linux-yocto/Documentation/driver-api
Nicolin Chen 44abdd1646 vfio: Pass in starting IOVA to vfio_pin/unpin_pages API
The vfio_pin/unpin_pages() so far accepted arrays of PFNs of user IOVA.
Among all three callers, there was only one caller possibly passing in
a non-contiguous PFN list, which is now ensured to have contiguous PFN
inputs too.

Pass in the starting address with "iova" alone to simplify things, so
callers no longer need to maintain a PFN list or to pin/unpin one page
at a time. This also allows VFIO to use more efficient implementations
of pin/unpin_pages.

For now, also update vfio_iommu_type1 to fit this new parameter too,
while keeping its input intact (being user_iova) since we don't want
to spend too much effort swapping its parameters and local variables
at that level.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Acked-by: Eric Farman <farman@linux.ibm.com>
Tested-by: Terrence Xu <terrence.xu@intel.com>
Tested-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Link: https://lore.kernel.org/r/20220723020256.30081-6-nicolinc@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-07-25 13:41:22 -06:00
..
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 cxl/mem: Add the cxl_mem driver 2022-02-08 22:57:32 -08:00
dmaengine dmaengine: Document dmaengine_prep_dma_memset 2022-04-20 17:28:12 +05:30
driver-model Documentation: devres: fix typo in interface list 2022-04-28 12:29:52 -06:00
early-userspace Documentation: Fix intiramfs script name 2021-07-18 23:48:14 +09:00
firmware firmware_loader: Add sysfs nodes to monitor fw_upload 2022-04-26 12:35:55 +02:00
fpga fpga: region: Use standard dev_release for class driver 2021-11-28 14:02:41 -08:00
gpio docs: driver-api: gpio: Fix filename mismatch 2022-06-13 18:12:24 +02:00
hte docs: Move the HTE documentation to driver-api/ 2022-06-09 10:02:47 -06:00
i3c docs: driver-api: i3c: Replace HTTP links with HTTPS ones 2020-07-13 09:32:36 -06:00
iio docs: iio: mark "repeat" sysfs attribute as optional 2021-03-11 20:47:08 +00:00
md
media media: Documentation: mc: Add media_device_{init,cleanup} 2022-05-17 09:18:02 +02:00
mei docs updates for v5.10-rc1 2020-10-16 15:02:21 -07:00
memory-devices Replace HTTP links with HTTPS ones: Documentation/driver-api 2020-06-26 11:09:04 -06:00
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 Add pldmfw library for PLDM firmware update 2020-07-28 17:07:06 -07:00
pm docs: devices.rst: better reference documentation docs 2021-06-17 13:24:36 -06:00
rapidio Replace HTTP links with HTTPS ones: Documentation/driver-api 2020-06-26 11:09:04 -06:00
serial Documentation: tty: move moxa-smartio.rst to tty 2022-04-14 18:24:24 +02:00
soundwire docs: soundwire: fix some identation at stream.rst 2020-09-10 10:49:29 -06:00
surface_aggregator platform-drivers-x86 for v5.14-1 2021-06-30 11:15:39 -07:00
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
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 docs: Move the HTE documentation to driver-api/ 2022-06-09 10:02:47 -06:00
infiniband.rst RDMA/core: Remove FMR pool API 2020-06-02 20:32:53 -03:00
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
isapnp.rst
libata.rst libata: Improve ATA queued command allocation 2022-04-11 09:27:44 +09:00
mailbox.rst docs: move mailbox.txt to driver-api and rename it 2020-06-26 11:33:38 -06:00
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 Documentation/driver-api: ntb: drop doubled word 2020-07-13 11:18:17 -06:00
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 docs: ptp.rst: add support for Renesas (IDT) ClockMatrix 2020-07-17 10:25:21 -07:00
pwm.rst pwm: Document that the pinstate of a disabled PWM isn't reliable 2022-05-20 16:36:07 +02:00
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 Documentation/driver-api: uio-howto: drop doubled word 2020-07-10 14:58:01 +02:00
vfio-mediated-device.rst vfio: Pass in starting IOVA to vfio_pin/unpin_pages API 2022-07-25 13:41:22 -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
w1.rst
xillybus.rst Documentation/driver-api: xillybus: drop doubled word 2020-07-10 14:58:01 +02:00
zorro.rst