tjh.dev
commits
Pull ARM SoC fixes from Olof Johansson:
"We've been sitting on our fixes branch for a while, so this batch is
unfortunately on the large side.
A lot of these are tweaks and fixes to device trees, fixing various
bugs around clocks, reg ranges, etc. There's also a few defconfig
updates (which are on the late side, no more of those).
All in all the diffstat is bigger than ideal at this time, but nothing
in here seems particularly risky"
* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
reset: sunxi: fix spinlock initialization
ARM: dts: disable CCI on exynos5420 based arndale-octa
drivers: bus: check cci device tree node status
ARM: rockchip: disable jtag/sdmmc autoswitching on rk3288
ARM: nomadik: fix up leftover device tree pins
ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree
ARM: at91/dt: sam9263: Add missing clocks to lcdc node
ARM: at91: sama5d3: dt: correct the sound route
ARM: at91/dt: sama5d4: fix the timer reg length
ARM: exynos_defconfig: Enable LM90 driver
ARM: exynos_defconfig: Enable options for display panel support
arm: dts: Use pmu_system_controller phandle for dp phy
ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
ARM: dts: berlin: correct BG2Q's SM GPIO location.
ARM: dts: berlin: add broken-cd and set bus width for eMMC in Marvell DMP DT
ARM: dts: berlin: fix io clk and add missing core clk for BG2Q sdhci2 host
ARM: dts: Revert disabling of smc91x for n900
ARM: dts: imx51-babbage: Fix ULPI PHY reset modelling
ARM: dts: dra7-evm: fix qspi device tree partition size
ARM: omap2plus_defconfig: use CONFIG_CPUFREQ_DT
...
Pull clock driver fixes from Mike Turquette:
"Small number of fixes for clock drivers and a single null pointer
dereference fix in the framework core code.
The driver fixes vary from fixing section mismatch warnings to
preventing machines from hanging (and preventing developers from
crying)"
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
clk: fix possible null pointer dereference
Revert "clk: ppc-corenet: Fix Section mismatch warning"
clk: rockchip: fix deadlock possibility in cpuclk
clk: berlin: bg2q: remove non-exist "smemc" gate clock
clk: at91: keep slow clk enabled to prevent system hang
clk: rockchip: fix rk3288 cpuclk core dividers
clk: rockchip: fix rk3066 pll lock bit location
clk: rockchip: Fix clock gate for rk3188 hclk_emem_peri
clk: rockchip: add CLK_IGNORE_UNUSED flag to fix rk3066/rk3188 USB Host
Merge "Samsung fixes for v3.19" from Kukjin Kim:
Samsung fixes for v3.19
- exynos_defconfig: enable LM90 driver and display panel support
- HWMON
- SENSORS_LM90
- Direct Rendering Manager (DRM)
- DRM bridge registration and lookup framework
- Parade ps8622/ps8625 eDP/LVDS bridge
- NXP ptn3460 eDP/LVDS bridge
- Exynos Fully Interactive Mobile Display controller (FIMD)
- Panel registration and lookup framework
- Simple panels
- Backlight & LCD device support
- use pmu_system_controller phandle for dp phy
: DP PHY requires pmu_system_controller to handle PMU reg. now
* tag 'samsung-fixes-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: exynos_defconfig: Enable LM90 driver
ARM: exynos_defconfig: Enable options for display panel support
arm: dts: Use pmu_system_controller phandle for dp phy
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull SCSI fixes from James Bottomley:
"This is one fix for a Multiqueue sleeping in invalid context problem
and a MAINTAINER file update for Qlogic"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ->queue_rq can't sleep
MAINTAINERS: Update maintainer list for qla4xxx
The commit 646cafc6 (clk: Change clk_ops->determine_rate to
return a clk_hw as the best parent) opens a possibility for
null pointer dereference, fix this.
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Call spin_lock_init() before the spinlocks are used, both in early init
and probe functions preventing a lockdep splat.
I have been observing lockdep complaining [1] during boot on my a80 optimus [2]
when CONFIG_PROVE_LOCKING has been enabled. This patch resolves the splat,
and has been tested on a few other sunxi platforms without issue.
[1] http://storage.kernelci.org/next/next-20150107/arm-multi_v7_defconfig+CONFIG_PROVE_LOCKING=y/lab-tbaker/boot-sun9i-a80-optimus.html
[2] http://kernelci.org/boot/?a80-optimus
Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Cc: <stable@vger.kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
multi_v7_defconfig has it as Y already, so build it in here, too, for
consistency, and therefore build in HWMON as well.
Signed-off-by: Andreas Faerber <afaerber@suse.de>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Pull dmaengine fixes from Vinod Koul:
"Two patches, the first by Andy to fix dw dmac runtime pm and second
one by me to fix the dmaengine headers in MAINTAINERS"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: dw: balance PM runtime calls
MAINTAINERS: dmaengine: fix the header file for dmaengine
The blk-mq ->queue_rq method is always called from process context,
but might have preemption disabled. This means we still always
have to use GFP_ATOMIC for memory allocations, and thus need to
revert part of commit 3c356bde1 ("scsi: stop passing a gfp_mask
argument down the command setup path").
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Tested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
This reverts commit da788acb28386aa896224e784954bb73c99ff26c.
That commit tried to fix the section mismatch warning by moving the
ppc_corenet_clk_driver struct to init section. This is definitely wrong
because the kernel would free the memories occupied by this struct
after boot while this driver is still registered in the driver core.
The kernel would panic when accessing this driver struct.
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Merge "Renesas ARM Based SoC Fixes for v3.19" from Simon Horman:
Renesas ARM Based SoC Fixes for v3.19
This pull request is based on the last round of SoC updates for v3.19,
Fourth Round of Renesas ARM Based SoC Updates for v3.19, tagged as
renesas-soc3-for-v3.19, merged into your next/soc branch and included in
v3.19-rc1.
- ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
Set .control_parent for all irqpin instances for sh73a0 SoC when booting
using legacy C.
- ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
This fixes a long standing problem which has been present since
the sh73a0 SoC started using the INTC External IRQ pin driver.
The patch that introduced the problem is 341eb5465f67437a ("ARM:
shmobile: INTC External IRQ pin driver on sh73a0") which was included
in v3.10.
* tag 'renesas-soc-fixes-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
Many Exynos devices have a display panel. Most of them just have
a simple panel while others have more complex configurations that
requires an embedded DisplayPort (eDP) to LVDS bridges.
This patch enables the following features to be built in the kernel
image to support both setups:
- Direct Rendering Manager (DRM)
- DRM bridge registration and lookup framework
- Parade ps8622/ps8625 eDP/LVDS bridge
- NXP ptn3460 eDP/LVDS bridge
- Exynos Fully Interactive Mobile Display controller (FIMD)
- Panel registration and lookup framework
- Simple panels
- Backlight & LCD device support
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, but also two PMU driver fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools powerpc: Use dwfl_report_elf() instead of offline.
perf tools: Fix segfault for symbol annotation on TUI
perf test: Fix dwarf unwind using libunwind.
perf tools: Avoid build splat for syscall numbers with uclibc
perf tools: Elide strlcpy warning with uclibc
perf tools: Fix statfs.f_type data type mismatch build error with uclibc
tools: Remove bitops/hweight usage of bits in tools/perf
perf machine: Fix __machine__findnew_thread() error path
perf tools: Fix building error in x86_64 when dwarf unwind is on
perf probe: Propagate error code when write(2) failed
perf/x86/intel: Fix bug for "cycles:p" and "cycles:pp" on SLM
perf/rapl: Fix sysfs_show() initialization for RAPL PMU
In case of PCI driver we will get a warning:
dw_dmac_pci 0000:00:18.0: Unbalanced pm_runtime_enable!
dw_dmac_pci 0000:00:18.0: DesignWare DMA Controller, 8 channels
This happens due to pm_runtime_enable() call from the driver when PM runtime is
enabled by core.
This patch moves that call to the platform driver where it might make sense.
Fixes: bb32baf76e56 (dmaengine: dw: enable runtime PM)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Lockdep reported a possible deadlock between the cpuclk lock and for example
the i2c driver.
CPU0 CPU1
---- ----
lock(clk_lock);
local_irq_disable();
lock(&(&i2c->lock)->rlock);
lock(clk_lock);
<Interrupt>
lock(&(&i2c->lock)->rlock);
*** DEADLOCK ***
The generic clock-types of the core ccf already use spin_lock_irqsave when
touching clock registers, so do the same for the cpuclk.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
[mturquette@linaro.org: removed initialization of "flags"]
The arndale-octa board was giving "imprecise external aborts" during
boot-up with MCPM enabled. CCI enablement of the boot cluster was found
to be the cause of these aborts (possibly because the secure f/w was not
allowing it). Hence, disable CCI for the arndale-octa board.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
The sh73a0 INTC can't mask interrupts properly most likely due to a
hardware bug. Set the .control_parent flag to delegate masking to the
parent interrupt controller, like was already done for irqpin1.
Without this, accessing the three-axis digital accelerometer ADXL345
on kzm9g through /dev/input/event1 causes an interrupt storm, which
requires a power-cycle to recover from.
This was inspired by a patch for arch/arm/boot/dts/sh73a0.dtsi from
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: 341eb5465f67437a ("ARM: shmobile: INTC External IRQ pin driver on sh73a0")
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
DP PHY now require pmu-system-controller to handle PMU register
to control PHY's power isolation. Adding the same to dp-phy
node.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Avoid overflow possibility.
[ The overflow is purely theoretical, since this is used for memory
ranges that aren't even close to using the full 64 bits, but this is
the right thing to do regardless. - Linus ]
Signed-off-by: Louis Langholtz <lou_langholtz@me.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Peter Anvin <hpa@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
- Fix segfault when using both the map symtab viewer and annotation
in the TUI (Namhyung Kim).
- uClibc build fixes (Alexey Brodkin, Vineet Gupta).
- bitops/hweight were moved from tools/perf/ too tools/include, move
some leftovers (Arnaldo Carvalho de Melo)
- Fix dwarf unwind x86_64 build error (Namhyung Kim)
- Fix __machine__findnew_thread() error path (Namhyung Kim)
- Propagate error code when write(2) failed in 'perf probe' (Namhyung Kim)
- Use dwfl_report_elf() instead of offline in powerpc bits to
properly handle non prelinked DSOs (Sukadev Bhattiprolu).
- Fix dwarf unwind using libunwind in 'perf test' (Wang Nan)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The headers were listed as include/linux/dma* which is wrong as we have
other files in include/linux/dma* which have nothing to do with dmaengine so
update it to include/linux/dmaengine.h
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Commit e05fe29248 (qla2xxx: Honor FCP_RSP retry delay timer field.)
causes systems to busy-wait for about 3 minutes after boot prior to
detecting SAN disks.
During this wait period one kworker is running full-time
(though /proc/<pid>/stack has no useful data). Another kworker is
waiting for IO to complete during that whole time period.
Looking at drivers/scsi/qla2xxx/qla_os.c, fcport->retry_delay_timestamp
has a special value of 0 though that 0 value forces system to wait when
jiffies is very large value (e.g. 4294952605 - "negative" value when
signed on 32bit systems).
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The "smemc" clock is removed on BG2Q SoCs. In fact, bit19 of clkenable
register is for nfc. Current code use bit19 for non-exist "smemc"
incorrectly, this prevents eMMC from working due to the sdhci's
"core" clk is still gated.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: Michael Turquette <mturquette@linaro.org>
The arm-cci driver completes the probe sequence even if the cci node is
marked as disabled. Add a check in the driver to honour the cci status
in the device tree.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq
domain."), armadillo-legacy hangs during boot with:
sh-tmu.0: ch0: used for clock events
sh-tmu.0: ch0: used for periodic clock events
sh-tmu.0: ch0: failed to request irq 230
sh-tmu.0: ch1: used as clock source
sh-cmt-48.1: ch0: failed to request irq 90
sh-cmt-48.1: ch0: registration failed
earlytimer: unable to probe sh-cmt-48 early.
Calibrating delay loop...
This happens because the IRQ numbers of the GIC are now virtual, and no
longer match the hardcoded hardware IRQ numbers in the platform board
code.
To fix this, instantiate the GIC from platform board code when compiling
a legacy kernel, like is done on sh73a0 for kzm9g-legacy.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull char/misc driver fixes from Greg KH:
"Here are three small driver fixes for reported issues for 3.19-rc5.
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mcb: mcb-pci: Only remap the 1st 0x200 bytes of BAR 0
mei: add ABI documentation for fw_status exported through sysfs
mei: clean reset bit before reset
cycles:p and cycles:pp do not work on SLM since commit:
86a04461a99f ("perf/x86: Revamp PEBS event selection")
UOPS_RETIRED.ALL is not a PEBS capable event, so it should not be used
to count cycle number.
Actually SLM calls intel_pebs_aliases_core2() which uses INST_RETIRED.ANY_P
to count the number of cycles. It's a PEBS capable event. But inv and
cmask must be set to count cycles.
Considering SLM allows all events as PEBS with no flags, only
INST_RETIRED.ANY_P, inv=1, cmask=16 needs to handled specially.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1421084541-31639-1-git-send-email-kan.liang@intel.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
dwfl_report_offline() works only when libraries are prelinked.
Replace dwfl_report_offline() with dwfl_report_elf() so we correctly
extract debug info even from libraries that are not prelinked.
Reported-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: http://lkml.kernel.org/r/20150114221045.GA17703@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull UML fixes from Richard Weinberger:
"Two fixes for UML regressions. Nothing exciting"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
x86, um: actually mark system call tables readonly
um: Skip futex_atomic_cmpxchg_inatomic() test
All slow clk users are not properly claiming it (get + prepare + enable)
before using it.
If all users properly claiming this clock release it, the clock is
disabled, but faulty users still depends on it, and the system hangs.
This fix prevents the slow clock from being disabled, and should solve the
hanging issue, but offending drivers should be patched to properly claim
this clock.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Bo Shen <voice.shen@atmel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Merge "at91: fixes for 3.19 #1 (ter)" from Nicolas Ferre:
First fixes batch for AT91 on 3.19:
- fix some DT entries
- correct clock entry for the at91sam9263 LCD
- add a phy_fixup for Eth1 on sama5d4
* tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree
ARM: at91/dt: sam9263: Add missing clocks to lcdc node
ARM: at91: sama5d3: dt: correct the sound route
ARM: at91/dt: sama5d4: fix the timer reg length
Signed-off-by: Olof Johansson <olof@lixom.net>
Add serial port debug macros for the SCIF(A) serial ports.
This includes all supported shmobile SoCs, except for EMEV2.
The configuration logic (both Kconfig and #ifdef) is more complicated than
one would expect, for several reasons:
1. Not all SoCs have the same serial devices, and they're not always
at the same addresses.
2. There are two different types: SCIF and SCIFA. Fortunately they can
easily be distinguished by physical address.
3. Not all boards use the same serial port for the console.
The defaults correspond to the boards that are supported in
mainline. If you want to use a different serial port, just change
the value of CONFIG_DEBUG_UART_PHYS, and the rest will auto-adapt.
4. debug_ll_io_init() maps the SCIF(A) registers to a fixed virtual
address. 0xfdxxxxxx was chosen, as it should lie below VMALLOC_END
= 0xff000000, and must not conflict with the 2 MiB reserved region
at PCI_IO_VIRT_BASE = 0xfee00000.
- On SoCs not using the legacy machine_desc.map_io(),
debug_ll_io_init() is called by the ARM core code.
- On SoCs using the legacy machine_desc.map_io(),
debug_ll_io_init() must be called explicitly. Calls are added
for r8a7740, r8a7779, sh7372, and sh73a0.
This was derived from the r8a7790 version by Laurent Pinchart.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger:
"kernel: Provide READ_ONCE and ASSIGN_ONCE
As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com
ACCESS_ONCE might fail with specific compilers for non-scalar
accesses.
Here is a set of patches to tackle that problem.
The first patch introduce READ_ONCE and ASSIGN_ONCE. If the data
structure is larger than the machine word size memcpy is used and a
warning is emitted. The next patches fix up several in-tree users of
ACCESS_ONCE on non-scalar types.
This does not yet contain a patch that forces ACCESS_ONCE to work only
on scalar types. This is targetted for the next merge window as Linux
next already contains new offenders regarding ACCESS_ONCE vs.
non-scalar types"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux:
s390/kvm: REPLACE barrier fixup with READ_ONCE
arm/spinlock: Replace ACCESS_ONCE with READ_ONCE
arm64/spinlock: Replace ACCESS_ONCE READ_ONCE
mips/gup: Replace ACCESS_ONCE with READ_ONCE
x86/gup: Replace ACCESS_ONCE with READ_ONCE
x86/spinlock: Replace ACCESS_ONCE with READ_ONCE
mm: replace ACCESS_ONCE with READ_ONCE or barriers
kernel: Provide READ_ONCE and ASSIGN_ONCE
Pull driver core fix from Greg KH:
"Here is one kernfs fix for a reported issue for 3.19-rc5.
It has been in linux-next for a while"
* tag 'driver-core-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kernfs: Fix kernfs_name_compare
Currently it is not possible to have a kernel with built-in MCB attached
devices. This results out of the fact that mcb-pci requests PCI BAR 0, then
parses the chameleon table and calls the driver's probe function before
releasing BAR 0 again. When building the kernel with modules this is not a
problem (and therefore it wasn't detected by my tests yet).
A solution is to only remap the 1st 0x200 bytes of a Chameleon PCI device.
0x200 bytes is the maximum size of a Chameleon v2 Table.
Also this patch stops disabling the PCI device on successful registration of MCB
devices.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes a problem with the initialization of the
sysfs_show() routine for the RAPL PMU.
The current code was wrongly relying on the EVENT_ATTR_STR()
macro which uses the events_sysfs_show() function in the x86
PMU code. That function itself was relying on the x86_pmu data
structure. Yet RAPL and the core PMU (x86_pmu) have nothing to
do with each other. They should therefore not interact with
each other.
The x86_pmu structure is initialized at boot time based on
the host CPU model. When the host CPU is not supported, the
x86_pmu remains uninitialized and some of the callbacks it
contains are NULL.
The false dependency with x86_pmu could potentially cause crashes
in case the x86_pmu is not initialized while the RAPL PMU is. This
may, for instance, be the case in virtualized environments.
This patch fixes the problem by using a private sysfs_show()
routine for exporting the RAPL PMU events.
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150113225953.GA21525@thinkpad
Cc: vincent.weaver@maine.edu
Cc: jolsa@redhat.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Currently the symbol structure is allocated with symbol_conf.priv_size
to carry sideband information like annotation, map browser on TUI and
sort-by-name tree node. So retrieving these information from symbol
needs to care about the details of such placement.
However the annotation code just assumes that the symbol is placed after
the struct annotation. But actually there's other info between them.
So accessing those struct will lead to an undefined behavior (usually a
crash) after they write their info to the same location.
To reproduce the problem, please follow the steps below:
1. run perf report (TUI of course) with -v option
2. open map browser (by pressing right arrow key for any entry)
3. search any function (by pressing '/' key and input whatever..)
4. return to the hist browser (by pressing 'q' or left arrow key)
5. open annotation window for the same entry (by pressing 'a' key)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1421234288-22758-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit 9fc2105aeaaf ("ARM: 7830/1: delay: don't bother reporting
bogomips in /proc/cpuinfo") breaks audio in python, and probably
elsewhere, with message
FATAL: cannot locate cpu MHz in /proc/cpuinfo
I'm not the first one to hit it, see for example
https://theredblacktree.wordpress.com/2014/08/10/fatal-cannot-locate-cpu-mhz-in-proccpuinfo/
https://devtalk.nvidia.com/default/topic/765800/workaround-for-fatal-cannot-locate-cpu-mhz-in-proc-cpuinf/?offset=1
Reading original changelog, I have to say "Stop breaking working setups.
You know who you are!".
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit a074335a370e ("x86, um: Mark system call tables readonly") was
supposed to mark the sys_call_table in UML as RO by adding the const,
but it doesn't have the desired effect as it's nevertheless being placed
into the data section since __cacheline_aligned enforces sys_call_table
being placed into .data..cacheline_aligned instead. We need to use
the ____cacheline_aligned version instead to fix this issue.
Before:
$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
U sys_writev
0000000000000000 D sys_call_table
0000000000000000 D syscall_table_size
After:
$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
U sys_writev
0000000000000000 R sys_call_table
0000000000000000 D syscall_table_size
Fixes: a074335a370e ("x86, um: Mark system call tables readonly")
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
- two currently unused clocks that need to stay enabled
- fix the lock bit locations of the rk3066 plls
- fix rk3288 core divider values to the ones actually
specified by the soc vendor
rk3288 SoCs have a function to automatically switch between jtag/sdmmc pinmux
settings depending on the card state. This collides with a lot of assumptions.
It only works when using the internal card-detect mechanism and breaks
horribly when using either the normal card-detect via the slot-gpio function
or via any other pin. Also there is of course no link between the mmc and jtag
on the software-side, so the jtag clocks may very well be disabled when the
card is ejected and the soc switches back to the jtag pinmux.
Leaving the switching function enabled did result in mmc timeouts and rcu
stalls thus hanging the system on 3.19-rc1. Therefore disable it in all cases,
as we expect the devicetree to explicitly select either mmc or jtag pinmuxes
anyway.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Appearance: On some SAMA5D4EK boards, after power up, the Eth1 doesn't work.
Reason: The PIOE2 pin is connected to the NAND_Tree# of KSZ8081,
But it outputs LOW during the reset period, which cause the NAND_Tree# enabled.
Add phy_fixup() to disable NAND_Tree by overriding the Operation
Mode Strap Override register(i.e. Register 16h) to clear the NAND_Tree bit.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
In a combined ARMv6/v7 kernel, the setup-rcar-gen2.c cannot
currently be compiled correctly because it uses the isb
instruction that is not available on ARMv6. Adding the
-march=armv7-a flag lets the compiler know that it is safe
to build this file for ARMv7.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull clk framework updates from Mike Turquette:
"This is much later than usual due to several last minute bugs that had
to be addressed. As usual the majority of changes are new drivers and
modifications to existing drivers. The core recieved many fixes along
with the groundwork for several large changes coming in the future
which will better parition clock providers from clock consumers"
* tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
ARM: OMAP3: clock: fix boot breakage in legacy mode
ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
clk: Really fix deadlock with mmap_sem
clk: mmp: fix sparse non static symbol warning
clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
clk: change clk_debugfs_add_file to take a struct clk_hw
clk: Don't expose __clk_get_accuracy
clk: Don't try to use a struct clk* after it could have been freed
clk: Remove unused function __clk_get_prepare_count
clk: samsung: Fix double add of syscore ops after driver rebind
clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
clk: samsung: remove unnecessary inclusion of header files from clk.h
clk: samsung: remove unnecessary CONFIG_OF from clk.c
clk: samsung: Spelling s/bwtween/between/
clk: rockchip: Add support for the mmc clock phases using the framework
clk: rockchip: add bindings for the mmc clocks
clk: rockchip: rk3288 export i2s0_clkout for use in DT
clk: rockchip: use clock ID for DMC (memory controller) on rk3288
...
ACCESS_ONCE does not work reliably on non-scalar types. For
example gcc 4.6 and 4.7 might remove the volatile tag for such
accesses during the SRA (scalar replacement of aggregates) step
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145)
Commit 1365039d0cb3 ("KVM: s390: Fix ipte locking") replace
ACCESS_ONCE with barriers. Lets use READ_ONCE instead.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Pull tty/serial driver fixes from Greg KH:
"Here are some tty and serial driver fixes for 3.19-rc5 that resolve
some reported issues, and add a new device id to the 8250 serial port
driver.
All have been in linux-next with no reported problems"
* tag 'tty-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: samsung: Add the support for Exynos5433 SoC
Revert "tty: Fix pty master poll() after slave closes v2"
tty: Prevent hw state corruption in exclusive mode reopen
tty: Add support for the WCH384 4S multi-IO card
serial: fix parisc boot hang
Returning a difference from a comparison functions is usually wrong
(see acbbe6fbb240 "kcmp: fix standard comparison bug" for the long
story). Here there is the additional twist that if the void pointers
ns and kn->ns happen to differ by a multiple of 2^32,
kernfs_name_compare returns 0, falsely reporting a match to the
caller.
Technically 'hash - kn->hash' is ok since the hashes are restricted to
31 bits, but it's better to avoid that subtlety.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull thermal fixes from Zhang Rui:
"Specifics:
- bogus type qualifier fix in OF thermal code.
- Minor fixes on imx and rcar thermal drivers.
- Update TI SoC thermal maintainer entry.
- Updated documentation of OF cpufreq cooling register"
* 'thermal-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: rcar: Spelling/grammar: s/drier use .../driver uses ...s/
thermal: rcar: change type of ctemp in rcar_thermal_update_temp()
thermal: rcar: fix ENR register value
Documentation: thermal: document of_cpufreq_cooling_register()
Thermal: imx: add clk disable/enable for suspend/resume
MAINTAINERS: update ti-soc-thermal status
MAINTAINERS: Add linux-omap to list of reviewers for TI Thermal
thermal: of: Remove bogus type qualifier for of_thermal_get_trip_points()
Perf tool fails to unwind user stack if the event raises in a shared
object. This patch improves tests/dwarf-unwind.c to demonstrate the
problem by utilizing commonly used glibc function "bsearch". If perf is
not statically linked, the testcase will try to unwind a mixed call
trace.
By debugging libunwind I found that there is a bug in unwind-libunwind:
it always passes 0 as segbase to libunwind, cause libunwind unable to
locate debug_frame entry fir first level ip address (I add some more
debugging output into libunwind to make things clear):
>_Uarm_dwarf_find_debug_frame: start_ip = 10be98, end_ip = 10c2a4
>_Uarm_dwarf_find_debug_frame: found debug_frame table `/lib/libc-2.18.so': segbase=0x0, len=7, gp=0x0, table_data=0x449388
>_Uarm_dwarf_search_unwind_table: call lookup:ip = b6cd3bcc, segbase = 0, rel_ip = b6cd3bcc
>lookup: e->start_ip_offset = bcf18 (rel_ip = b6cd3bcc)
>lookup: e->start_ip_offset = 6d314 (rel_ip = b6cd3bcc)
>lookup: e->start_ip_offset = 33d0c (rel_ip = b6cd3bcc)
...
>lookup: e->start_ip_offset = 15d0c (rel_ip = b6cd3bcc)
>lookup: e->start_ip_offset = 15c40 (rel_ip = b6cd3bcc)
>_Uarm_dwarf_search_unwind_table: IP b6cd3bcc inside range b6c12000-b6d4c000, but no explicit unwind info found
>put_rs_cache: unmasking signals/interrupts and releasing lock
>_Uarm_dwarf_step: returning -10
>_Uarm_step: dwarf_step()=-10
This patch passes map->start as segbase to dwarf_find_debug_frame(), so
di will be initialized correctly.
In addition, dso and executable are different when setting segbase. This
patch first check whether the elf is executable, and pass segbase only
for shared object.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1421203007-75799-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull SCSI fixes from James Bottomley:
"This is a set of three fixes: one to correct an abort path thinko
causing failures (and a panic) in USB on device misbehaviour, One to
fix an out of order issue in the fnic driver and one to match discard
expectations to qemu which otherwise cause Linux to behave badly as a
guest"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
SCSI: fix regression in scsi_send_eh_cmnd()
fnic: IOMMU Fault occurs when IO and abort IO is out of order
sd: tweak discard heuristics to work around QEMU SCSI issue
futex_atomic_cmpxchg_inatomic() does not work on UML because
it triggers a copy_from_user() in kernel context.
On UML copy_from_user() can only be used if the kernel was called
by a real user space process such that UML can use ptrace()
to fetch the value.
Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Daniel Walter <d.walter@0x90.at>
Commit 0e5bdb3f9fa5 (clk: rockchip: switch to using the new cpuclk type
for armclk) didn't take into account that the divider used on rk3288
are of the (n+1) type.
The rk3066 and rk3188 socs use more complex divider types making it
necessary for the list-elements to be the real register-values to write.
Therefore reduce divider values in the table accordingly so that they
really are the values that should be written to the registers and match
the dividers actually specified for the rk3288.
Reported-by: Sonny Rao <sonnyrao@chromium.org>
Fixes: 0e5bdb3f9fa5 ("clk: rockchip: switch to using the new cpuclk type for armclk")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Cc: stable@vger.kernel.org
Merge "ARM: berlin: Fixes for v3.19 (round 1)" from Sebastian Hesselbarth:
Marvell Berlin fixes for v3.19 round 1:
- SDHCI DT fixes for BG2Q and BG2Q reference board
- BG2Q SM GPIO DT node relocation
* tag 'berlin-fixes-for-3.19-1' of git://git.infradead.org/users/hesselba/linux-berlin:
ARM: dts: berlin: correct BG2Q's SM GPIO location.
ARM: dts: berlin: add broken-cd and set bus width for eMMC in Marvell DMP DT
ARM: dts: berlin: fix io clk and add missing core clk for BG2Q sdhci2 host
Signed-off-by: Olof Johansson <olof@lixom.net>
atmel_lcdfb needs also uses hclk clock, but AT91SAM9263 doesn't have that
specific clock, so use lcd_clk twice. The same was done in
arch/arm/mach-at91/at91sam9263.c
Signed-off-by: Alexander Stein <alexanders83@web.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Port the sh73a0 restart handling from the kzm9g-legacy board code to the
generic sh73a0 code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull more i2c updates from Wolfram Sang:
"Included are two bugfixes needing some bigger refactoring (sh_mobile:
deferred probe with DMA, mv64xxx: fix offload support) and one
deprecated driver removal I thought would go in via ppc but I
misunderstood. It has a proper ack from BenH"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: sh_mobile: fix uninitialized var when debug is enabled
macintosh: therm_pm72: delete deprecated driver
i2c: sh_mobile: I2C_SH_MOBILE should depend on HAS_DMA
i2c: sh_mobile: rework deferred probing
i2c: sh_mobile: refactor DMA setup
i2c: mv64xxx: rework offload support to fix several problems
i2c: mv64xxx: use BIT() macro for register value definitions
Pull ARM SoC fixes from Olof Johansson:
"We've been sitting on our fixes branch for a while, so this batch is
unfortunately on the large side.
A lot of these are tweaks and fixes to device trees, fixing various
bugs around clocks, reg ranges, etc. There's also a few defconfig
updates (which are on the late side, no more of those).
All in all the diffstat is bigger than ideal at this time, but nothing
in here seems particularly risky"
* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
reset: sunxi: fix spinlock initialization
ARM: dts: disable CCI on exynos5420 based arndale-octa
drivers: bus: check cci device tree node status
ARM: rockchip: disable jtag/sdmmc autoswitching on rk3288
ARM: nomadik: fix up leftover device tree pins
ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree
ARM: at91/dt: sam9263: Add missing clocks to lcdc node
ARM: at91: sama5d3: dt: correct the sound route
ARM: at91/dt: sama5d4: fix the timer reg length
ARM: exynos_defconfig: Enable LM90 driver
ARM: exynos_defconfig: Enable options for display panel support
arm: dts: Use pmu_system_controller phandle for dp phy
ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
ARM: dts: berlin: correct BG2Q's SM GPIO location.
ARM: dts: berlin: add broken-cd and set bus width for eMMC in Marvell DMP DT
ARM: dts: berlin: fix io clk and add missing core clk for BG2Q sdhci2 host
ARM: dts: Revert disabling of smc91x for n900
ARM: dts: imx51-babbage: Fix ULPI PHY reset modelling
ARM: dts: dra7-evm: fix qspi device tree partition size
ARM: omap2plus_defconfig: use CONFIG_CPUFREQ_DT
...
Pull clock driver fixes from Mike Turquette:
"Small number of fixes for clock drivers and a single null pointer
dereference fix in the framework core code.
The driver fixes vary from fixing section mismatch warnings to
preventing machines from hanging (and preventing developers from
crying)"
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
clk: fix possible null pointer dereference
Revert "clk: ppc-corenet: Fix Section mismatch warning"
clk: rockchip: fix deadlock possibility in cpuclk
clk: berlin: bg2q: remove non-exist "smemc" gate clock
clk: at91: keep slow clk enabled to prevent system hang
clk: rockchip: fix rk3288 cpuclk core dividers
clk: rockchip: fix rk3066 pll lock bit location
clk: rockchip: Fix clock gate for rk3188 hclk_emem_peri
clk: rockchip: add CLK_IGNORE_UNUSED flag to fix rk3066/rk3188 USB Host
Merge "Samsung fixes for v3.19" from Kukjin Kim:
Samsung fixes for v3.19
- exynos_defconfig: enable LM90 driver and display panel support
- HWMON
- SENSORS_LM90
- Direct Rendering Manager (DRM)
- DRM bridge registration and lookup framework
- Parade ps8622/ps8625 eDP/LVDS bridge
- NXP ptn3460 eDP/LVDS bridge
- Exynos Fully Interactive Mobile Display controller (FIMD)
- Panel registration and lookup framework
- Simple panels
- Backlight & LCD device support
- use pmu_system_controller phandle for dp phy
: DP PHY requires pmu_system_controller to handle PMU reg. now
* tag 'samsung-fixes-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: exynos_defconfig: Enable LM90 driver
ARM: exynos_defconfig: Enable options for display panel support
arm: dts: Use pmu_system_controller phandle for dp phy
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull SCSI fixes from James Bottomley:
"This is one fix for a Multiqueue sleeping in invalid context problem
and a MAINTAINER file update for Qlogic"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ->queue_rq can't sleep
MAINTAINERS: Update maintainer list for qla4xxx
The commit 646cafc6 (clk: Change clk_ops->determine_rate to
return a clk_hw as the best parent) opens a possibility for
null pointer dereference, fix this.
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Call spin_lock_init() before the spinlocks are used, both in early init
and probe functions preventing a lockdep splat.
I have been observing lockdep complaining [1] during boot on my a80 optimus [2]
when CONFIG_PROVE_LOCKING has been enabled. This patch resolves the splat,
and has been tested on a few other sunxi platforms without issue.
[1] http://storage.kernelci.org/next/next-20150107/arm-multi_v7_defconfig+CONFIG_PROVE_LOCKING=y/lab-tbaker/boot-sun9i-a80-optimus.html
[2] http://kernelci.org/boot/?a80-optimus
Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Cc: <stable@vger.kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull dmaengine fixes from Vinod Koul:
"Two patches, the first by Andy to fix dw dmac runtime pm and second
one by me to fix the dmaengine headers in MAINTAINERS"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: dw: balance PM runtime calls
MAINTAINERS: dmaengine: fix the header file for dmaengine
The blk-mq ->queue_rq method is always called from process context,
but might have preemption disabled. This means we still always
have to use GFP_ATOMIC for memory allocations, and thus need to
revert part of commit 3c356bde1 ("scsi: stop passing a gfp_mask
argument down the command setup path").
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Tested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
This reverts commit da788acb28386aa896224e784954bb73c99ff26c.
That commit tried to fix the section mismatch warning by moving the
ppc_corenet_clk_driver struct to init section. This is definitely wrong
because the kernel would free the memories occupied by this struct
after boot while this driver is still registered in the driver core.
The kernel would panic when accessing this driver struct.
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Merge "Renesas ARM Based SoC Fixes for v3.19" from Simon Horman:
Renesas ARM Based SoC Fixes for v3.19
This pull request is based on the last round of SoC updates for v3.19,
Fourth Round of Renesas ARM Based SoC Updates for v3.19, tagged as
renesas-soc3-for-v3.19, merged into your next/soc branch and included in
v3.19-rc1.
- ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
Set .control_parent for all irqpin instances for sh73a0 SoC when booting
using legacy C.
- ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
This fixes a long standing problem which has been present since
the sh73a0 SoC started using the INTC External IRQ pin driver.
The patch that introduced the problem is 341eb5465f67437a ("ARM:
shmobile: INTC External IRQ pin driver on sh73a0") which was included
in v3.10.
* tag 'renesas-soc-fixes-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds
Many Exynos devices have a display panel. Most of them just have
a simple panel while others have more complex configurations that
requires an embedded DisplayPort (eDP) to LVDS bridges.
This patch enables the following features to be built in the kernel
image to support both setups:
- Direct Rendering Manager (DRM)
- DRM bridge registration and lookup framework
- Parade ps8622/ps8625 eDP/LVDS bridge
- NXP ptn3460 eDP/LVDS bridge
- Exynos Fully Interactive Mobile Display controller (FIMD)
- Panel registration and lookup framework
- Simple panels
- Backlight & LCD device support
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, but also two PMU driver fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools powerpc: Use dwfl_report_elf() instead of offline.
perf tools: Fix segfault for symbol annotation on TUI
perf test: Fix dwarf unwind using libunwind.
perf tools: Avoid build splat for syscall numbers with uclibc
perf tools: Elide strlcpy warning with uclibc
perf tools: Fix statfs.f_type data type mismatch build error with uclibc
tools: Remove bitops/hweight usage of bits in tools/perf
perf machine: Fix __machine__findnew_thread() error path
perf tools: Fix building error in x86_64 when dwarf unwind is on
perf probe: Propagate error code when write(2) failed
perf/x86/intel: Fix bug for "cycles:p" and "cycles:pp" on SLM
perf/rapl: Fix sysfs_show() initialization for RAPL PMU
In case of PCI driver we will get a warning:
dw_dmac_pci 0000:00:18.0: Unbalanced pm_runtime_enable!
dw_dmac_pci 0000:00:18.0: DesignWare DMA Controller, 8 channels
This happens due to pm_runtime_enable() call from the driver when PM runtime is
enabled by core.
This patch moves that call to the platform driver where it might make sense.
Fixes: bb32baf76e56 (dmaengine: dw: enable runtime PM)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Lockdep reported a possible deadlock between the cpuclk lock and for example
the i2c driver.
CPU0 CPU1
---- ----
lock(clk_lock);
local_irq_disable();
lock(&(&i2c->lock)->rlock);
lock(clk_lock);
<Interrupt>
lock(&(&i2c->lock)->rlock);
*** DEADLOCK ***
The generic clock-types of the core ccf already use spin_lock_irqsave when
touching clock registers, so do the same for the cpuclk.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
[mturquette@linaro.org: removed initialization of "flags"]
The arndale-octa board was giving "imprecise external aborts" during
boot-up with MCPM enabled. CCI enablement of the boot cluster was found
to be the cause of these aborts (possibly because the secure f/w was not
allowing it). Hence, disable CCI for the arndale-octa board.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
The sh73a0 INTC can't mask interrupts properly most likely due to a
hardware bug. Set the .control_parent flag to delegate masking to the
parent interrupt controller, like was already done for irqpin1.
Without this, accessing the three-axis digital accelerometer ADXL345
on kzm9g through /dev/input/event1 causes an interrupt storm, which
requires a power-cycle to recover from.
This was inspired by a patch for arch/arm/boot/dts/sh73a0.dtsi from
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: 341eb5465f67437a ("ARM: shmobile: INTC External IRQ pin driver on sh73a0")
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
DP PHY now require pmu-system-controller to handle PMU register
to control PHY's power isolation. Adding the same to dp-phy
node.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Avoid overflow possibility.
[ The overflow is purely theoretical, since this is used for memory
ranges that aren't even close to using the full 64 bits, but this is
the right thing to do regardless. - Linus ]
Signed-off-by: Louis Langholtz <lou_langholtz@me.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Peter Anvin <hpa@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
- Fix segfault when using both the map symtab viewer and annotation
in the TUI (Namhyung Kim).
- uClibc build fixes (Alexey Brodkin, Vineet Gupta).
- bitops/hweight were moved from tools/perf/ too tools/include, move
some leftovers (Arnaldo Carvalho de Melo)
- Fix dwarf unwind x86_64 build error (Namhyung Kim)
- Fix __machine__findnew_thread() error path (Namhyung Kim)
- Propagate error code when write(2) failed in 'perf probe' (Namhyung Kim)
- Use dwfl_report_elf() instead of offline in powerpc bits to
properly handle non prelinked DSOs (Sukadev Bhattiprolu).
- Fix dwarf unwind using libunwind in 'perf test' (Wang Nan)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Commit e05fe29248 (qla2xxx: Honor FCP_RSP retry delay timer field.)
causes systems to busy-wait for about 3 minutes after boot prior to
detecting SAN disks.
During this wait period one kworker is running full-time
(though /proc/<pid>/stack has no useful data). Another kworker is
waiting for IO to complete during that whole time period.
Looking at drivers/scsi/qla2xxx/qla_os.c, fcport->retry_delay_timestamp
has a special value of 0 though that 0 value forces system to wait when
jiffies is very large value (e.g. 4294952605 - "negative" value when
signed on 32bit systems).
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The "smemc" clock is removed on BG2Q SoCs. In fact, bit19 of clkenable
register is for nfc. Current code use bit19 for non-exist "smemc"
incorrectly, this prevents eMMC from working due to the sdhci's
"core" clk is still gated.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: Michael Turquette <mturquette@linaro.org>
The arm-cci driver completes the probe sequence even if the cci node is
marked as disabled. Add a check in the driver to honour the cci status
in the device tree.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq
domain."), armadillo-legacy hangs during boot with:
sh-tmu.0: ch0: used for clock events
sh-tmu.0: ch0: used for periodic clock events
sh-tmu.0: ch0: failed to request irq 230
sh-tmu.0: ch1: used as clock source
sh-cmt-48.1: ch0: failed to request irq 90
sh-cmt-48.1: ch0: registration failed
earlytimer: unable to probe sh-cmt-48 early.
Calibrating delay loop...
This happens because the IRQ numbers of the GIC are now virtual, and no
longer match the hardcoded hardware IRQ numbers in the platform board
code.
To fix this, instantiate the GIC from platform board code when compiling
a legacy kernel, like is done on sh73a0 for kzm9g-legacy.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull char/misc driver fixes from Greg KH:
"Here are three small driver fixes for reported issues for 3.19-rc5.
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mcb: mcb-pci: Only remap the 1st 0x200 bytes of BAR 0
mei: add ABI documentation for fw_status exported through sysfs
mei: clean reset bit before reset
cycles:p and cycles:pp do not work on SLM since commit:
86a04461a99f ("perf/x86: Revamp PEBS event selection")
UOPS_RETIRED.ALL is not a PEBS capable event, so it should not be used
to count cycle number.
Actually SLM calls intel_pebs_aliases_core2() which uses INST_RETIRED.ANY_P
to count the number of cycles. It's a PEBS capable event. But inv and
cmask must be set to count cycles.
Considering SLM allows all events as PEBS with no flags, only
INST_RETIRED.ANY_P, inv=1, cmask=16 needs to handled specially.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1421084541-31639-1-git-send-email-kan.liang@intel.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
dwfl_report_offline() works only when libraries are prelinked.
Replace dwfl_report_offline() with dwfl_report_elf() so we correctly
extract debug info even from libraries that are not prelinked.
Reported-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: http://lkml.kernel.org/r/20150114221045.GA17703@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
All slow clk users are not properly claiming it (get + prepare + enable)
before using it.
If all users properly claiming this clock release it, the clock is
disabled, but faulty users still depends on it, and the system hangs.
This fix prevents the slow clock from being disabled, and should solve the
hanging issue, but offending drivers should be patched to properly claim
this clock.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Bo Shen <voice.shen@atmel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Merge "at91: fixes for 3.19 #1 (ter)" from Nicolas Ferre:
First fixes batch for AT91 on 3.19:
- fix some DT entries
- correct clock entry for the at91sam9263 LCD
- add a phy_fixup for Eth1 on sama5d4
* tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree
ARM: at91/dt: sam9263: Add missing clocks to lcdc node
ARM: at91: sama5d3: dt: correct the sound route
ARM: at91/dt: sama5d4: fix the timer reg length
Signed-off-by: Olof Johansson <olof@lixom.net>
Add serial port debug macros for the SCIF(A) serial ports.
This includes all supported shmobile SoCs, except for EMEV2.
The configuration logic (both Kconfig and #ifdef) is more complicated than
one would expect, for several reasons:
1. Not all SoCs have the same serial devices, and they're not always
at the same addresses.
2. There are two different types: SCIF and SCIFA. Fortunately they can
easily be distinguished by physical address.
3. Not all boards use the same serial port for the console.
The defaults correspond to the boards that are supported in
mainline. If you want to use a different serial port, just change
the value of CONFIG_DEBUG_UART_PHYS, and the rest will auto-adapt.
4. debug_ll_io_init() maps the SCIF(A) registers to a fixed virtual
address. 0xfdxxxxxx was chosen, as it should lie below VMALLOC_END
= 0xff000000, and must not conflict with the 2 MiB reserved region
at PCI_IO_VIRT_BASE = 0xfee00000.
- On SoCs not using the legacy machine_desc.map_io(),
debug_ll_io_init() is called by the ARM core code.
- On SoCs using the legacy machine_desc.map_io(),
debug_ll_io_init() must be called explicitly. Calls are added
for r8a7740, r8a7779, sh7372, and sh73a0.
This was derived from the r8a7790 version by Laurent Pinchart.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger:
"kernel: Provide READ_ONCE and ASSIGN_ONCE
As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com
ACCESS_ONCE might fail with specific compilers for non-scalar
accesses.
Here is a set of patches to tackle that problem.
The first patch introduce READ_ONCE and ASSIGN_ONCE. If the data
structure is larger than the machine word size memcpy is used and a
warning is emitted. The next patches fix up several in-tree users of
ACCESS_ONCE on non-scalar types.
This does not yet contain a patch that forces ACCESS_ONCE to work only
on scalar types. This is targetted for the next merge window as Linux
next already contains new offenders regarding ACCESS_ONCE vs.
non-scalar types"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux:
s390/kvm: REPLACE barrier fixup with READ_ONCE
arm/spinlock: Replace ACCESS_ONCE with READ_ONCE
arm64/spinlock: Replace ACCESS_ONCE READ_ONCE
mips/gup: Replace ACCESS_ONCE with READ_ONCE
x86/gup: Replace ACCESS_ONCE with READ_ONCE
x86/spinlock: Replace ACCESS_ONCE with READ_ONCE
mm: replace ACCESS_ONCE with READ_ONCE or barriers
kernel: Provide READ_ONCE and ASSIGN_ONCE
Pull driver core fix from Greg KH:
"Here is one kernfs fix for a reported issue for 3.19-rc5.
It has been in linux-next for a while"
* tag 'driver-core-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kernfs: Fix kernfs_name_compare
Currently it is not possible to have a kernel with built-in MCB attached
devices. This results out of the fact that mcb-pci requests PCI BAR 0, then
parses the chameleon table and calls the driver's probe function before
releasing BAR 0 again. When building the kernel with modules this is not a
problem (and therefore it wasn't detected by my tests yet).
A solution is to only remap the 1st 0x200 bytes of a Chameleon PCI device.
0x200 bytes is the maximum size of a Chameleon v2 Table.
Also this patch stops disabling the PCI device on successful registration of MCB
devices.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes a problem with the initialization of the
sysfs_show() routine for the RAPL PMU.
The current code was wrongly relying on the EVENT_ATTR_STR()
macro which uses the events_sysfs_show() function in the x86
PMU code. That function itself was relying on the x86_pmu data
structure. Yet RAPL and the core PMU (x86_pmu) have nothing to
do with each other. They should therefore not interact with
each other.
The x86_pmu structure is initialized at boot time based on
the host CPU model. When the host CPU is not supported, the
x86_pmu remains uninitialized and some of the callbacks it
contains are NULL.
The false dependency with x86_pmu could potentially cause crashes
in case the x86_pmu is not initialized while the RAPL PMU is. This
may, for instance, be the case in virtualized environments.
This patch fixes the problem by using a private sysfs_show()
routine for exporting the RAPL PMU events.
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150113225953.GA21525@thinkpad
Cc: vincent.weaver@maine.edu
Cc: jolsa@redhat.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Currently the symbol structure is allocated with symbol_conf.priv_size
to carry sideband information like annotation, map browser on TUI and
sort-by-name tree node. So retrieving these information from symbol
needs to care about the details of such placement.
However the annotation code just assumes that the symbol is placed after
the struct annotation. But actually there's other info between them.
So accessing those struct will lead to an undefined behavior (usually a
crash) after they write their info to the same location.
To reproduce the problem, please follow the steps below:
1. run perf report (TUI of course) with -v option
2. open map browser (by pressing right arrow key for any entry)
3. search any function (by pressing '/' key and input whatever..)
4. return to the hist browser (by pressing 'q' or left arrow key)
5. open annotation window for the same entry (by pressing 'a' key)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1421234288-22758-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit 9fc2105aeaaf ("ARM: 7830/1: delay: don't bother reporting
bogomips in /proc/cpuinfo") breaks audio in python, and probably
elsewhere, with message
FATAL: cannot locate cpu MHz in /proc/cpuinfo
I'm not the first one to hit it, see for example
https://theredblacktree.wordpress.com/2014/08/10/fatal-cannot-locate-cpu-mhz-in-proccpuinfo/
https://devtalk.nvidia.com/default/topic/765800/workaround-for-fatal-cannot-locate-cpu-mhz-in-proc-cpuinf/?offset=1
Reading original changelog, I have to say "Stop breaking working setups.
You know who you are!".
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit a074335a370e ("x86, um: Mark system call tables readonly") was
supposed to mark the sys_call_table in UML as RO by adding the const,
but it doesn't have the desired effect as it's nevertheless being placed
into the data section since __cacheline_aligned enforces sys_call_table
being placed into .data..cacheline_aligned instead. We need to use
the ____cacheline_aligned version instead to fix this issue.
Before:
$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
U sys_writev
0000000000000000 D sys_call_table
0000000000000000 D syscall_table_size
After:
$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
U sys_writev
0000000000000000 R sys_call_table
0000000000000000 D syscall_table_size
Fixes: a074335a370e ("x86, um: Mark system call tables readonly")
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
rk3288 SoCs have a function to automatically switch between jtag/sdmmc pinmux
settings depending on the card state. This collides with a lot of assumptions.
It only works when using the internal card-detect mechanism and breaks
horribly when using either the normal card-detect via the slot-gpio function
or via any other pin. Also there is of course no link between the mmc and jtag
on the software-side, so the jtag clocks may very well be disabled when the
card is ejected and the soc switches back to the jtag pinmux.
Leaving the switching function enabled did result in mmc timeouts and rcu
stalls thus hanging the system on 3.19-rc1. Therefore disable it in all cases,
as we expect the devicetree to explicitly select either mmc or jtag pinmuxes
anyway.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Appearance: On some SAMA5D4EK boards, after power up, the Eth1 doesn't work.
Reason: The PIOE2 pin is connected to the NAND_Tree# of KSZ8081,
But it outputs LOW during the reset period, which cause the NAND_Tree# enabled.
Add phy_fixup() to disable NAND_Tree by overriding the Operation
Mode Strap Override register(i.e. Register 16h) to clear the NAND_Tree bit.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
In a combined ARMv6/v7 kernel, the setup-rcar-gen2.c cannot
currently be compiled correctly because it uses the isb
instruction that is not available on ARMv6. Adding the
-march=armv7-a flag lets the compiler know that it is safe
to build this file for ARMv7.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull clk framework updates from Mike Turquette:
"This is much later than usual due to several last minute bugs that had
to be addressed. As usual the majority of changes are new drivers and
modifications to existing drivers. The core recieved many fixes along
with the groundwork for several large changes coming in the future
which will better parition clock providers from clock consumers"
* tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
ARM: OMAP3: clock: fix boot breakage in legacy mode
ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
clk: Really fix deadlock with mmap_sem
clk: mmp: fix sparse non static symbol warning
clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
clk: change clk_debugfs_add_file to take a struct clk_hw
clk: Don't expose __clk_get_accuracy
clk: Don't try to use a struct clk* after it could have been freed
clk: Remove unused function __clk_get_prepare_count
clk: samsung: Fix double add of syscore ops after driver rebind
clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
clk: samsung: remove unnecessary inclusion of header files from clk.h
clk: samsung: remove unnecessary CONFIG_OF from clk.c
clk: samsung: Spelling s/bwtween/between/
clk: rockchip: Add support for the mmc clock phases using the framework
clk: rockchip: add bindings for the mmc clocks
clk: rockchip: rk3288 export i2s0_clkout for use in DT
clk: rockchip: use clock ID for DMC (memory controller) on rk3288
...
ACCESS_ONCE does not work reliably on non-scalar types. For
example gcc 4.6 and 4.7 might remove the volatile tag for such
accesses during the SRA (scalar replacement of aggregates) step
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145)
Commit 1365039d0cb3 ("KVM: s390: Fix ipte locking") replace
ACCESS_ONCE with barriers. Lets use READ_ONCE instead.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Pull tty/serial driver fixes from Greg KH:
"Here are some tty and serial driver fixes for 3.19-rc5 that resolve
some reported issues, and add a new device id to the 8250 serial port
driver.
All have been in linux-next with no reported problems"
* tag 'tty-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: samsung: Add the support for Exynos5433 SoC
Revert "tty: Fix pty master poll() after slave closes v2"
tty: Prevent hw state corruption in exclusive mode reopen
tty: Add support for the WCH384 4S multi-IO card
serial: fix parisc boot hang
Returning a difference from a comparison functions is usually wrong
(see acbbe6fbb240 "kcmp: fix standard comparison bug" for the long
story). Here there is the additional twist that if the void pointers
ns and kn->ns happen to differ by a multiple of 2^32,
kernfs_name_compare returns 0, falsely reporting a match to the
caller.
Technically 'hash - kn->hash' is ok since the hashes are restricted to
31 bits, but it's better to avoid that subtlety.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull thermal fixes from Zhang Rui:
"Specifics:
- bogus type qualifier fix in OF thermal code.
- Minor fixes on imx and rcar thermal drivers.
- Update TI SoC thermal maintainer entry.
- Updated documentation of OF cpufreq cooling register"
* 'thermal-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: rcar: Spelling/grammar: s/drier use .../driver uses ...s/
thermal: rcar: change type of ctemp in rcar_thermal_update_temp()
thermal: rcar: fix ENR register value
Documentation: thermal: document of_cpufreq_cooling_register()
Thermal: imx: add clk disable/enable for suspend/resume
MAINTAINERS: update ti-soc-thermal status
MAINTAINERS: Add linux-omap to list of reviewers for TI Thermal
thermal: of: Remove bogus type qualifier for of_thermal_get_trip_points()
Perf tool fails to unwind user stack if the event raises in a shared
object. This patch improves tests/dwarf-unwind.c to demonstrate the
problem by utilizing commonly used glibc function "bsearch". If perf is
not statically linked, the testcase will try to unwind a mixed call
trace.
By debugging libunwind I found that there is a bug in unwind-libunwind:
it always passes 0 as segbase to libunwind, cause libunwind unable to
locate debug_frame entry fir first level ip address (I add some more
debugging output into libunwind to make things clear):
>_Uarm_dwarf_find_debug_frame: start_ip = 10be98, end_ip = 10c2a4
>_Uarm_dwarf_find_debug_frame: found debug_frame table `/lib/libc-2.18.so': segbase=0x0, len=7, gp=0x0, table_data=0x449388
>_Uarm_dwarf_search_unwind_table: call lookup:ip = b6cd3bcc, segbase = 0, rel_ip = b6cd3bcc
>lookup: e->start_ip_offset = bcf18 (rel_ip = b6cd3bcc)
>lookup: e->start_ip_offset = 6d314 (rel_ip = b6cd3bcc)
>lookup: e->start_ip_offset = 33d0c (rel_ip = b6cd3bcc)
...
>lookup: e->start_ip_offset = 15d0c (rel_ip = b6cd3bcc)
>lookup: e->start_ip_offset = 15c40 (rel_ip = b6cd3bcc)
>_Uarm_dwarf_search_unwind_table: IP b6cd3bcc inside range b6c12000-b6d4c000, but no explicit unwind info found
>put_rs_cache: unmasking signals/interrupts and releasing lock
>_Uarm_dwarf_step: returning -10
>_Uarm_step: dwarf_step()=-10
This patch passes map->start as segbase to dwarf_find_debug_frame(), so
di will be initialized correctly.
In addition, dso and executable are different when setting segbase. This
patch first check whether the elf is executable, and pass segbase only
for shared object.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1421203007-75799-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull SCSI fixes from James Bottomley:
"This is a set of three fixes: one to correct an abort path thinko
causing failures (and a panic) in USB on device misbehaviour, One to
fix an out of order issue in the fnic driver and one to match discard
expectations to qemu which otherwise cause Linux to behave badly as a
guest"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
SCSI: fix regression in scsi_send_eh_cmnd()
fnic: IOMMU Fault occurs when IO and abort IO is out of order
sd: tweak discard heuristics to work around QEMU SCSI issue
futex_atomic_cmpxchg_inatomic() does not work on UML because
it triggers a copy_from_user() in kernel context.
On UML copy_from_user() can only be used if the kernel was called
by a real user space process such that UML can use ptrace()
to fetch the value.
Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Daniel Walter <d.walter@0x90.at>
Commit 0e5bdb3f9fa5 (clk: rockchip: switch to using the new cpuclk type
for armclk) didn't take into account that the divider used on rk3288
are of the (n+1) type.
The rk3066 and rk3188 socs use more complex divider types making it
necessary for the list-elements to be the real register-values to write.
Therefore reduce divider values in the table accordingly so that they
really are the values that should be written to the registers and match
the dividers actually specified for the rk3288.
Reported-by: Sonny Rao <sonnyrao@chromium.org>
Fixes: 0e5bdb3f9fa5 ("clk: rockchip: switch to using the new cpuclk type for armclk")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Cc: stable@vger.kernel.org
Merge "ARM: berlin: Fixes for v3.19 (round 1)" from Sebastian Hesselbarth:
Marvell Berlin fixes for v3.19 round 1:
- SDHCI DT fixes for BG2Q and BG2Q reference board
- BG2Q SM GPIO DT node relocation
* tag 'berlin-fixes-for-3.19-1' of git://git.infradead.org/users/hesselba/linux-berlin:
ARM: dts: berlin: correct BG2Q's SM GPIO location.
ARM: dts: berlin: add broken-cd and set bus width for eMMC in Marvell DMP DT
ARM: dts: berlin: fix io clk and add missing core clk for BG2Q sdhci2 host
Signed-off-by: Olof Johansson <olof@lixom.net>
atmel_lcdfb needs also uses hclk clock, but AT91SAM9263 doesn't have that
specific clock, so use lcd_clk twice. The same was done in
arch/arm/mach-at91/at91sam9263.c
Signed-off-by: Alexander Stein <alexanders83@web.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Pull more i2c updates from Wolfram Sang:
"Included are two bugfixes needing some bigger refactoring (sh_mobile:
deferred probe with DMA, mv64xxx: fix offload support) and one
deprecated driver removal I thought would go in via ppc but I
misunderstood. It has a proper ack from BenH"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: sh_mobile: fix uninitialized var when debug is enabled
macintosh: therm_pm72: delete deprecated driver
i2c: sh_mobile: I2C_SH_MOBILE should depend on HAS_DMA
i2c: sh_mobile: rework deferred probing
i2c: sh_mobile: refactor DMA setup
i2c: mv64xxx: rework offload support to fix several problems
i2c: mv64xxx: use BIT() macro for register value definitions