| Age | Commit message (Collapse) | Author |
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- Evaluate ACPI "PCI Boot Configuration"_DSM (Benjamin Herrenschmidt)
- Don't auto-realloc if we're preserving firmware config (Benjamin
Herrenschmidt)
- Allow arm64 to reallocate resources if necessary (Benjamin
Herrenschmidt)
- Preserve firmware config on arm64 when desired (Benjamin Herrenschmidt)
- Simplify resource distribution to hotplug bridges (Nicholas Johnson)
* pci/resource:
PCI: Skip resource distribution when no hotplug bridges
PCI: Simplify pci_bus_distribute_available_resources()
arm64: PCI: Preserve firmware configuration when desired
arm64: PCI: Allow resource reallocation if necessary
PCI: Don't auto-realloc if we're preserving firmware config
PCI/ACPI: Evaluate PCI Boot Configuration _DSM
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- Prevent drivers that use dma_virt_ops from using peer-to-peer DMA
(Logan Gunthorpe)
* pci/peer-to-peer:
PCI/P2PDMA: Fix missing check for dma_virt_ops
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- Generalize multi-function power dependency device links (Abhishek Sahu)
- Add NVIDIA GPU multi-function power dependencies (Abhishek Sahu)
- Optimize /proc/bus/pci/devices by using seq_puts() instead of
seq_printf() (Markus Elfring)
- Enable NVIDIA HDA controllers if BIOS didn't (Lukas Wunner)
* pci/misc:
PCI: Enable NVIDIA HDA controllers
PCI: Use seq_puts() instead of seq_printf() in show_device()
PCI: Add NVIDIA GPU multi-function power dependencies
PCI: Generalize multi-function power dependency device links
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- If user prevents VF probing, return error instead of pretending a
driver has claimed the VF (Alex Williamson)
- Always allow probing with driver_override (Alex Williamson)
- Decode PCIe 32 GT/s link speed (Gustavo Pimentel)
- Ignore lockdep for sysfs remove to avoid lockdep false positive (Marek
Vasut)
* pci/enumeration:
PCI: sysfs: Ignore lockdep for remove attribute
PCI: Decode PCIe 32 GT/s link speed
PCI: Always allow probing with driver_override
PCI: Return error if cannot probe VF
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- Convert docs to reST (Changbin Du)
- Convert PM docs to reST (Mauro Carvalho Chehab)
* pci/docs:
docs: power: convert docs to ReST and rename to *.rst
Documentation: PCI: convert endpoint/pci-test-howto.txt to reST
Documentation: PCI: convert endpoint/pci-test-function.txt to reST
Documentation: PCI: convert endpoint/pci-endpoint-cfs.txt to reST
Documentation: PCI: convert endpoint/pci-endpoint.txt to reST
Documentation: PCI: convert pcieaer-howto.txt to reST
Documentation: PCI: convert pci-error-recovery.txt to reST
Documentation: PCI: convert acpi-info.txt to reST
Documentation: PCI: convert MSI-HOWTO.txt to reST
Documentation: PCI: convert pci-iov-howto.txt to reST
Documentation: PCI: convert PCIEBUS-HOWTO.txt to reST
Documentation: PCI: convert pci.txt to reST
Documentation: add Linux PCI to Sphinx TOC tree
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Many NVIDIA GPUs can be configured as either a single-function video device
or a multi-function device with video at function 0 and an HDA audio
controller at function 1. The HDA controller can be enabled or disabled by
a bit in the function 0 config space.
Some BIOSes leave the HDA disabled, which means the HDMI connector from the
NVIDIA GPU may not work. Sometimes the BIOS enables the HDA if an HDMI
cable is connected at boot time, but that doesn't handle hotplug cases.
Enable the HDA controller on device enumeration and resume and re-read the
header type, which tells us whether the GPU is a multi-function device.
This quirk is limited to NVIDIA PCI devices with the VGA Controller device
class. This is expected to correspond to product configurations where the
NVIDIA GPU has connectors attached. Other products where the device class
is 3D Controller are expected to correspond to configurations where the
NVIDIA GPU is dedicated (dGPU) and has no connectors. See original post
(URL below) for more details.
This commit takes inspiration from an earlier patch by Daniel Drake.
Link: https://lore.kernel.org/r/20190708051744.24039-1-drake@endlessm.com v2
Link: https://lore.kernel.org/r/20190613063514.15317-1-drake@endlessm.com v1
Link: https://devtalk.nvidia.com/default/topic/1024022
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75985
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Drake <drake@endlessm.com>
[bhelgaas: commit log, log message, return early if already enabled]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Aaron Plattner <aplattner@nvidia.com>
Cc: Peter Wu <peter@lekensteyn.nl>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Maik Freudenberg <hhfeuer@gmx.de>
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The driver name in /proc/bus/pci/devices can be printed without a printf
format specification, so use seq_puts() instead of seq_printf().
This issue was detected by using the Coccinelle software.
Link: https://lore.kernel.org/r/a6b110cb-0d0e-5dc3-9ca1-9041609cf74c@web.de
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Drivers that use dma_virt_ops were meant to be rejected when testing
compatibility for P2PDMA.
This check got inadvertently dropped in one of the later versions of the
original patchset, so add it back.
Fixes: 52916982af48 ("PCI/P2PDMA: Support peer-to-peer memory")
Link: https://lore.kernel.org/r/20190702173544.21950-1-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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If "hotplug_bridges == 0", "!dev->is_hotplug_bridge" is always true, so the
loop that divides the remaining resources among hotplug-capable bridges
does nothing.
Check for "hotplug_bridges == 0" earlier, so we don't even have to compute
the amount of remaining resources. No functional change intended.
Link: https://lore.kernel.org/r/PS2P216MB0642C7A485649D2D787A1C6F80000@PS2P216MB0642.KORP216.PROD.OUTLOOK.COM
Link: https://lore.kernel.org/r/20190622210310.180905-3-helgaas@kernel.org
Signed-off-by: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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Reorder pci_bus_distribute_available_resources() to group related code
together. No functional change intended.
Link: https://lore.kernel.org/r/PS2P216MB0642C7A485649D2D787A1C6F80000@PS2P216MB0642.KORP216.PROD.OUTLOOK.COM
Link: https://lore.kernel.org/r/20190622210310.180905-2-helgaas@kernel.org
Signed-off-by: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
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If we must preserve the firmware resource assignments, claim the existing
resources rather than reassigning everything.
Link: https://lore.kernel.org/r/20190615002359.29577-4-benh@kernel.crashing.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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Call pci_assign_unassigned_root_bus_resources() instead of the simpler:
pci_bus_size_bridges(bus);
pci_bus_assign_resources(bus);
pci_assign_unassigned_root_bus_resources() calls:
__pci_bus_size_bridges(bus, add_list);
__pci_bus_assign_resources(bus, add_list, &fail_head);
so this should be equivalent as long as we're able to assign everything.
If we were unable to assign something, previously we did nothing and left
it unassigned, but after this patch, we will attempt to do some
reallocation.
Once we start honoring FW resource allocations, this will bring up the
"reallocation" feature which can help making room for SR-IOV when
necessary.
Link: https://lore.kernel.org/r/20190615002359.29577-1-benh@kernel.crashing.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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Prevent auto-enabling of bridges reallocation when the FW tells us that the
initial configuration must be preserved for a given host bridge.
Link: https://lore.kernel.org/r/20190615002359.29577-3-benh@kernel.crashing.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Evaluate _DSM Function #5, the "PCI Boot Configuration" function. If the
result is 0, the OS should preserve any resource assignments made by the
firmware.
Link: https://lore.kernel.org/r/20190615002359.29577-2-benh@kernel.crashing.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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With CONFIG_PROVE_LOCKING=y, using sysfs to remove a bridge with a device
below it causes a lockdep warning, e.g.,
# echo 1 > /sys/class/pci_bus/0000:00/device/0000:00:00.0/remove
============================================
WARNING: possible recursive locking detected
...
pci_bus 0000:01: busn_res: [bus 01] is released
The remove recursively removes the subtree below the bridge. Each call
uses a different lock so there's no deadlock, but the locks were all
created with the same lockdep key so the lockdep checker can't tell them
apart.
Mark the "remove" sysfs attribute with __ATTR_IGNORE_LOCKDEP() as it is
safe to ignore the lockdep check between different "remove" kernfs
instances.
There's discussion about a similar issue in USB at [1], which resulted in
356c05d58af0 ("sysfs: get rid of some lockdep false positives") and
e9b526fe7048 ("i2c: suppress lockdep warning on delete_device"), which do
basically the same thing for USB "remove" and i2c "delete_device" files.
[1] https://lore.kernel.org/r/Pine.LNX.4.44L0.1204251436140.1206-100000@iolanthe.rowland.org
Link: https://lore.kernel.org/r/20190526225151.3865-1-marek.vasut@gmail.com
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
[bhelgaas: trim commit log, details at above links]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: Tejun Heo <tj@kernel.org>
Cc: Wolfram Sang <wsa@the-dreams.de>
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Convert the PM documents to ReST, in order to allow them to
build with Sphinx.
The conversion is actually:
- add blank lines and indentation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Srivatsa S. Bhat (VMware) <srivatsa@csail.mit.edu>
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PCIe r5.0, sec 7.5.3.18, defines a new 32.0 GT/s bit in the Supported Link
Speeds Vector of Link Capabilities 2. Decode this new speed. This does
not affect the speed of the link, which should be negotiated automatically
by the hardware; it only adds decoding when showing the speed to the user.
Previously, reading the speed of a link operating at this speed showed
"Unknown speed" instead of "32.0 GT/s".
Link: https://lore.kernel.org/lkml/92365e3caf0fc559f9ab14bcd053bfc92d4f661c.1559664969.git.gustavo.pimentel@synopsys.com
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Commit 0e7df22401a3 ("PCI: Add sysfs sriov_drivers_autoprobe to control
VF driver binding") introduced the sriov_drivers_autoprobe attribute
which allows users to prevent the kernel from automatically probing a
driver for new VFs as they are created. This allows VFs to be spawned
without automatically binding the new device to a host driver, such as
in cases where the user intends to use the device only with a meta
driver like vfio-pci. However, the current implementation prevents any
use of drivers_probe with the VF while sriov_drivers_autoprobe=0. This
blocks the now current general practice of setting driver_override
followed by using drivers_probe to bind a device to a specified driver.
The kernel never automatically sets a driver_override therefore it seems
we can assume a driver_override reflects the intent of the user. Also,
probing a device using a driver_override match seems outside the scope
of the 'auto' part of sriov_drivers_autoprobe. Therefore, let's allow
driver_override matches regardless of sriov_drivers_autoprobe, which we
can do by simply testing if a driver_override is set for a device as a
'can probe' condition.
Fixes: 0e7df22401a3 ("PCI: Add sysfs sriov_drivers_autoprobe to control VF driver binding")
Link: https://lore.kernel.org/lkml/155742996741.21878.569845487290798703.stgit@gimli.home
Link: https://lore.kernel.org/linux-pci/155672991496.20698.4279330795743262888.stgit@gimli.home/T/#u
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The NVIDIA Turing GPU is a multi-function PCI device with the following
functions:
- Function 0: VGA display controller
- Function 1: Audio controller
- Function 2: USB xHCI Host controller
- Function 3: USB Type-C UCSI controller
Function 0 is tightly coupled with other functions in the hardware. When
function 0 is in D3, it gates power for hardware blocks used by other
functions, which means those functions only work when function 0 is in D0.
If any of these functions (1/2/3) are in D0, then function 0 should also be
in D0.
Commit 07f4f97d7b4b ("vga_switcheroo: Use device link for HDA controller")
already creates a device link to show the dependency of function 1 on
function 0 of this GPU. Create additional device links to express the
dependencies of functions 2 and 3 on function 0. This means function 0
will be in D0 if any other function is in D0.
[bhelgaas: I think the PCI spec expectation is that functions can be
power-managed independently, so I don't think this device is technically
compliant. For example, the PCIe r5.0 spec, sec 1.4, says "the PCI/PCIe
hardware/software model includes architectural constructs necessary to
discover, configure, and use a Function, without needing Function-specific
knowledge" and sec 5.1 says "D states are associated with a particular
Function" and "PM provides ... a mechanism to identify power management
capabilities of a given Function [and] the ability to transition a Function
into a certain power management state."]
Link: https://lore.kernel.org/lkml/20190606092225.17960-3-abhsahu@nvidia.com
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Although not allowed by the PCI specs, some multi-function devices have
power dependencies between the functions. For example, function 1 may not
work unless function 0 is in the D0 power state.
The existing quirk_gpu_hda() adds a device link to express this dependency
for GPU and HDA devices, but it really is not specific to those device
types.
Generalize it and rename it to pci_create_device_link() so we can create
dependencies between any "consumer" and "producer" functions of a
multi-function device, where the consumer is only functional if the
producer is in D0. This reorganization should not affect any
functionality.
Link: https://lore.kernel.org/lkml/20190606092225.17960-2-abhsahu@nvidia.com
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
[bhelgaas: commit log, reword diagnostic]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Move the description of struct pci_driver and struct pci_device_id into
in-source comments.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
[bhelgaas: fix kernel-doc warnings related to moving descriptions to
linux/pci.h, fix "space tab" whitespace errors in mod_devicetable.h]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Commit 0e7df22401a3 ("PCI: Add sysfs sriov_drivers_autoprobe to control
VF driver binding") allows the user to specify that drivers for VFs of
a PF should not be probed, but it actually causes pci_device_probe() to
return success back to the driver core in this case. Therefore by all
sysfs appearances the device is bound to a driver, the driver link from
the device exists as does the device link back from the driver, yet the
driver's probe function is never called on the device. We also fail to
do any sort of cleanup when we're prohibited from probing the device,
the IRQ setup remains in place and we even hold a device reference.
Instead, abort with errno before any setup or references are taken when
pci_device_can_probe() prevents us from trying to probe the device.
Link: https://lore.kernel.org/lkml/155672991496.20698.4279330795743262888.stgit@gimli.home
Fixes: 0e7df22401a3 ("PCI: Add sysfs sriov_drivers_autoprobe to control VF driver binding")
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Add index.rst for PCI subsystem. More docs will be added later.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull UBIFS fixes from Richard Weinberger:
- build errors wrt xattrs
- mismerge which lead to a wrong Kconfig ifdef
- missing endianness conversion
* tag 'upstream-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
ubifs: Convert xattr inum to host order
ubifs: Use correct config name for encryption
ubifs: Fix build error without CONFIG_UBIFS_FS_XATTR
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Merge yet more updates from Andrew Morton:
"A few final bits:
- large changes to vmalloc, yielding large performance benefits
- tweak the console-flush-on-panic code
- a few fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
panic: add an option to replay all the printk message in buffer
initramfs: don't free a non-existent initrd
fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount
mm/compaction.c: correct zone boundary handling when isolating pages from a pageblock
mm/vmap: add DEBUG_AUGMENT_LOWEST_MATCH_CHECK macro
mm/vmap: add DEBUG_AUGMENT_PROPAGATE_CHECK macro
mm/vmalloc.c: keep track of free blocks for vmap allocation
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- remove unneeded use of cc-option, cc-disable-warning, cc-ldoption
- exclude tracked files from .gitignore
- re-enable -Wint-in-bool-context warning
- refactor samples/Makefile
- stop building immediately if syncconfig fails
- do not sprinkle error messages when $(CC) does not exist
- move arch/alpha/defconfig to the configs subdirectory
- remove crappy header search path manipulation
- add comment lines to .config to clarify the end of menu blocks
- check uniqueness of module names (adding new warnings intentionally)
* tag 'kbuild-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (24 commits)
kconfig: use 'else ifneq' for Makefile to improve readability
kbuild: check uniqueness of module names
kconfig: Terminate menu blocks with a comment in the generated config
kbuild: add LICENSES to KBUILD_ALLDIRS
kbuild: remove 'addtree' and 'flags' magic for header search paths
treewide: prefix header search paths with $(srctree)/
media: prefix header search paths with $(srctree)/
media: remove unneeded header search paths
alpha: move arch/alpha/defconfig to arch/alpha/configs/defconfig
kbuild: terminate Kconfig when $(CC) or $(LD) is missing
kbuild: turn auto.conf.cmd into a mandatory include file
.gitignore: exclude .get_maintainer.ignore and .gitattributes
kbuild: add all Clang-specific flags unconditionally
kbuild: Don't try to add '-fcatch-undefined-behavior' flag
kbuild: add some extra warning flags unconditionally
kbuild: add -Wvla flag unconditionally
arch: remove dangling asm-generic wrappers
samples: guard sub-directories with CONFIG options
kbuild: re-enable int-in-bool-context warning
MAINTAINERS: kbuild: Add pattern for scripts/*vmlinux*
...
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Some I2C core API additions which are kind of simple but enhance error
checking for users a lot, especially by returning errno now.
There are wrappers to still support the old API but it will be removed
once all users are converted"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: add device-managed version of i2c_new_dummy
i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Some bug fixes, and an update to the URL's for the final version of
Unicode 12.1.0"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: avoid panic during forced reboot due to aborted journal
ext4: fix block validity checks for journal inodes using indirect blocks
unicode: update to Unicode 12.1.0 final
unicode: add missing check for an error return from utf8lookup()
ext4: fix miscellaneous sparse warnings
ext4: unsigned int compared against zero
ext4: fix use-after-free in dx_release()
ext4: fix data corruption caused by overlapping unaligned and aligned IO
jbd2: fix potential double free
ext4: zero out the unused memory region in the extent tree block
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Pull cifs fixes from Steve French:
"Minor cleanup and fixes, one for stable, four rdma (smbdirect)
related. Also adds SEEK_HOLE support"
* tag '5.2-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: add support for SEEK_DATA and SEEK_HOLE
Fixed https://bugzilla.kernel.org/show_bug.cgi?id=202935 allow write on the same file
cifs: Allocate memory for all iovs in smb2_ioctl
cifs: Don't match port on SMBDirect transport
cifs:smbd Use the correct DMA direction when sending data
cifs:smbd When reconnecting to server, call smbd_destroy() after all MIDs have been called
cifs: use the right include for signal_pending()
smb3: trivial cleanup to smb2ops.c
cifs: cleanup smb2ops.c and normalize strings
smb3: display session id in debug data
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling updates from Ingo Molnar:
"perf.data:
- Streaming compression of perf ring buffer into
PERF_RECORD_COMPRESSED user space records, resulting in ~3-5x
perf.data file size reduction on variety of tested workloads what
saves storage space on larger server systems where perf.data size
can easily reach several tens or even hundreds of GiBs, especially
when profiling with DWARF-based stacks and tracing of context
switches.
perf record:
- Improve -user-regs/intr-regs suggestions to overcome errors
perf annotate:
- Remove hist__account_cycles() from callback, speeding up branch
processing (perf record -b)
perf stat:
- Add a 'percore' event qualifier, e.g.: -e
cpu/event=0,umask=0x3,percore=1/, that sums up the event counts for
both hardware threads in a core.
We can already do this with --per-core, but it's often useful to do
this together with other metrics that are collected per hardware
thread.
I.e. now its possible to do this per-event, and have it mixed with
other events not aggregated by core.
arm64:
- Map Brahma-B53 CPUID to cortex-a53 events.
- Add Cortex-A57 and Cortex-A72 events.
csky:
- Add DWARF register mappings for libdw, allowing --call-graph=dwarf
to work on the C-SKY arch.
x86:
- Add support for recording and printing XMM registers, available,
for instance, on Icelake.
- Add uncore_upi (Intel's "Ultra Path Interconnect" events) JSON
support. UPI replaced the Intel QuickPath Interconnect (QPI) in
Xeon Skylake-SP.
Intel PT:
- Fix instructions sampling rate.
- Timestamp fixes.
- Improve exported-sql-viewer GUI, allowing, for instance, to
copy'n'paste the trees, useful for e-mailing"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (73 commits)
perf stat: Support 'percore' event qualifier
perf stat: Factor out aggregate counts printing
perf tools: Add a 'percore' event qualifier
perf docs: Add description for stderr
perf intel-pt: Fix sample timestamp wrt non-taken branches
perf intel-pt: Fix improved sample timestamp
perf intel-pt: Fix instructions sampling rate
perf regs x86: Add X86 specific arch__intr_reg_mask()
perf parse-regs: Add generic support for arch__intr/user_reg_mask()
perf parse-regs: Split parse_regs
perf vendor events arm64: Add Cortex-A57 and Cortex-A72 events
perf vendor events arm64: Map Brahma-B53 CPUID to cortex-a53 events
perf vendor events arm64: Remove [[:xdigit:]] wildcard
perf jevents: Remove unused variable
perf test zstd: Fixup verbose mode output
perf tests: Implement Zstd comp/decomp integration test
perf inject: Enable COMPRESSED record decompression
perf report: Implement perf.data record decompression
perf record: Implement -z,--compression_level[=<n>] option
perf report: Add stub processing of compressed events for -D
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull clocksource updates from Ingo Molnar:
"Misc clocksource/clockevent driver updates that came in a bit late but
are ready for v5.2"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
misc: atmel_tclib: Do not probe already used TCBs
clocksource/drivers/timer-atmel-tcb: Convert tc_clksrc_suspend|resume() to static
clocksource/drivers/tcb_clksrc: Rename the file for consistency
clocksource/drivers/timer-atmel-pit: Rework Kconfig option
clocksource/drivers/tcb_clksrc: Move Kconfig option
ARM: at91: Implement clocksource selection
clocksource/drivers/tcb_clksrc: Use tcb as sched_clock
clocksource/drivers/tcb_clksrc: Stop depending on atmel_tclib
ARM: at91: move SoC specific definitions to SoC folder
clocksource/drivers/timer-milbeaut: Cleanup common register accesses
clocksource/drivers/timer-milbeaut: Add shutdown function
clocksource/drivers/timer-milbeaut: Fix to enable one-shot timer
clocksource/drivers/tegra: Rework for compensation of suspend time
clocksource/drivers/sp804: Add COMPILE_TEST to CONFIG_ARM_TIMER_SP804
clocksource/drivers/sun4i: Add a compatible for suniv
dt-bindings: timer: Add Allwinner suniv timer
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull IRQ chip updates from Ingo Molnar:
"A late irqchips update:
- New TI INTR/INTA set of drivers
- Rewrite of the stm32mp1-exti driver as a platform driver
- Update the IOMMU MSI mapping API to be RT friendly
- A number of cleanups and other low impact fixes"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
iommu/dma-iommu: Remove iommu_dma_map_msi_msg()
irqchip/gic-v3-mbi: Don't map the MSI page in mbi_compose_m{b, s}i_msg()
irqchip/ls-scfg-msi: Don't map the MSI page in ls_scfg_msi_compose_msg()
irqchip/gic-v3-its: Don't map the MSI page in its_irq_compose_msi_msg()
irqchip/gicv2m: Don't map the MSI page in gicv2m_compose_msi_msg()
iommu/dma-iommu: Split iommu_dma_map_msi_msg() in two parts
genirq/msi: Add a new field in msi_desc to store an IOMMU cookie
arm64: arch_k3: Enable interrupt controller drivers
irqchip/ti-sci-inta: Add msi domain support
soc: ti: Add MSI domain bus support for Interrupt Aggregator
irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver
dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings
irqchip/ti-sci-intr: Add support for Interrupt Router driver
dt-bindings: irqchip: Introduce TISCI Interrupt router bindings
gpio: thunderx: Use the default parent apis for {request,release}_resources
genirq: Introduce irq_chip_{request,release}_resource_parent() apis
firmware: ti_sci: Add helper apis to manage resources
firmware: ti_sci: Add RM mapping table for am654
firmware: ti_sci: Add support for IRQ management
firmware: ti_sci: Add support for RM core ops
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Ingo Molnar:
"Fix an EFI-fb regression that affects certain x86 systems"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
fbdev/efifb: Ignore framebuffer memmap entries that lack any memory types
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core fixes from Ingo Molnar:
"This fixes a particularly thorny munmap() bug with MPX, plus fixes a
host build environment assumption in objtool"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Allow AR to be overridden with HOSTAR
x86/mpx, mm/core: Fix recursive munmap() corruption
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Pull ARM SoC late updates from Olof Johansson:
"This is some material that we picked up into our tree late. Most of it
are smaller fixes and additions, some defconfig updates due to recent
development, etc.
Code-wise the largest portion is a series of PM updates for the at91
platform, and those have been in linux-next a while through the at91
tree before we picked them up"
* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
arm64: dts: sprd: Add clock properties for serial devices
Opt out of scripts/get_maintainer.pl
ARM: ixp4xx: Remove duplicated include from common.c
soc: ixp4xx: qmgr: Fix an NULL vs IS_ERR() check in probe
arm64: tegra: Disable XUSB support on Jetson TX2
arm64: tegra: Enable SMMU translation for PCI on Tegra186
arm64: tegra: Fix insecure SMMU users for Tegra186
arm64: tegra: Select ARM_GIC_PM
amba: tegra-ahb: Mark PM functions as __maybe_unused
ARM: dts: logicpd-som-lv: Fix MMC1 card detect
ARM: mvebu: drop return from void function
ARM: mvebu: prefix coprocessor operand with p
ARM: mvebu: drop unnecessary label
ARM: mvebu: fix a leaked reference by adding missing of_node_put
ARM: socfpga_defconfig: enable LTC2497
ARM: mvebu: kirkwood: remove error message when retrieving mac address
ARM: at91: sama5: make ov2640 as a module
ARM: OMAP1: ams-delta: fix early boot crash when LED support is disabled
ARM: at91: remove HAVE_FB_ATMEL for sama5 SoC as they use DRM
soc/fsl/qe: Fix an error code in qe_pin_request()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"One fix going back to stable, for a bug on 32-bit introduced when we
added support for THREAD_INFO_IN_TASK.
A fix for a typo in a recent rework of our hugetlb code that leads to
crashes on 64-bit when using hugetlbfs with a 4K PAGE_SIZE.
Two fixes for our recent rework of the address layout on 64-bit hash
CPUs, both only triggered when userspace tries to access addresses
outside the user or kernel address ranges.
Finally a fix for a recently introduced double free in an error path
in our cacheinfo code.
Thanks to: Aneesh Kumar K.V, Christophe Leroy, Sachin Sant, Tobin C.
Harding"
* tag 'powerpc-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/cacheinfo: Remove double free
powerpc/mm/hash: Fix get_region_id() for invalid addresses
powerpc/mm: Drop VM_BUG_ON in get_region_id()
powerpc/mm: Fix crashes with hugepages & 4K pages
powerpc/32s: fix flush_hash_pages() on SMP
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull a few more MIPS updates from Paul Burton:
"Some SGI IP27 specific PCI rework and a batch of fixes:
- A build fix for BMIPS5000 configurations with
CONFIG_HW_PERF_EVENTS=y, which also neatly removes some #ifdefery.
- A fix to report supported ISAs correctly on older Ingenic SoCs
which incorrectly indicate MIPSr2 support in their cop0 Config
register.
- Some PCI modernization for SGI IP27 systems as part of ongoing work
to support some other SGI systems.
- A fix allowing use of appended DTB files with generic kernels.
- DMA mask fixes for SGI IP22 & Alchemy systems"
* tag 'mips_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: Alchemy: add DMA masks for on-chip ethernet
MIPS: SGI-IP22: provide missing dma_mask/coherent_dma_mask
generic: fix appended dtb support
MIPS: SGI-IP27: abstract chipset irq from bridge
MIPS: SGI-IP27: use generic PCI driver
MIPS: Fix Ingenic SoCs sometimes reporting wrong ISA
MIPS: perf: Fix build with CONFIG_CPU_BMIPS5000 enabled
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git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Pull RISC-V updates from Palmer Dabbelt:
"This contains an assortment of RISC-V related patches that I'd like to
target for the 5.2 merge window. Most of the patches are cleanups, but
there are a handful of user-visible changes:
- The nosmp and nr_cpus command-line arguments are now supported,
which work like normal.
- The SBI console no longer installs itself as a preferred console,
we rely on standard mechanisms (/chosen, command-line, hueristics)
instead.
- sfence_remove_sfence_vma{,_asid} now pass their arguments along to
the SBI call.
- Modules now support BUG().
- A missing sfence.vma during boot has been added. This bug only
manifests during boot.
- The arch/riscv support for SiFive's L2 cache controller has been
merged, which should un-block the EDAC framework work.
I've only tested this on QEMU again, as I didn't have time to get
things running on the Unleashed. The latest master from this morning
merges in cleanly and passes the tests as well"
* tag 'riscv-for-linus-5.2-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: (31 commits)
riscv: fix locking violation in page fault handler
RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs
RISC-V: Add DT documentation for SiFive L2 Cache Controller
RISC-V: Avoid using invalid intermediate translations
riscv: Support BUG() in kernel module
riscv: Add the support for c.ebreak check in is_valid_bugaddr()
riscv: support trap-based WARN()
riscv: fix sbi_remote_sfence_vma{,_asid}.
riscv: move switch_mm to its own file
riscv: move flush_icache_{all,mm} to cacheflush.c
tty: Don't force RISCV SBI console as preferred console
RISC-V: Access CSRs using CSR numbers
RISC-V: Add interrupt related SCAUSE defines in asm/csr.h
RISC-V: Use tabs to align macro values in asm/csr.h
RISC-V: Fix minor checkpatch issues.
RISC-V: Support nr_cpus command line option.
RISC-V: Implement nosmp commandline option.
RISC-V: Add RISC-V specific arch_match_cpu_phys_id
riscv: vdso: drop unnecessary cc-ldoption
riscv: call pm_power_off from machine_halt / machine_power_off
...
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'ifeq ... else ifneq ... endif' notation is supported by GNU Make 3.81
or later, which is the requirement for building the kernel since
commit 37d69ee30808 ("docs: bump minimal GNU Make version to 3.81").
Use it to improve the readability.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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