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2013-02-09Merge tag 'davinci-for-v3.9/dt-2' of ↵Olof Johansson
git://gitorious.org/linux-davinci/linux-davinci into next/dt From Sekhar Nori: Second round of DT updates for DaVinci. This pull request adds support for I2C0 and watchdog timer for DA850 EVM booting using device tree. It also enables machine reboot when using device tree. * tag 'davinci-for-v3.9/dt-2' of git://gitorious.org/linux-davinci/linux-davinci: ARM: davinci: da850 DT: add support for machine reboot ARM: davinci: da850: add wdt DT node ARM: davinci: da850: add DT node for I2C0
2013-02-09Merge tag 'at91-dt' of git://github.com/at91linux/linux-at91 into next/dtOlof Johansson
From Nicolas Ferre: Update to DT files for AT91: - adding the watchdog to Animeo IP board - some more DT support for at91rm9200 peripherals * tag 'at91-dt' of git://github.com/at91linux/linux-at91: ARM: at91: add EMAC bindings to RM9200 DT ARM: at91: add SSC bindings to RM9200 DT ARM: at91: add MMC bindings to RM9200 DT ARM: at91: Animeo IP: enable watchdog support Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-09ARM: davinci: da850 DT: add support for machine rebootKumar, Anil
Update the da8xx_restart() function to support machine reboot when booting using DT. Have the function search for the watchdog platform device instead of always using "da8xx_wdt_device" which is never registered in DT case. While at it, also make da8xx_wdt_device static since there is no need for it to be globally visible. Tested machine reboot with both DT and non-DT boot on DA850 EVM. Signed-off-by: Kumar, Anil <anilkumar.v@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-02-09ARM: davinci: da850: add wdt DT nodeKumar, Anil
Add da850 wdt DT node. Add OF_DEV_AUXDATA for wdt driver to use wdt clock. Signed-off-by: Kumar, Anil <anilkumar.v@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-02-09ARM: davinci: da850: add DT node for I2C0Vishwanathrao Badarkhe, Manish
Add I2C0 device tree and pin muxing information to da850-evm. Also, add OF_DEV_AUXDATA for I2C0 controller driver in da850 board dt file to use I2C0 clock. Verified i2c0 node gets created in sys class interface as "/sys/class/i2c-dev/i2c-0/subsystem/i2c-0". nsekhar@ti.com: tested using i2cdetect and i2cdump. Signed-off-by: Vishwanathrao Badarkhe, Manish <manishv.b@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-02-07ARM: at91: add EMAC bindings to RM9200 DTJoachim Eastwood
Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-02-07ARM: at91: add SSC bindings to RM9200 DTJoachim Eastwood
Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-02-07ARM: at91: add MMC bindings to RM9200 DTJoachim Eastwood
Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-02-07ARM: at91: Animeo IP: enable watchdog supportJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Sylvain FARGIER <sylvain.fargier@somfy.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-02-05Merge tag 'tegra-for-3.9-dt' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/dt From Stephen Warren: ARM: tegra: device tree updates Numerous updates to the various Tegra device trees are made: * Addition of NVIDIA Beaver (Tegra30) and Toradex Colibri T20 and Iris carrier boards. * Enablement of the HDMI connector on most boards. * Enablement of the keyboard controller on a few boards. * Addition of the AC'97 controller to Tegra20. * Addition of a GPIO poweroff node for TrimSlice. * Changes to support the new "high speed UART" (DMA-capable) driver for Tegra serial ports, and enablement for Cardhu's UART C. * A few cleanups, such as compatible flag fixes, node renames, node ordering fixes, commonizing properties into SoC .dtsi files, etc.. This pull request is based on (most of) the previous pull request with tag tegra-for-3.9-soc-t114. * tag 'tegra-for-3.9-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (22 commits) ARM: dt: tegra30: Rename "smmu" to "iommu" ARM: dt: tegra20: Rename "gart" to "iommu" ARM: tegra: move serial clock-frequency attr into the Tegra30 dtsi ARM: tegra: Add Toradex Iris carrier board DT with T20 512MB COM ARM: tegra: Add Colibri T20 512MB COM device tree ARM: tegra: move serial clock-frequency attr into the Tegra20 dtsi ARM: tegra: harmony: enable keyboard in DT ARM: tegra: whistler: enable keyboard in DT ARM: tegra: cardhu: register UARTC ARM: tegra: seaboard: enable keyboard in DT ARM: tegra: add DT entry for KBC controller ARM: tegra: swap cache-/interrupt-ctrlr nodes in DT ASoC: tegra: add ac97 host controller to device tree ARM: DT: tegra: Add Tegra30 Beaver board support ARM: DT: tegra: Add board level compatible properties ARM: tegra: paz00: enable HDMI port ARM: tegra: ventana: enable HDMI port ARM: tegra: seaboard: enable HDMI port ARM: tegra: trimslice: add gpio-poweroff node to DT ARM: DT: tegra: Unify the description of Tegra20 boards ...
2013-02-05Merge branch 'next/soc' into next/dtOlof Johansson
2013-02-05ARM: tegra: remove empty tegra_smp_init_cpus()Olof Johansson
Based on two separate cleanup branches, it's now empty and can be removed. Signed-off-by: Olof Johansson <olof@lixom.net> Cc: Stephen Warren <swarren@wwwdotorg.org>
2013-02-05Merge tag 'tegra-for-3.9-soc-t114' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc From Stepen Warren: ARM: tegra: add Tegra114 SoC support This pull request adds initial support for the Tegra114 SoC, which integrates a quad-core ARM Cortex-A15 CPU. I'm proud to observe that we posted the initial versions of these patches before the final official announcement of this chip. These patches are enough to boot with a UART-based console, support the Dalmore and Pluto reference/evaluation boards, instantiate the GPIO and pinctrl drivers, and enable a cpuidle state. As yet, no clocks or storage devices are supported, but patches for those will follow shortly. This pull request is based on (most of) the previous pull request with tag tegra-for-3.9-soc-cpuidle, followed by a merge of the previous pull request with tag tegra-for-3.9-scu-base-rework. * tag 'tegra-for-3.9-soc-t114' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (24 commits) ARM: DT: tegra114: add pinmux DT entry ARM: DT: tegra114: add GPIO DT entry ARM: tegra114: select PINCTRL for Tegra114 SoC ARM: tegra: add Tegra114 ARM_CPUIDLE_WFI_STATE support ARM: tegra: Add SMMU entry to Tegra114 DT ARM: tegra: add AHB entry to Tegra114 DT ARM: tegra: Add initial support for Tegra114 SoC. ARM: dt: tegra114: Add new board, Pluto ARM: dt: tegra114: Add new board, Dalmore ARM: dt: tegra114: Add new SoC base, Tegra114 SoC ARM: tegra: fuse: Add chip ID Tegra114 0x35 ARM: OMAP: Make use of available scu_a9_get_base() interface ARM: tegra: Skip scu_enable(scu_base) if not Cortex A9 ARM: Add API to detect SCU base address from CP15 ARM: tegra: Use DT /cpu node to detect number of CPU core ARM: tegra: Add CPU nodes to Tegra30 device tree ARM: tegra: Add CPU nodes to Tegra20 device tree ARM: perf: simplify __hw_perf_event_init err handling ARM: perf: remove unnecessary checks for idx < 0 ARM: perf: handle armpmu_register failing ... Signed-off-by: Olof Johansson <olof@lixom.net> Remove/add conflict in arch/arm/mach-tegra/common.c resolved. Remove/remove conflict in arch/arm/mach-tegra/platsmp.c. Leave the empty stub function for now since removing it in the merge commit is confusing; will be cleaned up in a separate commit. # # It looks like you may be committing a merge. # If this is not correct, please remove the file # .git/MERGE_HEAD # and try again.
2013-02-05Merge tag 'tegra-for-3.9-soc-cpuidle' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc From Stephen Warren: ARM: tegra: cpuidle enhancements This pull request implements a new "LP2" cpuidle state for Tegra20, which makes use of the couple cpuidle feature. It is based on (most of) the previous pull request, with tag tegra-for-3.9-soc-usb. * tag 'tegra-for-3.9-soc-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra20: cpuidle: apply coupled cpuidle for powered-down mode ARM: tegra20: flowctrl: add support for cpu_suspend_enter/exit clk: tegra20: Implementing CPU low-power function for tegra_cpu_car_ops ARM: tegra20: cpuidle: add powered-down state for secondary CPU ARM: tegra: add pending SGI checking API Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-05Merge tag 'tegra-for-3.9-soc-usb' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc From Stephen Warren: ARM: tegra: USB driver cleanup The Tegra USB driver has a number of issues: 1) The PHY driver isn't a true platform device, and doesn't implement the standard USB PHY API. 2) struct device instance numbers were used to make decisions in the driver, rather than being parameterized by DT or platform data. This pull request solves issue (2), and lays the groundwork for solving issue (1). The work on issue (1) involved introducing new DT nodes for the USB PHYs, which in turn interacted with the Tegra common clock framework changes, due to the move of clock lookups into device tree. Hence, these USB driver changes are taken through the Tegra tree with acks from USB maintainers. This pull request is based on the previous pull request, with tag tegra-for-3.9-soc-ccf. * tag 'tegra-for-3.9-soc-usb' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: usb: host: tegra: make use of PHY pointer of HCD ARM: tegra: Add reset GPIO information to PHY DT node usb: host: tegra: don't touch EMC clock usb: add APIs to access host registers from Tegra PHY USB: PHY: tegra: Get rid of instance number to differentiate PHY type USB: PHY: tegra: get rid of instance number to differentiate legacy controller ARM: tegra: add clocks properties to USB PHY nodes ARM: tegra: add DT nodes for Tegra USB PHY usb: phy: remove unused APIs from Tegra PHY. usb: host: tegra: Resetting PORT0 based on information received via DT. ARM: tegra: Add new DT property to USB node. usb: phy: use kzalloc to allocate struct tegra_usb_phy ARM: tegra: remove USB address related macros from iomap.h
2013-02-05Merge tag 'tegra-for-3.9-soc-ccf' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc From Stephen Warren: ARM: tegra: Common Clock Framework rework Tegra already supports the common clock framework, but had issues: 1) The clock driver was located in arch/arm/mach-tegra/ rather than drivers/clk/. 2) A single "Tegra clock" type was implemented, rather than separate clock types for PLL, mux, divider, ... type in HW. 3) Clock lookups by device drivers were still driven by device name and connection ID, rather than through device tree. This pull request solves all three issues. This required some DT changes to add clocks properties, and driver changes to request clocks more "correctly". Finally, this rework allows all AUXDATA to be removed from Tegra board files, and various duplicate clock lookup entries to be removed from the driver. This pull request is based on the previous pull request, with tag tegra-for-3.9-cleanup. * tag 'tegra-for-3.9-soc-ccf' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (31 commits) clk: tegra30: remove unused TEGRA_CLK_DUPLICATE()s clk: tegra20: remove unused TEGRA_CLK_DUPLICATE()s ARM: tegra30: remove auxdata ARM: tegra20: remove auxdata ASoC: tegra: remove auxdata staging: nvec: remove use of clk_get_sys ARM: tegra: paz00: add clock information to DT ARM: tegra: add clock properties to Tegra30 DT ARM: tegra: add clock properties to Tegra20 DT spi: tegra: do not use clock name to get clock ARM: tegra: remove legacy clock code ARM: tegra: migrate to new clock code clk: tegra: add clock support for Tegra30 clk: tegra: add clock support for Tegra20 clk: tegra: add Tegra specific clocks ARM: tegra: define Tegra30 CAR binding ARM: tegra: define Tegra20 CAR binding ARM: tegra: move tegra_cpu_car.h to linux/clk/tegra.h ARM: tegra: add function to read chipid ARM: tegra: fix compile error when disable CPU_IDLE ... Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/mach-tegra/board-dt-tegra20.c arch/arm/mach-tegra/board-dt-tegra30.c arch/arm/mach-tegra/common.c arch/arm/mach-tegra/platsmp.c drivers/clocksource/Makefile
2013-02-05Merge tag 'renesas-soc3-for-v3.9' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc From Simon Horman: Third round of Renesas ARM-based SoC changes for v3.9 A fix for r8a7779 clocks. * tag 'renesas-soc3-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: r8a7779: Correct TMU clock support
2013-02-05ARM: nomadik: fix OF compilation regressionLinus Walleij
The Nomadik Device Tree patch series accidentally selected OF instead of USE_OF which led to problems during compile: arch/arm/kernel/devtree.c: In function 'arm_dt_memblock_reserve': /home/elinwal/linux-arm-soc/arch/arm/kernel/devtree.c:43:7: error: 'initial_boot_params' undeclared (first use in this function) (etc). This fixes it up by selecting USE_OF instead. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-04Merge tag 'v3.8-rc6' into next/dtOlof Johansson
Linux 3.8-rc6
2013-02-04Merge tag 'drivers_for_v3.9' of git://git.infradead.org/users/jcooper/linux ↵Olof Johansson
into next/soc From Jason Cooper: mvebu drivers for v3.9 - use rtc-mv in mvebu armv7 SoCs - add pci-e hotplug for kirkwood Depends on: - tags/mvebu_fixes_for_v3.8-rc6 * tag 'drivers_for_v3.9' of git://git.infradead.org/users/jcooper/linux: cpuidle: kirkwood: Move out of mach directory rtc: Add support of rtc-mv for MVEBU SoCs ARM: Kirkwood: Support basic hotplug for PCI-E arm: mvebu: i2c come back in defconfig arm: plat-orion: fix printing of "MPP config unavailable on this hardware" Dove: activate GPIO interrupts in DT
2013-02-04Merge tag 'v3.8-rc6' into next/socOlof Johansson
Linux 3.8-rc6
2013-02-04Merge tag 'imx6q-cpudile-3.9' of ↵Olof Johansson
git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc From Shawn Guo: imx6q cpuidle support for 3.9 - It's based on imx-cleanup-3.9 to avoid conflicts. * tag 'imx6q-cpudile-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: imx6q: support WAIT mode using cpuidle ARM: imx: move imx6q_cpuidle_driver into a separate file ARM: imx: mask gpc interrupts initially ARM: imx: return zero in case next event gets a large increment ARM: imx: Remove mx508 support ARM: imx: Remove mach-mx51_3ds board ARM: imx: use debug_ll_io_init() for imx6q ARM: imx: remove unused imx6q_clock_map_io() ARM: mach-imx: Kconfig: Do not select Babbage for MACH_IMX51_DT Signed-off-by: Olof Johansson <olof@lixom.net> Still, two delete/change conflicts caused by imx/cleanup: arch/arm/mach-imx/mach-mx50_rdp.c arch/arm/mach-imx/mach-mx51_3ds.c
2013-02-04ARM: MARCO: fix the build issue due to gic-vic-to-irqchip moveBarry Song
Fix the issue: tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git next/soc head: 6ed05a2aab3763b58922247543d7079106b254dc commit: af70fdc947dbe835acc26c6ee9e8e930f38935f8 [4/8] Merge branch 'marco-timer-cleanup-rebase' of git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into next/soc config: make ARCH=arm prima2_defconfig All error/warnings: >> arch/arm/mach-prima2/platsmp.c:20:30: fatal error: asm/hardware/gic.h: No such file or directory compilation terminated. -- >> arch/arm/mach-prima2/common.c:15:30: fatal error: asm/hardware/gic.h: No such file or directory compilation terminated. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Xie ChanglongX <changlongx.xie@intel.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-05ARM: shmobile: r8a7779: Correct TMU clock supportSimon Horman
During code review it was noticed that the clock value for TMU01 was incorrect and the value for TMU02 was missing. For reference: As of 3.8-rc6 there are no in-tree consumes of these clocks. Reported-by: Denis Oliver Kropp <dok@directfb.org> Reviewed-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-31Merge tag 'renesas-soc2-for-v3.9' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc From Simon Horman: Second round of Renesas ARM-based SoC changes for v3.9 * Changes to allow unplugging of CPU0 by Ulrich Hecht. * Changes to add reg and device_type properties to cpus device trees entries by Simon Horman. * tag 'renesas-soc2-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: mach-shmobile: sh73a0: allow unplugging of CPU0 ARM: mach-shmobile: add shmobile_cpu_disable_any() ARM: mach-shmobile: emev2: Add reg and device_type properties to cpus ARM: mach-shmobile: sh73a0: Add reg and device_type properties to cpus Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-01Linux 3.8-rc6v3.8-rc6Linus Torvalds
2013-02-01Merge tag 'dm-3.8-fixes-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm Pull more device-mapper fixes from Alasdair G Kergon: "A fix for stacked dm thin devices and a fix for the new dm WRITE SAME support." * tag 'dm-3.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: dm: fix write same requests counting dm thin: fix queue limits stacking
2013-02-01Merge branch 'for-3.8/upstream-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid PullHID fixes from Jiri Kosina: - fix i2c-hid and hidraw interaction, by Benjamin Tissoires - a quirk to make a particular device (Formosa IR receiver) work properly, by Nicholas Santos * 'for-3.8/upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: i2c-hid: fix i2c_hid_output_raw_report HID: usbhid: quirk for Formosa IR receiver HID: remove x bit from sensor doc
2013-02-01Merge tag 'nfs-for-3.8-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull NFS client bugfixes from Trond Myklebust: - Error reporting in nfs_xdev_mount incorrectly maps all errors to ENOMEM - Fix an NFSv4 refcounting issue - Fix a mount failure when the server reboots during NFSv4 trunking discovery - NFSv4.1 mounts may need to run the lease recovery thread. - Don't silently fail setattr() requests on mountpoints - Fix a SUNRPC socket/transport livelock and priority queue issue - We must handle NFS4ERR_DELAY when resetting the NFSv4.1 session. * tag 'nfs-for-3.8-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFSv4.1: Handle NFS4ERR_DELAY when resetting the NFSv4.1 session SUNRPC: When changing the queue priority, ensure that we change the owner NFS: Don't silently fail setattr() requests on mountpoints NFSv4.1: Ensure that nfs41_walk_client_list() does start lease recovery NFSv4: Fix NFSv4 trunking discovery NFSv4: Fix NFSv4 reference counting for trunked sessions NFS: Fix error reporting in nfs_xdev_mount
2013-02-01Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS updates from Ralf Baechle: "A number of fixes all across the MIPS tree. No area is particularly standing out and things have cooled down quite nicely for a release." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Function tracer: Fix broken function tracing mips: Move __virt_addr_valid() to a place for MIPS 64 MIPS: Netlogic: Fix UP compilation on XLR MIPS: AR71xx: Fix AR71XX_PCI_MEM_SIZE MIPS: AR724x: Fix AR724X_PCI_MEM_SIZE MIPS: Lantiq: Fix cp0_perfcount_irq mapping MIPS: DSP: Fix DSP mask for registers. MIPS: Fix build failure by adding definition of pfn_pmd(). MIPS: Octeon: Fix warning. MIPS: delay.c: Check BITS_PER_LONG instead of __SIZEOF_LONG__ MIPS: PNX833x: Fix comment. MIPS: Add struct p_format to union mips_instruction. MIPS: Export <asm/break.h>. MIPS: BCM47xx: Enable SSB prerequisite SSB_DRIVER_PCICORE. MIPS: BCM47xx: Select GPIOLIB for BCMA on bcm47xx platform MIPS: vpe.c: Fix null pointer dereference in print arguments.
2013-01-31cpuidle: kirkwood: Move out of mach directoryAndrew Lunn
Move the Kirkwood cpuidle driver out of arch/arm/mach-kirkwood and into drivers/cpuidle. Convert the driver into a platform driver. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-31HID: i2c-hid: fix i2c_hid_output_raw_reportBenjamin Tissoires
i2c_hid_output_raw_report is used by hidraw to forward set_report requests. The current implementation of i2c_hid_set_report needs to take the report_id as an argument. The report_id is stored in the first byte of the buffer in argument of i2c_hid_output_raw_report. Not removing the report_id from the given buffer adds this byte 2 times in the command, leading to a non working command. Reported-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-01-31MIPS: Function tracer: Fix broken function tracingAl Cooper
Function tracing is currently broken for all 32 bit MIPS platforms. When tracing is enabled, the kernel immediately hangs on boot. This is a result of commit b732d439cb43336cd6d7e804ecb2c81193ef63b0 that changes the kernel/trace/Kconfig file so that is no longer forces FRAME_POINTER when FUNCTION_TRACING is enabled. MIPS frame pointers are generally considered to be useless because they cannot be used to unwind the stack. Unfortunately the MIPS function tracing code has bugs that are masked by the use of frame pointers. This commit fixes the bugs so that MIPS frame pointers don't need to be enabled. The bugs are a result of the odd calling sequence used to call the trace routine. This calling sequence is inserted into every traceable function when the tracing CONFIG option is enabled. This sequence is generated for 32bit MIPS platforms by the compiler via the "-pg" flag. Part of the sequence is "addiu sp,sp,-8" in the delay slot after every call to the trace routine "_mcount" (some legacy thing where 2 arguments used to be pushed on the stack). The _mcount routine is expected to adjust the sp by +8 before returning. So when not disabled, the original jalr and addiu will be there, so _mcount has to adjust sp. The problem is that when tracing is disabled for a function, the "jalr _mcount" instruction is replaced with a nop, but the "addiu sp,sp,-8" is still executed and the stack pointer is left trashed. When frame pointers are enabled the problem is masked because any access to the stack is done through the frame pointer and the stack pointer is restored from the frame pointer when the function returns. This patch writes two nops starting at the address of the "jalr _mcount" instruction whenever tracing is disabled. This means that the "addiu sp,sp.-8" will be converted to a nop along with the "jalr". When disabled, there will be two nops. This is SMP safe because the first time this happens is during ftrace_init() which is before any other processor has been started. Subsequent calls to enable/disable tracing when other CPUs ARE running will still be safe because the enable will only change the first nop to a "jalr" and the disable, while writing 2 nops, will only be changing the "jalr". This patch also stops using stop_machine() to call the tracer enable/disable routines and calls them directly because the routines are SMP safe. When the kernel first boots we have to be able to handle the gcc generated jalr, addui sequence until ftrace_init gets a chance to run and change the sequence. At this point mcount just adjusts the stack and returns. When ftrace_init runs, we convert the jalr/addui to nops. Then whenever tracing is enabled we convert the first nop to a "jalr mcount+8". The mcount+8 entry point skips the stack adjust. [ralf@linux-mips.org: Folded in Steven Rostedt's build fix.] Signed-off-by: Al Cooper <alcooperx@gmail.com> Cc: rostedt@goodmis.org Cc: ddaney.cavm@gmail.com Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/4806/ Patchwork: https://patchwork.linux-mips.org/patch/4841/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-31dm: fix write same requests countingAlasdair G Kergon
When processing write same requests, fix dm to send the configured number of WRITE SAME requests to the target rather than the number of discards, which is not always the same. Device-mapper WRITE SAME support was introduced by commit 23508a96cd2e857d57044a2ed7d305f2d9daf441 ("dm: add WRITE SAME support"). Signed-off-by: Alasdair G Kergon <agk@redhat.com> Acked-by: Mike Snitzer <snitzer@redhat.com>
2013-01-31mips: Move __virt_addr_valid() to a place for MIPS 64Steven Rostedt
Commit d3ce88431892 "MIPS: Fix modpost error in modules attepting to use virt_addr_valid()" moved __virt_addr_valid() from a macro in a header file to a function in ioremap.c. But ioremap.c is only compiled for MIPS 32, and not for MIPS 64. When compiling for my yeeloong2, which supposedly supports hibernation, which compiles kernel/power/snapshot.c which calls virt_addr_valid(), I got this error: LD init/built-in.o kernel/built-in.o: In function `memory_bm_free': snapshot.c:(.text+0x4c9c4): undefined reference to `__virt_addr_valid' snapshot.c:(.text+0x4ca58): undefined reference to `__virt_addr_valid' kernel/built-in.o: In function `snapshot_write_next': (.text+0x4e44c): undefined reference to `__virt_addr_valid' kernel/built-in.o: In function `snapshot_write_next': (.text+0x4e890): undefined reference to `__virt_addr_valid' make[1]: *** [vmlinux] Error 1 make: *** [sub-make] Error 2 I suspect that __virt_addr_valid() is fine for mips 64. I moved it to mmap.c such that it gets compiled for mips 64 and 32. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4842/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-31dm thin: fix queue limits stackingMike Snitzer
thin_io_hints() is blindly copying the queue limits from the thin-pool which can lead to incorrect limits being set. The fix here simply deletes the thin_io_hints() hook which leaves the existing stacking infrastructure to set the limits correctly. When a thin-pool uses an MD device for the data device a thin device from the thin-pool must respect MD's constraints about disallowing a bio from spanning multiple chunks. Otherwise we can see problems. If the raid0 chunksize is 1152K and thin-pool chunksize is 256K I see the following md/raid0 error (with extra debug tracing added to thin_endio) when mkfs.xfs is executed against the thin device: md/raid0:md99: make_request bug: can't convert block across chunks or bigger than 1152k 6688 127 device-mapper: thin: bio sector=2080 err=-5 bi_size=130560 bi_rw=17 bi_vcnt=32 bi_idx=0 This extra DM debugging shows that the failing bio is spanning across the first and second logical 1152K chunk (sector 2080 + 255 takes the bio beyond the first chunk's boundary of sector 2304). So the bio splitting that DM is doing clearly isn't respecting the MD limits. max_hw_sectors_kb is 127 for both the thin-pool and thin device (queue_max_hw_sectors returns 255 so we'll excuse sysfs's lack of precision). So this explains why bi_size is 130560. But the thin device's max_hw_sectors_kb should be 4 (PAGE_SIZE) given that it doesn't have a .merge function (for bio_add_page to consult indirectly via dm_merge_bvec) yet the thin-pool does sit above an MD device that has a compulsory merge_bvec_fn. This scenario is exactly why DM must resort to sending single PAGE_SIZE bios to the underlying layer. Some additional context for this is available in the header for commit 8cbeb67a ("dm: avoid unsupported spanning of md stripe boundaries"). Long story short, the reason a thin device doesn't properly get configured to have a max_hw_sectors_kb of 4 (PAGE_SIZE) is that thin_io_hints() is blindly copying the queue limits from the thin-pool device directly to the thin device's queue limits. Fix this by eliminating thin_io_hints. Doing so is safe because the block layer's queue limits stacking already enables the upper level thin device to inherit the thin-pool device's discard and minimum_io_size and optimal_io_size limits that get set in pool_io_hints. But avoiding the queue limits copy allows the thin and thin-pool limits to be different where it is important, namely max_hw_sectors_kb. Reported-by: Daniel Browning <db@kavod.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2013-01-31Merge branch 'x86-efi-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 EFI fixes from Peter Anvin: "This is a collection of fixes for the EFI support. The controversial bit here is a set of patches which bumps the boot protocol version as part of fixing some serious problems with the EFI handover protocol, used when booting under EFI using a bootloader as opposed to directly from EFI. These changes should also make it a lot saner to support cross-mode 32/64-bit EFI booting in the future. Getting these changes into 3.8 means we avoid presenting an inconsistent ABI to bootloaders. Other changes are display detection and fixing efivarfs." * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, efi: remove attribute check from setup_efi_pci x86, build: Dynamically find entry points in compressed startup code x86, efi: Fix PCI ROM handing in EFI boot stub, in 32-bit mode x86, efi: Fix 32-bit EFI handover protocol entry point x86, efi: Fix display detection in EFI boot stub x86, boot: Define the 2.12 bzImage boot protocol x86/boot: Fix minor fd leakage in tools/relocs.c x86, efi: Set runtime_version to the EFI spec revision x86, efi: fix 32-bit warnings in setup_efi_pci() efivarfs: Delete dentry from dcache in efivarfs_file_write() efivarfs: Never return ENOENT from firmware efi, x86: Pass a proper identity mapping in efi_call_phys_prelog efivarfs: Drop link count of the right inode
2013-01-31Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Peter Anvin: "This is a collection of miscellaneous fixes, the most important one is the fix for the Samsung laptop bricking issue (auto-blacklisting the samsung-laptop driver); the efi_enabled() changes you see below are prerequisites for that fix. The other issues fixed are booting on OLPC XO-1.5, an UV fix, NMI debugging, and requiring CAP_SYS_RAWIO for MSR references, just as with I/O port references." * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: samsung-laptop: Disable on EFI hardware efi: Make 'efi_enabled' a function to query EFI facilities smp: Fix SMP function call empty cpu mask race x86/msr: Add capabilities check x86/dma-debug: Bump PREALLOC_DMA_DEBUG_ENTRIES x86/olpc: Fix olpc-xo1-sci.c build errors arch/x86/platform/uv: Fix incorrect tlb flush all issue x86-64: Fix unwind annotations in recent NMI changes x86-32: Start out cr0 clean, disable paging before modifying cr3/4
2013-01-31Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull console lockdep checking revert from Dave Airlie. The lockdep splat this showed was interesting, but it's very very old, and we won't be fixing it until 3.9. In the meantime, undo the lockdep annotation so that we don't generate the (known) console lockdep issue, and then possibly hide any potential other (unknown) lockdep problems that got disabled by the first one that triggered. * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: Revert "console: implement lockdep support for console_lock"
2013-01-31Revert "console: implement lockdep support for console_lock"Dave Airlie
This reverts commit daee779718a319ff9f83e1ba3339334ac650bb22. I'll requeue this after the console locking fixes, so lockdep is useful again for people until fbcon is fixed. Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-01-30NFSv4.1: Handle NFS4ERR_DELAY when resetting the NFSv4.1 sessionTrond Myklebust
NFS4ERR_DELAY is a legal reply when we call DESTROY_SESSION. It usually means that the server is busy handling an unfinished RPC request. Just sleep for a second and then retry. We also need to be able to handle the NFS4ERR_BACK_CHAN_BUSY return value. If the NFS server has outstanding callbacks, we just want to similarly sleep & retry. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
2013-01-30SUNRPC: When changing the queue priority, ensure that we change the ownerTrond Myklebust
This fixes a livelock in the xprt->sending queue where we end up never making progress on lower priority tasks because sleep_on_priority() keeps adding new tasks with the same owner to the head of the queue, and priority bumps mean that we keep resetting the queue->owner to whatever task is at the head of the queue. Regression introduced by commit c05eecf636101dd4347b2d8fa457626bf0088e0a (SUNRPC: Don't allow low priority tasks to pre-empt higher priority ones). Reported-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-01-30Merge tag 'efi-for-3.8' into x86/efiH. Peter Anvin
Various urgent EFI fixes and some warning cleanups for v3.8 * EFI boot stub fix for Macbook Pro's from Maarten Lankhorst * Fix an oops in efivarfs from Lingzhu Xiang * 32-bit warning cleanups from Jan Beulich * Patch to Boot on >512GB RAM systems from Nathan Zimmer * Set efi.runtime_version correctly * efivarfs updates Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-01-30NFS: Don't silently fail setattr() requests on mountpointsTrond Myklebust
Ensure that any setattr and getattr requests for junctions and/or mountpoints are sent to the server. Ever since commit 0ec26fd0698 (vfs: automount should ignore LOOKUP_FOLLOW), we have silently dropped any setattr requests to a server-side mountpoint. For referrals, we have silently dropped both getattr and setattr requests. This patch restores the original behaviour for setattr on mountpoints, and tries to do the same for referrals, provided that we have a filehandle... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
2013-01-30MIPS: Netlogic: Fix UP compilation on XLRJayachandran C
The commit 2a37b1a "MIPS: Netlogic: Move from u32 cpumask to cpumask_t" breaks uniprocessor compilation on XLR with: arch/mips/netlogic/xlr/setup.c: In function 'prom_init': arch/mips/netlogic/xlr/setup.c:196:6: error: unused variable 'i' Fix by defining 'i' only when CONFIG_SMP is defined. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Patchwork: http://patchwork.linux-mips.org/patch/4760/ Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-30MIPS: AR71xx: Fix AR71XX_PCI_MEM_SIZEGabor Juhos
The base address of the PCI memory is 0x10000000 and the base address of the PCI configuration space is 0x17000000 on the AR71xx SoCs. The AR71XX_PCI_MEM_SIZE is defined as 0x08000000 which is wrong because that overlaps with the configuration space. This patch fixes the value of the AR71XX_PCI_MEM_SIZE constant, in order to avoid this resource conflicts. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4873/ Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-30MIPS: AR724x: Fix AR724X_PCI_MEM_SIZEGabor Juhos
The base address of the PCI memory is 0x10000000 and the base address of the PCI configuration space is 0x14000000 on the AR724x SoCs. The AR724X_PCI_MEM_SIZE is defined as 0x08000000 which is wrong because that overlaps with the configuration space. The patch fixes the value of the AR724X_PCI_MEM_SIZE constant, in order to avoid this resource conflicts. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4872/ Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-30MIPS: Lantiq: Fix cp0_perfcount_irq mappingJohn Crispin
The introduction of the OF support broke the cp0_perfcount_irq mapping. This resulted in oprofile not working anymore. Offending commit is : commit 3645da0276ae9f6938ff29b13904b803ecb68424 Author: John Crispin <blogic@openwrt.org> Date: Tue Apr 17 10:18:32 2012 +0200 OF: MIPS: lantiq: implement irq_domain support Signed-off-by: Conor O'Gorman <i@conorogorman.net> Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4875/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-30rtc: Add support of rtc-mv for MVEBU SoCsGregory CLEMENT
The Armada 370 and Armada XP Socs have the same controller that the one used in the orion platforms. This patch enables the selection of rtc-mv with mvebu platforms. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Florian Fainelli <florian@openwrt.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-30ARM: Kirkwood: Support basic hotplug for PCI-EJason Gunthorpe
Unconditionally register the PCI-E bus, even if the link is currently down. When the link is brought up the bus can be scanned through /sys/bus/pci/rescan or otherwise. Since the HW has no interrupt for link up, userspace will have to take care of the timing. An earlier version of this was contingent on CONFIG_HOTPLUG, but that is being removed from the kernel. This also fixes printing the link up/down message to be displayed on one line (structured logging broke this?) Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>