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2021-07-21dmaengine: idxd: remove iax_bus_type prototypeDave Jiang1-1/+0
Remove unused iax_bus_type prototype declaration. Should have been removed when iax_bus_type was removed. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637462909.744545.7106049898386277608.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-21dmaengine: idxd: remove bus shutdownDave Jiang1-6/+0
Remove ->shutdown() function for the dsa bus as it does not do anything and is not necessary. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637462319.744545.10383189484257042066.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-21dmaengine: idxd: move wq_disable() to device.cDave Jiang3-37/+39
Move the wq_disable() function to device.c in preparation of setting up the idxd internal sub-driver framework. No logic changes. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637461775.744545.9644048686618957886.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-21dmaengine: idxd: move wq_enable() to device.cDave Jiang3-123/+126
Move the wq_enable() function to device.c in preparation of setting up the idxd internal sub-driver framework. No logic changes. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637461176.744545.3806109011554118998.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-21dmaengine: idxd: remove IDXD_DEV_CONF_READYDave Jiang4-19/+2
The IDXD_DEV_CONF_READY state flag is no longer needed. The current implementation uses this flag to stop the device from doing configuration until the pci driver probe has completed. With the driver architecture going towards multiple sub-driver attached to the dsa_bus, this is no longer feasible. The sub-drivers will be allowed to probe and return with failure when they are not ready to complete the probe rather than using a state flag to gate the probing. There is no expectation that the devices auto-attach to a driver. Userspace configuration is expected to setup the device before enabling. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637460633.744545.8902095097471365420.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-21dmaengine: idxd: add 'struct idxd_dev' as wrapper for conf_devDave Jiang6-185/+251
Add a 'struct idxd_dev' that wraps the 'struct device' for idxd conf_dev that registers with the dsa bus. This is introduced in order to deal with multiple different types of 'devices' that are registered on the dsa_bus when the compat driver needs to route them to the correct driver to attach. The bind() call now can determine the type of device and then do the appropriate driver matching. Reviewed-by Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637460065.744545.584492831446090984.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-21dmaengine: idxd: add driver nameDave Jiang3-3/+3
Add name field in idxd_device_driver so we don't have to touch the 'struct device_driver' during declaration. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637459517.744545.7572915135318813722.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-21dmaengine: idxd: add driver register helperDave Jiang3-5/+26
Add helper functions for dsa-driver registration similar to other bus-types. In particular, do not require dsa-drivers to open-code the bus, owner, and mod_name fields. Let registration and unregistration operate on the 'struct idxd_device_driver' instead of the raw / embedded 'struct device_driver'. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162637458949.744545.14996726325385482050.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-21Merge branch 'fixes' into nextVinod Koul3-17/+99
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-20dmaengine: idxd: fix sequence for pci driver remove() and shutdown()Dave Jiang2-11/+17
->shutdown() call should only be responsible for quiescing the device. Currently it is doing PCI device tear down. This causes issue when things like MMIO mapping is removed while idxd_unregister_devices() will trigger removal of idxd device sub-driver and still initiates MMIO writes to the device. Another issue is with the unregistering of idxd 'struct device', the memory context gets freed. So the teardown calls are accessing freed memory and can cause kernel oops. Move all the teardown bits that doesn't belong in shutdown to ->remove() call. Move unregistering of the idxd conf_dev 'struct device' to after doing all the teardown to free all the memory that's no longer needed. Fixes: 47c16ac27d4c ("dmaengine: idxd: fix idxd conf_dev 'struct device' lifetime") Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162629983901.395844.17964803190905549615.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-20dmaengine: idxd: fix submission race windowDave Jiang3-18/+101
Konstantin observed that when descriptors are submitted, the descriptor is added to the pending list after the submission. This creates a race window with the slight possibility that the descriptor can complete before it gets added to the pending list and this window would cause the completion handler to miss processing the descriptor. To address the issue, the addition of the descriptor to the pending list must be done before it gets submitted to the hardware. However, submitting to swq with ENQCMDS instruction can cause a failure with the condition of either wq is full or wq is not "active". With the descriptor allocation being the gate to the wq capacity, it is not possible to hit a retry with ENQCMDS submission to the swq. The only possible failure can happen is when wq is no longer "active" due to hw error and therefore we are moving towards taking down the portal. Given this is a rare condition and there's no longer concern over I/O performance, the driver can walk the completion lists in order to retrieve and abort the descriptor. The error path will set the descriptor to aborted status. It will take the work list lock to prevent further processing of worklist. It will do a delete_all on the pending llist to retrieve all descriptors on the pending llist. The delete_all action does not require a lock. It will walk through the acquired llist to find the aborted descriptor while add all remaining descriptors to the work list since it holds the lock. If it does not find the aborted descriptor on the llist, it will walk through the work list. And if it still does not find the descriptor, then it means the interrupt handler has removed the desc from the llist but is pending on the work list lock and will process it once the error path releases the lock. Fixes: eb15e7154fbf ("dmaengine: idxd: add interrupt handle request and release support") Reported-by: Konstantin Ananyev <konstantin.ananyev@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162628855747.360485.10101925573082466530.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-20dmaengine: idxd: fix sequence for pci driver remove() and shutdown()Dave Jiang2-11/+17
->shutdown() call should only be responsible for quiescing the device. Currently it is doing PCI device tear down. This causes issue when things like MMIO mapping is removed while idxd_unregister_devices() will trigger removal of idxd device sub-driver and still initiates MMIO writes to the device. Another issue is with the unregistering of idxd 'struct device', the memory context gets freed. So the teardown calls are accessing freed memory and can cause kernel oops. Move all the teardown bits that doesn't belong in shutdown to ->remove() call. Move unregistering of the idxd conf_dev 'struct device' to after doing all the teardown to free all the memory that's no longer needed. Fixes: 47c16ac27d4c ("dmaengine: idxd: fix idxd conf_dev 'struct device' lifetime") Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162629983901.395844.17964803190905549615.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-20dmaengine: idxd: fix desc->vector that isn't being updatedDave Jiang1-2/+1
Missing update for desc->vector when the wq vector gets updated. This causes the desc->vector to always be at 0. Fixes: da435aedb00a ("dmaengine: idxd: fix array index when int_handles are being used") Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162628784374.353761.4736602409627820431.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-15Merge branch 'fixes' into nextVinod Koul3-2/+16
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-15dmaengine: sprd: Add missing MODULE_DEVICE_TABLEZou Wei1-0/+1
This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this driver when it is built as an external module. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zou Wei <zou_wei@huawei.com> Reviewed-by: Baolin Wang <baolin.wang7@gmail.com> Link: https://lore.kernel.org/r/1620094977-70146-1-git-send-email-zou_wei@huawei.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: idxd: depends on !UMLJohannes Berg1-1/+1
Now that UML has PCI support, this driver must depend also on !UML since it pokes at X86_64 architecture internals that don't exist on ARCH=um. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com> Link: https://lore.kernel.org/r/20210625103810.fe877ae0aef4.If240438e3f50ae226f3f755fc46ea498c6858393@changeid Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: idxd: assign MSIX vectors to each WQ rather than roundrobinDave Jiang2-30/+8
IOPS increased when changing MSIX vector to per WQ from roundrobin. Allows descriptor to be completed by the submitter improves caching locality. Suggested-by: Konstantin Ananyev <konstantin.ananyev@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com> Link: https://lore.kernel.org/r/162456717326.1130457.15258077196523268356.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: idxd: add missing percpu ref put on failureDave Jiang1-1/+3
When enqcmds() fails, exit path is missing a percpu_ref_put(). This can cause failure on shutdown path when the driver is attempting to quiesce the wq. Add missing percpu_ref_put() call on the error exit path. Fixes: 93a40a6d7428 ("dmaengine: idxd: add percpu_ref to descriptor submission path") Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162456170168.1121236.7240941044089212312.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: idxd: fix setup sequence for MSIXPERM tableDave Jiang1-1/+3
The MSIX permission table should be programmed BEFORE request_irq() happens. This prevents any possibility of an interrupt happening before the MSIX perm table is setup, however slight. Fixes: 6df0e6c57dfc ("dmaengine: idxd: clear MSIX permission entry on shutdown") Sign-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162456741222.1138073.1298447364671237896.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: idxd: fix array index when int_handles are being usedDave Jiang1-13/+2
The index to the irq vector should be local and has no relation to the assigned interrupt handle. Assign the MSIX interrupt index that is programmed for the descriptor. The interrupt handle only matters when it comes to hardware descriptor programming. Fixes: eb15e7154fbf ("dmaengine: idxd: add interrupt handle request and release support") Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162456176939.1121476.3366256009925001897.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: idxd: have command status always setDave Jiang1-4/+5
The cached command status is only set when the write back status is is passed in. Move the variable set outside of the check so it is always set. Fixes: 0d5c10b4c84d ("dmaengine: idxd: add work queue drain support") Reported-by: Ramesh Thomas <ramesh.thomas@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162274329740.1822314.3443875665504707588.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: idxd: Add wq occupancy information to sysfs attributeDave Jiang3-0/+29
Add occupancy information to wq sysfs attribute. Attribute will show wq occupancy data if "WQ Occupancy Support" field in WQCAP is 1. It displays the number of entries currently in this WQ. This is provided as an estimate and should not be relied on to determine whether there is space in the WQ. The data is to provide information to user apps for flow control. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162275745546.1857062.8765615879420582018.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmanegine: idxd: cleanup all device related bits after disabling deviceDave Jiang4-46/+74
The previous state cleanup patch only performed wq state cleanups. This does not go far enough as when device is disabled or reset, the state for groups and engines must also be cleaned up. Add additional state cleanup beyond wq cleanup. Tie those cleanups directly to device disable and reset, and wq disable and reset. Fixes: da32b28c95a7 ("dmaengine: idxd: cleanup workqueue config after disabling") Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/162285154108.2096632.5572805472362321307.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: usb-dmac: Fix PM reference leak in usb_dmac_probe()Yu Kuai1-1/+1
pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by moving the error_pm label above the pm_runtime_put() in the error path. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yu Kuai <yukuai3@huawei.com> Link: https://lore.kernel.org/r/20210706124521.1371901-1-yukuai3@huawei.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: xilinx_dma: Fix read-after-free bug when terminating transfersAdrian Larumbe1-0/+12
When user calls dmaengine_terminate_sync, the driver will clean up any remaining descriptors for all the pending or active transfers that had previously been submitted. However, this might happen whilst the tasklet is invoking the DMA callback for the last finished transfer, so by the time it returns and takes over the channel's spinlock, the list of completed descriptors it was traversing is no longer valid. This leads to a read-after-free situation. Fix it by signalling whether a user-triggered termination has happened by means of a boolean variable. Signed-off-by: Adrian Larumbe <adrian.martinezlarumbe@imgtec.com> Link: https://lore.kernel.org/r/20210706234338.7696-3-adrian.martinezlarumbe@imgtec.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: idxd: Simplify code and axe the use of a deprecated APIChristophe JAILLET1-8/+2
The wrappers in include/linux/pci-dma-compat.h should go away. Replace 'pci_set_dma_mask/pci_set_consistent_dma_mask' by an equivalent and less verbose 'dma_set_mask_and_coherent()' call. Even if the code may look different, it should have exactly the same run-time behavior. If pci_set_dma_mask(64) fails and pci_set_dma_mask(32) succeeds, then pci_set_consistent_dma_mask(64) will also fail. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/70c8a3bc67e41c5fefb526ecd64c5174c1e2dc76.1625720835.git.christophe.jaillet@wanadoo.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-14dmaengine: dw: Program xBAR hardware for Elkhart LakeAndy Shevchenko5-9/+160
Intel Elkhart Lake PSE DMA implementation is integrated with crossbar IP in order to serve more hardware than there are DMA request lines available. Due to this, program xBAR hardware to make flexible support of PSE peripheral. The Device-to-Device has not been tested and it's not supported by DMA Engine, but it's left in the code for the sake of documenting hardware features. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210712113940.42753-1-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-12Linux 5.14-rc1v5.14-rc1Linus Torvalds1-2/+2
2021-07-12mm/rmap: try_to_migrate() skip zone_device !device_privateHugh Dickins1-3/+3
I know nothing about zone_device pages and !device_private pages; but if try_to_migrate_one() will do nothing for them, then it's better that try_to_migrate() filter them first, than trawl through all their vmas. Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Reviewed-by: Alistair Popple <apopple@nvidia.com> Link: https://lore.kernel.org/lkml/1241d356-8ec9-f47b-a5ec-9b2bf66d242@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-12mm/rmap: fix new bug: premature return from page_mlock_one()Hugh Dickins1-6/+5
In the unlikely race case that page_mlock_one() finds VM_LOCKED has been cleared by the time it got page table lock, page_vma_mapped_walk_done() must be called before returning, either explicitly, or by a final call to page_vma_mapped_walk() - otherwise the page table remains locked. Fixes: cd62734ca60d ("mm/rmap: split try_to_munlock from try_to_unmap") Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Alistair Popple <apopple@nvidia.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Reported-by: kernel test robot <oliver.sang@intel.com> Link: https://lore.kernel.org/lkml/20210711151446.GB4070@xsang-OptiPlex-9020/ Link: https://lore.kernel.org/lkml/f71f8523-cba7-3342-40a7-114abc5d1f51@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-12mm/rmap: fix old bug: munlocking THP missed other mlocksHugh Dickins1-5/+8
The kernel recovers in due course from missing Mlocked pages: but there was no point in calling page_mlock() (formerly known as try_to_munlock()) on a THP, because nothing got done even when it was found to be mapped in another VM_LOCKED vma. It's true that we need to be careful: Mlocked accounting of pte-mapped THPs is too difficult (so consistently avoided); but Mlocked accounting of only-pmd-mapped THPs is supposed to work, even when multiple mappings are mlocked and munlocked or munmapped. Refine the tests. There is already a VM_BUG_ON_PAGE(PageDoubleMap) in page_mlock(), so page_mlock_one() does not even have to worry about that complication. (I said the kernel recovers: but would page reclaim be likely to split THP before rediscovering that it's VM_LOCKED? I've not followed that up) Fixes: 9a73f61bdb8a ("thp, mlock: do not mlock PTE-mapped file huge pages") Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Link: https://lore.kernel.org/lkml/cfa154c-d595-406-eb7d-eb9df730f944@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alistair Popple <apopple@nvidia.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-12mm/rmap: fix comments left over from recent changesHugh Dickins2-7/+2
Parallel developments in mm/rmap.c have left behind some out-of-date comments: try_to_migrate_one() also accepts TTU_SYNC (already commented in try_to_migrate() itself), and try_to_migrate() returns nothing at all. TTU_SPLIT_FREEZE has just been deleted, so reword the comment about it in mm/huge_memory.c; and TTU_IGNORE_ACCESS was removed in 5.11, so delete the "recently referenced" comment from try_to_unmap_one() (once upon a time the comment was near the removed codeblock, but they drifted apart). Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Reviewed-by: Alistair Popple <apopple@nvidia.com> Link: https://lore.kernel.org/lkml/563ce5b2-7a44-5b4d-1dfd-59a0e65932a9@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-11Merge tag 'irq-urgent-2021-07-11' of ↵Linus Torvalds6-12/+31
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Ingo Molnar: "Two fixes: - Fix a MIPS IRQ handling RCU bug - Remove a DocBook annotation for a parameter that doesn't exist anymore" * tag 'irq-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mips: Fix RCU violation when using irqdomain lookup on interrupt entry genirq/irqdesc: Drop excess kernel-doc entry @lookup
2021-07-11Merge tag 'sched-urgent-2021-07-11' of ↵Linus Torvalds2-10/+18
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Three fixes: - Fix load tracking bug/inconsistency - Fix a sporadic CFS bandwidth constraints enforcement bug - Fix a uclamp utilization tracking bug for newly woken tasks" * tag 'sched-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/uclamp: Ignore max aggregation if rq is idle sched/fair: Fix CFS bandwidth hrtimer expiry type sched/fair: Sync load_sum with load_avg after dequeue
2021-07-11Merge tag 'perf-urgent-2021-07-11' of ↵Linus Torvalds2-8/+21
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "A fix and a hardware-enablement addition: - Robustify uncore_snbep's skx_iio_set_mapping()'s error cleanup - Add cstate event support for Intel ICELAKE_X and ICELAKE_D" * tag 'perf-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Clean up error handling path of iio mapping perf/x86/cstate: Add ICELAKE_X and ICELAKE_D support
2021-07-11Merge tag 'locking-urgent-2021-07-11' of ↵Linus Torvalds5-23/+33
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Ingo Molnar: - Fix a Sparc crash - Fix a number of objtool warnings - Fix /proc/lockdep output on certain configs - Restore a kprobes fail-safe * tag 'locking-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/atomic: sparc: Fix arch_cmpxchg64_local() kprobe/static_call: Restore missing static_call_text_reserved() static_call: Fix static_call_text_reserved() vs __init jump_label: Fix jump_label_text_reserved() vs __init locking/lockdep: Fix meaningless /proc/lockdep output of lock classes on !CONFIG_PROVE_LOCKING
2021-07-11Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds36-162/+287
Pull more SCSI updates from James Bottomley: "This is a set of minor fixes and clean ups in the core and various drivers. The only core change in behaviour is the I/O retry for spinup notify, but that shouldn't impact anything other than the failing case" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (23 commits) scsi: virtio_scsi: Add validation for residual bytes from response scsi: ipr: System crashes when seeing type 20 error scsi: core: Retry I/O for Notify (Enable Spinup) Required error scsi: mpi3mr: Fix warnings reported by smatch scsi: qedf: Add check to synchronize abort and flush scsi: MAINTAINERS: Add mpi3mr driver maintainers scsi: libfc: Fix array index out of bound exception scsi: mvsas: Use DEVICE_ATTR_RO()/RW() macro scsi: megaraid_mbox: Use DEVICE_ATTR_ADMIN_RO() macro scsi: qedf: Use DEVICE_ATTR_RO() macro scsi: qedi: Use DEVICE_ATTR_RO() macro scsi: message: mptfc: Switch from pci_ to dma_ API scsi: be2iscsi: Fix some missing space in some messages scsi: be2iscsi: Fix an error handling path in beiscsi_dev_probe() scsi: ufs: Fix build warning without CONFIG_PM scsi: bnx2fc: Remove meaningless bnx2fc_abts_cleanup() return value assignment scsi: qla2xxx: Add heartbeat check scsi: virtio_scsi: Do not overwrite SCSI status scsi: libsas: Add LUN number check in .slave_alloc callback scsi: core: Inline scsi_mq_alloc_queue() ...
2021-07-11Merge tag 'perf-tools-for-v5.14-2021-07-10' of ↵Linus Torvalds77-331/+1872
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull more perf tool updates from Arnaldo Carvalho de Melo: "New features: - Enable use of BPF counters with 'perf stat --for-each-cgroup', using per-CPU 'cgroup-switch' events with an attached BPF program that does aggregation per-cgroup in the kernel instead of using per-cgroup perf events. - Add Topdown metrics L2 events as default events in 'perf stat' for systems having those events. Hardware tracing: - Add a config for max loops without consuming a packet in the Intel PT packet decoder, set via 'perf config intel-pt.max-loops=N' Hardware enablement: - Disable misleading NMI watchdog message in 'perf stat' on hybrid systems such as Intel Alder Lake. - Add a dummy event on hybrid systems to collect metadata records. - Add 24x7 nest metric events for the Power10 platform. Fixes: - Fix event parsing for PMUs starting with the same prefix. - Fix the 'perf trace' 'trace' alias installation dir. - Fix buffer size to report iregs in perf script python scripts, supporting the extended registers in PowerPC. - Fix overflow in elf_sec__is_text(). - Fix 's' on source line when disasm is empty in the annotation TUI, accessible via 'perf annotate', 'perf report' and 'perf top'. - Plug leaks in scandir() returned dirent entries in 'perf test' when sorting the shell tests. - Fix --task and --stat with pipe input in 'perf report'. - Fix 'perf probe' use of debuginfo files by build id. - If a DSO has both dynsym and symtab ELF sections, read from both when loading the symbol table, fixing a problem processing Fedora 32 glibc DSOs. Libraries: - Add grouping of events to libperf, from code in tools/perf, allowing libperf users to use that mode. Misc: - Filter plt stubs from the 'perf probe --functions' output. - Update UAPI header copies for asound, DRM, mman-common.h and the ones affected by the quotactl_fd syscall" * tag 'perf-tools-for-v5.14-2021-07-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (29 commits) perf test: Add free() calls for scandir() returned dirent entries libperf: Add tests for perf_evlist__set_leader() libperf: Remove BUG_ON() from library code in get_group_fd() libperf: Add group support to perf_evsel__open() perf tools: Fix pattern matching for same substring in different PMU type perf record: Add a dummy event on hybrid systems to collect metadata records perf stat: Add Topdown metrics L2 events as default events libperf: Adopt evlist__set_leader() from tools/perf as perf_evlist__set_leader() libperf: Move 'nr_groups' from tools/perf to evlist::nr_groups libperf: Move 'leader' from tools/perf to perf_evsel::leader libperf: Move 'idx' from tools/perf to perf_evsel::idx libperf: Change tests to single static and shared binaries perf intel-pt: Add a config for max loops without consuming a packet perf stat: Disable the NMI watchdog message on hybrid perf vendor events power10: Adds 24x7 nest metric events for power10 platform perf script python: Fix buffer size to report iregs in perf script perf trace: Fix the perf trace link location perf top: Fix overflow in elf_sec__is_text() perf annotate: Fix 's' on source line when disasm is empty perf probe: Do not show @plt function by default ...
2021-07-11Merge tag 'rtc-5.14' of ↵Linus Torvalds33-601/+440
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Mostly documentation/comment changes and non urgent fixes. - add or fix SPDX identifiers - NXP pcf*: fix datasheet URLs - imxdi: add wakeup support - pcf2127: handle timestamp interrupts, this fixes a possible interrupt storm - bd70528: Drop BD70528 support" * tag 'rtc-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (33 commits) rtc: pcf8523: rename register and bit defines rtc: pcf2127: handle timestamp interrupts rtc: at91sam9: Remove unnecessary offset variable checks rtc: s5m: Check return value of s5m_check_peding_alarm_interrupt() rtc: spear: convert to SPDX identifier rtc: tps6586x: convert to SPDX identifier rtc: tps80031: convert to SPDX identifier rtc: rtd119x: Fix format of SPDX identifier rtc: sc27xx: Fix format of SPDX identifier rtc: palmas: convert to SPDX identifier rtc: max6900: convert to SPDX identifier rtc: ds1374: convert to SPDX identifier rtc: au1xxx: convert to SPDX identifier rtc: pcf85063: Update the PCF85063A datasheet revision dt-bindings: rtc: ti,bq32k: take maintainership rtc: pcf8563: Fix the datasheet URL rtc: pcf85063: Fix the datasheet URL rtc: pcf2127: Fix the datasheet URL dt-bindings: rtc: ti,bq32k: Convert to json-schema dt-bindings: rtc: rx8900: Convert to YAML schema ...
2021-07-11mm/page_alloc: Revert pahole zero-sized workaroundMel Gorman2-14/+0
Commit dbbee9d5cd83 ("mm/page_alloc: convert per-cpu list protection to local_lock") folded in a workaround patch for pahole that was unable to deal with zero-sized percpu structures. A superior workaround is achieved with commit a0b8200d06ad ("kbuild: skip per-CPU BTF generation for pahole v1.18-v1.21"). This patch reverts the dummy field and the pahole version check. Fixes: dbbee9d5cd83 ("mm/page_alloc: convert per-cpu list protection to local_lock") Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-11rtc: pcf8523: rename register and bit definesAlexandre Belloni1-73/+73
arch/arm/mach-ixp4xx/include/mach/platform.h now gets included indirectly and defines REG_OFFSET. Rename the register and bit definition to something specific to the driver. Fixes: 7fd70c65faac ("ARM: irqstat: Get rid of duplicated declaration") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210710211431.1393589-1-alexandre.belloni@bootlin.com
2021-07-10Merge tag '5.14-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds12-29/+135
Pull cifs fixes from Steve French: "13 cifs/smb3 fixes. Most are to address minor issues pointed out by Coverity. Also includes a packet signing enhancement and mount improvement" * tag '5.14-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6: cifs: update internal version number cifs: prevent NULL deref in cifs_compose_mount_options() SMB3.1.1: Add support for negotiating signing algorithm cifs: use helpers when parsing uid/gid mount options and validate them CIFS: Clarify SMB1 code for POSIX Lock CIFS: Clarify SMB1 code for rename open file CIFS: Clarify SMB1 code for delete CIFS: Clarify SMB1 code for SetFileSize smb3: fix typo in header file CIFS: Clarify SMB1 code for UnixSetPathInfo CIFS: Clarify SMB1 code for UnixCreateSymLink cifs: clarify SMB1 code for UnixCreateHardLink cifs: make locking consistent around the server session status
2021-07-10Merge tag 'pci-v5.14-fixes-1' of ↵Linus Torvalds1-46/+4
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci fix from Bjorn Helgaas: "Revert host bridge window patch that fixed HP EliteDesk 805 G6, but broke ppc:sam460ex (Bjorn Helgaas)" * tag 'pci-v5.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: Revert "PCI: Coalesce host bridge contiguous apertures"
2021-07-10Merge tag 'i3c/for-5.14' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull i3c updates from Alexandre Belloni: - two small fixes to the svc driver * tag 'i3c/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: master: svc: fix doc warning in svc-i3c-master.c i3c: master: svc: drop free_irq of devm_request_irq allocated irq
2021-07-10Merge tag 'thermal-v5.14-rc1' of ↵Linus Torvalds22-384/+1066
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal updates from Daniel Lezcano: - Add rk3568 sensor support (Finley Xiao) - Add missing MODULE_DEVICE_TABLE for the Spreadtrum sensor (Chunyan Zhang) - Export additionnal attributes for the int340x thermal processor (Srinivas Pandruvada) - Add SC7280 compatible for the tsens driver (Rajeshwari Ravindra Kamble) - Fix kernel documentation for thermal_zone_device_unregister() and use devm_platform_get_and_ioremap_resource() (Yang Yingliang) - Fix coefficient calculations for the rcar_gen3 sensor driver (Niklas Söderlund) - Fix shadowing variable rcar_gen3_ths_tj_1 (Geert Uytterhoeven) - Add missing of_node_put() for the iMX and Spreadtrum sensors (Krzysztof Kozlowski) - Add tegra3 thermal sensor DT bindings (Dmitry Osipenko) - Stop the thermal zone monitoring when unregistering it to prevent a temperature update without the 'get_temp' callback (Dmitry Osipenko) - Add rk3568 DT bindings, convert bindings to yaml schemas and add the corresponding compatible in the Rockchip sensor (Ezequiel Garcia) - Add the sc8180x compatible for the Qualcomm tsensor (Bjorn Andersson) - Use the find_first_zero_bit() function instead of custom code (Andy Shevchenko) - Fix the kernel doc for the device cooling device (Yang Li) - Reorg the processor thermal int340x to set the scene for the PCI mmio driver (Srinivas Pandruvada) - Add PCI MMIO driver for the int340x processor thermal driver (Srinivas Pandruvada) - Add hwmon sensors for the mediatek sensor (Frank Wunderlich) - Fix warning for return value reported by Smatch for the int340x thermal processor (Srinivas Pandruvada) - Fix wrong register access and decoding for the int340x thermal processor (Srinivas Pandruvada) * tag 'thermal-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (23 commits) thermal/drivers/int340x/processor_thermal: Fix tcc setting thermal/drivers/int340x/processor_thermal: Fix warning for return value thermal/drivers/mediatek: Add sensors-support thermal/drivers/int340x/processor_thermal: Add PCI MMIO based thermal driver thermal/drivers/int340x/processor_thermal: Split enumeration and processing part thermal: devfreq_cooling: Fix kernel-doc thermal/drivers/intel/intel_soc_dts_iosf: Switch to use find_first_zero_bit() dt-bindings: thermal: tsens: Add sc8180x compatible dt-bindings: rockchip-thermal: Support the RK3568 SoC compatible dt-bindings: thermal: convert rockchip-thermal to json-schema thermal/core/thermal_of: Stop zone device before unregistering it dt-bindings: thermal: Add binding for Tegra30 thermal sensor thermal/drivers/sprd: Add missing of_node_put for loop iteration thermal/drivers/imx_sc: Add missing of_node_put for loop iteration thermal/drivers/rcar_gen3_thermal: Do not shadow rcar_gen3_ths_tj_1 thermal/drivers/rcar_gen3_thermal: Fix coefficient calculations thermal/drivers/st: Use devm_platform_get_and_ioremap_resource() thermal/core: Correct function name thermal_zone_device_unregister() dt-bindings: thermal: tsens: Add compatible string to TSENS binding for SC7280 thermal/drivers/int340x: processor_thermal: Export additional attributes ...
2021-07-10Merge tag 'kbuild-v5.14' of ↵Linus Torvalds47-252/+215
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Increase the -falign-functions alignment for the debug option. - Remove ugly libelf checks from the top Makefile. - Make the silent build (-s) more silent. - Re-compile the kernel if KBUILD_BUILD_TIMESTAMP is specified. - Various script cleanups * tag 'kbuild-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (27 commits) scripts: add generic syscallnr.sh scripts: check duplicated syscall number in syscall table sparc: syscalls: use pattern rules to generate syscall headers parisc: syscalls: use pattern rules to generate syscall headers nds32: add arch/nds32/boot/.gitignore kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set kbuild: modpost: Explicitly warn about unprototyped symbols kbuild: remove trailing slashes from $(KBUILD_EXTMOD) kconfig.h: explain IS_MODULE(), IS_ENABLED() kconfig: constify long_opts scripts/setlocalversion: simplify the short version part scripts/setlocalversion: factor out 12-chars hash construction scripts/setlocalversion: add more comments to -dirty flag detection scripts/setlocalversion: remove workaround for old make-kpkg scripts/setlocalversion: remove mercurial, svn and git-svn supports kbuild: clean up ${quiet} checks in shell scripts kbuild: sink stdout from cmd for silent build init: use $(call cmd,) for generating include/generated/compile.h kbuild: merge scripts/mkmakefile to top Makefile sh: move core-y in arch/sh/Makefile to arch/sh/Kbuild ...
2021-07-10Merge tag 's390-5.14-2' of ↵Linus Torvalds66-1721/+2110
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull more s390 updates from Vasily Gorbik: - Fix preempt_count initialization. - Rework call_on_stack() macro to add proper type handling and avoid possible register corruption. - More error prone "register asm" removal and fixes. - Fix syscall restarting when multiple signals are coming in. This adds minimalistic trampolines to vdso so we can return from signal without using the stack which requires pgm check handler hacks when NX is enabled. - Remove HAVE_IRQ_EXIT_ON_IRQ_STACK since this is no longer true after switch to generic entry. - Fix protected virtualization secure storage access exception handling. - Make machine check C handler always enter with DAT enabled and move register validation to C code. - Fix tinyconfig boot problem by avoiding MONITOR CALL without CONFIG_BUG. - Increase asm symbols alignment to 16 to make it consistent with compilers. - Enable concurrent access to the CPU Measurement Counter Facility. - Add support for dynamic AP bus size limit and rework ap_dqap to deal with messages greater than recv buffer. * tag 's390-5.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (41 commits) s390: preempt: Fix preempt_count initialization s390/linkage: increase asm symbols alignment to 16 s390: rename CALL_ON_STACK_NORETURN() to call_on_stack_noreturn() s390: add type checking to CALL_ON_STACK_NORETURN() macro s390: remove old CALL_ON_STACK() macro s390/softirq: use call_on_stack() macro s390/lib: use call_on_stack() macro s390/smp: use call_on_stack() macro s390/kexec: use call_on_stack() macro s390/irq: use call_on_stack() macro s390/mm: use call_on_stack() macro s390: introduce proper type handling call_on_stack() macro s390/irq: simplify on_async_stack() s390/irq: inline do_softirq_own_stack() s390/irq: simplify do_softirq_own_stack() s390/ap: get rid of register asm in ap_dqap() s390: rename PIF_SYSCALL_RESTART to PIF_EXECVE_PGSTE_RESTART s390: move restart of execve() syscall s390/signal: remove sigreturn on stack s390/signal: switch to using vdso for sigreturn and syscall restart ...
2021-07-10Merge tag 'mips_5.14_1' of ↵Linus Torvalds3-3/+5
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Thomas Bogendoerfer: - fix for accesing gic via vdso - two build fixes * tag 'mips_5.14_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: vdso: Invalid GIC access through VDSO mips: disable branch profiling in boot/decompress.o mips: always link byteswap helpers into decompressor
2021-07-10Merge tag 'arm-defconfig-5.14' of ↵Linus Torvalds10-2/+33
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM defconfig updates from "Olof Johansson "A set of defconfig changes, we keep them in a separate branch to avoid conflicts between topics by separating them out. These changes are almost exclusively turning on new drivers for various platforms, or turning on modules for new drivers for the shared generic configs" * tag 'arm-defconfig-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (22 commits) arm64: defconfig: Enable renesas usb xhci pci host controller arm64: defconfig: Visconti: Enable GPIO arm64: defconfig: Visconti: Enable PWM arm64: defconfig: add drivers needed for DragonBoard410c ARM: config: aspeed: Add DEBUG_FS and EXT4 ARM: ixp4xx_defconfig: add MTD_PHYSMAP ARM: ixp4xx_defconfig: add CONFIG_SERIAL_OF_PLATFORM ARM: imx_v6_v7_defconfig: Select the Wifi ath10k sdio driver ARM: exynos_defconfig: restore framebuffer support arm64: defconfig: Enable ARCH_R9A07G044 ARM: configs: at91_dt_defconfig: configs for sam9x60 arm64: defconfig: Enable Exynos UFS driver arm64: defconfig: qcom: enable interconnect for SM8350 ARM: tegra_defconfig: Enable CONFIG_DEVFREQ_THERMAL arm64: defconfig: Enable usb2_clksel for R-Car Gen3 and RZ/G2 arm64: defconfig: enable Layerscape EDAC driver ARM: omap2plus_defconfig: Add LP5523 LED driver ARM: omap2plus_defconfig: Add WL1251 and WEXT modules ARM: shmobile: defconfig: Refresh for v5.13-rc1 arm64: defconfig: Allow Mediatek boards to boot from the mmc ...
2021-07-10Merge tag 'arm-drivers-5.14' of ↵Linus Torvalds97-5174/+8428
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM driver updates from Olof Johansson: - Reset controllers: Adding support for Microchip Sparx5 Switch. - Memory controllers: ARM Primecell PL35x SMC memory controller driver cleanups and improvements. - i.MX SoC drivers: Power domain support for i.MX8MM and i.MX8MN. - Rockchip: RK3568 power domains support + DT binding updates, cleanups. - Qualcomm SoC drivers: Amend socinfo with more SoC/PMIC details, including support for MSM8226, MDM9607, SM6125 and SC8180X. - ARM FFA driver: "Firmware Framework for ARMv8-A", defining management interfaces and communication (including bus model) between partitions both in Normal and Secure Worlds. - Tegra Memory controller changes, including major rework to deal with identity mappings at boot and integration with ARM SMMU pieces. * tag 'arm-drivers-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (120 commits) firmware: turris-mox-rwtm: add marvell,armada-3700-rwtm-firmware compatible string firmware: turris-mox-rwtm: show message about HWRNG registration firmware: turris-mox-rwtm: fail probing when firmware does not support hwrng firmware: turris-mox-rwtm: report failures better firmware: turris-mox-rwtm: fix reply status decoding function soc: imx: gpcv2: add support for i.MX8MN power domains dt-bindings: add defines for i.MX8MN power domains firmware: tegra: bpmp: Fix Tegra234-only builds iommu/arm-smmu: Use Tegra implementation on Tegra186 iommu/arm-smmu: tegra: Implement SID override programming iommu/arm-smmu: tegra: Detect number of instances at runtime dt-bindings: arm-smmu: Add Tegra186 compatible string firmware: qcom_scm: Add MDM9607 compatible soc: qcom: rpmpd: Add MDM9607 RPM Power Domains soc: renesas: Add support to read LSI DEVID register of RZ/G2{L,LC} SoC's soc: renesas: Add ARCH_R9A07G044 for the new RZ/G2L SoC's dt-bindings: soc: rockchip: drop unnecessary #phy-cells from grf.yaml memory: emif: remove unused frequency and voltage notifiers memory: fsl_ifc: fix leak of private memory on probe failure memory: fsl_ifc: fix leak of IO mapping on probe failure ...
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