Chris Wilson [Wed, 8 Dec 2010 10:38:14 +0000 (10:38 +0000)]
drm/i915: Eliminate drm_gem_object_lookup during relocation
As we provide a list of all objects that will be accessed from the
batchbuffer, we can build a lut of the handles associated with those
objects for this invocation and use that to avoid the overhead of
looking up those objects again for every relocation.
The cost of building and searching a small hash table is much less than
that of acquiring a spinlock, searching a radix tree and manipulating an
atomic refcnt per relocation.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 8 Dec 2010 09:43:41 +0000 (09:43 +0000)]
drm/i915: Re-arm the idle timers if the device is still busy
Don't post a downclocking task if the device is still active when the
idle timer fires. A pathological process could queue up several seconds
worth of processing and then go to sleep, during which time the idle
timer would kick in and downclock the GPU.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 7 Dec 2010 23:04:14 +0000 (23:04 +0000)]
drm/i915: Disable renderctx powersaving support for Ironlake
... still causes a failure during suspend.
Reported-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 7 Dec 2010 23:00:20 +0000 (23:00 +0000)]
Merge branch 'drm-intel-fixes' into drm-intel-next
Conflicts:
drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/intel_dp.c
Chris Wilson [Mon, 6 Dec 2010 11:20:45 +0000 (11:20 +0000)]
drm/i915/dp: Only apply the workaround if the select is still active
As we may try to power down the link at various times, it is not
necessarily still coupled with an encoder and so we must be careful not
to depend upon an operation that is only valid when the link is still
attached to a pipe.
Fixes regression in
5bddd17.
Reported-and-tested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org [after applying 5bddd17]
Chris Wilson [Tue, 7 Dec 2010 10:38:40 +0000 (10:38 +0000)]
drm/i915: Emit a request to clear a flushed and idle ring for unbusy bo
In order for bos to retire eventually, a request must be sent down the
ring. This is expected, for example, by occlusion queries for which mesa
will wait upon (whilst running glean) before issuing more batches and so
the normal activity upon the ring is suspended and we need to emit a
request to clear the idle ring.
Reported-by: Jinjin, Wang <jinjin.wang@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30380
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Mon, 6 Dec 2010 14:36:27 +0000 (14:36 +0000)]
drm/i915: Wait for the bo if a display flip is pipelined on the other ring
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Mon, 6 Dec 2010 14:36:02 +0000 (14:36 +0000)]
drm/i915: Only emit a flush if there is an outstanding gpu write
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 21:04:18 +0000 (21:04 +0000)]
drm/i915: Completely disable fence pipelining.
I'm still seeing tiling corruption of PutImage and CopyArea (I think)
under mutter on pnv, so obviously the pipelining logic is deeply flawed.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 17:27:06 +0000 (17:27 +0000)]
drm/i915: Uncouple render/power ctx before suspending
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 17:11:54 +0000 (17:11 +0000)]
drm/i915: Ignore fenced commands for gpu access on gen4
Userspace should not have been declaring that it needed fenced GPU
access with gen4+ as those GPUs have no fenced commands, but to be on
the safe side it is easier to ignore userspace in case they did.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 16:49:51 +0000 (16:49 +0000)]
drm/i915: caps.has_rc6 is no longer used, remove it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 16:45:02 +0000 (16:45 +0000)]
drm/i915: Power Context register is only available for gen4 mobiles
The ability to save the hardware context upon powering down the render
clock through PWRCTXA is only available on a couple of gen4 chipsets.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 15:08:31 +0000 (15:08 +0000)]
drm/i915: Avoid using PIPE_CONTROL on Ironlake
The workaround is hideous and we are using the STORE_DWORD on all other
generations on all other rings, so use for the gen5 render ring as
well.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 19:21:18 +0000 (19:21 +0000)]
drm/i915/lvds: Always restore panel-fitter when enabling the LVDS
Linus Torvalds pointed out that our code was unbalanced when powering on
the panel with respect to the power off sequence in that we were failing
to restore the panel-fitter. The consequence of this would be that
across a simple DPMS off/on for a non-native mode, without an intervening
modeset, the panel fitter would remain disabled and the output would shift
on the panel.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 20:42:33 +0000 (20:42 +0000)]
drm/i915/ringbuffer: Only print an error on the second attempt to reset head
There's not much we can do here but hope for the best. However the first
failure happens quite frequently and if often remedied by the second
attempt to reset HEAD. So only print the error if that attempt also
fails.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=19802
Reported-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Chris Wilson [Sun, 5 Dec 2010 14:54:05 +0000 (14:54 +0000)]
drm/i915/dp: Trivial code tidy
Locally scope the crtc to where it is used.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 10:43:39 +0000 (10:43 +0000)]
Merge branch 'drm-intel-fixes' into drm-intel-next
Immediate merge for the conflicting introduction of HAS_COHERENT_RINGS.
Conflicts:
drivers/gpu/drm/i915/i915_dma.c
include/drm/i915_drm.h
Daniel Vetter [Sun, 5 Dec 2010 10:30:40 +0000 (11:30 +0100)]
drm/i915: announce to userspace that the bsd ring is coherent
Otherwise we can't really fix the abi-braindeadness of forcing
libva to manually wait for rendering when switching rings. Which
in turn makes implementing hw semaphores a pointless exercise
(at least for ironlake).
[Also added the relaxed fencing param to explain the jump in
numbering - relaxed fencing is in -next.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Takashi Iwai [Sat, 4 Dec 2010 15:13:06 +0000 (16:13 +0100)]
agp/intel: Fix wrong kunmap in i830_cleanup()
Add a missing NULL check and fix the wrong address passed to kunmap()
in i830_cleanup().
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[danvet: added cc stable]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Dec 2010 00:37:43 +0000 (00:37 +0000)]
Merge branch 'drm-intel-fixes' into drm-intel-next
Chris Wilson [Sat, 4 Dec 2010 23:48:40 +0000 (23:48 +0000)]
drm/i915: Enable self-refresh for Ironlake
We disabled this a while ago as it was inexplicably broken. However, it
now appears to work...
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 4 Dec 2010 11:30:53 +0000 (11:30 +0000)]
drm/i915: Implement GPU semaphores for inter-ring synchronisation on SNB
The bulk of the change is to convert the growing list of rings into an
array so that the relationship between the rings and the semaphore sync
registers can be easily computed.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 4 Dec 2010 18:17:15 +0000 (18:17 +0000)]
drm/i915: Be paranoid and bail on resetting if we can't take the lock.
This will declare the machine wedged, but is better than truly wedging
the machine.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 4 Dec 2010 17:49:46 +0000 (17:49 +0000)]
drm/i915: Allow LVDS to be on pipe A for Ironlake+
Previously we enabled this for gen4, only to have to revert it due to it
causing a large number of spurious wakeups. Try again hoping that the
hardware has become more sane in the mean time...
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 4 Dec 2010 17:22:41 +0000 (17:22 +0000)]
drm/i915: Re-enable RC6 for power-savings.
Let's see if we've successfully cleared up all the bugs from last
time...
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Fri, 3 Dec 2010 21:35:48 +0000 (21:35 +0000)]
drm/i915: Enable CB tuning of the Display PLL
Magic numbers from the specs. This is supposed to allow the PLL some
variance to improve jitter performance and VCO headroom across
manufacturing and environmental variations.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Fri, 3 Dec 2010 21:13:16 +0000 (21:13 +0000)]
drm/i915: Explain why we need to write DPLL twice
... it's because setting the Pixel Multiply bits only takes effect once
the PLL is enabled and stable.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Fri, 3 Dec 2010 20:17:19 +0000 (20:17 +0000)]
drm/i915/lvds: Connect the PWM to the LVDS pipe
... and do not just assume to always use pipe B.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 4 Dec 2010 07:45:57 +0000 (07:45 +0000)]
drm/i915: Factor in pixel-repeat in FDI M/N calculation
Fixes the modesetting on the secondary panel of the Libretto W100 and
presumably many more Ironlake laptops with SDVO LVDS displays.
Reported-and-tested-by: Matthew Willoughby <mattfredwill@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Chris Wilson [Sat, 4 Dec 2010 01:01:29 +0000 (01:01 +0000)]
drm/i915: Death to the unnecessary 64bit divide
Use the hardware DDA to calculate the ratio with as much accuracy as is
possible.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Chris Wilson [Fri, 3 Dec 2010 15:37:31 +0000 (15:37 +0000)]
drm/i915: Clean conflicting modesetting registers upon init
If we leave the registers in a conflicting state then when we attempt
to teardown the active mode, we will not disable the pipes and planes
in the correct order -- leaving a plane reading from a disabled pipe and
possibly leading to undefined behaviour.
Reported-and-tested-by: Andy Whitcroft <apw@canonical.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32078
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Chris Wilson [Thu, 2 Dec 2010 23:36:21 +0000 (23:36 +0000)]
Merge branch 'drm-intel-fixes' into drm-intel-next
Conflicts:
drivers/gpu/drm/i915/intel_drv.h
Eric Anholt [Thu, 18 Nov 2010 01:32:59 +0000 (09:32 +0800)]
drm/i915: Apply a workaround for transitioning from DP on pipe B to HDMI.
This workaround only applies to Ironlake.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Eric Anholt [Thu, 18 Nov 2010 01:32:58 +0000 (09:32 +0800)]
drm/i915: Always set the DP transcoder config to 8BPC.
The pipe is always set to 8BPC, but here we were leaving whatever
previous bits were set by the BIOS in place.
Signed-off-by: Eric Anholt <eric@anholt.net>
Tested-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Linus Torvalds [Thu, 2 Dec 2010 20:59:11 +0000 (12:59 -0800)]
Merge branch 'staging-linus' of git://git./linux/kernel/git/gregkh/staging-2.6
* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (27 commits)
Staging: rt2870: Add USB ID for Buffalo Airstation WLI-UC-GN
staging: easycap needs smp_lock.h, fixes build error
Staging: batman-adv: ensure that eth_type_trans gets linear memory
Staging: batman-adv: Don't remove interface with spinlock held
staging: brcm80211: updated maintainers contact information
staging: fix winbond build, needs delay.h
Staging: line6: fix up my fixup for some sysfs attribute permissions
Staging: zram: fix up my fixup for some sysfs attribute permissions
Staging: udlfb: fix up my fixup for some sysfs attribute permissions
Staging: samsung-laptop: fix up my fixup for some sysfs attribute permissions
Staging: iio: adis16220: fix up my fixup for some sysfs attribute permissions
Staging: frontier: fix up my fixup for some sysfs attribute permissions
Staging: asus_oled: fix up my fixup for some sysfs attribute permissions
staging: spectra: fix build error
Staging: intel_sst: fix memory leak
Staging: rtl8712: signedness bug in init
staging: rtl8187se: Change panic to warn when RF switch turned off
staging: comedi: fix memory leak
Staging: quickstart: free after input_unregister_device()
Staging: speakup: free after input_unregister_device()
...
Linus Torvalds [Thu, 2 Dec 2010 20:58:36 +0000 (12:58 -0800)]
Merge branch 'driver-core-linus' of git://git./linux/kernel/git/gregkh/driver-core-2.6
* 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
uio: Change mail address of Hans J. Koch
driver core: prune docs about device_interface
driver core: the development tree has switched to git
Linus Torvalds [Thu, 2 Dec 2010 20:58:16 +0000 (12:58 -0800)]
Merge branch 'tty-linus' of git://git./linux/kernel/git/gregkh/tty-2.6
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
serial: mfd: adjust the baud rate setting
TTY: open/hangup race fixup
TTY: don't allow reopen when ldisc is changing
NET: wan/x25, fix ldisc->open retval
TTY: ldisc, fix open flag handling
serial8250: Mark console as CON_ANYTIME
Linus Torvalds [Thu, 2 Dec 2010 20:57:35 +0000 (12:57 -0800)]
Merge branch 'usb-linus' of git://git./linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: fix autosuspend bug in usb-serial
USB: ehci: disable LPM and PPCD for nVidia MCP89 chips
USB: serial: ftdi_sio: Vardaan USB RS422/485 converter PID added
USB: yurex: add .llseek fop to file_operations
USB: ftdi_sio: Add ID for RT Systems USB-29B radio cable
usb: musb: do not use dma for control transfers
usb: musb: gadget: fix compilation warning
usb: musb: clear RXCSR_AUTOCLEAR before PIO read
usb: musb: unmap dma buffer when switching to PIO
xhci: Don't let the USB core disable SuperSpeed ports.
xhci: Setup array of USB 2.0 and USB 3.0 ports.
xhci: Fix reset-device and configure-endpoint commands
Linus Torvalds [Thu, 2 Dec 2010 20:11:31 +0000 (12:11 -0800)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: it8712f_wdt: add note to Kconfig
watchdog: gef_wdt: include fs.h
watchdog: bcm63xx_wdt: improve platform part.
watchdog: iTCO_wdt: TCO Watchdog patch for Intel Patsburg PCH
Linus Torvalds [Thu, 2 Dec 2010 20:10:56 +0000 (12:10 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB: Fix information leak in marshalling code
IB/pack: Remove some unused code added by the IBoE patches
IB/mlx4: Fix IBoE link state
IB/mlx4: Fix IBoE reported link rate
mlx4_core: Workaround firmware bug in query dev cap
IB/mlx4: Fix memory ordering of VLAN insertion control bits
MAINTAINERS: Update NetEffect entry
Linus Torvalds [Thu, 2 Dec 2010 17:13:36 +0000 (09:13 -0800)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: only run xfs_error_test if error injection is active
xfs: avoid moving stale inodes in the AIL
xfs: delayed alloc blocks beyond EOF are valid after writeback
xfs: push stale, pinned buffers on trylock failures
xfs: fix failed write truncation handling.
Linus Torvalds [Thu, 2 Dec 2010 16:06:16 +0000 (08:06 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
regulator: fix kernel-doc for set_consumer_device_supply
regulator: enable supply regulator only when use count is zero
regulator: twl-regulator - fix twlreg_set_mode
regulator: lock supply in regulator enable
regulator: Return proper error for regulator_register()
regulator: Ensure enough delay time for enabling regulator
regulator: Remove a redundant device_remove_file call in create_regulator
regulator: Staticise mc13783_powermisc_rmw()
regulator: regulator disable supply fix
Linus Torvalds [Thu, 2 Dec 2010 16:05:56 +0000 (08:05 -0800)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
[media] v4l: Remove module_name argument to the v4l2_i2c_new_subdev* functions
[media] v4l: Remove hardcoded module names passed to v4l2_i2c_new_subdev* (2)
Linus Torvalds [Thu, 2 Dec 2010 16:05:22 +0000 (08:05 -0800)]
Merge branch 'rbd-sysfs' of git://git./linux/kernel/git/sage/ceph-client
* 'rbd-sysfs' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: replace the rbd sysfs interface
Linus Torvalds [Thu, 2 Dec 2010 16:04:21 +0000 (08:04 -0800)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: fix parsing of hostname in dfs referrals
cifs: display fsc in /proc/mounts
cifs: enable fscache iff fsc mount option is used explicitly
cifs: allow fsc mount option only if CONFIG_CIFS_FSCACHE is set
cifs: Handle extended attribute name cifs_acl to generate cifs acl blob (try #4)
cifs: Misc. cleanup in cifsacl handling [try #4]
cifs: trivial comment fix for cifs_invalidate_mapping
[CIFS] fs/cifs/Kconfig: CIFS depends on CRYPTO_HMAC
cifs: don't take extra tlink reference in initiate_cifs_search
cifs: Percolate error up to the caller during get/set acls [try #4]
cifs: fix another memleak, in cifs_root_iget
cifs: fix potential use-after-free in cifs_oplock_break_put
Wim Van Sebroeck [Thu, 2 Dec 2010 14:03:29 +0000 (14:03 +0000)]
watchdog: it8712f_wdt: add note to Kconfig
On some motherboards the it8712f watchdog does not work unless
the game port was enabled. see Bug 13140. We therefor add a note
to Kconfig.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Wolfram Sang & Martyn Welch [Wed, 1 Dec 2010 23:11:16 +0000 (00:11 +0100)]
watchdog: gef_wdt: include fs.h
Add missing include "linux/fs.h".
This fixes compile failure.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Wim Van Sebroeck [Sat, 23 Oct 2010 20:59:42 +0000 (20:59 +0000)]
watchdog: bcm63xx_wdt: improve platform part.
* fix devinit and devexit sections
* fix platform removal code so that the iounmap happens after the removal of the timer.
* changes the reboot_notifier by a platform shutdown method.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Seth Heasley [Wed, 17 Nov 2010 19:15:08 +0000 (12:15 -0700)]
watchdog: iTCO_wdt: TCO Watchdog patch for Intel Patsburg PCH
This patch adds an additional LPC Controller DeviceID for the Intel Patsburg PCH for TCO Watchdog.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Chris Wilson [Fri, 12 Nov 2010 15:53:11 +0000 (15:53 +0000)]
drm/i915: Kill the get_fence tracepoint
As the tracepoint is now decoupled from when the actual register is
assigned and was never complemented by detailing when the object lost
its fence, it has outlived its limited usefulness. Profiling the actual
stalls is a far more profitable venture anyway.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Fri, 12 Nov 2010 16:02:21 +0000 (16:02 +0000)]
drm/i915: Remove inactive LRU tracking from set_domain_ioctl
As the userspace mappings are torn down on every GPU write, we prefer to
track when the buffer is activated (via a fresh i915_gem_fault). This
makes the LRU conceptually simpler. With coherent mappings, the
remaining use-case for set_domain_ioctl is GPU synchronisation.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 10 Nov 2010 16:40:20 +0000 (16:40 +0000)]
drm/i915: Pipelined fencing [infrastructure]
With this change, every batchbuffer can use all available fences (save
pinned and scanout, of course) without ever stalling the gpu!
In theory. Currently the actual pipelined update of the register is
disabled due to some stability issues. However, just the deferred update
is a significant win.
Based on a series of patches by Daniel Vetter.
The premise is that before every access to a buffer through the GTT we
have to declare whether we need a register or not. If the access is by
the GPU, a pipelined update to the register is made via the ringbuffer,
and we track the last seqno of the batches that access it. If by the
CPU we wait for the last GPU access and update the register (either
to clear or to set it for the current buffer).
One advantage of being able to pipeline changes is that we can defer the
actual updating of the fence register until we first need to access the
object through the GTT, i.e. we can eliminate the stall on set_tiling.
This is important as the userspace bo cache does not track the tiling
status of active buffers which generate frequent stalls on gen3 when
enabling tiling for an already bound buffer.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Thu, 2 Dec 2010 09:42:56 +0000 (09:42 +0000)]
drm/i915: Prevent stalling for a GTT read back from a read-only GPU target
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Roland Dreier [Thu, 2 Dec 2010 00:33:47 +0000 (16:33 -0800)]
Merge branches 'misc', 'mlx4' and 'nes' into for-next
Vasiliy Kulikov [Sun, 14 Nov 2010 09:22:52 +0000 (09:22 +0000)]
IB: Fix information leak in marshalling code
ib_ucm_init_qp_attr() and ucma_init_qp_attr() pass struct ib_uverbs_qp_attr
with reserved, qp_state, {ah_attr,alt_ah_attr}{reserved,->grh.reserved}
fields uninitialized to copy_to_user(). This leads to leaking of
contents of kernel stack memory to userspace.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Or Gerlitz [Mon, 29 Nov 2010 07:20:50 +0000 (07:20 +0000)]
IB/pack: Remove some unused code added by the IBoE patches
Remove unused functions added by commit
ff7f5aab354d ("IB/pack: IBoE UD
packet packing support").
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Eli Cohen [Thu, 11 Nov 2010 21:05:58 +0000 (21:05 +0000)]
IB/mlx4: Fix IBoE link state
Use netif_running() and netif_carrier_ok() to report link state,
exactly as is done to report Ethernet link state in sysfs.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Eli Cohen [Mon, 15 Nov 2010 14:04:39 +0000 (14:04 +0000)]
IB/mlx4: Fix IBoE reported link rate
The link rate is the product of the link speed in the link width. For
Etherent ports the rate is 10G, so we use 1 for the width and 4 for
speed to get the correct rate.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Eli Cohen [Wed, 10 Nov 2010 12:52:37 +0000 (12:52 +0000)]
mlx4_core: Workaround firmware bug in query dev cap
ConnectX firmware is supposed to report the number blue flame
registers per page as log2 of the value. However, due to a firmware
bug, it reports actual number. This patch works around this by
checking if the number of registers calculated fits within a page. If
it does not, we use 8 registers per page.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Yehuda Sadeh [Fri, 19 Nov 2010 22:51:04 +0000 (14:51 -0800)]
rbd: replace the rbd sysfs interface
The new interface creates directories per mapped image
and under each it creates a subdir per available snapshot.
This allows keeping a cleaner interface within the sysfs
guidelines. The ABI documentation was updated too.
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
Eli Cohen [Wed, 17 Nov 2010 13:39:43 +0000 (13:39 +0000)]
IB/mlx4: Fix memory ordering of VLAN insertion control bits
We must fully update the control segment before marking it as valid,
so that hardware doesn't start executing it before we're ready.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
[ Move VLAN control bit setting to before wmb(). - Roland ]
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Chien Tung [Tue, 2 Nov 2010 16:29:54 +0000 (16:29 +0000)]
MAINTAINERS: Update NetEffect entry
Correct web link as www.neteffect.com is no longer valid. Remove
Chien Tung as maintainer. I am moving on to other responsibilities at
Intel. Thanks for all the fish.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Dave Chinner [Tue, 30 Nov 2010 04:15:31 +0000 (15:15 +1100)]
xfs: only run xfs_error_test if error injection is active
Recent tests writing lots of small files showed the flusher thread
being CPU bound and taking a long time to do allocations on a debug
kernel. perf showed this as the prime reason:
samples pcnt function DSO
_______ _____ ___________________________ _________________
224648.00 36.8% xfs_error_test [kernel.kallsyms]
86045.00 14.1% xfs_btree_check_sblock [kernel.kallsyms]
39778.00 6.5% prandom32 [kernel.kallsyms]
37436.00 6.1% xfs_btree_increment [kernel.kallsyms]
29278.00 4.8% xfs_btree_get_rec [kernel.kallsyms]
27717.00 4.5% random32 [kernel.kallsyms]
Walking btree blocks during allocation checking them requires each
block (a cache hit, so no I/O) call xfs_error_test(), which then
does a random32() call as the first operation. IOWs, ~50% of the
CPU is being consumed just testing whether we need to inject an
error, even though error injection is not active.
Kill this overhead when error injection is not active by adding a
global counter of active error traps and only calling into
xfs_error_test when fault injection is active.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Dave Chinner [Tue, 30 Nov 2010 04:15:46 +0000 (15:15 +1100)]
xfs: avoid moving stale inodes in the AIL
When an inode has been marked stale because the cluster is being
freed, we don't want to (re-)insert this inode into the AIL. There
is a race condition where the cluster buffer may be unpinned before
the inode is inserted into the AIL during transaction committed
processing. If the buffer is unpinned before the inode item has been
committed and inserted, then it is possible for the buffer to be
released and hence processthe stale inode callbacks before the inode
is inserted into the AIL.
In this case, we then insert a clean, stale inode into the AIL which
will never get removed by an IO completion. It will, however, get
reclaimed and that triggers an assert in xfs_inode_free()
complaining about freeing an inode still in the AIL.
This race can be avoided by not moving stale inodes forward in the AIL
during transaction commit completion processing. This closes the
race condition by ensuring we never insert clean stale inodes into
the AIL. It is safe to do this because a dirty stale inode, by
definition, must already be in the AIL.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Dave Chinner [Tue, 30 Nov 2010 04:16:02 +0000 (15:16 +1100)]
xfs: delayed alloc blocks beyond EOF are valid after writeback
There is an assumption in the parts of XFS that flushing a dirty
file will make all the delayed allocation blocks disappear from an
inode. That is, that after calling xfs_flush_pages() then
ip->i_delayed_blks will be zero.
This is an invalid assumption as we may have specualtive
preallocation beyond EOF and they are recorded in
ip->i_delayed_blks. A flush of the dirty pages of an inode will not
change the state of these blocks beyond EOF, so a non-zero
deeelalloc block count after a flush is valid.
The bmap code has an invalid ASSERT() that needs to be removed, and
the swapext code has a bug in that while it swaps the data forks
around, it fails to swap the i_delayed_blks counter associated with
the fork and hence can get the block accounting wrong.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Dave Chinner [Tue, 30 Nov 2010 04:16:16 +0000 (15:16 +1100)]
xfs: push stale, pinned buffers on trylock failures
As reported by Nick Piggin, XFS is suffering from long pauses under
highly concurrent workloads when hosted on ramdisks. The problem is
that an inode buffer is stuck in the pinned state in memory and as a
result either the inode buffer or one of the inodes within the
buffer is stopping the tail of the log from being moved forward.
The system remains in this state until a periodic log force issued
by xfssyncd causes the buffer to be unpinned. The main problem is
that these are stale buffers, and are hence held locked until the
transaction/checkpoint that marked them state has been committed to
disk. When the filesystem gets into this state, only the xfssyncd
can cause the async transactions to be committed to disk and hence
unpin the inode buffer.
This problem was encountered when scaling the busy extent list, but
only the blocking lock interface was fixed to solve the problem.
Extend the same fix to the buffer trylock operations - if we fail to
lock a pinned, stale buffer, then force the log immediately so that
when the next attempt to lock it comes around, it will have been
unpinned.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Dave Chinner [Tue, 30 Nov 2010 04:14:39 +0000 (15:14 +1100)]
xfs: fix failed write truncation handling.
Since the move to the new truncate sequence we call xfs_setattr to
truncate down excessively instanciated blocks. As shown by the testcase
in kernel.org BZ #22452 that doesn't work too well. Due to the confusion
of the internal inode size, and the VFS inode i_size it zeroes data that
it shouldn't.
But full blown truncate seems like overkill here. We only instanciate
delayed allocations in the write path, and given that we never released
the iolock we can't have converted them to real allocations yet either.
The only nasty case is pre-existing preallocation which we need to skip.
We already do this for page discard during writeback, so make the delayed
allocation block punching a generic function and call it from the failed
write path as well as xfs_aops_discard_page. The callers are
responsible for ensuring that partial blocks are not truncated away,
and that they hold the ilock.
Based on a fix originally from Christoph Hellwig. This version used
filesystem blocks as the range unit.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Chris Wilson [Mon, 29 Nov 2010 16:19:24 +0000 (16:19 +0000)]
drm/i915/lvds: Disable panel-fitter on gen4 for 1:1 scale factors
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Linus Torvalds [Wed, 1 Dec 2010 04:13:35 +0000 (20:13 -0800)]
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: add workaround for dce3 ddc line vbios bug
drm/radeon/kms: fix interlaced and doublescan handling
drm/radeon/kms: fix typos in disabled vbios code
Revert "drm/i915/dp: use VBT provided eDP params if available"
drm/i915: Clear pfit registers when not used by any outputs
drm: record monitor status in output_poll_execute
drm: Set connector DPMS status to ON in drm_crtc_helper_set_config
drm/i915: fix regression due to
ba3d8d749b01548b9
Revert "drm/radeon/kms: fix typo in r600 cs checker"
drm/i915/sdvo: Always add a 30ms delay to make SDVO TV detection reliable
MAINTAINERS: INTEL DRM DRIVERS list (intel-gfx) is subscribers-only
drm/i915/sdvo: Always fallback to querying the shared DDC line
drm/i915: Handle pagefaults in execbuffer user relocations
drm/i915/sdvo: Only enable HDMI encodings only if the commandset is supported
drm/radeon/kms: fix resume regression for some r5xx laptops
drm/radeon/kms: fix regression in rs4xx i2c setup
drm/i915: Only save/restore cursor regs if !KMS
drm/i915: Prevent integer overflow when validating the execbuffer
Alex Deucher [Tue, 30 Nov 2010 05:15:10 +0000 (00:15 -0500)]
drm/radeon/kms: add workaround for dce3 ddc line vbios bug
fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=23752
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc:stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Tue, 30 Nov 2010 20:46:47 +0000 (15:46 -0500)]
drm/radeon/kms: fix interlaced and doublescan handling
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Wed, 1 Dec 2010 00:11:45 +0000 (19:11 -0500)]
drm/radeon/kms: fix typos in disabled vbios code
6xx/7xx was hitting the wrong BUS_CNTL reg and bits.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Wed, 1 Dec 2010 02:10:34 +0000 (12:10 +1000)]
Merge remote branch 'intel/drm-intel-fixes' of /ssd/git/drm-next into drm-fixes
* 'intel/drm-intel-fixes' of /ssd/git/drm-next:
Revert "drm/i915/dp: use VBT provided eDP params if available"
drm/i915: Clear pfit registers when not used by any outputs
drm/i915: fix regression due to
ba3d8d749b01548b9
Linus Torvalds [Wed, 1 Dec 2010 01:57:57 +0000 (17:57 -0800)]
Merge branch 'for_linus' of git://github.com/at91linux/linux-2.6-at91
* 'for_linus' of git://github.com/at91linux/linux-2.6-at91:
at91/board-yl-9200: fix typo in video support
atmel_spi: fix warning In function 'atmel_spi_dma_map_xfer'
at91/picotux200: remove commenting usb device and dataflash support
at91: rename rm9200ek and rm9200dk board file name
at91rm9200ek: fix warning: 'ek_mmc_data' defined but not used
at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used
at91: Convert remaining boards to new-style UART initialization
at91: merge all at91rm9200 defconfig in one single file
Oleg Nesterov [Tue, 30 Nov 2010 19:56:02 +0000 (20:56 +0100)]
exec: copy-and-paste the fixes into compat_do_execve() paths
Note: this patch targets 2.6.37 and tries to be as simple as possible.
That is why it adds more copy-and-paste horror into fs/compat.c and
uglifies fs/exec.c, this will be cleanuped later.
compat_copy_strings() plays with bprm->vma/mm directly and thus has
two problems: it lacks the RLIMIT_STACK check and argv/envp memory
is not visible to oom killer.
Export acct_arg_size() and get_arg_page(), change compat_copy_strings()
to use get_arg_page(), change compat_do_execve() to do acct_arg_size(0)
as do_execve() does.
Add the fatal_signal_pending/cond_resched checks into compat_count() and
compat_copy_strings(), this matches the code in fs/exec.c and certainly
makes sense.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Tue, 30 Nov 2010 19:55:34 +0000 (20:55 +0100)]
exec: make argv/envp memory visible to oom-killer
Brad Spengler published a local memory-allocation DoS that
evades the OOM-killer (though not the virtual memory RLIMIT):
http://www.grsecurity.net/~spender/64bit_dos.c
execve()->copy_strings() can allocate a lot of memory, but
this is not visible to oom-killer, nobody can see the nascent
bprm->mm and take it into account.
With this patch get_arg_page() increments current's MM_ANONPAGES
counter every time we allocate the new page for argv/envp. When
do_execve() succeds or fails, we change this counter back.
Technically this is not 100% correct, we can't know if the new
page is swapped out and turn MM_ANONPAGES into MM_SWAPENTS, but
I don't think this really matters and everything becomes correct
once exec changes ->mm or fails.
Reported-by: Brad Spengler <spender@grsecurity.net>
Reviewed-and-discussed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Feng Tang [Fri, 19 Nov 2010 03:01:48 +0000 (11:01 +0800)]
serial: mfd: adjust the baud rate setting
Previous baud rate setting code only has been tested with 3.5M/9600/
115200/230400/460800 bps, and recently we got a 3M bps device to test,
which needs to modify current MUL register setting, and with this
patch 2.5M/2M/1.5M/1M/0.5M should also work as they just use a MUL
value scale down from 3M's.
Also got some reference register setting from silicon guys for
different baud rates, which tries to keep the pre-scalar register value
to 16.
Signed-off-by: Feng Tang <feng.tang@intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 30 Nov 2010 23:52:04 +0000 (15:52 -0800)]
Merge branch 'for-greg' of git://gitorious.org/usb/usb into work
Greg Kroah-Hartman [Tue, 30 Nov 2010 23:38:41 +0000 (15:38 -0800)]
Merge branch 'for-usb-linus' of git://git./linux/kernel/git/sarah/xhci into work
Jeff Layton [Tue, 30 Nov 2010 20:14:48 +0000 (15:14 -0500)]
cifs: fix parsing of hostname in dfs referrals
The DFS referral parsing code does a memchr() call to find the '\\'
delimiter that separates the hostname in the referral UNC from the
sharename. It then uses that value to set the length of the hostname via
pointer subtraction. Instead of subtracting the start of the hostname
however, it subtracts the start of the UNC, which causes the code to
pass in a hostname length that is 2 bytes too long.
Regression introduced in commit
1a4240f4.
Reported-and-Tested-by: Robbert Kouprie <robbert@exx.nl>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: Wang Lei <wang840925@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Steve French <sfrench@us.ibm.com>
Alan Stern [Mon, 29 Nov 2010 15:17:22 +0000 (10:17 -0500)]
USB: fix autosuspend bug in usb-serial
This patch (as1437) fixes a bug in the usb-serial autosuspend
handling. Since the usb-serial core now has autosuspend support, it
must set the .supports_autosuspend member in every serial driver it
registers. Otherwise the usb_autopm_get_interface() call won't work.
This fixes Bugzilla #23012.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: stable@kernel.org
Reported-by: Kevin Smith <thirdwiggin@gmail.com>
Reported-and-tested-by: Simon Gerber <gesimu@gmail.com>
Reported-and-tested-by: Matteo Croce <matteo@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Brian J. Tarricone [Mon, 22 Nov 2010 05:15:52 +0000 (21:15 -0800)]
USB: ehci: disable LPM and PPCD for nVidia MCP89 chips
Tested on MacBookAir3,1. Without this, we get EPROTO errors when
fetching device config descriptors.
Signed-off-by: Brian Tarricone <brian@tarricone.org>
Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
Tested-by: Edgar Hucek <gimli@dark-green.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jacques Viviers [Wed, 24 Nov 2010 09:56:38 +0000 (11:56 +0200)]
USB: serial: ftdi_sio: Vardaan USB RS422/485 converter PID added
Add the PID for the Vardaan Enterprises VEUSB422R3 USB to RS422/485
converter. It uses the same chip as the FTDI_8U232AM_PID 0x6001.
This should also work with the stable branches for:
2.6.31, 2.6.32, 2.6.33, 2.6.34, 2.6.35, 2.6.36
Signed-off-by: Jacques Viviers <jacques.viviers@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tomoki Sekiyama [Mon, 22 Nov 2010 10:29:23 +0000 (19:29 +0900)]
USB: yurex: add .llseek fop to file_operations
Default llseek operation behavior was changed by the patch named
"vfs: make no_llseek the default" after the yurex driver had been merged,
so the llseek to yurex is now ignored.
This patch add llseek fop with default_llseek to yurex driver
to catch up to the change.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michael Stuermer [Wed, 17 Nov 2010 23:45:43 +0000 (00:45 +0100)]
USB: ftdi_sio: Add ID for RT Systems USB-29B radio cable
Another variant of the RT Systems programming cable for ham radios.
Signed-off-by: Michael Stuermer <ms@mallorn.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Trond Myklebust [Tue, 30 Nov 2010 17:42:34 +0000 (12:42 -0500)]
NFS: Fix a readdirplus bug
When comparing filehandles in the helper nfs_same_file(), we should not be
using 'strncmp()': filehandles are not null terminated strings.
Instead, we should just use the existing helper nfs_compare_fh().
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jean-Christophe PLAGNIOL-VILLARD [Sun, 21 Nov 2010 03:24:07 +0000 (11:24 +0800)]
at91/board-yl-9200: fix typo in video support
for the epson frambuffer support it's CONFIG_FB_S1D13XXX
not CONFIG_FB_S1D135XX
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Jean-Christophe PLAGNIOL-VILLARD [Sat, 20 Nov 2010 06:52:53 +0000 (14:52 +0800)]
atmel_spi: fix warning In function 'atmel_spi_dma_map_xfer'
passing argument 2 of 'dma_map_single' discards qualifiers from pointer target type
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Jean-Christophe PLAGNIOL-VILLARD [Sun, 21 Nov 2010 02:31:19 +0000 (10:31 +0800)]
at91/picotux200: remove commenting usb device and dataflash support
as based on http://www.picotux.com/pt200/picotux200.pdf
these board does not have such I/O
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:34:38 +0000 (22:34 +0800)]
at91: rename rm9200ek and rm9200dk board file name
to be a few more concistant with the other boards
as ek is for evaluation kit and dk for development kit
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:31:35 +0000 (22:31 +0800)]
at91rm9200ek: fix warning: 'ek_mmc_data' defined but not used
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:31:03 +0000 (22:31 +0800)]
at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Jean-Christophe PLAGNIOL-VILLARD [Fri, 19 Nov 2010 14:23:28 +0000 (22:23 +0800)]
at91: Convert remaining boards to new-style UART initialization
Convert the following AT91RM9200-based boards to the new-style UART
initialization:
- Ajeco 1ARM Single Board Computer
- Sperry-Sun KAFA board
- picotux 200
Remove the deprecated at91_init_serial
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Randy Dunlap [Thu, 18 Nov 2010 23:02:26 +0000 (15:02 -0800)]
regulator: fix kernel-doc for set_consumer_device_supply
Fix kernel-doc warning for set_consumer_device_supply():
Warning(drivers/regulator/core.c:912): missing initial short description on line:
* set_consumer_device_supply: Bind a regulator to a symbolic supply
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Bengt Jonsson [Wed, 10 Nov 2010 10:06:22 +0000 (11:06 +0100)]
regulator: enable supply regulator only when use count is zero
Supply regulators are disabled only when the last
reference count is removed on the child regulator
(the use count goes from 1 to 0). This patch changes
the behaviour of enable so the supply regulator is
enabled only when the use count of the child
regulator goes from 0 to 1.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Axel Lin [Fri, 22 Oct 2010 08:38:22 +0000 (16:38 +0800)]
regulator: twl-regulator - fix twlreg_set_mode
The Singular Message is 16 bits:
DEV_GRP[15:13] MT[12] RES_ID[11:4] RES_STATE[3:0]
Current implementation return immedially after sucessfuly write MSB part.
To properly set mode, we need to write the complete message ( MSB and LSB ).
In twl.h, now we have defines for PM Master module register offsets,
use it instead of hard coded 0x15/0x16.
Use "message & 0xff" to ensure we send correct value for LSB.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Lesly Arackal Manuel <leslyam@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mattias Wallin [Thu, 4 Nov 2010 10:01:31 +0000 (11:01 +0100)]
regulator: lock supply in regulator enable
This patch add locks around regulator supply enable.
Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Axel Lin [Fri, 5 Nov 2010 07:27:17 +0000 (15:27 +0800)]
regulator: Return proper error for regulator_register()
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Axel Lin [Fri, 5 Nov 2010 13:51:32 +0000 (21:51 +0800)]
regulator: Ensure enough delay time for enabling regulator
Integer division will truncate the result, this patch ensures we have
enough delay time for enabling regulator.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / log