linux/Documentation/driver-api
Linus Torvalds d3cf405133 VFIO updates for v6.1-rc1
- Prune private items from vfio_pci_core.h to a new internal header,
    fix missed function rename, and refactor vfio-pci interrupt defines.
    (Jason Gunthorpe)
 
  - Create consistent naming and handling of ioctls with a function per
    ioctl for vfio-pci and vfio group handling, use proper type args
    where available. (Jason Gunthorpe)
 
  - Implement a set of low power device feature ioctls allowing userspace
    to make use of power states such as D3cold where supported.
    (Abhishek Sahu)
 
  - Remove device counter on vfio groups, which had restricted the page
    pinning interface to singleton groups to account for limitations in
    the type1 IOMMU backend.  Document usage as limited to emulated IOMMU
    devices, ie. traditional mdev devices where this restriction is
    consistent.  (Jason Gunthorpe)
 
  - Correct function prefix in hisi_acc driver incurred during previous
    refactoring. (Shameer Kolothum)
 
  - Correct typo and remove redundant warning triggers in vfio-fsl driver.
    (Christophe JAILLET)
 
  - Introduce device level DMA dirty tracking uAPI and implementation in
    the mlx5 variant driver (Yishai Hadas & Joao Martins)
 
  - Move much of the vfio_device life cycle management into vfio core,
    simplifying and avoiding duplication across drivers.  This also
    facilitates adding a struct device to vfio_device which begins the
    introduction of device rather than group level user support and fills
    a gap allowing userspace identify devices as vfio capable without
    implicit knowledge of the driver. (Kevin Tian & Yi Liu)
 
  - Split vfio container handling to a separate file, creating a more
    well defined API between the core and container code, masking IOMMU
    backend implementation from the core, allowing for an easier future
    transition to an iommufd based implementation of the same.
    (Jason Gunthorpe)
 
  - Attempt to resolve race accessing the iommu_group for a device
    between vfio releasing DMA ownership and removal of the device from
    the IOMMU driver.  Follow-up with support to allow vfio_group to
    exist with NULL iommu_group pointer to support existing userspace
    use cases of holding the group file open.  (Jason Gunthorpe)
 
  - Fix error code and hi/lo register manipulation issues in the hisi_acc
    variant driver, along with various code cleanups. (Longfang Liu)
 
  - Fix a prior regression in GVT-g group teardown, resulting in
    unreleased resources. (Jason Gunthorpe)
 
  - A significant cleanup and simplification of the mdev interface,
    consolidating much of the open coded per driver sysfs interface
    support into the mdev core. (Christoph Hellwig)
 
  - Simplification of tracking and locking around vfio_groups that
    fall out from previous refactoring. (Jason Gunthorpe)
 
  - Replace trivial open coded f_ops tests with new helper.
    (Alex Williamson)
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Merge tag 'vfio-v6.1-rc1' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

* tag 'vfio-v6.1-rc1' of https://github.com/awilliam/linux-vfio: (77 commits)
  vfio: More vfio_file_is_group() use cases
  vfio: Make the group FD disassociate from the iommu_group
  vfio: Hold a reference to the iommu_group in kvm for SPAPR
  vfio: Add vfio_file_is_group()
  vfio: Change vfio_group->group_rwsem to a mutex
  vfio: Remove the vfio_group->users and users_comp
  vfio/mdev: add mdev available instance checking to the core
  vfio/mdev: consolidate all the description sysfs into the core code
  vfio/mdev: consolidate all the available_instance sysfs into the core code
  vfio/mdev: consolidate all the name sysfs into the core code
  vfio/mdev: consolidate all the device_api sysfs into the core code
  vfio/mdev: remove mtype_get_parent_dev
  vfio/mdev: remove mdev_parent_dev
  vfio/mdev: unexport mdev_bus_type
  vfio/mdev: remove mdev_from_dev
  vfio/mdev: simplify mdev_type handling
  vfio/mdev: embedd struct mdev_parent in the parent data structure
  vfio/mdev: make mdev.h standalone includable
  drm/i915/gvt: simplify vgpu configuration management
  drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types
  ...
2022-10-12 14:46:48 -07:00
..
80211 docs: net: 80211: reduce docs build time 2020-10-08 10:41:49 +02:00
acpi Documentation: ACPI: fix error script name 2021-06-17 13:21:48 -06:00
backlight
cxl Documentation: cxl: remove dangling kernel-doc reference 2022-08-05 08:41:02 -07:00
dmaengine dmaengine: remove DMA_MEMCPY_SG once again 2022-06-27 12:01:40 +05:30
driver-model Driver core changes for 6.1-rc1 2022-10-07 17:04:10 -07:00
early-userspace Documentation: Fix intiramfs script name 2021-07-18 23:48:14 +09:00
firmware Driver core / kernfs changes for 6.0-rc1 2022-08-04 11:31:20 -07:00
fpga docs: fpga: mgr: document parse_header() callback 2022-06-24 12:12:24 +08:00
gpio This was a moderately busy cycle for documentation, but nothing all that 2022-08-02 19:24:24 -07:00
hte tegra194-hte.rst: fix reference to its binding 2022-07-07 13:10:00 -06:00
i3c
iio docs: iio: mark "repeat" sysfs attribute as optional 2021-03-11 20:47:08 +00:00
md
media media: avoid use of 'videobuf' 2022-08-29 16:27:18 +02:00
mei docs updates for v5.10-rc1 2020-10-16 15:02:21 -07:00
memory-devices
mmc docs: mmc: update maintainer name and URL 2021-10-28 11:54:54 +02:00
mtd Documentation / MTD: Rename the intel-spi driver 2022-02-14 12:53:10 +00:00
nfc nfc: constify nfc_llc_ops 2021-07-25 09:21:21 +01:00
nvdimm nvdimm/blk: Fix title level 2022-03-23 17:52:33 -07:00
pci PCI/MSI: Move code into a separate directory 2021-12-09 11:52:22 +01:00
phy
pldmfw
pm docs: devices.rst: better reference documentation docs 2021-06-17 13:24:36 -06:00
rapidio
serial tty: serial: document uart_get_console() 2022-07-28 10:37:42 +02:00
soundwire
surface_aggregator platform/surface: aggregator: Allow notifiers to avoid communication on unregistering 2022-06-13 17:25:07 +02:00
thermal docs: driver-api/thermal/intel_dptf: Use copyright symbol 2022-04-05 09:46:06 -06:00
tty Documentation: tty: n_gsm, use power of ReST 2022-04-14 18:24:24 +02:00
usb Docs: usb: update writesize, copy_from_user, usb_fill_bulk_urb, usb_submit_urb 2021-11-17 14:54:58 +01:00
xilinx firmware: xilinx: Remove zynqmp_pm_get_eemi_ops() in IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE) 2021-03-01 12:52:07 +01:00
aperture.rst drm: Implement DRM aperture helpers under video/ 2022-06-27 11:07:55 +02:00
auxiliary_bus.rst Documentation/auxiliary_bus: Move the text into the code 2021-12-03 16:41:50 +01:00
basics.rst docs: basics.rst: avoid duplicated C function declaration 2020-10-15 07:49:45 +02:00
clk.rst
component.rst
connector.rst net/connector: Add const qualifier to cb_id 2020-12-16 11:06:49 -08:00
console.rst
dcdbas.rst
devfreq.rst
device_link.rst docs: device_link.rst: remove duplicated kernel-doc include 2020-10-15 07:49:42 +02:00
device-io.rst dma-buf-map: Rename to iosys-map 2022-02-07 16:35:35 -08:00
dma-buf.rst dma-buf: add dma_fence_unwrap v2 2022-03-25 14:18:28 +01:00
edac.rst
eisa.rst
firewire.rst Documentation: fix firewire.rst ABI file path error 2022-01-20 17:01:32 -07:00
frame-buffer.rst
generic-counter.rst counter: Update documentation for new counter registration functions 2021-12-30 17:44:06 +01:00
hsi.rst
i2c.rst
index.rst drm: Implement DRM aperture helpers under video/ 2022-06-27 11:07:55 +02:00
infiniband.rst
infrastructure.rst docs: infrastructure.rst: exclude device_link_state from device.h 2020-10-15 07:49:46 +02:00
input.rst Input: remove input_polled_dev implementation 2020-12-02 12:35:14 -08:00
interconnect.rst
io_ordering.rst
io-mapping.rst io-mapping: Provide iomap_local variant 2020-11-24 14:42:09 +01:00
ioctl.rst docs: driver-api: avoid using ReST :doc:foo markup 2021-06-17 13:24:37 -06:00
ipmb.rst
ipmi.rst ipmi: Add docs for the IPMI IPMB driver 2021-10-05 06:54:17 -05:00
isa.rst Remove duplicate words inside documentation 2022-09-27 13:21:43 -06:00
isapnp.rst
libata.rst libata: Improve ATA queued command allocation 2022-04-11 09:27:44 +09:00
mailbox.rst
men-chameleon-bus.rst Documentation: document dma device use for mcb 2021-01-11 13:26:13 -07:00
message-based.rst
misc_devices.rst
miscellaneous.rst
mtdnand.rst docs: mtd: Avoid htmldocs warnings 2020-12-10 22:37:32 +01:00
ntb.rst
nvmem.rst doc: nvmem: Update example 2022-02-21 18:00:30 +01:00
parport-lowlevel.rst
pin-control.rst docs/pinctrl: fix the reference to the u300 platform 2021-05-28 02:59:40 +02:00
pps.rst
ptp.rst
pwm.rst pwm: core: Get rid of unused devm_of_pwm_get() 2022-09-19 06:17:05 -07:00
regulator.rst docs: get rid of :c:type explicit declarations for structs 2020-10-15 07:49:40 +02:00
reset.rst docs: add a reset controller chapter to the driver API docs 2020-12-08 10:48:04 -07:00
rfkill.rst
s390-drivers.rst
scsi.rst
slimbus.rst
sm501.rst
spi.rst
switchtec.rst
sync_file.rst
target.rst docs: scsi: target.rst: remove iSCSI transport class kernel-doc markup 2020-10-15 07:49:42 +02:00
uio-howto.rst
vfio-mediated-device.rst vfio/mdev: consolidate all the description sysfs into the core code 2022-10-04 12:06:58 -06:00
vfio-pci-device-specific-driver-acceptance.rst vfio-pci: Provide reviewers and acceptance criteria for variant drivers 2022-03-17 09:57:11 -06:00
vfio.rst vfio: Introduce a vfio_uninit_group_dev() API call 2021-08-11 09:50:10 -06:00
vme.rst vme: move back to staging 2022-06-10 15:38:14 +02:00
w1.rst
xillybus.rst
zorro.rst