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Remove a use of head_compound_mapcount().
Link: https://lkml.kernel.org/r/20230111142915.1001531-15-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Remove the use of the compound_mapcount_ptr() wrapper, and add an
assertion that we're not passing a tail page if we're duplicating a PMD.
Link: https://lkml.kernel.org/r/20230111142915.1001531-12-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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In contrast to other rmap functions, page_add_new_anon_rmap() is always
called with a freshly allocated page. That means it can't be called with
a tail page. Turn page_add_new_anon_rmap() into folio_add_new_anon_rmap()
and add a page_add_new_anon_rmap() wrapper. Callers can be converted
individually.
[akpm@linux-foundation.org: fix NOMMU build. page_add_new_anon_rmap() requires CONFIG_MMU]
[willy@infradead.org: folio-compat.c needs rmap.h]
Link: https://lkml.kernel.org/r/20230111142915.1001531-9-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Instead of enforcing that the argument must be a head page by naming,
enforce it with the compiler by making it a folio. Also rename the
counter in struct folio from _compound_mapcount to _entire_mapcount.
Link: https://lkml.kernel.org/r/20230111142915.1001531-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Calling this 'mapcount' is confusing since mapcount is usually the number
of times something is mapped; instead this is the number of mapped pages.
It's also better to enforce that this is a folio rather than a head page.
Move folio_nr_pages_mapped() into mm/internal.h since this is not
something we want device drivers or filesystems poking at. Get rid of
folio_subpages_mapcount_ptr() and use folio->_nr_pages_mapped directly.
Link: https://lkml.kernel.org/r/20230111142915.1001531-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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We can use folio->_pincount directly, since all users are guarded by tests
of compound/large.
Link: https://lkml.kernel.org/r/20230111142915.1001531-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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mmu_notifier_range_update_to_read_only() was originally introduced in
commit c6d23413f81b ("mm/mmu_notifier:
mmu_notifier_range_update_to_read_only() helper") as an optimisation for
device drivers that know a range has only been mapped read-only. However
there are no users of this feature so remove it. As it is the only user
of the struct mmu_notifier_range.vma field remove that also.
Link: https://lkml.kernel.org/r/20230110025722.600912-1-apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The parameter entry of mas_preallocate is not used, so drop it.
Link: https://lkml.kernel.org/r/20230110154211.1758562-1-vernon2gm@gmail.com
Signed-off-by: Vernon Yang <vernon2gm@gmail.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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DAMON operations set
Supports of each DAMOS filter type are up to DAMON operations set
implementation in use, but not well mentioned on the kernel-doc comments.
Add the comment.
Link: https://lkml.kernel.org/r/20230110190400.119388-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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DAMON operations set
Patch series "mm/damon: trivial fixups".
This patchset contains patches for trivial fixups of DAMON's
documentation, MAINTAINERS section, and selftests.
This patch (of 8):
Supports of each DAMOS action are up to DAMON operations set
implementation in use, but not well mentioned on the kernel-doc comments.
Add the comment.
Link: https://lkml.kernel.org/r/20230110190400.119388-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20230110190400.119388-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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There is only a single user of uuid_le_cmp() API, let's make it private
to that user.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230202145412.87569-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:
1st set of IIO new device support, features and cleanups for the 6.3 cycle
The usual mixed bag. So far this has been a quiet cycle for IIO.
New device support
* adi,ad8686
- Add support for the AD5337 DAC - ID and 8 bit channel support.
* maxim,max5522
- New driver for this 2 channel DAC.
* nxp,imx93-adc
- New driver for this SoC ADC which is a fresh IP that will probably
turn up in additional SoCs going forwards.
* st,magn
- Add support for magnetometer part of LSM303C which is very similar
to standalone LIS3MDL already supported.
* ti,ads7924
- New driver for this 4 channel, 12-bit I2C ADC.
* ti,lmp92064
- New driver for this 12 bit SPI ADC.
* ti,tmag5273
- New driver for this 3D Hall-Effect Sensor.
Features
* core
- Add a standard structure for the value pairs in IIO_VAL_INT_PLUS_MICRO
available attributes and similar.
* cirrus,ep93xx
- Add DT binding docs and convert driver to DT based probing.
- Enable testing building with CONFIG_COMPILE_TEST.
* st,stm32-dfsdm
- Enable ID register support for discovery of hardware capabilities on
some devices.
Cleanups and minor fixes
* core
- Drop the custom iio_sysfs_match_string_with_gaps().
The special ability of this function to skip gaps in an array
was never used by any upstream driver.
- Sort headers whilst touching this file.
* tools
- Fix memory leak in iio_utils.c
* various
- leftover i2c probe_new() conversions.
- scnprintf() -> sysfs_emit() cleanups.
- hand rolled devm enables -> devm_regulator[_bulk]_get_enable()
- typo fixes
- dt-binding cleanup (whitespace, excess quotes and similar)
* adi,ad7746
- Set variable without pointless conditional.
* fsl,mma9551
- Squash false positives about use of uninitialized variable where
garbage undergoes an endian conversion before being ignored.
* measspec,ms5611
- Switch to fully devm_ managed probe() and so drop explicit remove()
* qcom,spmi-adc
- Use dev_err_probe() to suppress deferred print.
* qcom,spmi-adc5
- Define a missing channel used for battery identification.
* qcom,spmi-iadc
- Document a compatible seen in wild.
* semtech,sx9360
- Fix units on semtech,resolution dt-binding.
* sensiron,scd30
- dev_err_probe() usage to simplify error paths a little.
* st,lsm6dsx
- Add missing mount matrix for the gyro IIO device.
* taos,tsl2563
- Respect firmware configured interrupt polarity if present.
- Use i2c_smbus_write_word_data() in a few cases not previously covered.
- Factor out duplicated interrupt configuration.
- Switch to GENMASK() / BIT() from hand coded equivalents.
- Tidy up unused definitions.
- Use dev_err_probe() as appropriate.
- Drop platform_data as no in kernel users and there are better ways to
do equivalent if any are added.
- Add local struct device variable to tidy up code.
- Avoid dance via i2c_client to get the drvdata.
- Tidy up headers ordering and Makefile ordering.
* ti,adc128s052
- Use new spi_get_device_match_data().
- Drop ACPI_PTR() protection.
- Sort headers whilst here.
- Use asm instead of incorrect include of asm-generic/unaligned.h
* vishay,vcn4000
- Interrupt support for vcnl4040 (lots of refactoring needed)
* xilinx,ams
- Use fwnode_device_is_compatible() instead of open coding it.
* tag 'iio-for-6.3a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (71 commits)
iio: adc: ad7291: Fix indentation error by adding extra spaces
iio: accel: mma9551_core: Prevent uninitialized variable in mma9551_read_config_word()
iio: accel: mma9551_core: Prevent uninitialized variable in mma9551_read_status_word()
dt-bindings: iio/proximity: semtech,sx9360: Fix 'semtech,resolution' type
iio: imu: fix spdx format
iio: adc: imx93: Fix spelling mistake "geting" -> "getting"
dt-bindings: iio: cleanup examples - indentation
dt-bindings: iio: use lowercase hex in examples
dt-bindings: iio: correct node names in examples
dt-bindings: iio: minor whitespace cleanups
dt-bindings: iio: drop unneeded quotes
dt-bindings: iio: adc: Add NXP IMX93 ADC
iio: adc: add imx93 adc support
dt-bindings: iio: adc: add Texas Instruments ADS7924
iio: adc: ti-ads7924: add Texas Instruments ADS7924 driver
iio: imu: st_lsm6dsx: add 'mount_matrix' sysfs entry to gyro channel.
iio: imu: st_lsm6dsx: fix naming of 'struct iio_info' in st_lsm6dsx_shub.c.
iio: light: vcnl4000: Add interrupt support for vcnl4040
iio: light: vcnl4000: Make irq handling more generic
iio: light: vcnl4000: Prepare for more generic setup
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi into char-misc-next
Manivannan writes:
MHI Host
========
- Fixed the module description
MHI Endpoint
============
- Powered down the MHI EP stack completely during MHI RESET instead of just
doing transfer abort as the MMIO register access will be prohibited
afterwards. EP stack will also be powered on again in case the RESET
happened due to SYS_ERR.
- Added a sanity check before processing the command ring to make sure that
the channel is supported by the controller.
- Added a check to make sure the xfer_cb is available for the channel
before trying to send the error status to the client drivers. This
helps in avoiding a potential null pointer dereference.
- Fixed the debug log of RESET command
- Modified the channel ring handler lock to protect the whole handler
instead of locking it partially. This helps in avoiding a race that may
happen if a channel STOP/RESET command is issued by the host parallely.
- Saved the MHI state locally during suspend and resume. Otherwise, the MHI
EP stack will not be aware of a channel that got disabled and may try to
access it later.
- Changed the MHI state_lock to mutex instead of spinlock. This helps in
avoiding the sleeping in atomic bug reported by Dan Carpenter and also
allows the lock to be held throughout the state change.
- Fixed the off by one error while doing the MHI channel check during
command ring processing.
MHI Generic
===========
- Updated the MHI toplevel Makefile to use Kconfig flags for building the
host and endpoint sub-directories conditionally.
* tag 'mhi-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi:
bus: mhi: ep: Fix off by one in mhi_ep_process_cmd_ring()
bus: mhi: ep: Change state_lock to mutex
bus: mhi: ep: Save channel state locally during suspend and resume
bus: mhi: ep: Move chan->lock to the start of processing queued ch ring
bus: mhi: ep: Fix the debug message for MHI_PKT_TYPE_RESET_CHAN_CMD cmd
bus: mhi: ep: Only send -ENOTCONN status if client driver is available
bus: mhi: ep: Check if the channel is supported by the controller
bus: mhi: ep: Power up/down MHI stack during MHI RESET
bus: mhi: host: Update mhi driver description
bus: mhi: Update Makefile to used Kconfig flags
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Add an optional variant of devm_of_phy_get() that also takes care of
printing real errors, so drivers no longer have to open-code this
operation.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/4cd0069bcff424ffc5c3a102397c02370b91985b.1674584626.git.geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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There were never any upstream users of this function since its
introduction almost 10 years ago.
Besides, the dummy for phy_optional_get() should have returned NULL
instead of an error code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/df61992b1d66bccf4e6e1eafae94a7f7d7629f34.1674584626.git.geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add a Netlink spec-compatible family for netdevs.
This is a very simple implementation without much
thought going into it.
It allows us to reap all the benefits of Netlink specs,
one can use the generic client to issue the commands:
$ ./cli.py --spec netdev.yaml --dump dev_get
[{'ifindex': 1, 'xdp-features': set()},
{'ifindex': 2, 'xdp-features': {'basic', 'ndo-xmit', 'redirect'}},
{'ifindex': 3, 'xdp-features': {'rx-sg'}}]
the generic python library does not have flags-by-name
support, yet, but we also don't have to carry strings
in the messages, as user space can get the names from
the spec.
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Co-developed-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Co-developed-by: Marek Majtyka <alardam@gmail.com>
Signed-off-by: Marek Majtyka <alardam@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/327ad9c9868becbe1e601b580c962549c8cd81f2.1675245258.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The do_idr_lock parameter to bpf_map_free_id was introduced by commit
bd5f5f4ecb78 ("bpf: Add BPF_MAP_GET_FD_BY_ID"). However, all callers set
do_idr_lock = true since commit 1e0bd5a091e5 ("bpf: Switch bpf_map ref
counter to atomic64_t so bpf_map_inc() never fails").
While at it also inline __bpf_map_put into its only caller bpf_map_put
now that do_idr_lock can be dropped from its signature.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Link: https://lore.kernel.org/r/20230202141921.4424-1-tklauser@distanz.ch
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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stall.2023.01.09a: RCU CPU stall-warning updates.
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'srcu.2023.01.03a', 'srcu-always.2023.02.02a', 'tasks.2023.01.03a', 'torture.2023.01.05a' and 'torturescript.2023.01.03a' into HEAD
doc.2023.01.05a: Documentation update.
fixes.2023.01.23a: Miscellaneous fixes.
kvfree.2023.01.03a: kvfree_rcu() updates.
srcu.2023.01.03a: SRCU updates.
srcu-always.2023.02.02a: Finish making SRCU be unconditionally available.
tasks.2023.01.03a: Tasks-RCU updates.
torture.2023.01.05a: Torture-test updates.
torturescript.2023.01.03a: Torture-test scripting updates.
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The kvfree_rcu() and kfree_rcu() APIs are hazardous in that if you forget
the second argument, it works, but might sleep. This sleeping can be a
correctness bug from atomic contexts, and even in non-atomic contexts
it might introduce unacceptable latencies. This commit therefore adds
kvfree_rcu_mightsleep() and kfree_rcu_mightsleep(), which will replace
the single-argument kvfree_rcu() and kfree_rcu(), respectively.
This commit enables a series of commits that switch from single-argument
kvfree_rcu() and kfree_rcu() to their _mightsleep() counterparts. Once
all of these commits land, the single-argument versions will be removed.
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
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net/core/gro.c
7d2c89b32587 ("skb: Do mix page pool and page referenced frags in GRO")
b1a78b9b9886 ("net: add support for ipv4 big tcp")
https://lore.kernel.org/all/20230203094454.5766f160@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf, can and netfilter.
Current release - regressions:
- phy: fix null-deref in phy_attach_direct
- mac802154: fix possible double free upon parsing error
Previous releases - regressions:
- bpf: preserve reg parent/live fields when copying range info,
prevent mis-verification of programs as safe
- ip6: fix GRE tunnels not generating IPv6 link local addresses
- phy: dp83822: fix null-deref on DP83825/DP83826 devices
- sctp: do not check hb_timer.expires when resetting hb_timer
- eth: mtk_sock: fix SGMII configuration after phylink conversion
Previous releases - always broken:
- eth: xdp: execute xdp_do_flush() before napi_complete_done()
- skb: do not mix page pool and page referenced frags in GRO
- bpf:
- fix a possible task gone issue with bpf_send_signal[_thread]()
- fix an off-by-one bug in bpf_mem_cache_idx() to select the right
cache
- add missing btf_put to register_btf_id_dtor_kfuncs
- sockmap: fon't let sock_map_{close,destroy,unhash} call itself
- gso: fix null-deref in skb_segment_list()
- mctp: purge receive queues on sk destruction
- fix UaF caused by accept on already connected socket in exotic
socket families
- tls: don't treat list head as an entry in tls_is_tx_ready()
- netfilter: br_netfilter: disable sabotage_in hook after first
suppression
- wwan: t7xx: fix runtime PM implementation
Misc:
- MAINTAINERS: spring cleanup of networking maintainers"
* tag 'net-6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (65 commits)
mtk_sgmii: enable PCS polling to allow SFP work
net: mediatek: sgmii: fix duplex configuration
net: mediatek: sgmii: ensure the SGMII PHY is powered down on configuration
MAINTAINERS: update SCTP maintainers
MAINTAINERS: ipv6: retire Hideaki Yoshifuji
mailmap: add John Crispin's entry
MAINTAINERS: bonding: move Veaceslav Falico to CREDITS
net: openvswitch: fix flow memory leak in ovs_flow_cmd_new
net: ethernet: mtk_eth_soc: disable hardware DSA untagging for second MAC
virtio-net: Keep stop() to follow mirror sequence of open()
selftests: net: udpgso_bench_tx: Cater for pending datagrams zerocopy benchmarking
selftests: net: udpgso_bench: Fix racing bug between the rx/tx programs
selftests: net: udpgso_bench_rx/tx: Stop when wrong CLI args are provided
selftests: net: udpgso_bench_rx: Fix 'used uninitialized' compiler warning
can: mcp251xfd: mcp251xfd_ring_set_ringparam(): assign missing tx_obj_num_coalesce_irq
can: isotp: split tx timer into transmission and timeout
can: isotp: handle wait_event_interruptible() return values
can: raw: fix CAN FD frame transmissions over CAN XL devices
can: j1939: fix errant WARN_ON_ONCE in j1939_session_deactivate
hv_netvsc: Fix missed pagebuf entries in netvsc_dma_map/unmap()
...
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ambiguities
We currently have a struct ssam_request_sync and a function
ssam_request_sync(). While this is valid C, there are some downsides to
it.
One of these is that current Sphinx versions (>= 3.0) cannot
disambiguate between the two (see disucssion and pull request linked
below). It instead emits a "WARNING: Duplicate C declaration" and links
for the struct and function in the resulting documentation link to the
same entry (i.e. both to either function or struct documentation)
instead of their respective own entries.
While we could just ignore that and wait for a fix, there's also a point
to be made that the current naming can be somewhat confusing when
searching (e.g. via grep) or trying to understand the levels of
abstraction at play:
We currently have struct ssam_request_sync and associated functions
ssam_request_sync_[alloc|free|init|wait|...]() operating on this struct.
However, function ssam_request_sync() is one abstraction level above
this. Similarly, ssam_request_sync_with_buffer() is not a function
operating on struct ssam_request_sync, but rather a sibling to
ssam_request_sync(), both using the struct under the hood.
Therefore, rename the top level request functions:
ssam_request_sync() -> ssam_request_do_sync()
ssam_request_sync_with_buffer() -> ssam_request_do_sync_with_buffer()
ssam_request_sync_onstack() -> ssam_request_do_sync_onstack()
Link: https://lore.kernel.org/all/085e0ada65c11da9303d07e70c510dc45f21315b.1656756450.git.mchehab@kernel.org/
Link: https://github.com/sphinx-doc/sphinx/pull/8313
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221220175608.1436273-2-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Similar to the target category (TC), the target ID (TID) can be one
value out of a small number of choices, given in enum ssam_ssh_tid.
In the device ID macros, SSAM_SDEV() and SSAM_VDEV() we already use text
expansion to, both, remove some textual clutter for the target category
values and enforce that the value belongs to the known set. Now that we
know the names for the target IDs, use the same trick for them as well.
Also rename the SSAM_ANY_x macros to SSAM_SSH_x_ANY to better fit in.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20221202223327.690880-9-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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target and source IDs
The `tid_in` and `tid_out` fields of the serial hub protocol command
struct (struct ssh_command) are actually source and target IDs,
indicating the peer from which the message originated and the peer for
which it is intended.
Change the naming of those fields accordingly and improve the protocol
documentation. Additionally, introduce an enum containing all currently
known peers, i.e. targets and sources.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221202223327.690880-3-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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The powercap/idle_inject core uses play_idle_precise() to inject idle
time. But play_idle_precise() can't ensure that the CPU is fully idle
for the specified duration because of wakeups due to interrupts. To
compensate for the reduced idle time due to these wakes, the caller
can adjust requested idle time for the next cycle.
The goal of idle injection is to keep system at some idle percent on
average, so this is fine to overshoot or undershoot instantaneous idle
times.
The idle inject core provides an interface idle_inject_set_duration()
to set idle and runtime duration.
Some architectures provide interface to get actual idle time observed
by the hardware. So, the effective idle percent can be adjusted using
the hardware feedback. For example, Intel CPUs provides package idle
counters, which is currently used by Intel powerclamp driver to
readjust runtime duration.
When the caller's desired idle time over a period is less or greater
than the actual CPU idle time observed by the hardware, caller can
readjust idle and runtime duration for the next cycle.
The only way this can be done currently is by monitoring hardware idle
time from a different software thread and readjust idle and runtime
duration using idle_inject_set_duration().
This can be avoided by adding a callback which callers can register and
readjust from this callback function.
Add a capability to register an optional update() callback, which can be
called from the idle inject core before waking up CPUs for idle injection.
This callback can be registered via a new interface:
idle_inject_register_full().
During this process of constantly adjusting idle and runtime duration
there can be some cases where actual idle time is more than the desired.
In this case idle inject can be skipped for a cycle. If update() callback
returns false, then the idle inject core skips waking up CPUs for the
idle injection.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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https://gitlab.freedesktop.org/drm/msm into drm-next
msm-next for v6.3
There is one devfreq patch, maintainer acked to land via msm-next to
avoid a build break on platforms that do not support PM_DEVFREQ. And
otherwise the usual assortment:
GPU:
- Add MSM_SUBMIT_BO_NO_IMPLICIT
- a2xx: Support to load legacy firmware
- a6xx: GPU devcore dump updates for a650/a660
- GPU devfreq tuning and fixes
DPU, DSI, MDSS:
- Support for SM8350, SM8450 SM8550 and SC8280XP platform
Core:
- Added bindings for SM8150 (driver support already present)
DPU:
- Partial support for DSC on SM8150 and SM8250
- Fixed color transformation matrix being lost on suspend/resume
- Include DSC blocks into register snapshot
- Misc HW catalog fixes
DP:
- Support for DP on SDM845 and SC8280XP platforms
- HPD fixes
- Support for limiting DP link rate via DT property, this enables
- Support for HBR3 rates.
DSI:
- Validate display modes according to the DSI OPP table
- DSI PHY support for the SM6375 platform
- Fixed byte intf clock selection for 14nm PHYs
- Fix the case of empty OPP tables (fixing db410c)
- DT schema rework and fixes
HDMI:
- Turn 8960 HDMI PHY into clock provider,
- Make 8960 HDMI PHY use PXO clock from DT
MDP5:
- Schema conversion to YAML
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGv6zQ-zsgS+NG+WuV=tk51q9vA2QdKqYhNgiXQddAdZjA@mail.gmail.com
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git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux into char-misc-next
Suzuki writes:
coresight: Updates for v6.3
- Dynamic TraceID allocation scheme for CoreSight trace source. Allows systems
with > 44 CPUs to use the ETMs. TraceID is advertised via AUX_OUTPUT_HWID
packets in perf.data. Also allows allocating trace-ids for non-CPU bound trace
components (e.g., Qualcomm TPDA).
- Support for Qualcomm TPDA and TPDM CoreSight devices.
- Support for Ultrasoc SMB CoreSight Sink buffer.
- Fixes for HiSilicon PTT driver
- MAINTAINERS update: Add Reviewer for HiSilicon PTT driver
- Bug fixes for CTI power management and sysfs mode
- Fix CoreSight ETM4x TRCSEQRSTEVRn access
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
* tag 'coresight-next-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux: (35 commits)
coresight: tmc: Don't enable TMC when it's not ready.
coresight: tpda: fix return value check in tpda_probe()
Coresight: tpda/tpdm: remove incorrect __exit annotation
coresight: perf: Output trace id only once
coresight: Fix uninitialised variable use in coresight_disable
Documentation: coresight: tpdm: Add dummy comment after sysfs list
Documentation: coresight: Extend title heading syntax in TPDM and TPDA documentation
Documentation: trace: Add documentation for TPDM and TPDA
dt-bindings: arm: Adds CoreSight TPDA hardware definitions
Coresight: Add TPDA link driver
coresight-tpdm: Add integration test support
coresight-tpdm: Add DSB dataset support
dt-bindings: arm: Add CoreSight TPDM hardware
Coresight: Add coresight TPDM source driver
coresight: core: Use IDR for non-cpu bound sources' paths.
coresight: trace-id: Add debug & test macros to Trace ID allocation
coresight: events: PERF_RECORD_AUX_OUTPUT_HW_ID used for Trace ID
kernel: events: Export perf_report_aux_output_id()
coresight: trace id: Remove legacy get trace ID function.
coresight: etmX.X: stm: Remove trace_id() callback
...
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Add pci_enable_link_state() to allow devices to change the default BIOS
configured states. Clears the BIOS default settings then sets the new
states and reconfigures the link under the semaphore. Also add
PCIE_LINK_STATE_ALL macro for convenience for callers that want to enable
all link states.
Link: https://lore.kernel.org/r/20230120031522.2304439-2-david.e.box@linux.intel.com
Signed-off-by: Michael Bottini <michael.a.bottini@linux.intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
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It is slightly better to make the ACPI thermal helper functions retrieve
the trip point temperature only instead of doing the full trip point
initialization, because they are also used for updating some already
registered trip points, in which case initializing a new trip just
in order to update the temperature of an existing one is somewhat
wasteful.
Modify the ACPI thermal helpers accordingly and update their users.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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These flags are only used in ceph filesystem in fs/ceph, so just
move it to the place it should be.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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In netdev common pattern, extack pointer is forwarded to the drivers
to be filled with error message. However, the caller can easily
overwrite the filled message.
Instead of adding multiple "if (!extack->_msg)" checks before any
NL_SET_ERR_MSG() call, which appears after call to the driver, let's
add new macro to common code.
[1] https://lore.kernel.org/all/Y9Irgrgf3uxOjwUm@unreal
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/6993fac557a40a1973dfa0095107c3d03d40bec1.1675171790.git.leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch introduces gso_ipv4_max_size and gro_ipv4_max_size
per device and adds netlink attributes for them, so that IPV4
BIG TCP can be guarded by a separate tunable in the next patch.
To not break the old application using "gso/gro_max_size" for
IPv4 GSO packets, this patch updates "gso/gro_ipv4_max_size"
in netif_set_gso/gro_max_size() if the new size isn't greater
than GSO_LEGACY_MAX_SIZE, so that nothing will change even if
userspace doesn't realize the new netlink attributes.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch adds three APIs to replace the iph->tot_len setting
and getting in all places where IPv4 BIG TCP packets may reach,
they will be used in the following patches.
Note that iph_totlen() will be used when iph is not in linear
data of the skb.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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kfuncs are functions defined in the kernel, which may be invoked by BPF
programs. They may or may not also be used as regular kernel functions,
implying that they may be static (in which case the compiler could e.g.
inline it away, or elide one or more arguments), or it could have
external linkage, but potentially be elided in an LTO build if a
function is observed to never be used, and is stripped from the final
kernel binary.
This has already resulted in some issues, such as those discussed in [0]
wherein changes in DWARF that identify when a parameter has been
optimized out can break BTF encodings (and in general break the kfunc).
[0]: https://lore.kernel.org/all/1675088985-20300-2-git-send-email-alan.maguire@oracle.com/
We therefore require some convenience macro that kfunc developers can
use just add to their kfuncs, and which will prevent all of the above
issues from happening. This is in contrast with what we have today,
where some kfunc definitions have "noinline", some have "__used", and
others are static and have neither.
Note that longer term, this mechanism may be replaced by a macro that
more closely resembles EXPORT_SYMBOL_GPL(), as described in [1]. For
now, we're going with this shorter-term approach to fix existing issues
in kfuncs.
[1]: https://lore.kernel.org/lkml/Y9AFT4pTydKh+PD3@maniforge.lan/
Note as well that checkpatch complains about this patch with the
following:
ERROR: Macros with complex values should be enclosed in parentheses
+#define __bpf_kfunc __used noinline
There seems to be a precedent for using this pattern in other places
such as compiler_types.h (see e.g. __randomize_layout and noinstr), so
it seems appropriate.
Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/20230201173016.342758-2-void@manifault.com
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There are no users of platform data in the mainline tree, and new
boards should use either ACPI or device tree, so let's stop supporting
it. This will help with converting the driver to gpiod API.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20230201053447.4098486-1-dmitry.torokhov@gmail.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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This reverts commit 622bd6ea90086beb98ac439edd7d57de73d1d6f9.
Dmitry Torokhov points out that this conversion leaves an existing board
in reset state due to not properly handled polarity. Additionally, the
GPIO name inadvertenly changes from "reset-gpio" to "rstn-gpios".
Revert to avoid these regressions.
Follow up patches for a better conversion are applied as well.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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Move the lock_class_key structure out of struct bus_type and into the
dynamic structure we create already for all bus_types registered with
the kernel. This saves on static space and removes one more writable
field in struct bus_type.
In the future, the same field can be moved out of the struct class logic
because it shares this same private structure.
Most everyone will never notice this change, as lockdep is not enabled
in real systems so no memory or logic changes are happening for them.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20230201083349.4038660-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Except for isochronous-configured devices, software may set
Max_Read_Request_Size (MRRS) to any value up to 4096. If a device issues a
read request with size greater than the completer's Max_Payload_Size (MPS),
the completer is required to break the response into multiple completions.
Instead of correctly responding with multiple completions to a large read
request, some LS7A Root Ports respond with a Completer Abort. To prevent
this, the MRRS must be limited to an implementation-specific value.
The OS cannot detect that value, so rely on BIOS to configure MRRS before
booting, and quirk the Root Ports so we never set an MRRS larger than that
BIOS value for any downstream device.
N.B. Hot-added devices are not configured by BIOS, and they power up with
MRRS = 512 bytes, so these devices will be limited to 512 bytes. If the
LS7A limit is smaller, those hot-added devices may not work correctly, but
per [1], hotplug is not supported with this chipset revision.
[1] https://lore.kernel.org/r/073638a7-ae68-2847-ac3d-29e5e760d6af@loongson.cn
[bhelgaas: commit log]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216884
Link: https://lore.kernel.org/r/20230201043018.778499-3-chenhuacai@loongson.cn
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Merge series from Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com>:
In preparation for supporting devices with multiple chip selects add an
interface for accessing the chip selects via a function.
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The s3c-cpu-freq header was previously included by:
./arch/arm/mach-s3c/mach-bast.c
./arch/arm/mach-s3c/mach-osiris-dvs.c
./arch/arm/mach-s3c/mach-osiris.c
./include/linux/soc/samsung/s3c-cpufreq-core.h
Commit a4946a153cb9 ("ARM: s3c: remove all s3c24xx support") removes the
files in ./arch/arm/mach-s3c/; commit daf0ee583fc7 ("cpufreq: remove
s3c24xx drivers") removes the file s3c-cpufreq-core.h.
Remove this obsolete header file.
This issue was identified, as s3c-cpu-freq.h referred to the removed config
ARM_S3C_CPUFREQ.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The htc-pasic3 MFD device was only used in the PXA magician
machine that is now removed, so this can be recycled as well.
Cc: Lee Jones <lee@kernel.org>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The ucb1400 MFD driver and its gpio and touchscreen child
drivers were only used on a few PXA machines that were unused
for a while and are now removed.
Removing these leaves the AC97 support as ALSA specific,
no other drivers are now connected through this interface.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Lee Jones <lee@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Marek Vasut <marex@denx.de>
Cc: linux-kernel@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Four separate mfd drivers are in the "tmio" family, and all of
them were used in now-removed PXA machines (eseries, tosa, and
hx4700), so the mfd drivers and all its children can be removed
as well.
Cc: Lee Jones <lee@kernel.org>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The v3020 RTC driver was exclusively used by the now removed
cm-x300.c machine.
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-rtc@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This driver was used for a couple of Intel PXA and Samsung S3C24xx
based PDAs, but all of those are now removed from the kernel, so
the driver itself is no longer useful.
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: linux-pm@vger.kernel.org
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Most PXA/MMP boards were removed, so the board specific ASoC
support is no longer needed, leaving only support for DT
based ones, as well as the "gumstix" and "spitz" machines
that may get converted to DT later.
Cc: Ian Molton <spyro@f2s.com>
Cc: Ken McGuire <kenm@desertweyr.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The pxa930 platform is getting removed and no upstream machine
ever defined a rotary keyboard device.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The pxa930 SoC support is getting removed, and no upstream
board ever provided the trkball device that this driver
relies on.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-input@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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soc/drivers
arm64: ZynqMP SoC changes for v6.3
Firmware changes
- fix memory leak in error path inside notification code
- trivial comment cleanup
- add workaround for SD tap delay programming with old PMUFW
* tag 'zynqmp-soc-for-v6.3' of https://github.com/Xilinx/linux-xlnx:
firmware: xilinx: Clear IOCTL_SET_SD_TAPDELAY using PM_MMIO_WRITE
firmware: xilinx: Remove kernel-doc marking in the code
driver: soc: xilinx: fix memory leak in xlnx_add_cb_for_notify_event()
Link: https://lore.kernel.org/r/42be5129-3ca2-ddbc-ac3b-6448245b61c2@monstr.eu
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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