@nod.at>
Tested-by: Richard Weinberger <richard@nod.at>
Tested-by: Chris Frey <cdfrey@foursquare.net>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Linus Torvalds [Fri, 15 Oct 2010 02:15:28 +0000 (19:15 -0700)]
Export dump_{write,seek} to binary loader modules
If you build aout support as a module, you'll want these exported.
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 14 Oct 2010 23:26:43 +0000 (16:26 -0700)]
Linux 2.6.36-rc8
Linus Torvalds [Thu, 14 Oct 2010 21:32:06 +0000 (14:32 -0700)]
Un-inline the core-dump helper functions
Tony Luck reports that the addition of the access_ok() check in commit
0eead9ab41da ("Don't dump task struct in a.out core-dumps") broke the
ia64 compile due to missing the necessary header file includes.
Rather than add yet another include (<asm/unistd.h>) to make everything
happy, just uninline the silly core dump helper functions and move the
bodies to fs/exec.c where they make a lot more sense.
dump_seek() in particular was too big to be an inline function anyway,
and none of them are in any way performance-critical. And we really
don't need to mess up our include file headers more than they already
are.
Reported-and-tested-by: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 14 Oct 2010 18:19:44 +0000 (11:19 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
ehea: Fix a checksum issue on the receive path
net: allow FEC driver to use fixed PHY support
tg3: restore rx_dropped accounting
b44: fix carrier detection on bind
net: clear heap allocations for privileged ethtool actions
NET: wimax, fix use after free
ATM: iphase, remove sleep-inside-atomic
ATM: mpc, fix use after free
ATM: solos-pci, remove use after free
net/fec: carrier off initially to avoid root mount failure
r8169: use device model DMA API
r8169: allocate with GFP_KERNEL flag when able to sleep
Linus Torvalds [Thu, 14 Oct 2010 17:57:40 +0000 (10:57 -0700)]
Don't dump task struct in a.out core-dumps
akiphie points out that a.out core-dumps have that odd task struct
dumping that was never used and was never really a good idea (it goes
back into the mists of history, probably the original core-dumping
code). Just remove it.
Also do the access_ok() check on dump_write(). It probably doesn't
matter (since normal filesystems all seem to do it anyway), but he
points out that it's normally done by the VFS layer, so ...
[ I suspect that we should possibly do "vfs_write()" instead of
calling ->write directly. That also does the whole fsnotify and write
statistics thing, which may or may not be a good idea. ]
And just to be anal, do this all for the x86-64 32-bit a.out emulation
code too, even though it's not enabled (and won't currently even
compile)
Reported-by: akiphie <akiphie@lavabit.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Salman Qazi [Tue, 12 Oct 2010 14:25:19 +0000 (07:25 -0700)]
hrtimer: Preserve timer state in remove_hrtimer()
The race is described as follows:
CPU X CPU Y
remove_hrtimer
// state & QUEUED == 0
timer->state = CALLBACK
unlock timer base
timer->f(n) //very long
hrtimer_start
lock timer base
remove_hrtimer // no effect
hrtimer_enqueue
timer->state = CALLBACK |
QUEUED
unlock timer base
hrtimer_start
lock timer base
remove_hrtimer
mode = INACTIVE
// CALLBACK bit lost!
switch_hrtimer_base
CALLBACK bit not set:
timer->base
changes to a
different CPU.
lock this CPU's timer base
The bug was introduced with commit
ca109491f (hrtimer: removing all ur
callback modes) in 2.6.29
[ tglx: Feed new state via local variable and add a comment. ]
Signed-off-by: Salman Qazi <sqazi@google.com>
Cc: akpm@linux-foundation.org
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <
20101012142351.8485.21823.stgit@dungbeetle.mtv.corp.google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org
Linus Torvalds [Wed, 13 Oct 2010 23:51:59 +0000 (16:51 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/djbw/async_tx
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
ioat2: fix performance regression
Linus Torvalds [Wed, 13 Oct 2010 23:51:29 +0000 (16:51 -0700)]
Merge branch 'for-2.6.36' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.36' of git://linux-nfs.org/~bfields/linux:
nfsd: fix BUG at fs/nfsd/nfsfh.h:199 on unlink
Linus Torvalds [Wed, 13 Oct 2010 23:50:23 +0000 (16:50 -0700)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
ring-buffer: Fix typo of time extends per page
perf, MIPS: Support cross compiling of tools/perf for MIPS
perf: Fix incorrect copy_from_user() usage
Linus Torvalds [Wed, 13 Oct 2010 23:35:33 +0000 (16:35 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: relax ioremap prohibition (
309caa9) for -final and -stable
ARM: 6440/1: ep93xx: DMA: fix channel_disable
cpuimx27: fix i2c bus selection
cpuimx27: fix compile when ULPI is selected
ARM: 6435/1: Fix HWCAP_TLS flag for ARM11MPCore/Cortex-A9
ARM: 6436/1: AT91: Fix power-saving in idle-mode on 926T processors
ARM: fix section mismatch warnings in Versatile Express
ARM: 6412/1: kprobes-decode: add support for MOVW instruction
ARM: 6419/1: mmu: Fix MT_MEMORY and MT_MEMORY_NONCACHED pte flags
ARM: 6416/1: errata: faulty hazard checking in the Store Buffer may lead to data corruption
Linus Torvalds [Wed, 13 Oct 2010 23:35:05 +0000 (16:35 -0700)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
omap: iommu-load cam register before flushing the entry
Linus Torvalds [Wed, 13 Oct 2010 23:34:46 +0000 (16:34 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms: Silent spurious error message
drm/radeon/kms: fix bad cast/shift in evergreen.c
drm/radeon/kms: make TV/DFP table info less verbose
drm/radeon/kms: leave certain CP int bits enabled
drm/radeon/kms: avoid corner case issue with unmappable vram V2
Linus Torvalds [Wed, 13 Oct 2010 23:34:23 +0000 (16:34 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, numa: For each node, register the memory blocks actually used
x86, AMD, MCE thresholding: Fix the MCi_MISCj iteration order
x86, mce, therm_throt.c: Fix missing curly braces in error handling logic
Dan Williams [Wed, 13 Oct 2010 22:43:10 +0000 (15:43 -0700)]
ioat2: fix performance regression
Commit
0793448 "DMAENGINE: generic channel status v2" changed the interface for
how dma channel progress is retrieved. It inadvertently exported an internal
helper function ioat_tx_status() instead of ioat_dma_tx_status(). The latter
polls the hardware to get the latest completion state, while the helper just
evaluates the current state without touching hardware. The effect is that we
end up waiting for completion timeouts or descriptor allocation errors before
the completion state is updated.
iperf (before fix):
[SUM] 0.0-41.3 sec 364 MBytes 73.9 Mbits/sec
iperf (after fix):
[SUM] 0.0- 4.5 sec 499 MBytes 940 Mbits/sec
This is a regression starting with 2.6.35.
Cc: <stable@kernel.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Reported-by: Richard Scobie <richard@sauce.co.nz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Breno Leitao [Thu, 7 Oct 2010 13:17:33 +0000 (13:17 +0000)]
ehea: Fix a checksum issue on the receive path
Currently we set all skbs with CHECKSUM_UNNECESSARY, even
those whose protocol we don't know. This patch just
add the CHECKSUM_COMPLETE tag for non TCP/UDP packets.
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
J. Bruce Fields [Wed, 13 Oct 2010 18:46:17 +0000 (14:46 -0400)]
nfsd: fix BUG at fs/nfsd/nfsfh.h:199 on unlink
As of commit
43a9aa64a2f4330a9cb59aaf5c5636566bce067c "NFSD:
Fill in WCC data for REMOVE, RMDIR, MKNOD, and MKDIR", we sometimes call
fh_unlock on a filehandle that isn't fully initialized.
We should fix up the callers, but as a quick fix it is also sufficient
just to remove this assertion.
Reported-by: Marius Tolzmann <tolzmann@molgen.mpg.de>
Cc: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Greg Ungerer [Mon, 11 Oct 2010 21:03:05 +0000 (21:03 +0000)]
net: allow FEC driver to use fixed PHY support
At least one board using the FEC driver does not have a conventional
PHY attached to it, it is directly connected to a somewhat simple
ethernet switch (the board is the SnapGear/LITE, and the attached
4-port ethernet switch is a RealTek RTL8305). This switch does not
present the usual register interface of a PHY, it presents nothing.
So a PHY scan will find nothing - it finds ID's of 0 for each PHY
on the attached MII bus.
After the FEC driver was changed to use phylib for supporting PHYs
it no longer works on this particular board/switch setup.
Add code support to use a fixed phy if no PHY is found on the MII bus.
This is based on the way the cpmac.c driver solved this same problem.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
François Jaouen [Wed, 13 Oct 2010 08:47:32 +0000 (10:47 +0200)]
HID: Add Cando touch screen 15.6-inch product id
This add the product id of the touch screen found on ACER Aspire 5738PZ. Works
with hid-cando driver.
Signed-off-by: Francois Jaouen<francois.jaouen@laposte.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Russell King [Tue, 12 Oct 2010 23:15:25 +0000 (00:15 +0100)]
ARM: relax ioremap prohibition (
309caa9) for -final and -stable
... but produce a big warning about the problem as encouragement
for people to fix their drivers.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 12 Oct 2010 21:43:26 +0000 (22:43 +0100)]
Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6
Mika Westerberg [Tue, 12 Oct 2010 09:37:59 +0000 (10:37 +0100)]
ARM: 6440/1: ep93xx: DMA: fix channel_disable
When channel_disable() is called, it disables per channel interrupts and
waits until channels state becomes STATE_STALL, and then disables the
channel. Now, if the DMA transfer is disabled while the channel is in
STATE_NEXT we will not wait anything and disable the channel immediately.
This seems to cause weird data corruption for example in audio transfers.
Fix is to wait while we are in STATE_NEXT or STATE_ON and only then
disable the channel.
Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Thomas Gleixner [Tue, 12 Oct 2010 19:58:27 +0000 (21:58 +0200)]
genirq: Fix CONFIG_GENIRQ_NO_DEPRECATED=y build
This option can be set to verify the full conversion to the new chip
functions. Fix the fallout of the patch rework, so the core code
compiles and works with it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Dan Carpenter [Mon, 11 Oct 2010 19:41:35 +0000 (21:41 +0200)]
ps3disk: passing wrong variable to bvec_kunmap_irq()
This should pass "buf" to bvec_kunmap_irq() instead of "bv". The api is
like kmap_atomic() instead of kmap().
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Linus Torvalds [Tue, 12 Oct 2010 16:16:01 +0000 (09:16 -0700)]
Merge branch 'kvm-updates/2.6.36' of git://git./virt/kvm/kvm
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Move TSC reset out of vmcb_init
KVM: x86: Fix SVM VMCB reset
Steven Rostedt [Tue, 12 Oct 2010 16:06:43 +0000 (12:06 -0400)]
ring-buffer: Fix typo of time extends per page
Time stamps for the ring buffer are created by the difference between
two events. Each page of the ring buffer holds a full 64 bit timestamp.
Each event has a 27 bit delta stamp from the last event. The unit of time
is nanoseconds, so 27 bits can hold ~134 milliseconds. If two events
happen more than 134 milliseconds apart, a time extend is inserted
to add more bits for the delta. The time extend has 59 bits, which
is good for ~18 years.
Currently the time extend is committed separately from the event.
If an event is discarded before it is committed, due to filtering,
the time extend still exists. If all events are being filtered, then
after ~134 milliseconds a new time extend will be added to the buffer.
This can only happen till the end of the page. Since each page holds
a full timestamp, there is no reason to add a time extend to the
beginning of a page. Time extends can only fill a page that has actual
data at the beginning, so there is no fear that time extends will fill
more than a page without any data.
When reading an event, a loop is made to skip over time extends
since they are only used to maintain the time stamp and are never
given to the caller. As a paranoid check to prevent the loop running
forever, with the knowledge that time extends may only fill a page,
a check is made that tests the iteration of the loop, and if the
iteration is more than the number of time extends that can fit in a page
a warning is printed and the ring buffer is disabled (all of ftrace
is also disabled with it).
There is another event type that is called a TIMESTAMP which can
hold 64 bits of data in the theoretical case that two events happen
18 years apart. This code has not been implemented, but the name
of this event exists, as well as the structure for it. The
size of a TIMESTAMP is 16 bytes, where as a time extend is only
8 bytes. The macro used to calculate how many time extends can fit on
a page used the TIMESTAMP size instead of the time extend size
cutting the amount in half.
The following test case can easily trigger the warning since we only
need to have half the page filled with time extends to trigger the
warning:
# cd /sys/kernel/debug/tracing/
# echo function > current_tracer
# echo 'common_pid < 0' > events/ftrace/function/filter
# echo > trace
# echo 1 > trace_marker
# sleep 120
# cat trace
Enabling the function tracer and then setting the filter to only trace
functions where the process id is negative (no events), then clearing
the trace buffer to ensure that we have nothing in the buffer,
then write to trace_marker to add an event to the beginning of a page,
sleep for 2 minutes (only 35 seconds is probably needed, but this
guarantees the bug), and then finally reading the trace which will
trigger the bug.
This patch fixes the typo and prevents the false positive of that warning.
Reported-by: Hans J. Koch <hjk@linutronix.de>
Tested-by: Hans J. Koch <hjk@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Stable Kernel <stable@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Thomas Gleixner [Wed, 6 Oct 2010 14:28:51 +0000 (16:28 +0200)]
x86: Switch sparse_irq allocations to GFP_KERNEL
No callers from atomic context (except boot) anymore.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 5 Oct 2010 13:14:35 +0000 (15:14 +0200)]
genirq: Switch sparse_irq allocator to GFP_KERNEL
The allocator functions are now called outside of preempt disabled
regions. Switch to GFP_KERNEL.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Fri, 8 Oct 2010 10:47:53 +0000 (12:47 +0200)]
genirq: Make sparse_lock a mutex
No callers from atomic regions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Thu, 30 Sep 2010 10:19:03 +0000 (12:19 +0200)]
x86: lguest: Use new irq allocator
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Thomas Gleixner [Wed, 29 Sep 2010 15:18:47 +0000 (17:18 +0200)]
genirq: Remove the now unused sparse irq leftovers
The move_irq_desc() function was only used due to the problem that the
allocator did not free the old descriptors. So the descriptors had to
be moved in create_irq_nr(). That's history.
The code would have never been able to move active interrupt
descriptors on affinity settings. That can be done in a completely
different way w/o all this horror.
Remove all of it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 29 Sep 2010 16:46:55 +0000 (18:46 +0200)]
genirq: Sanitize dynamic irq handling
Use the cleanup functions of the dynamic allocator. No need to have
separate implementations.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 29 Sep 2010 16:44:23 +0000 (18:44 +0200)]
genirq: Remove arch_init_chip_data()
This function should have not been there in the first place.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 29 Sep 2010 15:37:10 +0000 (17:37 +0200)]
x86: xen: Sanitise sparse_irq handling
There seems to be more cleanups possible, but that's left to the xen
experts :)
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Thomas Gleixner [Thu, 30 Sep 2010 09:26:43 +0000 (11:26 +0200)]
x86: Use sane enumeration
Instead of looping through all interrupts, use the bitmap lookup to
find the next.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Thu, 30 Sep 2010 09:43:08 +0000 (11:43 +0200)]
x86: uv: Clean up the direct access to irq_desc
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Oct 2010 19:08:56 +0000 (21:08 +0200)]
x86: Make io_apic.c local functions static
No users outside of io_apic.c
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 11 Oct 2010 10:21:18 +0000 (12:21 +0200)]
genirq: Remove irq_2_iommu
irq_2_iommu is now in the x86 code where it belongs. Remove all
leftovers.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Mon, 11 Oct 2010 09:55:37 +0000 (11:55 +0200)]
x86: Speed up the irq_remapped check in hot pathes
irq_2_iommu is in struct irq_cfg, so we can do the irq_remapped check
based on irq_cfg instead of going through a lookup function. That's
especially interesting in the eoi_ioapic_irq() hotpath.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Sun, 10 Oct 2010 10:34:27 +0000 (12:34 +0200)]
intr_remap: Simplify the code further
Having irq_2_iommu in struct irq_cfg allows further simplifications.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Sun, 10 Oct 2010 10:29:27 +0000 (12:29 +0200)]
intr_remap: Use irq_2_iommu in struct irq_cfg
Switch the intr_remapping code to use the irq_2_iommu struct in
irg_cfg.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Sun, 10 Oct 2010 09:39:09 +0000 (11:39 +0200)]
x86: Embedd irq_2_iommu into irq_cfg
That interrupt remapping code is x86 specific and tied to the io_apic
code. No need for separate allocator functions in the interrupt
remapping code. This allows to simplify the code and irq_2_iommu is
small (13 bytes on 64bit) so it's not a real problem even if interrupt
remapping is runtime disabled. If it's compile time disabled the
impact is zero.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Mon, 4 Oct 2010 16:41:37 +0000 (18:41 +0200)]
pci: intr_remap: Remove unused functions
No users.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Mon, 4 Oct 2010 14:51:27 +0000 (16:51 +0200)]
pci: intr_remap: Use irq_data
No need to dereference irq_desc.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Mon, 4 Oct 2010 14:20:16 +0000 (16:20 +0200)]
pci: intr-remap: Free irte memory if SPARSE_IRQ=y
With SPARSE_IRQ=y the irte descriptors are dynamically allocated, but not
freed in free_irte().
That was ok as long as the sparse irq core was not freeing irq descriptors on
destroy_irq(). Now we leak the irte descriptor. Free it in free_irte().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Fri, 8 Oct 2010 08:40:53 +0000 (10:40 +0200)]
x86: io_apic: Remove the now unused sparse_irq arch_* functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 18:34:53 +0000 (20:34 +0200)]
x86: ioapic: Cleanup sparse irq code
Switch over to the new allocator and remove all the magic which was
caused by the unability to destroy irq descriptors. Get rid of the
create_irq_nr() loop for sparse and non sparse irq.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Yinghai Lu [Sat, 9 Oct 2010 05:44:02 +0000 (22:44 -0700)]
x86: Don't setup ioapic irq for sci twice
The sparseirq rework triggered a warning in the iommu code, which was
caused by setting up ioapic for ACPI irq 9 twice. This function is
solely to handle interrupts which are on a secondary ioapic and
outside the legacy irq range.
Replace the sparse irq_to_desc check with a non ifdeffed version.
[ tglx: Moved it before the ioapic sparse conversion and simplified
the inverse logic ]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <
4CB00122.
3030301@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Fri, 8 Oct 2010 08:44:21 +0000 (10:44 +0200)]
x86: io_apic: Prepare alloc/free_irq_cfg()
Rename the grossly misnamed get_one_free_irq_cfg() to alloc_irq_cfg().
Add a (not yet used) irq number argument to free_irq_cfg()
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 6 Oct 2010 20:14:21 +0000 (22:14 +0200)]
x86: Implement new allocator functions
Implement new allocator functions which make use of the core changes.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Wed, 6 Oct 2010 20:07:03 +0000 (22:07 +0200)]
x86: ioapic: Cleanup get_one_free_irq_cfg()
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 21:31:50 +0000 (23:31 +0200)]
x86: ioapic: Cleanup some more
Cleanup after the irq_chip conversion a bit.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Fri, 8 Oct 2010 20:31:46 +0000 (22:31 +0200)]
x86: Convert ht set_affinity to new chip function
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Fri, 8 Oct 2010 20:21:26 +0000 (22:21 +0200)]
x86: Cleanup hpet affinity setting
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Fri, 8 Oct 2010 20:19:29 +0000 (22:19 +0200)]
x86: Convert dmar affinity setting to new chip function
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: David Woodhouse <dwmw2@infradead.org>
Thomas Gleixner [Fri, 8 Oct 2010 20:15:49 +0000 (22:15 +0200)]
x86: Convert remapped msi to new chip.irq_set_affinity function
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Fri, 8 Oct 2010 19:50:22 +0000 (21:50 +0200)]
x86: Convert remapped ioapic affinity setting to new irq chip function
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Thomas Gleixner [Fri, 8 Oct 2010 19:49:03 +0000 (21:49 +0200)]
x86: Convert msi affinity setting to new chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Fri, 8 Oct 2010 19:40:23 +0000 (21:40 +0200)]
x86: Prepare the affinity common functions for taking struct irq_data *
While at it rename it to sensible function names and fix the return
value from unsigned to int for __ioapic_set_affinity (set_desc_affinity).
Returning -1 in a function returning unsigned int is somewhat strange.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 15:28:38 +0000 (17:28 +0200)]
x86: ioapic: Clean up the direct access to irq_desc
Most of it is useless pseudo optimization.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 15:22:09 +0000 (17:22 +0200)]
ht: Convert to new irq_chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Tue, 28 Sep 2010 15:15:11 +0000 (17:15 +0200)]
dmar: Convert to new irq chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Thomas Gleixner [Tue, 28 Sep 2010 14:18:39 +0000 (16:18 +0200)]
x86: ioapic/hpet: Convert to new chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 14:03:54 +0000 (16:03 +0200)]
x86: ioapic: Convert mask to new irq_chip function
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 14:00:34 +0000 (16:00 +0200)]
x86: io_apic: Convert startup to new irq_chip function
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 13:18:35 +0000 (15:18 +0200)]
x86: Cleanup io_apic
Sanitize functions. Remove irq_desc pointer magic.
Preparatory patch for further cleanups.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Fri, 24 Sep 2010 10:26:18 +0000 (12:26 +0200)]
x86: Cleanup access to irq_data
Fixup the open coded access to
irq_desc->[handler_data|chip_data|msi-desc]
Use the macros and inline functions for it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 13:01:33 +0000 (15:01 +0200)]
x86: i8259: Convert to new irq_chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 12:59:58 +0000 (14:59 +0200)]
x86: Cleanup visws interrupt handling
Remove the open coded access to irq_desc and convert to the new irq
chip functions. Change the mask function of piix4_virtual_irq_type so
we can use the generic irq handling function for the virtual interrupt
instead of open coding it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 12:57:24 +0000 (14:57 +0200)]
x86: lguest: Convert to new irq chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Thomas Gleixner [Tue, 28 Sep 2010 09:11:10 +0000 (11:11 +0200)]
x86: Sanitize apb timer interrupt handling
Disable the interrupt in CPU_DEAD where it belongs. Remove the
open coded irq_desc manipulation.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Thomas Gleixner [Fri, 8 Oct 2010 18:24:58 +0000 (20:24 +0200)]
x86: Convert irq_chip access to new functions
Before moving the irq chips to the new functions, fixup direct callers.
The cpu offline irq fixup code needs to become generic and archs need
to honour the "force" flag as an indicator, but that's for later.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 27 Sep 2010 22:15:31 +0000 (00:15 +0200)]
x86: Remove useless reinitialization of irq descriptors
The descriptors are already initialized in exactly this way.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 28 Sep 2010 17:09:51 +0000 (19:09 +0200)]
pci: Cleanup the irq_desc mess in msi
Handing down irq_desc to msi just so that msi can access
irq_desc.irq_data.msi_desc is a pretty stupid idea. The calling code
can hand down a pointer to msi_desc so msi code does not need to know
about the irq descriptor at all.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Thomas Gleixner [Tue, 28 Sep 2010 14:46:51 +0000 (16:46 +0200)]
pci: Convert msi to new irq_chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Russell King <linux@arm.linux.org.uk>
Thomas Gleixner [Tue, 12 Oct 2010 14:41:22 +0000 (16:41 +0200)]
Merge branch 'x86/urgent' of into irq/sparseirq
Reason: Pull in the latest io_apic bugfixes
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Tue, 12 Oct 2010 14:40:34 +0000 (16:40 +0200)]
Merge branch 'x86/cleanups' into irq/sparseirq
Reason: Avoid conflicts with removal of boot_cpu_id
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Tue, 12 Oct 2010 14:39:44 +0000 (16:39 +0200)]
Merge branch 'x86/x2apic' into irq/sparseirq
Reason: Avoid conflicts with the x2apic modifications
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 27 Sep 2010 18:55:03 +0000 (20:55 +0200)]
genirq: Query arch for number of early descriptors
sparse irq sets up NR_IRQS_LEGACY irq descriptors and archs then go
ahead and allocate more.
Use the unused return value of arch_probe_nr_irqs() to let the
architecture return the number of early allocations. Fix up all users.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 27 Sep 2010 18:02:56 +0000 (20:02 +0200)]
genirq: Use sane sparse allocator
Make irq_to_desc_alloc_node() a wrapper around the new allocator.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>