Jesse Barnes [Wed, 5 Jan 2011 20:01:26 +0000 (12:01 -0800)]
drm/i915: cleanup rc6 code
Cleanup several aspects of the rc6 code:
- misnamed intel_disable_clock_gating function (was only about rc6)
- remove commented call to intel_disable_clock_gating
- rc6 enabling code belongs in its own function (allows us to move the
actual clock gating enable call back into restore_state)
- allocate power & render contexts up front, only free on unload
(avoids ugly lazy init at rc6 enable time)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[ickle: checkpatch cleanup]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Jesse Barnes [Wed, 5 Jan 2011 20:01:25 +0000 (12:01 -0800)]
drm/i915: fix rc6 enabling around suspend/resume
Enabling RC6 implies setting a graphics context. Make sure we do that
only after the ring has been enabled, otherwise our ring commands will
hang.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Jesse Barnes [Wed, 5 Jan 2011 20:01:24 +0000 (12:01 -0800)]
drm/i915: re-enable rc6 support for Ironlake+
Re-enable rc6 support on Ironlake for power savings. Adds a debugfs
file to check current RC state, adds a missing workaround for Ironlake
MI_SET_CONTEXT instructions, and renames MCHBAR_RENDER_STANDBY to
RSTDBYCTL to match the docs.
Keep RC6 and the power context disabled on pre-ILK. It only seems to
hang and doesn't save any power.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 5 Jan 2011 10:32:24 +0000 (10:32 +0000)]
drm/i915: Make the ring IMR handling private
As the IMR for the USER interrupts are not modified elsewhere, we can
separate the spinlock used for these from that of hpd and pipestats.
Those two IMR are manipulated under an IRQ and so need heavier locking.
Reported-and-tested-by: Alexey Fisher <bug-track@fisher-privat.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 4 Jan 2011 22:22:56 +0000 (22:22 +0000)]
drm/i915/ringbuffer: Simplify the ring irq refcounting
... and move it under the spinlock to gain the appropriate memory
barriers.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32752
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 4 Jan 2011 22:22:17 +0000 (22:22 +0000)]
drm/i915/debugfs: Show the per-ring IMR
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 4 Jan 2011 17:35:21 +0000 (17:35 +0000)]
drm/i915: Mask USER interrupts on gen6 (until required)
Otherwise we may consume 20% of the CPU just handling IRQs whilst
rendering. Ouch.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 4 Jan 2011 17:34:02 +0000 (17:34 +0000)]
drm/i915: Handle ringbuffer stalls when flushing
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 4 Jan 2011 18:42:07 +0000 (18:42 +0000)]
drm/i915: Enforce write ordering through the GTT
We need to ensure that writes through the GTT land before any
modification to the MMIO registers and so must impose a mandatory write
barrier when flushing the GTT domain. This was revealed by relaxing the
write ordering by experimentally mapping the registers and the GATT as
write-combining.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Mon, 3 Jan 2011 16:39:21 +0000 (16:39 +0000)]
drm/i915: Remove impossible test
As has_gem is unconditionally set to true, the conditional immediately
following that assignment is superfluous.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Jesse Barnes [Thu, 30 Dec 2010 17:36:39 +0000 (09:36 -0800)]
drm/i915: avoid reading non-existent PLL reg on Ironlake+
These functions need to be reworked for Ironlake and above, but until
then at least avoid reading non-existent registers.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[ickle: combine with a gratuitous tidy]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Thu, 23 Dec 2010 13:33:15 +0000 (13:33 +0000)]
drm/i915: add 'reset' parameter
When bringing up new hardware, or otherwise experimenting, GPU hangs are
a way of life. However, the automatic GPU reset can do more harm than
good under these circumstances, as we may wish to capture a full trace for
debugging.
Based on a patch by Zhenyu Wang.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Yuanhan Liu [Thu, 23 Dec 2010 08:35:40 +0000 (16:35 +0800)]
drm/i915: fix the wrong latency value while computing wm0
On Ironlake, the LP0 latency is hardcoded and in ns unit, while on
Sandybridge, it comes from a register and with unit 0.1 us. So, fix
the wrong latency value while computing wm0 on Ironlake and Sandybridge.
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Jesse Barnes [Tue, 21 Dec 2010 21:10:23 +0000 (13:10 -0800)]
drm/i915: support low power watermarks on Ironlake
This patch actually makes the watermark code even uglier (if that's
possible), but has the advantage of sharing code between SNB and ILK at
least. Longer term we should refactor the watermark stuff into its own
file and clean it up now that we know how it's supposed to work.
Supporting WM2 on my Vaio reduced power consumption by around 0.5W, so
this patch is definitely worthwhile (though it also needs lots of test
coverage).
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[ickle: pass the watermark structs arounds]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Thu, 23 Dec 2010 10:40:38 +0000 (10:40 +0000)]
agp/intel: Flush the chipset write buffers when changing GTT base
Flush the chipset write buffers before and after adjusting the GTT base
register, just in case. We only modify this value upon initialisation
(boot and resume) so there should be no outstanding writes, however
there are always those persistent PGTBL_ER that keep getting reported
upon resume.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 22 Dec 2010 14:04:47 +0000 (14:04 +0000)]
drm/i915: Workaround erratum on i830 for TAIL pointer within last 2 cachelines
On i830 if the tail pointer is set to within 2 cachelines of the end of
the buffer, the chip may hang. So instead if the tail were to land in
that location, we pad the end of the buffer with NOPs, and start again
at the beginning.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 22 Dec 2010 14:07:12 +0000 (14:07 +0000)]
drm/i915: Use the mappable sizes determined by GTT for consistency.
There should be no difference, but we can eliminate redundant code.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Jesse Barnes [Mon, 20 Dec 2010 19:34:20 +0000 (11:34 -0800)]
drm/i915: support overclocking on Sandy Bridge
In some configuration, the PCU may allow us to overclock the GPU.
Check for this case and adjust the max frequency as appropriate. Also
initialize the min/max frequencies to default values as indicated by
hardware.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 11 Jan 2011 18:09:58 +0000 (18:09 +0000)]
drm/i915/lvds: Always use 0 to disable the pfit controller
... and just any combination of bits & ~PFIT_ENABLE. This way we do not
attempt disable to the panel fitter controller uselessly upon
intel_lvds_disable().
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 11 Jan 2011 17:06:04 +0000 (17:06 +0000)]
drm/i915/panel: Only record the backlight level when it is enabled
By tracking the current status of the backlight we can prevent recording
the value of the current backlight when we have disabled it. And so
prevent restoring it to 'off' after an unbalanced sequence of
intel_lvds_disable/enable.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=22672
Tested-by: Alex Riesen <raa.lkml@gmail.com>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Chris Wilson [Tue, 4 Jan 2011 20:10:52 +0000 (20:10 +0000)]
drm/i915/sdvo: Defer detection of output capabilities until probing
Alex Fiestas reported an issue with his HDMI connector being misdetected
as DVI unless he had something connected upon boot. By moving the
decision as to whether to use HDMI or DVI encoding for the HDMI capable
output until we probe the monitor means that we should avoid sending a
HDMI signal to a DVI monitor and also correctly detect hardware like
Alex's.
However, to really determine what connector is soldered onto the wire we
need to inspect the VBT sdvo child devices - but can we trust it?
Reported-by: Alex Fiestas <alex@eyeos.org>
Tested-by: Alex Fiestas <alex@eyeos.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32828
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Yuanhan Liu [Thu, 6 Jan 2011 10:26:08 +0000 (18:26 +0800)]
drm/i915: fix calculation of eDP signal levels on Sandybridge
Some voltage swing/pre-emphasis level use the same value on eDP
Sandybridge, like 400mv_0db and 600mv_0db are with the same value
of (0x0 << 22). So, fix them, and point out the value if it isn't
a supported voltage swing/pre-emphasis level.
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
David Müller [Thu, 6 Jan 2011 12:29:32 +0000 (12:29 +0000)]
drm/i915/crt: Check for a analog monitor in case of DVI-I
Since Linux 2.6.36 the digital output on my system (855GME + DVI-I) is
not working any longer. The analog output is always activated
regardless of the type of monitor attached.
The culprit seems to be intel_crt_detect_ddc(), which returns true as
soon as an ACK from the EDID device is received. Obviously this
approach does not work with DVI-I where the analog and digital outputs
share a common DDC bus.
In a similar manner to the shared DDC wire, ala the "Mac Mini Hack", we
need an additional check to make sure that there really is an analog
device attached to the DDC.
Signed-off-by: David Müller <d.mueller@elsoft.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Jesse Barnes [Wed, 5 Jan 2011 22:45:24 +0000 (14:45 -0800)]
drm/i915: make DP training try a little harder
When trying to do channel equalization, we need to make sure we still
have clock recovery on all lanes while training. We also need to try
clock recovery again if we lose the clock or if channel eq fails 5
times. We'll try clock recovery up to 5 more times before giving up
entirely.
Gets suspend/resume working on my Vaio again and brings us back into
compliance with the DP training sequence spec.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Jesse Barnes [Tue, 4 Jan 2011 18:46:49 +0000 (10:46 -0800)]
drm/i915: check eDP encoder correctly when setting modes
We were using a stale pointer in the check which caused us to use CPU
attached DP params when we should have been using PCH attached params.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31988
Tested-by: Jan-Hendrik Zab <jan@jhz.name>
Tested-by: Christoph Lukas <christoph.lukas@gmx.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Linus Torvalds [Tue, 11 Jan 2011 01:11:39 +0000 (17:11 -0800)]
Merge branch 'drm-core-next' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (390 commits)
drm/radeon/kms: disable underscan by default
drm/radeon/kms: only enable hdmi features if the monitor supports audio
drm: Restore the old_fb upon modeset failure
drm/nouveau: fix hwmon device binding
radeon: consolidate asic-specific function decls for pre-r600
vga_switcheroo: comparing too few characters in strncmp()
drm/radeon/kms: add NI pci ids
drm/radeon/kms: don't enable pcie gen2 on NI yet
drm/radeon/kms: add radeon_asic struct for NI asics
drm/radeon/kms/ni: load default sclk/mclk/vddc at pm init
drm/radeon/kms: add ucode loader for NI
drm/radeon/kms: add support for DCE5 display LUTs
drm/radeon/kms: add ni_reg.h
drm/radeon/kms: add bo blit support for NI
drm/radeon/kms: always use writeback/events for fences on NI
drm/radeon/kms: adjust default clock/vddc tracking for pm on DCE5
drm/radeon/kms: add backend map workaround for barts
drm/radeon/kms: fill gpu init for NI asics
drm/radeon/kms: add disabled vbios accessor for NI asics
drm/radeon/kms: handle NI thermal controller
...
Linus Torvalds [Tue, 11 Jan 2011 01:09:13 +0000 (17:09 -0800)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c: Constify i2c_client where possible
i2c-algo-bit: Complain about masters which can't read SCL
i2c-algo-bit: Refactor adapter registration
i2c: Add generic I2C multiplexer using GPIO API
i2c-nforce2: Remove unnecessary cast of pci_get_drvdata
i2c-i801: Include <linux/slab.h>
Linus Torvalds [Tue, 11 Jan 2011 01:06:08 +0000 (17:06 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (52 commits)
Blackfin: encode cpu-rev into uImage name
Blackfin: bf54x: don't ack GPIO ints when unmasking them
Blackfin: sram_free_with_lsl: do not ignore return value of sram_free
Blackfin: boards: add missing "static" to peripheral lists
Blackfin: DNP5370: new board port
Blackfin: bf518f-ezbrd: fix dsa resources
Blackfin: move "-m elf32bfin" to general LDFLAGS
Blackfin: kgdb_test: make sure to initialize num2
Blackfin: kgdb: disable preempt schedule when running single step in kgdb
Blackfin: kgdb: disable interrupt when single stepping in ADEOS
Blackfin: SMP: kgdb: apply anomaly 257 work around
Blackfin: fix building IPIPE code when XIP is enabled
Blackfin: SMP: kgdb: flush core internal write buffer before flushinv
Blackfin: sport_uart resources: remove unused secondary RX/TX pins
Blackfin: tll6527m: fix spelling in unused code (struct name)
Blackfin: bf527-ezkit: add adau1373 chip address
Blackfin: no-mpu: fix masking of small uncached dma region
Blackfin: pm: drop irq save/restore in standby and suspend to mem callback
MAINTAINERS: update Analog Devices support info
Blackfin: dpmc.h: pull in new pll.h
...
Linus Torvalds [Tue, 11 Jan 2011 00:10:33 +0000 (16:10 -0800)]
Merge branch 'driver-core-next' of git://git./linux/kernel/git/gregkh/driver-core-2.6
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
driver core: Document that device_rename() is only for networking
sysfs: remove useless test from sysfs_merge_group
driver-core: merge private parts of class and bus
driver core: fix whitespace in class_attr_string
Linus Torvalds [Tue, 11 Jan 2011 00:04:53 +0000 (16:04 -0800)]
Merge branch 'staging-next' of git://git./linux/kernel/git/gregkh/staging-2.6
* 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (510 commits)
staging: speakup: fix failure handling
staging: usbip: remove double giveback of URB
Staging: batman-adv: Remove batman-adv from staging
Staging: hv: Use only one txf buffer per channel and kmalloc/GFP_KERNEL on initialize
staging: hv: remove unneeded osd_schedule_callback
staging: hv: convert channel_mgmt.c to not call osd_schedule_callback
staging: hv: convert vmbus_on_msg_dpc to not call osd_schedule_callback
staging: brcm80211: Fix WL_<type> logging macros
Staging: IIO: DDS: AD9833 / AD9834 driver
Staging: IIO: dds.h convenience macros
Staging: IIO: Direct digital synthesis abi documentation
staging: brcm80211: Convert ETHER_TYPE_802_1X to ETH_P_PAE
staging: brcm80211: Remove unused ETHER_TYPE_<foo> #defines
staging: brcm80211: Remove ETHER_HDR_LEN, use ETH_HLEN
staging: brcm80211: Convert ETHER_ADDR_LEN to ETH_ALEN
staging: brcm80211: Convert ETHER_IS<FOO> to is_<foo>_ether_addr
staging: brcm80211: Remove unused ether_<foo> #defines and struct
staging: brcm80211: Convert ETHER_IS_MULTI to is_multicast_ether_addr
staging: brcm80211: Remove unused #defines ETHER_<foo>_LOCALADDR
Staging: comedi: Fix checkpatch.pl issues in file s526.c
...
Fix up trivial conflict in drivers/video/udlfb.c
Linus Torvalds [Mon, 10 Jan 2011 23:39:48 +0000 (15:39 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (36 commits)
sony-laptop: support new hotkeys on the P, Z and EC series
platform/x86: Consistently select LEDS Kconfig options
sony-laptop: fix sparse non-ANSI function warning
intel_ips: fix sparse non-ANSI function warning
Support KHLB2 in the compal laptop driver
acer-wmi: Enabled Acer Launch Manager mode
[PATCH] intel_pmic_gpio: modify EOI handling following change of kernel irq subsystem
ACPI Thinkpad: We must always call va_end() after va_start() but do not do so in thinkpad_acpi.c::acpi_evalf()
acer-wmi: Initialize wlan/bluetooth/wwan rfkill software block state
acer-wmi: Detect the WiFi/Bluetooth/3G devices available
acer-wmi: Add 3G rfkill sysfs file
acer-wmi: Add acer wmi hotkey events support
platform/x86: Kconfig: Replace select by depends on ACPI_WMI
ideapad: pass ideapad_priv as argument (part 2)
ideapad: pass ideapad_priv as argument (part 1)
ideapad: add markups, unify comments and return result when init
ideapad: add hotkey support
ideapad: let camera power control entry under platform driver
ideapad: add platform driver for ideapad
fujitsu-laptop: fix compiler warning on pnp_ids
...
Linus Torvalds [Mon, 10 Jan 2011 23:39:23 +0000 (15:39 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68knommu: Need to check __get_user()/__put_user() result
m68knommu: signal.c __user annotations
m68knommu: Equivalent of "m68k: handle new gcc's"
m68knommu: f_pcr has been gone since headers' merge
m68knommu: Don't lose state if sigframe setup fails
m68knommu: Handle multiple pending signals
m68knommu: Switch to saner sigsuspend
m68knommu: Don't bother with SA_ONESHOT
m68k: Check __get_user()/__put_user() return value
m68k: Missing syscall_trace() on sigreturn
m68k: Fix stack mangling logics in sigreturn
m68k: If we fail to set sigframe up, just leave regs alone...
m68k: Don't lose state if sigframe setup fails
m68k: Simplify the singlestepping handling in signals
m68k: Switch to saner sigsuspend()
m68k: Resetting sa_handler in local copy of k_sigaction is pointless
m68k/sun3: Kill pte_unmap() warnings
Linus Torvalds [Mon, 10 Jan 2011 22:52:44 +0000 (14:52 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Avoid array overflow if there are too many cpus in SRAT table
[IA64] Remove unlikely from cpu_is_offline
[IA64] irq_ia64, use set_irq_chip
[IA64] perfmon: Change vmalloc to vzalloc and drop memset.
[IA64] eliminate race condition in smp_flush_tlb_mm
Linus Torvalds [Mon, 10 Jan 2011 22:50:38 +0000 (14:50 -0800)]
Merge branch 'for-torvalds' of git://git./linux/kernel/git/linusw/linux-stericsson
* 'for-torvalds' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ux500: allow 5500 and 8500 to be built together
ux500: modem_irq is only for 5500
ux500: dynamic SOC detection
ux500: rename MOP board Kconfig
ux500: remove build-time changing macros
Linus Torvalds [Mon, 10 Jan 2011 22:50:08 +0000 (14:50 -0800)]
Merge branch 'msm-smp' of git://codeaurora.org/quic/kernel/davidb/linux-msm
* 'msm-smp' of git://codeaurora.org/quic/kernel/davidb/linux-msm:
msm: add SMP support for msm
msm: hotplug: support cpu hotplug on msm
msm: timer: SMP timer support for msm
msm: scm-boot: Support for setting cold/warm boot addresses
msm: Secure Channel Manager (SCM) support
Jean Delvare [Mon, 10 Jan 2011 21:11:23 +0000 (22:11 +0100)]
i2c: Constify i2c_client where possible
Helper functions for I2C and SMBus transactions don't modify the
i2c_client that is passed to them, so it can be marked const.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Mon, 10 Jan 2011 21:11:23 +0000 (22:11 +0100)]
i2c-algo-bit: Complain about masters which can't read SCL
The I2C specification explicitly describes both SDA and SCL as
bidirectional lines. An I2C master with a read-only SCL is thus not
compliant. If a slow slave stretches the clock, errors will happen,
so the bus can't be considered as reliable.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Jean Delvare [Mon, 10 Jan 2011 21:11:23 +0000 (22:11 +0100)]
i2c-algo-bit: Refactor adapter registration
Use a function pointer to decide whether to call i2c_add_adapter or
i2c_add_numbered_adapter. This makes the code more compact than the
current strategy of having the common code in a separate function.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Peter Korsgaard [Mon, 10 Jan 2011 21:11:23 +0000 (22:11 +0100)]
i2c: Add generic I2C multiplexer using GPIO API
Add an i2c mux driver providing access to i2c bus segments using a
hardware MUX sitting on a master bus and controlled through gpio pins.
E.G. something like:
---------- ---------- Bus segment 1 - - - - -
| | SCL/SDA | |-------------- | |
| |------------| |
| | | | Bus segment 2 | |
| Linux | GPIO 1..N | MUX |--------------- Devices
| |------------| | | |
| | | | Bus segment M
| | | |---------------| |
---------- ---------- - - - - -
SCL/SDA of the master I2C bus is multiplexed to bus segment 1..M
according to the settings of the GPIO pins 1..N.
Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Joe Perches [Mon, 10 Jan 2011 21:11:22 +0000 (22:11 +0100)]
i2c-nforce2: Remove unnecessary cast of pci_get_drvdata
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Ben Hutchings [Mon, 10 Jan 2011 21:11:22 +0000 (22:11 +0100)]
i2c-i801: Include <linux/slab.h>
Commit
5a0e3ad6af8660be21ca98a971cd00f331318c05 added direct inclusion
of <linux/slab.h> to those source files that appeared to need it, but
somehow missed this. On most architectures <linux/slab.h> is still
indirectly included, but there are exceptions such as alpha.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
William Hubbs [Thu, 16 Dec 2010 19:26:58 +0000 (13:26 -0600)]
staging: speakup: fix failure handling
fix the failure handling in kobjects and the main function so that we
release the virtual keyboard if we exit due to another failure.
Signed-off-by: William Hubbs <w.d.hubbs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Márton Németh [Mon, 13 Dec 2010 20:59:09 +0000 (21:59 +0100)]
staging: usbip: remove double giveback of URB
In the vhci_urb_dequeue() function the TCP connection is checked twice.
Each time when the TCP connection is closed the URB is unlinked and given
back. Remove the second attempt of unlinking and giving back of the URB completely.
This patch fixes the bug described at https://bugzilla.kernel.org/show_bug.cgi?id=24872 .
Signed-off-by: Márton Németh <nm127@freemail.hu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Mon, 10 Jan 2011 19:18:59 +0000 (11:18 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (30 commits)
MAINTAINERS: Add tomoyo-dev-en ML.
SELinux: define permissions for DCB netlink messages
encrypted-keys: style and other cleanup
encrypted-keys: verify datablob size before converting to binary
trusted-keys: kzalloc and other cleanup
trusted-keys: additional TSS return code and other error handling
syslog: check cap_syslog when dmesg_restrict
Smack: Transmute labels on specified directories
selinux: cache sidtab_context_to_sid results
SELinux: do not compute transition labels on mountpoint labeled filesystems
This patch adds a new security attribute to Smack called SMACK64EXEC. It defines label that is used while task is running.
SELinux: merge policydb_index_classes and policydb_index_others
selinux: convert part of the sym_val_to_name array to use flex_array
selinux: convert type_val_to_struct to flex_array
flex_array: fix flex_array_put_ptr macro to be valid C
SELinux: do not set automatic i_ino in selinuxfs
selinux: rework security_netlbl_secattr_to_sid
SELinux: standardize return code handling in selinuxfs.c
SELinux: standardize return code handling in selinuxfs.c
SELinux: standardize return code handling in policydb.c
...
Rabin Vincent [Wed, 8 Dec 2010 05:38:01 +0000 (11:08 +0530)]
ux500: allow 5500 and 8500 to be built together
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Rabin Vincent [Wed, 8 Dec 2010 05:38:00 +0000 (11:08 +0530)]
ux500: modem_irq is only for 5500
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
[Modified to hit the right file]
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Rabin Vincent [Wed, 8 Dec 2010 05:37:59 +0000 (11:07 +0530)]
ux500: dynamic SOC detection
Dynamically detect the DBx500 SOC an revision based on the ASIC ID.
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Rabin Vincent [Wed, 8 Dec 2010 05:37:58 +0000 (11:07 +0530)]
ux500: rename MOP board Kconfig
Rename the MOP board Kconfig entries to the same name as the machine
type, so that the machine_is_*() macros work correctly.
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
[Updated to match changes in the tree]
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Rabin Vincent [Wed, 8 Dec 2010 05:37:57 +0000 (11:07 +0530)]
ux500: remove build-time changing macros
To allow the possiblity of building U8500 and U5500 support in the same
image.
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
[Rebased to latest changes in Russells tree]
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Mattia Dongili [Sat, 8 Jan 2011 09:47:29 +0000 (18:47 +0900)]
sony-laptop: support new hotkeys on the P, Z and EC series
Add new mappings for assist, VAIO, zoom and eject buttons present on
refurbished P, Z and EC models.
Reported-by: Gyorgy Jeney <nog.lkml@gmail.com>
Reported-by: Stephan Mueller <smueller@chronox.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Linus Torvalds [Mon, 10 Jan 2011 16:57:46 +0000 (08:57 -0800)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: (44 commits)
hwmon: Support for Dallas Semiconductor DS620
hwmon: driver for Sensirion SHT21 humidity and temperature sensor
hwmon: Add humidity attribute to sysfs ABI
hwmon: sysfs ABI updates
hwmon: (via-cputemp) sync hotplug handling with coretemp/pkgtemp
hwmon: (lm95241) Rewrite to avoid using macros
hwmon: (applesmc) Fix checkpatch errors and fix value range checks
hwmon: (applesmc) Update copyright information
hwmon: (applesmc) Silence driver
hwmon: (applesmc) Simplify feature sysfs handling
hwmon: (applesmc) Dynamic creation of fan files
hwmon: (applesmc) Extract all features generically
hwmon: (applesmc) Handle new temperature format
hwmon: (applesmc) Dynamic creation of temperature files
hwmon: (applesmc) Introduce a register lookup table
hwmon: (applesmc) Use pr_fmt and pr_<level>
hwmon: (applesmc) Relax the severity of device init failure
hwmon: (applesmc) Add MacBookAir3,1(3,2) support
hwmon: (w83627hf) Use pr_fmt and pr_<level>
hwmon: (w83627ehf) Use pr_fmt and pr_<level>
...
Linus Torvalds [Mon, 10 Jan 2011 16:57:03 +0000 (08:57 -0800)]
Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (29 commits)
of/flattree: forward declare struct device_node in of_fdt.h
ipmi: explicitly include of_address.h and of_irq.h
sparc: explicitly cast negative phandle checks to s32
powerpc/405: Fix missing #{address,size}-cells in i2c node
powerpc/5200: dts: refactor dts files
powerpc/5200: dts: Change combatible strings on localbus
powerpc/5200: dts: remove unused properties
powerpc/5200: dts: rename nodes to prepare for refactoring dts files
of/flattree: Update dtc to current mainline.
of/device: Don't register disabled devices
powerpc/dts: fix syntax bugs in bluestone.dts
of: Fixes for OF probing on little endian systems
of: make drivers depend on CONFIG_OF instead of CONFIG_PPC_OF
of/flattree: Add of_flat_dt_match() helper function
of_serial: explicitly include of_irq.h
of/flattree: Refactor unflatten_device_tree and add fdt_unflatten_tree
of/flattree: Reorder unflatten_dt_node
of/flattree: Refactor unflatten_dt_node
of/flattree: Add non-boottime device tree functions
of/flattree: Add Kconfig for EARLY_FLATTREE
...
Fix up trivial conflict in arch/sparc/prom/tree_32.c as per Grant.
Mark Brown [Mon, 10 Jan 2011 14:37:02 +0000 (14:37 +0000)]
platform/x86: Consistently select LEDS Kconfig options
Currently the x86 platform devices are not consistent about selecting
or depending on the LEDs Kconfig variables, and this inconsistency
leads to Kconfig getting upset and refusing to offer LEDs (even on
non-x86 platforms):
drivers/platform/x86/Kconfig:422:error: recursive dependency detected!
drivers/platform/x86/Kconfig:422: symbol EEEPC_WMI depends on ACPI_WMI
drivers/platform/x86/Kconfig:438: symbol ACPI_WMI is selected by ACER_WMI
drivers/platform/x86/Kconfig:18: symbol ACER_WMI depends on LEDS_CLASS
drivers/leds/Kconfig:10: symbol LEDS_CLASS is selected by EEEPC_WMI
Fix this by always selecting rather than depending on the symbols as
slightly more drivers use this approach already and it seems more
user friendly.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Randy Dunlap [Sun, 9 Jan 2011 03:56:44 +0000 (19:56 -0800)]
sony-laptop: fix sparse non-ANSI function warning
Fix sparse warning for non-ANSI function declaration:
drivers/platform/x86/sony-laptop.c:1134:35: warning: non-ANSI function declaration of function 'sony_nc_rfkill_update'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Randy Dunlap [Sun, 9 Jan 2011 03:55:40 +0000 (19:55 -0800)]
intel_ips: fix sparse non-ANSI function warning
Fix sparse warning for non-ANSI function declaration:
drivers/platform/x86/intel_ips.c:1477:25: warning: non-ANSI function declaration of function 'ips_link_to_i915_driver'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Alexey Dobriyan [Mon, 10 Jan 2011 06:18:25 +0000 (08:18 +0200)]
headers: kobject.h redux
Remove kobject.h from files which don't need it, notably,
sched.h and fs.h.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexey Dobriyan [Mon, 10 Jan 2011 06:17:10 +0000 (08:17 +0200)]
headers: path.h redux
Remove path.h from sched.h and other files.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 10 Jan 2011 16:48:46 +0000 (08:48 -0800)]
Merge branch 'stable/bug-fixes' of git://git./linux/kernel/git/konrad/xen
* 'stable/bug-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/event: validate irq before get evtchn by irq
xen/fb: fix potential memory leak
xen/fb: fix xenfb suspend/resume race.
xen: disable ACPI NUMA for PV guests
xen/irq: Cleanup the find_unbound_irq
Linus Torvalds [Mon, 10 Jan 2011 16:48:29 +0000 (08:48 -0800)]
Merge branch 'stable/generic' of git://git./linux/kernel/git/konrad/xen
* 'stable/generic' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: HVM X2APIC support
apic: Move hypervisor detection of x2apic to hypervisor.h
Linus Torvalds [Mon, 10 Jan 2011 16:38:01 +0000 (08:38 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
slub: Fix a crash during slabinfo -v
tracing/slab: Move kmalloc tracepoint out of inline code
slub: Fix slub_lock down/up imbalance
slub: Fix build breakage in Documentation/vm
slub tracing: move trace calls out of always inlined functions to reduce kernel code size
slub: move slabinfo.c to tools/slub/slabinfo.c
Linus Torvalds [Mon, 10 Jan 2011 16:29:25 +0000 (08:29 -0800)]
Merge branch 'misc' of git://git./linux/kernel/git/mmarek/kbuild-2.6
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
Documentation/kbuild: add info that 'choice' can have a symbol name
kbuild: add numeric --set-val option to scripts/config
headers_check: Fix warning text
headers_check: better search for functions in headers
scripts/coccinelle: update for compatability with Coccinelle 0.2.4
tags: put function prototypes back!
Kconfig: fix single letter command in scripts/config
gitignore: add scripts/recordmcount
Linus Torvalds [Mon, 10 Jan 2011 16:28:38 +0000 (08:28 -0800)]
Merge branch 'packaging' of git://git./linux/kernel/git/mmarek/kbuild-2.6
* 'packaging' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
deb-pkg: s/hdr/kernel_headers_/ && s/header/libc_headers_/
deb-pkg: Make deb-pkg generate a seperate linux-libc-dev deb
kbuild: create linux-headers package in deb-pkg
kbuild, deb-pkg: support overriding userland architecture
kbuild, deb-pkg: select userland architecture based on UTS_MACHINE
kbuild, deb-pkg: Fix build with paranoid umask
Linus Torvalds [Mon, 10 Jan 2011 16:28:17 +0000 (08:28 -0800)]
Merge branch 'kconfig' of git://git./linux/kernel/git/mmarek/kbuild-2.6
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
nconf: handle comment entries within choice/endchoice
kconfig: fix warning
kconfig: Make expr_copy() take a const argument
kconfig: simplify select-with-unmet-direct-dependency warning
kconfig: add more S_INT and S_HEX consistency checks
kconfig: fix `zconfdebug' extern declaration
kconfig/conf: merge duplicate switch's case
kconfig: fix typos
kbuild/gconf: add dummy inline for bind_textdomain_codeset()
kbuild/nconf: fix spaces damage
kconfig: nuke second argument of conf_write_symbol()
kconfig: do not define AUTOCONF_INCLUDED
kconfig: the day kconfig warns about "select"-abuse has come
Linus Torvalds [Mon, 10 Jan 2011 16:27:52 +0000 (08:27 -0800)]
Merge branch 'kbuild' of git://git./linux/kernel/git/mmarek/kbuild-2.6
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
mkuboot.sh: Fail if mkimage is missing
gen_init_cpio: checkpatch fixes
gen_init_cpio: Avoid race between call to stat() and call to open()
modpost: Fix address calculation in reloc_location()
Make fixdep error handling more explicit
checksyscalls: Fix stand-alone usage
modpost: Put .zdebug* section on white list
kbuild: fix interaction of CONFIG_IKCONFIG and KCONFIG_CONFIG
kbuild: export linux/{a.out,kvm,kvm_para}.h on headers_install_all
kbuild: introduce HDR_ARCH_LIST for headers_install_all
headers_install: check exit status of unifdef
gen_init_cpio: remove leading `/' from file names
scripts/genksyms: fix header usage
fixdep: use hash table instead of a single array
Linus Torvalds [Mon, 10 Jan 2011 16:22:33 +0000 (08:22 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
pata_platform: Remove CONFIG_HAVE_PATA_PLATFORM's dependencies.
pata_hpt37x: actually limit HPT370 to UltraDMA/66
pata_hpt3x2n: coding style cleanup
pata_hpt37x: coding style cleanup
pata_hpt366: coding style cleanup
pata_hpt3x2n: calculate average f_CNT
pata_hpt3x2n: clarify about HPT371N support
pata_hpt{37x|3x2n}: SATA mode filtering
[libata] avoid needlessly passing around ptr to SCSI completion func
[libata] new driver acard_ahci, for ATP8620 host controller
Linus Torvalds [Mon, 10 Jan 2011 16:15:37 +0000 (08:15 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (34 commits)
HID: roccat: Update sysfs attribute doc
HID: roccat: don't use #pragma pack
HID: roccat: Add support for Roccat Kone[+] v2
HID: roccat: reduce number of functions in kone and pyra drivers
HID: roccat: declare meaning of pack pragma usage in driver headers
HID: roccat: use class for char device for sysfs attribute creation
sysfs: Introducing binary attributes for struct class
HID: hidraw: add compatibility ioctl() for 32-bit applications.
HID: hid-picolcd: Fix memory leak in picolcd_debug_out_report()
HID: picolcd: fix misuse of logical operation in place of bitop
HID: usbhid: base runtime PM on modern API
HID: replace offsets values with their corresponding BTN_* defines
HID: hid-mosart: support suspend/resume
HID: hid-mosart: ignore buttons report
HID: hid-picolcd: don't use flush_scheduled_work()
HID: simplify an index check in hid_lookup_collection
HID: Hoist assigns from ifs
HID: Remove superfluous __inline__
HID: Use vzalloc for vmalloc/memset(,0...)
HID: Add and use hid_<level>: dev_<level> equivalents
...
Linus Torvalds [Mon, 10 Jan 2011 16:14:53 +0000 (08:14 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
spi / PM: Support dev_pm_ops
PM: Prototype the pm_generic_ operations
PM / Runtime: Generic resume shouldn't set RPM_ACTIVE unconditionally
PM: Use dev_name() in core device suspend and resume routines
PM: Permit registration of parentless devices during system suspend
PM: Replace the device power.status field with a bit field
PM: Remove redundant checks from core device resume routines
PM: Use a different list of devices for each stage of device suspend
PM: Avoid compiler warning in pm_noirq_op()
PM: Use pm_wakeup_pending() in __device_suspend()
PM / Wakeup: Replace pm_check_wakeup_events() with pm_wakeup_pending()
PM: Prevent dpm_prepare() from returning errors unnecessarily
PM: Fix references to basic-pm-debugging.txt in drivers-testing.txt
PM / Runtime: Add synchronous runtime interface for interrupt handlers (v3)
PM / Hibernate: When failed, in_suspend should be reset
PM / Hibernate: hibernation_ops->leave should be checked too
Freezer: Fix a race during freezing of TASK_STOPPED tasks
PM: Use proper ccflag flag in kernel/power/Makefile
PM / Runtime: Fix comments to match runtime callback code
Linus Torvalds [Mon, 10 Jan 2011 16:14:02 +0000 (08:14 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: use split transaction timeout only for split transactions
firewire: ohci: consolidate context status flags
firewire: ohci: cache the context run bit
firewire: ohci: flush AT contexts after bus reset - addendum
firewire: ohci: flush AT contexts after bus reset for OHCI 1.2
firewire: net: set carrier state at ifup
firewire: net: add carrier detection
firewire: net: ratelimit error messages
firewire: ohci: restart iso DMA contexts on resume from low power mode
firewire: ohci: restore GUID on resume.
firewire: ohci: use common buffer for self IDs and AR descriptors
firewire: ohci: optimize iso context checks in the interrupt handler
firewire: make PHY packet header format consistent
firewire: ohci: properly clear posted write errors
firewire: ohci: flush MMIO writes in the interrupt handler
firewire: ohci: fix AT context initialization error handling
firewire: ohci: Asynchronous Reception rewrite
firewire: core: Update WARN uses
firewire: nosy: char device is not seekable
Linus Torvalds [Mon, 10 Jan 2011 15:50:40 +0000 (07:50 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: unfold nilfs_dat_inode function
nilfs2: do not pass sbi to functions which can get it from inode
nilfs2: get rid of nilfs_mount_options structure
nilfs2: simplify nilfs_mdt_freeze_buffer
nilfs2: get rid of loaded flag from nilfs object
nilfs2: fix a checkpatch error in page.c
nilfs2: fiemap support
nilfs2: mark buffer heads as delayed until the data is written to disk
nilfs2: call nilfs_error inside bmap routines
fs/nilfs2/super.c: Use printf extension %pV
MAINTAINERS: add nilfs2 git tree entry
Linus Torvalds [Mon, 10 Jan 2011 15:47:11 +0000 (07:47 -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: use CreationTime like an i_generation field
cifs: switch cifs_open and cifs_create to use CIFSSMBUnixSetFileInfo
cifs: show "acl" in DebugData Features when it's compiled in
cifs: move "ntlmssp" and "local_leases" options out of experimental code
cifs: replace some hardcoded values with preprocessor constants
cifs: remove unnecessary locking around sequence_number
[CIFS] Fix minor merge conflict in fs/cifs/dir.c
CIFS: Simplify cifs_open code
CIFS: Simplify non-posix open stuff (try #2)
CIFS: Add match_port check during looking for an existing connection (try #4)
CIFS: Simplify ipv*_connect functions into one (try #4)
cifs: Support NTLM2 session security during NTLMSSP authentication [try #5]
cifs: don't overwrite dentry name in d_revalidate
Joe Jin [Fri, 7 Jan 2011 06:50:12 +0000 (14:50 +0800)]
xen/event: validate irq before get evtchn by irq
When retrieving the event channel number from irq, the irq
number may not be valid under some conditions.
So far that can be when we suspend/resume and irq ends with -1.
Validate and return sanitized irq and provide diagnostics information.
[v3: added unlikely on the WARN path]
[v2: reworded the commit message]
Signed-off-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Joe Jin [Fri, 7 Jan 2011 10:20:54 +0000 (18:20 +0800)]
xen/fb: fix potential memory leak
This patch fixes a potential memory leak when xenfb connect to
the backend fails.
Thanks for Ian's review and comments.
[v2: reworded the commit message a bit]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Joe Jin [Fri, 7 Jan 2011 10:17:17 +0000 (18:17 +0800)]
xen/fb: fix xenfb suspend/resume race.
When migrating guests over a long period we hit this:
<1>BUG: unable to handle kernel paging request at
0000000b819fdb98
<1>IP: [<
ffffffff812a588f>] notify_remote_via_irq+0x13/0x34
<4>PGD
94b10067 PUD 0
<0>Oops: 0000 [#1] SMP
.. snip..
Call Trace:
[<
ffffffff812712c9>] xenfb_send_event+0x5c/0x5e
[<
ffffffff8100ea5f>] ? xen_restore_fl_direct_end+0x0/0x1
[<
ffffffff81438d80>] ? _spin_unlock_irqrestore+0x16/0x18
[<
ffffffff812714ee>] xenfb_refresh+0x1b1/0x1d7
[<
ffffffff81270568>] ? sys_imageblit+0x1ac/0x458
[<
ffffffff81271786>] xenfb_imageblit+0x2f/0x34
[<
ffffffff8126a3e5>] soft_cursor+0x1b5/0x1c8
[<
ffffffff8126a137>] bit_cursor+0x4b6/0x4d7
[<
ffffffff8100ea5f>] ? xen_restore_fl_direct_end+0x0/0x1
[<
ffffffff81438d80>] ? _spin_unlock_irqrestore+0x16/0x18
[<
ffffffff81269c81>] ? bit_cursor+0x0/0x4d7
[<
ffffffff812656b7>] fb_flashcursor+0xff/0x111
[<
ffffffff812655b8>] ? fb_flashcursor+0x0/0x111
[<
ffffffff81071812>] worker_thread+0x14d/0x1ed
[<
ffffffff81075a8c>] ? autoremove_wake_function+0x0/0x3d
[<
ffffffff81438d80>] ? _spin_unlock_irqrestore+0x16/0x18
[<
ffffffff810716c5>] ? worker_thread+0x0/0x1ed
[<
ffffffff810756e3>] kthread+0x6e/0x76
[<
ffffffff81012dea>] child_rip+0xa/0x20
[<
ffffffff81011fd1>] ? int_ret_from_sys_call+0x7/0x1b
[<
ffffffff8101275d>] ? retint_restore_args+0x5/0x6
[<
ffffffff81012de0>] ? child_rip+0x0/0x20
Code: 6b ff 0c 8b 87 a4 db 9f 81 66 85 c0 74 08 0f b7 f8 e8 3b ff ff ff c9
c3 55 48 89 e5 48 83 ec 10 0f 1f 44 00 00 89 ff 48 6b ff 0c <8b> 87 a4 db 9f
81 66 85 c0 74 14 48 8d 75 f0 0f b7 c0 bf 04 00
RIP [<
ffffffff812a588f>] notify_remote_via_irq+0x13/0x34
RSP <
ffff8800e7bf7bd0>
CR2:
0000000b819fdb98
---[ end trace
098b4b74827595d0 ]---
The root cause of the panic is the race between the resume and reconnect to the backend.
Clearing the 'update_wanted' flag of xenfb before disconnecting from the
backend fixes this issue.
Signed-off-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Ian Campbell [Fri, 3 Dec 2010 09:54:03 +0000 (09:54 +0000)]
xen: disable ACPI NUMA for PV guests
Xen does not currently expose PV-NUMA information to PV
guests. Therefore disable NUMA for the time being to prevent the
kernel picking up on an host-level NUMA information which it might
come across in the firmware.
[ Added comment - Jeremy ]
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Linus Torvalds [Mon, 10 Jan 2011 15:46:26 +0000 (07:46 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/teigland/dlm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
dlm: sanitize work_start() in lowcomms.c
dlm: reduce cond_resched during send
dlm: use TCP_NODELAY
dlm: Use cmwq for send and receive workqueues
dlm: Handle application limited situations properly.
Linus Torvalds [Mon, 10 Jan 2011 15:43:54 +0000 (07:43 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mszeredi/fuse
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix ioctl ABI
fuse: allow batching of FORGET requests
fuse: separate queue for FORGET requests
fuse: ioctl cleanup
Fix up trivial conflict in fs/fuse/inode.c due to RCU lookup having done
the RCU-freeing of the inode in fuse_destroy_inode().
Randy Dunlap [Sun, 9 Jan 2011 03:40:33 +0000 (19:40 -0800)]
pipe_fs_i.h: fix kernel-doc warning
Fix kernel-doc notation warnings in pipe_fs_i.h:
Warning(include/linux/pipe_fs_i.h:58): No description found for parameter 'buffers'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Sun, 9 Jan 2011 03:38:02 +0000 (19:38 -0800)]
hrtimer.h: fix kernel-doc warning
Fix new kernel-doc notation warning in hrtimer.h:
Warning(include/linux/hrtimer.h:150): Excess struct/union/enum/typedef member 'first' description in 'hrtimer_clock_base'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Sun, 9 Jan 2011 03:37:20 +0000 (19:37 -0800)]
fs: fix dcache.h kernel-doc notation
Fix new kernel-doc notation warning in dcache.h:
Warning(include/linux/dcache.h:316): Excess function parameter 'Returns' description in '__d_rcu_to_refcount'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Sun, 9 Jan 2011 03:36:21 +0000 (19:36 -0800)]
fs: fix namei.c kernel-doc notation
Fix new kernel-doc notation warnings in fs/namei.c and spell
ECHILD correctly.
Warning(fs/namei.c:218): No description found for parameter 'flags'
Warning(fs/namei.c:425): Excess function parameter 'Returns' description in 'nameidata_drop_rcu'
Warning(fs/namei.c:478): Excess function parameter 'Returns' description in 'nameidata_dentry_drop_rcu'
Warning(fs/namei.c:540): Excess function parameter 'Returns' description in 'nameidata_drop_rcu_last'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Fri, 7 Jan 2011 22:44:06 +0000 (22:44 +0000)]
Blackfin: encode cpu-rev into uImage name
Encoding the cpu family name apparently confuses people when they try to
boot an image on a sub-variant, so encode the specific cpu name and the
silicon rev instead.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger [Fri, 10 Dec 2010 20:42:59 +0000 (20:42 +0000)]
Blackfin: bf54x: don't ack GPIO ints when unmasking them
When unmasking a GPIO interrupt on a BF54x part, the code will implicitly
ack any pending interrupts. This is not what unmasking should do and can
cause people to miss interrupts from their devices, so punt the code.
Reported-by: Rutger Hofman <rutger@cs.vu.nl>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger [Mon, 6 Dec 2010 21:12:23 +0000 (21:12 +0000)]
Blackfin: sram_free_with_lsl: do not ignore return value of sram_free
If there was an error in the lower free functions, we need to pass that
back up so the calling process is able to check things.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger [Wed, 24 Nov 2010 09:23:04 +0000 (09:23 +0000)]
Blackfin: boards: add missing "static" to peripheral lists
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Andreas Schallenberg [Wed, 24 Nov 2010 22:15:16 +0000 (22:15 +0000)]
Blackfin: DNP5370: new board port
Signed-off-by: Andreas Schallenberg <Andreas.Schallenberg@3alitydigital.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sonic Zhang [Tue, 23 Nov 2010 10:00:15 +0000 (10:00 +0000)]
Blackfin: bf518f-ezbrd: fix dsa resources
On bf518-ezbrd with DSA Ethernet switch enabled, on chip MAC is
connecting to phy at address 3. If allowing the netdevice framework to
probe both 3 phys of the switch when registering MAC phy, phy at address
1 is checked for link active status other than phy at address 3. If
connecting a cable to port 2 and leave port 1 open, link status in phy
2 and 3 are online, while that in phy 1 is offline. So, the phy layer
sets wrong offline status to net device on port 3. In this case, no data
can be transferred via ethernet port 2.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger [Wed, 17 Nov 2010 07:34:58 +0000 (07:34 +0000)]
Blackfin: move "-m elf32bfin" to general LDFLAGS
Common code now invokes the linker directly which causes build failures
when using an FDPIC toolchain. So move the emulation setting out of the
module-specific LDFLAGS and into the common LDFLAGS.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Vivi Li [Wed, 17 Nov 2010 04:26:19 +0000 (04:26 +0000)]
Blackfin: kgdb_test: make sure to initialize num2
We check its value at runtime, so we want to avoid garbage across runs.
Signed-off-by: Vivi Li <vivi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sonic Zhang [Wed, 17 Nov 2010 06:52:39 +0000 (06:52 +0000)]
Blackfin: kgdb: disable preempt schedule when running single step in kgdb
Otherwise, gdb continue operation after a breakpoint is hit may trap
into endless breakpoint.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sonic Zhang [Wed, 17 Nov 2010 06:19:28 +0000 (06:19 +0000)]
Blackfin: kgdb: disable interrupt when single stepping in ADEOS
When ADEOS and kgdb are both enabled, single step in linux kernel may be
scheduled to Xenomai core after return from interrupt handlers. This
blocks gdb continue operation after a break point is hit. So, disable
interrupt when running gdb single step.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sonic Zhang [Tue, 16 Nov 2010 09:41:07 +0000 (09:41 +0000)]
Blackfin: SMP: kgdb: apply anomaly 257 work around
When run kgdb testing, it looks like coreb hangs in single step or trap
exception without handling anomaly
05000257 properly on bf561 v0.5. But,
the anomaly list says it apply to bf561 v0.4 and bellow. Apply its work
around to 0.5 temporarily until the behavior and the root cause can be
confirmed by the hardware team.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger [Sun, 14 Nov 2010 00:02:53 +0000 (00:02 +0000)]
Blackfin: fix building IPIPE code when XIP is enabled
The low level assembly needs to use the pseudo_long_call helper so that
we use the right call insn when doing kernel XIP.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sonic Zhang [Fri, 12 Nov 2010 05:54:32 +0000 (05:54 +0000)]
Blackfin: SMP: kgdb: flush core internal write buffer before flushinv
KGDB single step in SMP kernel may hang forever in flushinv without a
CSYNC ahead. This is because the core internal write buffers need to
be flushed before invalidating the data cache to make sure the insn
fetch is not out of sync.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sonic Zhang [Fri, 12 Nov 2010 02:45:38 +0000 (02:45 +0000)]
Blackfin: sport_uart resources: remove unused secondary RX/TX pins
The SPORT/UART driver doesn't use the secondary channel pins, so don't
try and request them thus keeping other drivers from using them.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Stefan Weil [Sun, 7 Nov 2010 21:14:53 +0000 (22:14 +0100)]
Blackfin: tll6527m: fix spelling in unused code (struct name)
platfrom -> platform
This changes a struct name. The related code is conditionally
compiled and won't work because the include file linux/gpio-decoder.h
is missing, so removing this code would be an even better solution.
If the missing include file is added, it must fix the spelling, too.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sonic Zhang [Fri, 5 Nov 2010 11:29:46 +0000 (11:29 +0000)]
Blackfin: bf527-ezkit: add adau1373 chip address
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sonic Zhang [Thu, 4 Nov 2010 08:01:37 +0000 (08:01 +0000)]
Blackfin: no-mpu: fix masking of small uncached dma region
When using an uncached DMA region less than 1 MiB, we try to mask off
the whole last 1 MiB for it. Unfortunately, this fails as we forgot
to subtract one from the calculated mask, leading to the region still
be marked as cacheable.
Reported-by: Andrew Rook <andrew.rook@speakerbus.co.uk>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Steven Miao [Wed, 3 Nov 2010 09:25:09 +0000 (09:25 +0000)]
Blackfin: pm: drop irq save/restore in standby and suspend to mem callback
Since linux-2.6.31, the kernel suspend framework will do disable_irq/enable_irq,
so save/restore irq in standby and suspend to mem callback should be dropped.
Otherwise the common code notices things are enabled and complains.
Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Michael Hennerich [Thu, 28 Oct 2010 11:31:28 +0000 (11:31 +0000)]
MAINTAINERS: update Analog Devices support info
Add more Analog Devices driver entries and refine the differences between
Blackfin-specific code and processor independent drivers.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger [Thu, 28 Oct 2010 19:34:09 +0000 (15:34 -0400)]
Blackfin: dpmc.h: pull in new pll.h
Any consumer of dpmc.h expects to use VR_CTL, so also pull in the new
mach/pll.h header for those functions.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
projects / profile / ivi / kernel-adaptation-intel-automotive.git / log