Commit graph

43038 commits

Author SHA1 Message Date
Linus Torvalds
d7637d01be Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:

 - Two bug fixes for misuse of PAGE_MASK in scatterlist and dma-debug.
   These are tagged for -stable.  The scatterlist impact is potentially
  corrupted dma addresses on HIGHMEM enabled platforms.

 - A minor locking fix for the NFIT hot-add implementation that is new
   in 4.4-rc.  This would only trigger in the case a hot-add raced
   driver removal.

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dma-debug: Fix dma_debug_entry offset calculation
  Revert "scatterlist: use sg_phys()"
  nfit: acpi_nfit_notify(): Do not leave device locked
2015-12-17 11:20:13 -08:00
Linus Torvalds
a5e90b1b07 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Further ARM fixes:
   - Anson Huang noticed that we were corrupting a register we shouldn't
     be during suspend on some CPUs.
   - Shengjiu Wang spotted a bug in the 'swp' instruction emulation.
   - Will Deacon fixed a bug in the ASID allocator.
   - Laura Abbott fixed the kernel permission protection to apply to all
     threads running in the system.
   - I've fixed two bugs with the domain access control register
     handling, one to do with printing an appropriate value at oops
     time, and the other to further fix the uaccess_with_memcpy code"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8475/1: SWP emulation: Restore original *data when failed
  ARM: 8471/1: need to save/restore arm register(r11) when it is corrupted
  ARM: fix uaccess_with_memcpy() with SW_DOMAIN_PAN
  ARM: report proper DACR value in oops dumps
  ARM: 8464/1: Update all mm structures with section adjustments
  ARM: 8465/1: mm: keep reserved ASIDs in sync with mm after multiple rollovers
2015-12-16 10:57:24 -08:00
Dan Williams
3e6110fd54 Revert "scatterlist: use sg_phys()"
commit db0fa0cb01 "scatterlist: use sg_phys()" did replacements of
the form:

    phys_addr_t phys = page_to_phys(sg_page(s));
    phys_addr_t phys = sg_phys(s) & PAGE_MASK;

However, this breaks platforms where sizeof(phys_addr_t) >
sizeof(unsigned long).  Revert for 4.3 and 4.4 to make room for a
combined helper in 4.5.

Cc: <stable@vger.kernel.org>
Cc: Jens Axboe <axboe@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: db0fa0cb01 ("scatterlist: use sg_phys()")
Suggested-by: Joerg Roedel <joro@8bytes.org>
Reported-by: Vitaly Lavrov <vel21ripn@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-12-15 12:54:06 -08:00
Shengjiu Wang
34bfbae33a ARM: 8475/1: SWP emulation: Restore original *data when failed
__user_swpX_asm maybe failed in first STREX operation, emulate_swpX
will try again, but the *data has been changed in first time. which
causes the result is wrong.
This patch is to fix this issue. When STREX succeed, change the *data.
if it fail, *data is not changed.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-15 11:51:42 +00:00
Anson Huang
fa0708b320 ARM: 8471/1: need to save/restore arm register(r11) when it is corrupted
In cpu_v7_do_suspend routine, r11 is used while it is NOT
saved/restored, different compiler may have different usage
of ARM general registers, so it may cause issues during
calling cpu_v7_do_suspend.

We meet kernel fault occurs when using GCC 4.8.3, r11 contains
valid value before calling into cpu_v7_do_suspend, but when returned
from this routine, r11 is corrupted and lead to kernel fault.
Doing save/restore for those corrupted registers is a must in
assemble code.

Signed-off-by: Anson Huang <Anson.Huang@freescale.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Cc: <stable@vger.kernel.org> # v3.3+
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-15 11:51:41 +00:00
Russell King
c014953d84 ARM: fix uaccess_with_memcpy() with SW_DOMAIN_PAN
The uaccess_with_memcpy() code is currently incompatible with the SW
PAN code: it takes locks within the region that we've changed the DACR,
potentially sleeping as a result.  As we do not save and restore the
DACR across co-operative sleep events, can lead to an incorrect DACR
value later in this code path.

Reported-by: Peter Rosin <peda@axentia.se>
Tested-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-15 11:51:02 +00:00
Linus Torvalds
dec9cbf97d Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixlets from Thomas Gleixner:
 "Two trivial fixes which add missing header fileas and forward
  declarations so the code will compile even when the magic include
  chains are different"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3: Add missing include for barrier.h
  irqchip/gic-v3: Add missing struct device_node declaration
2015-12-13 12:41:10 -08:00
Linus Torvalds
097b285d32 ARM: SoC fixes for 4.4-rc
Here are a bunch of small bug fixes for various ARM platforms, nothing
 really sticks out this week, most of either fixes bugs in code that was
 just added in 4.4, or that has been broken for many years without anyone
 noticing.
 
 at91/sama5d2
 - fix sama5de hardware setup of sd/mmc interface
 - proper selection of pinctrl drivers. PIO4 is necessary for sama5d2
 
 berlin
 - fix incorrect clock input for SDIO
 
 exynos
 - Fix potential NULL pointer dereference in Exynos PMU driver.
 
 imx
 - Fix vf610 SAI clock configuration bug which is discovered by
   the newly added master mode support in SAI audio driver.
 - Fix buggy L2 cache latency values in vf610 device trees, which may
   cause system hang when cpu runs at a higher frequency.
 
 ixp4xx
 - fix prototypes for readl/writel functions
 
 ls2080a
 - use little-endian register access for GPIO and SDHCI
 
 omap
 - Fix clock source for ARM TWD and global timers on am437x
 - Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of
   when MACH_OMAP3_PANDORA is selected
 - Fix SPI DMA handles for dm816x as only some were mapped
 - Fix up mbox cells for dm816x to make mailbox usable
 
 pxa
 - use PWM lookup table for all ezx machines
 
 s3c24xx
 - Remove incorrect __init annotation from s3c24xx cpufreq driver structures.
 
 versatile
 - fix PCI IRQ mapping on Versatile PB
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Here are a bunch of small bug fixes for various ARM platforms, nothing
  really sticks out this week, most of either fixes bugs in code that
  was just added in 4.4, or that has been broken for many years without
  anyone noticing.

  at91/sama5d2:
   - fix sama5de hardware setup of sd/mmc interface
   - proper selection of pinctrl drivers.  PIO4 is necessary for sama5d2

  berlin:
   - fix incorrect clock input for SDIO

  exynos:
   - Fix potential NULL pointer dereference in Exynos PMU driver.

  imx:
   - Fix vf610 SAI clock configuration bug which is discovered by the
     newly added master mode support in SAI audio driver.
   - Fix buggy L2 cache latency values in vf610 device trees, which may
     cause system hang when cpu runs at a higher frequency.

  ixp4xx:
   - fix prototypes for readl/writel functions

  ls2080a:
   - use little-endian register access for GPIO and SDHCI

  omap:
   - Fix clock source for ARM TWD and global timers on am437x
   - Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of when
     MACH_OMAP3_PANDORA is selected
   - Fix SPI DMA handles for dm816x as only some were mapped
   - Fix up mbox cells for dm816x to make mailbox usable

  pxa:
   - use PWM lookup table for all ezx machines

  s3c24xx:
   - Remove incorrect __init annotation from s3c24xx cpufreq driver
     structures.

  versatile:
   - fix PCI IRQ mapping on Versatile PB"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ls2080a/dts: Add little endian property for GPIO IP block
  dt-bindings: define little-endian property for QorIQ GPIO
  ARM64: dts: ls2080a: fix eSDHC endianness
  ARM: dts: vf610: use reset values for L2 cache latencies
  ARM: pxa: use PWM lookup table for all machines
  ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
  ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
  ARM: dts: am4372: fix clock source for arm twd and global timers
  ARM: at91: fix pinctrl driver selection
  ARM: at91/dt: add always-on to 1.8V regulator
  ARM: dts: vf610: fix clock definition for SAI2
  ARM: imx: clk-vf610: fix SAI clock tree
  ARM: ixp4xx: fix read{b,w,l} return types
  irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB
  ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
  ARM: dts: add dm816x missing spi DT dma handles
  ARM: dts: add dm816x missing #mbox-cells
  cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init
  ARM: EXYNOS: Fix potential NULL pointer access in exynos_sys_powerdown_conf
2015-12-12 16:43:44 -08:00
Kevin Hilman
7f4c977849 The i.MX fixes for 4.4, 2nd round:
- Fix vf610 SAI clock configuration bug which is discovered by the newly
   added master mode support in SAI audio driver.
 - Fix buggy L2 cache latency values in vf610 device trees, which may
   cause system hang when cpu runs at a higher frequency.
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Merge tag 'imx-fixes-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Merge "ARM: imx: fixes for 4.4, 2nd round" from Shawn Guo:

The i.MX fixes for 4.4, 2nd round:
- Fix vf610 SAI clock configuration bug which is discovered by the newly
  added master mode support in SAI audio driver.
- Fix buggy L2 cache latency values in vf610 device trees, which may
  cause system hang when cpu runs at a higher frequency.

* tag 'imx-fixes-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: vf610: use reset values for L2 cache latencies
  ARM: dts: vf610: fix clock definition for SAI2
  ARM: imx: clk-vf610: fix SAI clock tree
2015-12-11 16:14:34 -08:00
Stefan Agner
9c17190595 ARM: dts: vf610: use reset values for L2 cache latencies
Linux on Vybrid used several different L2 latencies so far, none
of them seem to be the right ones. According to the application note
AN4947 ("Understanding Vybrid Architecture"), the tag portion runs
on CPU clock and is inside the L2 cache controller, whereas the data
portion is stored in the external SRAM running on platform clock.
Hence it is likely that the correct value requires a higher data
latency then tag latency.

These are the values which have been used so far:
- The mainline values:
  arm,data-latency = <1 1 1>;
  arm,tag-latency = <2 2 2>;
  Those values have lead to problems on higher clocks. They look
  like a poor translation from the reset values (missing +1 offset
  and a mix up between tag/latency values).
- The Linux 3.0 (SoC vendor BSP) values (converted to DT notation):
  arm,data-latency = <4 2 3>
  arm,tag-latency = <4 2 3>
  The cache initialization function along with the value matches the
  i.MX6 code from the same kernel, so it seems that those values have
  just been copied.
- The Colibri values:
  arm,data-latency = <2 1 2>;
  arm,tag-latency = <3 2 3>;
  Those were a mix between the values of the Linux 3.0 based BSP and
  the mainline values above.
- The SoC Reset values (converted to DT notation):
  arm,data-latency = <3 3 3>;
  arm,tag-latency = <2 2 2>;

So far there is no official statement on what the correct values are.
See also the related Freescale community thread:
https://community.freescale.com/message/579785#579785

For now, the reset values seem to be the best bet. Remove all other
"bogus" values and use the reset value on vf610.dtsi level.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-12-11 21:32:47 +08:00
Arnd Bergmann
dde8fdcf66 Few fixes for omaps for v4.4-rc cycle:
- Fix clock source for ARM TWD and global timers on am437x
 
 - Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of
   when MACH_OMAP3_PANDORA is selected
 
 - Fix SPI DMA handles for dm816x as only some were mapped
 
 - Fix up mbox cells for dm816x to make mailbox usable
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Merge tag 'omap-for-v4.4/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v4.4-rc4" from Tony Lindgren

Few fixes for omaps for v4.4-rc cycle:

- Fix clock source for ARM TWD and global timers on am437x

- Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of
  when MACH_OMAP3_PANDORA is selected

- Fix SPI DMA handles for dm816x as only some were mapped

- Fix up mbox cells for dm816x to make mailbox usable

* tag 'omap-for-v4.4/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am4372: fix clock source for arm twd and global timers
  ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
  ARM: dts: add dm816x missing spi DT dma handles
  ARM: dts: add dm816x missing #mbox-cells
2015-12-11 00:42:38 +01:00
Arnd Bergmann
ddd47fbcf6 ARM: pxa: use PWM lookup table for all machines
The recent change to use a pwm lookup table for the ezx machines
was incomplete and only changed the a780 model, but not the
other ones in the same file.

This adds the missing calls to pwm_add_table().

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: c332202289 ("ARM: pxa: ezx: Use PWM lookup table")
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
2015-12-11 00:27:58 +01:00
Arnd Bergmann
e229213dd0 Marvell Berlin fixes for 4.4-rc1 (round 1)
- fix wrong SDIO DT clocks on BG2Q
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Merge tag 'berlin-fixes-for-4.4-rc1-1' of git://git.infradead.org/users/hesselba/linux-berlin into fixes

Merge "Marvell Berlin fixes for 4.4-rc1 (round 1)" from Sebastian Hesselbarth:

- fix wrong SDIO DT clocks on BG2Q

* tag 'berlin-fixes-for-4.4-rc1-1' of git://git.infradead.org/users/hesselba/linux-berlin:
  ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
  ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
2015-12-11 00:24:38 +01:00
Arnd Bergmann
9421a14597 Second fixes for 4.4:
- fix of a hardware setup that prevents the sd/mmc interface to show up on
   sama5d2.
 - proper selection of pinctrl drivers. PIO4 is necessary for the sama5d2 to
   boot.
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Merge tag 'at91-4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into fixes

Merge "Second fixes for 4.4" from Alexandre Belloni:

- fix of a hardware setup that prevents the sd/mmc interface to show up on
  sama5d2.
- proper selection of pinctrl drivers. PIO4 is necessary for the sama5d2 to
  boot.

* tag 'at91-4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  ARM: at91: fix pinctrl driver selection
  ARM: at91/dt: add always-on to 1.8V regulator
2015-12-11 00:22:11 +01:00
Arnd Bergmann
789d73b384 Fixes for Exynos:
1. Fix potential NULL pointer dereference in Exynos PMU driver.
 2. Remove incorrect __init annotation from s3c24xx cpufreq driver
    structures.
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Merge tag 'samsung-fixes-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes

Merge "Fixes for Exynos" from Krzysztof Kozlowski:

1. Fix potential NULL pointer dereference in Exynos PMU driver.
2. Remove incorrect __init annotation from s3c24xx cpufreq driver
   structures.

* tag 'samsung-fixes-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init
  ARM: EXYNOS: Fix potential NULL pointer access in exynos_sys_powerdown_conf
2015-12-11 00:19:37 +01:00
Jisheng Zhang
b5010d2081 ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
We removed CLK_IGNORE_UNUSED from CLKID_SDIO's flag, so the sdhci0 and
sdhci1 don't work. We fix this by adding the optional 2nd clock for
BG2Q's sdhci0 and sdhci1. This patch brings another benefit: the 2nd
clock can be disabled during runtime pm, so saves power a bit.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2015-12-10 21:00:24 +01:00
Jisheng Zhang
5d756147f7 ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
The optional 2nd clock is CLKID_SDIO. We removed CLK_IGNORE_UNUSED
from CLKID_SDIO's flag, so the sdhci2 doesn't work. This patch fixes
this issue by correcting the sdhci2's 2nd clock.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2015-12-10 21:00:16 +01:00
Marc Zyngier
8e31ed9c18 irqchip/gic-v3: Add missing include for barrier.h
Both the 32bit and 64bit versions of the GICv3 header file are using
barriers, but neglect to include barrier.h, leading to an interesting
splat in some circumstances.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1449483072-17694-3-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-12-10 19:13:26 +01:00
Grygorii Strashko
14054fb1da ARM: dts: am4372: fix clock source for arm twd and global timers
ARM TWD and Global timer are clocked by PERIPHCLK which is MPU_CLK/2.
But now they are clocked by dpll_mpu_m2_ck == MPU_CLK and, as result.
Timekeeping core misbehaves. For example, execution of command
"sleep 5" will take 10 sec instead of 5.

Hence, fix it by adding mpu_periphclk ("fixed-factor-clock") and use
it for clocking ARM TWD and Global timer (same way as on OMAP4).

Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Fixes:commit 8cbd4c2f6a ("arm: boot: dts: am4372: add ARM timers and SCU nodes")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-09 16:46:25 -08:00
Russell King
77f1b959b0 ARM: report proper DACR value in oops dumps
When printing the DACR value, we print the domain register value.
This is incorrect, as with SW_PAN enabled, that is the current setting,
rather than the faulting context's setting.  Arrange to print the
faulting domain's saved DACR value instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-04 19:20:48 +00:00
Laura Abbott
08925c2f12 ARM: 8464/1: Update all mm structures with section adjustments
Currently, when updating section permissions to mark areas RO
or NX, the only mm updated is current->mm. This is working off
the assumption that there are no additional mm structures at
the time. This may not always hold true. (Example: calling
modprobe early will trigger a fork/exec). Ensure all mm structres
get updated with the new section information.

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-04 19:20:34 +00:00
Linus Torvalds
db281766ba KVM/ARM fixes for v4.4-rc4
- A series of fixes to deal with the aliasing between the sp and xzr register
 - A fix for the cache flush fix that went in -rc3
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull ARM KVM fixes from Paolo Bonzini:

 - a series of fixes to deal with the aliasing between the sp and xzr
   register

 - a fix for the cache flush fix that went in -rc3

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  ARM/arm64: KVM: correct PTE uncachedness check
  arm64: KVM: Get rid of old vcpu_reg()
  arm64: KVM: Correctly handle zero register in system register accesses
  arm64: KVM: Remove const from struct sys_reg_params
  arm64: KVM: Correctly handle zero register during MMIO
2015-12-04 10:17:20 -08:00
Ludovic Desroches
8423536fe4 ARM: at91: fix pinctrl driver selection
Move the selection of the pinctrl driver to SoC family level since we
have two pinctrl drivers. It is useless to select one which is not
compatible with the SoC.

[abelloni: fixed pm.c when only sama2d2 is selected]
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-12-04 18:54:53 +01:00
Paolo Bonzini
0992207600 KVM/ARM fixes for v4.4-rc4
- A series of fixes to deal with the aliasing between the sp and xzr register
 - A fix for the cache flush fix that went in -rc3
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Merge tag 'kvm-arm-for-v4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

KVM/ARM fixes for v4.4-rc4

- A series of fixes to deal with the aliasing between the sp and xzr register
- A fix for the cache flush fix that went in -rc3
2015-12-04 18:32:32 +01:00
Nicolas Ferre
863c1ca73f ARM: at91/dt: add always-on to 1.8V regulator
As the SDHCI controller needs the 1.8V line to be always enabled for some eMMC
configurations, set the proper "regulator-always-on" property to the board DTS
files.
Note that the sdhci classical regulator definitions doesn't suit our controller
for this 1.8V purpose.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-12-04 18:15:59 +01:00
Ard Biesheuvel
0de58f8528 ARM/arm64: KVM: correct PTE uncachedness check
Commit e6fab54423 ("ARM/arm64: KVM: test properly for a PTE's
uncachedness") modified the logic to test whether a HYP or stage-2
mapping needs flushing, from [incorrectly] interpreting the page table
attributes to [incorrectly] checking whether the PFN that backs the
mapping is covered by host system RAM. The PFN number is part of the
output of the translation, not the input, so we have to use pte_pfn()
on the contents of the PTE, not __phys_to_pfn() on the HYP virtual
address or stage-2 intermediate physical address.

Fixes: e6fab54423 ("ARM/arm64: KVM: test properly for a PTE's uncachedness")
Cc: stable@vger.kernel.org
Tested-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-04 16:30:17 +00:00
Pavel Fedin
f6be563abb arm64: KVM: Get rid of old vcpu_reg()
Using oldstyle vcpu_reg() accessor is proven to be inappropriate and
unsafe on ARM64. This patch converts the rest of use cases to new
accessors and completely removes vcpu_reg() on ARM64.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-04 16:30:03 +00:00
Pavel Fedin
bc45a516fa arm64: KVM: Correctly handle zero register during MMIO
On ARM64 register index of 31 corresponds to both zero register and SP.
However, all memory access instructions, use ZR as transfer register. SP
is used only as a base register in indirect memory addressing, or by
register-register arithmetics, which cannot be trapped here.

Correct emulation is achieved by introducing new register accessor
functions, which can do special handling for reg_num == 31. These new
accessors intentionally do not rely on old vcpu_reg() on ARM64, because
it is to be removed. Since the affected code is shared by both ARM
flavours, implementations of these accessors are also added to ARM32 code.

This patch fixes setting MMIO register to a random value (actually SP)
instead of zero by something like:

 *((volatile int *)reg) = 0;

compilers tend to generate "str wzr, [xx]" here

[Marc: Fixed 32bit splat]

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-04 16:29:37 +00:00
Linus Torvalds
071f5d105a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "A lot of Thanksgiving turkey leftovers accumulated, here goes:

   1) Fix bluetooth l2cap_chan object leak, from Johan Hedberg.

   2) IDs for some new iwlwifi chips, from Oren Givon.

   3) Fix rtlwifi lockups on boot, from Larry Finger.

   4) Fix memory leak in fm10k, from Stephen Hemminger.

   5) We have a route leak in the ipv6 tunnel infrastructure, fix from
      Paolo Abeni.

   6) Fix buffer pointer handling in arm64 bpf JIT,f rom Zi Shen Lim.

   7) Wrong lockdep annotations in tcp md5 support, fix from Eric
      Dumazet.

   8) Work around some middle boxes which prevent proper handling of TCP
      Fast Open, from Yuchung Cheng.

   9) TCP repair can do huge kmalloc() requests, build paged SKBs
      instead.  From Eric Dumazet.

  10) Fix msg_controllen overflow in scm_detach_fds, from Daniel
      Borkmann.

  11) Fix device leaks on ipmr table destruction in ipv4 and ipv6, from
      Nikolay Aleksandrov.

  12) Fix use after free in epoll with AF_UNIX sockets, from Rainer
      Weikusat.

  13) Fix double free in VRF code, from Nikolay Aleksandrov.

  14) Fix skb leaks on socket receive queue in tipc, from Ying Xue.

  15) Fix ifup/ifdown crach in xgene driver, from Iyappan Subramanian.

  16) Fix clearing of persistent array maps in bpf, from Daniel
      Borkmann.

  17) In TCP, for the cross-SYN case, we don't initialize tp->copied_seq
      early enough.  From Eric Dumazet.

  18) Fix out of bounds accesses in bpf array implementation when
      updating elements, from Daniel Borkmann.

  19) Fill gaps in RCU protection of np->opt in ipv6 stack, from Eric
      Dumazet.

  20) When dumping proxy neigh entries, we have to accomodate NULL
      device pointers properly, from Konstantin Khlebnikov.

  21) SCTP doesn't release all ipv6 socket resources properly, fix from
      Eric Dumazet.

  22) Prevent underflows of sch->q.qlen for multiqueue packet
      schedulers, also from Eric Dumazet.

  23) Fix MAC and unicast list handling in bnxt_en driver, from Jeffrey
      Huang and Michael Chan.

  24) Don't actively scan radar channels, from Antonio Quartulli"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (110 commits)
  net: phy: reset only targeted phy
  bnxt_en: Setup uc_list mac filters after resetting the chip.
  bnxt_en: enforce proper storing of MAC address
  bnxt_en: Fixed incorrect implementation of ndo_set_mac_address
  net: lpc_eth: remove irq > NR_IRQS check from probe()
  net_sched: fix qdisc_tree_decrease_qlen() races
  openvswitch: fix hangup on vxlan/gre/geneve device deletion
  ipv4: igmp: Allow removing groups from a removed interface
  ipv6: sctp: implement sctp_v6_destroy_sock()
  arm64: bpf: add 'store immediate' instruction
  ipv6: kill sk_dst_lock
  ipv6: sctp: add rcu protection around np->opt
  net/neighbour: fix crash at dumping device-agnostic proxy entries
  sctp: use GFP_USER for user-controlled kmalloc
  sctp: convert sack_needed and sack_generation to bits
  ipv6: add complete rcu protection around np->opt
  bpf: fix allocation warnings in bpf maps and integer overflow
  mvebu: dts: enable IP checksum with jumbo frames for Armada 38x on Port0
  net: mvneta: enable setting custom TX IP checksum limit
  net: mvneta: fix error path for building skb
  ...
2015-12-03 16:02:46 -08:00
Marcin Wojtas
c4a25007cf mvebu: dts: enable IP checksum with jumbo frames for Armada 38x on Port0
The Ethernet controller found in the Armada 38x SoC's family support
TCP/IP checksumming with frame sizes larger than 1600 bytes, however
only on port 0.

This commit enables it by setting 'tx-csum-limit' to 9800B in
'ethernet@70000' node.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-02 23:35:05 -05:00
Will Deacon
40ee068ec0 ARM: 8465/1: mm: keep reserved ASIDs in sync with mm after multiple rollovers
Under some unusual context-switching patterns, it is possible to end up
with multiple threads from the same mm running concurrently with
different ASIDs:

1. CPU x schedules task t with mm p containing ASID a and generation g
   This task doesn't block and the CPU doesn't context switch.
   So:
     * per_cpu(active_asid, x) = {g,a}
     * p->context.id = {g,a}

2. Some other CPU generates an ASID rollover. The global generation is
   now (g + 1). CPU x is still running t, with no context switch and
   so per_cpu(reserved_asid, x) = {g,a}

3. CPU y schedules task t', which shares mm p with t. The generation
   mismatches, so we take the slowpath and hit the reserved ASID from
   CPU x. p is then updated so that p->context.id = {g + 1,a}

4. CPU y schedules some other task u, which has an mm != p.

5. Some other CPU generates *another* CPU rollover. The global
   generation is now (g + 2). CPU x is still running t, with no context
   switch and so per_cpu(reserved_asid, x) = {g,a}.

6. CPU y once again schedules task t', but now *fails* to hit the
   reserved ASID from CPU x because of the generation mismatch. This
   results in a new ASID being allocated, despite the fact that t is
   still running on CPU x with the same mm.

Consequently, TLBIs (e.g. as a result of CoW) will not be synchronised
between the two threads.

This patch fixes the problem by updating all of the matching reserved
ASIDs when we hit on the slowpath (i.e. in step 3 above). This keeps
the reserved ASIDs in-sync with the mm and avoids the problem.

Cc: <stable@vger.kernel.org>
Reported-by: Tony Thompson <anthony.thompson@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-02 23:57:54 +00:00
Stefan Agner
531ee1f4ea ARM: dts: vf610: fix clock definition for SAI2
So far, only the bus clock has been assigned, but in reality the
SAI IP has for clock inputs. The driver has been updated to
make use of the additional clock inputs by c3ecef21c3 ("ASoC:
fsl_sai: add sai master mode support"). Due to a bug in the
clock tree, the audio clock has been enabled none the less by
the specified bus clock (see "ARM: imx: clk-vf610: fix SAI
clock tree"), which made master mode even without the proper
clock assigned working.

This patch completes the clock definition for SAI2. On Vybrid,
only two MCLK out of the four options are available (the first
being the bus clock itself). See chapter 8.10.1.2.3 of the
Vybrid Reference manual ("SAI transmitter and receiver options
for MCLK selection"). Note: The audio clocks are only required
in master mode.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-12-02 09:46:59 +08:00
Arnd Bergmann
d66e5139ae ARM: ixp4xx: fix read{b,w,l} return types
On ixp4xx, the readl() function returns an 'unsigned long' output
when indirect I/O is used. This is unlike any other platform, and
it causes lots of harmless compiler warnings, such as:

drivers/ata/libahci.c: In function 'ahci_show_host_version':
drivers/ata/libahci.c:254:22: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'long unsigned int' [-Wformat=]
drivers/block/mtip32xx/mtip32xx.c: In function 'mtip_hw_read_registers':
drivers/block/mtip32xx/mtip32xx.c:2602:31: warning: format '%X' expects argument of type 'unsigned int', but argument 3 has type 'long unsigned int' [-Wformat=]
drivers/block/cciss.c: In function 'print_cfg_table':
drivers/block/cciss.c:3845:25: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=]

This changes all six of the ixp4xx specific I/O read functions
to return the same types that we have in the normal asm/io.h,
to avoid the warnings.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Krzysztof Halasa <khalasa@piap.pl>
2015-12-01 23:45:30 +01:00
Grygorii Strashko
fc82792851 ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
Enable REGULATOR_FIXED_VOLTAGE for all OMAP2+ platforms
otherwise system can't boot from SD-card when kernel is
built for single SoC (for example, with CONFIG_SOC_DRA7XX=y only).

It's also required for almost all TI SoC's platforms.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 14:38:05 -08:00
Neil Armstrong
f1b2e7c29a ARM: dts: add dm816x missing spi DT dma handles
Add the missing SPI controller DMA handler in the dm816x DT
node, only properties for the two channels on four were present.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 10:21:17 -08:00
Neil Armstrong
d3e41a9fc0 ARM: dts: add dm816x missing #mbox-cells
Add missing #mbox-cells for dm816x mbox DT node.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-30 10:20:31 -08:00
Linus Torvalds
818aba30b3 RTC fixes for 4.4
Two fixes for the ds1307 alarm and wakeup.
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Merge tag 'rtc-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC fixes from Alexandre Belloni:
 "Two fixes for the ds1307 alarm and wakeup"

* tag 'rtc-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: ds1307: fix alarm reading at probe time
  rtc: ds1307: fix kernel splat due to wakeup irq handling
2015-11-29 17:30:41 -08:00
Linus Torvalds
04527fdafe Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Just two changes this time around:

   - wire up the new mlock2 syscall added during the last merge window

   - fix a build problem with certain configurations provoked by making
     CONFIG_OF user selectable"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8454/1: OF implies OF_FLATTREE
  ARM: wire up mlock2 syscall
2015-11-29 17:13:07 -08:00
Arnd Bergmann
aa7d5f18e5 ARM: 8454/1: OF implies OF_FLATTREE
On the ARM architecture, individual platforms select CONFIG_USE_OF if they
need it, but all device tree code is keyed off CONFIG_OF. When building
a platform without DT support and manually enabling CONFIG_OF, we now
get a number of build errors, e.g.

arch/arm/kernel/devtree.c: In function 'setup_machine_fdt':
arch/arm/kernel/devtree.c:215:19: error: implicit declaration of function 'early_init_dt_verify' [-Werror=implicit-function-declaration]

We could now try to separate the use case of booting from DT vs. the
case of using the dynamic implementation, but that seems more complicated
than it can gain us.

This simply changes the ARM Kconfig file to always enable OF_RESERVED_MEM
and OF_EARLY_FLATTREE when CONFIG_OF is enabled. These options add a little
extra code when we just want the dynamic OF implementation, but that seems
like a rather obscure case, and this version solves all CONFIG_OF related
randconfig regressions.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 0166dc11be ("of: make CONFIG_OF user selectable")
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-11-28 23:26:12 +00:00
Linus Torvalds
081f3698e6 PCI updates for v4.4:
NUMA
     Prevent out of bounds access in numa_node override (Mathias Krause)
 
   HiSilicon host bridge driver
     Fix deferred probing (Arnd Bergmann)
 
   Synopsys DesignWare host bridge driver
     Remove incorrect io_base assignment (Stanimir Varbanov)
     Move align_resource function pointer to pci_host_bridge structure (Gabriele Paoloni)
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Merge tag 'pci-v4.4-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Here are a few fixes I'd like to have in v4.4: a generic one for sysfs
  and three for HiSilicon and DesignWare host controllers.

  Summary:

  NUMA:
   - Prevent out of bounds access in numa_node override (Mathias Krause)

  HiSilicon host bridge driver:
   - Fix deferred probing (Arnd Bergmann)

  Synopsys DesignWare host bridge driver:
   - Remove incorrect io_base assignment (Stanimir Varbanov)
   - Move align_resource function pointer to pci_host_bridge structure
     (Gabriele Paoloni)"

* tag 'pci-v4.4-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  ARM/PCI: Move align_resource function pointer to pci_host_bridge structure
  PCI: hisi: Fix deferred probing
  PCI: designware: Remove incorrect io_base assignment
  PCI: Prevent out of bounds access in numa_node override
2015-11-28 13:07:41 -08:00
Linus Torvalds
c64410f3ec ARM: SoC fixes for 4.4-rc
There is a small backlog of at91 patches here, the most significant is
 the addition of some sama5d2 Xplained nodes that were waiting on an MFD include
 file to get merged through another tree. We normally try to sort those out
 before the merge window opens, but the maintainer wasn't aware of that here
 and I decided to merge the changes this time as an exception.
 
 On OMAP a series of audio changes for dra7 missed the merge window but turned
 out to be necessary to fix a boot time imprecise external abort error and to
 get audio working.
 
 The other changes are the usual simple changes, here is a list sorted by
 platform:
 
 at91:
 	removal of a useless defconfig option
 	removal of some legacy DT pieces
 	use of the proper watchdog compatible string
 	update of the MAINTAINERS entries for some Atmel drivers
 drivers/scpi:
 	hide get_scpi_ops in module from built-in code
 imx:
 	add missing .irq_set_type for i.MX GPC irq_chip.
 	fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
 	fix a merge error in Vybrid dts regarding to ADC device property
 keystone:
         fix the optional PDSP firmware loading
         fix linking RAM setup for QMs
         fix crash with clk_ignore_unused
 mediatek:
 	Enable SCPSYS power domain driver by default
 mvebu:
 	fix QNAP TS219 power-off in dts
 	fix legacy get_irqnr_and_base for dove and orion5x
 omap:
 	fix l4 related boot time errors for dm81xx
 	use lockless cldm/pwrdm api in omap4_boot_secondary
 	remove t410 abort handler to avoid hiding other critical errors
 	mark cpuidle tracepoints as _rcuidle
 	fix module alias for omap-ocp2scp
 pxa:
 	palm: Fix typos in PWM lookup table code
 renesas:
 	missing __initconst annotation for r8a7793_boards_compat_dt
 rockchip:
 	disable mmc-tuning on the veyron-minnie board
 	adding the init state for the over-temperature-protection
 zx:
 	only build power domain code when CONFIG_PM=y
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "There is a small backlog of at91 patches here, the most significant is
  the addition of some sama5d2 Xplained nodes that were waiting on an
  MFD include file to get merged through another tree.

  We normally try to sort those out before the merge window opens, but
  the maintainer wasn't aware of that here and I decided to merge the
  changes this time as an exception.

  On OMAP a series of audio changes for dra7 missed the merge window but
  turned out to be necessary to fix a boot time imprecise external abort
  error and to get audio working.

  The other changes are the usual simple changes, here is a list sorted
  by platform:

  at91:
	removal of a useless defconfig option
	removal of some legacy DT pieces
	use of the proper watchdog compatible string
	update of the MAINTAINERS entries for some Atmel drivers

  drivers/scpi:
	hide get_scpi_ops in module from built-in code

  imx:
	add missing .irq_set_type for i.MX GPC irq_chip.
	fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
	fix a merge error in Vybrid dts regarding to ADC device property

  keystone:
        fix the optional PDSP firmware loading
        fix linking RAM setup for QMs
        fix crash with clk_ignore_unused

  mediatek:
	Enable SCPSYS power domain driver by default

  mvebu:
	fix QNAP TS219 power-off in dts
	fix legacy get_irqnr_and_base for dove and orion5x

  omap:
	fix l4 related boot time errors for dm81xx
	use lockless cldm/pwrdm api in omap4_boot_secondary
	remove t410 abort handler to avoid hiding other critical errors
	mark cpuidle tracepoints as _rcuidle
	fix module alias for omap-ocp2scp

  pxa:
	palm: Fix typos in PWM lookup table code

  renesas:
	missing __initconst annotation for r8a7793_boards_compat_dt

  rockchip:
	disable mmc-tuning on the veyron-minnie board
	adding the init state for the over-temperature-protection

  zx:
	only build power domain code when CONFIG_PM=y"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  ARM: OMAP4+: SMP: use lockless clkdm/pwrdm api in omap4_boot_secondary
  arm: omap2+: add missing HWMOD_NO_IDLEST in 81xx hwmod data
  ARM: orion5x: Fix legacy get_irqnr_and_base
  ARM: dove: Fix legacy get_irqnr_and_base
  soc: Mediatek: Enable SCPSYS power domain driver by default
  ARM: dts: vfxxx: Fix dspi[01] spi-num-chipselects.
  ARM: dts: keystone: k2l: fix kernel crash when clk_ignore_unused is not in bootargs
  soc: ti: knav_qmss_queue: Fix linking RAM setup for queue managers
  soc: ti: use request_firmware_direct() as acc firmware is optional
  ARM: imx: add platform irq type setting in gpc
  ARM: dts: vfxxx: Fix erroneous property in esdhc0 node
  ARM: shmobile: r8a7793: proper constness with __initconst
  scpi: hide get_scpi_ops in module from built-in code
  ARM: zx: only build power domain code when CONFIG_PM=y
  ARM: pxa: palm: Fix typos in PWM lookup table code
  ARM: dts: Kirkwood: Fix QNAP TS219 power-off
  ARM: dts: rockchip: Add OTP gpio pinctrl to rk3288 tsadc node
  ARM: dts: rockchip: temporarily remove emmc hs200 speed from rk3288 minnie
  MAINTAINERS: Atmel drivers: change NAND and ISI entries
  ARM: at91/dt: sama5d2 Xplained: add several devices
  ...
2015-11-27 14:22:03 -08:00
Arnd Bergmann
a405fd1b1f Two fixes to Rockchip devicetree files, disabling the mmc-tuning
on the veyron-minnie board for now and adding the init state for
 the over-temperature-protection to prevent glitches making the
 system reboot sometimes.
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Merge tag 'v4.4-rockchip-dts32-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes

Merge "ARM: rockchip: devicetree fixes for 4.4" from Heiko Stuebner:

Two fixes to Rockchip devicetree files, disabling the mmc-tuning
on the veyron-minnie board for now and adding the init state for
the over-temperature-protection to prevent glitches making the
system reboot sometimes.

* tag 'v4.4-rockchip-dts32-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: Add OTP gpio pinctrl to rk3288 tsadc node
  ARM: dts: rockchip: temporarily remove emmc hs200 speed from rk3288 minnie
2015-11-27 17:41:48 +01:00
Arnd Bergmann
5530f85171 mvebu fixes for 4.4 (part 1)
- Fix QNAP TS219 power-off in dts
 - Fix legacy get_irqnr_and_base for dove and orion5x
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Merge tag 'mvebu-fixes-4.4-1' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu fixes for 4.4 (part 1)" from Jason Cooper:

- Fix QNAP TS219 power-off in dts
- Fix legacy get_irqnr_and_base for dove and orion5x

* tag 'mvebu-fixes-4.4-1' of git://git.infradead.org/linux-mvebu:
  ARM: orion5x: Fix legacy get_irqnr_and_base
  ARM: dove: Fix legacy get_irqnr_and_base
  ARM: dts: Kirkwood: Fix QNAP TS219 power-off
2015-11-27 17:28:41 +01:00
Arnd Bergmann
97a586d2e3 Renesas ARM Based SoC Fixes for v4.4
* r8a7793 SoC: Annotate r8a7793_boards_compat_dt with __initconst
   Aside from being correct this builds that otherwise
   fail with section mismatch errors.
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Merge tag 'renesas-fixes-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Renesas ARM Based SoC Fixes for v4.4" from Simon Horman:

* r8a7793 SoC: Annotate r8a7793_boards_compat_dt with __initconst
  Aside from being correct this builds that otherwise
  fail with section mismatch errors.

* tag 'renesas-fixes-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7793: proper constness with __initconst
2015-11-27 17:28:10 +01:00
Arnd Bergmann
62f49ee26f cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init
s3c2410_plls_add is a device notifier that may be called at runtime and
is correctly not marked __init. However it calls s3c_plltab_register()
which is marked __init, and that triggers a build error when we are
checking for section mismatches:

WARNING: vmlinux.o(.text+0x195e0): Section mismatch in reference from the function s3c2410_plls_add() to the function .init.text:s3c_plltab_register()
The function s3c2410_plls_add() references
the function __init s3c_plltab_register().
This is often because s3c2410_plls_add lacks a __init
annotation or the annotation of s3c_plltab_register is wrong.

This removes the __init annotation from s3c2410_plls_add as well as the
__initdata section annotations from s3c2440_plls_12 and s3c2440_plls_169344,
which in turn are referenced from s3c2410_plls_add.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-11-27 10:10:32 +09:00
Linus Torvalds
4fe5e199eb xen: bug fixes for 4.4-rc2
- Fix gntdev and numa balancing.
 - Fix x86 boot crash due to unallocated legacy irq descs.
 - Fix overflow in evtchn device when > 1024 event channels.
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Merge tag 'for-linus-4.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen bug fixes from David Vrabel:

 - Fix gntdev and numa balancing.

 - Fix x86 boot crash due to unallocated legacy irq descs.

 - Fix overflow in evtchn device when > 1024 event channels.

* tag 'for-linus-4.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/evtchn: dynamically grow pending event channel ring
  xen/events: Always allocate legacy interrupts on PV guests
  xen/gntdev: Grant maps should not be subject to NUMA balancing
2015-11-26 11:42:25 -08:00
Boris Ostrovsky
b4ff8389ed xen/events: Always allocate legacy interrupts on PV guests
After commit 8c058b0b9c ("x86/irq: Probe for PIC presence before
allocating descs for legacy IRQs") early_irq_init() will no longer
preallocate descriptors for legacy interrupts if PIC does not
exist, which is the case for Xen PV guests.

Therefore we may need to allocate those descriptors ourselves.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2015-11-26 18:05:01 +00:00
Arnd Bergmann
5597afad8d Fixes for omaps for v4.4-rc cycle:
- A series of audio changes for dra7 that missed the merge window but turned
   out to be necessary to fix a boot time imprecise external abort error and to
   getaudio working
 
 - Fix l4 related boot time errors for dm81xx
 
 - Use lockless cldm/pwrdm api in omap4_boot_secondary
 
 - Remove t410 custom abort handler that is no longer needed and may
   hide other critical errors
 
 - Mark cpuidle tracepoints as _rcuidle
 
 - Fix module alias for omap-ocp2scp
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Merge tag 'omap-for-v4.4/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "Fixes for omaps for v4.4-rc cycle" from Tony Lindgren:

- A series of audio changes for dra7 that missed the merge window but turned
  out to be necessary to fix a boot time imprecise external abort error and to
  getaudio working

- Fix l4 related boot time errors for dm81xx

- Use lockless cldm/pwrdm api in omap4_boot_secondary

- Remove t410 custom abort handler that is no longer needed and may
  hide other critical errors

- Mark cpuidle tracepoints as _rcuidle

- Fix module alias for omap-ocp2scp

* tag 'omap-for-v4.4/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP4+: SMP: use lockless clkdm/pwrdm api in omap4_boot_secondary
  arm: omap2+: add missing HWMOD_NO_IDLEST in 81xx hwmod data
  ARM: OMAP2+: remove custom abort handler for t410
  ARM: OMAP: DRA7: hwmod: Add data for McASP3
  ARM: OMAP2+: hwmod: Add hwmod flag for HWMOD_OPT_CLKS_NEEDED
  ARM: dts: dra7: Fix McASP3 node regarding to clocks
  bus: omap-ocp2scp: Fix module alias
  ARM: OMAP2+: PM: Denote the cpuidle tracepoints as _rcuidle()
2015-11-25 23:48:57 +01:00
Arnd Bergmann
e6b66dfb37 Few Keystone fixes for 4.4-rcx
- Fix the optional PDSP firmware loading
 	- Fix linking RAM setup for QMs
 	- Fix crash with clk_ignore_unused
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Merge tag 'keystone-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into fixes

Merge "Few Keystone fixes for 4.4-rcx" from Santosh Shilimkar:
	- Fix the optional PDSP firmware loading
	- Fix linking RAM setup for QMs
	- Fix crash with clk_ignore_unused

* tag 'keystone-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  ARM: dts: keystone: k2l: fix kernel crash when clk_ignore_unused is not in bootargs
  soc: ti: knav_qmss_queue: Fix linking RAM setup for queue managers
  soc: ti: use request_firmware_direct() as acc firmware is optional
2015-11-25 23:48:12 +01:00
Arnd Bergmann
d3de94ba4e Linux 4.4-rc2
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Merge tag 'v4.4-rc2' into fixes

Linux 4.4-rc2 is backmerged from the keystone fixes.
2015-11-25 23:47:38 +01:00