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Linus Torvalds 619df5d287 Microblaze patches for 3.17-rc5
- Fix Kconfig menu structure
 - Fix number of syscalls
 - Fix compilation warnings from allmodconfig
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Merge tag 'microblaze-3.17-rc5' of git://git.monstr.eu/linux-2.6-microblaze

Pull arch/microblaze fixes from Michal Simek:
 - Kconfig menu structure fix
 - fix number of syscalls
 - fix compilation warnings from allmodconfig

* tag 'microblaze-3.17-rc5' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Fix number of syscalls
  microblaze: Rename Advance setup to Kernel features
  microblaze: Add mm/Kconfig to advance menu
  arch/microblaze/include/asm/uaccess.h: Use pr_devel() instead of pr_debug()
  arch/microblaze/include/asm/entry.h: Include "linux/linkage.h" to avoid compiling issue
2014-09-09 10:33:52 -07:00
Michal Simek 9fc4b7e241 microblaze: Fix number of syscalls
Number of syscalls have to be updated too.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-09-09 13:14:47 +02:00
Michal Simek b408e2c205 microblaze: Rename Advance setup to Kernel features
"Advance setup: menu is misleading that's why rename it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-09-09 13:14:47 +02:00
Michal Simek 7acdc1cf76 microblaze: Add mm/Kconfig to advance menu
mm/Kconfig is getting too big to be in root menu.
Move it to submenu.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-09-09 13:14:46 +02:00
Chen Gang de295cf0db arch/microblaze/include/asm/uaccess.h: Use pr_devel() instead of pr_debug()
When DYNAMIC_DEBUG enabled, pr_debug() depends on KBUILD_MODNAME which
also depends on the modules number in Makefile. The related information
in "scripts/Makefile.lib" line 94:

  # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
  # end up in (or would, if it gets compiled in)
  # Note: Files that end up in two or more modules are compiled without the
  #       KBUILD_MODNAME definition. The reason is that any made-up name would
  #       differ in different configs.

For this case, 'radio-si470x-i2c.o' and 'radio-si470x-common.o' are in
one line, so cause compiling issue. And 'uaccess.h' is a common shared
header (not specially for drivers), so use pr_devel() instead of is OK.

The related error with allmodconfig:

    CC [M]  drivers/media/radio/si470x/radio-si470x-i2c.o
    CC [M]  drivers/media/radio/si470x/radio-si470x-common.o
  In file included from include/linux/printk.h:257:0,
                   from include/linux/kernel.h:13,
                   from drivers/media/radio/si470x/radio-si470x.h:29,
                   from drivers/media/radio/si470x/radio-si470x-common.c:115:
  ./arch/microblaze/include/asm/uaccess.h: In function 'access_ok':
  include/linux/dynamic_debug.h:66:14: error: 'KBUILD_MODNAME' undeclared (first use in this function)
     .modname = KBUILD_MODNAME,   \
                ^
  include/linux/dynamic_debug.h:76:2: note: in expansion of macro 'DEFINE_DYNAMIC_DEBUG_METADATA'
    DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);  \
    ^
  include/linux/printk.h:263:2: note: in expansion of macro 'dynamic_pr_debug'
    dynamic_pr_debug(fmt, ##__VA_ARGS__)
    ^
  ./arch/microblaze/include/asm/uaccess.h:101:3: note: in expansion of macro 'pr_debug'
     pr_debug("ACCESS fail: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
     ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-09-09 13:10:21 +02:00
Chen Gang dd03524614 arch/microblaze/include/asm/entry.h: Include "linux/linkage.h" to avoid compiling issue
"entry.h" needs 'asmlinkage', and "asm/linkage.h" does not provide it.
So need include "linux/linkage.h" to use generic one instead of.

The related error (with allmodconfig under microblaze):

    CC [M]  drivers/net/ethernet/emulex/benet/be_main.o
  In file included from ./arch/microblaze/include/asm/processor.h:17:0,
                   from include/linux/prefetch.h:14,
                   from drivers/net/ethernet/emulex/benet/be_main.c:18:
  ./arch/microblaze/include/asm/entry.h:33:19: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
   extern asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall);
                     ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-09-09 13:10:20 +02:00
Linus Torvalds 35af25616c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "A bug fix for the vdso code, the loadparm for booting from SCSI is
  added and the access permissions for the dasd module parameters are
  corrected"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/vdso: remove NULL pointer check from clock_gettime
  s390/ipl: Add missing SCSI loadparm attributes to /sys/firmware
  s390/dasd: Make module parameter visible in sysfs
2014-09-08 08:27:00 -07:00
Linus Torvalds 2b12164b55 A smattering of bug fixes across most architectures.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "A smattering of bug fixes across most architectures"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  powerpc/kvm/cma: Fix panic introduces by signed shift operation
  KVM: s390/mm: Fix guest storage key corruption in ptep_set_access_flags
  KVM: s390/mm: Fix storage key corruption during swapping
  arm/arm64: KVM: Complete WFI/WFE instructions
  ARM/ARM64: KVM: Nuke Hyp-mode tlbs before enabling MMU
  KVM: s390/mm: try a cow on read only pages for key ops
  KVM: s390: Fix user triggerable bug in dead code
2014-09-06 16:42:12 -07:00
Linus Torvalds 56c228546e ARM: SoC fixes for v3.17-rc4
Another round of fixes from arm-soc land, which are mostly DT fixes
 for:
 
 - OMAP: handful of DT fixes devices on newly supported hardware
 - davinci: fix 2nd EDMA channel
 - ux500: extend previous pinctrl fix to another board
 - at91: clock registration fixes, compatibility string precision
 
 And one more fix for event cleanup in drivers/bus/arm-ccn.
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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 Kevin Hilman:
 "Another round of fixes from arm-soc land, which are mostly DT fixes
  for:

   - OMAP: handful of DT fixes devices on newly supported hardware
   - davinci: fix 2nd EDMA channel
   - ux500: extend previous pinctrl fix to another board
   - at91: clock registration fixes, compatibility string precision

  And one more fix for event cleanup in drivers/bus/arm-ccn"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  bus: arm-ccn: Move event cleanup routine
  ARM: at91/dt: rm9200: fix usb clock definition
  ARM: at91: rm9200: fix clock registration
  ARM: at91/dt: sam9g20: set at91sam9g20 pllb driver
  ARM: dts: dra7-evm: Add vtt regulator support
  ARM: dts: dra7-evm: Fix spi1 mux documentation
  ARM: dts: am43x-epos-evm: Disable QSPI to prevent conflict with GPMC-NAND
  ARM: OMAP2+: gpmc: Don't complain if wait pin is used without r/w monitoring
  ARM: dts: am43xx-epos-evm: Don't use read/write wait monitoring
  ARM: dts: am437x-gp-evm: Don't use read/write wait monitoring
  ARM: dts: am437x-gp-evm: Use BCH16 ECC scheme instead of BCH8
  ARM: dts: am43x-epos-evm: Use BCH16 ECC scheme instead of BCH8
  ARM: dts: am4372: fix USB regs size
  ARM: dts: am437x-gp: switch i2c0 to 100KHz
  ARM: dts: dra7-evm: Fix 8th NAND partition's name
  ARM: dts: dra7-evm: Fix i2c3 pinmux and frequency
  ARM: ux500: disable msp2 node on Snowball
  ARM: edma: Fix configuration parsing for SoCs with multiple eDMA3 CC
  ARM: dts: set 'ti,set-rate-parent' for dpll4_m5x2 clock
2014-09-06 12:37:43 -07:00
Kevin Hilman 389710837f First AT91 fixes batch for 3.17:
- compatibility string precision
 - clock registration and USB DT fix for at91rm9200
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes

Merge "at91: fixes for 3.17 #1" from Nicols Ferre:

First AT91 fixes batch for 3.17:
- compatibility string precision
- clock registration and USB DT fix for at91rm9200

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91/dt: rm9200: fix usb clock definition
  ARM: at91: rm9200: fix clock registration
  ARM: at91/dt: sam9g20: set at91sam9g20 pllb driver

Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-09-05 13:29:17 -07:00
Linus Torvalds fb762340e5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
 "Wire up new syscalls getrandom and memfd_create"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Wire up memfd_create
  m68k: Wire up getrandom
2014-09-05 08:43:48 -07:00
Alexandre Belloni ea4fc621ad ARM: at91/dt: rm9200: fix usb clock definition
The atmel,clk-divisors property is taking 4 divisors, if less are
provided, the clock registration will fail.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-09-05 17:36:12 +02:00
Alexandre Belloni 04ffc960d7 ARM: at91: rm9200: fix clock registration
Actually register clocks from device tree when using the common clock
framework.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[nicolas.ferre@atmel.com: add at91 to function name]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-09-05 17:35:47 +02:00
Gaël PORTAY 650ca015fd ARM: at91/dt: sam9g20: set at91sam9g20 pllb driver
The at91sam9g20 SOC uses its own pllb implementation which is different
from the one inherited from at91sam9260 SOC.

Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-09-05 17:19:35 +02:00
Kevin Hilman 95f6e8142d Few fixes for omaps mostly for various devices to get them working
properly on the new am437x and dra7 hardware for several devices
 such as I2C, NAND, DDR3 and USB. There's also a clock fix for omap3.
 
 And also included are two minor cosmetic fixes that are not
 stictly fixes for the new hardware support added recently to
 downgrade a GPMC warning into a debug statement, and fix the
 confusing comments for dra7-evm spi1 mux.
 
 Note that these are all .dts changes except for a GPMC change.
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Merge tag 'omap-fixes-against-v3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v3.17-rc3" from Tony Lindgren:

Few fixes for omaps mostly for various devices to get them working
properly on the new am437x and dra7 hardware for several devices
such as I2C, NAND, DDR3 and USB. There's also a clock fix for omap3.

And also included are two minor cosmetic fixes that are not
stictly fixes for the new hardware support added recently to
downgrade a GPMC warning into a debug statement, and fix the
confusing comments for dra7-evm spi1 mux.

Note that these are all .dts changes except for a GPMC change.

* tag 'omap-fixes-against-v3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (255 commits)
  ARM: dts: dra7-evm: Add vtt regulator support
  ARM: dts: dra7-evm: Fix spi1 mux documentation
  ARM: dts: am43x-epos-evm: Disable QSPI to prevent conflict with GPMC-NAND
  ARM: OMAP2+: gpmc: Don't complain if wait pin is used without r/w monitoring
  ARM: dts: am43xx-epos-evm: Don't use read/write wait monitoring
  ARM: dts: am437x-gp-evm: Don't use read/write wait monitoring
  ARM: dts: am437x-gp-evm: Use BCH16 ECC scheme instead of BCH8
  ARM: dts: am43x-epos-evm: Use BCH16 ECC scheme instead of BCH8
  ARM: dts: am4372: fix USB regs size
  ARM: dts: am437x-gp: switch i2c0 to 100KHz
  ARM: dts: dra7-evm: Fix 8th NAND partition's name
  ARM: dts: dra7-evm: Fix i2c3 pinmux and frequency
  Linux 3.17-rc3
  ...

Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-09-05 08:05:56 -07:00
Arnd Bergmann 28c2260f13 This patch fixes setup of second EDMA channel controller
on DA850.
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Merge tag 'davinci-fixes-for-v3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes

This patch fixes setup of second EDMA channel controller
on DA850.

* tag 'davinci-fixes-for-v3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: edma: Fix configuration parsing for SoCs with multiple eDMA3 CC
2014-09-04 21:51:05 +02:00
Lokesh Vutla c7cc9ba11f ARM: dts: dra7-evm: Add vtt regulator support
DRA7 evm REV G and later boards uses a vtt regulator for DDR3
termination and this is controlled by gpio7_11. This gpio is
configured in boot loader. gpio7_11, which is only available only on
Pad A22, in previous boards, is connected only to an unused pad on
expansion connector EXP_P3 and is safe to be muxed as GPIO on all
DRA7-evm versions (without a need to spin off another dts file).

Since gpio7_11 is used to control VTT and should not be reset or kept
in idle state during boot up else VTT will be disconnected and DDR
gets corrupted. So, as part of this change, mark gpio7 as no-reset and
no-idle on init.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04 12:49:22 -07:00
Nishanth Menon 68e4d9e58d ARM: dts: dra7-evm: Fix spi1 mux documentation
While auditing the various pin ctrl configurations using the following
command:
grep PIN_ arch/arm/boot/dts/dra7-evm.dts|(while read line;
do
	v=`echo "$line" | sed -e "s/\s\s*/|/g" | cut -d '|' -f1 |
		cut -d 'x' -f2|tr [a-z] [A-Z]`;
	HEX=`echo "obase=16;ibase=16;4A003400+$v"| bc`;
	echo "$HEX ===> $line";
done)
against DRA75x/74x NDA TRM revision S(SPRUHI2S August 2014),
documentation errors were found for spi1 pinctrl. Fix the same.

Fixes: 6e58b8f1da ("ARM: dts: DRA7: Add the dts files for dra7 SoC and dra7-evm board")
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04 12:47:50 -07:00
Roger Quadros 331bbb595e ARM: dts: am43x-epos-evm: Disable QSPI to prevent conflict with GPMC-NAND
Both QSPI and GPMC-NAND share the same Pin (A8) from the SoC for Chip Select
functionality. So both can't be enabled simultaneously.

Disable QSPI node to prevent the pin conflict as well as
be similar to 3.12 release.

CC: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04 12:39:29 -07:00
Roger Quadros 2b54057c9b ARM: OMAP2+: gpmc: Don't complain if wait pin is used without r/w monitoring
For NAND read & write wait pin monitoring must be kept disabled as the
wait pin is only used to indicate NAND device ready status and not to
extend each read/write cycle.

So don't print a warning if wait pin is specified while read/write
monitoring is not in the device tree.

Sanity check wait pin number irrespective if read/write monitoring is
set or not.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04 12:39:22 -07:00
Roger Quadros e47acd9626 ARM: dts: am43xx-epos-evm: Don't use read/write wait monitoring
NAND uses wait pin only to indicate device readiness after
a block/page operation. It is not use to extend individual
read/write cycle and so read/write wait pin monitoring must
be disabled for NAND.

Add gpmc wait pin information as the NAND uses wait pin 0
for device ready indication.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04 12:39:15 -07:00
Roger Quadros 302946dee9 ARM: dts: am437x-gp-evm: Don't use read/write wait monitoring
NAND uses wait pin only to indicate device readiness after
a block/page operation. It is not use to extend individual
read/write cycle and so read/write wait pin monitoring must
be disabled for NAND.

This patch also gets rid of the below warning when NAND is
accessed for the first time.

omap_l3_noc 44000000.ocp: L3 application error: target 13 mod:1 (unclearable)

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04 12:39:08 -07:00
Roger Quadros 6b86911005 ARM: dts: am437x-gp-evm: Use BCH16 ECC scheme instead of BCH8
am437x-gp-evm uses a NAND chip with page size 4096 bytes
and spare area of 225 bytes per page.

For such a setup it is preferrable to use BCH16 ECC scheme over
BCH8. This also makes it compatible with ROM code ECC scheme so
we can boot with NAND after flashing from kernel.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04 12:39:01 -07:00
Roger Quadros db01e6c7fb ARM: dts: am43x-epos-evm: Use BCH16 ECC scheme instead of BCH8
am43x-epos-evm uses a NAND chip with page size 4096 bytes
and spare area of 225 bytes per page.

For such a setup it is preferrable to use BCH16 ECC scheme over
BCH8. This also makes it compatible with ROM code ECC scheme so
we can boot with NAND after flashing from kernel.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04 12:38:22 -07:00
Felipe Balbi 4b143f0f60 ARM: dts: am4372: fix USB regs size
Size should be 64KiB instead of 92KiB.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-03 14:48:37 -07:00
Nishanth Menon 9316641330 ARM: dts: am437x-gp: switch i2c0 to 100KHz
On the GP EVM, the ambient light sensor is limited to 100KHz on the
I2C bus.

So use 100kHz for I2C on the GP EVM due to this limitation on the
ambient light sensor.

Reported-by: Aparna Balasubramanian <aparnab@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-03 14:46:55 -07:00
Tony Lindgren 5c01d5d134 Merge branch 'for-v3.17-rc/ti-clk-dt' of github.com:t-kristo/linux-pm into fixes-rc3 2014-09-03 14:39:51 -07:00
Roger Quadros f0e9fab3bc ARM: dts: dra7-evm: Fix 8th NAND partition's name
The 8th NAND partition should be named "NAND.u-boot-env.backup1"
instead of "NAND.u-boot-env". This is to be consistent with other
TI boards as well as u-boot.

CC: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-03 14:32:35 -07:00
Roger Quadros 544d63d0f3 ARM: dts: dra7-evm: Fix i2c3 pinmux and frequency
The I2C3 pins are taken from pads E21 (GPIO6_14) and
F20 (GPIO6_15). Use the right pinmux register and mode.

Also set the I2C3 bus frequency to a safer 400KHz than
3.4Mhz.

CC: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-03 14:32:00 -07:00
Noam Camus 014018e0b4 ARC: [mm] Fix compilation breakage
Structure name and variable name were erroneously interchanged

Signed-off-by: Noam Camus <noamc@ezchip.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
[ Also removed pointless cast from "void *".  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-03 10:08:50 -07:00
Linus Torvalds 955837d8f5 arm64 fixes for -rc4
Another handful of arm64 fixes here:
 
   - A few fixes for real issues found by smatch (after Dan's talk at KS)
   - Revert the /proc/cpuinfo changes merged during the merge window.
     We've opened a can of worms here, so we need to find out where we
     stand before we change this interface.
   - Implement KSTK_ESP for compat tasks, otherwise 32-bit Android gets
     confused wondering where its [stack] has gone
   - Misc fixes (fpsimd context handling, crypto, ...)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull more arm64 fixes from Will Deacon:
 "Another handful of arm64 fixes here.  They address some issues found
  by running smatch on the arch code (ignoring the false positives) and
  also stop 32-bit Android from losing track of its stack.

  There's one additional irq migration fix in the pipeline, but it came
  in after I'd tagged and tested this set.

   - a few fixes for real issues found by smatch (after Dan's talk at KS)

   - revert the /proc/cpuinfo changes merged during the merge window.
     We've opened a can of worms here, so we need to find out where we
     stand before we change this interface.

   - implement KSTK_ESP for compat tasks, otherwise 32-bit Android gets
     confused wondering where its [stack] has gone

   - misc fixes (fpsimd context handling, crypto, ...)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  Revert "arm64: cpuinfo: print info for all CPUs"
  arm64: fix bug for reloading FPSIMD state after cpu power off
  arm64: report correct stack pointer in KSTK_ESP for compat tasks
  arm64: Add brackets around user_stack_pointer()
  arm64: perf: don't rely on layout of pt_regs when grabbing sp or pc
  arm64: ptrace: fix compat reg getter/setter return values
  arm64: ptrace: fix compat hardware watchpoint reporting
  arm64: Remove unused variable in head.S
  arm64/crypto: remove redundant update of data
2014-09-03 08:59:45 -07:00
Laurent Dufour 02a68d0503 powerpc/kvm/cma: Fix panic introduces by signed shift operation
fc95ca7284 introduces a memset in
kvmppc_alloc_hpt since the general CMA doesn't clear the memory it
allocates.

However, the size argument passed to memset is computed from a signed value
and its signed bit is extended by the cast the compiler is doing. This lead
to extremely large size value when dealing with order value >= 31, and
almost all the memory following the allocated space is cleaned. As a
consequence, the system is panicing and may even fail spawning the kdump
kernel.

This fix makes use of an unsigned value for the memset's size argument to
avoid sign extension. Among this fix, another shift operation which may
lead to signed extended value too is also fixed.

Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-03 10:34:07 +02:00
Linus Walleij dbd366fdf2 ARM: ux500: disable msp2 node on Snowball
Analogous to commit 8858d88a25
that fixed commit 70b41abc15
"ARM: ux500: move MSP pin control to the device tree"
accidentally activated MSP2, giving rise to a boot scroll
scream as the kernel attempts to probe a driver for it and
fails to obtain DMA channel 14.

For some reason I forgot to fix this on the Snowball. Fix
this up by marking the node disabled again.

Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-09-02 10:57:25 -07:00
Paolo Bonzini eebbcf6da9 Merge tag 'kvm-s390-master-20140902' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-master 2014-09-02 11:09:00 +02:00
Christian Borntraeger 1951497d90 KVM: s390/mm: Fix guest storage key corruption in ptep_set_access_flags
commit 0944fe3f4a ("s390/mm: implement software referenced bits")
triggered another paging/storage key corruption. There is an
unhandled invalid->valid pte change where we have to set the real
storage key from the pgste.
When doing paging a guest page might be swapcache or swap and when
faulted in it might be read-only and due to a parallel scan old.
An do_wp_page will make it writeable and young. Due to software
reference tracking this page was invalid and now becomes valid.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: stable@vger.kernel.org # v3.12+
2014-09-02 10:30:43 +02:00
Christian Borntraeger 3e03d4c46d KVM: s390/mm: Fix storage key corruption during swapping
Since 3.12 or more precisely  commit 0944fe3f4a ("s390/mm:
implement software referenced bits") guest storage keys get
corrupted during paging. This commit added another valid->invalid
translation for page tables - namely ptep_test_and_clear_young.
We have to transfer the storage key into the pgste in that case.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: stable@vger.kernel.org # v3.12+
2014-09-02 10:30:43 +02:00
Will Deacon 5e39977edf Revert "arm64: cpuinfo: print info for all CPUs"
It turns out that vendors are relying on the format of /proc/cpuinfo,
and we've even spotted out-of-tree hacks attempting to make it look
identical to the format used by arch/arm/. That means we can't afford to
churn this interface in mainline, so revert the recent reformatting of
the file for arm64 pending discussions on the list to find out what
people actually want.

This reverts commit d7a49086f2.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-01 15:55:22 +01:00
Leo Yan 7c68a9cc04 arm64: fix bug for reloading FPSIMD state after cpu power off
Now arm64 defers reloading FPSIMD state, but this optimization also
introduces the bug after cpu resume back from low power mode.

The reason is after the cpu has been powered off, s/w need set the
cpu's fpsimd_last_state to NULL so that it will force to reload
FPSIMD state for the thread, otherwise there has the chance to meet
the condition for both the task's fpsimd_state.cpu field contains the
id of the current cpu, and the cpu's fpsimd_last_state per-cpu variable
points to the task's fpsimd_state, so finally kernel will skip to reload
the context during it return back to userland.

Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Leo Yan <leoy@marvell.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-01 12:55:21 +01:00
Geert Uytterhoeven 4ed7800987 m68k: Wire up memfd_create
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-09-01 10:28:00 +02:00
Geert Uytterhoeven 16d7b8b992 m68k: Wire up getrandom
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-09-01 10:28:00 +02:00
Martin Schwidefsky 5da76157a4 s390/vdso: remove NULL pointer check from clock_gettime
The explicit NULL pointer check on the timespec argument is only
required for clock_getres but not for clock_gettime.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-09-01 09:56:29 +02:00
Michael Holzheu 6992860167 s390/ipl: Add missing SCSI loadparm attributes to /sys/firmware
Currently the loadparm is only supported for CCW IPL. But also for SCSI
IPL it can be specified either on the HMC load panel respectively
z/VM console or via diagnose 308.

So fix this for SCSI and add the required sysfs attributes for reading the
IPL loadparm and for setting the loadparm for re-IPL.

With this patch the following two sysfs attributes are introduced:

 - /sys/firmware/ipl/loadparm (for system that have been IPLed from SCSI)
 - /sys/firmware/reipl/fcp/loadparm

Because the loadparm is now available for SCSI and CCW it is moved
now from "struct ipl_block_ccw" to the generic "struct ipl_list_hdr".

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-09-01 09:56:29 +02:00
Linus Torvalds 05bdb8c90e Xtensa improvements for 3.17:
- support highmem on cores with aliasing data cache. Enable highmem on kc705
   by default;
 - simplify addition of new core variants (no need to modify Kconfig /
   Makefiles);
 - improve robustness of unaligned access handler and its interaction with
   window overflow/underflow exception handlers;
 - deprecate atomic and spill registers syscalls;
 - clean up Kconfig: remove orphan MATH_EMULATION, sort 'select' statements;
 - wire up renameat2 syscall.
 
 Various fixes:
 - fix address checks in dma_{alloc,free}_coherent (runtime BUG);
 - fix access to THREAD_RA/THREAD_SP/THREAD_DS (debug build breakage);
 - fix TLBTEMP_BASE_2 region handling in fast_second_level_miss (runtime
   unrecoverable exception);
 - fix a6 and a7 handling in fast_syscall_xtensa (runtime userspace register
   clobbering);
 - fix kernel/user jump out of fast_unaligned (potential runtime unrecoverabl
   exception);
 - replace termios IOCTL code definitions with constants (userspace build
   breakage).
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Merge tag 'xtensa-20140830' of git://github.com/czankel/xtensa-linux

Pull Xtensa updates from Chris Zankel:
 "Xtensa improvements for 3.17:
   - support highmem on cores with aliasing data cache.  Enable highmem
     on kc705 by default
   - simplify addition of new core variants (no need to modify Kconfig /
     Makefiles)
   - improve robustness of unaligned access handler and its interaction
     with window overflow/underflow exception handlers
   - deprecate atomic and spill registers syscalls
   - clean up Kconfig: remove orphan MATH_EMULATION, sort 'select'
     statements
   - wire up renameat2 syscall.

  Various fixes:
   - fix address checks in dma_{alloc,free}_coherent (runtime BUG)
   - fix access to THREAD_RA/THREAD_SP/THREAD_DS (debug build breakage)
   - fix TLBTEMP_BASE_2 region handling in fast_second_level_miss
     (runtime unrecoverable exception)
   - fix a6 and a7 handling in fast_syscall_xtensa (runtime userspace
     register clobbering)
   - fix kernel/user jump out of fast_unaligned (potential runtime
     unrecoverabl exception)
   - replace termios IOCTL code definitions with constants (userspace
     build breakage)"

* tag 'xtensa-20140830' of git://github.com/czankel/xtensa-linux: (25 commits)
  xtensa: deprecate fast_xtensa and fast_spill_registers syscalls
  xtensa: don't allow overflow/underflow on unaligned stack
  xtensa: fix a6 and a7 handling in fast_syscall_xtensa
  xtensa: allow single-stepping through unaligned load/store
  xtensa: move invalid unaligned instruction handler closer to its users
  xtensa: make fast_unaligned store restartable
  xtensa: add double exception fixup handler for fast_unaligned
  xtensa: fix kernel/user jump out of fast_unaligned
  xtensa: configure kc705 for highmem
  xtensa: support highmem in aliasing cache flushing code
  xtensa: support aliasing cache in kmap
  xtensa: support aliasing cache in k[un]map_atomic
  xtensa: implement clear_user_highpage and copy_user_highpage
  xtensa: fix TLBTEMP_BASE_2 region handling in fast_second_level_miss
  xtensa: allow fixmap and kmap span more than one page table
  xtensa: make fixmap region addressing grow with index
  xtensa: fix access to THREAD_RA/THREAD_SP/THREAD_DS
  xtensa: add renameat2 syscall
  xtensa: fix address checks in dma_{alloc,free}_coherent
  xtensa: replace IOCTL code definitions with constants
  ...
2014-08-31 17:08:42 -07:00
Guenter Roeck ca98565a61 unicore32: Fix build error
unicore32 builds fail with

  arch/unicore32/kernel/signal.c: In function ‘setup_frame’:
  arch/unicore32/kernel/signal.c:257: error: ‘usig’ undeclared (first use in this function)
  arch/unicore32/kernel/signal.c:279: error: ‘usig’ undeclared (first use in this function)
  arch/unicore32/kernel/signal.c: In function ‘handle_signal’:
  arch/unicore32/kernel/signal.c:306: warning: unused variable ‘tsk’
  arch/unicore32/kernel/signal.c: In function ‘do_signal’:
  arch/unicore32/kernel/signal.c:376: error: implicit declaration of function ‘get_signsl’
  make[1]: *** [arch/unicore32/kernel/signal.o] Error 1
  make: *** [arch/unicore32/kernel/signal.o] Error 2

Bisect points to commit 649671c90e ("unicore32: Use get_signal()
signal_setup_done()").

This code never even compiled.  Reverting the patch does not work, since
previously used functions no longer exist, so try to fix it up.  Compile
tested only.

Fixes: 649671c90e ("unicore32: Use get_signal() signal_setup_done()")
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-31 17:08:12 -07:00
Linus Torvalds 94559a4a81 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Various assorted fixes:

   - a couple of patches from Mark Rutland to resolve an errata with
     Cortex-A15 CPUs.
   - fix cpuidle for the CPU part ID changes in the last merge window
   - add support for a relocation which ARM binutils is generating in
     some circumstances"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8130/1: cpuidle/cpuidle-big_little: fix reading cpu id part number
  ARM: 8129/1: errata: work around Cortex-A15 erratum 830321 using dummy strex
  ARM: 8128/1: abort: don't clear the exclusive monitors
  ARM: 8127/1: module: add support for R_ARM_TARGET1 relocations
2014-08-31 17:02:57 -07:00
Linus Torvalds 19ed3eb975 ARM: SoC fixes for 3.17-rc
Here's the weekly batch of fixes from arm-soc.
 
 The delta is a largeish negative delta, due to revert of SMP support for Broadcom's
 STB SoC -- it was accidentally merged before some issues had been addressed, so they
 will make a new attempt for 3.18. I didn't see a need for a full revert of the whole
 platform due to this, we're keeping the rest enabled.
 
 The rest is mostly:
 
 * A handful of DT fixes for i.MX (Hummingboard/Cubox-i in particular)
 * Some MTD/NAND fixes for OMAP
 * Minor DT fixes for shmobile
 * Warning fix for UP builds on vexpress/spc
 
 There's also a couple of patches that wires up hwmod on TI's DRA7 SoC
 so it can boot. Drivers and the rest had landed for 3.17, and it's small
 and isolated so it made sense to pick up now even if it's not a bugfix.
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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 Olof Johansson:
 "Here's the weekly batch of fixes from arm-soc.

  The delta is a largeish negative delta, due to revert of SMP support
  for Broadcom's STB SoC -- it was accidentally merged before some
  issues had been addressed, so they will make a new attempt for 3.18.
  I didn't see a need for a full revert of the whole platform due to
  this, we're keeping the rest enabled.

  The rest is mostly:

   - a handful of DT fixes for i.MX (Hummingboard/Cubox-i in particular)
   - some MTD/NAND fixes for OMAP
   - minor DT fixes for shmobile
   - warning fix for UP builds on vexpress/spc

  There's also a couple of patches that wires up hwmod on TI's DRA7 SoC
  so it can boot.  Drivers and the rest had landed for 3.17, and it's
  small and isolated so it made sense to pick up now even if it's not a
  bugfix"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
  vexpress/spc: fix a build warning on array bounds
  ARM: DRA7: hwmod: Add dra74x and dra72x specific ocp interface lists
  ARM: DRA7: Add support for soc_is_dra74x() and soc_is_dra72x() variants
  MAINTAINERS: catch special Rockchip code locations
  ARM: dts: microsom-ar8035: MDIO pad must be set open drain
  ARM: dts: omap54xx-clocks: Fix the l3 and l4 clock rates
  ARM: brcmstb: revert SMP support
  ARM: OMAP2+: hwmod: Rearm wake-up interrupts for DT when MUSB is idled
  ARM: dts: Enable UART wake-up events for beagleboard
  ARM: dts: Remove twl6030 clk32g "regulator"
  ARM: OMAP2+: omap_device: remove warning that clk alias already exists
  ARM: OMAP: fix %d confusingly prefixed with 0x in format string
  ARM: dts: DRA7: fix interrupt-cells for GPIO
  mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc()
  ARM: dts: omap3430-sdp: Revert to using software ECC for NAND
  ARM: OMAP2+: GPMC: Support Software ECC scheme via DT
  mtd: nand: omap: Revert to using software ECC by default
  ARM: dts: hummingboard/cubox-i: change SPDIF output to be more descriptive
  ARM: dts: hummingboard/cubox-i: add USB OC pinctrl configuration
  ARM: shmobile: r8a7791: add missing 0x0100 for SDCKCR
  ...
2014-08-31 17:01:19 -07:00
Alex Shi e160cc1768 vexpress/spc: fix a build warning on array bounds
With ARCH_VEXPRESS_SPC option, kernel build has the following
warning:

arch/arm/mach-vexpress/spc.c: In function ‘ve_spc_clk_init’:
arch/arm/mach-vexpress/spc.c:431:38: warning: array subscript is below array bounds [-Warray-bounds]
  struct ve_spc_opp *opps = info->opps[cluster];
                                      ^
since 'cluster' maybe '-1' in UP system. This patch does a active
checking to fix this issue.

Signed-off-by: Alex Shi <alex.shi@linaro.org>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-31 10:22:10 -07:00
Olof Johansson 98fd150836 Add basic subarchitecture support for the DRA72x and DRA74x. These
are OMAP2+ derivative SoCs.  This should be low-risk to existing OMAP
 platforms.
 
 Basic build, boot, and PM test logs are available here:
 
 http://www.pwsan.com/omap/testlogs/hwmod-a-early-v3.17-rc/20140827194314/
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Merge tag 'for-v3.17-rc/omap-dra72x-d74x-support-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

Pull "ARM: OMAP2+: DRA72x/DRA74x basic support" from Tony Lindgren:

Add basic subarchitecture support for the DRA72x and DRA74x.  These
are OMAP2+ derivative SoCs.  This should be low-risk to existing OMAP
platforms.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/hwmod-a-early-v3.17-rc/20140827194314/

* tag 'for-v3.17-rc/omap-dra72x-d74x-support-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
  ARM: DRA7: hwmod: Add dra74x and dra72x specific ocp interface lists
  ARM: DRA7: Add support for soc_is_dra74x() and soc_is_dra72x() variants

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-31 10:19:43 -07:00
Linus Torvalds fd5984d7c8 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "One patch to avoid assigning interrupts we don't actually have on
  non-PC platforms, and two patches that addresses bugs in the new
  IOAPIC assignment code"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, irq, PCI: Keep IRQ assignment for runtime power management
  x86: irq: Fix bug in setting IOAPIC pin attributes
  x86: Fix non-PC platform kernel crash on boot due to NULL dereference
2014-08-29 17:22:27 -07:00
Linus Torvalds 10f3291a1d Merge branch 'akpm' (fixes from Andrew Morton)
Merge patches from Andrew Morton:
 "22 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
  kexec: purgatory: add clean-up for purgatory directory
  Documentation/kdump/kdump.txt: add ARM description
  flush_icache_range: export symbol to fix build errors
  tools: selftests: fix build issue with make kselftests target
  ocfs2: quorum: add a log for node not fenced
  ocfs2: o2net: set tcp user timeout to max value
  ocfs2: o2net: don't shutdown connection when idle timeout
  ocfs2: do not write error flag to user structure we cannot copy from/to
  x86/purgatory: use approprate -m64/-32 build flag for arch/x86/purgatory
  drivers/rtc/rtc-s5m.c: re-add support for devices without irq specified
  xattr: fix check for simultaneous glibc header inclusion
  kexec: remove CONFIG_KEXEC dependency on crypto
  kexec: create a new config option CONFIG_KEXEC_FILE for new syscall
  x86,mm: fix pte_special versus pte_numa
  hugetlb_cgroup: use lockdep_assert_held rather than spin_is_locked
  mm/zpool: use prefixed module loading
  zram: fix incorrect stat with failed_reads
  lib: turn CONFIG_STACKTRACE into an actual option.
  mm: actually clear pmd_numa before invalidating
  memblock, memhotplug: fix wrong type in memblock_find_in_range_node().
  ...
2014-08-29 16:28:29 -07:00