- 10 Jan, 2017 21 commits
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Chris Wilson authored
It has been some time since i915_gem_engine_cleanup was only called from the module unload path, and now it is only called when the GPU is wedged. Mika complained that the name is confusing, especially in light of the existence of i915_gem_cleanup_engines(). Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170110172246.27297-5-chris@chris-wilson.co.uk
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Chris Wilson authored
Similarly to a normal reset, after we mark the GPU as wedged (completely fubar and no more requests can be executed), set the error status on all the in flight requests. Signed-off-by:
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Chris Wilson authored
Let userspace know if its request was resubmitted due to it being executed at the time of a global reset. In this case, the reset was for a guilty request on another engine, and this request was an innocent victim that will be re-executed upon restarting. However, since it was running at the time of the reset, we can not guarantee that it suffered no ill-effects from the reset (e.g. some context state may be lost, or some self-modifying fragment shaders will be restarted from the final state not their initial state), to let userspace know that it has been corrupted set a special value on the fence->error, -EAGAIN. If the request does hang on resubmission, the error will be overwritten with -EIO. Signed-off-by:
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Chris Wilson authored
The struct dma_fence carries a status field exposed to userspace by sync_file. This is inspected after the fence is signaled and can convey whether or not the request completed successfully, or in our case if we detected a hang during the request (signaled via -EIO in SYNC_IOC_FILE_INFO). v2: Mark all cancelled requests as failed. Signed-off-by:
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Chris Wilson authored
Always reset the requests of the guilty context, including the hung request that we tell the hardware to skip. This should help if the reprogram fails entirely, but more importantly makes the guilty path more uniform (and simplifies the subsequent patch to tweak the cancelled requests). Signed-off-by:
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Tomeu Vizoso authored
Use drm_accurate_vblank_count so we have the full 32 bit to represent the frame counter and userspace has a simpler way of knowing when the counter wraps around. Signed-off-by:
Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by:
Emil Velikov <emil.velikov@collabora.com> Reviewed-by:
Robert Foss <robert.foss@collabora.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170110134305.26326-3-tomeu.vizoso@collabora.com
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Tomeu Vizoso authored
The core provides now an ABI to userspace for generation of frame CRCs, so implement the ->set_crc_source() callback and reuse as much code as possible with the previous ABI implementation. When handling the pageflip interrupt, we skip 1 or 2 frames depending on the HW because they contain wrong values. For the legacy ABI for generating frame CRCs, this was done in userspace but now that we have a generic ABI it's better if it's not exposed by the kernel. v2: - Leave the legacy implementation in place as the ABI implementation in the core is incompatible with it. v3: - Use the "cooked" vblank counter so we have a whole 32 bits. - Make sure we don't mess with the state of the legacy CRC capture ABI implementation. v4: - Keep use of get_vblank_counter as in the legacy code, will be changed in a followup commit. v5: - Skip first frame or two as it's known that they contain wrong data. - A few fixes suggested by Emil Velikov. v6: - Rework programming of the HW registers to preserve previous behavior. v7: - Address whitespace issue. - Added a comment on why in the implementation of the new ABI we skip the 1st or 2nd frames. v9: - Add stub for intel_crtc_set_crc_source. v12: - Rebased. - Remove stub for intel_crtc_set_crc_source and instead set the callback to NULL (Jani Nikula). v15: - Rebased. Signed-off-by: -
Daniel Vetter authored
Pull in latest drm-next from Dave Airlie to get at all the drm-misc goodies, specifically: - dma_fence error state handling rework (Chris needs that for error recovery) - crc support locking changes (Tomeu's i915 crc patches need that). Signed-off-by:Daniel Vetter <daniel.vetter@intel.com>
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Chris Wilson authored
Expose an interface for changing the tiling and stride on an object, that includes the complexity of checking for conflicting bindings and fence registers. Signed-off-by:
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Chris Wilson authored
Make it clear that these functions are the user entry points for the tiling/fence registers. Signed-off-by:
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Chris Wilson authored
The VMA is later clipped against the vm_area_struct before insertion of the faulting PTE so we are free to create the partial view as we desire. If we use the object as the extents rather than the area, this partial can then be used for other areas. Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170110095633.6612-2-chris@chris-wilson.co.uk
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Chris Wilson authored
In order to reuse the partial view for selftesting, extract the common function for computing the view. Signed-off-by:
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Michel Thierry authored
Commit cc3f90f0 ("drm/i915/glk: Reuse broxton code for geminilake") missed a few of occurences of IS_BROXTON() that should have been coverted to IS_GEN9_LP(). v2: Cite the right commit. (Ander) Fixes: cc3f90f0 ("drm/i915/glk: Reuse broxton code for geminilake") Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Signed-off-by:
Michel Thierry <michel.thierry@intel.com> Signed-off-by:
Tomasz Lis <tomasz.lis@intel.com> Signed-off-by:
Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Reviewed-by: Tomasz Lis <tomasz.lis@intel.com> (v1) Reviewed-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1483973495-15138-1-git-send-email-ander.conselvan.de.oliveira@intel.com
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Rodrigo Vivi authored
Besides having the DMC firmware in place and loaded let's handle runtime suspend and dc9 as we do for Broxton. Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by:
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Anusha Srivatsa authored
This patch loads the DMC on GLK. There is a single firmware image for all steppings on a GLK. Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
Anusha Srivatsa <anusha.srivatsa@intel.com> Reviewed-by:
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Chris Wilson authored
Rename i915_gem_get_ggtt_size() and i915_gem_get_ggtt_alignment() to i915_gem_fence_size() and i915_gem_fence_alignment() respectively to better match usage. Similarly move the pair of functions into i915_gem_tiling.c next to the fence restrictions. Suggested-by:
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Chris Wilson authored
Restricting the fence to the end of the previous tile-row breaks access to the final portion of the object. On gen2/3 we employed lazy fencing to pad out the fence with scratch page to provide access to the tail, and now we also pad out the object on gen4+ we can apply the same fix. Fixes: af1a7301 ("drm/i915: Only fence tiled region of object.") Signed-off-by:
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Chris Wilson authored
The fence size/alignment is a combination of the vma size plus object tiling parameters. Those parameters are rarely changed, making the fence size/alignemnt roughly constant for the lifetime of the VMA. We can simplify subsequent calculations by precalculating the size/alignment required for GGTT vma taking fencing into account (with an update if we do change the tiling or stride). Signed-off-by:
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Chris Wilson authored
All of these conditions are prechecked by i915_tiling_ok() before we allow setting the tiling/stride on the object and so we should never fail asserting those conditions before writing the register. Signed-off-by:
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Chris Wilson authored
Ensure the view occupies the full tile row so that reads/writes into the VMA do not escape (via fenced detiling) into neighbouring objects - we will pad the object with scratch pages to satisfy the fence. This applies the lazy-tiling we employed on gen2/3 to gen4+. Signed-off-by:
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Chris Wilson authored
Computing the tile row size of a tiled object (for use with fence registers) is repeated, so extract it to a common helper. Signed-off-by:
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- 09 Jan, 2017 13 commits
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git://anongit.freedesktop.org/git/drm-miscDave Airlie authored
Back to regular -misc pulls with reasonable sizes: - dma_fence error clarification (Chris) - drm_crtc_from_index helper (Shawn), pile more patches on the m-l to roll this out to drivers - mmu-less support for fbdev helpers from Benjamin - piles of kerneldoc work - some polish for crc support from Tomeu and Benjamin - odd misc stuff all over * tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc: (48 commits) dma-fence: Introduce drm_fence_set_error() helper dma-fence: Wrap querying the fence->status dma-fence: Clear fence->status during dma_fence_init() drm: fix compilations issues introduced by "drm: allow to use mmuless SoC" drm: Change the return type of the unload hook to void drm: add more document for drm_crtc_from_index() drm: remove useless parameters from drm_pick_cmdline_mode function drm: crc: Call wake_up_interruptible() each time there is a new CRC entry drm: allow to use mmuless SoC drm: compile drm_vm.c only when needed fbmem: add a default get_fb_unmapped_area function drm: crc: Wait for a frame before returning from open() drm: Move locking into drm_debugfs_crtc_crc_add drm/imx: imx-tve: Remove unused variable Revert "drm: nouveau: fix build when LEDS_CLASS=m" drm: Add kernel-doc for drm_crtc_commit_get/put drm/atomic: Fix outdated comment. drm: reference count event->completion gpu: drm: mgag200: mgag200_main:- Handle error from pci_iomap drm: Document deprecated load/unload hook ...
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git://anongit.freedesktop.org/git/drm-intelDave Airlie authored
More 4.11 stuff, holidays edition (i.e. not much): - docs and cleanups for shared dpll code (Ander) - some kerneldoc work (Chris) - fbc by default on gen9+ too, yeah! (Paulo) - fixes, polish and other small things all over gem code (Chris) - and a few small things on top Plus a backmerge, because Dave was enjoying time off too. * tag 'drm-intel-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-intel: (275 commits) drm/i915: Update DRIVER_DATE to 20170109 drm/i915: Drain freed objects for mmap space exhaustion drm/i915: Purge loose pages if we run out of DMA remap space drm/i915: Fix phys pwrite for struct_mutex-less operation drm/i915: Simplify testing for am-I-the-kernel-context? drm/i915: Use range_overflows() drm/i915: Use fixed-sized types for stolen drm/i915: Use phys_addr_t for the address of stolen memory drm/i915: Consolidate checks for memcpy-from-wc support drm/i915: Only skip requests once a context is banned drm/i915: Move a few more utility macros to i915_utils.h drm/i915: Clear ret before unbinding in i915_gem_evict_something() drm/i915/guc: Exclude the upper end of the Global GTT for the GuC drm/i915: Move a few utility macros into a separate header drm/i915/execlists: Reorder execlists register enabling drm/i915: Assert that we do create the deferred context drm/i915: Assert all timeline requests are gone before fini drm/i915: Revoke fenced GTT mmapings across GPU reset drm/i915: enable FBC on gen9+ too drm/i915: actually drive the BDW reserved IDs ...
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Chris Wilson authored
The dma_fence.error field (formerly known as dma_fence.status) is an optional field that may be set by drivers before calling dma_fence_signal(). The field can be used to indicate that the fence was completed in err rather than with success, and is visible to other consumers of the fence and to userspace via sync_file. This patch renames the field from status to error so that its meaning is hopefully more clear (and distinct from dma_fence_get_status() which is a composite between the error state and signal state) and adds a helper that validates the preconditions of when it is suitable to adjust the error field. Signed-off-by:
Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by:
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Matthew Auld authored
Now that it's obvious what the helpers do, we can simplify the code somewhat by using them when clearing the pdpe/pml4e with the relevant scratch entry. Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Matthew Auld <matthew.auld@intel.com> Reviewed-by:
Michał Winiarski <michal.winiarski@intel.com> Signed-off-by:
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Matthew Auld authored
The function name gen8_setup_page_directory_pointer is misleading, and only serves to confuse the reader, it's not setting up a pdp, but rather encoding a specific pml4e with a given pdp. Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Matthew Auld authored
The function name gen8_setup_page_directory is misleading, and only serves to confuse the reader, it's not setting up a pd, but rather encoding a specific pdpe with a given pd. Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Chris Wilson authored
The fence->status is an optional field that is only valid once the fence has been signaled. (Driver may fill the fence->status with an error code prior to calling dma_fence_signal().) Given the restriction upon its validity, wrap querying of the fence->status into a helper dma_fence_get_status(). Signed-off-by:
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Chris Wilson authored
As the fence->status is an optional field that may be set before dma_fence_signal() is called to convey that the fence completed with an error, we have to ensure that it is always set to zero on initialisation so that the typical use (i.e. unset) always flags a successful completion. Signed-off-by:
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Benjamin Gaignard authored
Removing MMU configuration flag from DRM make few automatic build failed when they answer yes to all flags. Add asm/vga.h file on Blackfin architecture to not broke compilation. Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Fixes: 62a0d98a ("drm: allow to use mmuless SoC") Signed-off-by:
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Gabriel Krisman Bertazi authored
The integer returned by the unload hook is ignored by the drm core, so let's make it void. This patch was created using the following Coccinelle semantic script (except for the declaration and comment in drm_drv.h): Compile-tested only. // <smpl> @ get_name @ struct drm_driver drv; identifier fn; @@ drv.unload = fn; @ replace_type @ identifier get_name.fn; @@ - int + void fn (...) { ... } @ remove_return_param @ identifier get_name.fn; @@ void fn (...) { <... if (...) return - ... ; ...> } @ drop_final_return @ identifier get_name.fn; @@ void fn (...) { ... - return 0; } // </smpl> Suggested-by:Gabriel Krisman Bertazi <krisman@collabora.co.uk> Acked-by: Christian König <christian.koenig@amd.com>. Signed-off-by:
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Shawn Guo authored
Add a bit more document for function drm_crtc_from_index() to cross link it with drm_crtc_from_index(), and explain that the function is useful in vblank code. While at it, add cross link comment for drm_plane_from_index() as well. Signed-off-by:
Shawn Guo <shawn.guo@linaro.org> Signed-off-by:
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Vincent Abriou authored
drm_pick_cmdline_mode width and height parameters are useless. Just remove them. Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by:
Vincent Abriou <vincent.abriou@st.com> Signed-off-by:
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Daniel Vetter authored
Signed-off-by:
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- 08 Jan, 2017 6 commits
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git://anongit.freedesktop.org/git/drm-miscDave Airlie authored
First -misc pull for 4.11: - drm_mm rework + lots of selftests (Chris Wilson) - new connector_list locking+iterators - plenty of kerneldoc updates - format handling rework from Ville - atomic helper changes from Maarten for better plane corner-case handling in drivers, plus the i915 legacy cursor patch that needs this - bridge cleanup from Laurent - plus plenty of small stuff all over - also contains a merge of the 4.10 docs tree so that we could apply the dma-buf kerneldoc patches It's a lot more than usual, but due to the merge window blackout it also covers about 4 weeks, so all in line again on a per-week basis. The more annoying part with no pull request for 4 weeks is managing cross-tree work. The -intel pull request I'll follow up with does conflict quite a bit with -misc here. Longer-term (if drm-misc keeps growing) a drm-next-queued to accept pull request for the next merge window during this time might be useful. I'd also like to backmerge -rc2+this into drm-intel next week, we have quite a pile of patches waiting for the stuff in here. * tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc: (126 commits) drm: Add kerneldoc markup for new @scan parameters in drm_mm drm/mm: Document locking rules drm: Use drm_mm_insert_node_in_range_generic() for everyone drm: Apply range restriction after color adjustment when allocation drm: Wrap drm_mm_node.hole_follows drm: Apply tight eviction scanning to color_adjust drm: Simplify drm_mm scan-list manipulation drm: Optimise power-of-two alignments in drm_mm_scan_add_block() drm: Compute tight evictions for drm_mm_scan drm: Fix application of color vs range restriction when scanning drm_mm drm: Unconditionally do the range check in drm_mm_scan_add_block() drm: Rename prev_node to hole in drm_mm_scan_add_block() drm: Fix O= out-of-tree builds for selftests drm: Extract struct drm_mm_scan from struct drm_mm drm: Add asserts to catch overflow in drm_mm_init() and drm_mm_init_scan() drm: Simplify drm_mm_clean() drm: Detect overflow in drm_mm_reserve_node() drm: Fix kerneldoc for drm_mm_scan_remove_block() drm: Promote drm_mm alignment to u64 drm: kselftest for drm_mm and restricted color eviction ...
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are a bunch of USB fixes for 4.10-rc3. Yeah, it's a lot, an artifact of the holiday break I think. Lots of gadget and the usual XHCI fixups for reported issues (one day that driver will calm down...) Also included are a bunch of usb-serial driver fixes, and for good measure, a number of much-reported MUSB driver issues have finally been resolved. All of these have been in linux-next with no reported issues" * tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (72 commits) USB: fix problems with duplicate endpoint addresses usb: ohci-at91: use descriptor-based gpio APIs correctly usb: storage: unusual_uas: Add JMicron JMS56x to unusual device usb: hub: Move hub_port_disable() to fix warning if PM is disabled usb: musb: blackfin: add bfin_fifo_offset in bfin_ops usb: musb: fix compilation warning on unused function usb: musb: Fix trying to free already-free IRQ 4 usb: musb: dsps: implement clear_ep_rxintr() callback usb: musb: core: add clear_ep_rxintr() to musb_platform_ops USB: serial: ti_usb_3410_5052: fix NULL-deref at open USB: serial: spcp8x5: fix NULL-deref at open USB: serial: quatech2: fix sleep-while-atomic in close USB: serial: pl2303: fix NULL-deref at open USB: serial: oti6858: fix NULL-deref at open USB: serial: omninet: fix NULL-derefs at open and disconnect USB: serial: mos7840: fix misleading interrupt-URB comment USB: serial: mos7840: remove unused write URB USB: serial: mos7840: fix NULL-deref at open USB: serial: mos7720: remove obsolete port initialisation USB: serial: mos7720: fix parallel probe ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc fixes from Greg KH: "Here are a few small char/misc driver fixes for 4.10-rc3. Two MEI driver fixes, and three NVMEM patches for reported issues, and a new Hyper-V driver MAINTAINER update. Nothing major at all, all have been in linux-next with no reported issues" * tag 'char-misc-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: hyper-v: Add myself as additional MAINTAINER nvmem: fix nvmem_cell_read() return type doc nvmem: imx-ocotp: Fix wrong register size nvmem: qfprom: Allow single byte accesses for read/write mei: move write cb to completion on credentials failures mei: bus: fix mei_cldev_enable KDoc
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging/IIO fixes from Greg KH: "Here are some staging and IIO driver fixes for 4.10-rc3. Most of these are minor IIO fixes of reported issues, along with one network driver fix to resolve an issue. And a MAINTAINERS update with a new mailing list. All of these, except the MAINTAINERS file update, have been in linux-next with no reported issues (the MAINTAINERS patch happened on Friday...)" * tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: MAINTAINERS: add greybus subsystem mailing list staging: octeon: Call SET_NETDEV_DEV() iio: accel: st_accel: fix LIS3LV02 reading and scaling iio: common: st_sensors: fix channel data parsing iio: max44000: correct value in illuminance_integration_time_available iio: adc: TI_AM335X_ADC should depend on HAS_DMA iio: bmi160: Fix time needed to sleep after command execution iio: 104-quad-8: Fix active level mismatch for the preset enable option iio: 104-quad-8: Fix off-by-one errors when addressing IOR iio: 104-quad-8: Fix index control configuration
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Johannes Weiner authored
Several people report seeing warnings about inconsistent radix tree nodes followed by crashes in the workingset code, which all looked like use-after-free access from the shadow node shrinker. Dave Jones managed to reproduce the issue with a debug patch applied, which confirmed that the radix tree shrinking indeed frees shadow nodes while they are still linked to the shadow LRU: WARNING: CPU: 2 PID: 53 at lib/radix-tree.c:643 delete_node+0x1e4/0x200 CPU: 2 PID: 53 Comm: kswapd0 Not tainted 4.10.0-rc2-think+ #3 Call Trace: delete_node+0x1e4/0x200 __radix_tree_delete_node+0xd/0x10 shadow_lru_isolate+0xe6/0x220 __list_lru_walk_one.isra.4+0x9b/0x190 list_lru_walk_one+0x23/0x30 scan_shadow_nodes+0x2e/0x40 shrink_slab.part.44+0x23d/0x5d0 shrink_node+0x22c/0x330 kswapd+0x392/0x8f0 This is the WARN_ON_ONCE(!list_empty(&node->private_list)) placed in the inlined radix_tree_shrink(). The problem is with 14b46879 ("mm: workingset: move shadow entry tracking to radix tree exceptional tracking"), which passes an update callback into the radix tree to link and unlink shadow leaf nodes when tree entries change, but forgot to pass the callback when reclaiming a shadow node. While the reclaimed shadow node itself is unlinked by the shrinker, its deletion from the tree can cause the left-most leaf node in the tree to be shrunk. If that happens to be a shadow node as well, we don't unlink it from the LRU as we should. Consider this tree, where the s are shadow entries: root->rnode | [0 n] | | [s ] [sssss] Now the shadow node shrinker reclaims the rightmost leaf node through the shadow node LRU: root->rnode | [0 ] | [s ] Because the parent of the deleted node is the first level below the root and has only one child in the left-most slot, the intermediate level is shrunk and the node containing the single shadow is put in its place: root->rnode | [s ] The shrinker again sees a single left-most slot in a first level node and thus decides to store the shadow in root->rnode directly and free the node - which is a leaf node on the shadow node LRU. root->rnode | s Without the update callback, the freed node remains on the shadow LRU, where it causes later shrinker runs to crash. Pass the node updater callback into __radix_tree_delete_node() in case the deletion causes the left-most branch in the tree to collapse too. Also add warnings when linked nodes are freed right away, rather than wait for the use-after-free when the list is scanned much later. Fixes: 14b46879 ("mm: workingset: move shadow entry tracking to radix tree exceptional tracking") Reported-by:Dave Chinner <david@fromorbit.com> Reported-by:
Hugh Dickins <hughd@google.com> Reported-by:
Andrea Arcangeli <aarcange@redhat.com> Reported-and-tested-by:
Dave Jones <davej@codemonkey.org.uk> Signed-off-by:
Johannes Weiner <hannes@cmpxchg.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Chris Leech <cleech@redhat.com> Cc: Lee Duncan <lduncan@suse.com> Cc: Jan Kara <jack@suse.cz> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Matthew Wilcox <mawilcox@linuxonhyperv.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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