Many platform support this feature, and it can provide significant
power savings when the reduced refresh rate is low. However, on some
platforms a secondary (reduced) timing is provided but not actually
supported by the hardware. This results in undesirable flicker at
runtime.
So disable the feature by default, but allow users to opt-in to the
reduced clock behavior with a new module parameter, lvds_downclock,
that can be set to 1 to enable the feature.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> (in principle)
Signed-off-by: Eric Anholt <eric@anholt.net>
On Ironlake, there is an interrupt master control bit. With the bit
disabled before clearing IIR, we do not need to handle extra interrupt
in a loop. This patch removes the loop in Ironlake interrupt handler.
It fixed irq lost issue on some Ironlake platforms.
Cc: Stable Team <stable@kernel.org>
Signed-off-by: Zou Nan hai <Nanhai.zou@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Ensure that UV hub revision is set for all ACPI modes.
Signed-off-by: Russ Anderson <rja@sgi.com>
LKML-Reference: <20100115180908.GB7757@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Add function for determining the revision id of the SGI UV
node controller chip (HUB). This function is needed in a
subsequent patch.
Signed-off-by: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20100112210904.GA24546@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Previously this was only built in for Urquell boards, but the same
approach can be used on SDK7786 now that the mode pin reading is
supported, so make it generic to SH7786.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Add a missing iterator variable thus fixing the conditional of the
for-loop in amd64_get_scrub_rate().
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Remove some of the __initdata tags which are currently inappropriate for
platform_device and some of the platform data. These can be returned once
support for copying platform devices and data is added.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This patch fix mini2440 crash on boot due to improper __initdata
qualifier on mini2440_led1_pdata.
Signed-off-by: Uri Yosef <uri.yosef@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This wires up the mode pins support on the SDK7786. The pins are
standard SH7786 pins, and all are fixed in software. Needed for the
clock framework, PCIe, and so forth.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Presently the secondary CPU entry point is only aimed at 29bit phys mode,
causing it to point to a stray virtual address in 32bit mode. Fix it up
after consulting with our shiny new __in_29bit_mode().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
flush_cache_all() gets called in to when we do some early ioremapping.
Unfortunately on SDK7786 the interrupt controller itself requires
ioremapping, leading to a bit of a chicken and egg scenario. For now,
don't bother with IPI crosscalls if there aren't any other CPUs online.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
We should be clear on 2 things:
- the length parameter of a match callback includes
tailing '\0'.
- the string to be searched might not be NULL-terminated.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B4E8770.7000608@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
MATCH_FULL matching for PTR_STRING is not working correctly:
# echo 'func == vt' > events/bkl/lock_kernel/filter
# echo 1 > events/bkl/lock_kernel/enable
...
# cat trace
Xorg-1484 [000] 1973.392586: lock_kernel: ... func=vt_ioctl()
gpm-1402 [001] 1974.027740: lock_kernel: ... func=vt_ioctl()
We should pass to regex.match(..., len) the length (including '\0')
of the source string instead of the length of the pattern string.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B4E8763.5070707@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The @str might not be NULL-terminated if it's of type
DYN_STRING or STATIC_STRING, so we should use strnstr()
instead of strstr().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B4E8753.2000102@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
It differs strstr() in that it limits the length to be searched
in the first string.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B4E8743.6030805@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
For '*foo' pattern, we should allow any string ending with
'foo', but event filtering incorrectly disallows strings
like bar_foo_foo:
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B4E8735.6070604@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
MATCH_FRONT_ONLY actually is a full matching:
# ./perf record -R -f -a -e lock:lock_acquire \
--filter 'name ~rcu_*' sleep 1
# ./perf trace
(no output)
We should pass the length of the pattern string to strncmp().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B4E8721.5090301@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This updates the existing boards that specify the register width through
platform data to use the resource flags instead. This eliminates platform
data completely in most cases, and permits further improvement in the
heartbeat driver as well as shrinking the overall private data size.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This permits the resource access size to be handed off through the
resource flags, which saves platforms from having to establish
platform data only to specify the register width.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Since the fixed voltage regulator grew support for GPIO based
enables and GPIO 0 is valid on some systems we need to specify
that there is no valid GPIO enable control.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The sh-sci driver used the wrong fifosize for PORT_SCIFA and PORT_SCIF
ports. If an incorrect size is used, the serial core will enforce an
early shutdown on the port, especially with baudrates < 9600.
Signed-off-by: Markus Pietrek <Markus.Pietrek@emtrion.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This patch adds support for the lis3lv02d motion sensor connected via
i2c on the Ecovec board. Tested with evtest.
Signed-off-by: NISHIMOTO Hiroki <nishimoto.hiroki@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
The last commit introduced the following breakage
arch/sh/include/asm/mmu.h: In function 'pmb_remap':
arch/sh/include/asm/mmu.h:79: error: expected ';' before '}' token
and...
arch/sh/include/asm/mmu.h:78: error: 'EINVAL' undeclared (first use in this function)
arch/sh/include/asm/mmu.h:78: error: (Each undeclared identifier is reported only once
arch/sh/include/asm/mmu.h:78: error: for each function it appears in.)
arch/sh/include/asm/mmu.h: In function 'pmb_init':
arch/sh/include/asm/mmu.h:87: error: 'ENODEV' undeclared (first use in this function)
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
CC: Richard Henderson <rth@twiddle.net>
CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Matt Turner <mattst88@gmail.com>
CC: linux-alpha@vger.kernel.org
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Anton Blanchard <anton@samba.org>
CC: Richard Henderson <rth@twiddle.net>
CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
CC: linux-alpha@vger.kernel.org
Signed-off-by: Matt Turner <mattst88@gmail.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits)
net: fix build erros with CONFIG_BUG=n, CONFIG_GENERIC_BUG=n
ipv6: skb_dst() can be NULL in ipv6_hop_jumbo().
tg3: Update copyright and driver version
tg3: Disable 5717 serdes and B0 support
tg3: Add reliable serdes detection for 5717 A0
tg3: Fix std rx prod ring handling
tg3: Fix std prod ring nicaddr for 5787 and 57765
sfc: Fix conditions for MDIO self-test
sfc: Fix polling for slow MCDI operations
e1000e: workaround link issues on busy hub in half duplex on 82577/82578
e1000e: MDIO slow mode should always be done for 82577
ixgbe: update copyright dates
ixgbe: Do not attempt to perform interrupts in netpoll when down
cfg80211: fix refcount imbalance when wext is disabled
mac80211: fix queue selection for data frames on monitor interfaces
iwlwifi: silence buffer overflow warning
iwlwifi: disable tx on beacon update notification
iwlwifi: fix iwl_queue_used bug when read_ptr == write_ptr
mac80211: fix endian error
mac80211: add missing sanity checks for action frames
...
Instead of playing sick games with path saving, cleanups, just retry
the entire thing once with LOOKUP_REVAL added. Post-.34 we'll convert
all -ESTALE handling in there to that style, rather than playing with
many retry loops deep in the call chain.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
If ->follow_link handler return the error, it should decrement
nd->path refcnt. But, ecryptfs_follow_link() doesn't decrement.
This patch fix it by using usual nd_set_link() style error handling,
instead of playing with nd->path.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
commit 5300990c03 had stepped on a rather
nasty mess: definitions of ACC_MODE used to be different. Fixed the
resulting breakage, converting them to variant that takes O_... value;
all callers have that and it actually simplifies life (see tomoyo part
of changes).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
For symlinks generic_readlink() will work just fine and for directories
we don't want ->readlink() at all.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
We end up trying to kfree() nd.last.name on open("/mnt/tmp", O_CREAT)
if /mnt/tmp is an autofs direct mount. The reason is that nd.last_type
is bogus here; we want LAST_BIND for everything of that kind and we
get LAST_NORM left over from finding parent directory.
So make sure that it *is* set properly; set to LAST_BIND before
doing ->follow_link() - for normal symlinks it will be changed
by __vfs_follow_link() and everything else needs it set that way.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This stubs in some preliminary board support for the RTE SDK7786.
This is quite stunted at the moment, and primarily builds on top of the
system FPGA. FPGA IRQs are handled via CPU IRL masking for simplicity,
with initial peripheral support restricted to the debug ethernet.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Since the structure field nr_map is optional, we need to check whether the
chip number map is provided to avoid unexpected NULL pointer exception.
Signed-off-by: Ramax Lo <ramaxlo@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Fixed build errors introduced by commit 7ad6848c (ip: fix mc_loop
checks for tunnels with multicast outer addresses)
Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes CERT-FI FICORA #341748
Discovered by Olli Jarva and Tuomo Untinen from the CROSS
project at Codenomicon Ltd.
Just like in CVE-2007-4567, we can't rely upon skb_dst() being
non-NULL at this point. We fixed that in commit
e76b2b2567 ("[IPV6]: Do no rely on
skb->dst before it is assigned.")
However commit 483a47d2fe ("ipv6: added
net argument to IP6_INC_STATS_BH") put a new version of the same bug
into this function.
Complicating analysis further, this bug can only trigger when network
namespaces are enabled in the build. When namespaces are turned off,
the dev_net() does not evaluate it's argument, so the dereference
would not occur.
So, for a long time, namespaces couldn't be turned on unless SYSFS was
disabled. Therefore, this code has largely been disabled except by
people turning it on explicitly for namespace development.
With help from Eugene Teo <eugene@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch updates the copyright notice for 2010 and updates the version
number to 3.106.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The B0 revision of the 5717 will not get enough testing by the time
2.6.33 ships. Since the kernel is already at RC3, serdes support
will require too many patches to fix. For these reasons, this patch
disables 5717 serdes support and will refuse to attach to all 5717
devices that are later than an A0 revision.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The serdes status bit does not work as intended for the 5717 A0.
This patch implements an alternative detection scheme that will only be
valid for A0 revisions.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are some tg3 devices that require the driver to post new rx
buffers in smaller increments. Commit
4361935afe, "tg3: Consider
rx_std_prod_idx a hw mailbox" changed how the driver tracks the rx
producer ring updates, but it does not make any special considerations
for the above-mentioned devices. For those devices, it is possible for
the driver to hit the special case path, which updates the hardware
mailbox register but skips updating the shadow software mailbox member.
If the special case path represents the final mailbox update for this
ISR iteration, the hardware and software mailbox values will be out of
sync. Ultimately, this will cause the driver to use a stale mailbox
value on the next iteration, which will appear to the hardware as a
large rx buffer update. Bad things ensue.
The fix is to update the software shadow mailbox member when the special
case path is taken.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reported-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 87668d352a, titled "tg3: Don't
touch RCB nic addresses", tried to avoid assigning the nic address of
the standard producer ring. Unfortunately, the default nic address is
not correct for the 5787, the 5755M, or the 57765. This patch
reenables the old behavior and opts out of the assignment only
for the 5717.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Tested-by: Chow Loong Jin <hyperair@ubuntu.com>
Tested-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
The MDIO self-test should not be run on boards without an MDIO PHY,
such as SFN5122F-R3 and later revisions. It should also not try to
address a specific MMD in an MDIO clause 22 PHY. Check the
mode_support field to decide which mode to use, if any.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
