- 30 May, 2017 18 commits
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Chuanxiao Dong authored
GVT-g relies on the enable_execlists parameter in i915. If this option is not enabled for GVT-g, should return -EIO to make i915 driver loading failed. v2: - Use DMR_ERROR as it is a fatal message. (Chris) Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Chuanxiao Dong authored
The intel_gvt_sanitize_options will sanitize the GVT related options before doing initialize the GVT. Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Chris Wilson authored
I have a plan to write a quick test to exercise concurrent usage of i915_gem_shrink(), the simplest way looks to be to have multiple threads using debugfs/i915_drop_caches. However, we currently take one lock over the entire function, serialising the calls into i915_gem_shrink() so reduce the lock coverage. Testcase: igt/gem_shrink/reclaim Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170524162653.5446-1-chris@chris-wilson.co.ukReviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Chris Wilson authored
Add kerneldoc for the vma_list stored on the i915_gem_object, in particular, documenting the expected ordering of elements -- i.e. that we do expect GGTT VMA first followed by the ppGTT VMA. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170525204818.12044-1-chris@chris-wilson.co.ukReviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Maarten Lankhorst authored
SDVO was the last connector that's still using the legacy paths for properties, and this is with a reason! This connector implements a lot of properties dynamically, and some of them shared with the digital connector state, so sdvo_connector_state subclasses intel_digital_connector_state. set_property had a lot of validation, but this is handled in the drm core, so most of the validation can die off. The properties are written right before enabling the connector, since there is no good way to update the properties without crtc. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-13-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
Do the same as other connectors, attempt to detect hdmi audio in the detect() callback, and only use the force_audio property as override. Compute has_audio in pipe_config, and use that value instead of the probed value directly. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-12-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
intel_hdmi supports 3 properties, force_audio, broadcast rgb and scaling mode. The last one is only created for eDP, so the is_eDP in set_property is not required. panel fitting and broadcast rgb are straightforward and only requires changing compute_config. force_audio is also used to force DVI mode, which means changes to compute_config and mode_valid. mode_valid is called with connection_mutex held, so it can safely dereference connector->state. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-11-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
intel_dp supports 3 properties, scaling mode, broadcast rgb and force_audio. intel_digital_connector handles the plumbing, so we only have to hook this up in compute_config and init. Changes since v1: - Remove limited_color_range too, unused. (danvet) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-10-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
Always detect if audio is available during edid detection. With less magic switching it's easier to convert the dp connector properties to atomic. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-9-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-8-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-7-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
Some atomic properties are common between the various kinds of connectors, for example a lot of them use panel fitting mode. It makes sense to put a lot of it in a common place, so each connector can use it while they're being converted. Implement the properties required for the connectors: - scaling mode property - force audio property - broadcast rgb - aspect ratio While at it, make clear that intel_digital_connector_atomic_get_property is a hack that has to be removed when all connector properties are converted to atomic. Changes since v1: - Scaling mode and aspect ratio are partly handled in core now. Changes since v2: - Split out the scaling mode / aspect ratio changes to a preparation patch. - Use mode_changed for panel fitter, changes to this property are checked by fastset. - Allowed_scaling_modes is removed, handled through core now. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-6-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
None of the intel connectors can use all types of scaling modes, so only try the ones that are possible. This is another preparation for connectors towards conversion to atomic. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-5-maarten.lankhorst@linux.intel.com [mlankhorst: Use renamed drm_connector_attach_scaling_mode_property function]
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Maarten Lankhorst authored
The first step in converting connector properties to atomic is wiring up the atomic state. We're still not completely supoprting the scaling mode in the atomic case, but this is the first step towards it. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-4-maarten.lankhorst@linux.intel.com
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Kai Chen authored
This is a follow-up patch to the previous patch ([PATCH[1/2] drm/i915: Disable decoupled MMIO) to remove the dead code for decoupled MMIO implementation, as it won't be used any longer on GEN9LP. Therefore, this patch reverts: commit 85ee17eb Author: Praveen Paneri <praveen.paneri@intel.com> Date: Tue Nov 15 22:49:20 2016 +0530 drm/i915/bxt: Broxton decoupled MMIO Signed-off-by: Kai Chen <kai.chen@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170523215812.18328-3-kai.chen@intel.com
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Kai Chen authored
The decoupled MMIO feature doesn't work as intended by HW team. Enabling it with forcewake will only make debugging efforts more difficult, so let's disable it. Fixes: 85ee17eb ("drm/i915/bxt: Broxton decoupled MMIO") Cc: Zhe Wang <zhe1.wang@intel.com> Cc: Praveen Paneri <praveen.paneri@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Cc: <stable@vger.kernel.org> # v4.10+ Signed-off-by: Kai Chen <kai.chen@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170523215812.18328-2-kai.chen@intel.com
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Dave Airlie authored
Linux 4.12-rc3 Daniel has requested this for some drm-intel-next work.
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git://anongit.freedesktop.org/git/drm-intelDave Airlie authored
More stuff for 4.13: - skl+ wm fixes from Mahesh Kumar - some refactor and tests for i915_sw_fence (Chris) - tune execlist/scheduler code (Chris) - g4x,g33 gpu reset improvements (Chris, Mika) - guc code cleanup (Michal Wajdeczko, Michał Winiarski) - dp aux backlight improvements (Puthikorn Voravootivat) - buffer based guc/host communication (Michal Wajdeczko) * tag 'drm-intel-next-2017-05-29' of git://anongit.freedesktop.org/git/drm-intel: (253 commits) drm/i915: Update DRIVER_DATE to 20170529 drm/i915: Keep the forcewake timer alive for 1ms past the most recent use drm/i915/guc: capture GuC logs if FW fails to load drm/i915/guc: Introduce buffer based cmd transport drm/i915/guc: Disable send function on fini drm: Add definition for eDP backlight frequency drm/i915: Drop AUX backlight enable check for backlight control drm/i915: Consolidate #ifdef CONFIG_INTEL_IOMMU drm/i915: Only GGTT vma may be pinned and prevent shrinking drm/i915: Serialize GTT/Aperture accesses on BXT drm/i915: Convert i915_gem_object_ops->flags values to use BIT() drm/i915/selftests: Silence compiler warning in igt_ctx_exec drm/i915/guc: Skip port assign on first iteration of GuC dequeue drm/i915: Remove misleading comment in request_alloc drm/i915/g33: Improve reset reliability Revert "drm/i915: Restore lost "Initialized i915" welcome message" drm/i915/huc: Update GLK HuC version drm/i915: Check for allocation failure drm/i915/guc: Remove action status and statistics from debugfs drm/i915/g4x: Improve gpu reset reliability ...
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- 29 May, 2017 2 commits
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Daniel Vetter authored
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Linus Torvalds authored
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- 28 May, 2017 2 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermalLinus Torvalds authored
Pull thermal SoC management fixes from Eduardo Valentin: - fixes to TI SoC driver, Broadcom, qoriq - small sparse warning fix on thermal core * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: thermal: broadcom: ns-thermal: default on iProc SoCs ti-soc-thermal: Fix a typo in a comment line ti-soc-thermal: Delete error messages for failed memory allocations in ti_bandgap_build() ti-soc-thermal: Use devm_kcalloc() in ti_bandgap_build() thermal: core: make thermal_emergency_poweroff static thermal: qoriq: remove useless call for of_thermal_get_trip_points()
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git://anongit.freedesktop.org/git/drm-miscDave Airlie authored
UAPI Changes: - Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ defines to the UAPI (Robert) Cross-subsystem Changes: - Standardize sync_file.txt documentation format (Mauro) Core Changes: - Turf drm_[cm]alloc functions for kvmalloc alternatives (Michal) - Add optional mode_valid() hook to crtc/encoder/bridge (Jose) - Improve documentation around mode validation/alteration (Daniel) - Reduce sync_file construction time by deferring name creation (Chris) Driver Changes: - pl111: Wire up the clock divider and add debugfs (Eric) - various: Fix include notation and remove -Iinclude/drm (Masahiro) - stm: Add Benjamin Gaignard and Vincent Abriou as STM maintainers (Vincent) - various: Miscellaneous trivial fixes to pl111/stm/vgem/vc4 Cc: Michal Hocko <mhocko@suse.com> Cc: Eric Anholt <eric@anholt.net> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Robert Foss <robert.foss@collabora.com> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com> * tag 'drm-misc-next-2017-05-26' of git://anongit.freedesktop.org/git/drm-misc: (55 commits) dma-buf/sync-file: Defer creation of sync_file->name sync_file.txt: standardize document format gpu: drm: gma500: remove two more dead variable drm/doc: Clarify mode_fixup vs. atomic_check a bit more drm/doc: Document adjusted/request modes a bit better drm: Add crtc/encoder/bridge->mode_valid() callbacks MAINTAINERS: update drm/stm maintainers list drm/stm: ltdc: fix duplicated arguments drm/pl111: Fix return value check in pl111_amba_probe() drm/amd: include <linux/delay.h> instead of "linux/delay.h" drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI drm/vgem: Fix return value check in vgem_init() drm/blend: Fix comment typ-o drm/stm: remove unneeded -Iinclude/drm compiler flag drm/vc4: fix include notation and remove -Iinclude/drm flag drm/pl111: Add a debugfs node to dump our registers. drm/pl111: make structure mode_config_funcs static drm/pl111: make structure pl111_display_funcs static drm/pl111: Register the clock divider and use it. drm: drop drm_[cm]alloc* helpers ...
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- 27 May, 2017 14 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial fixes from Greg KH: "Here are some serial and tty fixes for 4.12-rc3. They are a bit bigger than normal, which is why I had them bake in linux-next for a few weeks and didn't send them to you for -rc2. They revert a few of the serdev patches from 4.12-rc1, and bring things back to how they were in 4.11, to try to make things a bit more stable there. Rob and Johan both agree that this is the way forward, so this isn't people squabbling over semantics. Other than that, just a few minor serial driver fixes that people have had problems with. All of these have been in linux-next for a few weeks with no reported issues" * tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: serial: altera_uart: call iounmap() at driver remove serial: imx: ensure UCR3 and UFCR are setup correctly MAINTAINERS/serial: Change maintainer of jsm driver serial: enable serdev support tty/serdev: add serdev registration interface serdev: Restore serdev_device_write_buf for atomic context serial: core: fix crash in uart_suspend_port tty: fix port buffer locking tty: ehv_bytechan: clean up init error handling serial: ifx6x60: fix use-after-free on module unload serial: altera_jtaguart: adding iounmap() serial: exar: Fix stuck MSIs serial: efm32: Fix parity management in 'efm32_uart_console_get_options()' serdev: fix tty-port client deregistration Revert "tty_port: register tty ports with serdev bus" drivers/tty: 8250: only call fintek_8250_probe when doing port I/O
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: "Fix running SPU programs on Cell, and a few other minor fixes. Thanks to Alistair Popple, Jeremy Kerr, Michael Neuling, Nicholas Piggin" * tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc: Add PPC_FEATURE userspace bits for SCV and DARN instructions powerpc/spufs: Fix hash faults for kernel regions powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N powerpc/powernv/npu-dma.c: Fix opal_npu_destroy_context() call selftests/powerpc: Fix TM resched DSCR test with some compilers
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "A series of fixes for X86: - The final fix for the end-of-stack issue in the unwinder - Handle non PAT systems gracefully - Prevent access to uninitiliazed memory - Move early delay calaibration after basic init - Fix Kconfig help text - Fix a cross compile issue - Unbreak older make versions" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/timers: Move simple_udelay_calibration past init_hypervisor_platform x86/alternatives: Prevent uninitialized stack byte read in apply_alternatives() x86/PAT: Fix Xorg regression on CPUs that don't support PAT x86/watchdog: Fix Kconfig help text file path reference to lockup watchdog documentation x86/build: Permit building with old make versions x86/unwind: Add end-of-stack check for ftrace handlers Revert "x86/entry: Fix the end of the stack for newly forked tasks" x86/boot: Use CROSS_COMPILE prefix for readelf
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixlet from Thomas Gleixner: "Silence dmesg spam by making the posix cpu timer printks depend on print_fatal_signals" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: posix-timers: Make signal printks conditional
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RAS fixes from Thomas Gleixner: "Two fixlets for RAS: - Export memory_error() so the NFIT module can utilize it - Handle memory errors in NFIT correctly" * 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: acpi, nfit: Fix the memory error check in nfit_handle_mce() x86/MCE: Export memory_error()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf tooling fixes from Thomas Gleixner: - Synchronization of tools and kernel headers - A series of fixes for perf report addressing various failures: * Handle invalid maps proper * Plug a memory leak * Handle frames and callchain order correctly - Fixes for handling inlines and children mode * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/include: Sync kernel ABI headers with tooling headers perf tools: Put caller above callee in --children mode perf report: Do not drop last inlined frame perf report: Always honor callchain order for inlined nodes perf script: Add --inline option for debugging perf report: Fix off-by-one for non-activation frames perf report: Fix memory leak in addr2line when called by addr2inlines perf report: Don't crash on invalid maps in `-g srcline` mode
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking fix from Thomas Gleixner: "A fix for a state leak which was introduced in the recent rework of futex/rtmutex interaction" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull kthread fix from Thomas Gleixner: "A single fix which prevents a use after free when kthread fork fails" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kthread: Fix use-after-free if kthread fork fails
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull ftrace fixes from Steven Rostedt: "There's been a few memory issues found with ftrace. One was simply a memory leak where not all was being freed that should have been in releasing a file pointer on set_graph_function. Then Thomas found that the ftrace trampolines were marked for read/write as well as execute. To shrink the possible attack surface, he added calls to set them to ro. Which also uncovered some other issues with freeing module allocated memory that had its permissions changed. Kprobes had a similar issue which is fixed and a selftest was added to trigger that issue again" * tag 'trace-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: x86/ftrace: Make sure that ftrace trampolines are not RWX x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range() selftests/ftrace: Add a testcase for many kprobe events kprobes/x86: Fix to set RWX bits correctly before releasing trampoline ftrace: Fix memory leak in ftrace_graph_release()
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Thomas Gleixner authored
ftrace use module_alloc() to allocate trampoline pages. The mapping of module_alloc() is RWX, which makes sense as the memory is written to right after allocation. But nothing makes these pages RO after writing to them. Add proper set_memory_rw/ro() calls to protect the trampolines after modification. Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1705251056410.1862@nanosSigned-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Steven Rostedt (VMware) authored
With function tracing starting in early bootup and having its trampoline pages being read only, a bug triggered with the following: kernel BUG at arch/x86/mm/pageattr.c:189! invalid opcode: 0000 [#1] SMP Modules linked in: CPU: 0 PID: 0 Comm: swapper Not tainted 4.12.0-rc2-test+ #3 Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 task: ffffffffb4222500 task.stack: ffffffffb4200000 RIP: 0010:change_page_attr_set_clr+0x269/0x302 RSP: 0000:ffffffffb4203c88 EFLAGS: 00010046 RAX: 0000000000000046 RBX: 0000000000000000 RCX: 00000001b6000000 RDX: ffffffffb4203d40 RSI: 0000000000000000 RDI: ffffffffb4240d60 RBP: ffffffffb4203d18 R08: 00000001b6000000 R09: 0000000000000001 R10: ffffffffb4203aa8 R11: 0000000000000003 R12: ffffffffc029b000 R13: ffffffffb4203d40 R14: 0000000000000001 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff9a639ea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff9a636b384000 CR3: 00000001ea21d000 CR4: 00000000000406b0 Call Trace: change_page_attr_clear+0x1f/0x21 set_memory_ro+0x1e/0x20 arch_ftrace_update_trampoline+0x207/0x21c ? ftrace_caller+0x64/0x64 ? 0xffffffffc029b000 ftrace_startup+0xf4/0x198 register_ftrace_function+0x26/0x3c function_trace_init+0x5e/0x73 tracer_init+0x1e/0x23 tracing_set_tracer+0x127/0x15a register_tracer+0x19b/0x1bc init_function_trace+0x90/0x92 early_trace_init+0x236/0x2b3 start_kernel+0x200/0x3f5 x86_64_start_reservations+0x29/0x2b x86_64_start_kernel+0x17c/0x18f secondary_startup_64+0x9f/0x9f ? secondary_startup_64+0x9f/0x9f Interrupts should not be enabled at this early in the boot process. It is also fine to leave interrupts enabled during this time as there's only one CPU running, and on_each_cpu() means to only run on the current CPU. If early_boot_irqs_disabled is set, it is safe to run cpu_flush_range() with interrupts disabled. Don't trigger a BUG_ON() in that case. Link: http://lkml.kernel.org/r/20170526093717.0be3b849@gandalf.local.homeSuggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Masami Hiramatsu authored
Add a testcase to test kprobes via ftrace interface with many concurrent kprobe events. This tries to add many kprobe events (up to 256) on kernel functions. To avoid making ftrace-based kprobes (kprobes on fentry), it skips first N bytes (on x86 N=5, on ppc or arm N=4) of function entry. After that, it enables all those events, disable it, and remove it. Since the unoptimization buffer reclaiming will be delayed, after removing events, it will wait enough time. Link: http://lkml.kernel.org/r/149577388470.11702.11832460851769204511.stgit@devboxSigned-off-by: Masami Hiramatsu <mhiramat@kernel.org> Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Masami Hiramatsu authored
Fix kprobes to set(recover) RWX bits correctly on trampoline buffer before releasing it. Releasing readonly page to module_memfree() crash the kernel. Without this fix, if kprobes user register a bunch of kprobes in function body (since kprobes on function entry usually use ftrace) and unregister it, kernel hits a BUG and crash. Link: http://lkml.kernel.org/r/149570868652.3518.14120169373590420503.stgit@devboxSigned-off-by: Masami Hiramatsu <mhiramat@kernel.org> Fixes: d0381c81 ("kprobes/x86: Set kprobes pages read-only") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Luis Henriques authored
ftrace_hash is being kfree'ed in ftrace_graph_release(), however the ->buckets field is not. This results in a memory leak that is easily captured by kmemleak: unreferenced object 0xffff880038afe000 (size 8192): comm "trace-cmd", pid 238, jiffies 4294916898 (age 9.736s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff815f561e>] kmemleak_alloc+0x4e/0xb0 [<ffffffff8113964d>] __kmalloc+0x12d/0x1a0 [<ffffffff810bf6d1>] alloc_ftrace_hash+0x51/0x80 [<ffffffff810c0523>] __ftrace_graph_open.isra.39.constprop.46+0xa3/0x100 [<ffffffff810c05e8>] ftrace_graph_open+0x68/0xa0 [<ffffffff8114003d>] do_dentry_open.isra.1+0x1bd/0x2d0 [<ffffffff81140df7>] vfs_open+0x47/0x60 [<ffffffff81150f95>] path_openat+0x2a5/0x1020 [<ffffffff81152d6a>] do_filp_open+0x8a/0xf0 [<ffffffff811411df>] do_sys_open+0x12f/0x200 [<ffffffff811412ce>] SyS_open+0x1e/0x20 [<ffffffff815fa6e0>] entry_SYSCALL_64_fastpath+0x13/0x94 [<ffffffffffffffff>] 0xffffffffffffffff Link: http://lkml.kernel.org/r/20170525152038.7661-1-lhenriques@suse.com Cc: stable@vger.kernel.org Fixes: b9b0c831 ("ftrace: Convert graph filter to use hash tables") Signed-off-by: Luis Henriques <lhenriques@suse.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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- 26 May, 2017 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input layer fixes from Dmitry Torokhov: "Just a few fixups to a couple of drivers" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: elan_i2c - ignore signals when finishing updating firmware Input: elan_i2c - clear INT before resetting controller Input: atmel_mxt_ts - add T100 as a readable object Input: edt-ft5x06 - increase allowed data range for threshold parameter
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Linus Torvalds authored
Merge tag 'led_fixes_for_4-12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED fix from Jacek Anaszewski: "A single LED fix for 4.12-rc3. leds-pca955x driver uses only i2c_smbus API and thus it should pass I2C_FUNC_SMBUS_BYTE_DATA flag to i2c_check_functionality" * tag 'led_fixes_for_4-12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: pca955x: Correct I2C Functionality
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Fix state pruning in bpf verifier wrt. alignment, from Daniel Borkmann. 2) Handle non-linear SKBs properly in SCTP ICMP parsing, from Davide Caratti. 3) Fix bit field definitions for rss_hash_type of descriptors in mlx5 driver, from Jesper Brouer. 4) Defer slave->link updates until bonding is ready to do a full commit to the new settings, from Nithin Sujir. 5) Properly reference count ipv4 FIB metrics to avoid use after free situations, from Eric Dumazet and several others including Cong Wang and Julian Anastasov. 6) Fix races in llc_ui_bind(), from Lin Zhang. 7) Fix regression of ESP UDP encapsulation for TCP packets, from Steffen Klassert. 8) Fix mdio-octeon driver Kconfig deps, from Randy Dunlap. 9) Fix regression in setting DSCP on ipv6/GRE encapsulation, from Peter Dawson. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits) ipv4: add reference counting to metrics net: ethernet: ax88796: don't call free_irq without request_irq first ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets sctp: fix ICMP processing if skb is non-linear net: llc: add lock_sock in llc_ui_bind to avoid a race condition bonding: Don't update slave->link until ready to commit test_bpf: Add a couple of tests for BPF_JSGE. bpf: add various verifier test cases bpf: fix wrong exposure of map_flags into fdinfo for lpm bpf: add bpf_clone_redirect to bpf_helper_changes_pkt_data bpf: properly reset caller saved regs after helper call and ld_abs/ind bpf: fix incorrect pruning decision when alignment must be tracked arp: fixed -Wuninitialized compiler warning tcp: avoid fastopen API to be used on AF_UNSPEC net: move somaxconn init from sysctl code net: fix potential null pointer dereference geneve: fix fill_info when using collect_metadata virtio-net: enable TSO/checksum offloads for Q-in-Q vlans be2net: Fix offload features for Q-in-Q packets vlan: Fix tcp checksum offloads in Q-in-Q vlans ...
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull XFS fixes from Darrick Wong: "A few miscellaneous bug fixes & cleanups: - Fix indlen block reservation accounting bug when splitting delalloc extent - Fix warnings about unused variables that appeared in -rc1. - Don't spew errors when bmapping a local format directory - Fix an off-by-one error in a delalloc eof assertion - Make fsmap only return inode information for CAP_SYS_ADMIN - Fix a potential mount time deadlock recovering cow extents - Fix unaligned memory access in _btree_visit_blocks - Fix various SEEK_HOLE/SEEK_DATA bugs" * tag 'xfs-4.12-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: Move handling of missing page into one place in xfs_find_get_desired_pgoff() xfs: Fix off-by-in in loop termination in xfs_find_get_desired_pgoff() xfs: Fix missed holes in SEEK_HOLE implementation xfs: fix off-by-one on max nr_pages in xfs_find_get_desired_pgoff() xfs: fix unaligned access in xfs_btree_visit_blocks xfs: avoid mount-time deadlock in CoW extent recovery xfs: only return detailed fsmap info if the caller has CAP_SYS_ADMIN xfs: bad assertion for delalloc an extent that start at i_size xfs: fix warnings about unused stack variables xfs: BMAPX shouldn't barf on inline-format directories xfs: fix indlen accounting error on partial delalloc conversion
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