Govindraj.R [Tue, 18 Oct 2011 11:02:14 +0000 (16:32 +0530)]
ARM: OMAP2+: UART: remove temporary variable used to count uart instance
Reuse the num_uarts variable itself to count number of uarts.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Jon Hunter [Wed, 9 Nov 2011 12:04:49 +0000 (17:34 +0530)]
ARM: OMAP2+: UART: Make the RX_TIMEOUT for DMA configurable for each UART
When using DMA there are two timeouts defined. The first timeout,
rx_timeout, is really a polling rate in which software polls the
DMA status to see if the DMA has finished. This is necessary for
the RX side because we do not know how much data we will receive.
The secound timeout, RX_TIMEOUT, is a timeout after which the
DMA will be stopped if no more data is received. To make this
clearer, rename rx_timeout as rx_poll_rate and rename the
function serial_omap_rx_timeout() to serial_omap_rxdma_poll().
The OMAP-Serial driver defines an RX_TIMEOUT of 3 seconds that is
used to indicate when the DMA for UART can be stopped if no more
data is received. The value is a global definition that is applied
to all instances of the UART.
Each UART may be used for a different purpose and so the timeout
required may differ. Make this value configurable for each UART so
that this value can be optimised for power savings.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Deepak K [Wed, 9 Nov 2011 12:03:38 +0000 (17:33 +0530)]
ARM: OMAP2+: UART: Allow UART parameters to be configured from board file.
The following UART parameters are defined within the UART driver:
1). Whether the UART uses DMA (dma_enabled), by default set to 0
2). The size of dma buffer (set to 4096 bytes)
3). The time after which the dma should stop if no more data is received.
4). The auto suspend delay that will be passed for pm_runtime_autosuspend
where uart will be disabled after timeout
Different UARTs may be used for different purpose such as the console,
for interfacing bluetooth chip, for interfacing to a modem chip, etc.
Therefore, it is necessary to be able to customize the above settings
for a given board on a per UART basis.
This change allows these parameters to be configured from the board file
and allows the parameters to be configured for each UART independently.
If a board does not define its own custom parameters for the UARTs, then
use the default parameters in the structure "omap_serial_default_info".
The default parameters are defined to be the same as the current settings
in the UART driver to avoid breaking the UART for any cuurnelty supported
boards. By default, make all boards use the default UART parameters.
Signed-off-by: Deepak K <deepak.k@ti.com>
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Mon, 7 Nov 2011 13:31:24 +0000 (19:01 +0530)]
ARM: OMAP2+: UART: Remove old and unused clocks handling funcs
With runtime adaptation done remove clock_enable/disbale API's
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Thu, 13 Oct 2011 08:41:09 +0000 (14:11 +0530)]
ARM: OMAP2+: UART: Add wakeup mechanism for omap-uarts
From the runtime callbacks enable hwmod wakeups for uart which will
internally enable io-pad wakeups for uarts if they have rx-pad pins
set as wakeup capabale.
Use the io-ring wakeup mechanism after uart clock gating and leave
the PM_WKST set for uart to default reset values cleanup the
code in serial.c which was handling PM_WKST reg.
Irq_chaing(PRM_DRIVER) is used to wakeup uart after uart clocks are gated
using pad wakeup mechanism.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Mon, 7 Nov 2011 13:30:33 +0000 (19:00 +0530)]
ARM: OMAP2+: UART: Move errata handling from serial.c to omap-serial
Move the errata handling mechanism from serial.c to omap-serial file
and utilise the same func in driver file.
Errata i202, i291 are moved to be handled with omap-serial
Moving the errata macro from serial.c file to driver header file
as from on errata will be handled in driver file itself.
Corrected errata id from chapter reference 2.15 to errata id i291.
Removed errata and dma_enabled fields from omap_uart_state struct
as they are no more needed with errata handling done within omap-serial.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Tue, 11 Oct 2011 13:41:27 +0000 (19:11 +0530)]
ARM: OMAP2+: UART: Get context loss count to context restore
Avoid unconditional context restore every time we gate uart
clocks. Check whether context loss happened based on which
we can context restore uart regs from uart_port structure.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Mon, 7 Nov 2011 13:28:55 +0000 (18:58 +0530)]
ARM: OMAP2+: UART: Remove uart reset function.
Remove the uart reset function which is configuring the
TX empty irq which can now be handled within omap-serial driver.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Mon, 7 Nov 2011 13:27:03 +0000 (18:57 +0530)]
ARM: OMAP2+: UART: Ensure all reg values configured are available from port structure
Add missing uart regs to uart_port structure which can be used in
context restore. Store dll, dlh, mdr1, scr, efr, lcr, mcr reg values
into uart_port structure while configuring individual port in termios
function.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Mon, 7 Nov 2011 13:26:12 +0000 (18:56 +0530)]
ARM: OMAP2+: UART: Remove context_save and move context restore to driver
Remove context save function from serial.c and move context restore
function to omap-serial. Remove all regs stored in omap_uart_state
for contex_save/restore, reg read write funcs used in context_save/restore,
io_addresses populated for read/write funcs.
Clock gating mechanism was done in serial.c and had no info on uart state
thus we needed context save and restore in serial.c
With runtime conversion and clock gating done within uart driver
context restore can be done from regs value available from uart_omap_port
structure.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Mon, 28 Feb 2011 12:42:23 +0000 (18:12 +0530)]
ARM: OMAP2+: UART: Add runtime pm support for omap-serial driver
Adapts omap-serial driver to use pm_runtime API's.
Use runtime runtime API's to handle uart clocks and obtain
device_usage statics. Set runtime API's usage to irq_safe so that
we can use get_sync from irq context. Auto-suspend for port specific
activities and put for reg access. Moving suspend/resume hooks
to dev_pm_ops structure and bind with config_suspend to avoid any
compilation warning if config_suspend is disabled.
By default uart autosuspend delay is set to -1 to avoid character loss
if uart's are autoidled and woken up on rx pin.
After boot up UART's can be autoidled by setting autosuspend delay from sysfs.
echo 3000 > /sys/devices/platform/omap/omap_uart.X/power/autosuspend_delay_ms
X=0,1,2,3 for UART1/2/3/4. Number of uarts available may vary across omap_soc.
Also if uart is not wakeup capable we can prevent runtime autosuspend by
forbiding runtime.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Tue, 11 Oct 2011 09:25:41 +0000 (14:55 +0530)]
ARM: OMAP2+: UART: Remove mapbase/membase fields from pdata.
The mapbase (start_address), membase(io_remap cookie) part of
pdata struct omap_uart_port_info are removed as this should be
derived within driver.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Mon, 7 Nov 2011 13:25:05 +0000 (18:55 +0530)]
ARM: OMAP2+: UART: Add default mux for all uarts.
Padconf wakeup is used to wakeup uart after uart fclks/iclks are gated.
Rx-Pad wakeup was done by writing to rx-pad offset value populated in
serial.c idle_init. Remove the direct reading and writing into rx pad.
Remove the padconf field part of omap_uart_state struct and pad offsets
populated.
Now with mux framework support we can use mux_utilities
along with hmwod framework to handle io-pad configuration and enable rx-pad
wake-up mechanism.
To avoid breaking any board support add default mux data for all uart's
if mux info is not passed from board file.
With the default pads populated in serial.c wakeup capability for
rx pads is set, this can be used to enable uart_rx io-pad wakeup from
hwmod framework. The pad values in 3430sdp/4430sdp/omap4panda board file
are same as the default pad values populated in serial.c. Remove pad values
from 3430sdp/4430sdp/omap4panda board file and use the default pads
from serial.c file.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Tue, 13 Sep 2011 08:31:01 +0000 (14:01 +0530)]
ARM: OMAP2+: UART: Cleanup part of clock gating mechanism for uart
Currently we use a shared irq handler to identify uart activity and then
trigger a timer. By default the timeout value is zero and can be set or
modified from sysfs. If there was no uart activity for the period set
through sysfs, the timer will expire and call timer handler this will
set a flag can_sleep using which decision to gate uart clocks can be taken.
Since the clock gating mechanism is outside the uart driver, we currently
use this mechanism. In preparation to runtime implementation for omap-serial
driver we can cleanup this mechanism and use runtime API's to gate uart clocks.
Removes the following:
* timer related info from local uart_state struct
* the code used to set timeout value from sysfs.
* irqflags used to set shared irq handler.
* un-used function omap_uart_check_wakeup.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Tue, 13 Sep 2011 08:02:32 +0000 (13:32 +0530)]
ARM: OMAP2+: UART: cleanup 8250 console driver support
We had been using traditional 8250 driver as uart console driver
prior to omap-serial driver. Since we have omap-serial driver
in mainline kernel for some time now it has been used as default
uart console driver on omap2+ platforms. Remove 8250 support for
omap-uarts.
Serial_in and serial_out override for 8250 serial driver is also
removed. Empty fifo read fix is already taken care with omap-serial
driver with data ready bit check from LSR reg before reading RX fifo.
Also waiting for THRE(transmit hold reg empty) is done with wait_for_xmitr
in omap-serial driver.
Serial_in/out overrides are not neceesary for omap-serial driver
and things that are taken with omap-serial driver are removed here.
Remove headers that were necessary to support 8250 support
and remove all config bindings done to keep 8250 backward compatibility
while adding omap-serial driver. Remove omap_uart_reset needed for
8250 autoconf.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Govindraj.R [Wed, 9 Nov 2011 11:52:30 +0000 (17:22 +0530)]
ARM: OMAP2+: UART: cleanup + remove uart pm specific API
In preparation to UART runtime conversion remove uart specific calls
from pm24xx/34xx files and their definition from serial.c
These func calls will no more be used with upcoming uart runtime design.
1.) omap_uart_prepare_suspend :- can be taken care with driver suspend hooks.
2.) omap_uart_enable_irqs :- Used to enable/disable uart irq's in suspend
path from PM code, this is removed as same is handled by
uart_suspend_port/uart_resume_port in omap-serial driver which will
do an port_shutdown on suspend freeing irq and port_startup on resume
enabling back irq.
3.) Remove prepare_idle/resume_idle calls used to gate uart clocks.
UART clocks can be gated within driver using runtime funcs
and be woken up using irq_chaining from omap_prm driver.
4.) Remove console_locking from idle path as clock gating is done withing
driver itself with runtime API. Remove is_suspending check used to acquire
console_lock.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Hemant Pedanekar [Tue, 13 Dec 2011 18:46:45 +0000 (10:46 -0800)]
ARM: OMAP: TI814X: Add cpu type macros and detection support
This patch adds cpu type, macros for identification of TI814X device.
Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
[tony@atomide.com: left out CK_TI814X for now]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Hemant Pedanekar [Tue, 13 Dec 2011 18:46:44 +0000 (10:46 -0800)]
ARM: OMAP: TI81XX: Prepare for addition of TI814X support
This patch updates existing macros, functions used for TI816X, to enable
addition of other SoCs belonging to TI81XX family (e.g., TI814X).
The approach taken is to use TI81XX/ti81xx for code/data going to be common
across all TI81XX devices.
cpu_is_ti81xx() is introduced to handle code common across TI81XX devices.
In addition, ti8168_evm_map_io() is now replaced with ti81xx_map_io() and moved
in mach-omap2/common.c as same will be used for TI814X and is not board
specific.
Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Leonid Iziumtsev [Tue, 13 Dec 2011 18:46:44 +0000 (10:46 -0800)]
ARM: OMAP: ID: Chip detection for OMAP4470
Add support for detection of the next chip in the OMAP4 family: OMAP4470 ES1.0
For more details on OMAP4470, visit:
http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12869&contentId=123362
Signed-off-by: Leonid Iziumtsev <x0153368@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
David Anders [Tue, 13 Dec 2011 18:46:44 +0000 (10:46 -0800)]
ARM: OMAP: id: add chip id recognition for omap4430 es2.3
allow for the omap4430 es2.3 revision to be recognized in the
omap4_check_revision() function.
most aspects of all omap4430 es2.x versions are identical, however
a number of small variations such as default pullup or pulldown
resistor configurations vary between revisions.
detailed information on silicon errata for omap4430 revisions can
be found at http://focus.ti.com/pdfs/wtbu/swpz009D.pdf
Signed-off-by: David Anders <x0132446@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Afzal Mohammed [Tue, 13 Dec 2011 18:46:43 +0000 (10:46 -0800)]
ARM: OMAP: am33xx: Update common OMAP machine specific sources
This patch updates the common machine specific source files for
support for AM33XX/AM335x with cpu type, macros for identification of
AM33XX/AM335X device.
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
[tony@atomide.com: updated for map_io and common.h changes, dropped CK_AM33XX]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Afzal Mohammed [Tue, 13 Dec 2011 18:46:43 +0000 (10:46 -0800)]
ARM: OMAP: am33xx: Update common omap platform files
This patch updates the common platform files with AM335X device
support (AM33XX family).
The approach taken in this patch is,
AM33XX device will be considered as OMAP3 variant, and a separate
SoC class created for AM33XX family of devices with a subclass type
for AM335X device, which is newly added device in the family.
This means, cpu_is_omap34xx(), cpu_is_am33xx() and cpu_is_am335x()
checks will return success on AM335X device.
A kernel config option CONFIG_SOC_OMAPAM33XX is added under OMAP3
to include support for AM33XX build.
Also, cpu_mask and RATE_IN_XXX flags have crossed 8 bit hence
struct clksel_rate.flags, struct prcm_config.flags and cpu_mask
are changed to u16 from u8.
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Hemant Pedanekar <hemantp@ti.com>
[tony@atomide.com: left out CK_AM33XX for now]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 6 Dec 2011 16:50:42 +0000 (17:50 +0100)]
ARM: 7194/1: OMAP: Fix build after a merge between v3.2-rc4 and ARM restart changes
ARM restart changes needed changes to common.h to make it local.
This conflicted with v3.2-rc4 DSS related hwmod changes that
git mergetool was not able to handle.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tony Lindgren [Tue, 6 Dec 2011 04:45:37 +0000 (05:45 +0100)]
ARM: 7192/1: OMAP: Fix build error for omap1_defconfig
Otherwise we get the following error:
In function 'omap_init_consistent_dma_size':
error: implicit declaration of function 'init_consistent_dma_size'
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 5 Dec 2011 23:27:54 +0000 (23:27 +0000)]
Merge branch 'vmalloc' of git://git.linaro.org/people/nico/linux into devel-stable
Russell King [Mon, 5 Dec 2011 23:20:17 +0000 (23:20 +0000)]
Merge branch 'for-rmk' of git://git./linux/kernel/git/will/linux into devel-stable
Conflicts:
arch/arm/common/gic.c
arch/arm/plat-omap/include/plat/common.h
Santosh Shilimkar [Mon, 5 Dec 2011 08:46:24 +0000 (09:46 +0100)]
ARM: 7189/1: OMAP3: Fix build break in cpuidle34xx.c because of irq function
Fix the below build break by including common.h
arch/arm/mach-omap2/cpuidle34xx.c: In function 'omap3_enter_idle':
arch/arm/mach-omap2/cpuidle34xx.c:117: error: implicit declaration of function 'omap_irq_pending'
make[1]: *** [arch/arm/mach-omap2/cpuidle34xx.o] Error 1
make: *** [arch/arm/mach-omap2] Error 2
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Santosh Shilimkar [Mon, 5 Dec 2011 08:44:58 +0000 (09:44 +0100)]
ARM: 7188/1: OMAP2PLUS: Fix build error: 'omap2/omap3_intc_handle_irq' undeclared.
Fix the build break by adding the necessary irq functions to
common header.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sat, 3 Dec 2011 09:11:54 +0000 (09:11 +0000)]
Merge branch 'irqchip-consolidation' of git://git./linux/kernel/git/maz/arm-platforms into devel-stable
Will Deacon [Fri, 2 Dec 2011 15:22:18 +0000 (15:22 +0000)]
Merge branches 'perf/event-nos', 'perf/updates' and 'perf/omap4' into for-rmk
Ming Lei [Wed, 2 Mar 2011 07:00:08 +0000 (15:00 +0800)]
arm: pmu: allow platform specific irq enable/disable handling
This patch introduces .enable_irq and .disable_irq into
struct arm_pmu_platdata, so platform specific irq enablement
can be handled after request_irq, and platform specific irq
disablement can be handled before free_irq.
This patch is for support of pmu irq routed from CTI on omap4.
Acked-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Ming Lei [Mon, 24 Oct 2011 14:45:53 +0000 (15:45 +0100)]
arm: introduce cross trigger interface helpers
OMAP4 uses cross trigger interface(CTI) to route
performance monitor irq to GIC, so introduce cti
helpers to make access for cti easily.
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Will Deacon [Mon, 14 Nov 2011 10:33:05 +0000 (10:33 +0000)]
ARM: perf: remove unused armpmu_get_max_events
armpmu_get_max_events is only called from perf_num_counters, so we can
inline it there. It existed as a separate entity as a hangover from
the original perf-based oprofile implementation.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Will Deacon [Thu, 29 Sep 2011 17:23:39 +0000 (18:23 +0100)]
ARM: perf: add support for stalled cycle ABI events
Commit
8f622422 ("perf events: Add generic front-end and back-end
stalled cycle event definitions") added two new ABI events for counting
stalled cycles.
This patch adds support for these new events to the ARM perf
implementation.
Cc: Jamie Iles <jamie@jamieiles.com>
Cc: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Will Deacon [Thu, 29 Sep 2011 14:29:02 +0000 (15:29 +0100)]
ARM: perf: clean and update ARMv7 event numbers
This patch updates the ARMv7 perf event numbers so that:
(1) A consistent naming scheme is used between different CPUs.
(2) Only events actually used by Linux are described.
(3) Where possible, architected events are used in preference to
CPU-specific events.
This results in the removal of a load of unused, hardcoded data and
makes it more clear as to which events are supported on each PMU.
Cc: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Axel Lin [Thu, 1 Dec 2011 15:25:45 +0000 (23:25 +0800)]
ARM: exynos4: Fix build error
Trivial fix to fix below build error:
CC arch/arm/mach-exynos/mach-universal_c210.o
arch/arm/mach-exynos/mach-universal_c210.c:24: error: expected identifier or '(' before '<' token
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Axel Lin [Thu, 1 Dec 2011 15:24:30 +0000 (23:24 +0800)]
ARM: exynos4: Fix build error due to 'gic_bank_offset' undeclared
Fix below build error:
CC arch/arm/mach-exynos/cpu.o
arch/arm/mach-exynos/cpu.c: In function 'exynos4_init_irq':
arch/arm/mach-exynos/cpu.c:245: error: 'gic_bank_offset' undeclared (first use in this function)
arch/arm/mach-exynos/cpu.c:245: error: (Each undeclared identifier is reported only once
arch/arm/mach-exynos/cpu.c:245: error: for each function it appears in.)
arch/arm/mach-exynos/cpu.c:243: warning: unused variable 'bank_offset'
make[1]: *** [arch/arm/mach-exynos/cpu.o] Error 1
make: *** [arch/arm/mach-exynos] Error 2
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Linus Torvalds [Thu, 1 Dec 2011 22:56:01 +0000 (14:56 -0800)]
Linux 3.2-rc4
Linus Torvalds [Thu, 1 Dec 2011 22:55:34 +0000 (14:55 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jlbec/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (31 commits)
ocfs2: avoid unaligned access to dqc_bitmap
ocfs2: Use filemap_write_and_wait() instead of write_inode_now()
ocfs2: honor O_(D)SYNC flag in fallocate
ocfs2: Add a missing journal credit in ocfs2_link_credits() -v2
ocfs2: send correct UUID to cleancache initialization
ocfs2: Commit transactions in error cases -v2
ocfs2: make direntry invalid when deleting it
fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free
ocfs2: Avoid livelock in ocfs2_readpage()
ocfs2: serialize unaligned aio
ocfs2: Implement llseek()
ocfs2: Fix ocfs2_page_mkwrite()
ocfs2: Add comment about orphan scanning
ocfs2: Clean up messages in the fs
ocfs2/cluster: Cluster up now includes network connections too
ocfs2/cluster: Add new function o2net_fill_node_map()
ocfs2/cluster: Fix output in file elapsed_time_in_ms
ocfs2/dlm: dlmlock_remote() needs to account for remastery
ocfs2/dlm: Take inflight reference count for remotely mastered resources too
ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery()
...
Akinobu Mita [Tue, 15 Nov 2011 22:56:34 +0000 (14:56 -0800)]
ocfs2: avoid unaligned access to dqc_bitmap
The dqc_bitmap field of struct ocfs2_local_disk_chunk is 32-bit aligned,
but not 64-bit aligned. The dqc_bitmap is accessed by ocfs2_set_bit(),
ocfs2_clear_bit(), ocfs2_test_bit(), or ocfs2_find_next_zero_bit(). These
are wrapper macros for ext2_*_bit() which need to take an unsigned long
aligned address (though some architectures are able to handle unaligned
address correctly)
So some 64bit architectures may not be able to access the dqc_bitmap
correctly.
This avoids such unaligned access by using another wrapper functions for
ext2_*_bit(). The code is taken from fs/ext4/mballoc.c which also need to
handle unaligned bitmap access.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Linus Torvalds [Thu, 1 Dec 2011 19:53:54 +0000 (11:53 -0800)]
Merge branch 'fixes' of ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
ARM: 7182/1: ARM cpu topology: fix warning
ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation
ARM: 7176/1: cpu_pm: register GIC PM notifier only once
ARM: 7175/1: add subname parameter to mfp_set_groupg callers
ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels
ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations
ARM: 7171/1: unwind: add unwind directives to bitops assembly macros
ARM: 7170/2: fix compilation breakage in entry-armv.S
ARM: 7168/1: use cache type functions for arch_get_unmapped_area
ARM: perf: check that we have a platform device when reserving PMU
ARM: 7166/1: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c
ARM: 7165/2: PL330: Fix typo in _prepare_ccr()
ARM: 7163/2: PL330: Only register usable channels
ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds
ARM: 7161/1: errata: no automatic store buffer drain
ARM: perf: initialise used_mask for fake PMU during validation
ARM: PMU: remove pmu_init declaration
ARM: PMU: re-export release_pmu symbol to modules
Linus Torvalds [Thu, 1 Dec 2011 16:28:53 +0000 (08:28 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix meta data raid-repair merge problem
Btrfs: skip allocation attempt from empty cluster
Btrfs: skip block groups without enough space for a cluster
Btrfs: start search for new cluster at the beginning
Btrfs: reset cluster's max_size when creating bitmap
Btrfs: initialize new bitmaps' list
Btrfs: fix oops when calling statfs on readonly device
Btrfs: Don't error on resizing FS to same size
Btrfs: fix deadlock on metadata reservation when evicting a inode
Fix URL of btrfs-progs git repository in docs
btrfs scrub: handle -ENOMEM from init_ipath()
Jan Schmidt [Thu, 1 Dec 2011 14:30:36 +0000 (09:30 -0500)]
Btrfs: fix meta data raid-repair merge problem
Commit
4a54c8c16 introduced raid-repair, killing the individual
readpage_io_failed_hook entries from inode.c and disk-io.c. Commit
4bb31e92 introduced new readahead code, adding a readpage_io_failed_hook to
disk-io.c.
The raid-repair commit had logic to disable raid-repair, if
readpage_io_failed_hook is set. Thus, the readahead commit effectively
disabled raid-repair for meta data.
This commit changes the logic to always attempt raid-repair when needed and
call the readpage_io_failed_hook in case raid-repair fails. This is much
more straight forward and should have been like that from the beginning.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Reported-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Linus Torvalds [Thu, 1 Dec 2011 00:25:02 +0000 (16:25 -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 RCU lockdep splats
IB/ipoib: Prevent hung task or softlockup processing multicast response
IB/qib: Fix over-scheduling of QSFP work
RDMA/cxgb4: Fix retry with MPAv1 logic for MPAv2
RDMA/cxgb4: Fix iw_cxgb4 count_rcqes() logic
IB/qib: Don't use schedule_work()
Linus Torvalds [Thu, 1 Dec 2011 00:24:43 +0000 (16:24 -0800)]
Merge branch 'dt-for-linus' of git://sources.calxeda.com/kernel/linux
* 'dt-for-linus' of git://sources.calxeda.com/kernel/linux:
of: Add Silicon Image vendor prefix
of/irq: of_irq_init: add check for parent equal to child node
Linus Torvalds [Thu, 1 Dec 2011 00:24:24 +0000 (16:24 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/broonie/regulator
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: twl: fix twl4030 support for smps regulators
regulator: fix use after free bug
regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator
Linus Torvalds [Thu, 1 Dec 2011 00:23:59 +0000 (16:23 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/arm/arm-soc
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits)
ARM: ux500: update defconfig
ARM: u300: update defconfig
ARM: at91: enable additional boards in existing soc defconfig files
ARM: at91: refresh soc defconfig files for 3.2
ARM: at91: rename defconfig files appropriately
ARM: OMAP2+: Fix Compilation error when omap_l3_noc built as module
ARM: OMAP2+: Remove empty io.h
ARM: OMAP2: select ARM_AMBA if OMAP3_EMU is defined
ARM: OMAP: smartreflex: fix IRQ handling bug
ARM: OMAP: PM: only register TWL with voltage layer when device is present
ARM: OMAP: hwmod: Fix the addr space, irq, dma count APIs
arm: mx28: fix bit operation in clock setting
ARM: imx: export imx_ioremap
ARM: imx/mm-imx3: conditionally compile i.MX31 and i.MX35 code
ARM: mx5: Fix checkpatch warnings in cpu-imx5.c
MAINTAINERS: Add missing directory
ARM: imx: drop 'ARCH_MX31' and 'ARCH_MX35'
ARM: imx6q: move clock register map to machine_desc.map_io
ARM: pxa168/gplugd: add the correct SSP device
ARM: Update mach-types to fix mxs build breakage
...
Vincent Guittot [Tue, 29 Nov 2011 14:50:20 +0000 (15:50 +0100)]
ARM: 7182/1: ARM cpu topology: fix warning
kernel/sched.c:7354:2: warning: initialization from incompatible pointer type
Align cpu_coregroup_mask prototype interface with sched_domain_mask_f typedef
use int cpu instead of unsigned int cpu
Cc: <stable@vger.kernel.org>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jon Medhurst (Tixy) [Tue, 29 Nov 2011 07:16:02 +0000 (08:16 +0100)]
ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
The SWP instruction is deprecated on ARMv6 and with ARMv7 it will be
UNDEFINED when CONFIG_SWP_EMULATE is selected. In this case, probing a
SWP instruction will cause an oops when the kprobes emulation code
executes an undefined instruction.
As the SWP instruction should be rare or non-existent in kernels for
ARMv6 and later, we can simply avoid these problems by not allowing
probing of these.
Reported-by: Leif Lindholm <leif.lindholm@arm.com>
Tested-by: Leif Lindholm <leif.lindholm@arm.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jon Medhurst (Tixy) [Tue, 29 Nov 2011 07:14:35 +0000 (08:14 +0100)]
ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
There is a kprobes testcase for the instruction "strd r2, [r3], r4".
This has unpredictable behaviour as it uses r3 for register writeback
addressing and also stores it to memory.
On a cortex A9, this testcase would fail because the instruction writes
the updated value of r3 to memory, whereas the kprobes emulation code
writes the original value.
Fix this by changing testcase to used r5 instead of r3.
Reported-by: Leif Lindholm <leif.lindholm@arm.com>
Tested-by: Leif Lindholm <leif.lindholm@arm.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000 (13:43 -0500)]
Btrfs: skip allocation attempt from empty cluster
If we don't have a cluster, don't bother trying to allocate from it,
jumping right away to the attempt to allocate a new cluster.
Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000 (13:43 -0500)]
Btrfs: skip block groups without enough space for a cluster
We test whether a block group has enough free space to hold the
requested block, but when we're doing clustered allocation, we can
save some cycles by testing whether it has enough room for the cluster
upfront, otherwise we end up attempting to set up a cluster and
failing. Only in the NO_EMPTY_SIZE loop do we attempt an unclustered
allocation, and by then we'll have zeroed the cluster size, so this
patch won't stop us from using the block group as a last resort.
Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000 (13:43 -0500)]
Btrfs: start search for new cluster at the beginning
Instead of starting at zero (offset is always zero), request a cluster
starting at search_start, that denotes the beginning of the current
block group.
Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000 (13:43 -0500)]
Btrfs: reset cluster's max_size when creating bitmap
The field that indicates the size of the largest contiguous chunk of
free space in the cluster is not initialized when setting up bitmaps,
it's only increased when we find a larger contiguous chunk. We end up
retaining a larger value than appropriate for highly-fragmented
clusters, which may cause pointless searches for large contiguous
groups, and even cause clusters that do not meet the density
requirements to be set up.
Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Alexandre Oliva [Mon, 28 Nov 2011 14:04:43 +0000 (12:04 -0200)]
Btrfs: initialize new bitmaps' list
We're failing to create clusters with bitmaps because
setup_cluster_no_bitmap checks that the list is empty before inserting
the bitmap entry in the list for setup_cluster_bitmap, but the list
field is only initialized when it is restored from the on-disk free
space cache, or when it is written out to disk.
Besides a potential race condition due to the multiple use of the list
field, filesystem performance severely degrades over time: as we use
up all non-bitmap free extents, the try-to-set-up-cluster dance is
done at every metadata block allocation. For every block group, we
fail to set up a cluster, and after failing on them all up to twice,
we fall back to the much slower unclustered allocation.
To make matters worse, before the unclustered allocation, we try to
create new block groups until we reach the 1% threshold, which
introduces additional bitmaps and thus block groups that we'll iterate
over at each metadata block request.
Li Zefan [Mon, 28 Nov 2011 08:43:00 +0000 (16:43 +0800)]
Btrfs: fix oops when calling statfs on readonly device
To reproduce this bug:
# dd if=/dev/zero of=img bs=1M count=256
# mkfs.btrfs img
# losetup -r /dev/loop1 img
# mount /dev/loop1 /mnt
OOPS!!
It triggered BUG_ON(!nr_devices) in btrfs_calc_avail_data_space().
To fix this, instead of checking write-only devices, we check all open
deivces:
# df -h /dev/loop1
Filesystem Size Used Avail Use% Mounted on
/dev/loop1 250M 28K 238M 1% /mnt
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Mike Fleetwood [Fri, 18 Nov 2011 18:55:01 +0000 (18:55 +0000)]
Btrfs: Don't error on resizing FS to same size
It seems overly harsh to fail a resize of a btrfs file system to the
same size when a shrink or grow would succeed. User app GParted trips
over this error. Allow it by bypassing the shrink or grow operation.
Signed-off-by: Mike Fleetwood <mike.fleetwood@googlemail.com>
Miao Xie [Fri, 18 Nov 2011 09:43:00 +0000 (17:43 +0800)]
Btrfs: fix deadlock on metadata reservation when evicting a inode
When I ran the xfstests, I found the test tasks was blocked on meta-data
reservation.
By debugging, I found the reason of this bug:
start transaction
|
v
reserve meta-data space
|
v
flush delay allocation -> iput inode -> evict inode
^ |
| v
wait for delay allocation flush <- reserve meta-data space
And besides that, the flush on evicting inode will block the thread, which
is reclaiming the memory, and make oom happen easily.
Fix this bug by skipping the flush step when evicting inode.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Arnd Hannemann [Wed, 16 Nov 2011 16:35:37 +0000 (17:35 +0100)]
Fix URL of btrfs-progs git repository in docs
The location of the btrfs-progs repository has been changed.
This patch updates the documentation accordingly.
Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Dan Carpenter [Wed, 16 Nov 2011 08:28:01 +0000 (11:28 +0300)]
btrfs scrub: handle -ENOMEM from init_ipath()
init_ipath() can return an ERR_PTR(-ENOMEM).
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Roland Dreier [Wed, 30 Nov 2011 02:01:53 +0000 (18:01 -0800)]
Merge branches 'cxgb4', 'ipoib', 'misc' and 'qib' into for-next
Linus Torvalds [Tue, 29 Nov 2011 22:43:22 +0000 (14:43 -0800)]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/linux-pm
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: Update comments describing device power management callbacks
PM / Sleep: Update documentation related to system wakeup
PM / Runtime: Make documentation follow the new behavior of irq_safe
PM / Sleep: Correct inaccurate information in devices.txt
PM / Domains: Document how PM domains are used by the PM core
PM / Hibernate: Do not leak memory in error/test code paths
Eric Dumazet [Tue, 29 Nov 2011 21:31:23 +0000 (22:31 +0100)]
IB: Fix RCU lockdep splats
Commit
f2c31e32b37 ("net: fix NULL dereferences in check_peer_redir()")
forgot to take care of infiniband uses of dst neighbours.
Many thanks to Marc Aurele who provided a nice bug report and feedback.
Reported-by: Marc Aurele La France <tsi@ualberta.ca>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: <stable@kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Mike Marciniszyn [Mon, 21 Nov 2011 13:43:54 +0000 (08:43 -0500)]
IB/ipoib: Prevent hung task or softlockup processing multicast response
This following can occur with ipoib when processing a multicast reponse:
BUG: soft lockup - CPU#0 stuck for 67s! [ib_mad1:982]
Modules linked in: ...
CPU 0:
Modules linked in: ...
Pid: 982, comm: ib_mad1 Not tainted 2.6.32-131.0.15.el6.x86_64 #1 ProLiant DL160 G5
RIP: 0010:[<
ffffffff814ddb27>] [<
ffffffff814ddb27>] _spin_unlock_irqrestore+0x17/0x20
RSP: 0018:
ffff8802119ed860 EFLAGS:
00000246
0000000000000004 RBX:
ffff8802119ed860 RCX:
000000000000a299
RDX:
ffff88021086c700 RSI:
0000000000000246 RDI:
0000000000000246
RBP:
ffffffff8100bc8e R08:
ffff880210ac229c R09:
0000000000000000
R10:
ffff88021278aab8 R11:
0000000000000000 R12:
ffff8802119ed860
R13:
ffffffff8100be6e R14:
0000000000000001 R15:
0000000000000003
FS:
0000000000000000(0000) GS:
ffff880028200000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0:
000000008005003b
CR2:
00000000006d4840 CR3:
0000000209aa5000 CR4:
00000000000406f0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Call Trace:
[<
ffffffffa032c247>] ? ipoib_mcast_send+0x157/0x480 [ib_ipoib]
[<
ffffffff8100bc8e>] ? apic_timer_interrupt+0xe/0x20
[<
ffffffff8100bc8e>] ? apic_timer_interrupt+0xe/0x20
[<
ffffffffa03283d4>] ? ipoib_path_lookup+0x124/0x2d0 [ib_ipoib]
[<
ffffffffa03286fc>] ? ipoib_start_xmit+0x17c/0x430 [ib_ipoib]
[<
ffffffff8141e758>] ? dev_hard_start_xmit+0x2c8/0x3f0
[<
ffffffff81439d0a>] ? sch_direct_xmit+0x15a/0x1c0
[<
ffffffff81423098>] ? dev_queue_xmit+0x388/0x4d0
[<
ffffffffa032d6b7>] ? ipoib_mcast_join_finish+0x2c7/0x510 [ib_ipoib]
[<
ffffffffa032dab8>] ? ipoib_mcast_sendonly_join_complete+0x1b8/0x1f0 [ib_ipoib]
[<
ffffffffa02a0946>] ? mcast_work_handler+0x1a6/0x710 [ib_sa]
[<
ffffffffa015f01e>] ? ib_send_mad+0xfe/0x3c0 [ib_mad]
[<
ffffffffa00f6c93>] ? ib_get_cached_lmc+0xa3/0xb0 [ib_core]
[<
ffffffffa02a0f9b>] ? join_handler+0xeb/0x200 [ib_sa]
[<
ffffffffa029e4fc>] ? ib_sa_mcmember_rec_callback+0x5c/0xa0 [ib_sa]
[<
ffffffffa029e79c>] ? recv_handler+0x3c/0x70 [ib_sa]
[<
ffffffffa01603a4>] ? ib_mad_completion_handler+0x844/0x9d0 [ib_mad]
[<
ffffffffa015fb60>] ? ib_mad_completion_handler+0x0/0x9d0 [ib_mad]
[<
ffffffff81088830>] ? worker_thread+0x170/0x2a0
[<
ffffffff8108e160>] ? autoremove_wake_function+0x0/0x40
[<
ffffffff810886c0>] ? worker_thread+0x0/0x2a0
[<
ffffffff8108ddf6>] ? kthread+0x96/0xa0
[<
ffffffff8100c1ca>] ? child_rip+0xa/0x20
Coinciding with stack trace is the following message:
ib0: ib_address_create failed
The code below in ipoib_mcast_join_finish() will note the above
failure in the address handle but otherwise continue:
ah = ipoib_create_ah(dev, priv->pd, &av);
if (!ah) {
ipoib_warn(priv, "ib_address_create failed\n");
} else {
The while loop at the bottom of ipoib_mcast_join_finish() will attempt
to send queued multicast packets in mcast->pkt_queue and eventually
end up in ipoib_mcast_send():
if (!mcast->ah) {
if (skb_queue_len(&mcast->pkt_queue) < IPOIB_MAX_MCAST_QUEUE)
skb_queue_tail(&mcast->pkt_queue, skb);
else {
++dev->stats.tx_dropped;
dev_kfree_skb_any(skb);
}
My read is that the code will requeue the packet and return to the
ipoib_mcast_join_finish() while loop and the stage is set for the
"hung" task diagnostic as the while loop never sees a non-NULL ah, and
will do nothing to resolve.
There are GFP_ATOMIC allocates in the provider routines, so this is
possible and should be dealt with.
The test that induced the failure is associated with a host SM on the
same server during a shutdown.
This patch causes ipoib_mcast_join_finish() to exit with an error
which will flush the queued mcast packets. Nothing is done to unwind
the QP attached state so that subsequent sends from above will retry
the join.
Reviewed-by: Ram Vepa <ram.vepa@qlogic.com>
Reviewed-by: Gary Leshner <gary.leshner@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Linus Torvalds [Tue, 29 Nov 2011 19:13:22 +0000 (11:13 -0800)]
Merge branch 'slab/urgent' of git://git./linux/kernel/git/penberg/linux
* 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
slub: avoid potential NULL dereference or corruption
slub: use irqsafe_cpu_cmpxchg for put_cpu_partial
slub: move discard_slab out of node lock
slub: use correct parameter to add a page to partial list tail
Linus Torvalds [Tue, 29 Nov 2011 16:59:12 +0000 (08:59 -0800)]
Merge branch 'dev' of git://git./linux/kernel/git/tytso/ext4
* 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix racy use-after-free in ext4_end_io_dio()
Arnd Bergmann [Tue, 29 Nov 2011 14:50:17 +0000 (14:50 +0000)]
Merge branch 'defconfigs-for-arnd' of git://git.linaro.org/people/triad/linux-stericsson into fixes
Pawel Moll [Tue, 8 Nov 2011 11:35:20 +0000 (11:35 +0000)]
of: Add Silicon Image vendor prefix
"sil" is the most commonly used abbreviation for Silicon
Image products.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Rob Herring [Mon, 28 Nov 2011 02:16:33 +0000 (20:16 -0600)]
of/irq: of_irq_init: add check for parent equal to child node
With the revert of "of/irq: of_irq_find_parent: check for parent equal to
child" (
dc9372808412edb), we need another way to handle parent node equal
to the child node. This can simply be handled in of_irq_init by checking
for this condition.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Pawel Moll <pawel.moll@arm.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Linus Walleij [Wed, 16 Nov 2011 19:30:35 +0000 (20:30 +0100)]
ARM: ux500: update defconfig
This updates the Ux500 defconfig with the new drivers for HWSEM
and AB5500 core that were merged in the 3.2 cycle.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Wed, 16 Nov 2011 19:44:13 +0000 (20:44 +0100)]
ARM: u300: update defconfig
This updates the U300 defconfig to support some new drivers like
FSMC, sets it to use the MMC clock gating scheme, and removes
some stale config options.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Torvalds [Tue, 29 Nov 2011 03:28:32 +0000 (19:28 -0800)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: convert drivers/hwmon/* to use module_platform_driver()
hwmon: Remove redundant spi driver bus initialization
Linus Torvalds [Tue, 29 Nov 2011 00:37:35 +0000 (16:37 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/aegl/linux
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
efivars: add missing parameter to efi_pstore_read()
Christoph Fritz [Mon, 28 Nov 2011 22:49:33 +0000 (23:49 +0100)]
efivars: add missing parameter to efi_pstore_read()
In the case where CONFIG_PSTORE=n, the function efi_pstore_read() doesn't
have the correct list of parameters. This patch provides a definition
of efi_pstore_read() with 'char **buf' added to fix this warning:
"drivers/firmware/efivars.c:609: warning: initialization from".
problem introduced in commit
f6f8285132907757ef84ef8dae0a1244b8cde6ac
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Linus Torvalds [Mon, 28 Nov 2011 21:55:59 +0000 (13:55 -0800)]
Merge branch 'for-3.2-fixes' of git://git./linux/kernel/git/tj/cgroup
* 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup_freezer: fix freezing groups with stopped tasks
Linus Torvalds [Mon, 28 Nov 2011 21:49:43 +0000 (13:49 -0800)]
Merge branch 'for-3.2-fixes' of git://git./linux/kernel/git/tj/percpu
* 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: explain why per_cpu_ptr_to_phys() is more complicated than necessary
percpu: fix chunk range calculation
percpu: rename pcpu_mem_alloc to pcpu_mem_zalloc
Rafael J. Wysocki [Wed, 23 Nov 2011 20:20:32 +0000 (21:20 +0100)]
PM: Update comments describing device power management callbacks
The comments describing device power management callbacks in
include/pm.h are outdated and somewhat confusing, so make them
reflect the reality more accurately.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Rafael J. Wysocki [Wed, 23 Nov 2011 20:20:15 +0000 (21:20 +0100)]
PM / Sleep: Update documentation related to system wakeup
The system wakeup section of Documentation/power/devices.txt is
outdated, so make it agree with the current code.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Rafael J. Wysocki [Wed, 23 Nov 2011 20:20:07 +0000 (21:20 +0100)]
PM / Runtime: Make documentation follow the new behavior of irq_safe
The runtime PM core code behavior related to the power.irq_safe
device flag has changed recently and the documentation should be
modified to reflect it.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Rafael J. Wysocki [Wed, 23 Nov 2011 20:19:57 +0000 (21:19 +0100)]
PM / Sleep: Correct inaccurate information in devices.txt
The documentation file Documentation/power/devices.txt contains some
information that isn't correct any more due to code modifications
made after that file had been created (or updated last time). Fix
this.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Rafael J. Wysocki [Wed, 23 Nov 2011 20:18:39 +0000 (21:18 +0100)]
PM / Domains: Document how PM domains are used by the PM core
The current power management documentation in Documentation/power/
either doesn't cover PM domains at all, or gives inaccurate
information about them, so update the relevant files in there to
follow the code.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Mike Marciniszyn [Wed, 9 Nov 2011 22:07:22 +0000 (17:07 -0500)]
IB/qib: Fix over-scheduling of QSFP work
Don't over-schedule QSFP work on driver initialization. It could end
up being run simultaneously on two different CPUs resulting in bad
EEPROM reads. In combination with setting the physical IB link state
prior to the IBC being brought out of reset, this can cause the link
state machine to start training early with wrong settings.
Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Kumar Sanghvi [Mon, 28 Nov 2011 16:39:15 +0000 (22:09 +0530)]
RDMA/cxgb4: Fix retry with MPAv1 logic for MPAv2
Fix logic so that we don't retry with MPAv1 once we have done that
already. Otherwise, we end up retrying with MPAv1 even when its not
needed on getting peer aborts - and this could lead to kernel panic.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Jonathan Lallinger [Thu, 20 Oct 2011 18:25:14 +0000 (13:25 -0500)]
RDMA/cxgb4: Fix iw_cxgb4 count_rcqes() logic
Fix another place in the code where logic dealing with the t4_cqe was
using the wrong QID. This fixes the counting logic so that it tests
against the SQ QID instead of the RQ QID when counting RCQES.
Signed-off by: Jonathan Lallinger <jonathan@ogc.us>
Signed-off by: Steve Wise <swise@ogc.us>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Linus Torvalds [Mon, 28 Nov 2011 19:27:57 +0000 (11:27 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/aegl/linux
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
pstore: pass allocated memory region back to caller
Tero Kristo [Mon, 28 Nov 2011 14:53:19 +0000 (16:53 +0200)]
regulator: twl: fix twl4030 support for smps regulators
SMPS regulator voltage control differs from the one of the LDO ones.
Current TWL code was using LDO regulator ops for controlling the SMPS
regulators, which fails. This was fixed fixed by adding separate
regulator type which uses correct logic and calculations for the
voltage levels.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
Linus Torvalds [Mon, 28 Nov 2011 17:05:23 +0000 (09:05 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/exynos: fixed wrong err ptr usage and destroy call in exeception
drm/exynos: Add disable of manager
drm/exynos: include linux/module.h
drm/exynos: fix vblank bug.
drm/exynos: changed buffer structure.
drm/exynos: removed unnecessary variable.
drm/exynos: use gem create function generically
drm/exynos: checked for null pointer
drm/exynos: added crtc dpms for disable crtc
drm/exynos: removed meaningless parameter from fbdev update
drm/exynos: restored kernel_fb_list when reiniting fb_helper
drm/exynos: changed exynos_drm_display to exynos_drm_display_ops
drm/exynos: added manager object to connector
drm/exynos: fixed converting between display mode and timing
drm/exynos: fixed connector flag with hpd and interlace scan for hdmi
drm/exynos: added kms poll for handling hpd event
Linus Torvalds [Mon, 28 Nov 2011 16:59:11 +0000 (08:59 -0800)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: Ensure we return EAGAIN in xs_nospace if congestion is cleared
Linus Torvalds [Mon, 28 Nov 2011 16:53:36 +0000 (08:53 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (28 commits)
ALSA: hda - Fix jack-detection control of VT1708
ALSA: hda - cut and paste typo in cs420x_models[]
ALSA: hda/realtek - Minor cleanup
ALSA: hda/realtek - Fix missing inits of item indices for auto-mic
ALSA: hda - Fix invalid pin and GPIO for Apple laptops with CS codecs
ALSA: hda - Check subdevice mask in snd_hda_check_board_codec_sid_config()
ALSA: hda - fail ELD reading early
ALSA: lx6464es - fix device communication via command bus
ALSA: lx6464es - command buffer API cleanup
ALSA: hda - repoll ELD content for multiple times
ALSA: hdspm - Fix PCI ID for PCIe RME MADI cards
ASoC: Ensure WM8731 register cache is synced when resuming from disabled
ALSA: cs5535 - Fix an endianness conversion
ASoC: cs4271: Fix wrong mask parameter in some snd_soc_update_bits calls
ASoC: wm_hubs: fix DB_RANGE size
ASoC: wm9090: fix DB_RANGE size
ASoC: wm8993: fix DB_RANGE size
ASoC: wm8962: fix DB_RANGE size
ASoC: sgtl5000: fix DB_RANGE size
ASoC: rt5631: fix DB_RANGE size
...
Linus Torvalds [Mon, 28 Nov 2011 16:43:52 +0000 (08:43 -0800)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hrtimer: Fix extra wakeups from __remove_hrtimer()
timekeeping: add arch_offset hook to ktime_get functions
clocksource: Avoid selecting mult values that might overflow when adjusted
time: Improve documentation of timekeeeping_adjust()
Linus Torvalds [Mon, 28 Nov 2011 16:43:32 +0000 (08:43 -0800)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Don't allow per cpu interrupts to be suspended
Edward Donovan [Mon, 28 Nov 2011 04:07:34 +0000 (23:07 -0500)]
genirq: fix regression in irqfixup, irqpoll
Commit
fa27271bc8d2("genirq: Fixup poll handling") introduced a
regression that broke irqfixup/irqpoll for some hardware configurations.
Amidst reorganizing 'try_one_irq', that patch removed a test that
checked for 'action->handler' returning IRQ_HANDLED, before acting on
the interrupt. Restoring this test back returns the functionality lost
since 2.6.39. In the current set of tests, after 'action' is set, it
must precede '!action->next' to take effect.
With this and my previous patch to irq/spurious.c,
c75d720fca8a, all
IRQ regressions that I have encountered are fixed.
Signed-off-by: Edward Donovan <edward.donovan@numble.net>
Reported-and-tested-by: Rogério Brito <rbrito@ime.usp.br>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org (2.6.39+)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lothar Waßmann [Mon, 28 Nov 2011 14:38:37 +0000 (15:38 +0100)]
regulator: fix use after free bug
This is caused by dereferencing 'rdev' after device_unregister() in
the regulator_unregister() function. 'rdev' is freed by
device_unregister(), so it must not be dereferenced after this call.
[Edited commit message for legibility -- broonie]
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Dave Airlie [Mon, 28 Nov 2011 14:17:09 +0000 (14:17 +0000)]
Merge branch 'exynos-drm' of git://git.infradead.org/users/kmpark/linux-samsung into drm-fixes
* 'exynos-drm' of git://git.infradead.org/users/kmpark/linux-samsung:
drm/exynos: fixed wrong err ptr usage and destroy call in exeception
drm/exynos: Add disable of manager
drm/exynos: include linux/module.h
drm/exynos: fix vblank bug.
drm/exynos: changed buffer structure.
drm/exynos: removed unnecessary variable.
drm/exynos: use gem create function generically
drm/exynos: checked for null pointer
drm/exynos: added crtc dpms for disable crtc
drm/exynos: removed meaningless parameter from fbdev update
drm/exynos: restored kernel_fb_list when reiniting fb_helper
drm/exynos: changed exynos_drm_display to exynos_drm_display_ops
drm/exynos: added manager object to connector
drm/exynos: fixed converting between display mode and timing
drm/exynos: fixed connector flag with hpd and interlace scan for hdmi
drm/exynos: added kms poll for handling hpd event
Axel Lin [Mon, 28 Nov 2011 06:06:31 +0000 (14:06 +0800)]
regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator
In current implementation, the pointer ri is not NULL if no id is matched.
Fix it by checking i == ARRAY_SIZE(aat2870_regulators) if no id is matched.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
Linus Torvalds [Sun, 27 Nov 2011 20:05:56 +0000 (12:05 -0800)]
Merge branch 'fbdev-for-linus' of git://github.com/schandinat/linux-2.6
* 'fbdev-for-linus' of git://github.com/schandinat/linux-2.6:
viafb: correct sync polarity for OLPC DCON
video:da8xx-fb: Disable and reset sequence on version2 of LCDC
OMAPDSS: DISPC: skip scaling calculations when not scaling
OMAPFB: fix compilation warnings due to missing include
OMAPDSS: HDMI: fix returned HDMI pixel clock
Rafael J. Wysocki [Sat, 26 Nov 2011 22:37:43 +0000 (23:37 +0100)]
ath9k: Revert change that broke AR928X on Acer Ferrari One
Revert a hunk in drivers/net/wireless/ath/ath9k/hw.c introduced by
commit
2577c6e8f232 ("ath9k_hw: Add support for AR946/8x chipsets") that
caused a nasty regression to appear on my Acer Ferrari One (the box
locks up entirely at random times after the wireless has been started
without any way to get debug information out of it).
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Takashi Iwai [Sun, 27 Nov 2011 16:59:07 +0000 (17:59 +0100)]
Merge branch 'fix/hda' into for-linus
Takashi Iwai [Thu, 24 Nov 2011 15:33:09 +0000 (16:33 +0100)]
ALSA: hda - Fix jack-detection control of VT1708
VT1708 has no support for unsolicited events per jack-plug, the driver
implements the workq for polling the jack-detection. The mixer element
"Jack Detect" was supposed to control this behavior on/off, but this
doesn't work properly as is now. The workq is always started and the
HP automute is always enabled.
This patch fixes the jack-detect control behavior by triggering / stopping
the work appropriately at the state change. Also the work checks the
internal state to continue scheduling or not.
Cc: <stable@kernel.org> [v3.1]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dan Carpenter [Thu, 24 Nov 2011 11:48:24 +0000 (14:48 +0300)]
ALSA: hda - cut and paste typo in cs420x_models[]
The CS420X_IMAC27 was copied from the line before but CS420X_APPLE
was clearly intented.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>