Since we began using the late clock disable functionality, ensure that
we don't disable the clock if any of the ADC or DAC paths are still
enabled. This happens when we have simultaneous playback and recording.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
On a Thinkpad x61s, I noticed some memory corruption when
plugging/unplugging the external VGA connection. The symptoms are that
4 bytes at the beginning of a page get overwritten by zeroes.
The address of the corruption varies when rebooting the machine, but
stays constant while it's running (so it's possible to repeatedly write
some data and then corrupt it again by plugging the cable).
Further investigation revealed that the corrupted address is
(dev_priv->status_page_dmah->busaddr & 0xffffffff), ie. the beginning of
the hardware status page of the i965 graphics card, cut to 32 bits.
So it seems that for some memory access, the hardware uses only 32 bit
addressing. If the hardware status page is located >4GB, this
corrupts unrelated memory.
Signed-off-by: Jan Niehusmann <jan@gondor.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
The git commit:
> commit a8b7458363
> Author: Ian Campbell <ian.campbell@citrix.com>
> Date: Thu Feb 17 11:04:20 2011 +0000
>
> xen: switch to new schedop hypercall by default.
>
> Rename old interface to sched_op_compat and rename sched_op_new to
> simply sched_op.
>
breaks the IA64 build. This patch fixes it.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ian Campbell <Ian.Campbell@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
It went AWOL in the multi-component conversion.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: stable@kernel.org
These were missed the last time I cleaned this up
globally, because of code moving around or new code
getting merged.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
According to Russell King, adfs was written to not require the big
kernel lock, and all inode updates are done under adfs_dir_lock.
All other metadata in adfs is read-only and does not require locking.
The use of the BKL is the result of various pushdowns from the VFS
operations.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Stuart Swales <stuart.swales.croftnuisk@gmail.com>
Fix dst_lock usage in __ip_vs_update_dest. We need
_bh locking because destination is updated in user context.
Can cause lockups on frequent destination updates.
Problem reported by Simon Kirby. Bug was introduced
in 2.6.37 from the "ipvs: changes for local real server"
change.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Return a dst pointer which is potentitally error encoded.
Don't pass original dst pointer by reference, pass a struct net
instead of a socket, and elide the flow argument since it is
unnecessary.
Signed-off-by: David S. Miller <davem@davemloft.net>
removed the following defines as a side effect:
- FC_SUBTYPE_ANY_QOS
- FC_KIND_MASK
- FC_PROBE_REQ
- FC_PROBE_RESP
- FC_BEACON
- FC_PS_POLL
- FC_RTS
- FC_CTS
also fixed possible bug when the CPU byte ordered fc was passed into
ieee80211_is_data and ieee80211_is_mgmt
Signed-off-by: Stanislav Fomichev <kernel@fomichev.me>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This reverts commit c4ff4b829e.
Ted Ts'o reports:
"TPM is working for me so I can log into employer's network in 2.6.37.
It broke when I tried 2.6.38-rc6, with the following relevant lines
from my dmesg:
[ 11.081627] tpm_tis 00:0b: 1.2 TPM (device-id 0x0, rev-id 78)
[ 25.734114] tpm_tis 00:0b: Operation Timed out
[ 78.040949] tpm_tis 00:0b: Operation Timed out
This caused me to get suspicious, especially since the _other_ TPM
commit in 2.6.38 had already been reverted, so I tried reverting
commit c4ff4b829e: "TPM: Long default timeout fix". With this commit
reverted, my TPM on my Lenovo T410 is once again working."
Requested-and-tested-by: Theodore Ts'o <tytso@mit.edu>
Acked-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It now takes an additional argument so it can be used to
flush-and-invalidate pages that are cached using hash-for-home
as well those that are cached with coherence point on a single cpu.
This allows it to be used more widely for changing the coherence
point of arbitrary pages when necessary.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
The first is that we were using an incorrect hand-rolled variant
of __kernel_text_address() which didn't handle module PCs. We now
just use the standard API.
The second was that we weren't accounting for the three-level
page table when we were trying to pre-verify the addresses on
the 64-bit TILE-Gx processor; we now do that correctly.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This avoids having to maintain an additional separate assembly
file, and of course the inline is slightly more efficient as well.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Previously we used iret to atomically return to kernel PL with
interrupts enabled. However, it turns out that we are architecturally
guaranteed that we can just set and clear the "interrupt critical
section" and only interrupt on the following instruction, so we
now do that instead, since it's cleaner.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
These headers are used by Linux but are maintained upstream.
This change incorporates a few minor fixes to these headers,
including a new sim_print() function, cleaner support for the
sim_syscall() API, and a sim_query_cpu_speed() method.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
As the added comment says, we can sometimes see a coherence warning
from our simulator if the "swapper_pgprot" variable on the boot cpu
has not been evicted from cache by the time the other cpus come up.
Force it to be evicted so we never see the warning.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This should have been as part of the initial hardwall submission to
LKML but was overlooked. The header provides the ioctl definitions for
manipulating the hardwall fd, so needs to be available to userspace.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Previously we assumed this was impossible, but in fact it can happen.
Handle it gracefully by retrying after issuing a warning.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
The problem was that this could lead to IPIs being disabled during
the softirq processing after a hypervisor downcall (e.g. for I/O),
since both IPI and device interrupts use the INCTRL_1 downcall mechanism.
When this happened at the wrong time, it could lead to deadlock.
Luckily, we were already maintaining the per-interrupt state we need,
and using it in the proper way in the hypervisor, so all we had to do
was to change Linux to stop blocking downcall interrupts for the entire
length of the downcall. (Now they're blocked while we're executing the
downcall routine itself, but not while we're executing any subsequent
softirq routines.) The hypervisor is doing a very small amount of
work it no longer needs to do (masking INTCTRL_1 on entry to the client
interrupt routine), but doing so means that older versions of Tile Linux
will continue to work with a current hypervisor, so that seems reasonable.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
The current implementations of __ndelay and __udelay call a hypervisor
service to delay, but the hypervisor service isn't actually implemented
very well, and the consensus is that Linux should handle figuring this
out natively and not use a hypervisor service.
By converting nanoseconds to cycles, and then spinning until the
cycle counter reaches the desired cycle, we get several benefits:
first, we are sensitive to the actual clock speed; second, we use
less power by issuing a slow SPR read once every six cycles while
we delay; and third, we properly handle the case of an interrupt by
exiting at the target time rather than after some number of cycles.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
To handle single-step, tile mmap's a page of memory in the process
space for each thread and uses it to construct a version of the
instruction that we want to single step. If the process exec's,
though, we lose that mapping, and the kernel needs to be aware that
it will need to recreate it if the exec'ed process than tries to
single-step as well.
Also correct some int32_t to s32 for better kernel style.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Route lookups follow a general pattern in the ipv6 code wherein
we first find the non-IPSEC route, potentially override the
flow destination address due to ipv6 options settings, and then
finally make an IPSEC search using either xfrm_lookup() or
__xfrm_lookup().
__xfrm_lookup() is used when we want to generate a blackhole route
if the key manager needs to resolve the IPSEC rules (in this case
-EREMOTE is returned and the original 'dst' is left unchanged).
Otherwise plain xfrm_lookup() is used and when asynchronous IPSEC
resolution is necessary, we simply fail the lookup completely.
All of these cases are encapsulated into two routines,
ip6_dst_lookup_flow and ip6_sk_dst_lookup_flow. The latter of which
handles unconnected UDP datagram sockets.
Signed-off-by: David S. Miller <davem@davemloft.net>
The convention changed to, e.g., ".data..page_aligned". This commit
fixes the places in the tile architecture that were still using the
old convention. One tile-specific section (.init.page) was dropped
in favor of just using an "aligned" attribute.
Sam Ravnborg <sam@ravnborg.org> pointed out __PAGE_ALIGNED_BSS, etc.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
wlc_antsel_attach was called with four parameters but actually
three parameters were already provided in the first parameter.
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Most of the util source files do not need the osl_info anymore due
to previous patches so usage of it has been removed.
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Register access to the device uses a flag in struct osl_info to determine
whether to use memory mapped access or not. This check was not needed as
it boils down to memory mapped for brcmsmac driver and not for brcmfmac
driver. Only use of struct osl_info is reduced to keeping track of the
number of allocated sk_buffs within the driver(s).
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Modifying the device & driver name from "mmci-omap-hs" to
"omap_hsmmc".
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Acked-by: Benoit Cousson<b-cousson@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
OMAP2420 platform consists of mmc block as in omap1 and not the
hsmmc block as present in omap2430, omap3, omap4 platforms.
Removing all base address macro defines except keeping one for OMAP2420 and
adapting only hsmmc device registration and driver to hwmod framework.
Changes involves:
1) Remove controller reset in devices.c which is taken care of
by hwmod framework.
2) Using omap-device layer to register device and utilizing data from
hwmod data file for base address, dma channel number, Irq_number,
device attribute.
3) Update the driver to use dev_attr to find whether controller
supports dual volt cards
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Reviewed-by: Balaji T K <balajitk@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
CC: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Moving the definition of mux setting API from devices.c to hsmmc.c
and renaming it from "omap2_mmc_mux" to "omap_hsmmc_mux".
Also calling "omap_hsmmc_mux" from omap2_hsmmc_init.
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Cc: Chris Ball <cjb@laptop.org
Cc: Tony Lindgren <tony@atomide.com
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add a device attribute to hwmod data of omap2430, omap3, omap4.
Currently the device attribute holds information regarding dual volt MMC card
support by the controller which will be later passed to the host driver via
platform data.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Acked-by: Benoit Cousson<b-cousson@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Update the omap3 hwmod data with the HSMMC info.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Update the omap2430 hwmod data with the HSMMC info.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The MMC controller on the OMAP2420 is different from those
on the OMAP2430, OMAP3 and OMAP4 families - all of the latter
are identical. The one on the OMAP2420 is closer to that
on OMAP1 chips.
Currently, the n8x0 is the only OMAP2420 platform supported
in mainline which registers the MMC controller. Upcoming
changes to register the controllers using hwmod data are
potentially invasive. To reduce the risk, separate out the
2420 controller registration from the common init function
and update its only user. Also seperating out mux settings
for OMAP2420.
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Chris Ball <cjb@laptop.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The ioctl file pointer was removed in commit 6caa76
"tty: now phase out the ioctl file pointer for good".
Thus fix the prototype for mgslpc_ioctl() and eliminate below warning:
CC [M] drivers/char/pcmcia/synclink_cs.o
drivers/char/pcmcia/synclink_cs.c:2787: warning: initialization from incompatible pointer type
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The SH EHCI/OHCI driver hardcoded the CPU type in {ehci,ohci}-hcd.c.
So if we will add the new CPU, we had to add to the hcd driver each time.
The patch adds the CONFIG_USB_{EHCI,OHCI}_SH configuration. So if we
want to use the SH EHCI/OHCI, we only enable the configuration.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch moves the AMD PLL quirk code in OHCI/EHCI driver to pci-quirks.c,
and exports the functions to be used by xHCI driver later.
AMD PLL quirk disable the optional PM feature inside specific
SB700/SB800/Hudson-2/3 platforms under the following conditions:
1. If an isochronous device is connected to OHCI/EHCI/xHCI port and is active;
2. Optional PM feature that powers down the internal Bus PLL when the link is
in low power state is enabled.
Without AMD PLL quirk, USB isochronous stream may stutter or have breaks
occasionally, which greatly impair the performance of audio/video streams.
Currently AMD PLL quirk is implemented in OHCI and EHCI driver, and will be
added to xHCI driver too. They are doing similar things actually, so move
the quirk code to pci-quirks.c, which has several advantages:
1. Remove duplicate defines and functions in OHCI/EHCI (and xHCI) driver and
make them cleaner;
2. AMD chipset information will be probed only once and then stored.
Currently they're probed during every OHCI/EHCI initialization, move
the detect code to pci-quirks.c saves the repeat detect cost;
3. Build up synchronization among OHCI/EHCI/xHCI driver. In current
code, every host controller enable/disable PLL only according to
its own status, and may enable PLL while there is still isoc transfer on
other HCs. Move the quirk to pci-quirks.c prevents this issue.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alex He <alex.he@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
