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- Cache PCIe Device Capabilities register (Amey Narkhede)
- Add pcie_reset_flr() with 'probe' argument (Amey Narkhede)
- Add pdev->reset_methods[] array to track reset method ordering (Amey
Narkhede)
- Remove reset_fn field from pci_dev (Amey Narkhede)
- Add sysfs interface to query and set device reset mechanism (Amey
Narkhede)
- Add pci_set_acpi_fwnode() to set ACPI_COMPANION (Shanker Donthineni)
- Use acpi_pci_power_manageable() instead of duplicating logic (Shanker
Donthineni)
- Set ACPI fwnode early and at the same time with OF (Shanker Donthineni)
- Add support for ACPI _RST reset method (Shanker Donthineni)
- Change reset function 'probe' argument to bool (Amey Narkhede)
* pci/reset:
PCI: Change the type of probe argument in reset functions
PCI: Add support for ACPI _RST reset method
PCI: Setup ACPI fwnode early and at the same time with OF
PCI: Use acpi_pci_power_manageable()
PCI: Add pci_set_acpi_fwnode() to set ACPI_COMPANION
PCI: Allow userspace to query and set device reset mechanism
PCI: Remove reset_fn field from pci_dev
PCI: Add array to track reset method ordering
PCI: Add pcie_reset_flr() with 'probe' argument
PCI: Cache PCIe Device Capabilities register
- Enable Bandwidth Notification only if port supports it (Stuart Hayes)
* pci/portdrv:
PCI/portdrv: Enable Bandwidth Notification only if port supports it
- Call Max Payload Size-related fixup quirks early, so they're considered
by pci_configure_mps() (Marek Behún)
- Restrict Max Payload Size Supported to work around ASMedia ASM1062 SATA
erratum (Marek Behún)
- Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure (Krzysztof
Wilczyński)
* pci/enumeration:
PCI: Return int from pciconfig_read() syscall
PCI: Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure
PCI: Restrict ASMedia ASM1062 SATA Max Payload Size Supported
PCI: Call Max Payload Size-related fixup quirks early
ebda_rsrc_controller() calls iounmap(io_mem) on the error path. Its caller,
ibmphp_access_ebda(), also calls iounmap(io_mem) on good and error paths.
Remove the iounmap(io_mem) invocation from ebda_rsrc_controller().
[bhelgaas: remove item from TODO]
Link: https://lore.kernel.org/r/20210818165751.591185-1-os.vaslot@gmail.com
Signed-off-by: Vishal Aslot <os.vaslot@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
HiSilicon KunPeng920 and KunPeng930 have devices that appear as PCI but are
actually on the AMBA bus. These fake PCI devices can support SVA via the
SMMU stall feature.
DT systems can indicate this in the device tree, but ACPI systems don't
have that mechanism, so add a "dma-can-stall" property manually for them.
[bhelgaas: add text from Robin as comment near quirk]
Link: https://lore.kernel.org/r/1626144876-11352-4-git-send-email-zhangfei.gao@linaro.org
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Previously we assumed that all Root Ports and Switch Downstream Ports
supported Link Bandwidth Notification. Per spec, this is only required
for Ports supporting Links wider than x1 and/or multiple Link speeds
(PCIe r5.0, sec 7.5.3.6).
Because we assumed all Ports supported it, we tried to set up a Bandwidth
Notification IRQ, which failed for devices that don't support IRQs at all,
which meant pcieport didn't attach to the Port at all.
Check the Link Bandwidth Notification Capability bit and enable the service
only when the Port supports it.
[bhelgaas: commit log]
Fixes: e8303bb7a75c ("PCI/LINK: Report degraded links via link bandwidth notification")
Link: https://lore.kernel.org/r/20210512213314.7778-1-stuart.w.hayes@gmail.com
Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org
Some systems, e.g., HiSilicon KunPeng920 and KunPeng930, have devices that
appear as PCI but are actually on the AMBA bus. Some of these fake PCI
devices support a PASID-like feature and they do have a working PASID
capability even though they do not use the PCIe Transport Layer Protocol
and do not support TLP prefixes.
Add a pasid_no_tlp bit for this "PASID works without TLP prefixes" case and
update pci_enable_pasid() so it can enable PASID on these devices.
Set this bit for HiSilicon KunPeng920 and KunPeng930.
[bhelgaas: squashed, commit log]
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/1626144876-11352-2-git-send-email-zhangfei.gao@linaro.org
Link: https://lore.kernel.org/r/1626144876-11352-3-git-send-email-zhangfei.gao@linaro.org
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
pci_resource_end() can be 0 only when pci_resource_start() is 0.
Otherwise, it is definitely an error. In this case, pci_resource_len()
should be regarded as 0. Therefore, determining whether
pci_resource_start() and pci_resource_end() are both 0 can be reduced to
determining only whether pci_resource_end() is 0.
Although only one condition judgment is reduced, the macro function
pci_resource_len() is widely referenced in the kernel. I used defconfig to
compile the latest kernel on X86, and its binary code size was reduced by
about 3KB.
Before:
[ 2] .rela.text RELA 0000000000000000 093bfcb0
0000000001a67168 0000000000000018 I 68 1 8
After:
[ 2] .rela.text RELA 0000000000000000 093bfcb0
0000000001a66598 0000000000000018 I 68 1 8
Link: https://lore.kernel.org/r/20210713072236.3043-1-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Change the type of probe argument in functions which implement reset
methods from int to bool to make the context and intent clear.
Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20210817180500.1253-10-ameynarkhede03@gmail.com
Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
_RST is a standard ACPI method that performs a function level reset of a
device (ACPI v6.3, sec 7.3.25).
Add pci_dev_acpi_reset() to probe for _RST method and execute if present.
The default priority of this reset is set to below device-specific and
above hardware resets.
Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20210817180500.1253-9-ameynarkhede03@gmail.com
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Previously, the ACPI_COMPANION() of a pci_dev was usually set by
acpi_bind_one() in this path:
pci_device_add
pci_configure_device
pci_init_capabilities
device_add
device_platform_notify
acpi_platform_notify
acpi_device_notify # KOBJ_ADD
acpi_bind_one
ACPI_COMPANION_SET
However, things like pci_configure_device() and pci_init_capabilities()
that run before device_add() need the ACPI_COMPANION, e.g.,
acpi_pci_bridge_d3() uses a _DSD method to learn about D3 support. These
places had special-case code to manually look up the ACPI_COMPANION.
Set the ACPI_COMPANION earlier, in pci_setup_device(), so it will be
available while configuring the device. This covers both paths to creating
pci_dev objects:
pci_scan_single_device # for normal non-SR-IOV devices
pci_scan_device
pci_setup_device
pci_set_acpi_fwnode
pci_device_add
pci_iov_add_virtfn # for SR-IOV virtual functions
pci_setup_device
pci_set_acpi_fwnode
Also move the OF fwnode setup to the same spot.
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20210817180500.1253-8-ameynarkhede03@gmail.com
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Use acpi_pci_power_manageable() instead of duplicating the logic in
acpi_pci_bridge_d3(). No functional change intended.
[bhelgaas: split out from
https://lore.kernel.org/r/20210817180500.1253-8-ameynarkhede03@gmail.com]
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Move the existing logic from acpi_pci_bridge_d3() to a separate function
pci_set_acpi_fwnode() to set the ACPI fwnode. No functional change
intended.
Link: https://lore.kernel.org/r/20210817180500.1253-7-ameynarkhede03@gmail.com
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Add "reset_method" sysfs attribute to enable user to query and set
preferred device reset methods and their ordering.
[bhelgaas: on invalid sysfs input, return error and preserve previous
config, as in earlier patch versions]
Co-developed-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20210817180500.1253-6-ameynarkhede03@gmail.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
"reset_fn" indicates whether the device supports any reset mechanism.
Remove the use of reset_fn in favor of the reset_methods array that tracks
supported reset mechanisms of a device and their ordering.
The octeon driver incorrectly used reset_fn to detect whether the device
supports FLR or not. Use pcie_reset_flr() to probe whether it supports FLR.
Co-developed-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20210817180500.1253-5-ameynarkhede03@gmail.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Add reset_methods[] in struct pci_dev to keep track of reset mechanisms
supported by the device and their ordering.
Refactor probing and reset functions to take advantage of calling
convention of reset functions.
Co-developed-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20210817180500.1253-4-ameynarkhede03@gmail.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Most reset methods are of the form "pci_*_reset(dev, probe)". pcie_flr()
was an exception because it relied on a separate pcie_has_flr() function
instead of taking a "probe" argument.
Add "pcie_reset_flr(dev, probe)" to follow the convention. Remove
pcie_has_flr().
Some pcie_flr() callers that did not use pcie_has_flr() remain.
[bhelgaas: commit log, rework pcie_reset_flr() to use dev->devcap directly]
Link: https://lore.kernel.org/r/20210817180500.1253-3-ameynarkhede03@gmail.com
Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Add a new member called devcap in struct pci_dev for caching the PCIe
Device Capabilities register to avoid reading PCI_EXP_DEVCAP multiple
times.
Refactor pcie_has_flr() to use cached device capabilities.
Link: https://lore.kernel.org/r/20210817180500.1253-2-ameynarkhede03@gmail.com
Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Change pciconfig_read() syscall "err" return value from long to int. This
makes it consistent with pciconfig_write().
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20210729233755.1509616-2-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The pciconfig_read() syscall reads PCI configuration space using
hardware-dependent config accessors.
If the read fails on PCI, most accessors don't return an error; they
pretend the read was successful and got ~0 data from the device, so the
syscall returns success with ~0 data in the buffer.
When the accessor does return an error, pciconfig_read() normally fills the
user's buffer with ~0 and returns an error in errno. But after
e4585da22ad0 ("pci syscall.c: Switch to refcounting API"), we don't fill
the buffer with ~0 for the EPERM "user lacks CAP_SYS_ADMIN" error.
Userspace may rely on the ~0 data to detect errors, but after e4585da22ad0,
that would not detect CAP_SYS_ADMIN errors.
Restore the original behaviour of filling the buffer with ~0 when the
CAP_SYS_ADMIN check fails.
[bhelgaas: commit log, fold in Nathan's fix
https://lore.kernel.org/r/20210803200836.500658-1-nathan@kernel.org]
Fixes: e4585da22ad0 ("pci syscall.c: Switch to refcounting API")
Link: https://lore.kernel.org/r/20210729233755.1509616-1-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().
Link: https://lore.kernel.org/r/20210802162630.2219813-4-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
The ASMedia ASM1062 SATA controller advertises Max_Payload_Size_Supported
of 512, but in fact it cannot handle incoming TLPs with payload size of
512.
We discovered this issue on PCIe controllers capable of MPS = 512 (Aardvark
and DesignWare), where the issue presents itself as an External Abort.
Bjorn Helgaas says:
Probably ASM1062 reports a Malformed TLP error when it receives a data
payload of 512 bytes, and Aardvark, DesignWare, etc convert this to an
arm64 External Abort. [1]
To avoid this problem, limit the ASM1062 Max Payload Size Supported to 256
bytes, so we set the Max Payload Size of devices that may send TLPs to the
ASM1062 to 256 or less.
[1] https://lore.kernel.org/linux-pci/20210601170907.GA1949035@bjorn-Precision-5520/
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=212695
Link: https://lore.kernel.org/r/20210624171418.27194-2-kabel@kernel.org
Reported-by: Rötti <espressobinboardarmbiantempmailaddress@posteo.de>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
Cc: stable@vger.kernel.org
pci_device_add() calls HEADER fixups after pci_configure_device(), which
configures Max Payload Size.
Convert MPS-related fixups to EARLY fixups so pci_configure_mps() takes
them into account.
Fixes: 27d868b5e6cfa ("PCI: Set MPS to match upstream bridge")
Link: https://lore.kernel.org/r/20210624171418.27194-1-kabel@kernel.org
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
pci_ioremap_bar() and pci_ioremap_wc_bar() shared similar implementations
but differed in unimportant ways. Align them by adding a shared helper,
__pci_ioremap_resource().
Upgrade warning message to error level, since it indicates a driver defect.
Remove WARN_ON() from WC path in favor of the error message.
[bhelgaas: commit log, use ioremap() since pci_iomap_range() doesn't add
anything]
Link: https://lore.kernel.org/r/20210713102436.304693-1-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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>
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>
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>
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>
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.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
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()
...
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.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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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
...
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>
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
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Merge tag '5.14-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
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
Drivers:
- svc: two small fixes
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Merge tag 'i3c/for-5.14' of 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
- 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)
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Merge tag 'thermal-v5.14-rc1' of 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
...
- 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
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Merge tag 'kbuild-v5.14' of 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
...
- 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.
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Merge tag 's390-5.14-2' of 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
...
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.
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Merge tag 'arm-defconfig-5.14' of 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
...
