- Aug 23, 2021
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Will Deacon authored
If CONFIG_DMA_RESTRICTED_POOL=n then probing a device with a reference to a "restricted-dma-pool" will fail with a reasonably cryptic error: | pci-host-generic: probe of 10000.pci failed with error -22 Rework of_dma_set_restricted_buffer() so that it does not cause probing failure and instead either returns early if CONFIG_DMA_RESTRICTED_POOL=n or emits a diagnostic if the reserved DMA pool fails to initialise. Cc: Claire Chang <tientzu@chromium.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Robin Murphy <robin.murphy@arm.com> Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Will Deacon authored
Rob observes that: | of_dma_set_restricted_buffer() [...] should also be moved to | of/device.c. There's no reason for it to be in of/address.c. It has | nothing to do with address parsing. Move it to of/device.c, as he suggests. Cc: Claire Chang <tientzu@chromium.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Robin Murphy <robin.murphy@arm.com> Suggested-by:
Rob Herring <robh+dt@kernel.org> Link: https://lore.kernel.org/r/CAL_JsqJ7ROWWJX84x2kEex9NQ8G+2=ybRuNOobX+j8bjZzSemQ@mail.gmail.com Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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- Aug 01, 2021
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Will Deacon authored
Commit ad6c0028 ("swiotlb: Free tbl memory in swiotlb_exit()") introduced a set_memory_encrypted() call to swiotlb_exit() so that the buffer pages are returned to an encrypted state prior to being freed. Sachin reports that this leads to the following crash on a Power server: [ 0.010799] software IO TLB: tearing down default memory pool [ 0.010805] ------------[ cut here ]------------ [ 0.010808] kernel BUG at arch/powerpc/kernel/interrupt.c:98! Nick spotted that this is because set_memory_encrypted() is issuing an ultracall which doesn't exist for the processor, and should therefore be gated by mem_encrypt_active() to mirror the x86 implementation. Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Claire Chang <tientzu@chromium.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Robin Murphy <robin.murphy@arm.com> Fixes: ad6c0028 ("swiotlb: Free tbl memory in swiotlb_exit()") Suggested-by:
Nicholas Piggin <npiggin@gmail.com> Reported-by:
Sachin Sant <sachinp@linux.vnet.ibm.com> Tested-by:
Sachin Sant <sachinp@linux.vnet.ibm.com> Tested-by:
Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/1905CD70-7656-42AE-99E2-A31FC3812EAC@linux.vnet.ibm.com/ Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad@kernel.org>
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- Jul 24, 2021
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Halil Pasic authored
Since commit 903cd0f3 ("swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing") if code sets swiotlb_force it needs to do so before the swiotlb is initialised. Otherwise io_tlb_default_mem->force_bounce will not get set to true, and devices that use (the default) swiotlb will not bounce despite switolb_force having the value of SWIOTLB_FORCE. Let us restore swiotlb functionality for PV by fulfilling this new requirement. This change addresses what turned out to be a fragility in commit 64e1f0c5 ("s390/mm: force swiotlb for protected virtualization"), which ain't exactly broken in its original context, but could give us some more headache if people backport the broken change and forget this fix. Signed-off-by:
Halil Pasic <pasic@linux.ibm.com> Tested-by:
Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by:
Christian Borntraeger <borntraeger@de.ibm.com> Fixes: 903cd0f3 ("swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing") Fixes: 64e1f0c5 ("s390/mm: force swiotlb for protected virtualization") Cc: stable@vger.kernel.org #5.3+ Signed-off-by:
Konrad Rzeszutek Wilk <konrad@kernel.org>
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Will Deacon authored
Although swiotlb_exit() frees the 'slots' metadata array referenced by 'io_tlb_default_mem', it leaves the underlying buffer pages allocated despite no longer being usable. Extend swiotlb_exit() to free the buffer pages as well as the slots array. Cc: Claire Chang <tientzu@chromium.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tested-by:
Nathan Chancellor <nathan@kernel.org> Tested-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad@kernel.org>
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Will Deacon authored
A recent debugging session would have been made a little bit easier if we had noticed sooner that swiotlb_exit() was being called during boot. Add a simple diagnostic message to swiotlb_exit() to complement the one from swiotlb_print_info() during initialisation. Cc: Claire Chang <tientzu@chromium.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/20210705190352.GA19461@willie-the-truck Suggested-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tested-by:
Nathan Chancellor <nathan@kernel.org> Tested-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad@kernel.org>
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Will Deacon authored
Since commit 69031f50 ("swiotlb: Set dev->dma_io_tlb_mem to the swiotlb pool used"), 'struct device' may hold a copy of the global 'io_default_tlb_mem' pointer if the device is using swiotlb for DMA. A subsequent call to swiotlb_exit() will therefore leave dangling pointers behind in these device structures, resulting in KASAN splats such as: | BUG: KASAN: use-after-free in __iommu_dma_unmap_swiotlb+0x64/0xb0 | Read of size 8 at addr ffff8881d7830000 by task swapper/0/0 | | CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.12.0-rc3-debug #1 | Hardware name: HP HP Desktop M01-F1xxx/87D6, BIOS F.12 12/17/2020 | Call Trace: | <IRQ> | dump_stack+0x9c/0xcf | print_address_description.constprop.0+0x18/0x130 | kasan_report.cold+0x7f/0x111 | __iommu_dma_unmap_swiotlb+0x64/0xb0 | nvme_pci_complete_rq+0x73/0x130 | blk_complete_reqs+0x6f/0x80 | __do_softirq+0xfc/0x3be Convert 'io_default_tlb_mem' to a static structure, so that the per-device pointers remain valid after swiotlb_exit() has been invoked. All users are updated to reference the static structure directly, using the 'nslabs' field to determine whether swiotlb has been initialised. The 'slots' array is still allocated dynamically and referenced via a pointer rather than a flexible array member. Cc: Claire Chang <tientzu@chromium.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Fixes: 69031f50 ("swiotlb: Set dev->dma_io_tlb_mem to the swiotlb pool used") Reported-by:
Nathan Chancellor <nathan@kernel.org> Tested-by:
Nathan Chancellor <nathan@kernel.org> Tested-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad@kernel.org>
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Will Deacon authored
When CONFIG_OF_ADDRESS=n, of_dma_set_restricted_buffer() returns -ENODEV and breaks the boot for sparc[64] machines. Return 0 instead, since the function is essentially a glorified NOP in this configuration. Cc: Claire Chang <tientzu@chromium.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reported-by:
Guenter Roeck <linux@roeck-us.net> Suggested-by:
Robin Murphy <robin.murphy@arm.com> Tested-by:
Guenter Roeck <linux@roeck-us.net> Tested-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20210702030807.GA2685166@roeck-us.net Fixes: fec9b625 ("of: Add plumbing for restricted DMA pool") Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad@kernel.org>
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- Jul 14, 2021
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Dominique Martinet authored
This is a follow-up on 5f89468e ("swiotlb: manipulate orig_addr when tlb_addr has offset") which fixed unaligned dma mappings, making sure the following overflows are caught: - offset of the start of the slot within the device bigger than requested address' offset, in other words if the base address given in swiotlb_tbl_map_single to create the mapping (orig_addr) was after the requested address for the sync (tlb_offset) in the same block: |------------------------------------------| block <----------------------------> mapped part of the block ^ orig_addr ^ invalid tlb_addr for sync - if the resulting offset was bigger than the allocation size this one could happen if the mapping was not until the end. e.g. |------------------------------------------| block <---------------------> mapped part of the block ^ ^ orig_addr invalid tlb_addr Both should never happen so print a warning and bail out without trying to adjust the sizes/offsets: the first one could try to sync from orig_addr to whatever is left of the requested size, but the later really has nothing to sync there... Signed-off-by:
Dominique Martinet <dominique.martinet@atmark-techno.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by:
Bumyong Lee <bumyong.lee@samsung.com> Cc: Chanho Park <chanho61.park@samsung.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by:
Konrad Rzeszutek Wilk <konrad@kernel.org>
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Claire Chang authored
Factor out the debugfs bits from rmem_swiotlb_device_init() into a separate rmem_swiotlb_debugfs_init() to fix the implicit debugfs declarations. Fixes: 461021875c50 ("swiotlb: Add restricted DMA pool initialization") Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Claire Chang <tientzu@chromium.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
If a device is not behind an IOMMU, we look up the device node and set up the restricted DMA when the restricted-dma-pool is presented. Signed-off-by:
Claire Chang <tientzu@chromium.org> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Introduce the new compatible string, restricted-dma-pool, for restricted DMA. One can specify the address and length of the restricted DMA memory region by restricted-dma-pool in the reserved-memory node. Signed-off-by:
Claire Chang <tientzu@chromium.org> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Add the initialization function to create restricted DMA pools from matching reserved-memory nodes. Regardless of swiotlb setting, the restricted DMA pool is preferred if available. The restricted DMA pools provide a basic level of protection against the DMA overwriting buffer contents at unexpected times. However, to protect against general data leakage and system memory corruption, the system needs to provide a way to lock down the memory access, e.g., MPU. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Add the functions, swiotlb_{alloc,free} and is_swiotlb_for_alloc to support the memory allocation from restricted DMA pool. The restricted DMA pool is preferred if available. Note that since coherent allocation needs remapping, one must set up another device coherent pool by shared-dma-pool and use dma_alloc_from_dev_coherent instead for atomic coherent allocation. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Acked-by:
Stefano Stabellini <sstabellini@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Add a new function, swiotlb_release_slots, to make the code reusable for supporting different bounce buffer pools. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Rename find_slots to swiotlb_find_slots and move the maintenance of alloc_size to it for better code reusability later. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Propagate the swiotlb_force into io_tlb_default_mem->force_bounce and use it to determine whether to bounce the data or not. This will be useful later to allow for different pools. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Acked-by:
Stefano Stabellini <sstabellini@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [v2: Includes Will's fix]
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Claire Chang authored
Update is_swiotlb_active to add a struct device argument. This will be useful later to allow for different pools. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Acked-by:
Stefano Stabellini <sstabellini@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Update is_swiotlb_buffer to add a struct device argument. This will be useful later to allow for different pools. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Acked-by:
Stefano Stabellini <sstabellini@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Always have the pointer to the swiotlb pool used in struct device. This could help simplify the code for other pools. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Acked-by:
Stefano Stabellini <sstabellini@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Split the debugfs creation to make the code reusable for supporting different bounce buffer pools. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Claire Chang authored
Add a new function, swiotlb_init_io_tlb_mem, for the io_tlb_mem struct initialization to make the code reusable. Signed-off-by:
Claire Chang <tientzu@chromium.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Stefano Stabellini <sstabellini@kernel.org> Acked-by:
Stefano Stabellini <sstabellini@kernel.org> Tested-by:
Will Deacon <will@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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- Jul 12, 2021
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Linus Torvalds authored
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Hugh Dickins authored
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>
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Hugh Dickins authored
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: cd62734c ("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>
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Hugh Dickins authored
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: 9a73f61b ("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>
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Hugh Dickins authored
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>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
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
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
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
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
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
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
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
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
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() ...
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Linus Torvalds authored
Merge tag 'perf-tools-for-v5.14-2021-07-10' of 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 ...
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- Jul 11, 2021
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linuxLinus Torvalds authored
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 ...
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Mel Gorman authored
Commit dbbee9d5 ("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 a0b8200d ("kbuild: skip per-CPU BTF generation for pahole v1.18-v1.21"). This patch reverts the dummy field and the pahole version check. Fixes: dbbee9d5 ("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>
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Alexandre Belloni authored
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: 7fd70c65 ("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
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
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
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
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"
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxLinus Torvalds authored
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
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git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linuxLinus Torvalds authored
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 ...
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