Commit graph

1,308,922 commits

Author SHA1 Message Date
Kunwu Chan
e22810ab3f mei: bus: constify the struct mei_cl_bus_type usage
Now that the driver core can properly handle constant struct bus_type,
move the mei_cl_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20240423024133.1890455-1-chentao@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 21:33:16 -07:00
Greg Kroah-Hartman
84e79a7f63 Update peci-next for v6.10-rc1
- Move peci_bus_type, peci_controller_type and peci_device_type to be
   constant.
 -----BEGIN PGP SIGNATURE-----
 
 iQJOBAABCAA4FiEEVeIYQcCloMPRsCC93RgStozwYHYFAmYilsMaHGl3b25hLndp
 bmlhcnNrYUBpbnRlbC5jb20ACgkQ3RgStozwYHZYOBAApNWoayMbJZssJEc0MOvJ
 49tiiWJAFhc96pN+r+mv/uyKV/MVEd9Ti67hZL7ATgeyd55RC/c7h30JFlLEu/G5
 N3jM6DZaOAyMHHqhxa8mnQzsCIGem/wviLPozvACa2Ju/6nj9eV1pqXZ6Nh2NV+7
 5ONBEAwlctjcwCIJAd4qrodDTokjYo0sM44FrtvLCr/GXxfZD1v1TYmvX5BtRwP6
 LRtmqqCyggV3AGUNsPMh3xYsttVDzZEeTj7FRDgSsFgRjOaEBeisToVPKsExjTxt
 zABlz8SQ9OqGYXWNQpKbc81Ray5n88e4Jcfm0k/uiC1/bO1qW9vO+C6krPmLCieN
 ApMOPqNfmraELh9zKMS3bPzlyefUgVDS476XlURK+SFi7s2442LzQnDQ7GkxaxPk
 f8+onW0o1nBiufDvaSWv0uMYhdvKofuYNPEz0SBZvDi5AS3tOuinp6DvIx8DMWCp
 7Xh60g0cdqD21ix18XmyHLwIoRTEWwltI3U/HW/p7TNm9KmEGDjFZkM/f8S5RDs6
 +qpVEf6aRWDypMC5TZ2P02ApErl75Ws6ndSwnYx0ivxkCKix2MKL8dHaczD2rkuH
 C4TdAehIRMydB2i3gBmrVRRjTQgYgF687ims1H0P9V92VI/tYwPrlvyHuIw6q6mY
 gnxjndgsl8q/RkVVc+brL/k=
 =jQzZ
 -----END PGP SIGNATURE-----

Merge tag 'peci-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/iwi/linux into char-misc-next

Iwona writes:

Update peci-next for v6.10-rc1

- Move peci_bus_type, peci_controller_type and peci_device_type to be
  constant.
2024-04-23 21:31:45 -07:00
Greg Kroah-Hartman
7ab7f2ca46 IIO: 1st set of fixes for the 6.9 cycle.
adi,asdis16475
 - Write the correct field in the register when setting the sync mode.
 bosch,bmp280
 - Wrong chip specific data being used for the bme280 in the SPI driver.
 - Fix that we can't use chip IDs because Bosch reuses them for incompatible
   devices (some require a padding byte, others don't).
 maxim,max30102 (dt binding)
 - Fix incorrect property check to actually match on a device from the
   binding rather than a completely different one due to a typo.
 memsic,mxc4005
 - Fix wrong masking of interrupt register accidentally disabling temperature
   compensation. Also hammer initial state to 0 as it's not documented
   if interrupts are masked after reset.
 - Explicit reset on probe() and resume() as some devices do not power up
   correctly without a reset.
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEbilms4eEBlKRJoGxVIU0mcT0FogFAmYlUsYRHGppYzIzQGtl
 cm5lbC5vcmcACgkQVIU0mcT0FogshhAAtwBdnmk1bpkmyQ7hZu3oFNqDzdbY6fwJ
 ZSP8ey+3TNJ8XrJoLS4W8jnInVyeoc2zyctCPF1gOjii8XI78g5ECXV8I1NiTCAS
 lEdk8CZWCgUm6KdXYrg65MhjEk+RzEbk0+MCo49xMiRbvuccq84ktQXO2d6qcJqL
 y4kgTmkTRe3pVQ3beMi4CUzMG3WOE+RTlDqjfqTw6ybv0oKEJn4SnFJiKWioyWOv
 9wtQ8WQ0RGJHLzEbqaYsi4HnOlz2xVIBW10HzdZldy8TPwvhNYG2hUu/XuLmsyxL
 QSES5BHf171lVN9bjhpFipGPFLiERJPmjKQBC+Pir0rEsNKlyzjwD/17JXXSUkKO
 2E5l8QY43kewUy1dU/BfhkDQz4J0BwltbMLEnVCCP/BcqsItbE9/qJaXSyNTxlpA
 9kO3WDZrcm3Al/t4IOiDioiw/DuLG5iVTIkg9ksTmO2BmHfaPMuNnGY7SV7e9Zc9
 TOKKLf2YzDqq48450SRhTC9SF+XzaMqTVi8GWO8+3lnB9z/W5Lt+2BXwx8JiZfDp
 H1Y+SWOAhHnlVNV2m6KziADdSyGMe17eor0ZMupm5TMBvUQubprHX3geURZ5fiWu
 frREyrueXmiWXiYOrYABSuV51oMrOakQvljCHSKD2tbgAWTQ9RcLGFPcJwLoayJB
 dBfLULKCQrg=
 =e50P
 -----END PGP SIGNATURE-----

Merge tag 'iio-fixes-for-6.9a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-linus

Jonathan writes:

IIO: 1st set of fixes for the 6.9 cycle.

adi,asdis16475
- Write the correct field in the register when setting the sync mode.
bosch,bmp280
- Wrong chip specific data being used for the bme280 in the SPI driver.
- Fix that we can't use chip IDs because Bosch reuses them for incompatible
  devices (some require a padding byte, others don't).
maxim,max30102 (dt binding)
- Fix incorrect property check to actually match on a device from the
  binding rather than a completely different one due to a typo.
memsic,mxc4005
- Fix wrong masking of interrupt register accidentally disabling temperature
  compensation. Also hammer initial state to 0 as it's not documented
  if interrupts are masked after reset.
- Explicit reset on probe() and resume() as some devices do not power up
  correctly without a reset.

* tag 'iio-fixes-for-6.9a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio:imu: adis16475: Fix sync mode setting
  iio: accel: mxc4005: Reset chip on probe() and resume()
  iio: accel: mxc4005: Interrupt handling fixes
  dt-bindings: iio: health: maxim,max30102: fix compatible check
  iio: pressure: Fixes SPI support for BMP3xx devices
  iio: pressure: Fixes BME280 SPI driver data
2024-04-23 21:26:06 -07:00
Tejun Heo
d40f92020c workqueue: The default node_nr_active should have its max set to max_active
The default nna (node_nr_active) is used when the pool isn't tied to a
specific NUMA node. This can happen in the following cases:

 1. On NUMA, if per-node pwq init failure and the fallback pwq is used.
 2. On NUMA, if a pool is configured to span multiple nodes.
 3. On single node setups.

5797b1c189 ("workqueue: Implement system-wide nr_active enforcement for
unbound workqueues") set the default nna->max to min_active because only #1
was being considered. For #2 and #3, using min_active means that the max
concurrency in normal operation is pushed down to min_active which is
currently 8, which can obviously lead to performance issues.

exact value nna->max is set to doesn't really matter. #2 can only happen if
the workqueue is intentionally configured to ignore NUMA boundaries and
there's no good way to distribute max_active in this case. #3 is the default
behavior on single node machines.

Let's set it the default nna->max to max_active. This fixes the artificially
lowered concurrency problem on single node machines and shouldn't hurt
anything for other cases.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Fixes: 5797b1c189 ("workqueue: Implement system-wide nr_active enforcement for unbound workqueues")
Link: https://lore.kernel.org/dm-devel/20240410084531.2134621-1-shinichiro.kawasaki@wdc.com/
Signed-off-by: Tejun Heo <tj@kernel.org>
2024-04-23 17:32:59 -10:00
Waiman Long
04d63da4da cgroup/cpuset: Fix incorrect top_cpuset flags
Commit 8996f93fc3 ("cgroup/cpuset: Statically initialize more
members of top_cpuset") uses an incorrect "<" relational operator for
the CS_SCHED_LOAD_BALANCE bit when initializing the top_cpuset. This
results in load_balancing turned off by default in the top cpuset which
is bad for performance.

Fix this by using the BIT() helper macro to set the desired top_cpuset
flags and avoid similar mistake from being made in the future.

Fixes: 8996f93fc3 ("cgroup/cpuset: Statically initialize more members of top_cpuset")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2024-04-23 17:31:18 -10:00
Jack Xiao
9482552820 drm/amdgpu/mes: fix use-after-free issue
Delete fence fallback timer to fix the ramdom
use-after-free issue.

v2: move to amdgpu_mes.c

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-23 23:23:46 -04:00
Alex Deucher
9792b7cc18 drm/amdgpu/sdma5.2: use legacy HDP flush for SDMA2/3
This avoids a potential conflict with firmwares with the newer
HDP flush mechanism.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-04-23 23:23:46 -04:00
Prike Liang
fe93b0927b drm/amdgpu: Fix the ring buffer size for queue VM flush
Here are the corrections needed for the queue ring buffer size
calculation for the following cases:
- Remove the KIQ VM flush ring usage.
- Add the invalidate TLBs packet for gfx10 and gfx11 queue.
- There's no VM flush and PFP sync, so remove the gfx9 real
  ring and compute ring buffer usage.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-23 23:23:46 -04:00
Mukul Joshi
1e214f7faa drm/amdkfd: Add VRAM accounting for SVM migration
Do VRAM accounting when doing migrations to vram to make sure
there is enough available VRAM and migrating to VRAM doesn't evict
other possible non-unified memory BOs. If migrating to VRAM fails,
driver can fall back to using system memory seamlessly.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-23 23:23:45 -04:00
Lijo Lazar
30d1cda8ce drm/amd/pm: Restore config space after reset
During mode-2 reset, pci config space registers are affected at device
side. However, certain platforms have switches which assign virtual BAR
addresses and returns the same even after device is reset. This
affects pci_restore_state() as it doesn't issue another config write, if
the value read is same as the saved value.

Add a workaround to write saved config space values from driver side.
Presently, these switches are in platforms with SMU v13.0.6 SOCs, hence
restrict the workaround only to those.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-23 23:23:45 -04:00
Lang Yu
661d71ee5a drm/amdgpu/umsch: don't execute umsch test when GPU is in reset/suspend
umsch test needs full GPU functionality(e.g., VM update, TLB flush,
possibly buffer moving under memory pressure) which may be not ready
under these states. Just skip it to avoid potential issues.

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Veerabadhran Gopalakrishnan <Veerabadhran.Gopalakrishnan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-04-23 23:23:28 -04:00
Felix Kuehling
e26305f369 drm/amdkfd: Fix rescheduling of restore worker
Handle the case that the restore worker was already scheduled by another
eviction while the restore was in progress.

Fixes: 9a1c1339ab ("drm/amdkfd: Run restore_workers on freezable WQs")
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Tested-by: Yunxiang Li <Yunxiang.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-04-23 23:23:28 -04:00
Felix Kuehling
b0b13d5321 drm/amdgpu: Update BO eviction priorities
Make SVM BOs more likely to get evicted than other BOs. These BOs
opportunistically use available VRAM, but can fall back relatively
seamlessly to system memory. It also avoids SVM migrations evicting
other, more important BOs as they will evict other SVM allocations
first.

Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Acked-by: Mukul Joshi <mukul.joshi@amd.com>
Tested-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-23 23:23:28 -04:00
Peyton Lee
d59198d2d0 drm/amdgpu/vpe: fix vpe dpm setup failed
The vpe dpm settings should be done before firmware is loaded.
Otherwise, the frequency cannot be successfully raised.

Signed-off-by: Peyton Lee <peytolee@amd.com>
Reviewed-by: Lang Yu <lang.yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-23 23:23:02 -04:00
Lijo Lazar
aebd3eb9d3 drm/amdgpu: Assign correct bits for SDMA HDP flush
HDP Flush request bit can be kept unique per AID, and doesn't need to be
unique SOC-wide. Assign only bits 10-13 for SDMA v4.4.2.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-04-23 23:22:54 -04:00
Ma Jun
0e95ed6452 drm/amdgpu/pm: Remove gpu_od if it's an empty directory
gpu_od should be removed if it's an empty directory

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reported-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Suggested-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-04-23 23:22:46 -04:00
Lang Yu
9c783a1121 drm/amdkfd: make sure VM is ready for updating operations
When page table BOs were evicted but not validated before
updating page tables, VM is still in evicting state,
amdgpu_vm_update_range returns -EBUSY and
restore_process_worker runs into a dead loop.

v2: Split the BO validation and page table update into two
separate loops in amdgpu_amdkfd_restore_process_bos. (Felix)
  1.Validate BOs
  2.Validate VM (and DMABuf attachments)
  3.Update page tables for the BOs validated above

Fixes: 50661eb1a2 ("drm/amdgpu: Auto-validate DMABuf imports in compute VMs")
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-04-23 23:22:23 -04:00
Greg Kroah-Hartman
7732ce06ed IIO: 1st set of new device support, features and cleanup for 6.10
The Analog Device team (Paul Cercueil and Nuno Sa) have been working on
 improving high speed device handling. They have had some support in their
 own tree for many years, so it is great to see them bring it to upstream.
 Some of that is seen here, with the first output device using the
 IIO dmaengine infrastructure and a new DAC backend FPGA IP driver.
 This makes use of a new set of interfaces to allow backend and
 front end driver communication in a fashion that in theory at least
 allows for a single driver for a given ADC / DAC independent of
 the IP to which is being used to deal with the data bus and DMA aspects
 of working with these devices. It is early days for this new
 generic way of handling split devices, but as it's kernel internals only
 we can merrily change anything about it as a wider diversity of devices
 show up and we get a better feel for what works.
 
 Alongside the usual set of new drivers and features we have
 the automatic cleanup of fwnode_handle_put() which didn't quite make
 it in last cycle. The equivalent DT version was merged by Rob Herring
 via the DT binding tree and one patch using that in IIO can also be
 found in this pull request. Rob has been making extensive use of that
 infrastructure in the DT core which is good to see and provides more
 evidence this basic approach is useful.
 
 In some cases, the IIO driver was converted over from DT only to
 using the generic firmware description handling of property.h
 including using the new macros. The general preference for IIO
 is to use this more generic handling where possible - a bunch of other
 drivers have been converted this cycle as well.
 
 New device support
 ==================
 
 adi,ad7173
 - New driver supporting AD7172-2, AD7172-4 AD7173-9, AD7175-2, AD7175-8,
   AD7176-2 and AD7177-2 ADCs.
 - Follow up fix for an accidental use of logic not instead of bitwise.
 
 adi,ad7944
 - New driver supporting AD7944, AD7985 and AD7986 pin compatible ADCs.
 - Later patch added use of new spi_optimize_message() to reduce overheads
   of setting up a reused message.
 - Additional changes later in series reduced code duplication.
 
 adi,ad9739a RF DAC
 - New driver for this 14-bit 2.5 GSPS DAC via an LVDS interface.
 
 adi,axi-dac
 - Support for this FPGA IP used to send data to high performance DACs over
   an interface such as JESD204B/C or parallel interfaces.  Used in
   conjunction with a DAC driver. The initial user is the ad9739a.
   The dmaengine-buffer needed various changes to make it bidirectional.
 
 avago,apds9306
 - New driver for this ambient light sensor.
 - Fix much later in this pull for an off by 1 error.
 
 New device IDs
 ==============
 
 For these at most an ID and a instance of chip specific data was needed.
 Always nice to see manufacturers sticking to an existing software interface
 for new parts.
 
 allwinner,sun20i
 - Add support for h616.
 invensense,mpu6050
 - Add support for ICM42688
 maxim,max30102
 - Add compatible for MAX30101
 ti,dac5571
 - Add compatible for DAC081C081
 
 General
 =======
 
 fwnode_handle
 - Support for cleanup.h based __free(fwnode_handle)
 - Loop macro using this for looping over child nodes without needing to
   call fwnode_handle_put() in ever early exit from the loop.
 - Used in:
   * adi,ad3552r
   * adi,ad4130
   * adi,ad5770r
   * adi,ad74413r
   * adi,ad7173
   * adi,adfm2000
   * linear,ltc2688
   * linear,ltc2983
   * maxim,max11410
   * microchip,pac1934
   * qcom,spmi-adc
   * renesas,rz2gl
   * st,ab8500
   * st,stm32 (Fix for failure to set return value precedes this patch,
     providing an example of why enabling direct returns makes bugs
     less likely)
 - Conversions to fwnode also using the cleanup logic
   * adi,ad7124
   * adi,ad7292
   * freescale,fsl-imx25-gcq
 
 - Other conversions to fwnode where the new cleanup handling isn't useful
   * adi,ad7192
   * avia,hx711
   * freescale,mma8452
   * nxp,fxls8962af
   * st,spear
   * ti,twl4030
 
 Features
 ========
 
 adi,adxl345
 - Support SPI_3WIRE mode.
 
 adi,ad9944
 - Support 3-wire mode, note this isn't normal 3-wire SPI (unlike the
   adxl345 change above), but rather   a wiring scheme where the SPI
   chip select is used to trigger conversions rather than using a
   separate pin.
 - Add some device specific documentation, mostly around the various wiring
   schemes.
 
 invensense,mpu6050
 - Add Wake on Motion support as an IIO event and as a wake-up source.
 
 linear,ltc2983
 - Add vdd-supply.
 
 ti,hdc3020
 - Add power management using trigger on demand mode and adding suspend and
   resume handling.
 - Use reset GPIO if available.
 
 Cleanup and fixes
 ================
 
 iio core
 - Use the various autocleanup and lock guards from cleanup.h to simplify
   the IIO core.
 - Don't set the pointer used for iio_priv() if it is zero sized as that
   points beyond the end of the allocation. No driver actually uses it
   in that case but good to clean this up.
 
 various drivers
 - Drop unnecessary casts of other pointer types to void *
 
 docs
 - Add missing ABI entry for in_temp_input.
 
 adi,adx345
 - General cleanup prior to adding spi-3wire mode.
 
 adi,axi-adc
 - Be more flexible and allow minor version changes as these are expected
   to be backwards compatible.
 
 avago,apds9300/9600
 - Merge near identical bindings. The drivers are quite different, but
   the bindings can be shared. The apds9306 binding introduced in this
   series uses this shared binding doc as well.
 - Add missing vdd-supply
 - Update binding to use IRQ_TYPE_LEVEL_LOW instead of 8.
 
 bosch,bmp280
 - Organize headers
 
 freescale,fxl-imx25-gcq
 - Use devm_ for remaining probe() time setup allowing dropping
   of specific error handling and remove() functions.
 
 infineon,dps310
 - Fix handling of negative temperatures
 - Bring style of other similar calls inline with the form needed
   for temperatures
 - Ensure error handling of regmap calls is consistent within the driver.
 - Simplify scale reading logic.
 
 invensense,mpu6050
 - Flip logic in binding to exclude devices without i2c-gate instead
   of opting in.  The list is expected to be much shorter as all recent
   devices support this feature.
 
 honeywell,hsc030pa
 - Use spi_read() instead of opening coding.
 
 renesas,rcar
 - Use device_for_each_child_of_node_scoped() to remove need to manually
   release. Left over from series the rest of which went in during 6.9.
 
 st,ab8500
 - Fix naming of function parameters in kernel-doc
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEbilms4eEBlKRJoGxVIU0mcT0FogFAmYmqVoRHGppYzIzQGtl
 cm5lbC5vcmcACgkQVIU0mcT0FogSaw/6A+8IHq9ox5wo9g2UUajFVXi6ToSs3DTv
 Dwi5OsPmuoimj8DDyxz6xuq/F6zbo+tbkVpbz7eu4L8/QNk07wgwyQrp7Z5EhVgx
 dAHxWOCrhKbkGzvcfyy+Epzvc1ETplfIZ6KdxgcB+k092jtQDknp9Os7NvAWYQp4
 7zFM1kptUe/Bnwe8oaTOfjtvl3kPTH0++yANE30r76PCD0Ra5v2MKHRNhtx3q0Et
 D02MDQWjvjT3+HbfT7ft8CtMAFqlj5t8KneS9KUlXsifupLnQrZIx3rjL7ooACIb
 aJVb0Vj3nQMlVlijH38jbxPI6z5OX230ySfX1mQXEzAkBouaWM6k9xcSzMC/ed/E
 OeiG9b/a0blGkq15bVA/LHh/uQ8MjBYa0SfdbAsvy/I6O73UaEHtzDR4Wua2grCr
 OzLVKvl9032+b9XUge500gH2Veb9OEnN0viRm6ApD+Ew9yRCA2og0OypDAVqvULM
 T/+lTu7MeYAe1K3wGu1PekeC3LK0lX3nGEX0vBybBh6gFUMOHaveoQ0qjy0DLvHn
 3Ua1ZlqZbT3pYe+2oHmV+ErRb7a7Fz5F2SkoqtHjtL6eF8/zHlywNb/l0Yp9FDgB
 W+yd+VrJC/XZOOFv6mcWOvTCK1VtY65cQRPdGbR2KHmIdtUpI0A4NGZ4rdrtD9iS
 TVtGiyb3hos=
 =dr8B
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-6.10a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: 1st set of new device support, features and cleanup for 6.10

The Analog Device team (Paul Cercueil and Nuno Sa) have been working on
improving high speed device handling. They have had some support in their
own tree for many years, so it is great to see them bring it to upstream.
Some of that is seen here, with the first output device using the
IIO dmaengine infrastructure and a new DAC backend FPGA IP driver.
This makes use of a new set of interfaces to allow backend and
front end driver communication in a fashion that in theory at least
allows for a single driver for a given ADC / DAC independent of
the IP to which is being used to deal with the data bus and DMA aspects
of working with these devices. It is early days for this new
generic way of handling split devices, but as it's kernel internals only
we can merrily change anything about it as a wider diversity of devices
show up and we get a better feel for what works.

Alongside the usual set of new drivers and features we have
the automatic cleanup of fwnode_handle_put() which didn't quite make
it in last cycle. The equivalent DT version was merged by Rob Herring
via the DT binding tree and one patch using that in IIO can also be
found in this pull request. Rob has been making extensive use of that
infrastructure in the DT core which is good to see and provides more
evidence this basic approach is useful.

In some cases, the IIO driver was converted over from DT only to
using the generic firmware description handling of property.h
including using the new macros. The general preference for IIO
is to use this more generic handling where possible - a bunch of other
drivers have been converted this cycle as well.

New device support
==================

adi,ad7173
- New driver supporting AD7172-2, AD7172-4 AD7173-9, AD7175-2, AD7175-8,
  AD7176-2 and AD7177-2 ADCs.
- Follow up fix for an accidental use of logic not instead of bitwise.

adi,ad7944
- New driver supporting AD7944, AD7985 and AD7986 pin compatible ADCs.
- Later patch added use of new spi_optimize_message() to reduce overheads
  of setting up a reused message.
- Additional changes later in series reduced code duplication.

adi,ad9739a RF DAC
- New driver for this 14-bit 2.5 GSPS DAC via an LVDS interface.

adi,axi-dac
- Support for this FPGA IP used to send data to high performance DACs over
  an interface such as JESD204B/C or parallel interfaces.  Used in
  conjunction with a DAC driver. The initial user is the ad9739a.
  The dmaengine-buffer needed various changes to make it bidirectional.

avago,apds9306
- New driver for this ambient light sensor.
- Fix much later in this pull for an off by 1 error.

New device IDs
==============

For these at most an ID and a instance of chip specific data was needed.
Always nice to see manufacturers sticking to an existing software interface
for new parts.

allwinner,sun20i
- Add support for h616.
invensense,mpu6050
- Add support for ICM42688
maxim,max30102
- Add compatible for MAX30101
ti,dac5571
- Add compatible for DAC081C081

General
=======

fwnode_handle
- Support for cleanup.h based __free(fwnode_handle)
- Loop macro using this for looping over child nodes without needing to
  call fwnode_handle_put() in ever early exit from the loop.
- Used in:
  * adi,ad3552r
  * adi,ad4130
  * adi,ad5770r
  * adi,ad74413r
  * adi,ad7173
  * adi,adfm2000
  * linear,ltc2688
  * linear,ltc2983
  * maxim,max11410
  * microchip,pac1934
  * qcom,spmi-adc
  * renesas,rz2gl
  * st,ab8500
  * st,stm32 (Fix for failure to set return value precedes this patch,
    providing an example of why enabling direct returns makes bugs
    less likely)
- Conversions to fwnode also using the cleanup logic
  * adi,ad7124
  * adi,ad7292
  * freescale,fsl-imx25-gcq

- Other conversions to fwnode where the new cleanup handling isn't useful
  * adi,ad7192
  * avia,hx711
  * freescale,mma8452
  * nxp,fxls8962af
  * st,spear
  * ti,twl4030

Features
========

adi,adxl345
- Support SPI_3WIRE mode.

adi,ad9944
- Support 3-wire mode, note this isn't normal 3-wire SPI (unlike the
  adxl345 change above), but rather   a wiring scheme where the SPI
  chip select is used to trigger conversions rather than using a
  separate pin.
- Add some device specific documentation, mostly around the various wiring
  schemes.

invensense,mpu6050
- Add Wake on Motion support as an IIO event and as a wake-up source.

linear,ltc2983
- Add vdd-supply.

ti,hdc3020
- Add power management using trigger on demand mode and adding suspend and
  resume handling.
- Use reset GPIO if available.

Cleanup and fixes
================

iio core
- Use the various autocleanup and lock guards from cleanup.h to simplify
  the IIO core.
- Don't set the pointer used for iio_priv() if it is zero sized as that
  points beyond the end of the allocation. No driver actually uses it
  in that case but good to clean this up.

various drivers
- Drop unnecessary casts of other pointer types to void *

docs
- Add missing ABI entry for in_temp_input.

adi,adx345
- General cleanup prior to adding spi-3wire mode.

adi,axi-adc
- Be more flexible and allow minor version changes as these are expected
  to be backwards compatible.

avago,apds9300/9600
- Merge near identical bindings. The drivers are quite different, but
  the bindings can be shared. The apds9306 binding introduced in this
  series uses this shared binding doc as well.
- Add missing vdd-supply
- Update binding to use IRQ_TYPE_LEVEL_LOW instead of 8.

bosch,bmp280
- Organize headers

freescale,fxl-imx25-gcq
- Use devm_ for remaining probe() time setup allowing dropping
  of specific error handling and remove() functions.

infineon,dps310
- Fix handling of negative temperatures
- Bring style of other similar calls inline with the form needed
  for temperatures
- Ensure error handling of regmap calls is consistent within the driver.
- Simplify scale reading logic.

invensense,mpu6050
- Flip logic in binding to exclude devices without i2c-gate instead
  of opting in.  The list is expected to be much shorter as all recent
  devices support this feature.

honeywell,hsc030pa
- Use spi_read() instead of opening coding.

renesas,rcar
- Use device_for_each_child_of_node_scoped() to remove need to manually
  release. Left over from series the rest of which went in during 6.9.

st,ab8500
- Fix naming of function parameters in kernel-doc

* tag 'iio-for-6.10a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (108 commits)
  iio: adc: ti-ads131e08: Use device_for_each_child_node_scoped() to simplify error paths.
  iio: adc: adi-axi-adc: only error out in major version mismatch
  iio: dac: support the ad9739a RF DAC
  iio: dac: add support for AXI DAC IP core
  iio: backend: add new functionality
  dt-bindings: iio: dac: add docs for AD9739A
  dt-bindings: iio: dac: add docs for AXI DAC IP
  iio: buffer-dmaengine: Enable write support
  iio: buffer-dmaengine: Support specifying buffer direction
  iio: buffer-dma: Enable buffer write support
  iio: buffer-dma: Rename iio_dma_buffer_data_available()
  iio: buffer-dma: add iio_dmaengine_buffer_setup()
  iio: pressure: dps310: simplify scale factor reading
  iio: pressure: dps310: consistently check return value of `regmap_read`
  iio: pressure: dps310: introduce consistent error handling
  iio: pressure: dps310: support negative temperature values
  dt-bindings: iio: adc: Add GPADC for Allwinner H616
  iio: dac: ad5755: make use of of_device_id table
  iio: imu: inv_icm42600: add support of ICM-42688-P
  dt-bindings: iio: imu: add icm42688 inside inv_icm42600
  ...
2024-04-23 20:19:37 -07:00
Mukul Joshi
25e9227c6a drm/amdgpu: Fix leak when GPU memory allocation fails
Free the sync object if the memory allocation fails for any
reason.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-04-23 23:17:30 -04:00
Felix Kuehling
37865e02e6 drm/amdkfd: Fix eviction fence handling
Handle case that dma_fence_get_rcu_safe returns NULL.

If restore work is already scheduled, only update its timer. The same
work item cannot be queued twice, so undo the extra queue eviction.

Fixes: 9a1c1339ab ("drm/amdkfd: Run restore_workers on freezable WQs")
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Tested-by: Gang BA <Gang.Ba@amd.com>
Reviewed-by: Gang BA <Gang.Ba@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-04-23 23:17:30 -04:00
Joshua Ashton
2eb9dd497a drm/amd/display: Set color_mgmt_changed to true on unsuspend
Otherwise we can end up with a frame on unsuspend where color management
is not applied when userspace has not committed themselves.

Fixes re-applying color management on Steam Deck/Gamescope on S3 resume.

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-04-23 23:17:29 -04:00
Krishna Kurapati
a160e1202c usb: dwc3: qcom: Add multiport suspend/resume support for wrapper
Power event IRQ is used for wakeup either when the controller is
SuperSpeed capable but is missing an SuperSpeed PHY interrupt, or when
the GIC is not capable of detecting DP/DM High-Speed PHY interrupts.

The Power event IRQ stat register indicates whether the High-Speed
phy entered and exited L2 successfully during suspend and resume.
Indicate the same for all ports of a multiport controller.

Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-10-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Krishna Kurapati
5df44c6f4f usb: dwc3: qcom: Enable wakeup for applicable ports of multiport
DWC3 Qcom wrapper currently supports only wakeup configuration
for single port controllers. Read speed of each port connected
to the controller and enable wakeup for each of them accordingly.

Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-9-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Krishna Kurapati
2bfc9916a0 usb: dwc3: qcom: Refactor IRQ handling in glue driver
On multiport supported controllers, each port has its own DP/DM and
SuperSpeed (if super speed capable) interrupts. As per the bindings,
their interrupt names differ from single-port ones by having a "_x"
added as suffix (x being the port number). Identify from the interrupt
names whether the controller is a multiport controller or not.
Refactor dwc3_qcom_setup_irq() call to parse multiportinterrupts along
with non-multiport ones accordingly.

Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-8-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Krishna Kurapati
6410c8033b usb: dwc3: qcom: Add helper function to request wakeup interrupts
The logic for requesting interrupts is duplicated for each interrupt. In
the upcoming patches that introduces support for multiport, it would be
better to clean up the duplication before reading mulitport related
interrupts.

Refactor interrupt setup call by adding a new helper function for
requesting the wakeup interrupts. To simplify implementation, make
the display name same as the interrupt name expected in Device tree.

Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-7-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Krishna Kurapati
80adfb5404 dt-bindings: usb: qcom,dwc3: Add bindings for SC8280 Multiport
Add the compatible string for SC8280 Multiport USB controller from
Qualcomm.

There are 4 power event interrupts supported by this controller
(one for each port of multiport controller). Add all the 4 as
non-optional interrupts for SC8280XP-MP

Also each port of multiport has one DP and one DM IRQ. Add all DP/DM
IRQs related to 4 ports of SC8280XP Teritiary controller.

Also added SuperSpeed PHY interrupt for both Superspeed ports.

Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-6-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Krishna Kurapati
30a46746ca usb: dwc3: core: Refactor PHY logic to support Multiport Controller
Currently the DWC3 driver supports only single port controller
which requires at least one HS PHY and at most one SS PHY.

But the DWC3 USB controller can be connected to multiple ports and
each port can have their own PHYs. Each port of the multiport
controller can either be HS+SS capable or HS only capable
Proper quantification of them is required to modify GUSB2PHYCFG
and GUSB3PIPECTL registers appropriately.

DWC3 multiport controllers are capable to service at most 15 High Speed
PHYs and 4 Supser Speed PHYs. Add support for detecting, obtaining and
configuring PHYs supported by a multiport controller.

Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-5-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Krishna Kurapati
89d7f96299 usb: dwc3: core: Skip setting event buffers for host only controllers
On some SoC's like SA8295P where the tertiary controller is host-only
capable, GEVTADDRHI/LO, GEVTSIZ, GEVTCOUNT registers are not accessible.
Trying to access them leads to a crash.

For DRD/Peripheral supported controllers, event buffer setup is done
again in gadget_pullup. Skip setup or cleanup of event buffers if
controller is host-only capable.

Suggested-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-4-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Krishna Kurapati
921e109c62 usb: dwc3: core: Access XHCI address space temporarily to read port info
All DWC3 Multi Port controllers that exist today only support host mode.
Temporarily map XHCI address space for host-only controllers and parse
XHCI Extended Capabilities registers to read number of usb2 ports and
usb3 ports present on multiport controller. Each USB Port is at least HS
capable.

The port info for usb2 and usb3 phy are identified as num_usb2_ports
and num_usb3_ports and these are used as iterators for phy operations
and for modifying GUSB2PHYCFG/ GUSB3PIPECTL registers accordingly.

Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-3-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Krishna Kurapati
9cea6c1f54 dt-bindings: usb: Add bindings for multiport properties on DWC3 controller
Add bindings to indicate properties required to support multiport
on Synopsys DWC3 controller.

Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-2-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-23 19:56:09 -07:00
Alexei Starovoitov
6e10b6350a Merge branch 'introduce-bpf_wq'
Benjamin Tissoires says:

====================
Introduce bpf_wq

This is a followup of sleepable bpf_timer[0].

When discussing sleepable bpf_timer, it was thought that we should give
a try to bpf_wq, as the 2 APIs are similar but distinct enough to
justify a new one.

So here it is.

I tried to keep as much as possible common code in kernel/bpf/helpers.c
but I couldn't get away with code duplication in kernel/bpf/verifier.c.

This series introduces a basic bpf_wq support:
- creation is supported
- assignment is supported
- running a simple bpf_wq is also supported.

We will probably need to extend the API further with:
- a full delayed_work API (can be piggy backed on top with a correct
  flag)
- bpf_wq_cancel() <- apparently not, this is shooting ourself in the
  foot
- bpf_wq_cancel_sync() (for sleepable programs)
- documentation
---

For reference, the use cases I have in mind:

---

Basically, I need to be able to defer a HID-BPF program for the
following reasons (from the aforementioned patch):
1. defer an event:
   Sometimes we receive an out of proximity event, but the device can not
   be trusted enough, and we need to ensure that we won't receive another
   one in the following n milliseconds. So we need to wait those n
   milliseconds, and eventually re-inject that event in the stack.

2. inject new events in reaction to one given event:
   We might want to transform one given event into several. This is the
   case for macro keys where a single key press is supposed to send
   a sequence of key presses. But this could also be used to patch a
   faulty behavior, if a device forgets to send a release event.

3. communicate with the device in reaction to one event:
   We might want to communicate back to the device after a given event.
   For example a device might send us an event saying that it came back
   from sleeping state and needs to be re-initialized.

Currently we can achieve that by keeping a userspace program around,
raise a bpf event, and let that userspace program inject the events and
commands.
However, we are just keeping that program alive as a daemon for just
scheduling commands. There is no logic in it, so it doesn't really justify
an actual userspace wakeup. So a kernel workqueue seems simpler to handle.

bpf_timers are currently running in a soft IRQ context, this patch
series implements a sleppable context for them.

Cheers,
Benjamin

[0] https://lore.kernel.org/all/20240408-hid-bpf-sleepable-v6-0-0499ddd91b94@kernel.org/

Changes in v2:
- took previous review into account
- mainly dropped BPF_F_WQ_SLEEPABLE
- Link to v1: https://lore.kernel.org/r/20240416-bpf_wq-v1-0-c9e66092f842@kernel.org

====================

Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-0-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 19:46:57 -07:00
Benjamin Tissoires
8290dba519 selftests/bpf: wq: add bpf_wq_start() checks
Allows to test if allocation/free works

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-16-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 19:46:57 -07:00
Benjamin Tissoires
8e83da9732 bpf: add bpf_wq_start
again, copy/paste from bpf_timer_start().

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-15-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 19:46:57 -07:00
Benjamin Tissoires
01b7b1c5f3 selftests/bpf: add checks for bpf_wq_set_callback()
We assign the callback and set everything up.
The actual tests of these callbacks will be done when bpf_wq_start() is
available.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-14-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 19:46:57 -07:00
Benjamin Tissoires
81f1d7a583 bpf: wq: add bpf_wq_set_callback_impl
To support sleepable async callbacks, we need to tell push_async_cb()
whether the cb is sleepable or not.

The verifier now detects that we are in bpf_wq_set_callback_impl and
can allow a sleepable callback to happen.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-13-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 19:46:57 -07:00
Benjamin Tissoires
e3d9eac99a selftests/bpf: wq: add bpf_wq_init() checks
Allows to test if allocation/free works

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-12-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 19:46:57 -07:00
Benjamin Tissoires
eb48f6cd41 bpf: wq: add bpf_wq_init
We need to teach the verifier about the second argument which is declared
as void * but which is of type KF_ARG_PTR_TO_MAP. We could have dropped
this extra case if we declared the second argument as struct bpf_map *,
but that means users will have to do extra casting to have their program
compile.

We also need to duplicate the timer code for the checking if the map
argument is matching the provided workqueue.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-11-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 19:46:57 -07:00
Benjamin Tissoires
b4abee7c1a selftests/bpf: add bpf_wq tests
We simply try in all supported map types if we can store/load a bpf_wq.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-10-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 19:46:53 -07:00
Hyunwoo Kim
80e679b352 tcp: Fix Use-After-Free in tcp_ao_connect_init
Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal
of tcp_ao_connect_init, is not part of the RCU read critical section, it
is possible that the RCU grace period will pass during the traversal and
the key will be free.

To prevent this, it should be changed to hlist_for_each_entry_safe.

Fixes: 7c2ffaf21b ("net/tcp: Calculate TCP-AO traffic keys")
Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://lore.kernel.org/r/ZiYu9NJ/ClR8uSkH@v4bel-B760M-AORUS-ELITE-AX
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-23 19:06:39 -07:00
Eric Dumazet
1c04b46cbd neighbour: fix neigh_master_filtered()
If we no longer hold RTNL, we must use netdev_master_upper_dev_get_rcu()
instead of netdev_master_upper_dev_get().

Fixes: ba0f780694 ("neighbour: no longer hold RTNL in neigh_dump_info()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20240421185753.1808077-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-23 19:04:50 -07:00
Eric Dumazet
4ce62d5b2f net: usb: ax88179_178a: stop lying about skb->truesize
Some usb drivers try to set small skb->truesize and break
core networking stacks.

In this patch, I removed one of the skb->truesize overide.

I also replaced one skb_clone() by an allocation of a fresh
and small skb, to get minimally sized skbs, like we did
in commit 1e2c611723 ("net: cdc_ncm: reduce skb truesize
in rx path")

Fixes: f8ebb3ac88 ("net: usb: ax88179_178a: Fix packet receiving")
Reported-by: shironeko <shironeko@tesaguri.club>
Closes: https://lore.kernel.org/netdev/c110f41a0d2776b525930f213ca9715c@tesaguri.club/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jose Alonso <joalonsof@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240421193828.1966195-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-23 19:04:17 -07:00
Eric Dumazet
58a4c9b1e5 ipv4: check for NULL idev in ip_route_use_hint()
syzbot was able to trigger a NULL deref in fib_validate_source()
in an old tree [1].

It appears the bug exists in latest trees.

All calls to __in_dev_get_rcu() must be checked for a NULL result.

[1]
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 2 PID: 3257 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
 RIP: 0010:fib_validate_source+0xbf/0x15a0 net/ipv4/fib_frontend.c:425
Code: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 <42> 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf
RSP: 0018:ffffc900015fee40 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0
RDX: 0000000000000000 RSI: 0000000004001eac RDI: ffff8880160c64c0
RBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000
R10: 0000000000000002 R11: ffff88800f4f90c0 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000
FS:  00007f938acfe6c0(0000) GS:ffff888058c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
  ip_route_use_hint+0x410/0x9b0 net/ipv4/route.c:2231
  ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327
  ip_list_rcv_finish net/ipv4/ip_input.c:612 [inline]
  ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638
  ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:673
  __netif_receive_skb_list_ptype net/core/dev.c:5572 [inline]
  __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620
  __netif_receive_skb_list net/core/dev.c:5672 [inline]
  netif_receive_skb_list_internal+0x9f9/0xdc0 net/core/dev.c:5764
  netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816
  xdp_recv_frames net/bpf/test_run.c:257 [inline]
  xdp_test_run_batch net/bpf/test_run.c:335 [inline]
  bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363
  bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376
  bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c:3736
  __sys_bpf+0x45c/0x710 kernel/bpf/syscall.c:5115
  __do_sys_bpf kernel/bpf/syscall.c:5201 [inline]
  __se_sys_bpf kernel/bpf/syscall.c:5199 [inline]
  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199

Fixes: 02b2494161 ("ipv4: use dst hint for ipv4 list receive")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240421184326.1704930-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-23 19:02:57 -07:00
Eric Dumazet
3584718cf2 net: fix sk_memory_allocated_{add|sub} vs softirqs
Jonathan Heathcote reported a regression caused by blamed commit
on aarch64 architecture.

x86 happens to have irq-safe __this_cpu_add_return()
and __this_cpu_sub(), but this is not generic.

I think my confusion came from "struct sock" argument,
because these helpers are called with a locked socket.
But the memory accounting is per-proto (and per-cpu after
the blamed commit). We might cleanup these helpers later
to directly accept a "struct proto *proto" argument.

Switch to this_cpu_add_return() and this_cpu_xchg()
operations, and get rid of preempt_disable()/preempt_enable() pairs.

Fast path becomes a bit faster as a result :)

Many thanks to Jonathan Heathcote for his awesome report and
investigations.

Fixes: 3cd3399dd7 ("net: implement per-cpu reserves for memory_allocated")
Reported-by: Jonathan Heathcote <jonathan.heathcote@bbc.co.uk>
Closes: https://lore.kernel.org/netdev/VI1PR01MB42407D7947B2EA448F1E04EFD10D2@VI1PR01MB4240.eurprd01.prod.exchangelabs.com/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Link: https://lore.kernel.org/r/20240421175248.1692552-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-23 19:02:24 -07:00
Benjamin Tissoires
246331e3f1 bpf: allow struct bpf_wq to be embedded in arraymaps and hashmaps
Currently bpf_wq_cancel_and_free() is just a placeholder as there is
no memory allocation for bpf_wq just yet.

Again, duplication of the bpf_timer approach

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-9-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 18:31:25 -07:00
Benjamin Tissoires
d940c9b94d bpf: add support for KF_ARG_PTR_TO_WORKQUEUE
Introduce support for KF_ARG_PTR_TO_WORKQUEUE. The kfuncs will use bpf_wq
as argument and that will be recognized as workqueue argument by verifier.
bpf_wq_kern casting can happen inside kfunc, but using bpf_wq in
argument makes life easier for users who work with non-kern type in BPF
progs.

Duplicate process_timer_func into process_wq_func.
meta argument is only needed to ensure bpf_wq_init's workqueue and map
arguments are coming from the same map (map_uid logic is necessary for
correct inner-map handling), so also amend check_kfunc_args() to
match what helpers functions check is doing.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-8-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 18:31:25 -07:00
Benjamin Tissoires
ad2c03e691 bpf: verifier: bail out if the argument is not a map
When a kfunc is declared with a KF_ARG_PTR_TO_MAP, we should have
reg->map_ptr set to a non NULL value, otherwise, that means that the
underlying type is not a map.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-7-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 18:31:24 -07:00
Benjamin Tissoires
f1d0a2fbb0 tools: sync include/uapi/linux/bpf.h
cp include/uapi/linux/bpf.h tools/include/uapi/linux/bpf.h

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-6-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 18:31:24 -07:00
Benjamin Tissoires
d56b63cf0c bpf: add support for bpf_wq user type
Mostly a copy/paste from the bpf_timer API, without the initialization
and free, as they will be done in a separate patch.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-5-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 18:31:24 -07:00
Benjamin Tissoires
fc22d9495f bpf: replace bpf_timer_cancel_and_free with a generic helper
Same reason than most bpf_timer* functions, we need almost the same for
workqueues.
So extract the generic part out of it so bpf_wq_cancel_and_free can reuse
it.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-4-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 18:31:24 -07:00
Benjamin Tissoires
073f11b026 bpf: replace bpf_timer_set_callback with a generic helper
In the same way we have a generic __bpf_async_init(), we also need
to share code between timer and workqueue for the set_callback call.

We just add an unused flags parameter, as it will be used for workqueues.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-3-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-04-23 18:31:24 -07:00