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2015-08-13extcon: palmas: Fix build break due to devm_gpiod_get_optional API changeChanwoo Choi
With commit b17d1bf16cc7 ("gpio: make flags mandatory for gpiod_get functions") it becomes necessary to pass the flags argument. And this patch adds the gpio header file to fix the build breakage when build testing with random configuration files. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2015-08-13mac80211: fix invalid read in minstrel_sort_best_tp_rates()Adrien Schildknecht
At the last iteration of the loop, j may equal zero and thus tp_list[j - 1] causes an invalid read. Change the logic of the loop so that j - 1 is always >= 0. Cc: stable@vger.kernel.org Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-08-13spi/spi-xilinx: Fix mixed poll/irq modeRicardo Ribalda Delgado
Once the module process a transfer in irq mode, the next poll transfer will not work because the transmitter is left in inhibited state. Fixes: 22417352f6b7f623 (Use polling mode on small transfers) Reported-by: Edward Kigwana <ekigwana@scires.com> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2015-08-13clk: ti: fix for definition movementStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'rpi-dt-for-armsoc-4.3' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/rpi/linux-rpi into next/dt - New Firmware node and accompanying binding document * tag 'rpi-dt-for-armsoc-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rpi/linux-rpi: dt/bindings: Add binding for the Raspberry Pi firmware driver ARM: bcm2835: Add the firmware driver information to the RPi DT Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13ARM/fb: ep93xx: switch framebuffer to use modedb onlyLinus Walleij
All the EP93xx boards exclusively use modedb to look up video modes from the command line. Root out the parametrization of custom video modes from the platform data and board files and simplify the driver. Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'imx-fixes-4.2-3' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes The i.MX fixes for 4.2, 3rd round: - Fix i.MX6 PCIe interrupt routing which gets missed from stacked IRQ domain conversion. The PCIe wakeup support is currently broken because of this. * tag 'imx-fixes-4.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: imx6: correct i.MX6 PCIe interrupt routing Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'socfpga_dts_for_v4.3_part_2' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/dt SoCFPGA DTS updates for v4.3, take 2 - Add DTS property "altr,modrst-offset" for reset driver to use - Add updated reset defines for the reset driver - Add reset property for EMACs on Arria10 * tag 'socfpga_dts_for_v4.3_part_2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux: ARM: socfpga: dts: Add resets for EMACs on Arria10 ARM: socfpga: dts: add "altr,modrst-offset" property dt-bindings: Add reset manager offsets for Arria10 Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'samsung-mach-fixes-4.2' of https://github.com/krzk/linux into fixesOlof Johansson
Two fixes for bugs in Exynos power domain error exit path: 1. kfree() of read-only memory (name of power domain returned by kstrdup_const()), 2. Doubled of_node_put() leading to invalid ref count for OF node. * tag 'samsung-mach-fixes-4.2' of https://github.com/krzk/linux: ARM: EXYNOS: fix double of_node_put() on error path ARM: EXYNOS: Fix potentian kfree() of ro memory Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'v4.3-rockchip32-dts2' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt Some more devicetree changes, including usbphy support for the Cortex-A9 SoCs and actually enabling usb on the rk3066-marsboard, Two more veyron-devices - namely Speedy and Minnie and a fix for the tsadc. One slightly more interesting fix is the blocking of the last 16MB of memory on 4GB rk3288 devices. The rk3288 cannot use this area for dma operations, so things like the mmc or usb controllers regularly fail when trying to read data. This solution mimicks the solution from the ChromeOS kernel, who also do not seem to have found a better solution yet. Here it only moves to the devicetree. As this issue is also present on the arm64 rk3368, any future better solution to this problem would need to describe this in the devicetree as well and could then remove this block. * tag 'v4.3-rockchip32-dts2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: ARM: dts: rockchip: add veyron-minnie board ARM: dts: rockchip: reserve unusable memory region on rk3288 ARM: dts: rockchip: enable usb controller on marsboard ARM: dts: rockchip: add usb phys to Cortex-A9 socs ARM: dts: rockchip: set correct dwc2 params for cortex-a9 socs ARM: dts: rockchip: Add veyron-speedy board ARM: dts: rockchip: Use correct dts properties for tsadc node on veyron Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'v4.3-rockchip32-soc2' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/soc Improve reliability of resume on rk3288 boards. For whatever reason resuming from suspend worked sucessfully on the rk3288-evb but not on other boards, like veyron-devices. Two problems seem to have existed. For one the stabilization delays for pmic and oscillator may have been to short and secondly the shallow suspend seems to need GPIO wakups enabled. Normally this should be covered by the more generic ARMINT wakeups already and the reason for this is still investigated at Rockchip, but meanwhile this makes boards actually resume. * tag 'v4.3-rockchip32-soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend ARM: rockchip: set correct stabilization thresholds in suspend ARM: rockchip: rename osc_switch_to_32k variable Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13ARM: uniphier: drop v7_invalidate_l1 call at secondary entryMasahiro Yamada
This is unnecessary since commit 02b4e2756e01 ("ARM: v7 setup function should invalidate L1 cache"). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'v4.2-next-arm64-2' of https://github.com/mbgg/linux-mediatek into ↵Olof Johansson
next/arm64 Add SMP support for mt6795 SoC. * tag 'v4.2-next-arm64-2' of https://github.com/mbgg/linux-mediatek: ARM64: dts: mt6795: enable basic SMP bringup for MT6795 Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13ARM: at91/defconfig: at91_dt: remove ARM_AT91_ETHERAlexandre Belloni
CONFIG_ARM_AT91_ETHER doesn't exist anymore, both drivers have been merged in the macb driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13ARM: at91/defconfig: at91_dt: enable DRM hlcdc supportJosh Wu
This patch adds drm atmel lcdc, simple panel and backlight options. Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'mvebu-soc-4.3-2' of git://git.infradead.org/linux-mvebu into ↵Olof Johansson
next/drivers mvebu soc changes for v4.3 (part #2) SoC part of the Dove PMU series * tag 'mvebu-soc-4.3-2' of git://git.infradead.org/linux-mvebu: ARM: dove: create a proper PMU driver for power domains, PMU IRQs and resets Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'mvebu-dt-4.3-3' of git://git.infradead.org/linux-mvebu into next/dtOlof Johansson
mvebu dt changes for v4.3 (part #3) - device tree part of the Dove PMU series - converting a new orion5x based platform to dt: Linkstation Mini * tag 'mvebu-dt-4.3-3' of git://git.infradead.org/linux-mvebu: ARM: dts: Convert Linkstation Mini to Device Tree ARM: dt: dove: add GPU power domain description ARM: dt: dove: add video decoder power domain description ARM: dt: dove: wire up RTC interrupt ARM: dt: Add PMU node, making PMU child devices childs of this node Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'at91-ab-dt2' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/dt Second batch of DT changes for 4.3: - Add the slow clock to the nodes that will use it - Add hlcd to the at91sam9x5 and at91sam9n12 - Add touchscreen and touch button support to the at91sam9x5ek * tag 'at91-ab-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (22 commits) ARM: at91/dt: sama5d2: use slow clock where necessary ARM: at91/dt: at91sam9x5dm: add QT1070 touch button controller ARM: at91/dt: at91sam9x5dm: add support for the touschscreen ARM: at91/dt: add drm support for at91sam9n12ek ARM: at91/dt: enable lcd support for at91sam9x5 SoCs ARM: at91/dt: add at91sam9x5-ek Display Module dtsi ARM: at91/dt: include lcd dtsi in at91sam9x5 dtsis ARM: at91/dt: define hlcdc node in at91sam9x5_lcd.dtsi ARM: at91/dt: sama5d4: use slow clock where necessary ARM: at91/dt: sama5d3: use slow clock where necessary ARM: at91/dt: at91sam9x5: use slow clock where necessary ARM: at91/dt: at91sam9rl: use slow clock where necessary ARM: at91/dt: at91sam9n12: use slow clock where necessary ARM: at91/dt: at91sam9g45: use slow clock where necessary ARM: at91/dt: at91sam9263: use slow clock where necessary ARM: at91/dt: at91sam9261: use slow clock where necessary ARM: at91/dt: at91sam9260: use slow clock where necessary ARM: at91/dt: at91rm9200: use slow clock where necessary Documentation: dt: rtc: at91rm9200: add clocks property Documentation: watchdog: at91sam9_wdt: add clocks property ... Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13Merge tag 'kvm-s390-next-20150812' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: fix and feature for kvm/next (4.3) 1. error handling for irq routes 2. Gracefully handle STP time changes s390 supports a protocol for syncing different systems via the stp protocol that will steer the TOD clocks to keep all participating clocks below the round trip time between the system. In case of specific out of sync event Linux can opt-in to accept sync checks. This will result in non-monotonic jumps of the TOD clock, which Linux will correct via time offsets to keep the wall clock time monotonic. Now: KVM guests also base their time on the host TOD, so we need to fixup the offset for them as well.
2015-08-13ARM: gemini: Setup timer3 as free running timerHans Ulli Kroll
In the original driver it is missed to setup a free running driver. This timer is needed for the scheduler. So setup it. Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13ARM: gemini: Use timer1 for clockeventHans Ulli Kroll
Use timer1 as clockevent timer. The old driver uses timer2, which has some issues to setup Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13ARM: gemini: Add missing register definitions for gemini timerHans Ulli Kroll
Add missing register defintions for the gemini clocksource Also do some #define' cleanup to make the code more readable. Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13ARM: ep93xx/timer: Migrate to new 'set-state' interfaceViresh Kumar
Migrate EP93xx driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13drm/i915: Commit planes on each crtc separately.Maarten Lankhorst
This patch is based on the upstream commit 5ac1c4bcf073ad and amended for v4.2 to make sure it works as intended. Repeated calls to begin_crtc_commit can cause warnings like this: [ 169.127746] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616 [ 169.127835] in_atomic(): 0, irqs_disabled(): 1, pid: 1947, name: kms_flip [ 169.127840] 3 locks held by kms_flip/1947: [ 169.127843] #0: (&dev->mode_config.mutex){+.+.+.}, at: [<ffffffff814774bc>] __drm_modeset_lock_all+0x9c/0x130 [ 169.127860] #1: (crtc_ww_class_acquire){+.+.+.}, at: [<ffffffff814774cd>] __drm_modeset_lock_all+0xad/0x130 [ 169.127870] #2: (crtc_ww_class_mutex){+.+.+.}, at: [<ffffffff81477178>] drm_modeset_lock+0x38/0x110 [ 169.127879] irq event stamp: 665690 [ 169.127882] hardirqs last enabled at (665689): [<ffffffff817ffdb5>] _raw_spin_unlock_irqrestore+0x55/0x70 [ 169.127889] hardirqs last disabled at (665690): [<ffffffffc0197a23>] intel_pipe_update_start+0x113/0x5c0 [i915] [ 169.127936] softirqs last enabled at (665470): [<ffffffff8108a766>] __do_softirq+0x236/0x650 [ 169.127942] softirqs last disabled at (665465): [<ffffffff8108ae75>] irq_exit+0xc5/0xd0 [ 169.127951] CPU: 1 PID: 1947 Comm: kms_flip Not tainted 4.1.0-rc4-patser+ #4039 [ 169.127954] Hardware name: LENOVO 2349AV8/2349AV8, BIOS G1ETA5WW (2.65 ) 04/15/2014 [ 169.127957] ffff8800c49036f0 ffff8800cde5fa28 ffffffff817f6907 0000000080000001 [ 169.127964] 0000000000000000 ffff8800cde5fa58 ffffffff810aebed 0000000000000046 [ 169.127970] ffffffff81c5d518 0000000000000268 0000000000000000 ffff8800cde5fa88 [ 169.127981] Call Trace: [ 169.127992] [<ffffffff817f6907>] dump_stack+0x4f/0x7b [ 169.128001] [<ffffffff810aebed>] ___might_sleep+0x16d/0x270 [ 169.128008] [<ffffffff810aed38>] __might_sleep+0x48/0x90 [ 169.128017] [<ffffffff817fc359>] mutex_lock_nested+0x29/0x410 [ 169.128073] [<ffffffffc01635f0>] ? vgpu_write64+0x220/0x220 [i915] [ 169.128138] [<ffffffffc017fddf>] ? ironlake_update_primary_plane+0x2ff/0x410 [i915] [ 169.128198] [<ffffffffc0190e75>] intel_frontbuffer_flush+0x25/0x70 [i915] [ 169.128253] [<ffffffffc01831ac>] intel_finish_crtc_commit+0x4c/0x180 [i915] [ 169.128279] [<ffffffffc00784ac>] drm_atomic_helper_commit_planes+0x12c/0x240 [drm_kms_helper] [ 169.128338] [<ffffffffc0184264>] __intel_set_mode+0x684/0x830 [i915] [ 169.128378] [<ffffffffc018a84a>] intel_crtc_set_config+0x49a/0x620 [i915] [ 169.128385] [<ffffffff817fdd39>] ? mutex_unlock+0x9/0x10 [ 169.128391] [<ffffffff81467b69>] drm_mode_set_config_internal+0x69/0x120 [ 169.128398] [<ffffffff8119b547>] ? might_fault+0x57/0xb0 [ 169.128403] [<ffffffff8146bf93>] drm_mode_setcrtc+0x253/0x620 [ 169.128409] [<ffffffff8145c600>] drm_ioctl+0x1a0/0x6a0 [ 169.128415] [<ffffffff810b3b41>] ? get_parent_ip+0x11/0x50 [ 169.128424] [<ffffffff811e9ab8>] do_vfs_ioctl+0x2f8/0x530 [ 169.128429] [<ffffffff810d0fcd>] ? trace_hardirqs_on+0xd/0x10 [ 169.128435] [<ffffffff812e7676>] ? selinux_file_ioctl+0x56/0x100 [ 169.128439] [<ffffffff811e9d71>] SyS_ioctl+0x81/0xa0 [ 169.128445] [<ffffffff81800697>] system_call_fastpath+0x12/0x6f Solve it by using the newly introduced drm_atomic_helper_commit_planes_on_crtc. The problem here was that the drm_atomic_helper_commit_planes() helper we were using was basically designed to do begin_crtc_commit(crtc #1) begin_crtc_commit(crtc #2) ... commit all planes finish_crtc_commit(crtc #1) finish_crtc_commit(crtc #2) The problem here is that since our hardware relies on vblank evasion, our CRTC 'begin' function waits until we're out of the danger zone in which register writes might wind up straddling the vblank, then disables interrupts; our 'finish' function re-enables interrupts after the registers have been written. The expectation is that the operations between 'begin' and 'end' must be performed without sleeping (since interrupts are disabled) and should happen as quickly as possible. By clumping all of the 'begin' calls together, we introducing a couple problems: * Subsequent 'begin' invocations might sleep (which is illegal) * The first 'begin' ensured that we were far enough from the vblank that we could write our registers safely and ensure they all fell within the same frame. Adding extra delay waiting for subsequent CRTC's wasn't accounted for and could put us back into the 'danger zone' for CRTC #1. This commit solves the problem by using a new helper that allows an order of operations like: for each crtc { begin_crtc_commit(crtc) // sleep (maybe), then disable interrupts commit planes for this specific CRTC end_crtc_commit(crtc) // reenable interrupts } so that sleeps will only be performed while interrupts are enabled and we can be sure that registers for a CRTC will be written immediately once we know we're in the safe zone. The crtc->config->base.crtc update may seem unrelated, but the helper will use it to obtain the crtc for the state. Without the update it will dereference NULL and crash. Changes since v1: - Use Matt Roper's commit message. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> References: https://bugs.freedesktop.org/show_bug.cgi?id=90398 Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-08-13drm/i915: calculate primary visibility changes instead of calling from ↵Maarten Lankhorst
set_config This should be much cleaner, with the same effects. (cherry picked for v4.2 from commit fb9d6cf8c29bfcb0b3c602f7ded87f128d730382) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> References: https://bugs.freedesktop.org/show_bug.cgi?id=90398 Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-08-13drm/i915: Only dither on 6bpc panelsDaniel Vetter
In commit d328c9d78d64ca11e744fe227096990430a88477 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri Apr 10 16:22:37 2015 +0200 drm/i915: Select starting pipe bpp irrespective or the primary plane we started to select the pipe bpp from sink capabilities and not from the primary framebuffer - that one might change (and we don't want to incur a modeset) and sprites might contain higher bpp content too. We also selected dithering on a 8 bpc screen displaying a 24bpp rgb primary, because pipe_bpp is 24 for such a typical 8 bpc sink, but since the commit mentioned above, base_bpp is always the absolute maximum supported by the hardware, e.g., 36 bpp on my Ironlake chip. Iow. the only way to not get dithering would have been to connect a deep color 12 bpc display, so pipe_bpp == 36 == base_bpp. Hence only enable dithering on 6bpc screens where we difinitely and always want it. Cc: Mario Kleiner <mario.kleiner.de@gmail.com> Reported-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-and-tested-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-08-13arm: boot: dts: am4372: add ARM timers and SCU nodesFelipe Balbi
AM437x devices sport SCU, TWD and Global timers, let's add them to DTS so they have a chance to probe and be used by Linux. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-08-13x86/ras: Move AMD MCE injector to arch/x86/ras/Borislav Petkov
This is an x86-specific module and would benefit from being closer to the arch code. Move it there. Update copyright while at it. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/1439396985-12812-14-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Add a wrapper around mce_log() for injectionBorislav Petkov
Will be used by an injector module in a following patch. Additionally, add a missing module export reported by 0-DAY kernel test. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/1439396985-12812-13-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Rename rcu_dereference_check_mce() to mce_log_get_idx_check()Borislav Petkov
The "rcu_" prefix misleads for it being a proper RCU interface which is not. It basically checks whether we're preemptible or holding the chrdev_read mutex. Rename it accordingly. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/1439396985-12812-12-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13RAS: Add a menuconfig option with descriptive textBorislav Petkov
Text taken a previous patch from "Gong Chen" <gong.chen@linux.intel.com>. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Gong Chen <gong.chen@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/1439396985-12812-11-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Reenable CMCI banks when swiching back to interrupt modeXie XiuQi
Zhang Liguang reported the following issue: 1) System detects a CMCI storm on the current CPU. 2) Kernel disables the CMCI interrupt on banks owned by the current CPU and switches to poll mode 3) After the CMCI storm subsides, kernel switches back to interrupt mode 4) We expect the system to reenable the CMCI interrupt on banks owned by the current CPU mce_intel_adjust_timer |-> cmci_reenable |-> cmci_discover # owned banks are ignored here static void cmci_discover(int banks) ... for (i = 0; i < banks; i++) { ... if (test_bit(i, owned)) # ownd banks is ignore here continue; So convert cmci_storm_disable_banks() to cmci_toggle_interrupt_mode() which controls whether to enable or disable CMCI interrupts with its argument. NB: We cannot clear the owned bit because the banks won't be polled, otherwise. See: 27f6c573e0f7 ("x86, CMCI: Add proper detection of end of CMCI storms") for more info. Reported-by: Zhang Liguang <zhangliguang@huawei.com> Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: <stable@vger.kernel.org> # v3.15+ Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: huawei.libin@huawei.com Cc: linux-edac <linux-edac@vger.kernel.org> Cc: rui.xiang@huawei.com Link: http://lkml.kernel.org/r/1439396985-12812-10-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Clear Local MCE opt-in before kexecAshok Raj
kexec could boot a kernel that could be legacy with no knowledge of LMCE. Hence we should make sure we clear LMCE optin before kexec reboot. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/1439396985-12812-9-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Remove unused function declarationsAshok Raj
Remove unused function declarations. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/1439396985-12812-8-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Kill drain_mcelog_buffer()Borislav Petkov
This used to flush out MCEs logged during early boot and which were in the MCA registers from a previous system run. No need for that now, since we've moved to a genpool. Suggested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1439396985-12812-7-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Avoid potential deadlock due to printk() in MCE contextChen, Gong
Printing in MCE context is a no-no, currently, as printk() is not NMI-safe. If some of the notifiers on the MCE chain call do so, we may deadlock. In order to avoid that, delay printk() to process context where it is safe. Reported-by: Xie XiuQi <xiexiuqi@huawei.com> Signed-off-by: Chen, Gong <gong.chen@linux.intel.com> [ Fold in subsequent patch from Boris for early boot logging. ] Signed-off-by: Tony Luck <tony.luck@intel.com> [ Kick irq_work in mce_log() directly. ] Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1439396985-12812-6-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Remove the MCE ring for Action Optional errorsChen, Gong
Use unified genpool to save Action Optional error events and put Action Optional error handling in the same notification chain as MCE error decoding. Signed-off-by: Chen, Gong <gong.chen@linux.intel.com> [ Fold in subsequent patch from Boris for early boot logging. ] Signed-off-by: Tony Luck <tony.luck@intel.com> [ Correct a lot. ] Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1439396985-12812-5-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Don't use percpu workqueuesChen, Gong
An MCE is a rare event. Therefore, there's no need to have per-CPU instances of both normal and IRQ workqueues. Make them both global. Signed-off-by: Chen, Gong <gong.chen@linux.intel.com> [ Fold in subsequent patch from Rui/Boris/Tony for early boot logging. ] Signed-off-by: Tony Luck <tony.luck@intel.com> [ Massage commit message. ] Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1439396985-12812-4-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Provide a lockless memory pool to save error recordsChen, Gong
printk() is not safe to use in MCE context. Add a lockless memory allocator pool to save error records in MCE context. Those records will be issued later, in a printk-safe context. The idea is inspired by the APEI/GHES driver. We're very conservative and allocate only two pages for it but since we're going to use those pages throughout the system's lifetime, we allocate them statically to avoid early boot time allocation woes. Signed-off-by: Chen, Gong <gong.chen@linux.intel.com> [ Rewrite. ] Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/1439396985-12812-3-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13x86/mce: Reuse one of the u16 padding fields in 'struct mce'Borislav Petkov
... to save the error severity of the MCE and whether the reported address of the error is usable. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/1439396985-12812-2-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13memory: kill off set_irq_flags usageRob Herring
set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also set IRQ_NOPROBE and this has been maintained although it is not clear that is really needed. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Roger Quadros <rogerq@ti.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-08-13Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Allow selecting the type of callchains per event, including disabling callchains in all but one entry in an event list, to save space, and also to ask for the callchains collected in one event to be used in other events. (Kan Liang) - Beautify more syscall arguments in 'perf trace': (Arnaldo Carvalho de Melo) - A bunch more translate file/pathnames from pointers to strings. - Convert numbers to strings for the 'keyctl' syscall 'option' arg. - Add missing 'clockid' entries. - Fix 'perf probe -L sys_*' as it was not showing all the source code for syscall functions in the kernel. (Masami Hiramatsu) - Make ESC unzoom as well in the hists browser, i.e. in 'report' and 'top', as we're considering repurposing the right and left arrow keys to use in horizontal scrolling, i.e. leave just ESC to be used for what <- works now, and ENTER for what -> does (they are already aliases for ages). (Arnaldo Carvalho de Melo) Infrastructure fixes: - Check for SRCLINE_UNKNOWN case in "srcfile" processing (Andi Kleen) - Wrap the slsmg_{printf,write_nstring} slang functions behind ui_browser, so that we can make the ui_browser based browsers (annotate, menus, hists, etc) UI library agnostic and usable with multiple backends (slang now, GTK+ and others in the future, maybe) (Arnaldo Carvalho de Melo) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13crypto: caam - Remove unneeded 'ret' variableFabio Estevam
Variable 'ret' is only used for returning the value 0. We can make it simpler and just return 0 instead. The semantic patch that makes this change is available in scripts/coccinelle/misc/returnvar.cocci. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-13crypto: caam - Fix error handling in caam_rng_init()Fabio Estevam
In the error paths we should free the resources that were previously acquired, so fix it accordingly. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Horia Geant? <horia.geanta@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-13crypto: qat - fix simple_return.cocci warningsWu Fengguang
drivers/crypto/qat/qat_common/adf_sriov.c:258:1-4: WARNING: end returns can be simpified and declaration on line 212 can be dropped Simplify a trivial if-return sequence. Possibly combine with a preceding function call. Generated by: scripts/coccinelle/misc/simple_return.cocci CC: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-13crypto: qat - Fix unmet direct dependencies for QAT_DH895xCCVFTadeusz Struk
Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-13ARM: dts: sun6i: Add security system crypto engine clock and device nodesChen-Yu Tsai
A31/A31s have the same "Security System" crypto engine as A10/A20, but with a separate reset control. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-13crypto: sunxi-ss - Add optional reset control supportChen-Yu Tsai
On sun6i and later platforms, the reset control is split out of the clock gates. Add support for an optional reset control. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-13crypto: sunxi-ss - Document optional reset control bindingsChen-Yu Tsai
Later Allwinner SoCs split out the reset controls for individual modules out of the clock gate controls. The "Security System" crypto engine is no different. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-13crypto: caam - fix memory corruption in ahash_final_ctxHoria Geant?
When doing pointer operation for accessing the HW S/G table, a value representing number of entries (and not number of bytes) must be used. Cc: <stable@vger.kernel.org> # 3.6+ Fixes: 045e36780f115 ("crypto: caam - ahash hmac support") Signed-off-by: Horia Geant? <horia.geanta@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
generated by cgit (git 2.34.1) at 2025-09-24 05:27:35 +0000