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Author SHA1 Message Date
Christian Marangi
8a7729cda2 PM / devfreq: Fix buffer overflow in trans_stat_show 
commit 08e23d05fa upstream.

Fix buffer overflow in trans_stat_show().

Convert simple snprintf to the more secure scnprintf with size of
PAGE_SIZE.

Add condition checking if we are exceeding PAGE_SIZE and exit early from
loop. Also add at the end a warning that we exceeded PAGE_SIZE and that
stats is disabled.

Return -EFBIG in the case where we don't have enough space to write the
full transition table.

Also document in the ABI that this function can return -EFBIG error.

Link: https://lore.kernel.org/all/20231024183016.14648-2-ansuelsmth@gmail.com/
Cc: stable@vger.kernel.org
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218041
Fixes: e552bbaf5b ("PM / devfreq: Add sysfs node for representing frequency transition information.")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-01-31 16:16:58 -08:00
Sumit Garg
1c9561b438 tee: optee: Fix supplicant based device enumeration 
[ Upstream commit 7269cba53d ]

Currently supplicant dependent optee device enumeration only registers
devices whenever tee-supplicant is invoked for the first time. But it
forgets to remove devices when tee-supplicant daemon stops running and
closes its context gracefully. This leads to following error for fTPM
driver during reboot/shutdown:

[   73.466791] tpm tpm0: ftpm_tee_tpm_op_send: SUBMIT_COMMAND invoke error: 0xffff3024

Fix this by adding an attribute for supplicant dependent devices so that
the user-space service can detect and detach supplicant devices before
closing the supplicant:

$ for dev in /sys/bus/tee/devices/*; do if [[ -f "$dev/need_supplicant" && -f "$dev/driver/unbind" ]]; \
      then echo $(basename "$dev") > $dev/driver/unbind; fi done

Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Closes: https://github.com/OP-TEE/optee_os/issues/6094
Fixes: 5f178bb71e ("optee: enable support for multi-stage bus enumeration")
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
[jw: fixed up Date documentation]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2023-12-13 18:39:12 +01:00
Tzung-Bi Shih
a3f6c1447d platform/chrome: chromeos_acpi: print hex string for ACPI_TYPE_BUFFER 
commit 0820debb7d upstream.

`element->buffer.pointer` should be binary blob.  `%s` doesn't work
perfect for them.

Print hex string for ACPI_TYPE_BUFFER.  Also update the documentation
to reflect this.

Fixes: 0a4cad9c11 ("platform/chrome: Add ChromeOS ACPI device driver")
Cc: stable@vger.kernel.org
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230803011245.3773756-1-tzungbi@kernel.org
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-09-13 09:43:03 +02:00
Randy Dunlap
365ce3f86b docs: ABI: fix spelling/grammar in SBEFIFO timeout interface 
[ Upstream commit 2cd9ec2a51 ]

Correct spelling problems as identified by codespell.
Correct one grammar error.

Fixes: 9a93de620e ("docs: ABI: testing: Document the SBEFIFO timeout interface")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Eddie James <eajames@linux.ibm.com>
Cc: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230710052305.29611-1-rdunlap@infradead.org
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2023-09-13 09:42:54 +02:00
Daniel Sneddon
c66ebe070d x86/speculation: Add Gather Data Sampling mitigation 
commit 8974eb5882 upstream

Gather Data Sampling (GDS) is a hardware vulnerability which allows
unprivileged speculative access to data which was previously stored in
vector registers.

Intel processors that support AVX2 and AVX512 have gather instructions
that fetch non-contiguous data elements from memory. On vulnerable
hardware, when a gather instruction is transiently executed and
encounters a fault, stale data from architectural or internal vector
registers may get transiently stored to the destination vector
register allowing an attacker to infer the stale data using typical
side channel techniques like cache timing attacks.

This mitigation is different from many earlier ones for two reasons.
First, it is enabled by default and a bit must be set to *DISABLE* it.
This is the opposite of normal mitigation polarity. This means GDS can
be mitigated simply by updating microcode and leaving the new control
bit alone.

Second, GDS has a "lock" bit. This lock bit is there because the
mitigation affects the hardware security features KeyLocker and SGX.
It needs to be enabled and *STAY* enabled for these features to be
mitigated against GDS.

The mitigation is enabled in the microcode by default. Disable it by
setting gather_data_sampling=off or by disabling all mitigations with
mitigations=off. The mitigation status can be checked by reading:

    /sys/devices/system/cpu/vulnerabilities/gather_data_sampling

Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-08-08 20:03:48 +02:00
Demi Marie Obenour
cd1a8952ff xen: speed up grant-table reclaim 
commit c04e989484 upstream.

When a grant entry is still in use by the remote domain, Linux must put
it on a deferred list.  Normally, this list is very short, because
the PV network and block protocols expect the backend to unmap the grant
first.  However, Qubes OS's GUI protocol is subject to the constraints
of the X Window System, and as such winds up with the frontend unmapping
the window first.  As a result, the list can grow very large, resulting
in a massive memory leak and eventual VM freeze.

To partially solve this problem, make the number of entries that the VM
will attempt to free at each iteration tunable.  The default is still
10, but it can be overridden via a module parameter.

This is Cc: stable because (when combined with appropriate userspace
changes) it fixes a severe performance and stability problem for Qubes
OS users.

Cc: stable@vger.kernel.org
Signed-off-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20230726165354.1252-1-demi@invisiblethingslab.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-08-03 10:24:14 +02:00
Bhupesh Sharma
c494fe1b66 usb: misc: eud: Fix eud sysfs path (use 'qcom_eud') 
[ Upstream commit f16135918b ]

The eud sysfs enablement path is currently mentioned in the
Documentation as:
  /sys/bus/platform/drivers/eud/.../enable

Instead it should be:
  /sys/bus/platform/drivers/qcom_eud/.../enable

Fix the same.

Fixes: 9a1bf58ccd ("usb: misc: eud: Add driver support for Embedded USB Debugger(EUD)")
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Link: https://lore.kernel.org/r/20230517211756.2483552-2-bhupesh.sharma@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2023-07-19 16:21:53 +02:00
Daniel Scally
8dd58d3c13 usb: gadget: uvc: Make bSourceID read/write 
[ Upstream commit b3c839bd8a ]

At the moment, the UVC function graph is hardcoded IT -> PU -> OT.
To add XU support we need the ability to insert the XU descriptors
into the chain. To facilitate that, make the output terminal's
bSourceID attribute writeable so that we can configure its source.

Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Link: https://lore.kernel.org/r/20230206161802.892954-2-dan.scally@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2023-03-11 13:55:38 +01:00
Kees Cook
3f38c21707 docs: Fix path paste-o for /sys/kernel/warn_count 
commit 00dd027f72 upstream.

Running "make htmldocs" shows that "/sys/kernel/oops_count" was
duplicated. This should have been "warn_count":

  Warning: /sys/kernel/oops_count is defined 2 times:
  ./Documentation/ABI/testing/sysfs-kernel-warn_count:0
  ./Documentation/ABI/testing/sysfs-kernel-oops_count:0

Fix the typo.

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/linux-doc/202212110529.A3Qav8aR-lkp@intel.com
Fixes: 8b05aa2633 ("panic: Expose "warn_count" to sysfs")
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-01-24 07:24:41 +01:00
Kees Cook
72c93f9897 panic: Expose "warn_count" to sysfs 
commit 8b05aa2633 upstream.

Since Warn count is now tracked and is a fairly interesting signal, add
the entry /sys/kernel/warn_count to expose it to userspace.

Cc: Petr Mladek <pmladek@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: tangmeng <tangmeng@uniontech.com>
Cc: "Guilherme G. Piccoli" <gpiccoli@igalia.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221117234328.594699-6-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-01-24 07:24:41 +01:00
Kees Cook
46cacd7913 exit: Expose "oops_count" to sysfs 
commit 9db89b4111 upstream.

Since Oops count is now tracked and is a fairly interesting signal, add
the entry /sys/kernel/oops_count to expose it to userspace.

Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Jann Horn <jannh@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221117234328.594699-3-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-01-24 07:24:41 +01:00
Xiaochen Shen
c91e4513bc dmaengine: idxd: Make read buffer sysfs attributes invisible for Intel IAA 
[ Upstream commit 9a8ddb35a9 ]

In current code, the following sysfs attributes are exposed to user to
show or update the values:
  max_read_buffers (max_tokens)
  read_buffer_limit (token_limit)
  group/read_buffers_allowed (group/tokens_allowed)
  group/read_buffers_reserved (group/tokens_reserved)
  group/use_read_buffer_limit (group/use_token_limit)

>From Intel IAA spec [1], Intel IAA does not support Read Buffer
allocation control. So these sysfs attributes should not be supported on
IAA device.

Fix this issue by making these sysfs attributes invisible through
is_visible() filter when the device is IAA.

Add description in the ABI documentation to mention that these
attributes are not visible when the device does not support Read Buffer
allocation control.

[1]: https://cdrdv2.intel.com/v1/dl/getContent/721858

Fixes: fde212e44f ("dmaengine: idxd: deprecate token sysfs attributes for read buffers")
Fixes: c52ca47823 ("dmaengine: idxd: add configuration component of driver")
Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20221022074949.11719-1-xiaochen.shen@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2022-12-31 13:32:47 +01:00
Xiaochen Shen
cc743a1d83 dmaengine: idxd: Make max batch size attributes in sysfs invisible for Intel IAA 
[ Upstream commit 91123b37e8 ]

In current code, dev.max_batch_size and wq.max_batch_size attributes in
sysfs are exposed to user to show or update the values.

>From Intel IAA spec [1], Intel IAA does not support batch processing. So
these sysfs attributes should not be supported on IAA device.

Fix this issue by making the attributes of max_batch_size invisible in
sysfs through is_visible() filter when the device is IAA.

Add description in the ABI documentation to mention that the attributes
are not visible when the device does not support batch.

[1]: https://cdrdv2.intel.com/v1/dl/getContent/721858

Fixes: e7184b159d ("dmaengine: idxd: add support for configurable max wq batch size")
Fixes: c52ca47823 ("dmaengine: idxd: add configuration component of driver")
Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20220930201528.18621-3-xiaochen.shen@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2022-12-31 13:32:46 +01:00
Michael Walle
58701a9606 mtd: spi-nor: hide jedec_id sysfs attribute if not present 
[ Upstream commit 7d388551b6 ]

Some non-jedec compliant flashes (like the Everspin flashes) don't have
an ID at all. Hide the attribute in this case.

Fixes: 36ac022862 ("mtd: spi-nor: add initial sysfs support")
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Link: https://lore.kernel.org/r/20220810220654.1297699-2-michael@walle.cc
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2022-12-31 13:32:13 +01:00
Huang Ying
27d676a1c2 memory tier, sysfs: rename attribute "nodes" to "nodelist" 
In sysfs, we use attribute name "cpumap" or "cpus" for cpu mask and
"cpulist" or "cpus_list" for cpu list.  For example, in my system,

 $ cat /sys/devices/system/node/node0/cpumap
 f,ffffffff
 $ cat /sys/devices/system/cpu/cpu2/topology/core_cpus
 0,00100004
 $ cat cat /sys/devices/system/node/node0/cpulist
 0-35
 $ cat /sys/devices/system/cpu/cpu2/topology/core_cpus_list
 2,20

It looks reasonable to use "nodemap" for node mask and "nodelist" for
node list.  So, rename the attribute to follow the naming convention.

Link: https://lkml.kernel.org/r/20221020015122.290097-1-ying.huang@intel.com
Fixes: 9832fb8783 ("mm/demotion: expose memory tier details via sysfs")
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: Wei Xu <weixugc@google.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Bharata B Rao <bharata@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Hesham Almatary <hesham.almatary@huawei.com>
Cc: Jagdish Gediya <jvgediya.oss@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tim Chen <tim.c.chen@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2022-10-28 13:37:22 -07:00
Linus Torvalds
d3cf405133 VFIO updates for v6.1-rc1 
- Prune private items from vfio_pci_core.h to a new internal header,
    fix missed function rename, and refactor vfio-pci interrupt defines.
    (Jason Gunthorpe)
 
  - Create consistent naming and handling of ioctls with a function per
    ioctl for vfio-pci and vfio group handling, use proper type args
    where available. (Jason Gunthorpe)
 
  - Implement a set of low power device feature ioctls allowing userspace
    to make use of power states such as D3cold where supported.
    (Abhishek Sahu)
 
  - Remove device counter on vfio groups, which had restricted the page
    pinning interface to singleton groups to account for limitations in
    the type1 IOMMU backend.  Document usage as limited to emulated IOMMU
    devices, ie. traditional mdev devices where this restriction is
    consistent.  (Jason Gunthorpe)
 
  - Correct function prefix in hisi_acc driver incurred during previous
    refactoring. (Shameer Kolothum)
 
  - Correct typo and remove redundant warning triggers in vfio-fsl driver.
    (Christophe JAILLET)
 
  - Introduce device level DMA dirty tracking uAPI and implementation in
    the mlx5 variant driver (Yishai Hadas & Joao Martins)
 
  - Move much of the vfio_device life cycle management into vfio core,
    simplifying and avoiding duplication across drivers.  This also
    facilitates adding a struct device to vfio_device which begins the
    introduction of device rather than group level user support and fills
    a gap allowing userspace identify devices as vfio capable without
    implicit knowledge of the driver. (Kevin Tian & Yi Liu)
 
  - Split vfio container handling to a separate file, creating a more
    well defined API between the core and container code, masking IOMMU
    backend implementation from the core, allowing for an easier future
    transition to an iommufd based implementation of the same.
    (Jason Gunthorpe)
 
  - Attempt to resolve race accessing the iommu_group for a device
    between vfio releasing DMA ownership and removal of the device from
    the IOMMU driver.  Follow-up with support to allow vfio_group to
    exist with NULL iommu_group pointer to support existing userspace
    use cases of holding the group file open.  (Jason Gunthorpe)
 
  - Fix error code and hi/lo register manipulation issues in the hisi_acc
    variant driver, along with various code cleanups. (Longfang Liu)
 
  - Fix a prior regression in GVT-g group teardown, resulting in
    unreleased resources. (Jason Gunthorpe)
 
  - A significant cleanup and simplification of the mdev interface,
    consolidating much of the open coded per driver sysfs interface
    support into the mdev core. (Christoph Hellwig)
 
  - Simplification of tracking and locking around vfio_groups that
    fall out from previous refactoring. (Jason Gunthorpe)
 
  - Replace trivial open coded f_ops tests with new helper.
    (Alex Williamson)
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Merge tag 'vfio-v6.1-rc1' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - Prune private items from vfio_pci_core.h to a new internal header,
   fix missed function rename, and refactor vfio-pci interrupt defines
   (Jason Gunthorpe)

 - Create consistent naming and handling of ioctls with a function per
   ioctl for vfio-pci and vfio group handling, use proper type args
   where available (Jason Gunthorpe)

 - Implement a set of low power device feature ioctls allowing userspace
   to make use of power states such as D3cold where supported (Abhishek
   Sahu)

 - Remove device counter on vfio groups, which had restricted the page
   pinning interface to singleton groups to account for limitations in
   the type1 IOMMU backend. Document usage as limited to emulated IOMMU
   devices, ie. traditional mdev devices where this restriction is
   consistent (Jason Gunthorpe)

 - Correct function prefix in hisi_acc driver incurred during previous
   refactoring (Shameer Kolothum)

 - Correct typo and remove redundant warning triggers in vfio-fsl driver
   (Christophe JAILLET)

 - Introduce device level DMA dirty tracking uAPI and implementation in
   the mlx5 variant driver (Yishai Hadas & Joao Martins)

 - Move much of the vfio_device life cycle management into vfio core,
   simplifying and avoiding duplication across drivers. This also
   facilitates adding a struct device to vfio_device which begins the
   introduction of device rather than group level user support and fills
   a gap allowing userspace identify devices as vfio capable without
   implicit knowledge of the driver (Kevin Tian & Yi Liu)

 - Split vfio container handling to a separate file, creating a more
   well defined API between the core and container code, masking IOMMU
   backend implementation from the core, allowing for an easier future
   transition to an iommufd based implementation of the same (Jason
   Gunthorpe)

 - Attempt to resolve race accessing the iommu_group for a device
   between vfio releasing DMA ownership and removal of the device from
   the IOMMU driver. Follow-up with support to allow vfio_group to exist
   with NULL iommu_group pointer to support existing userspace use cases
   of holding the group file open (Jason Gunthorpe)

 - Fix error code and hi/lo register manipulation issues in the hisi_acc
   variant driver, along with various code cleanups (Longfang Liu)

 - Fix a prior regression in GVT-g group teardown, resulting in
   unreleased resources (Jason Gunthorpe)

 - A significant cleanup and simplification of the mdev interface,
   consolidating much of the open coded per driver sysfs interface
   support into the mdev core (Christoph Hellwig)

 - Simplification of tracking and locking around vfio_groups that fall
   out from previous refactoring (Jason Gunthorpe)

 - Replace trivial open coded f_ops tests with new helper (Alex
   Williamson)

* tag 'vfio-v6.1-rc1' of https://github.com/awilliam/linux-vfio: (77 commits)
  vfio: More vfio_file_is_group() use cases
  vfio: Make the group FD disassociate from the iommu_group
  vfio: Hold a reference to the iommu_group in kvm for SPAPR
  vfio: Add vfio_file_is_group()
  vfio: Change vfio_group->group_rwsem to a mutex
  vfio: Remove the vfio_group->users and users_comp
  vfio/mdev: add mdev available instance checking to the core
  vfio/mdev: consolidate all the description sysfs into the core code
  vfio/mdev: consolidate all the available_instance sysfs into the core code
  vfio/mdev: consolidate all the name sysfs into the core code
  vfio/mdev: consolidate all the device_api sysfs into the core code
  vfio/mdev: remove mtype_get_parent_dev
  vfio/mdev: remove mdev_parent_dev
  vfio/mdev: unexport mdev_bus_type
  vfio/mdev: remove mdev_from_dev
  vfio/mdev: simplify mdev_type handling
  vfio/mdev: embedd struct mdev_parent in the parent data structure
  vfio/mdev: make mdev.h standalone includable
  drm/i915/gvt: simplify vgpu configuration management
  drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types
  ...
 2022-10-12 14:46:48 -07:00
Linus Torvalds
041bc24d86 pci-v6.1-changes 
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Merge tag 'pci-v6.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Resource management:

   - Distribute spare resources to unconfigured hotplug bridges at
     boot-time (not just when hot-adding such a bridge), which makes
     hot-adding devices to docks work better.

   - Revert to a BAR assignment inherited from firmware only when the
     address is actually reachable via any upstream bridges, which fixes
     some cases where firmware doesn't configure all devices.

   - Add a sysfs interface to resize BARs so this can be done before
     assigning devices to a VM through VFIO.

  Power management:

   - Disable Precision Time Management for all devices on suspend to
     enable lower-power PM state. We previously did this just for Root
     Ports, which isn't enough because downstream devices can still
     generate PTM messages, which cause errors if it's disabled in the
     Root Port.

   - Save and restore the ASPM L1 PM Substates configuration for
     suspend/ resume. Previously this configuration was lost, so L1.x
     states likely stopped working after resume.

   - Check whether the L1 PM Substates Capability exists. If it didn't
     exist, we previously read junk and tried to configure L1 Substates
     based on that.

   - Fix the LTR_L1.2_THRESHOLD computation, which previously set a
     threshold for entering L1.2 that was too low in some cases.

   - Reduce the delay after transitions to or from D3cold by using
     usleep_range() rather than msleep(), which often slept for ~19ms
     instead of the 10ms normally required. The spec says 10ms is
     enough, but it's possible we could trip over devices that need a
     little more.

  Error handling:

   - Work around a BIOS bug that caused Intel Root Ports to advertise a
     Root Port Programmed I/O (RP PIO) log size of zero, which caused
     annoying warnings and prevented the kernel from dumping log
     registers for DPC errors.

  Qualcomm PCIe controller driver:

   - Add support for SC8280XP and SA8540P host controllers and SM8450
     endpoint controller.

   - Disable Master AXI clock on endpoint controllers to save power when
     link is idle or in L1.x.

   - Expose link state transition counts via debugfs to help debug
     issues with low-power states.

   - Add auto-loading module support.

  Synopsys DesignWare PCIe controller driver:

   - Remove a dependency on ZONE_DMA32 by allocating the MSI target page
     differently. There's more work to do related to eDMA controllers,
     so it's not completely settled"

* tag 'pci-v6.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (71 commits)
  PCI: qcom-ep: Check platform_get_resource_byname() return value
  PCI: qcom-ep: Add support for SM8450 SoC
  dt-bindings: PCI: qcom-ep: Add support for SM8450 SoC
  dt-bindings: PCI: qcom-ep: Define clocks per platform
  PCI: qcom-ep: Make PERST separation optional
  dt-bindings: PCI: qcom-ep: Make PERST separation optional
  PCI: qcom-ep: Disable Master AXI Clock when there is no PCIe traffic
  PCI: Expose PCIe Resizable BAR support via sysfs
  PCI/ASPM: Correct LTR_L1.2_THRESHOLD computation
  PCI/ASPM: Ignore L1 PM Substates if device lacks capability
  PCI/ASPM: Factor out L1 PM Substates configuration
  PCI: qcom-ep: Gate Master AXI clock to MHI bus during L1SS
  PCI: qcom-ep: Expose link transition counts via debugfs
  PCI: qcom-ep: Disable IRQs during driver remove
  PCI/ASPM: Save L1 PM Substates Capability for suspend/resume
  PCI/ASPM: Refactor L1 PM Substates Control Register programming
  PCI: qcom-ep: Make use of the cached dev pointer
  PCI: qcom-ep: Rely on the clocks supplied by devicetree
  PCI: qcom-ep: Add kernel-doc for qcom_pcie_ep structure
  phy: freescale: imx8m-pcie: Fix the wrong order of phy_init() and phy_power_on()
  ...
 2022-10-11 11:08:18 -07:00
Linus Torvalds
5d170fe435 f2fs-for-6.1-rc1 
This round looks fairly small comparing to the previous updates which includes
 mostly minor bug fixes. Nevertheless, as we've still interested in improving
 the stability, Chao added some debugging methods to diagnoze subtle runtime
 inconsistency problem.
 
 Enhancement
  - store all the corruption or failure reasons in superblock
  - detect meta inode, summary info, and block address inconsistency
  - increase the limit for reserve_root for low-end devices
  - add the number of compressed IO in iostat
 
 Bug fix
  - DIO write fix for zoned devices
  - do out-of-place writes for cold files
  - fix some stat updates (FS_CP_DATA_IO, dirty page count)
  - fix race condition on setting FI_NO_EXTENT flag
  - fix data races when freezing super
  - fix wrong continue condition check in GC
  - do not allow ATGC for LFS mode
 
 In addition, there're some code enhancement and clean-ups as usual.
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Merge tag 'f2fs-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "This round looks fairly small comparing to the previous updates and
  includes mostly minor bug fixes. Nevertheless, as we've still
  interested in improving the stability, Chao added some debugging
  methods to diagnoze subtle runtime inconsistency problem.

  Enhancements:
   - store all the corruption or failure reasons in superblock
   - detect meta inode, summary info, and block address inconsistency
   - increase the limit for reserve_root for low-end devices
   - add the number of compressed IO in iostat

  Bug fixes:
   - DIO write fix for zoned devices
   - do out-of-place writes for cold files
   - fix some stat updates (FS_CP_DATA_IO, dirty page count)
   - fix race condition on setting FI_NO_EXTENT flag
   - fix data races when freezing super
   - fix wrong continue condition check in GC
   - do not allow ATGC for LFS mode

  In addition, there're some code enhancement and clean-ups as usual"

* tag 'f2fs-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (32 commits)
  f2fs: change to use atomic_t type form sbi.atomic_files
  f2fs: account swapfile inodes
  f2fs: allow direct read for zoned device
  f2fs: support recording errors into superblock
  f2fs: support recording stop_checkpoint reason into super_block
  f2fs: remove the unnecessary check in f2fs_xattr_fiemap
  f2fs: introduce cp_status sysfs entry
  f2fs: fix to detect corrupted meta ino
  f2fs: fix to account FS_CP_DATA_IO correctly
  f2fs: code clean and fix a type error
  f2fs: add "c_len" into trace_f2fs_update_extent_tree_range for compressed file
  f2fs: fix to do sanity check on summary info
  f2fs: port to vfs{g,u}id_t and associated helpers
  f2fs: fix to do sanity check on destination blkaddr during recovery
  f2fs: let FI_OPU_WRITE override FADVISE_COLD_BIT
  f2fs: fix race condition on setting FI_NO_EXTENT flag
  f2fs: remove redundant check in f2fs_sanity_check_cluster
  f2fs: add static init_idisk_time function to reduce the code
  f2fs: fix typo
  f2fs: fix wrong dirty page count when race between mmap and fallocate.
  ...
 2022-10-10 20:28:41 -07:00
Linus Torvalds
27bc50fc90 - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 
linux-next for a couple of months without, to my knowledge, any negative
   reports (or any positive ones, come to that).
 
 - Also the Maple Tree from Liam R.  Howlett.  An overlapping range-based
   tree for vmas.  It it apparently slight more efficient in its own right,
   but is mainly targeted at enabling work to reduce mmap_lock contention.
 
   Liam has identified a number of other tree users in the kernel which
   could be beneficially onverted to mapletrees.
 
   Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat
   (https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com).
   This has yet to be addressed due to Liam's unfortunately timed
   vacation.  He is now back and we'll get this fixed up.
 
 - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer.  It uses
   clang-generated instrumentation to detect used-unintialized bugs down to
   the single bit level.
 
   KMSAN keeps finding bugs.  New ones, as well as the legacy ones.
 
 - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of
   memory into THPs.
 
 - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to support
   file/shmem-backed pages.
 
 - userfaultfd updates from Axel Rasmussen
 
 - zsmalloc cleanups from Alexey Romanov
 
 - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and memory-failure
 
 - Huang Ying adds enhancements to NUMA balancing memory tiering mode's
   page promotion, with a new way of detecting hot pages.
 
 - memcg updates from Shakeel Butt: charging optimizations and reduced
   memory consumption.
 
 - memcg cleanups from Kairui Song.
 
 - memcg fixes and cleanups from Johannes Weiner.
 
 - Vishal Moola provides more folio conversions
 
 - Zhang Yi removed ll_rw_block() :(
 
 - migration enhancements from Peter Xu
 
 - migration error-path bugfixes from Huang Ying
 
 - Aneesh Kumar added ability for a device driver to alter the memory
   tiering promotion paths.  For optimizations by PMEM drivers, DRM
   drivers, etc.
 
 - vma merging improvements from Jakub Matěn.
 
 - NUMA hinting cleanups from David Hildenbrand.
 
 - xu xin added aditional userspace visibility into KSM merging activity.
 
 - THP & KSM code consolidation from Qi Zheng.
 
 - more folio work from Matthew Wilcox.
 
 - KASAN updates from Andrey Konovalov.
 
 - DAMON cleanups from Kaixu Xia.
 
 - DAMON work from SeongJae Park: fixes, cleanups.
 
 - hugetlb sysfs cleanups from Muchun Song.
 
 - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core.
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Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
   linux-next for a couple of months without, to my knowledge, any
   negative reports (or any positive ones, come to that).

 - Also the Maple Tree from Liam Howlett. An overlapping range-based
   tree for vmas. It it apparently slightly more efficient in its own
   right, but is mainly targeted at enabling work to reduce mmap_lock
   contention.

   Liam has identified a number of other tree users in the kernel which
   could be beneficially onverted to mapletrees.

   Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat
   at [1]. This has yet to be addressed due to Liam's unfortunately
   timed vacation. He is now back and we'll get this fixed up.

 - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses
   clang-generated instrumentation to detect used-unintialized bugs down
   to the single bit level.

   KMSAN keeps finding bugs. New ones, as well as the legacy ones.

 - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of
   memory into THPs.

 - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to
   support file/shmem-backed pages.

 - userfaultfd updates from Axel Rasmussen

 - zsmalloc cleanups from Alexey Romanov

 - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and
   memory-failure

 - Huang Ying adds enhancements to NUMA balancing memory tiering mode's
   page promotion, with a new way of detecting hot pages.

 - memcg updates from Shakeel Butt: charging optimizations and reduced
   memory consumption.

 - memcg cleanups from Kairui Song.

 - memcg fixes and cleanups from Johannes Weiner.

 - Vishal Moola provides more folio conversions

 - Zhang Yi removed ll_rw_block() :(

 - migration enhancements from Peter Xu

 - migration error-path bugfixes from Huang Ying

 - Aneesh Kumar added ability for a device driver to alter the memory
   tiering promotion paths. For optimizations by PMEM drivers, DRM
   drivers, etc.

 - vma merging improvements from Jakub Matěn.

 - NUMA hinting cleanups from David Hildenbrand.

 - xu xin added aditional userspace visibility into KSM merging
   activity.

 - THP & KSM code consolidation from Qi Zheng.

 - more folio work from Matthew Wilcox.

 - KASAN updates from Andrey Konovalov.

 - DAMON cleanups from Kaixu Xia.

 - DAMON work from SeongJae Park: fixes, cleanups.

 - hugetlb sysfs cleanups from Muchun Song.

 - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core.

Link: https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com [1]

* tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (555 commits)
  hugetlb: allocate vma lock for all sharable vmas
  hugetlb: take hugetlb vma_lock when clearing vma_lock->vma pointer
  hugetlb: fix vma lock handling during split vma and range unmapping
  mglru: mm/vmscan.c: fix imprecise comments
  mm/mglru: don't sync disk for each aging cycle
  mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol
  mm: memcontrol: use do_memsw_account() in a few more places
  mm: memcontrol: deprecate swapaccounting=0 mode
  mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled
  mm/secretmem: remove reduntant return value
  mm/hugetlb: add available_huge_pages() func
  mm: remove unused inline functions from include/linux/mm_inline.h
  selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memory
  selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmd
  selftests/vm: add thp collapse shmem testing
  selftests/vm: add thp collapse file and tmpfs testing
  selftests/vm: modularize thp collapse memory operations
  selftests/vm: dedup THP helpers
  mm/khugepaged: add tracepoint to hpage_collapse_scan_file()
  mm/madvise: add file and shmem support to MADV_COLLAPSE
  ...
 2022-10-10 17:53:04 -07:00
Linus Torvalds
4de65c5830 Livepatching changes for 6.1 
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Merge tag 'livepatching-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching

Pull livepatching updates from Petr Mladek:

 - Fix race between fork and livepatch transition revert

 - Add sysfs entry that shows "patched" state for each object (module)
   that can be livepatched by the given livepatch

 - Some clean up

* tag 'livepatching-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  selftests/livepatch: add sysfs test
  livepatch: add sysfs entry "patched" for each klp_object
  selftests/livepatch: normalize sysctl error message
  livepatch: Add a missing newline character in klp_module_coming()
  livepatch: fix race between fork and KLP transition
 2022-10-10 11:36:19 -07:00
Linus Torvalds
a09476668e Char/Misc and other driver changes for 6.1-rc1 
Here is the large set of char/misc and other small driver subsystem
 changes for 6.1-rc1.  Loads of different things in here:
   - IIO driver updates, additions, and changes.  Probably the largest
     part of the diffstat
   - habanalabs driver update with support for new hardware and features,
     the second largest part of the diff.
   - fpga subsystem driver updates and additions
   - mhi subsystem updates
   - Coresight driver updates
   - gnss subsystem updates
   - extcon driver updates
   - icc subsystem updates
   - fsi subsystem updates
   - nvmem subsystem and driver updates
   - misc driver updates
   - speakup driver additions for new features
   - lots of tiny driver updates and cleanups
 
 All of these have been in the linux-next tree for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver updates from Greg KH:
 "Here is the large set of char/misc and other small driver subsystem
  changes for 6.1-rc1. Loads of different things in here:

   - IIO driver updates, additions, and changes. Probably the largest
     part of the diffstat

   - habanalabs driver update with support for new hardware and
     features, the second largest part of the diff.

   - fpga subsystem driver updates and additions

   - mhi subsystem updates

   - Coresight driver updates

   - gnss subsystem updates

   - extcon driver updates

   - icc subsystem updates

   - fsi subsystem updates

   - nvmem subsystem and driver updates

   - misc driver updates

   - speakup driver additions for new features

   - lots of tiny driver updates and cleanups

  All of these have been in the linux-next tree for a while with no
  reported issues"

* tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (411 commits)
  w1: Split memcpy() of struct cn_msg flexible array
  spmi: pmic-arb: increase SPMI transaction timeout delay
  spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes
  spmi: pmic-arb: correct duplicate APID to PPID mapping logic
  spmi: pmic-arb: add support to dispatch interrupt based on IRQ status
  spmi: pmic-arb: check apid against limits before calling irq handler
  spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq
  spmi: pmic-arb: handle spurious interrupt
  spmi: pmic-arb: add a print in cleanup_irq
  drivers: spmi: Directly use ida_alloc()/free()
  MAINTAINERS: add TI ECAP driver info
  counter: ti-ecap-capture: capture driver support for ECAP
  Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items
  dt-bindings: counter: add ti,am62-ecap-capture.yaml
  counter: Introduce the COUNTER_COMP_ARRAY component type
  counter: Consolidate Counter extension sysfs attribute creation
  counter: Introduce the Count capture component
  counter: 104-quad-8: Add Signal polarity component
  counter: Introduce the Signal polarity component
  counter: interrupt-cnt: Implement watch_validate callback
  ...
 2022-10-08 08:56:37 -07:00
Linus Torvalds
d3dcbe24a0 USB/Thunderbolt changes for 6.1-rc1 
Here is the big set of USB and Thunderbolt driver changes for 6.1-rc1.
 
 Nothing major in here, lots of little things with new devices supported
 and updates for a few drivers.  Highlights include:
 	- thunderbolt/USB4 devices supported a bit better than before,
 	  and some new ids to enable new hardware devices
 	- USB gadget uvc updates for newer video formats and better v4l
 	  integration (the v4l portions were acked by those maintainers)
 	- typec updates for tiny issues and more typec drivers for new
 	  chips.
 	- xhci tiny updates for minor issues
 	- big usb-serial ftdi_sio driver update to handle new devices
 	  better
 	- lots of tiny dwc3 fixes and updates for the IP block that is
 	  showing up everywhere these days
 	- dts updates for new devices being supported
 	- other tiny janitorial and cleanups fixes for lots of different
 	  USB drivers.  Full details are in the shortlog.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver changes for 6.1-rc1.

  Nothing major in here, lots of little things with new devices
  supported and updates for a few drivers. Highlights include:

   - thunderbolt/USB4 devices supported a bit better than before, and
     some new ids to enable new hardware devices

   - USB gadget uvc updates for newer video formats and better v4l
     integration (the v4l portions were acked by those maintainers)

   - typec updates for tiny issues and more typec drivers for new chips.

   - xhci tiny updates for minor issues

   - big usb-serial ftdi_sio driver update to handle new devices better

   - lots of tiny dwc3 fixes and updates for the IP block that is
     showing up everywhere these days

   - dts updates for new devices being supported

   - other tiny janitorial and cleanups fixes for lots of different USB
     drivers. Full details are in the shortlog.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (169 commits)
  usb: gadget: uvc: don't put item still in use
  usb: gadget: uvc: Fix argument to sizeof() in uvc_register_video()
  usb: host: ehci-exynos: switch to using gpiod API
  Revert "usb: dwc3: Don't switch OTG -> peripheral if extcon is present"
  Revert "USB: fixup for merge issue with "usb: dwc3: Don't switch OTG -> peripheral if extcon is present""
  dt-bindings: usb: Convert FOTG210 to dt schema
  usb: mtu3: fix failed runtime suspend in host only mode
  USB: omap_udc: Fix spelling mistake: "tranceiver_ctrl" -> "transceiver_ctrl"
  usb: typec: ucsi_ccg: Disable UCSI ALT support on Tegra
  usb: typec: Replace custom implementation of device_match_fwnode()
  usb: typec: ucsi: Don't warn on probe deferral
  usb: add quirks for Lenovo OneLink+ Dock
  MAINTAINERS: switch dwc3 to Thinh
  usb: idmouse: fix an uninit-value in idmouse_open
  USB: PHY: JZ4770: Switch to use dev_err_probe() helper
  usb: phy: generic: Switch to use dev_err_probe() helper
  usb: ulpi: use DEFINE_SHOW_ATTRIBUTE to simplify ulpi_regs
  usb: cdns3: remove dead code
  usb: cdc-wdm: Use skb_put_data() instead of skb_put/memcpy pair
  usb: musb: sunxi: Switch to use dev_err_probe() helper
  ...
 2022-10-07 16:48:26 -07:00
Linus Torvalds
416a2f4f91 dmaengine updates for v6.1-rc1 
New Support:
  - AngeloGioacchino Del Regno added support for MT6795 SoC dma controller
  - Christian Marangi updated qcom-adm controller binding to yaml
  - Geert Uytterhoeven added yaml binding for Renesas r8a779g0 dma controller
  - Luca Weiss added support for Qualcomm SM6350 GPI dma controller
 
 Updates:
  - Amelie Delaunay provided STM32 DMA-MDMA chaining support
  - Andy Shevchenko updated hsu driver to use managed resources
  - Dave Jiang & Jerry Snitselaar provided usual round of idxd driver updates
  - Janne Grunau & Martin Povišer updated apple dma driver for iommu and pd
    properties and removed use of devres for irqs
  - Swati Agarwal added device_synchronize support for Xilinx zynqmp driver
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Merge tag 'dmaengine-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine updates from Vinod Koul:
 "New Support:

   - MT6795 SoC dma controller (AngeloGioacchino Del Regno)

   - qcom-adm controller yaml binding (Christian Marangi)

   - Renesas r8a779g0 dma controller yaml binding (Geert Uytterhoeven)

   - Qualcomm SM6350 GPI dma controller (Luca Weiss)

  Updates:

   - STM32 DMA-MDMA chaining support (Amelie Delaunay)

   - make hsu driver use managed resources (Andy Shevchenko)

   - the usual round of idxd driver updates (Dave Jiang & Jerry
     Snitselaar)

   - apple dma driver iommu and pd properties and remove use
     of devres for irqs (Janne Grunau & Martin Povišer)

   - device_synchronize support for Xilinx zynqmp driver (Swati
     Agarwal)"

* tag 'dmaengine-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (60 commits)
  dmaengine: ioat: remove unused declarations in dma.h
  dmaengine: ti: k3-udma: Respond TX done if DMA_PREP_INTERRUPT is not requested
  dmaengine: zynqmp_dma: Add device_synchronize support
  dt-bindings: dma: add additional pbus reset to qcom,adm
  dt-bindings: dma: rework qcom,adm Documentation to yaml schema
  dt-bindings: dma: apple,admac: Add iommus and power-domains properties
  dmaengine: dw-edma: Remove runtime PM support
  dmaengine: idxd: add configuration for concurrent batch descriptor processing
  dmaengine: idxd: add configuration for concurrent work descriptor processing
  dmaengine: idxd: add WQ operation cap restriction support
  dmanegine: idxd: reformat opcap output to match bitmap_parse() input
  dmaengine: idxd: convert ats_dis to a wq flag
  dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup()
  dmaengine: qcom-adm: fix wrong calling convention for prep_slave_sg
  dmaengine: qcom-adm: fix wrong sizeof config in slave_config
  dmaengine: ti: k3-psil: add additional TX threads for j721e
  dmaengine: ti: k3-psil: add additional TX threads for j7200
  dmaengine: apple-admac: Trigger shared reset
  dmaengine: apple-admac: Do not use devres for IRQs
  dmaengine: ti: edma: Remove some unused functions
  ...
 2022-10-07 15:56:34 -07:00
Linus Torvalds
62e6e5940c SCSI misc on 20221007 
Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr,
 mpt3sas, target); the biggest change (from my biased viewpoint) being
 that the mpi3mr now attached to the SAS transport class, making it the
 first fusion type device to do so.  Beyond the usual bug fixing and
 security class reworks, there aren't a huge number of core changes.
 
 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 SCSI updates from James Bottomley:
 "Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr,
  mpt3sas, target). The biggest change (from my biased viewpoint) being
  that the mpi3mr now attached to the SAS transport class, making it the
  first fusion type device to do so.

  Beyond the usual bug fixing and security class reworks, there aren't a
  huge number of core changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (141 commits)
  scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()
  scsi: mpi3mr: Remove unnecessary cast
  scsi: stex: Properly zero out the passthrough command structure
  scsi: mpi3mr: Update driver version to 8.2.0.3.0
  scsi: mpi3mr: Fix scheduling while atomic type bug
  scsi: mpi3mr: Scan the devices during resume time
  scsi: mpi3mr: Free enclosure objects during driver unload
  scsi: mpi3mr: Handle 0xF003 Fault Code
  scsi: mpi3mr: Graceful handling of surprise removal of PCIe HBA
  scsi: mpi3mr: Schedule IRQ kthreads only on non-RT kernels
  scsi: mpi3mr: Support new power management framework
  scsi: mpi3mr: Update mpi3 header files
  scsi: mpt3sas: Revert "scsi: mpt3sas: Fix ioc->base_readl() use"
  scsi: mpt3sas: Revert "scsi: mpt3sas: Fix writel() use"
  scsi: wd33c93: Remove dead code related to the long-gone config WD33C93_PIO
  scsi: core: Add I/O timeout count for SCSI device
  scsi: qedf: Populate sysfs attributes for vport
  scsi: pm8001: Replace one-element array with flexible-array member
  scsi: 3w-xxxx: Replace one-element array with flexible-array member
  scsi: hptiop: Replace one-element array with flexible-array member in struct hpt_iop_request_ioctl_command()
  ...
 2022-10-07 12:33:18 -07:00
Linus Torvalds
ff6862c23d ARM: driver updates for 6.1 
The drivers branch for 6.1 is a bit larger than for most releases.  Most
 of the changes come from SoC maintainers for the drivers/soc subsystem:
 
  - A new driver for error handling on the NVIDIA Tegra
    'control backbone' bus.
 
  - A new driver for Qualcomm LLCC/DDR bandwidth measurement
 
  - New Rockchip rv1126 and rk3588 power domain drivers
 
  - DT binding updates for memory controllers, older Rockchip
    SoCs, various Mediatek devices, Qualcomm SCM firmware
 
  - Minor updates to Hisilicon LPC bus, the Allwinner SRAM
    driver, the Apple rtkit firmware driver, Tegra firmware
 
  - Minor updates for SoC drivers (Samsung, Mediatek, Renesas,
    Tegra, Qualcomm, Broadcom, NXP, ...)
 
 There are also some separate subsystem with downstream maintainers that
 merge updates this way:
 
  - Various updates and new drivers in the memory controller
    subsystem for Mediatek and Broadcom SoCs
 
  - Small set of changes in preparation to add support for FF-A
    v1.1 specification later, in the Arm FF-A firmware subsystem
 
  - debugfs support in the PSCI firmware subsystem
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Merge tag 'arm-drivers-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM driver updates from Arnd Bergmann:
 "The drivers branch for 6.1 is a bit larger than for most releases.

  Most of the changes come from SoC maintainers for the drivers/soc
  subsystem:

   - A new driver for error handling on the NVIDIA Tegra 'control
     backbone' bus.

   - A new driver for Qualcomm LLCC/DDR bandwidth measurement

   - New Rockchip rv1126 and rk3588 power domain drivers

   - DT binding updates for memory controllers, older Rockchip SoCs,
     various Mediatek devices, Qualcomm SCM firmware

   - Minor updates to Hisilicon LPC bus, the Allwinner SRAM driver, the
     Apple rtkit firmware driver, Tegra firmware

   - Minor updates for SoC drivers (Samsung, Mediatek, Renesas, Tegra,
     Qualcomm, Broadcom, NXP, ...)

  There are also some separate subsystem with downstream maintainers
  that merge updates this way:

   - Various updates and new drivers in the memory controller subsystem
     for Mediatek and Broadcom SoCs

   - Small set of changes in preparation to add support for FF-A v1.1
     specification later, in the Arm FF-A firmware subsystem

   - debugfs support in the PSCI firmware subsystem"

* tag 'arm-drivers-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (149 commits)
  ARM: remove check for CONFIG_DEBUG_LL_SER3
  firmware/psci: Add debugfs support to ease debugging
  firmware/psci: Print a warning if PSCI doesn't accept PC mode
  dt-bindings: memory: snps,dw-umctl2-ddrc: Extend schema with IRQs/resets/clocks props
  dt-bindings: memory: snps,dw-umctl2-ddrc: Replace opencoded numbers with macros
  dt-bindings: memory: snps,dw-umctl2-ddrc: Use more descriptive device name
  dt-bindings: memory: synopsys,ddrc-ecc: Detach Zynq DDRC controller support
  soc: sunxi: sram: Add support for the D1 system control
  soc: sunxi: sram: Export the LDO control register
  soc: sunxi: sram: Save a pointer to the OF match data
  soc: sunxi: sram: Return void from the release function
  soc: apple: rtkit: Add apple_rtkit_poll
  soc: imx: add i.MX93 media blk ctrl driver
  soc: imx: add i.MX93 SRC power domain driver
  soc: imx: imx8m-blk-ctrl: Use genpd_xlate_onecell
  soc: imx: imx8mp-blk-ctrl: handle PCIe PHY resets
  soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl
  soc: imx: add i.MX8MP HDMI blk ctrl HDCP/HRV_MWR
  soc: imx: add icc paths for i.MX8MP hsio/hdmi blk ctrl
  soc: imx: add icc paths for i.MX8MP media blk ctrl
  ...
 2022-10-06 11:04:57 -07:00
Linus Torvalds
7fb68b6c82 platform-drivers-x86 for v6.1-1 
Highlights:
  -  AMD Platform Management Framework (PMF) driver with AMT and QnQF support
  -  AMD PMC: Improved logging for debugging s2idle issues
  -  Big refactor of the ACPI/x86 backlight handling, ensuring that we only
     register 1 /sys/class/backlight device per LCD panel
  -  Microsoft Surface:
     -  Surface Laptop Go 2 support
     -  Surface Pro 8 HID sensor support
  -  Asus WMI:
     -  Lots of cleanups
     -  Support for TUF RGB keyboard backlight control
     -  Add support for ROG X13 tablet mode
  -  Siemens Simatic: IPC227G and IPC427G support
  -  Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support
  -  tools/power/x86/intel-speed-select: Various improvements
  -  Various cleanups
  -  Various small bugfixes
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI:
  -  video: Change disable_backlight_sysfs_if quirks to acpi_backlight=native
  -  s2idle: Add a new ->check() callback for platform_s2idle_ops
  -  video: Fix indentation of video_detect_dmi_table[] entries
  -  video: Drop NL5x?U, PF4NU1F and PF5?U?? acpi_backlight=native quirks
  -  video: Drop "Samsung X360" acpi_backlight=native quirk
  -  video: Remove acpi_video_set_dmi_backlight_type()
  -  video: Add Apple GMUX brightness control detection
  -  video: Add Nvidia WMI EC brightness control detection (v3)
  -  video: Refactor acpi_video_get_backlight_type() a bit
  -  video: Remove code to unregister acpi_video backlight when a native backlight registers
  -  video: Make backlight class device registration a separate step (v2)
  -  video: Simplify acpi_video_unregister_backlight()
  -  video: Remove acpi_video_bus from list before tearing it down
  -  video: Drop backlight_device_get_by_type() call from acpi_video_get_backlight_type()
  -  video: Add acpi_video_backlight_use_native() helper
 
 acer-wmi:
  -  Move backlight DMI quirks to acpi/video_detect.c
  -  Acer Aspire One AOD270/Packard Bell Dot keymap fixes
 
 apple-gmux:
  -  Stop calling acpi/video.h functions
 
 asus-wmi:
  -  Expand support of GPU fan to read RPM and label
  -  Make kbd_rgb_mode_groups static
  -  Move acpi_backlight=native quirks to ACPI video_detect.c
  -  Move acpi_backlight=vendor quirks to ACPI video_detect.c
  -  Drop DMI chassis-type check from backlight handling
  -  Increase FAN_CURVE_BUF_LEN to 32
  -  Fix the name of the mic-mute LED classdev
  -  Implement TUF laptop keyboard power states
  -  Implement TUF laptop keyboard LED modes
  -  Support the GPU fan on TUF laptops
  -  Modify behaviour of Fn+F5 fan key
  -  Update tablet_mode_sw module-param help text
  -  Simplify tablet-mode-switch handling
  -  Simplify tablet-mode-switch probing
  -  Add support for ROG X13 tablet mode
  -  Adjust tablet/lidflip handling to use enum
  -  Support the hardware GPU MUX on some laptops
  -  Simplify some of the *_check_present() helpers
  -  Refactor panel_od attribute
  -  Refactor egpu_enable attribute
  -  Refactor disable_gpu attribute
  -  Document the panel_od sysfs attribute
  -  Document the egpu_enable sysfs attribute
  -  Document the dgpu_disable sysfs attribute
  -  Use kobj_to_dev()
  -  Convert all attr-show to use sysfs_emit
 
 compal-laptop:
  -  Get rid of a few forward declarations
 
 dell-privacy:
  -  convert to use dev_groups
 
 dell-smbios-base:
  -  Use sysfs_emit()
 
 dell-wmi:
  -  Add WMI event 0x0012 0x0003 to the list
 
 docs:
  -  ABI: charge_control_end_threshold may not support all values
 
 drivers/platform:
  -  toshiba_acpi: Call HCI_PANEL_POWER_ON on resume on some models
 
 drm/amdgpu:
  -  Register ACPI video backlight when skipping amdgpu backlight registration
  -  Don't register backlight when another backlight should be used (v3)
 
 drm/i915:
  -  Call acpi_video_register_backlight() (v3)
  -  Don't register backlight when another backlight should be used (v2)
 
 drm/nouveau:
  -  Register ACPI video backlight when nv_backlight registration fails (v2)
  -  Don't register backlight when another backlight should be used (v2)
 
 drm/radeon:
  -  Register ACPI video backlight when skipping radeon backlight registration
  -  Don't register backlight when another backlight should be used (v3)
 
 drm/todo:
  -  Add entry about dealing with brightness control on devices with > 1 panel
 
 gpio-f7188x:
  -  use unique labels for banks/chips
  -  Add GPIO support for Nuvoton NCT6116
  -  add a prefix to macros to keep gpio namespace clean
  -  switch over to using pr_fmt
 
 hp-wmi:
  -  Support touchpad on/off
  -  Setting thermal profile fails with 0x06
 
 int3472/discrete:
  -  Drop a forward declaration
 
 intel-uncore-freq:
  -  Use sysfs_emit() to instead of scnprintf()
 
 intel_cht_int33fe:
  -  Fix comment according to the code flow
 
 leds:
  -  simatic-ipc-leds-gpio: Make simatic_ipc_led_gpio_table static
  -  simatic-ipc-leds-gpio: add new model 227G
 
 move from strlcpy with unused retval to strscpy:
  - move from strlcpy with unused retval to strscpy
 
 msi-laptop:
  -  Change DMI match / alias strings to fix module autoloading
  -  Add msi_scm_disable_hw_fn_handling() helper
  -  Add msi_scm_model_exit() helper
  -  Fix resource cleanup
  -  Simplify ec_delay handling
  -  Fix old-ec check for backlight registering
  -  Drop MSI_DRIVER_VERSION
  -  Use MODULE_DEVICE_TABLE()
 
 nvidia-wmi-ec-backlight:
  -  Use acpi_video_get_backlight_type()
  -  Move fw interface definitions to a header (v2)
 
 p2sb:
  -  Fix UAF when caller uses resource name
 
 platform/mellanox:
  -  mlxreg-lc: Make error handling flow consistent
  -  Remove redundant 'NULL' check
  -  Remove unnecessary code
  -  mlxreg-lc: Fix locking issue
  -  mlxreg-lc: Fix coverity warning
 
 platform/surface:
  -  Split memcpy() of struct ssam_event flexible array
  -  aggregator_registry: Add HID devices for sensors and UCSI client to SP8
  -  aggregator_registry: Rename HID device nodes based on new findings
  -  aggregator_registry: Rename HID device nodes based on their function
  -  aggregator_registry: Add support for Surface Laptop Go 2
 
 platform/x86:
  - use PLATFORM_DEVID_NONE instead of -1
 
 platform/x86/amd:
  -  pmc: Dump idle mask during "check" stage instead
  -  pmc: remove CONFIG_DEBUG_FS checks
  -  pmc: Fix build without debugfs
  -  pmc: Add sysfs files for SMU
  -  pmc: Add an extra STB message for checking s2idle entry
  -  pmc: Always write to the STB
  -  pmc: Add defines for STB events
 
 platform/x86/amd/pmf:
  -  Remove unused power_delta instances
  -  install notify handler after acpi init
  -  Add sysfs to toggle CnQF
  -  Add support for CnQF
  -  Fix clang unused variable warning
  -  Fix undefined reference to platform_profile
  -  Force load driver on older supported platforms
  -  Handle AMT and CQL events for Auto mode
  -  Add support for Auto mode feature
  -  Get performance metrics from PMFW
  -  Add fan control support
  -  Add heartbeat signal support
  -  Add debugfs information
  -  Add support SPS PMF feature
  -  Add support for PMF APCI layer
  -  Add support for PMF core layer
  -  Add ABI doc for AMD PMF
  -  Add AMD PMF driver entry
 
 platform/x86/intel/wmi:
  -  thunderbolt: Use dev_groups callback
 
 pmc_atom:
  -  Amend comment style and grammar
  -  Make terminator entry uniform
  -  Improve quirk message to be less cryptic
  -  Fix SLP_TYPx bitfield mask
 
 samsung-laptop:
  -  Move acpi_backlight=[vendor|native] quirks to ACPI video_detect.c
 
 simatic-ipc:
  -  add new model 427G
  -  enable watchdog for 227G
 
 thinkpad_acpi:
  -  Explicitly set to balanced mode on startup
 
 tools/power/x86/intel-speed-select:
  -  Release v1.13
  -  Optimize CPU initialization
  -  Utilize cpu_map to get physical id
  -  Remove unused struct clos_config fields
  -  Enforce isst_id value
  -  Do not export get_physical_id
  -  Introduce is_cpu_in_power_domain helper
  -  Cleanup get_physical_id usage
  -  Convert more function to use isst_id
  -  Add pkg and die in isst_id
  -  Introduce struct isst_id
  -  Remove unused core_mask array
  -  Remove dead code
  -  Fix cpu count for TDP level display
 
 toshiba_acpi:
  -  change turn_on_panel_on_resume to static
  -  Remove duplicate include
  -  Set correct parent for input device.
  -  Add fan RPM reading (hwmon interface)
  -  Add fan RPM reading (internals)
  -  Stop using acpi_video_set_dmi_backlight_type()
  -  Fix ECO LED control on Toshiba Z830
  - Battery charge mode in toshiba_acpi (internals)
  - Battery charge mode in toshiba_acpi (sysfs)
 
 wmi:
  -  Drop forward declaration of static functions
  -  Allow duplicate GUIDs for drivers that use struct wmi_driver
 
 x86-android-tablets:
  -  Fix broken touchscreen on Chuwi Hi8 with Windows BIOS
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Merge tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:

 - AMD Platform Management Framework (PMF) driver with AMT and QnQF
   support

 - AMD PMC: Improved logging for debugging s2idle issues

 - Big refactor of the ACPI/x86 backlight handling, ensuring that we
   only register 1 /sys/class/backlight device per LCD panel

 - Microsoft Surface:
    - Surface Laptop Go 2 support
    - Surface Pro 8 HID sensor support

 - Asus WMI:
    - Lots of cleanups
    - Support for TUF RGB keyboard backlight control
    - Add support for ROG X13 tablet mode

 - Siemens Simatic: IPC227G and IPC427G support

 - Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support

 - tools/power/x86/intel-speed-select: Various improvements

 - Various cleanups

 - Various small bugfixes

* tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (153 commits)
  platform/x86: use PLATFORM_DEVID_NONE instead of -1
  platform/x86/amd: pmc: Dump idle mask during "check" stage instead
  platform/x86/intel/wmi: thunderbolt: Use dev_groups callback
  platform/x86/amd: pmc: remove CONFIG_DEBUG_FS checks
  platform/surface: Split memcpy() of struct ssam_event flexible array
  platform/x86: compal-laptop: Get rid of a few forward declarations
  platform/x86: intel-uncore-freq: Use sysfs_emit() to instead of scnprintf()
  platform/x86: dell-smbios-base: Use sysfs_emit()
  platform/x86/amd/pmf: Remove unused power_delta instances
  platform/x86/amd/pmf: install notify handler after acpi init
  Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF
  platform/x86/amd/pmf: Add sysfs to toggle CnQF
  platform/x86/amd/pmf: Add support for CnQF
  platform/x86/amd: pmc: Fix build without debugfs
  platform/x86: hp-wmi: Support touchpad on/off
  platform/x86: int3472/discrete: Drop a forward declaration
  platform/x86: toshiba_acpi: change turn_on_panel_on_resume to static
  platform/x86: wmi: Drop forward declaration of static functions
  platform/x86: toshiba_acpi: Remove duplicate include
  platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading
  ...
 2022-10-05 10:38:24 -07:00
Alex Williamson
91fa127794 PCI: Expose PCIe Resizable BAR support via sysfs 
Add a simple sysfs interface to Resizable BAR support, largely for the
purposes of assigning such devices to a VM through VFIO.  Resizable BARs
present a difficult feature to expose to a VM through emulation, as
resizing a BAR is done on the host.  It can fail, and often does, but we
have no means via emulation of a PCIe REBAR capability to handle the error
cases.

A vfio-pci specific ioctl interface is also cumbersome as there are often
multiple devices within the same bridge aperture and handling them is a
challenge.  In the interface proposed here, expanding a BAR potentially
requires such devices to be soft-removed during the resize operation and
rescanned after, in order for all the necessary resources to be released.
A pci-sysfs interface is also more universal than a vfio specific
interface.

Please see the ABI documentation update for usage.

Link: https://lore.kernel.org/r/166336088796.3597940.14973499936692558556.stgit@omen
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: Krzysztof Wilczyński <kw@linux.com>
 2022-10-05 12:21:02 -05:00
Linus Torvalds
1c2daf5218 chrome platform changes for v6.1 
cros_ec_proto:
 * Fix protocol failure if EC firmware jumps to RO part.
 
 cros_typec_switch:
 * Add USB Type-C switch driver for mode switches and retimers.
 * Integrate to EC for retimers, status update, and mode switches.
 * Clean-ups.
 
 cros_ec_typec:
 * Clean-ups.
 * Use partner PDOs to register USB PD capabilities.
 
 chromeos_laptop:
 * Fix a double-free.
 
 cros_ec_chardev:
 * Check data length from userland to avoid a memory corruption.
 
 cros_ec:
 * Expose suspend_timeout_ms in debugfs.
 * Notify the PM about wake events during resume.
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Merge tag 'tag-chrome-platform-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Tzung-Bi Shih:
 "cros_ec_proto:
   - Fix protocol failure if EC firmware jumps to RO part

  cros_typec_switch:
   - Add USB Type-C switch driver for mode switches and retimers
   - Integrate to EC for retimers, status update, and mode switches
   - Clean-ups

  cros_ec_typec:
   - Clean-ups
   - Use partner PDOs to register USB PD capabilities

  chromeos_laptop:
   - Fix a double-free

  cros_ec_chardev:
   - Check data length from userland to avoid a memory corruption

  cros_ec:
   - Expose suspend_timeout_ms in debugfs
   - Notify the PM about wake events during resume"

* tag 'tag-chrome-platform-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec: Notify the PM of wake events during resume
  platform/chrome: cros_ec_typec: Register partner PDOs
  platform/chrome: cros_typec_switch: Inline DRV_NAME
  platform/chrome: cros_typec_switch: Use PTR_ERR_OR_ZERO() to simplify
  platform/chrome: cros_typec_switch: Remove impossible condition
  platform/chrome: cros_typec_switch: Add missing newline on printk
  platform/chrome: cros_ec_typec: Correct alt mode index
  platform/chrome: cros_ec_typec: Add bit offset for DP VDO
  platform/chrome: cros_ec: Expose suspend_timeout_ms in debugfs
  platform/chrome: fix memory corruption in ioctl
  platform/chrome: fix double-free in chromeos_laptop_prepare()
  platform/chrome: cros_ec_typec: Get retimer handle
  platform/chrome: cros_ec_typec: Cleanup switch handle return paths
  platform/chrome: cros_typec_switch: Register mode switches
  platform/chrome: cros_typec_switch: Add event check
  platform/chrome: cros_typec_switch: Set EC retimer
  platform/chrome: cros_typec_switch: Add switch driver
  platform/chrome: Add Type-C mux set command definitions
  platform/chrome: cros_ec_proto: Update version on GET_NEXT_EVENT failure
 2022-10-05 10:14:48 -07:00
Chao Yu
718693c84d f2fs: introduce cp_status sysfs entry 
This patch adds a new sysfs entry named cp_status, it can output
checkpoint flags in real time.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2022-10-04 13:31:44 -07:00
Linus Torvalds
f3dfe925f9 There's not a huge amount of activity in the docs tree this time around, 
but a few significant changes even so:
 
 - A complete rewriting of the top-level index.rst file, which mostly
   reflects itself in a redone top page in the HTML-rendered docs.  The hope
   is that the new organization will be a friendlier starting point for
   both users and developers.
 
 - Some math-rendering improvements.
 
 - A coding-style.rst update on the use of BUG() and WARN()
 
 - A big maintainer-PHP guide update.
 
 - Some code-of-conduct updates
 
 - More Chinese translation work
 
 Plus the usual pile of typo fixes, corrections, and updates.
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Merge tag 'docs-6.1' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "There's not a huge amount of activity in the docs tree this time
  around, but a few significant changes even so:

   - A complete rewriting of the top-level index.rst file, which mostly
     reflects itself in a redone top page in the HTML-rendered docs. The
     hope is that the new organization will be a friendlier starting
     point for both users and developers.

   - Some math-rendering improvements.

   - A coding-style.rst update on the use of BUG() and WARN()

   - A big maintainer-PHP guide update.

   - Some code-of-conduct updates

   - More Chinese translation work

  Plus the usual pile of typo fixes, corrections, and updates"

* tag 'docs-6.1' of git://git.lwn.net/linux: (66 commits)
  checkpatch: warn on usage of VM_BUG_ON() and other BUG variants
  coding-style.rst: document BUG() and WARN() rules ("do not crash the kernel")
  Documentation: devres: add missing IO helper
  Documentation: devres: update IRQ helper
  Documentation/mm: modify page_referenced to folio_referenced
  Documentation/CoC: Reflect current CoC interpretation and practices
  docs/doc-guide: Add documentation on SPHINX_IMGMATH
  docs: process/5.Posting.rst: clarify use of Reported-by: tag
  docs, kprobes: Fix the wrong location of Kprobes
  docs: add a man-pages link to the front page
  docs: put atomic*.txt and memory-barriers.txt into the core-api book
  docs: move asm-annotations.rst into core-api
  docs: remove some index.rst cruft
  docs: reconfigure the HTML left column
  docs: Rewrite the front page
  docs: promote the title of process/index.rst
  Documentation: devres: add missing SPI helper
  Documentation: devres: add missing PINCTRL helpers
  docs: hugetlbpage.rst: fix a typo of hugepage size
  docs/zh_CN: Add new translation of admin-guide/bootconfig.rst
  ...
 2022-10-03 10:23:32 -07:00
Julien Panis
5a47aed0d6 Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items 
This commit adds frequency and num_overflows items to counter ABI file
(e.g. for TI ECAP hardware used in capture operating mode).

Signed-off-by: Julien Panis <jpanis@baylibre.com>
Link: https://lore.kernel.org/r/20220923142437.271328-3-jpanis@baylibre.com/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/467ae80e97c586c6bc9c453c6156ffcb5d4853d6.1664318353.git.william.gray@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2022-09-30 14:32:35 +02:00
William Breathitt Gray
45d2918520 counter: Introduce the Count capture component 
Some devices provide a latch function to save historic Count values.
This patch standardizes exposure of such functionality as Count capture
components. A COUNTER_COMP_CAPTURE macro is provided for driver authors
to define a capture component. A new event COUNTER_EVENT_CAPTURE is
introduced to represent Count value capture events.

Cc: Julien Panis <jpanis@baylibre.com>
Link: https://lore.kernel.org/r/c239572ab4208d0d6728136e82a88ad464369a7a.1664204990.git.william.gray@linaro.org/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/3cebaa0b807a225eb277d771504fe6dba7269ffd.1664318353.git.william.gray@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2022-09-30 14:32:35 +02:00
William Breathitt Gray
650ae67bbf counter: Introduce the Signal polarity component 
The Signal polarity component represents the active level of a
respective Signal. There are two possible states: positive (rising edge)
and negative (falling edge); enum counter_signal_polarity represents
these states. A convenience macro COUNTER_COMP_POLARITY() is provided
for driver authors to declare a Signal polarity component.

Cc: Julien Panis <jpanis@baylibre.com>
Link: https://lore.kernel.org/r/8f47d6e1db71a11bb1e2666f8e2a6e9d256d4131.1664204990.git.william.gray@linaro.org/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/b6e53438badcb6318997d13dd2fc052f97d808ac.1664318353.git.william.gray@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2022-09-30 14:32:35 +02:00
Greg Kroah-Hartman
bffcd14fac thunderbolt: Changes for v6.1 merge window 
This includes following Thunderbolt/USB4 changes for the v6.1 merge
 window:
 
   - Support for Intel Meteor Lake integrated Thunderbolt/USB4 controller
   - Support for ASMedia USB4 controller NVM firmware upgrade
   - Receiver lane margining support
   - Few fixes and cleanups.
 
 All these have been in linux-next with no reported issues.
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Merge tag 'thunderbolt-for-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

Mika writes:
  "thunderbolt: Changes for v6.1 merge window

   This includes following Thunderbolt/USB4 changes for the v6.1 merge
   window:
     - Support for Intel Meteor Lake integrated Thunderbolt/USB4 controller
     - Support for ASMedia USB4 controller NVM firmware upgrade
     - Receiver lane margining support
     - Few fixes and cleanups.

   All these have been in linux-next with no reported issues."

* tag 'thunderbolt-for-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
  thunderbolt: Explicitly enable lane adapter hotplug events at startup
  thunderbolt: Use dev_err_probe()
  thunderbolt: Convert to use sysfs_emit()/sysfs_emit_at() APIs
  thunderbolt: Fix spelling mistake "simultaneusly" -> "simultaneously"
  thunderbolt: debugfs: Fix spelling mistakes in seq_puts text
  thunderbolt: Add support for ASMedia NVM image format
  thunderbolt: Move vendor specific NVM handling into nvm.c
  thunderbolt: Provide tb_retimer_nvm_read() analogous to tb_switch_nvm_read()
  thunderbolt: Rename and make nvm_read() available for other files
  thunderbolt: Extend NVM version fields to 32-bits
  thunderbolt: Allow NVM upgrade of USB4 host routers
  thunderbolt: Add support for receiver lane margining
  thunderbolt: Add helper to check if CL states are enabled on port
  thunderbolt: Pass CL state bitmask to tb_port_clx_supported()
  thunderbolt: Move port CL state functions into correct place in switch.c
  thunderbolt: Move tb_xdomain_parent() to tb.h
  thunderbolt: Add support for Intel Meteor Lake
  thunderbolt: Add comment where Thunderbolt 4 PCI IDs start
  thunderbolt: Add DP OUT resource when DP tunnel is discovered
 2022-09-30 13:44:59 +02:00
Dave Jiang
7ca68fa3c8 dmaengine: idxd: add configuration for concurrent batch descriptor processing 
Add sysfs knob to allow control of the number of batch descriptors that can
be concurrently processed by an engine in the group as a fraction of the
Maximum Work Descriptors in Progress value specfied in ENGCAP register.
This control knob is part of toggle for QoS control.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20220917161222.2835172-6-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2022-09-29 22:46:08 +05:30
Dave Jiang
1f2737521a dmaengine: idxd: add configuration for concurrent work descriptor processing 
Add sysfs knob to allow control of the number of work descriptors that can
be concurrently processed by an engine in the group as a fraction of the
Maximum Work Descriptors in Progress value specified in ENGCAP register.
This control knob is part of toggle for QoS control.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20220917161222.2835172-5-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2022-09-29 22:46:08 +05:30
Dave Jiang
b0325aefd3 dmaengine: idxd: add WQ operation cap restriction support 
DSA 2.0 add the capability of configuring DMA ops on a per workqueue basis.
This means that certain ops can be disabled by the system administrator for
certain wq. By default, all ops are available. A bitmap is used to store
the ops due to total op size of 256 bits and it is more convenient to use a
range list to specify which bits are enabled.

One of the usage to support this is for VM migration between different
iteration of devices. The newer ops are disabled in order to allow guest to
migrate to a host that only support older ops. Another usage is to
restrict the WQ to certain operations for QoS of performance.

A sysfs of ops_config attribute is added per wq. It is only usable when the
ops_config bit is set under WQ_CAP register. This means that this attribute
will return -EOPNOTSUPP on DSA 1.x devices. The expected input is a range
list for the bits per operation the WQ supports.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20220917161222.2835172-4-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2022-09-29 22:46:08 +05:30
Randy Dunlap
c68c0db4b2 usb: chipidea: clarify Documentation/ABI text 
Fix grammar and improve readability of chipidea-usb2 text.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Peter Chen <peter.chen@kernel.org>
Cc: linux-usb@vger.kernel.org
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20220827203217.7837-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2022-09-27 13:21:44 -06:00
Randy Dunlap
8a7f0e8ab9 Documentation/ABI: correct possessive "its" typos 
Correct all uses of "it's" that are meant to be possessive "its".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220801025207.29971-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2022-09-27 13:21:43 -06:00
Aneesh Kumar K.V
9832fb8783 mm/demotion: expose memory tier details via sysfs 
Add /sys/devices/virtual/memory_tiering/ where all memory tier related
details can be found.  All allocated memory tiers will be listed there as
/sys/devices/virtual/memory_tiering/memory_tierN/

The nodes which are part of a specific memory tier can be listed via
/sys/devices/virtual/memory_tiering/memory_tierN/nodes

A directory hierarchy looks like
:/sys/devices/virtual/memory_tiering$ tree memory_tier4/
memory_tier4/
├── nodes
├── subsystem -> ../../../../bus/memory_tiering
└── uevent

:/sys/devices/virtual/memory_tiering$ cat memory_tier4/nodes
0,2

[aneesh.kumar@linux.ibm.com: drop toptier_nodes from sysfs]
  Link: https://lkml.kernel.org/r/20220922102201.62168-1-aneesh.kumar@linux.ibm.com
Link: https://lkml.kernel.org/r/20220830081736.119281-1-aneesh.kumar@linux.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Bharata B Rao <bharata@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Hesham Almatary <hesham.almatary@huawei.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Jagdish Gediya <jvgediya.oss@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tim Chen <tim.c.chen@intel.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2022-09-26 19:46:13 -07:00
Greg Kroah-Hartman
4314a0b79f Second set of IIO new device support, features and cleanup for the 6.1 cycle. 
Normal mixed bag of new device support with continuing trend that most new
 devices are supported by extending existing drivers - a positive sign perhaps
 that device manufacturers have somewhat stabilized their interfaces across
 product generations. The BNO055 driver was however a substantial addition
 including several additions to the IIO core.
 
 There are a number of significant patch sets under review, so if the 6.0
 cycle runs long I may send a 3rd pull request.
 
 New device support
 * adi,adxl313
   - Support for the ADXL312 and ADXL314 accelerometers.
 * bosch,bmp280
   - Support for the BMP380 family of pressures sensors.
     Included considerable refactoring and modernization of the bmp280
     driver.
 * bosch,bno055
   - New driver for this i2c/serial attached complex IMU.
 * lltc,ltc2497
   - Support for the LTC2499 16 channel, 24bit ADC.
 * st,pressure
   - Support for the LPS22DF pressure sensor
 * st,lsm6dsx
   - Support for the LSM6DSTX (Mainly adding the ID and WAI)
 
 Features
 * core - to support the bosch,bno055 requirements
   - Support for linear acceleration channel type (effect  of gravity removed)
   - Pitch, yaw and roll modifiers for angle channels.
   - Standard serialnumber attribute documentation.
   - Binary attributes - to allow for calibration save and restore.
 * adi,ad7923
   - Support extended range (wider supported input voltage range).
 * bosch,bmp280
   - Add filter controls for some supported parts.
 * microchip,mcp3911
   - Buffered capture support for this ADC.
   - Data ready interrupt support, including hiz control for line.
   - Oversampling ratio support.
 * st,stm32-adc
   - Support ID registers on parts where they are present, providing
     discoverability of some features.
 
 Fixes - late breaking fixes that I judged could wait for the merge window.
 * adi,ad5593r
   - Add a missing STOP condition between address write and data read.
   - Check for related i2c functionality.
 * adi,ad7923
   - Fix shift reporting for some variants supported by the driver.
 * infinion,dps310
   - Work around a hardware issue where a chip can hang by adding a
     timeout and reset path.
 
 Cleanups
 * Continuing work to switch to new pm macros.
 * MAINTAINERS
   - Drop duplication of wild card covered entry in ADI block and
     add missing entries to cover ltc294x binding files.
 * bosch,bma400
   - Fix trivial smatch warning.
 * bosch,bmp280
   - Fix broken links to datasheets
 * lltc,ltc2497
   - Fix missing entry for ltc2499
 * mexelis,mlx90614
   - Switch to get_avail() callback for _available attributes.
 * microchip,mcp3911
   - Move to devm_ resource management for all elements of probe()
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Merge tag 'iio-for-6.1b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

Second set of IIO new device support, features and cleanup for the 6.1 cycle.

Normal mixed bag of new device support with continuing trend that most new
devices are supported by extending existing drivers - a positive sign perhaps
that device manufacturers have somewhat stabilized their interfaces across
product generations. The BNO055 driver was however a substantial addition
including several additions to the IIO core.

There are a number of significant patch sets under review, so if the 6.0
cycle runs long I may send a 3rd pull request.

New device support
* adi,adxl313
  - Support for the ADXL312 and ADXL314 accelerometers.
* bosch,bmp280
  - Support for the BMP380 family of pressures sensors.
    Included considerable refactoring and modernization of the bmp280
    driver.
* bosch,bno055
  - New driver for this i2c/serial attached complex IMU.
* lltc,ltc2497
  - Support for the LTC2499 16 channel, 24bit ADC.
* st,pressure
  - Support for the LPS22DF pressure sensor
* st,lsm6dsx
  - Support for the LSM6DSTX (Mainly adding the ID and WAI)

Features
* core - to support the bosch,bno055 requirements
  - Support for linear acceleration channel type (effect  of gravity removed)
  - Pitch, yaw and roll modifiers for angle channels.
  - Standard serialnumber attribute documentation.
  - Binary attributes - to allow for calibration save and restore.
* adi,ad7923
  - Support extended range (wider supported input voltage range).
* bosch,bmp280
  - Add filter controls for some supported parts.
* microchip,mcp3911
  - Buffered capture support for this ADC.
  - Data ready interrupt support, including hiz control for line.
  - Oversampling ratio support.
* st,stm32-adc
  - Support ID registers on parts where they are present, providing
    discoverability of some features.

Fixes - late breaking fixes that I judged could wait for the merge window.
* adi,ad5593r
  - Add a missing STOP condition between address write and data read.
  - Check for related i2c functionality.
* adi,ad7923
  - Fix shift reporting for some variants supported by the driver.
* infinion,dps310
  - Work around a hardware issue where a chip can hang by adding a
    timeout and reset path.

Cleanups
* Continuing work to switch to new pm macros.
* MAINTAINERS
  - Drop duplication of wild card covered entry in ADI block and
    add missing entries to cover ltc294x binding files.
* bosch,bma400
  - Fix trivial smatch warning.
* bosch,bmp280
  - Fix broken links to datasheets
* lltc,ltc2497
  - Fix missing entry for ltc2499
* mexelis,mlx90614
  - Switch to get_avail() callback for _available attributes.
* microchip,mcp3911
  - Move to devm_ resource management for all elements of probe()

* tag 'iio-for-6.1b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (57 commits)
  iio: adc: mcp3911: add support for oversampling ratio
  dt-bindings: iio: adc: mcp3911: add microchip,data-ready-hiz entry
  iio: adc: mcp3911: add support for interrupts
  iio: adc: mcp3911: add support for buffers
  iio: adc: mcp3911: use resource-managed version of iio_device_register
  iio: accel: bma400: Fix smatch warning based on use of unintialized value.
  iio: light: st_uvis25: Use EXPORT_NS_SIMPLE_DEV_PM_OPS()
  iio: accel: bmi088: Use EXPORT_NS_GPL_RUNTIME_DEV_PM_OPS() and pm_ptr()
  iio: proximity: srf04: Use pm_ptr() to remove unused struct dev_pm_ops
  iio: proximity: sx9360: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  iio: proximity: sx9324: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  iio: proximity: sx9310: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
  docs: iio: add documentation for BNO055 driver
  iio: imu: add BNO055 I2C driver
  iio: imu: add BNO055 serdev driver
  dt-bindings: iio/imu: Add Bosch BNO055
  iio: document "serialnumber" sysfs attribute
  iio: document bno055 private sysfs attributes
  iio: imu: add Bosch Sensortec BNO055 core driver
  iio: add support for binary attributes
  ...
 2022-09-25 09:09:07 +02:00
Song Liu
bb26cfd9e7 livepatch: add sysfs entry "patched" for each klp_object 
Add per klp_object sysfs entry "patched". It makes it easier to debug
typos in the module name.

Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Joe Lawrence <joe.lawrence@redhat.com>
[pmladek@suse.com: Updated kernel version when the sysfs file will be introduced]
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220902205208.3117798-2-song@kernel.org
 2022-09-23 16:06:18 +02:00
Shyam Sundar S K
1590ac2c66 Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF 
AMD PMF driver provides the flexibility to turn "on" or "off"
CnQF feature (introduced in the earlier patch).

Add corresponding ABI documentation for the new sysfs node and
also update MAINTAINERS file with this new information

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20220922131202.56529-4-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
 2022-09-22 17:42:53 +02:00
Yi Liu
3c28a76124 vfio: Add struct device to vfio_device 
and replace kref. With it a 'vfio-dev/vfioX' node is created under the
sysfs path of the parent, indicating the device is bound to a vfio
driver, e.g.:

/sys/devices/pci0000\:6f/0000\:6f\:01.0/vfio-dev/vfio0

It is also a preparatory step toward adding cdev for supporting future
device-oriented uAPI.

Add Documentation/ABI/testing/sysfs-devices-vfio-dev.

Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20220921104401.38898-16-kevin.tian@intel.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
 2022-09-21 14:15:11 -06:00
Andrea Merello
e4ea07cf89 iio: document "serialnumber" sysfs attribute 
Add ABI documentation for the new "serialnumber" sysfs attribute. The
first user is the bno055 IIO driver.

Signed-off-by: Andrea Merello <andrea.merello@iit.it>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220907132205.28021-11-andrea.merello@iit.it
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2022-09-21 18:42:56 +01:00
Andrea Merello
4a1728d272 iio: document bno055 private sysfs attributes 
Add ABI documentation for bno055 driver private sysfs attributes.

Signed-off-by: Andrea Merello <andrea.merello@iit.it>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220907132205.28021-10-andrea.merello@iit.it
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2022-09-21 18:42:56 +01:00
Andrea Merello
246d178c78 iio: document pitch, yaw, roll modifiers 
Introduce ABI documentation for new modifiers used for reporting rotations
expressed as euler angles (i.e. yaw, pitch, roll).

It looks like we have some unit inconsistency along various IIO modifiers:
it seems that incli is in deg, angl is in radians and rot isn't documented,
but at least the adis16209 driver has rot in deg.

Here we use deg (so angl is the only one using radians).

Signed-off-by: Andrea Merello <andrea.merello@iit.it>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220907132205.28021-6-andrea.merello@iit.it
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2022-09-21 18:42:55 +01:00
Andrea Merello
396882617d iio: document linear acceleration modifiers 
Introduce ABI documentation for new IIO modifiers used for reporting
"linear acceleration" measures.

Signed-off-by: Andrea Merello <andrea.merello@iit.it>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220907132205.28021-3-andrea.merello@iit.it
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2022-09-21 18:42:55 +01:00
Greg Kroah-Hartman
d322259506 This tag contains habanalabs driver changes for v6.1: 
- Support new notifier event for device state change through eventfd.
 
 - Add uAPI to retrieve device attestation information for Gaudi2.
 
 - Add uAPI to retrieve the h/w status of all h/w blocks.
 
 - Add uAPI to control the running mode of the engine cores in Gaudi2.
 
 - Expose whether the device runs with secured firmware through the INFO ioctl
   and sysfs.
 
 - Support trace events in DMA allocations and MMU map/unmap operations.
 
 - Notify firmware when the device was acquired by a user process and when it
   was released. This is done as part of the RAS that the f/w performs.
 
 - Multiple bug fixes, refactors and renames.
 
 - Cleanup of error messages, moving some to debug level.
 
 - Enhance log prints in case of h/w error events for Gaudi2.
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Merge tag 'misc-habanalabs-next-2022-09-21' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next

Oded writes:

  "This tag contains habanalabs driver changes for v6.1:

   - Support new notifier event for device state change through eventfd.
   - Add uAPI to retrieve device attestation information for Gaudi2.
   - Add uAPI to retrieve the h/w status of all h/w blocks.
   - Add uAPI to control the running mode of the engine cores in Gaudi2.
   - Expose whether the device runs with secured firmware through the INFO ioctl
     and sysfs.
   - Support trace events in DMA allocations and MMU map/unmap operations.
   - Notify firmware when the device was acquired by a user process and when it
     was released. This is done as part of the RAS that the f/w performs.
   - Multiple bug fixes, refactors and renames.
   - Cleanup of error messages, moving some to debug level.
   - Enhance log prints in case of h/w error events for Gaudi2."

* tag 'misc-habanalabs-next-2022-09-21' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (68 commits)
  habanalabs: eliminate aggregate use warning
  habanalabs/gaudi: use 8KB aligned address for TPC kernels
  habanalabs: remove some f/w descriptor validations
  habanalabs: build ASICs from new to old
  habanalabs/gaudi2: allow user to flush PCIE by read
  habanalabs: failure to open device due to reset is debug level
  habanalabs/gaudi2: Remove unnecessary (void*) conversions
  habanalabs/gaudi2: add secured attestation info uapi
  habanalabs/gaudi2: add handling to pmmu events in eqe handler
  habanalabs/gaudi: change TPC Assert to use TPC DEC instead of QMAN err
  habanalabs: rename error info structure
  habanalabs/gaudi2: get f/w reset status register dynamically
  habanalabs/gaudi2: increase hard-reset sleep time to 2 sec
  habanalabs/gaudi2: print RAZWI info upon PCIe access error
  habanalabs: MMU invalidation h/w is per device
  habanalabs: new notifier events for device state
  habanalabs/gaudi2: free event irq if init fails
  habanalabs: fix resetting the DRAM BAR
  habanalabs: add support for new cpucp return codes
  habanalabs/gaudi2: read F/W security indication after hard reset
  ...
 2022-09-21 16:21:19 +02:00
Greg Kroah-Hartman
8be7dfc6a8 coresight: Changes for v6.1 
Coresight trace subsystem updates for v6.1 includes:
   - Support for HiSilicon PTT trace
   - Coresight cleanup of sysfs accessor functions, reduced
     code size.
   - Expose coresight timestamp source for ETMv4+
   - DT binding updates to include missing properties
   - Minor documentation, Kconfig text fixes.
 
 Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
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Merge tag 'coresight-next-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux into char-misc-next

Suzuki writes:
  "coresight: Changes for v6.1

   Coresight trace subsystem updates for v6.1 includes:
     - Support for HiSilicon PTT trace
     - Coresight cleanup of sysfs accessor functions, reduced
       code size.
     - Expose coresight timestamp source for ETMv4+
     - DT binding updates to include missing properties
     - Minor documentation, Kconfig text fixes.

   Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>"

* tag 'coresight-next-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux:
  hwtracing: hisi_ptt: Fix up for "iommu/dma: Make header private"
  MAINTAINERS: Add maintainer for HiSilicon PTT driver
  docs: trace: Add HiSilicon PTT device driver documentation
  hwtracing: hisi_ptt: Add tune function support for HiSilicon PCIe Tune and Trace device
  hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device
  iommu/arm-smmu-v3: Make default domain type of HiSilicon PTT device to identity
  coresight: cti-sysfs: Mark coresight_cti_reg_store() as __maybe_unused
  coresight: Make new csdev_access offsets unsigned
  coresight: cti-sysfs: Re-use same functions for similar sysfs register accessors
  coresight: Re-use same function for similar sysfs register accessors
  coresight: Simplify sysfs accessors by using csdev_access abstraction
  coresight: Remove unused function parameter
  coresight: etm4x: docs: Add documentation for 'ts_source' sysfs interface
  coresight: etm4x: Expose default timestamp source in sysfs
  dt-bindings: arm: coresight-tmc: Add 'iommu' property
  dt-bindings: arm: coresight: Add 'power-domains' property
  coresight: docs: Fix a broken reference
  coresight: trbe: fix Kconfig "its" grammar
 2022-09-21 16:16:03 +02:00