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* ARM: dts: imx7d-sdb: Use WDOG_B pin resetFabio Estevam2016-06-15
| | | | | | | | | | imx7d-sdb has WDOG1_B pin connected to the PMIC. Pass the 'fsl,ext-reset-output' property so that the watchdog can trigger a system POR reset via the PMIC. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6qdl-sabresd: Use WDOG_B pin resetFabio Estevam2016-06-15
| | | | | | | | | | imx6qdl-sabresd has WDOG2_B pin connected to the PMIC. Pass the 'fsl,ext-reset-output' property so that the watchdog can trigger a system POR reset via the PMIC. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: utilite-pro: add mmc card slot supportChristopher Spinrath2016-06-15
| | | | | | | | | | | | The Utilite Pro has a mmc card slot connected to the usdhc3 controller. There is no card detection until hardware revision 1.3. Add support for it and signal the controller with the broken-cd property that polling has to be used to detect a card. Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6q-cm-fx6: fix the operation pointsValentin Raevsky2016-06-15
| | | | | | | | | | | | | | | | The current ldo settings of the cm-fx6 do not allow 1.2GHz cpu frequency. At this frequency the module behaves unstable. But the imx6q fuse indicates that 1.2GHz operation is possible. Hence, remove the 1.2GHz operation point in the device tree. Signed-off-by: Valentin Raevsky <valentin@compulab.co.il> [christopher.spinrath@rwth-aachen.de: enhance commit message, adjust remaining operation points to match the ones in imx6q.dtsi and add a comment in the device tree] Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6qdl.dtsi: add "arm,shared-override" for pl310Peter Chen2016-06-15
| | | | | | | | | | | | | The imx6 SMP system has the same DMA memory coherency issue [1] with pl310 L2 controller. With this shared override bit set, the customer reports the DMA coherency issue is gone. Besides, I have tested the performance using USB ethernet with/without this bit, it shows no difference. [1] http://patchwork.ozlabs.org/patch/469362/ Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: imx25-pinfunc: remove SION from all modesUwe Kleine-König2016-06-15
| | | | | | | | | | | | | | | | | | | | | | With the SION bit set a pin can be read as GPIO even though it's not muxed as GPIO. This is useful at times. The downside however is that the signal is not only routed to the GPIO IP but also all other IPs that can make use of the pin. This resulted in more than one issue for me in the past. Things like spi transfers that result in usb reenumeration or setting a GPIO to a value that triggers an RTS irq for an UART. This convinces me that the SION bit does more harm than good and so all SION bits are removed that are not known to be needed. Note that this has no influence on GPIOs under Linux as the gpio-mxc driver just reports the level the pin is driven to for outputs and not the level as seen on the pin. If this commit introduces a regression for you, please report which SION bit is essential for your setup. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: imx25-pinfunc: document SION being important for MX25_PAD_SD1_CMD__SD1_CMDUwe Kleine-König2016-06-15
| | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: ls1021a: Add dis_rxdet_inp3_quirk property to USB3 nodeRajesh Bhagat2016-06-11
| | | | | | | | Add "dis_rxdet_inp3_quirk" boolean property to USB3 node. This property is used to disable rx detection in P3 PHY mode. Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6qdl-sabresd: Pass the correct PCI reset polarityFabio Estevam2016-06-11
| | | | | | | | | | | The PCI reset GPIO is active low, so represent it with the GPIO_ACTIVE_LOW flag. Even though the imx6 PCI driver will not take the polarity into account in this case, it is better to provide a correct description in device-tree. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6q-cm-fx6: Relicense under GPLv2/X11Christopher Spinrath2016-06-11
| | | | | | | | | | | | | GPLv2-only devicetrees make reuse difficult for software components licensed under a different license. In particular, the Utilite Pro devicetree file (which includes imx6q-cm-fx6.dts) is already dual licensed under GPLv2/X11. Hence, relicense imx6q-cm-fx6.dts under GPLv2/X11 dual license. Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6q: add support for the Utilite ProChristopher Spinrath2016-06-11
| | | | | | | | | | | | | | The CompuLab Utilite Pro is a miniature fanless desktop pc based on the i.MX6 Quad powered cm-fx6 module. It features two serial ports, USB OTG, 4x USB, analog audio and S/PDIF, 2x Gb Ethernet, HDMI and DVI ports, an on-board 32GB SSD, a mmc slot, and on-board wifi/bt. Add initial support for it including USB, Ethernet (both ports), sata and HDMI support. Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6q: extend support for the cm-fx6Christopher Spinrath2016-06-11
| | | | | | | | | | | | The cm-fx6 module has an on-board spi-flash chip for its firmware, an eeprom (containing e.g. the mac address of the on-board Ethernet), a sata port, a pcie controller, an USB hub, and an USB otg port. Enable support for them. In addition, enable syscon poweroff support. Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6q-cm-fx6: remove iomuxc container nodeChristopher Spinrath2016-06-11
| | | | | | | | The imx6q-cm-fx6 iomuxc container node is not required. Remove it. Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx28-tx28: fix dtc warningStefan Wahren2016-06-11
| | | | | | | | | | | This fixes the following dtc warning by removing the unnecessary unit: Warning (unit_address_vs_reg): Node /matrix-keypad@0 has a unit name, but no reg property Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-By: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx28-cfa10049: fix dtc warningStefan Wahren2016-06-11
| | | | | | | | | | | This fixes the following dtc warning by removing the unnecessary unit: Warning (unit_address_vs_reg): Node /onewire@0 has a unit name, but no reg property Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx28-eukrea-mbmx28lc: add missing reg propertiesStefan Wahren2016-06-11
| | | | | | | | This patch adds the missing reg properties for the regulator nodes in order to fix the dtc warnings. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: mxs: add missing reg properties for GPIO banksStefan Wahren2016-06-11
| | | | | | | | | This patch adds the missing reg properties for the MXS GPIO banks in order to fix the dtc warnings. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6: add support for Auvidea H100 boardLucas Stach2016-06-11
| | | | | | | | | The Auvidea H100 is a baseboard for the SolidRun MicroSOM. Its primary feature is a Toshiba TC358743 HDMI to CSI decoder, allowing the board to work as HDMI passthrough and framegrabber. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6: tag boards that have the HW workaround for ERR006687Lucas Stach2016-06-11
| | | | | | | | | Add the DT property to all boards that have the hardware workaround for erratum ERR006687 present. This allows the CPUidle driver to use the deep idle states, even if the FEC is active. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6: fix IPU1 DI1 node nameJuergen Borleis2016-06-11
| | | | | | | | | | This node describes the DI1 port of IPU, fix the node name to reflect this. There's currently no user of this node in mainline, so this change should not break any supported platforms. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6ul-14x14-evk: Add LCD and backlight supportFabio Estevam2016-06-11
| | | | | | | | Add support for the LCD8000-43T display and for the backlight controlled via PWM1. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx: Use generic uart-has-rtscts DT propertyGeert Uytterhoeven2016-06-11
| | | | | | | | | | | As of commit 1006ed7e1b258dac ("serial: imx: Use generic uart-has-rtscts DT property"), the Freescale IMX UART driver recognizes the generic "uart-has-rtscts" DT property, deprecating the vendor-specific "fsl,uart-has-rtscts" DT property. Hence replace the latter by the former in all DTS files. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx28: Use generic uart-has-rtscts DT propertyGeert Uytterhoeven2016-06-11
| | | | | | | | | | | As of commit 182cdcb8bb16e687 ("serial: mxs-auart: Use generic uart-has-rtscts DT property"), the Freescale MXS AUART driver recognizes the generic "uart-has-rtscts" DT property, deprecating the vendor-specific "fsl,uart-has-rtscts" DT property. Hence replace the latter by the former in all DTS files. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: mxs: Add SanDisk Sansa Fuze+ supportMarek Vasut2016-06-10
| | | | | | | | | | Add support for this small MP3 player based on STMP3780 (rev.3). Currently supported are both external microSD and internal SD-NAND bridge, PWM and USB gadget. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: mxs: Add Creative X-Fi3 supportMarek Vasut2016-06-10
| | | | | | | | | | Add support for this small MP3 player based on STMP3780 (rev.4). Currently supported is both external microSD and internal SD-NAND bridge, PWM and USB gadget. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: mxs: Add AUART2 pinmuxMarek Vasut2016-06-10
| | | | | | | | Add 2-pin pinmux settings for AUART2. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: mxs: Add SSP2 SD muxMarek Vasut2016-06-10
| | | | | | | | | Add pinmux configuration for SSP2 port in SD mode, both for the 4-bit and 8-bit case. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: TS-4800: add CAN supportDamien Riegel2016-06-09
| | | | | | | This enables support for the CAN controller located in the FPGA. Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: TS-4800: add FPGA's IRQ controller supportDamien Riegel2016-06-09
| | | | | | | | | Enable FPGA's IRQ controller. It is in charge of dispatching interrupts generated by IPs in the FPGA. The SoC is notified that an interrupt occurred through a GPIO. Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx7d-pinfunc: add input mux for UART2 RX DTE modeStefan Agner2016-06-06
| | | | | | | | | | | | | | | Add input mux for UART2 RX in DTE mode. This allows to use the pad UART2_TX_DATA_ALT0 as UART2 RX. This particular input select seems to be missing in current reference manuals (Rev. B), but when looking at the tables and other UART input select registers (e.g. UART3) it seems naturally that this input mux register also has a fourth pad option for UART2_TX_DATA_ALT0. It has also been proven to be required to use UART2 in DTE mode and the particular pads on the Colibri iMX7 platform. Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6ul-14x14-evk: Pass "fsl, sai-mclk-direction-output"Fabio Estevam2016-06-06
| | | | | | | | Pass "fsl,sai-mclk-direction-output" to the sai2 node, so that the SAI2_MCLK can be an output. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6ul: Add SAI aliasFabio Estevam2016-06-06
| | | | | | | | Add SAI alias entries, which makes it possibe for the SAI driver to retrieve the port instance. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx: Remove unneeded unit-addressesFabio Estevam2016-06-06
| | | | | | | | | | | | Building with W=1 option leads to several warnings like: Warning (unit_address_vs_reg): Node /soc/aips-bus@02000000/anatop@020c8000/regulator-1p1@110 has a unit name, but no reg property Fix them by removing the unneeded unit-addresses. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6sl: add clocks property for ocotp nodePeng Fan2016-06-06
| | | | | | | | | Add clocks property for ocotp node. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* ARM: dts: imx6qdl: add clocks property for ocotp nodePeng Fan2016-06-06
| | | | | | | | | Add clocks property for ocotp node. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* Linux 4.7-rc1Linus Torvalds2016-05-29
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* hash_string: Fix zero-length case for !DCACHE_WORD_ACCESSGeorge Spelvin2016-05-29
| | | | | | | | | | The self-test was updated to cover zero-length strings; the function needs to be updated, too. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: George Spelvin <linux@sciencehorizons.net> Fixes: fcfd2fbf22d2 ("fs/namei.c: Add hashlen_string() function") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Rename other copy of hash_string to hashlen_stringGeorge Spelvin2016-05-29
| | | | | | | | | | | | | | | | The original name was simply hash_string(), but that conflicted with a function with that name in drivers/base/power/trace.c, and I decided that calling it "hashlen_" was better anyway. But you have to do it in two places. [ This caused build errors for architectures that don't define CONFIG_DCACHE_WORD_ACCESS - Linus ] Signed-off-by: George Spelvin <linux@sciencehorizons.net> Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: fcfd2fbf22d2 ("fs/namei.c: Add hashlen_string() function") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hpfs: implement the show_options methodMikulas Patocka2016-05-28
| | | | | | | | | | | | | | | | The HPFS filesystem used generic_show_options to produce string that is displayed in /proc/mounts. However, there is a problem that the options may disappear after remount. If we mount the filesystem with option1 and then remount it with option2, /proc/mounts should show both option1 and option2, however it only shows option2 because the whole option string is replaced with replace_mount_options in hpfs_remount_fs. To fix this bug, implement the hpfs_show_options function that prints options that are currently selected. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* affs: fix remount failure when there are no options changedMikulas Patocka2016-05-28
| | | | | | | | | | | | | | | | | | | | | | Commit c8f33d0bec99 ("affs: kstrdup() memory handling") checks if the kstrdup function returns NULL due to out-of-memory condition. However, if we are remounting a filesystem with no change to filesystem-specific options, the parameter data is NULL. In this case, kstrdup returns NULL (because it was passed NULL parameter), although no out of memory condition exists. The mount syscall then fails with ENOMEM. This patch fixes the bug. We fail with ENOMEM only if data is non-NULL. The patch also changes the call to replace_mount_options - if we didn't pass any filesystem-specific options, we don't call replace_mount_options (thus we don't erase existing reported options). Fixes: c8f33d0bec99 ("affs: kstrdup() memory handling") Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hpfs: fix remount failure when there are no options changedMikulas Patocka2016-05-28
| | | | | | | | | | | | | | | | | | | | | | Commit ce657611baf9 ("hpfs: kstrdup() out of memory handling") checks if the kstrdup function returns NULL due to out-of-memory condition. However, if we are remounting a filesystem with no change to filesystem-specific options, the parameter data is NULL. In this case, kstrdup returns NULL (because it was passed NULL parameter), although no out of memory condition exists. The mount syscall then fails with ENOMEM. This patch fixes the bug. We fail with ENOMEM only if data is non-NULL. The patch also changes the call to replace_mount_options - if we didn't pass any filesystem-specific options, we don't call replace_mount_options (thus we don't erase existing reported options). Fixes: ce657611baf9 ("hpfs: kstrdup() out of memory handling") Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2016-05-28
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull more MIPS updates from Ralf Baechle: "This is the secondnd batch of MIPS patches for 4.7. Summary: CPS: - Copy EVA configuration when starting secondary VPs. EIC: - Clear Status IPL. Lasat: - Fix a few off by one bugs. lib: - Mark intrinsics notrace. Not only are the intrinsics uninteresting, it would cause infinite recursion. MAINTAINERS: - Add file patterns for MIPS BRCM device tree bindings. - Add file patterns for mips device tree bindings. MT7628: - Fix MT7628 pinmux typos. - wled_an pinmux gpio. - EPHY LEDs pinmux support. Pistachio: - Enable KASLR VDSO: - Build microMIPS VDSO for microMIPS kernels. - Fix aliasing warning by building with `-fno-strict-aliasing' for debugging but also tracing them might result in recursion. Misc: - Add missing FROZEN hotplug notifier transitions. - Fix clk binding example for varioius PIC32 devices. - Fix cpu interrupt controller node-names in the DT files. - Fix XPA CPU feature separation. - Fix write_gc0_* macros when writing zero. - Add inline asm encoding helpers. - Add missing VZ accessor microMIPS encodings. - Fix little endian microMIPS MSA encodings. - Add 64-bit HTW fields and fix its configuration. - Fix sigreturn via VDSO on microMIPS kernel. - Lots of typo fixes. - Add definitions of SegCtl registers and use them" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (49 commits) MIPS: Add missing FROZEN hotplug notifier transitions MIPS: Build microMIPS VDSO for microMIPS kernels MIPS: Fix sigreturn via VDSO on microMIPS kernel MIPS: devicetree: fix cpu interrupt controller node-names MIPS: VDSO: Build with `-fno-strict-aliasing' MIPS: Pistachio: Enable KASLR MIPS: lib: Mark intrinsics notrace MIPS: Fix 64-bit HTW configuration MIPS: Add 64-bit HTW fields MAINTAINERS: Add file patterns for mips device tree bindings MAINTAINERS: Add file patterns for mips brcm device tree bindings MIPS: Simplify DSP instruction encoding macros MIPS: Add missing tlbinvf/XPA microMIPS encodings MIPS: Fix little endian microMIPS MSA encodings MIPS: Add missing VZ accessor microMIPS encodings MIPS: Add inline asm encoding helpers MIPS: Spelling fix lets -> let's MIPS: VR41xx: Fix typo MIPS: oprofile: Fix typo MIPS: math-emu: Fix typo ...
| * MIPS: Add missing FROZEN hotplug notifier transitionsAnna-Maria Gleixner2016-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | The corresponding FROZEN hotplug notifier transitions used on suspend/resume are ignored. Therefore the switch case action argument is masked with the frozen hotplug notifier transition mask. Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: rt@linutronix.de Patchwork: https://patchwork.linux-mips.org/patch/13351/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Build microMIPS VDSO for microMIPS kernelsJames Hogan2016-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | MicroMIPS kernels may be expected to run on microMIPS only cores which don't support the normal MIPS instruction set, so be sure to pass the -mmicromips flag through to the VDSO cflags. Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.4.x- Patchwork: https://patchwork.linux-mips.org/patch/13349/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Fix sigreturn via VDSO on microMIPS kernelJames Hogan2016-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In microMIPS kernels, handle_signal() sets the isa16 mode bit in the vdso address so that the sigreturn trampolines (which are offset from the VDSO) get executed as microMIPS. However commit ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") changed the offsets to come from the VDSO image, which already have the isa16 mode bit set correctly since they're extracted from the VDSO shared library symbol table. Drop the isa16 mode bit handling from handle_signal() to fix sigreturn for cores which support both microMIPS and normal MIPS. This doesn't fix microMIPS only cores, since the VDSO is still built for normal MIPS, but thats a separate problem. Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.4.x- Patchwork: https://patchwork.linux-mips.org/patch/13348/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: devicetree: fix cpu interrupt controller node-namesAntony Pavlov2016-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here is the quote from [1]: The unit-address must match the first address specified in the reg property of the node. If the node has no reg property, the @ and unit-address must be omitted and the node-name alone differentiates the node from other nodes at the same level This patch adjusts MIPS dts-files and devicetree binding documentation in accordance with [1]. [1] Power.org(tm) Standard for Embedded Power Architecture(tm) Platform Requirements (ePAPR). Version 1.1 – 08 April 2011. Chapter 2.2.1.1 Node Name Requirements Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13345/ Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: VDSO: Build with `-fno-strict-aliasing'Maciej W. Rozycki2016-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid an aliasing issue causing a build error in VDSO: In file included from include/linux/srcu.h:34:0, from include/linux/notifier.h:15, from ./arch/mips/include/asm/uprobes.h:9, from include/linux/uprobes.h:61, from include/linux/mm_types.h:13, from ./arch/mips/include/asm/vdso.h:14, from arch/mips/vdso/vdso.h:27, from arch/mips/vdso/gettimeofday.c:11: include/linux/workqueue.h: In function 'work_static': include/linux/workqueue.h:186:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing] return *work_data_bits(work) & WORK_STRUCT_STATIC; ^ cc1: all warnings being treated as errors make[2]: *** [arch/mips/vdso/gettimeofday.o] Error 1 with a CONFIG_DEBUG_OBJECTS_WORK configuration and GCC 5.2.0. Include `-fno-strict-aliasing' along with compiler options used, as required for kernel code, fixing a problem present since the introduction of VDSO with commit ebb5e78cc634 ("MIPS: Initial implementation of a VDSO"). Thanks to Tejun for diagnosing this properly! Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Cc: Tejun Heo <tj@kernel.org> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # v4.3+ Patchwork: https://patchwork.linux-mips.org/patch/13357/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Pistachio: Enable KASLRMatt Redfearn2016-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow KASLR to be selected on Pistachio based systems. Tested on a Creator Ci40. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Jonas Gorski <jogo@openwrt.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13356/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: lib: Mark intrinsics notraceHarvey Hunt2016-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On certain MIPS32 devices, the ftrace tracer "function_graph" uses __lshrdi3() during the capturing of trace data. ftrace then attempts to trace __lshrdi3() which leads to infinite recursion and a stack overflow. Fix this by marking __lshrdi3() as notrace. Mark the other compiler intrinsics as notrace in case the compiler decides to use them in the ftrace path. Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com> Cc: <linux-mips@linux-mips.org> Cc: <linux-kernel@vger.kernel.org> Cc: <stable@vger.kernel.org> # 4.2.x- Patchwork: https://patchwork.linux-mips.org/patch/13354/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * MIPS: Fix 64-bit HTW configurationJames Hogan2016-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Hardware page Table Walker (HTW) is being misconfigured on 64-bit kernels. The PWSize.PS (pointer size) bit determines whether pointers within directories are loaded as 32-bit or 64-bit addresses, but was never being set to 1 for 64-bit kernels where the unsigned long in pgd_t is 64-bits wide. This actually reduces rather than improves performance when the HTW is enabled on P6600 since the HTW is initiated lots, but walks are all aborted due I think to bad intermediate pointers. Since we were already taking the width of the PTEs into account by setting PWSize.PTEW, which is the left shift applied to the page table index *in addition to* the native pointer size, we also need to reduce PTEW by 1 when PS=1. This is done by calculating PTEW based on the relative size of pte_t compared to pgd_t. Finally in order for the HTW to be used when PS=1, the appropriate XK/XS/XU bits corresponding to the different 64-bit segments need to be set in PWCtl. We enable only XU for now to enable walking for XUSeg. Supporting walking for XKSeg would be a bit more involved so is left for a future patch. It would either require the use of a per-CPU top level base directory if supported by the HTW (a bit like pgd_current but with a second entry pointing at swapper_pg_dir), or the HTW would prepend bit 63 of the address to the global directory index which doesn't really match how we split user and kernel page directories. Fixes: cab25bc7537b ("MIPS: Extend hardware table walking support to MIPS64") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13364/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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