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2017-09-01rtc: goldfish: Add RTC driver for Android emulatorMiodrag Dinic1-0/+1
Add device driver for a virtual RTC device in Android emulator. The compatible string used by OS for binding the driver is defined as "google,goldfish-rtc". Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-09-01dt-bindings: Add device tree binding for Goldfish RTC driverAleksandar Markovic1-0/+5
Add documentation for DT binding of Goldfish RTC driver. The compatible string used by OS for binding the driver is "google,goldfish-rtc". Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-08-31tracing/hyper-v: Trace hyperv_mmu_flush_tlb_others()Vitaly Kuznetsov1-0/+1
Add Hyper-V tracing subsystem and trace hyperv_mmu_flush_tlb_others(). Tracing is done the same way we do xen_mmu_flush_tlb_others(). Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Jork Loeser <Jork.Loeser@microsoft.com> Cc: K. Y. Srinivasan <kys@microsoft.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Simon Xiao <sixiao@microsoft.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: devel@linuxdriverproject.org Link: http://lkml.kernel.org/r/20170802160921.21791-10-vkuznets@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-31Merge branch 'x86/mm' into x86/platform, to pick up TLB flush dependencyIngo Molnar1-1/+1
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-30ARC: clk: introduce HSDK pll driverEugeniy Paltsev1-0/+6
HSDK board manages its clocks using various PLLs. These PLL have same dividers and corresponding control registers mapped to different addresses. So we add one common driver for such PLLs. Each PLL on HSDK board consists of three dividers: IDIV, FBDIV and ODIV. Output clock value is managed using these dividers. We add pre-defined tables with supported rate values and appropriate configurations of IDIV, FBDIV and ODIV for each value. As of today we add support for PLLs that generate clock for the HSDK arc cpus, system, ddr, AXI tunnel and hdmi. By this patch we add support for several plls (arc cpus pll and others), so we had to use two different init types: CLK_OF_DECLARE for arc cpus pll and regular probing for others plls. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Reviewed-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31MAINTAINERS: Add drivers/watchdog/wdrtas.c to powerpc sectionMurilo Opsfelder Araujo1-0/+1
drivers/watchdog/wdrtas.c is of interest of linuxppc maintainers. Signed-off-by: Murilo Opsfelder Araujo <mopsfelder@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31powerpc/powernv/vas: Define copy/paste interfacesSukadev Bhattiprolu1-0/+1
Define interfaces (wrappers) to the 'copy' and 'paste' instructions (which are new in PowerISA 3.0). These are intended to be used to by NX driver(s) to submit Coprocessor Request Blocks (CRBs) to the NX hardware engines. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31powerpc/powernv/vas: Define vas_init() and vas_exit()Sukadev Bhattiprolu1-0/+8
Implement vas_init() and vas_exit() functions for a new VAS module. This VAS module is essentially a library for other device drivers and kernel users of the NX coprocessors like NX-842 and NX-GZIP. In the future this will be extended to add support for user space to access the NX coprocessors. VAS is currently only supported with 64K page size. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-30MAINTAINERS: Add Jonathan Derrick as VMD maintainerJon Derrick1-0/+1
Add Jonathan Derrick as VMD maintainer. Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Keith Busch <keith.busch@intel.com>
2017-08-29MAINTAINERS: Update Cavium ThunderX2 entryRobert Richter1-0/+1
Add Robert Richter as the primary maintainer for this platform. Signed-off-by: Jayachandran C <jnair@caviumnetworks.com> Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2017-08-29staging: irda: update MAINTAINERSGreg Kroah-Hartman1-3/+1
Now that the IRDA code has moved under drivers/staging/irda/, update the MAINTAINERS file with the new location. Reported-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29MAINTAINERS: Add entry for drivers/i2c/busses/i2c-cht-wc.cHans de Goede1-0/+6
Add an entry for drivers/i2c/busses/i2c-cht-wc.c and add myself as maintainer of this driver. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-08-28hv_sock: implements Hyper-V transport for Virtual Sockets (AF_VSOCK)Dexuan Cui1-0/+1
Hyper-V Sockets (hv_sock) supplies a byte-stream based communication mechanism between the host and the guest. It uses VMBus ringbuffer as the transportation layer. With hv_sock, applications between the host (Windows 10, Windows Server 2016 or newer) and the guest can talk with each other using the traditional socket APIs. More info about Hyper-V Sockets is available here: "Make your own integration services": https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/make-integration-service The patch implements the necessary support in Linux guest by introducing a new vsock transport for AF_VSOCK. Signed-off-by: Dexuan Cui <decui@microsoft.com> Cc: K. Y. Srinivasan <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Andy King <acking@vmware.com> Cc: Dmitry Torokhov <dtor@vmware.com> Cc: George Zhang <georgezhang@vmware.com> Cc: Jorgen Hansen <jhansen@vmware.com> Cc: Reilly Grant <grantr@vmware.com> Cc: Asias He <asias@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Cathy Avery <cavery@redhat.com> Cc: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: Marcelo Cerri <marcelo.cerri@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-28Documentation/ABI: document the nvmem sysfs filesSrinivas Kandagatla1-0/+1
NVMEM has been in kernel since v4.2 but the ABI document was missing since then. userspace interface did not change since then and seems stable, so this patch documents the nvmem ABI. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-28Merge 4.13-rc7 into char-misc-nextGreg Kroah-Hartman1-1/+0
We want the binder fix in here as well for testing and merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-27MAINTAINERS: drop entry for Blackfin I2C and Sonic's emailWolfram Sang1-9/+0
Sonic's email address bounced, so remove it from MAINTAINERS. Since there was no I2C/TWI maintenance activity for 3 years now, drop that whole entry. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-08-26media: leds: as3645a: Add LED flash class driverSakari Ailus1-0/+6
Add a LED flash class driver for the as3654a flash controller. A V4L2 flash driver for it already exists (drivers/media/i2c/as3645a.c), and this driver is based on that. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26media: MAINTAINERS: Add Qualcomm Camera subsystem driverTodor Tomov1-0/+8
Add an entry for Qualcomm Camera subsystem driver. Signed-off-by: Todor Tomov <todor.tomov@linaro.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-24scsi: cciss: Drop obsolete driverHannes Reinecke1-10/+0
The hpsa driver now has support for all boards the cciss driver used to support, so this patch removes the cciss driver and make hpsa an alias to cciss. Signed-off-by: Hannes Reinecke <hare@suse.com> Acked-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24x86/lguest: Remove lguest supportJuergen Gross1-11/+0
Lguest seems to be rather unused these days. It has seen only patches ensuring it still builds the last two years and its official state is "Odd Fixes". Remove it in order to be able to clean up the paravirt code. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: boris.ostrovsky@oracle.com Cc: lguest@lists.ozlabs.org Cc: rusty@rustcorp.com.au Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/20170816173157.8633-3-jgross@suse.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-23irqchip: Add UniPhier AIDET irqchip driverMasahiro Yamada1-0/+1
UniPhier SoCs contain AIDET (ARM Interrupt Detector). This is intended to provide additional features that are not covered by GIC. The main purpose is to provide logic inverter to support low level and falling edge trigger types for interrupt lines from on-board devices. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-08-22Merge tag 'phy-for-4.14_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-nextGreg Kroah-Hartman1-1/+1
Kishon writes: phy: for 4.14 *) Add USB PHY driver for Ralink SoC *) Make phy-mt65xx-usb3 driver support PCIe and SATA phy *) Add mediatek directory and rename phy-mt65xx-usb3 to phy-mtk-tphy.c since it now supports USB3.0, PCIe and SATA PHYs *) Make sun4i-usb-phy driver support USB PHYs for A83T SoC *) Make phy-qcom-qmp driver support USB PHYs for IPQ8074 SoC *) Make rockchip-inno-usb2 driver support usb2-phy for rv1108 SoC *) Minor fixes in phy drivers Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-08-22net-next/hinic: Add MaintainerAviad Krawczyk1-0/+7
Update MAINTAINERS file Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22MAINTAINERS: Add entry for THUNDERX GPIO Driver.David Daney1-0/+5
Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-22MAINTAINERS: Add ARTPEC crypto maintainerLars Persson1-0/+1
Assign the Axis kernel team as maintainer for crypto drivers under drivers/crypto/axis. Signed-off-by: Lars Persson <larper@axis.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-08-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+0
2017-08-22Merge tag 'drm-intel-next-2017-08-18' of git://anongit.freedesktop.org/git/drm-intel into drm-nextDave Airlie1-1/+2
Final pile of features for 4.14 - New ioctl to change NOA configurations, plus prep (Lionel) - CCS (color compression) scanout support, based on the fancy new modifier additions (Ville&Ben) - Document i915 register macro style (Jani) - Many more gen10/cnl patches (Rodrigo, Pualo, ...) - More gpu reset vs. modeset duct-tape to restore the old way. - prep work for cnl: hpd_pin reorg (Rodrigo), support for more power wells (Imre), i2c pin reorg (Anusha) - drm_syncobj support (Jason Ekstrand) - forcewake vs gpu reset fix (Chris) - execbuf speedup for the no-relocs fastpath, anv/vk low-overhead ftw (Chris) - switch to idr/radixtree instead of the resizing ht for execbuf id->vma lookups (Chris) gvt: - MMIO save/restore optimization (Changbin) - Split workload scan vs. dispatch for more parallel exec (Ping) - vGPU full 48bit ppgtt support (Joonas, Tina) - vGPU hw id expose for perf (Zhenyu) Bunch of work all over to make the igt CI runs more complete/stable. Watch https://intel-gfx-ci.01.org/tree/drm-tip/shards-all.html for progress in getting this ready. Next week we're going into production mode (i.e. will send results to intel-gfx) on hsw, more platforms to come. Also, a new maintainer tram, I'm stepping out. Huge thanks to Jani for being an awesome co-maintainer the past few years, and all the best for Jani, Joonas&Rodrigo as the new maintainers! * tag 'drm-intel-next-2017-08-18' of git://anongit.freedesktop.org/git/drm-intel: (179 commits) drm/i915: Update DRIVER_DATE to 20170818 drm/i915/bxt: use NULL for GPIO connection ID drm/i915: Mark the GT as busy before idling the previous request drm/i915: Trivial grammar fix s/opt of/opt out of/ in comment drm/i915: Replace execbuf vma ht with an idr drm/i915: Simplify eb_lookup_vmas() drm/i915: Convert execbuf to use struct-of-array packing for critical fields drm/i915: Check context status before looking up our obj/vma drm/i915: Don't use MI_STORE_DWORD_IMM on Sandybridge/vcs drm/i915: Stop touching forcewake following a gen6+ engine reset MAINTAINERS: drm/i915 has a new maintainer team drm/i915: Split pin mapping into per platform functions drm/i915/opregion: let user specify override VBT via firmware load drm/i915/cnl: Reuse skl_wm_get_hw_state on Cannonlake. drm/i915/gen10: implement gen 10 watermarks calculations drm/i915/cnl: Fix LSPCON support. drm/i915/vbt: ignore extraneous child devices for a port drm/i915/cnl: Setup PAT Index. drm/i915/edp: Allow alternate fixed mode for eDP if available. drm/i915: Add support for drm syncobjs ...
2017-08-21Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcuIngo Molnar1-1/+1
Pull RCU updates from Paul E. McKenney: - Removal of spin_unlock_wait() - SRCU updates - Torture-test updates - Documentation updates - Miscellaneous fixes - CPU-hotplug fixes - Miscellaneous non-RCU fixes Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-20Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-1/+0
Pull irq fixes from Thomas Gleixner: "A pile of smallish changes all over the place: - Add a missing ISB in the GIC V1 driver - Remove an ACPI version check in the GIC V3 ITS driver - Add the missing irq_pm_shutdown function for BRCMSTB-L2 to avoid spurious wakeups - Remove the artifical limitation of ITS instances to the number of NUMA nodes which prevents utilizing the ITS hardware correctly - Prevent a infinite parsing loop in the GIC-V3 ITS/MSI code - Honour the force affinity argument in the GIC-V3 driver which is required to make perf work correctly - Correctly report allocation failures in GIC-V2/V3 to avoid using half allocated and initialized interrupts. - Fixup checks against nr_cpu_ids in the generic IPI code" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/ipi: Fixup checks against nr_cpu_ids genirq: Restore trigger settings in irq_modify_status() MAINTAINERS: Remove Jason Cooper's irqchip git tree irqchip/gic-v3-its-platform-msi: Fix msi-parent parsing loop irqchip/gic-v3-its: Allow GIC ITS number more than MAX_NUMNODES irqchip: brcmstb-l2: Define an irq_pm_shutdown function irqchip/gic: Ensure we have an ISB between ack and ->handle_irq irqchip/gic-v3-its: Remove ACPICA version check for ACPI NUMA irqchip/gic-v3: Honor forced affinity setting irqchip/gic-v3: Report failures in gic_irq_domain_alloc irqchip/gic-v2: Report failures in gic_irq_domain_alloc irqchip/atmel-aic: Remove root argument from ->fixup() prototype irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup() irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()
2017-08-20media: rc: pwm-ir-tx: add new driverSean Young1-0/+6
This is new driver which uses pwm, so it is more power-efficient than the bit banging gpio-ir-tx driver. Signed-off-by: Sean Young <sean@mess.org> Reviewed-by: Pavel Machek <pavel@ucw.cz> Tested-by: Matthias Reichl <hias@horus.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20media: rc: gpio-ir-tx: add new driverSean Young1-0/+6
This is a simple bit-banging GPIO IR TX driver. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Matthias Reichl <hias@horus.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20media: rc: mtk-cir: add MAINTAINERS entry for MediaTek CIR driverSean Wang1-0/+5
I work for MediaTek on maintaining the MediaTek CIR driver for the existing SoCs and adding support for the following SoCs. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20media: MAINTAINERS: add entry for mxl5xxDaniel Scheller1-0/+8
Add MAINTAINER's entry for this new driver. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20media: MAINTAINERS: add entry for ddbridgeDaniel Scheller1-0/+8
An entry for ddbridge driver was missing. Add it, now that it moved to Maintained state. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20phy: phy-mt65xx-usb3: add mediatek directory and rename fileChunfeng Yun1-1/+1
The driver is actually for T-PHY which supports USB3.0, PCIe and SATA, and supports more SoCs now, but not just only for series of mt65xx SoCs, so the name of file, data struct, functions etc with 'mt65xx' may cause misunderstanding when new SoCs are supported. Here rename them to reflect the real functions and also enhance readability. And also update MAINTAINERS file to reflect the correct driver Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-08-19Merge tag 'reset-for-4.14' of git://git.pengutronix.de/git/pza/linux into next/driversArnd Bergmann1-0/+7
Pull "Reset controller changes for v4.14" from Philipp Zabel: - constify zx2967 reset_ops - add a convenience API to manage an array of resets - let deassert report success and let assert report success for shared resets if the reset controller driver does not implement (de)assert. - add HSDKv1 reset driver - remove Gemini reset controller, the driver is made obsolete by a combined clock/reset driver in drivers/clk - fix the total number of reset lines in the sunxi driver - various uniphier updates and fixes: - remove sLD3 SoC support - simplify system reset register and bit definitions - add audio systems, video input subsystem, and analog amplifiers reset controls * tag 'reset-for-4.14' of git://git.pengutronix.de/git/pza/linux: reset: uniphier: add analog amplifiers reset control reset: uniphier: add video input subsystem reset control reset: uniphier: add audio systems reset control reset: sunxi: fix number of reset lines reset: uniphier: do not use per-SoC macro for system reset block reset: uniphier: remove sLD3 SoC support Revert "reset: Add a Gemini reset controller" ARC: reset: introduce HSDKv1 reset driver reset: make (de)assert report success for self-deasserting reset drivers reset: Add APIs to manage array of resets reset: zx2967: constify zx2967_reset_ops.
2017-08-18Merge airlied/drm-next into drm-misc-nextSean Paul1-6/+21
Archit requested this backmerge to facilitate merging some patches depending on changes between -rc2 & -rc5 Signed-off-by: Sean Paul <seanpaul@chromium.org>
2017-08-18skd: Update maintainer informationBart Van Assche1-0/+6
E-mails sent to support@stec-inc.com bounce. Hence remove that e-mail address from the driver. Add an entry to the MAINTAINERS file instead. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-08-18MAINTAINERS: Update the Gemini maintainer listLinus Walleij1-0/+5
This patch: - Adds myself as comaintainer for the Gemini. - Adds the Gemini main bindings to the file list. - Adds the pin controller plus bindings to the Gemini file list. - Fixes up the path of the RTC binding and driver. Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-18MAINTAINERS: Remove Jason Cooper's irqchip git treeFlorian Fainelli1-1/+0
Jason's irqchip tree does not seem to have been updated for many months now, remove it from the list of trees to avoid any possible confusion. Jason says: "Unfortunately, when I have time for irqchip, I don't always have the time to properly follow up with pull-requests. So, for the time being, I'll stick to reviewing as I can." Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Cc: marc.zyngier@arm.com Link: http://lkml.kernel.org/r/20170727224733.8288-1-f.fainelli@gmail.com
2017-08-18MAINTAINERS: drm/i915 has a new maintainer teamDaniel Vetter1-1/+2
For a bunch of reasons[1] I've decided to step down as maintainer and let some other folks enjoy the reputation and hang out in the spotlight. Jani is going to stick around with his expertise in kms and having done the fixes flow for a long time now. Joonas will join and bring in his knowledge on all things GEM. Rodrigo has been less visible because he's been doing tons of work taking care of the internal branch, and it'd be good to have more continuity between these two worlds also on the maintainer side. 1: They all boil down to: This is going to happen sooner or later anyway, we have a great team, with the process improvements over the last few years things work rather well, now is as good as any time to do this. With that change I'll have more time for other aspects of the stack development than maintainership. Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Dave Airlie <airlied@gmail.com> Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@linux.intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170815160101.1683-1-daniel.vetter@ffwll.ch
2017-08-17membarrier: Provide expedited private commandMathieu Desnoyers1-1/+1
Implement MEMBARRIER_CMD_PRIVATE_EXPEDITED with IPIs using cpumask built from all runqueues for which current thread's mm is the same as the thread calling sys_membarrier. It executes faster than the non-expedited variant (no blocking). It also works on NOHZ_FULL configurations. Scheduler-wise, it requires a memory barrier before and after context switching between processes (which have different mm). The memory barrier before context switch is already present. For the barrier after context switch: * Our TSO archs can do RELEASE without being a full barrier. Look at x86 spin_unlock() being a regular STORE for example. But for those archs, all atomics imply smp_mb and all of them have atomic ops in switch_mm() for mm_cpumask(), and on x86 the CR3 load acts as a full barrier. * From all weakly ordered machines, only ARM64 and PPC can do RELEASE, the rest does indeed do smp_mb(), so there the spin_unlock() is a full barrier and we're good. * ARM64 has a very heavy barrier in switch_to(), which suffices. * PPC just removed its barrier from switch_to(), but appears to be talking about adding something to switch_mm(). So add a smp_mb__after_unlock_lock() for now, until this is settled on the PPC side. Changes since v3: - Properly document the memory barriers provided by each architecture. Changes since v2: - Address comments from Peter Zijlstra, - Add smp_mb__after_unlock_lock() after finish_lock_switch() in finish_task_switch() to add the memory barrier we need after storing to rq->curr. This is much simpler than the previous approach relying on atomic_dec_and_test() in mmdrop(), which actually added a memory barrier in the common case of switching between userspace processes. - Return -EINVAL when MEMBARRIER_CMD_SHARED is used on a nohz_full kernel, rather than having the whole membarrier system call returning -ENOSYS. Indeed, CMD_PRIVATE_EXPEDITED is compatible with nohz_full. Adapt the CMD_QUERY mask accordingly. Changes since v1: - move membarrier code under kernel/sched/ because it uses the scheduler runqueue, - only add the barrier when we switch from a kernel thread. The case where we switch from a user-space thread is already handled by the atomic_dec_and_test() in mmdrop(). - add a comment to mmdrop() documenting the requirement on the implicit memory barrier. CC: Peter Zijlstra <peterz@infradead.org> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> CC: Boqun Feng <boqun.feng@gmail.com> CC: Andrew Hunter <ahh@google.com> CC: Maged Michael <maged.michael@gmail.com> CC: gromer@google.com CC: Avi Kivity <avi@scylladb.com> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: Paul Mackerras <paulus@samba.org> CC: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Dave Watson <davejwatson@fb.com>
2017-08-17Merge tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc into drm-nextDave Airlie1-0/+6
UAPI Changes: - vc4: Allow userspace to dictate rendering order in submit_cl ioctl (Eric) Cross-subsystem Changes: - vboxvideo: One of Cihangir's patches applies to vboxvideo which is maintained in staging Core Changes: - atomic_legacy_backoff is officially killed (Daniel) - Extract drm_device.h (Daniel) - Unregister drm device on unplug (Daniel) - Rename deprecated drm_*_(un)?reference functions to drm_*_{get|put} (Cihangir) Driver Changes: - vc4: Error/destroy path cleanups, log level demotion, edid leak (Eric) - various: Make various drm_*_funcs structs const (Bhumika) - tinydrm: add support for LEGO MINDSTORMS EV3 LCD (David) - various: Second half of .dumb_{map_offset|destroy} defaults set (Noralf) Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Eric Anholt <eric@anholt.net> Cc: Bhumika Goyal <bhumirks@gmail.com> Cc: Cihangir Akturk <cakturk@gmail.com> Cc: David Lechner <david@lechnology.com> Cc: Noralf Trønnes <noralf@tronnes.org> * tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc: (50 commits) drm/gem-cma-helper: Remove drm_gem_cma_dumb_map_offset() drm/virtio: Use the drm_driver.dumb_destroy default drm/bochs: Use the drm_driver.dumb_destroy default drm/mgag200: Use the drm_driver.dumb_destroy default drm/exynos: Use .dumb_map_offset and .dumb_destroy defaults drm/msm: Use the drm_driver.dumb_destroy default drm/ast: Use the drm_driver.dumb_destroy default drm/qxl: Use the drm_driver.dumb_destroy default drm/udl: Use the drm_driver.dumb_destroy default drm/cirrus: Use the drm_driver.dumb_destroy default drm/tegra: Use .dumb_map_offset and .dumb_destroy defaults drm/gma500: Use .dumb_map_offset and .dumb_destroy defaults drm/mxsfb: Use .dumb_map_offset and .dumb_destroy defaults drm/meson: Use .dumb_map_offset and .dumb_destroy defaults drm/kirin: Use .dumb_map_offset and .dumb_destroy defaults drm/vc4: Continue the switch to drm_*_put() helpers drm/vc4: Fix leak of HDMI EDID dma-buf: fix reservation_object_wait_timeout_rcu to wait correctly v2 dma-buf: add reservation_object_copy_fences (v2) drm/tinydrm: add support for LEGO MINDSTORMS EV3 LCD ...
2017-08-16MAINTAINERS: update ARM/ZTE entryShawn Guo1-2/+23
Update ARM/ZTE entry to include all those ZTE ZX platform drivers and files that do not have a separate MAINTAINERS entry. Since I have been contributing a lot for ZTE ZX SoCs support and collecting platform patches for a few cycles, add myself as one maintainer for the platform. Cc: Jun Nie <jun.nie@linaro.org> Cc: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-08-16MAINTAINERS: Add drm/tinydrm maintainer entryNoralf Trønnes1-0/+8
Add myself as drivers/gpu/drm/tinydrm maintainer. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/1502645790-14944-1-git-send-email-noralf@tronnes.org
2017-08-16MAINTAINERS: Add entry for qcom_iommuRob Clark1-0/+7
Add maintainer entry for qcom_iommu. Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-16MAINTAINERS: Update entries for notification subsystemJan Kara1-5/+9
Entries for inotify, dnotify, and fanotify in MAINTAINERS are stale. Neither Eric nor Robert nor John care about these subsystems anymore. These days it is mostly me or Amir who take care of bugs in these subsystems. So update MAINTAINERS to reflect current state. CC: Alexander Viro <viro@zeniv.linux.org.uk> CC: Eric Paris <eparis@redhat.com> CC: Robert Love <rlove@rlove.org> CC: John McCutchan <john@johnmccutchan.com> CC: Amir Goldstein <amir73il@gmail.com> Acked-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
2017-08-15sparc64: vcc: Enable VCC module in linuxJag Raman1-0/+1
Enables the Virtual Console Concentrator (VCC) module in linux kernel Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> Reviewed-by: Liam Merwick <liam.merwick@oracle.com> Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+1
2017-08-15Backmerge tag 'v4.13-rc5' into drm-nextDave Airlie1-6/+21
Linux 4.13-rc5 There's a really nasty nouveau collision, hopefully someone can take a look once I pushed this out.