Dependent slice segment flag for PPS control is misnamed. It should have
"enabled" at the end. It only tells if this flag is present in slice
header or not and not the actual value.
Fix this by renaming the PPS flag and introduce another flag for slice
control which tells actual value.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Merge tag 'landlock_v34' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull Landlock LSM from James Morris:
"Add Landlock, a new LSM from Mickaël Salaün.
Briefly, Landlock provides for unprivileged application sandboxing.
From Mickaël's cover letter:
"The goal of Landlock is to enable to restrict ambient rights (e.g.
global filesystem access) for a set of processes. Because Landlock
is a stackable LSM [1], it makes possible to create safe security
sandboxes as new security layers in addition to the existing
system-wide access-controls. This kind of sandbox is expected to
help mitigate the security impact of bugs or unexpected/malicious
behaviors in user-space applications. Landlock empowers any
process, including unprivileged ones, to securely restrict
themselves.
Landlock is inspired by seccomp-bpf but instead of filtering
syscalls and their raw arguments, a Landlock rule can restrict the
use of kernel objects like file hierarchies, according to the
kernel semantic. Landlock also takes inspiration from other OS
sandbox mechanisms: XNU Sandbox, FreeBSD Capsicum or OpenBSD
Pledge/Unveil.
In this current form, Landlock misses some access-control features.
This enables to minimize this patch series and ease review. This
series still addresses multiple use cases, especially with the
combined use of seccomp-bpf: applications with built-in sandboxing,
init systems, security sandbox tools and security-oriented APIs [2]"
The cover letter and v34 posting is here:
https://lore.kernel.org/linux-security-module/20210422154123.13086-1-mic@digikod.net/
See also:
https://landlock.io/
This code has had extensive design discussion and review over several
years"
Link: https://lore.kernel.org/lkml/50db058a-7dde-441b-a7f9-f6837fe8b69f@schaufler-ca.com/ [1]
Link: https://lore.kernel.org/lkml/f646e1c7-33cf-333f-070c-0a40ad0468cd@digikod.net/ [2]
* tag 'landlock_v34' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
landlock: Enable user space to infer supported features
landlock: Add user and kernel documentation
samples/landlock: Add a sandbox manager example
selftests/landlock: Add user space tests
landlock: Add syscall implementations
arch: Wire up Landlock syscalls
fs,security: Add sb_delete hook
landlock: Support filesystem access-control
LSM: Infrastructure management of the superblock
landlock: Add ptrace restrictions
landlock: Set up the security framework and manage credentials
landlock: Add ruleset and domain management
landlock: Add object management
Core:
- bpf:
- allow bpf programs calling kernel functions (initially to
reuse TCP congestion control implementations)
- enable task local storage for tracing programs - remove the
need to store per-task state in hash maps, and allow tracing
programs access to task local storage previously added for
BPF_LSM
- add bpf_for_each_map_elem() helper, allowing programs to
walk all map elements in a more robust and easier to verify
fashion
- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
redirection
- lpm: add support for batched ops in LPM trie
- add BTF_KIND_FLOAT support - mostly to allow use of BTF
on s390 which has floats in its headers files
- improve BPF syscall documentation and extend the use of kdoc
parsing scripts we already employ for bpf-helpers
- libbpf, bpftool: support static linking of BPF ELF files
- improve support for encapsulation of L2 packets
- xdp: restructure redirect actions to avoid a runtime lookup,
improving performance by 4-8% in microbenchmarks
- xsk: build skb by page (aka generic zerocopy xmit) - improve
performance of software AF_XDP path by 33% for devices
which don't need headers in the linear skb part (e.g. virtio)
- nexthop: resilient next-hop groups - improve path stability
on next-hops group changes (incl. offload for mlxsw)
- ipv6: segment routing: add support for IPv4 decapsulation
- icmp: add support for RFC 8335 extended PROBE messages
- inet: use bigger hash table for IP ID generation
- tcp: deal better with delayed TX completions - make sure we don't
give up on fast TCP retransmissions only because driver is
slow in reporting that it completed transmitting the original
- tcp: reorder tcp_congestion_ops for better cache locality
- mptcp:
- add sockopt support for common TCP options
- add support for common TCP msg flags
- include multiple address ids in RM_ADDR
- add reset option support for resetting one subflow
- udp: GRO L4 improvements - improve 'forward' / 'frag_list'
co-existence with UDP tunnel GRO, allowing the first to take
place correctly even for encapsulated UDP traffic
- micro-optimize dev_gro_receive() and flow dissection, avoid
retpoline overhead on VLAN and TEB GRO
- use less memory for sysctls, add a new sysctl type, to allow using
u8 instead of "int" and "long" and shrink networking sysctls
- veth: allow GRO without XDP - this allows aggregating UDP
packets before handing them off to routing, bridge, OvS, etc.
- allow specifing ifindex when device is moved to another namespace
- netfilter:
- nft_socket: add support for cgroupsv2
- nftables: add catch-all set element - special element used
to define a default action in case normal lookup missed
- use net_generic infra in many modules to avoid allocating
per-ns memory unnecessarily
- xps: improve the xps handling to avoid potential out-of-bound
accesses and use-after-free when XPS change race with other
re-configuration under traffic
- add a config knob to turn off per-cpu netdev refcnt to catch
underflows in testing
Device APIs:
- add WWAN subsystem to organize the WWAN interfaces better and
hopefully start driving towards more unified and vendor-
-independent APIs
- ethtool:
- add interface for reading IEEE MIB stats (incl. mlx5 and
bnxt support)
- allow network drivers to dump arbitrary SFP EEPROM data,
current offset+length API was a poor fit for modern SFP
which define EEPROM in terms of pages (incl. mlx5 support)
- act_police, flow_offload: add support for packet-per-second
policing (incl. offload for nfp)
- psample: add additional metadata attributes like transit delay
for packets sampled from switch HW (and corresponding egress
and policy-based sampling in the mlxsw driver)
- dsa: improve support for sandwiched LAGs with bridge and DSA
- netfilter:
- flowtable: use direct xmit in topologies with IP
forwarding, bridging, vlans etc.
- nftables: counter hardware offload support
- Bluetooth:
- improvements for firmware download w/ Intel devices
- add support for reading AOSP vendor capabilities
- add support for virtio transport driver
- mac80211:
- allow concurrent monitor iface and ethernet rx decap
- set priority and queue mapping for injected frames
- phy: add support for Clause-45 PHY Loopback
- pci/iov: add sysfs MSI-X vector assignment interface
to distribute MSI-X resources to VFs (incl. mlx5 support)
New hardware/drivers:
- dsa: mv88e6xxx: add support for Marvell mv88e6393x -
11-port Ethernet switch with 8x 1-Gigabit Ethernet
and 3x 10-Gigabit interfaces.
- dsa: support for legacy Broadcom tags used on BCM5325, BCM5365
and BCM63xx switches
- Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches
- ath11k: support for QCN9074 a 802.11ax device
- Bluetooth: Broadcom BCM4330 and BMC4334
- phy: Marvell 88X2222 transceiver support
- mdio: add BCM6368 MDIO mux bus controller
- r8152: support RTL8153 and RTL8156 (USB Ethernet) chips
- mana: driver for Microsoft Azure Network Adapter (MANA)
- Actions Semi Owl Ethernet MAC
- can: driver for ETAS ES58X CAN/USB interfaces
Pure driver changes:
- add XDP support to: enetc, igc, stmmac
- add AF_XDP support to: stmmac
- virtio:
- page_to_skb() use build_skb when there's sufficient tailroom
(21% improvement for 1000B UDP frames)
- support XDP even without dedicated Tx queues - share the Tx
queues with the stack when necessary
- mlx5:
- flow rules: add support for mirroring with conntrack,
matching on ICMP, GTP, flex filters and more
- support packet sampling with flow offloads
- persist uplink representor netdev across eswitch mode
changes
- allow coexistence of CQE compression and HW time-stamping
- add ethtool extended link error state reporting
- ice, iavf: support flow filters, UDP Segmentation Offload
- dpaa2-switch:
- move the driver out of staging
- add spanning tree (STP) support
- add rx copybreak support
- add tc flower hardware offload on ingress traffic
- ionic:
- implement Rx page reuse
- support HW PTP time-stamping
- octeon: support TC hardware offloads - flower matching on ingress
and egress ratelimitting.
- stmmac:
- add RX frame steering based on VLAN priority in tc flower
- support frame preemption (FPE)
- intel: add cross time-stamping freq difference adjustment
- ocelot:
- support forwarding of MRP frames in HW
- support multiple bridges
- support PTP Sync one-step timestamping
- dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
learning, flooding etc.
- ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
SC7280 SoCs)
- mt7601u: enable TDLS support
- mt76:
- add support for 802.3 rx frames (mt7915/mt7615)
- mt7915 flash pre-calibration support
- mt7921/mt7663 runtime power management fixes
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- bpf:
- allow bpf programs calling kernel functions (initially to
reuse TCP congestion control implementations)
- enable task local storage for tracing programs - remove the
need to store per-task state in hash maps, and allow tracing
programs access to task local storage previously added for
BPF_LSM
- add bpf_for_each_map_elem() helper, allowing programs to walk
all map elements in a more robust and easier to verify fashion
- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
redirection
- lpm: add support for batched ops in LPM trie
- add BTF_KIND_FLOAT support - mostly to allow use of BTF on
s390 which has floats in its headers files
- improve BPF syscall documentation and extend the use of kdoc
parsing scripts we already employ for bpf-helpers
- libbpf, bpftool: support static linking of BPF ELF files
- improve support for encapsulation of L2 packets
- xdp: restructure redirect actions to avoid a runtime lookup,
improving performance by 4-8% in microbenchmarks
- xsk: build skb by page (aka generic zerocopy xmit) - improve
performance of software AF_XDP path by 33% for devices which don't
need headers in the linear skb part (e.g. virtio)
- nexthop: resilient next-hop groups - improve path stability on
next-hops group changes (incl. offload for mlxsw)
- ipv6: segment routing: add support for IPv4 decapsulation
- icmp: add support for RFC 8335 extended PROBE messages
- inet: use bigger hash table for IP ID generation
- tcp: deal better with delayed TX completions - make sure we don't
give up on fast TCP retransmissions only because driver is slow in
reporting that it completed transmitting the original
- tcp: reorder tcp_congestion_ops for better cache locality
- mptcp:
- add sockopt support for common TCP options
- add support for common TCP msg flags
- include multiple address ids in RM_ADDR
- add reset option support for resetting one subflow
- udp: GRO L4 improvements - improve 'forward' / 'frag_list'
co-existence with UDP tunnel GRO, allowing the first to take place
correctly even for encapsulated UDP traffic
- micro-optimize dev_gro_receive() and flow dissection, avoid
retpoline overhead on VLAN and TEB GRO
- use less memory for sysctls, add a new sysctl type, to allow using
u8 instead of "int" and "long" and shrink networking sysctls
- veth: allow GRO without XDP - this allows aggregating UDP packets
before handing them off to routing, bridge, OvS, etc.
- allow specifing ifindex when device is moved to another namespace
- netfilter:
- nft_socket: add support for cgroupsv2
- nftables: add catch-all set element - special element used to
define a default action in case normal lookup missed
- use net_generic infra in many modules to avoid allocating
per-ns memory unnecessarily
- xps: improve the xps handling to avoid potential out-of-bound
accesses and use-after-free when XPS change race with other
re-configuration under traffic
- add a config knob to turn off per-cpu netdev refcnt to catch
underflows in testing
Device APIs:
- add WWAN subsystem to organize the WWAN interfaces better and
hopefully start driving towards more unified and vendor-
independent APIs
- ethtool:
- add interface for reading IEEE MIB stats (incl. mlx5 and bnxt
support)
- allow network drivers to dump arbitrary SFP EEPROM data,
current offset+length API was a poor fit for modern SFP which
define EEPROM in terms of pages (incl. mlx5 support)
- act_police, flow_offload: add support for packet-per-second
policing (incl. offload for nfp)
- psample: add additional metadata attributes like transit delay for
packets sampled from switch HW (and corresponding egress and
policy-based sampling in the mlxsw driver)
- dsa: improve support for sandwiched LAGs with bridge and DSA
- netfilter:
- flowtable: use direct xmit in topologies with IP forwarding,
bridging, vlans etc.
- nftables: counter hardware offload support
- Bluetooth:
- improvements for firmware download w/ Intel devices
- add support for reading AOSP vendor capabilities
- add support for virtio transport driver
- mac80211:
- allow concurrent monitor iface and ethernet rx decap
- set priority and queue mapping for injected frames
- phy: add support for Clause-45 PHY Loopback
- pci/iov: add sysfs MSI-X vector assignment interface to distribute
MSI-X resources to VFs (incl. mlx5 support)
New hardware/drivers:
- dsa: mv88e6xxx: add support for Marvell mv88e6393x - 11-port
Ethernet switch with 8x 1-Gigabit Ethernet and 3x 10-Gigabit
interfaces.
- dsa: support for legacy Broadcom tags used on BCM5325, BCM5365 and
BCM63xx switches
- Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches
- ath11k: support for QCN9074 a 802.11ax device
- Bluetooth: Broadcom BCM4330 and BMC4334
- phy: Marvell 88X2222 transceiver support
- mdio: add BCM6368 MDIO mux bus controller
- r8152: support RTL8153 and RTL8156 (USB Ethernet) chips
- mana: driver for Microsoft Azure Network Adapter (MANA)
- Actions Semi Owl Ethernet MAC
- can: driver for ETAS ES58X CAN/USB interfaces
Pure driver changes:
- add XDP support to: enetc, igc, stmmac
- add AF_XDP support to: stmmac
- virtio:
- page_to_skb() use build_skb when there's sufficient tailroom
(21% improvement for 1000B UDP frames)
- support XDP even without dedicated Tx queues - share the Tx
queues with the stack when necessary
- mlx5:
- flow rules: add support for mirroring with conntrack, matching
on ICMP, GTP, flex filters and more
- support packet sampling with flow offloads
- persist uplink representor netdev across eswitch mode changes
- allow coexistence of CQE compression and HW time-stamping
- add ethtool extended link error state reporting
- ice, iavf: support flow filters, UDP Segmentation Offload
- dpaa2-switch:
- move the driver out of staging
- add spanning tree (STP) support
- add rx copybreak support
- add tc flower hardware offload on ingress traffic
- ionic:
- implement Rx page reuse
- support HW PTP time-stamping
- octeon: support TC hardware offloads - flower matching on ingress
and egress ratelimitting.
- stmmac:
- add RX frame steering based on VLAN priority in tc flower
- support frame preemption (FPE)
- intel: add cross time-stamping freq difference adjustment
- ocelot:
- support forwarding of MRP frames in HW
- support multiple bridges
- support PTP Sync one-step timestamping
- dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
learning, flooding etc.
- ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
SC7280 SoCs)
- mt7601u: enable TDLS support
- mt76:
- add support for 802.3 rx frames (mt7915/mt7615)
- mt7915 flash pre-calibration support
- mt7921/mt7663 runtime power management fixes"
* tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2451 commits)
net: selftest: fix build issue if INET is disabled
net: netrom: nr_in: Remove redundant assignment to ns
net: tun: Remove redundant assignment to ret
net: phy: marvell: add downshift support for M88E1240
net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
net/sched: act_ct: Remove redundant ct get and check
icmp: standardize naming of RFC 8335 PROBE constants
bpf, selftests: Update array map tests for per-cpu batched ops
bpf: Add batched ops support for percpu array
bpf: Implement formatted output helpers with bstr_printf
seq_file: Add a seq_bprintf function
sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
net: fix a concurrency bug in l2tp_tunnel_register()
net/smc: Remove redundant assignment to rc
mpls: Remove redundant assignment to err
llc2: Remove redundant assignment to rc
net/tls: Remove redundant initialization of record
rds: Remove redundant assignment to nr_sig
dt-bindings: net: mdio-gpio: add compatible for microchip,mdio-smi0
...
well contained to Documentation/ itself. Highlights include:
- The Chinese translators have been busy and show no signs of stopping
anytime soon. Italian has also caught up.
- Aditya Srivastava has been working on improvements to the kernel-doc
script.
- Thorsten continues his work on reporting-issues.rst and related
documentation around regression reporting.
- Lots of documentation updates, typo fixes, etc. as usual
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Merge tag 'docs-5.13' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It's been a relatively busy cycle in docsland, though more than
usually well contained to Documentation/ itself. Highlights include:
- The Chinese translators have been busy and show no signs of
stopping anytime soon. Italian has also caught up.
- Aditya Srivastava has been working on improvements to the
kernel-doc script.
- Thorsten continues his work on reporting-issues.rst and related
documentation around regression reporting.
- Lots of documentation updates, typo fixes, etc. as usual"
* tag 'docs-5.13' of git://git.lwn.net/linux: (139 commits)
docs/zh_CN: add openrisc translation to zh_CN index
docs/zh_CN: add openrisc index.rst translation
docs/zh_CN: add openrisc todo.rst translation
docs/zh_CN: add openrisc openrisc_port.rst translation
docs/zh_CN: add core api translation to zh_CN index
docs/zh_CN: add core-api index.rst translation
docs/zh_CN: add core-api irq index.rst translation
docs/zh_CN: add core-api irq irqflags-tracing.rst translation
docs/zh_CN: add core-api irq irq-domain.rst translation
docs/zh_CN: add core-api irq irq-affinity.rst translation
docs/zh_CN: add core-api irq concepts.rst translation
docs: sphinx-pre-install: don't barf on beta Sphinx releases
scripts: kernel-doc: improve parsing for kernel-doc comments syntax
docs/zh_CN: two minor fixes in zh_CN/doc-guide/
Documentation: dev-tools: Add Testing Overview
docs/zh_CN: add translations in zh_CN/dev-tools/gcov
docs: reporting-issues: make people CC the regressions list
MAINTAINERS: add regressions mailing list
doc:it_IT: align Italian documentation
docs/zh_CN: sync reporting-issues.rst
...
Here is the big set of tty and serial driver updates for 5.13-rc1.
Actually busy this release, with a number of cleanups happening:
- much needed core tty cleanups by Jiri Slaby
- removal of unused and orphaned old-style serial drivers. If
anyone shows up with this hardware, it is trivial to restore
these but we really do not think they are in use anymore.
- fixes and cleanups from Johan Hovold on a number of termios
setting corner cases that loads of drivers got wrong as well
as removing unneeded code due to tty core changes from long
ago that were never propagated out to the drivers
- loads of platform-specific serial port driver updates and
fixes
- coding style cleanups and other small fixes and updates all
over the tty/serial tree.
All of these have been in linux-next for a while now with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty and serial driver updates from Greg KH:
"Here is the big set of tty and serial driver updates for 5.13-rc1.
Actually busy this release, with a number of cleanups happening:
- much needed core tty cleanups by Jiri Slaby
- removal of unused and orphaned old-style serial drivers. If anyone
shows up with this hardware, it is trivial to restore these but we
really do not think they are in use anymore.
- fixes and cleanups from Johan Hovold on a number of termios setting
corner cases that loads of drivers got wrong as well as removing
unneeded code due to tty core changes from long ago that were never
propagated out to the drivers
- loads of platform-specific serial port driver updates and fixes
- coding style cleanups and other small fixes and updates all over
the tty/serial tree.
All of these have been in linux-next for a while now with no reported
issues"
* tag 'tty-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (186 commits)
serial: extend compile-test coverage
serial: stm32: add FIFO threshold configuration
dt-bindings: serial: 8250: update TX FIFO trigger level
dt-bindings: serial: stm32: override FIFO threshold properties
dt-bindings: serial: add RX and TX FIFO properties
serial: xilinx_uartps: drop low-latency workaround
serial: vt8500: drop low-latency workaround
serial: timbuart: drop low-latency workaround
serial: sunsu: drop low-latency workaround
serial: sifive: drop low-latency workaround
serial: txx9: drop low-latency workaround
serial: sa1100: drop low-latency workaround
serial: rp2: drop low-latency workaround
serial: rda: drop low-latency workaround
serial: owl: drop low-latency workaround
serial: msm_serial: drop low-latency workaround
serial: mpc52xx_uart: drop low-latency workaround
serial: meson: drop low-latency workaround
serial: mcf: drop low-latency workaround
serial: lpc32xx_hs: drop low-latency workaround
...
Here is the big set of staging and IIO driver updates for 5.13-rc1.
Lots of little churn in here, and some larger churn as well. Major
things are:
- removal of wimax drivers, no one has this hardware anymore for
this failed "experiment".
- removal of the Google gasket driver, turns out no one wanted
to maintain it or cares about it anymore, so they asked for it
to be removed.
- comedi finally moves out of the staging directory into
drivers/comedi/ This is one of the oldest kernel subsystems
around, being created in the 2.0 kernel days, and was one of
the first things added to drivers/staging/ when that was
created over 15 years ago. It should have been moved out of
staging a long time ago, it's well maintained and used by
loads of different devices in the real world every day. Nice
to see this finally happen.
- so many tiny coding style cleanups it's not funny. Perfect
storm of at least 2 different intern project application
deadlines combined to provide a huge number of new
contributions in this area from people learning how to do
kernel development. Great job to everyone involved here.
There's also the normal updates for IIO drivers with new IIO drivers and
updates all over that subsystem.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver updates from Greg KH:
"Here is the big set of staging and IIO driver updates for 5.13-rc1.
Lots of little churn in here, and some larger churn as well. Major
things are:
- removal of wimax drivers, no one has this hardware anymore for this
failed "experiment".
- removal of the Google gasket driver, turns out no one wanted to
maintain it or cares about it anymore, so they asked for it to be
removed.
- comedi finally moves out of the staging directory into drivers/comedi
This is one of the oldest kernel subsystems around, being created
in the 2.0 kernel days, and was one of the first things added to
drivers/staging/ when that was created over 15 years ago.
It should have been moved out of staging a long time ago, it's well
maintained and used by loads of different devices in the real world
every day. Nice to see this finally happen.
- so many tiny coding style cleanups it's not funny.
Perfect storm of at least 2 different intern project application
deadlines combined to provide a huge number of new contributions in
this area from people learning how to do kernel development. Great
job to everyone involved here.
There's also the normal updates for IIO drivers with new IIO drivers
and updates all over that subsystem.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (907 commits)
staging: octeon: Use 'for_each_child_of_node'
Staging: rtl8723bs: rtw_xmit: fixed tabbing issue
staging: rtl8188eu: remove unused function parameters
staging: rtl8188eu: cmdThread is a task_struct
staging: rtl8188eu: remove constant variable and dead code
staging: rtl8188eu: change bLeisurePs' type to bool
staging: rtl8723bs: remove empty #ifdef block
staging: rtl8723bs: remove unused DBG_871X_LEVEL macro declarations
staging: rtl8723bs: split too long line
staging: rtl8723bs: fix indentation in if block
staging: rtl8723bs: fix code indent issue
staging: rtl8723bs: replace DBG_871X_LEVEL logs with netdev_*()
staging: rtl8192e: indent statement properly
staging: rtl8723bs: Remove led_blink_hdl() and everything related
staging: comedi: move out of staging directory
staging: rtl8723bs: remove sdio_drv_priv structure
staging: rtl8723bs: remove unused argument in function
staging: rtl8723bs: remove DBG_871X_SEL_NL macro declaration
staging: rtl8723bs: replace DBG_871X_SEL_NL with netdev_dbg()
staging: rtl8723bs: fix indentation issue introduced by long line split
...
Add a first document describing userspace API: how to define and enforce
a Landlock security policy. This is explained with a simple example.
The Landlock system calls are described with their expected behavior and
current limitations.
Another document is dedicated to kernel developers, describing guiding
principles and some important kernel structures.
This documentation can be built with the Sphinx framework.
Cc: James Morris <jmorris@namei.org>
Cc: Jann Horn <jannh@google.com>
Cc: Serge E. Hallyn <serge@hallyn.com>
Signed-off-by: Mickaël Salaün <mic@linux.microsoft.com>
Reviewed-by: Vincent Dagonneau <vincent.dagonneau@ssi.gouv.fr>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210422154123.13086-13-mic@digikod.net
Signed-off-by: James Morris <jamorris@linux.microsoft.com>
The rx-arb-lost error injection command only works with <op> set to 'any'.
Explicitly say so in the usage message.
Also use [] to indicate that the <poll> argument is optional.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Long Term Reference (LTR) frames are the frames that are encoded
sometime in the past and stored in the DPB buffer list to be used
as reference to encode future frames.
This change adds controls to enable this feature.
Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
:c:type:`struct v4l2_requestbuffers` should be
struct :c:type:`v4l2_requestbuffers`.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The VIDIOC_G/S/TRY_EXT_CTRLS documentation has large explanatory texts for
some of the fields in a table. This makes it hard to read. Move those text
to a new cell spanning the whole width of the table, similar to what was
done for struct v4l2_pix_format. This makes it much more readable.
Also move the 'ctrl_class' description to below the 'which' description and
just mention that it is deprecated and that 'which' should be used instead.
Finally remove 'note::' for the V4L2_CTRL_WHICH_DEF_VAL description. It
doesn't have to be marked as a note, it's just a simple paragraph.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The _FRAME_SKIP_ enums were missing the _VIDEO prefix.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The media bus bit width of MEDIA_BUS_FMT_RGB101010_1X30 is 30.
So, 'Bit31' and 'Bit30' cells for the 'MEDIA_BUS_FMT_RGB101010_1X30'
row should be spaces instead of '0's.
Fixes: 54f38fcae5 ("media: docs: move uAPI book to userspace-api/media")
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The added format is V4L2_PIX_FMT_YUV24, this is a packed
YUV 4:4:4 format, with 8 bits for each component, 24 bits
per sample.
This format is used by the i.MX 8QuadMax and i.MX 8DualXPlus/8QuadXPlus
JPEG encoder/decoder.
Signed-off-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The documentation for V4L2_CID_MPEG_VIDEO_BITRATE was missing the word
'Average': this is the average video bitrate.
The V4L2_CID_MPEG_VIDEO_BITRATE_PEAK documentation *does* refer to
V4L2_CID_MPEG_VIDEO_BITRATE as the average video bitrate.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Until now, the VP8 V4L2 API was not exported as a public API,
and only defined in a private media header (media/vp8-ctrls.h).
The reason for this was a concern about the API not complete
and ready to support VP8 decoding hardware accelerators.
After reviewing the VP8 specification in detail, and now
that the API is able to support Cedrus and Hantro G1,
we can consider this ready.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Since we are ready to stabilize the VP8 stateless API,
move the parsed VP8 pixel format.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Rename to struct v4l2_vp8_loop_filter, which is closer to the
VP8 syntax. This change is only cosmetics, but since this API
is exposed to userspace, it's worth the trouble to get it consistent.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
It doesn't seem to add any clarity to have a "header" suffix in controls,
struct names and flags.
Since this just makes names too long without any benefit, just drop it.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add a control to enable inserting of AUD NALU into encoded
bitstream.
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Deprecate mfc private display delay and display enable controls for
new clients and use the standard controls instead.
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Make display delay and display delay enable MFC controls standard v4l
controls. This will allow reuse of the controls for other decoder
drivers. Also the new proposed controls are now codec agnostic because
they could be used for any codec.
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The Microsoft Surface Book series devices consist of a so-called
clipboard part (containing the CPU, touchscreen, and primary battery)
and a base part (containing keyboard, secondary battery, and optional
discrete GPU). These parts can be separated, i.e. the clipboard can be
detached and used as tablet.
This detachment process is initiated by pressing a button. On the
Surface Book 2 and 3 (targeted with this commit), the Surface Aggregator
Module (i.e. the embedded controller on those devices) attempts to send
a notification to any listening client driver and waits for further
instructions (i.e. whether the detachment process should continue or be
aborted). If it does not receive a response in a certain time-frame, the
detachment process (by default) continues and the clipboard can be
physically separated. In other words, (by default and) without a driver,
the detachment process takes about 10 seconds to complete.
This commit introduces a driver for this detachment system (called DTX).
This driver allows a user-space daemon to control and influence the
detachment behavior. Specifically, it forwards any detachment requests
to user-space, allows user-space to make such requests itself, and
allows handling of those requests. Requests can be handled by either
aborting, continuing/allowing, or delaying (i.e. resetting the timeout
via a heartbeat commend). The user-space API is implemented via the
/dev/surface/dtx miscdevice.
In addition, user-space can change the default behavior on timeout from
allowing detachment to disallowing it, which is useful if the (optional)
discrete GPU is in use.
Furthermore, this driver allows user-space to receive notifications
about the state of the base, specifically when it is physically removed
(as opposed to detachment requested), in what manner it is connected
(i.e. in reverse-/tent-/studio- or laptop-mode), and what type of base
is connected. Based on this information, the driver also provides a
simple tablet-mode switch (aliasing all modes without keyboard access,
i.e. tablet-mode and studio-mode to its reported tablet-mode).
An implementation of such a user-space daemon, allowing configuration of
detachment behavior via scripts (e.g. safely unmounting USB devices
connected to the base before continuing) can be found at [1].
[1]: https://github.com/linux-surface/surface-dtx-daemon
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20210308184819.437438-2-luzmaximilian@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Currently, only the 'i' 0x90 ioctl() actually exists and is defined in
'include/uapi/linux/iio/events.h'.
It's the IIO_GET_EVENT_FD_IOCTL, which is used to retrieve and FD for
reading events from an IIO device.
We will want to add more ioct() numbers, so with this change the 'i'
0x90-0x9F space is reserved for IIO ioctl() calls.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210215104043.91251-8-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
As some hardware have a knob to enable or disable emulation prevention
bytes removal, driver writers ended up wondering what exactly the
START_CODE_NONE modes meant in this regards. This patch clarify what is
expected with a reference to the specification.
Reported-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Sphinx doesn't allow placing those cross-reference identifies
everywhere. Misplacing them cause those warnings:
Documentation/userspace-api/media/v4l/hist-v4l2.rst:818: WARNING: undefined label: control-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/hist-v4l2.rst:853: WARNING: undefined label: reserved-formats (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/pixfmt-v4l2.rst:47: WARNING: undefined label: reserved-formats (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/subdev-formats.rst:39: WARNING: undefined label: v4l2-subdev-mbus-code-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/subdev-formats.rst:53: WARNING: undefined label: v4l2-subdev-mbus-code-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/subdev-formats.rst:67: WARNING: undefined label: v4l2-subdev-mbus-code-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/subdev-formats.rst:83: WARNING: undefined label: v4l2-subdev-mbus-code-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/subdev-formats.rst:97: WARNING: undefined label: v4l2-subdev-mbus-code-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/subdev-formats.rst:140: WARNING: undefined label: v4l2-subdev-mbus-code-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-decoder-cmd.rst:75: WARNING: undefined label: decoder-cmds (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-dqevent.rst:234: WARNING: undefined label: control-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-g-dv-timings.rst:156: WARNING: undefined label: dv-bt-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst:41: WARNING: undefined label: ctrl-class (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst:246: WARNING: undefined label: ctrl-class (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst:269: WARNING: undefined label: ctrl-class (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-g-modulator.rst💯 WARNING: undefined label: modulator-txsubchans (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-g-tuner.rst:119: WARNING: undefined label: tuner-rxsubchans (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst:167: WARNING: undefined label: control-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst:245: WARNING: undefined label: control-flags (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst:396: WARNING: undefined label: ctrl-class (if the link has no caption the label must precede a section header)
Documentation/userspace-api/media/v4l/vidioc-subdev-enum-mbus-code.rst:73: WARNING: undefined label: v4l2-subdev-mbus-code-flags (if the link has no caption the label must precede a section header)
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
It makes more sense to place the xvideo example at the body,
keeping the footnote only to justify the design decision.
While this makes the text better, it also fixes the PDF
output.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
There are lots of tables that are not properly displayed
in LaTeX/PDF.
Fix the tablecolumns, add longtable where needed and LaTeX
formatting macros, in order to address such issues.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add missing format macros for the tables there to be properly
output.
While here, also remove the empty ".. note::" markup.
It should be noticed that ".. [1]" markups will generate footnotes,
and not a note within the main text body.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The Picture Parameter Set Flags table for H-264 doesn't output
well on PDF. There are missing format instructions for LaTeX, and
the columns are too long.
Reduce the size of the second column, as 16 bits is more than enough
for the current flags usage, and add the needed bits for it to be
properly output in PDF format.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Sphinx/LaTeX doesn't work well with literal blocks.
Due to that, V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF ends
being writing outside the table (and even outside the page).
We need to not only change the table size and font size, but
also to change the message, in order to avoid this bug.
So, improve the text a little bit, while ensuring that the
literal will be written at the beginning of the second line.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The bayer formats have a subtitle, specifying how many bits
they use. Add a title markup to those, as otherwise they
look weird, specially at the PDF output.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The text is repeating the name of the control, which causes
it to be displayed outside the page with PDF output.
Besides that, this is the only JPEG control doing that. Removing
the name duplication doesn't affect the description, but, instead,
make it nicer.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Those tables nicely fits on PDF output without any hack.
Yet, they are using a very small font, and have tabularcolumns.
Clean it up, and convert it to an ASCII artwork, as it
makes easier to see that no hacks are needed to display it ;-)
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Instead of using "- 1", use "minus one".
The reason is that, if the table is split like:
V4L2_FWHT_FL_COMPONENTS_NUM_MSK 0x00070000 The number of color components
- 1.
One might not realize the meaning of the second line.
As a side effect, using text instead of arabic numbers is
more appropriate for formal documents like this spec.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
While fixing issues with PDF generation, I noticed that
bit 8 was missing for WSS 625 format.
While here, convert the literal block into a tables,
as it becomes more visible.
I opted to move the payload into a separate table, as
Sphinx has troubles with complex nested tables.
This way, it should work fine on both html and LaTeX/PDF
formats.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The default way to document control enums is via tables.
Use one here too. As the table is simple, just use ASCII
artwork.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Those tables have small cells that fit nicely without requiring
line beaks.
So, they don't need tabular columns, as Sphinx/LaTeX
can adjust the width on such tables.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The Cyclades driver was orphaned by commit d459883e6c (MAINTAINERS:
remove two dead e-mail) 13 years ago. Noone stepped up to take care of
them and to fix all the issues the driver has.
On the top of that, there is no way to obtain the firmware for Z cards
from the vendor as cyclades.com ceased to exist.
So it's time to drop the driver with all its traces.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210302062214.29627-5-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexei Starovoitov says:
====================
pull-request: bpf-next 2021-03-09
The following pull-request contains BPF updates for your *net-next* tree.
We've added 90 non-merge commits during the last 17 day(s) which contain
a total of 114 files changed, 5158 insertions(+), 1288 deletions(-).
The main changes are:
1) Faster bpf_redirect_map(), from Björn.
2) skmsg cleanup, from Cong.
3) Support for floating point types in BTF, from Ilya.
4) Documentation for sys_bpf commands, from Joe.
5) Support for sk_lookup in bpf_prog_test_run, form Lorenz.
6) Enable task local storage for tracing programs, from Song.
7) bpf_for_each_map_elem() helper, from Yonghong.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
All userspace ioctls major/magic number should be documented in
Documentation/userspace-api/ioctl/ioctl-number.rst, so add
the entry for <linux/nsfs.h>.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrey Vagin <avagin@openvz.org>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20210210182248.18101-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Generate the syscall command reference from the UAPI header file and
include it in the main bpf docs page.
Signed-off-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20210302171947.2268128-15-joe@cilium.io
Here is the large set of char/misc/whatever driver subsystem updates for
5.12-rc1. Over time it seems like this tree is collecting more and more
tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86
maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only reported
issue being a merge conflict in include/linux/mod_devicetable.h that you
will hit in your tree due to the dfl_device_id addition from the fpga
subsystem in here. The resolution should be simple.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc/whatever driver subsystem updates
for 5.12-rc1. Over time it seems like this tree is collecting more and
more tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86 maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only
reported issue being a merge conflict due to the dfl_device_id
addition from the fpga subsystem in here"
* tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits)
spmi: spmi-pmic-arb: Fix hw_irq overflow
Documentation: coresight: Add PID tracing description
coresight: etm-perf: Support PID tracing for kernel at EL2
coresight: etm-perf: Clarify comment on perf options
ACRN: update MAINTAINERS: mailing list is subscribers-only
regmap: sdw-mbq: use MODULE_LICENSE("GPL")
regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ
regmap: sdw: use _no_pm functions in regmap_read/write
soundwire: intel: fix possible crash when no device is detected
MAINTAINERS: replace my with email with replacements
mhi: Fix double dma free
uapi: map_to_7segment: Update example in documentation
uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED
drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue
firewire: replace tricky statement by two simple ones
vme: make remove callback return void
firmware: google: make coreboot driver's remove callback return void
firmware: xilinx: Use explicit values for all enum values
sample/acrn: Introduce a sample of HSM ioctl interface usage
virt: acrn: Introduce an interface for Service VM to control vCPU
...
Introduce an initial driver for CXL 2.0 Type-3 Memory Devices. CXL is
Compute Express Link which released the 2.0 specification in November.
The Linux relevant changes in CXL 2.0 are support for an OS to
dynamically assign address space to memory devices, support for
switches, persistent memory, and hotplug. A Type-3 Memory Device is a
PCI enumerated device presenting the CXL Memory Device Class Code and
implementing the CXL.mem protocol. CXL.mem allows device to advertise
CPU and I/O coherent memory to the system, i.e. typical "System RAM" and
"Persistent Memory" in Linux /proc/iomem terms.
In addition to the CXL.mem fast path there is an administrative command
hardware mailbox interface for maintenance and provisioning. It is this
command interface that is the focus of the initial driver. With this
driver a CXL device that is mapped by the BIOS can be administered by
Linux. Linux support for CXL PMEM and dynamic CXL address space
management are to be implemented post v5.12.
4cdadfd5e0 cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
8adaf747c9 cxl/mem: Find device capabilities
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
b39cb1052a cxl/mem: Register CXL memX devices
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
13237183c7 cxl/mem: Add a "RAW" send command
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
472b1ce6e9 cxl/mem: Enable commands via CEL
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
57ee605b97 cxl/mem: Add set of informational commands
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Merge tag 'cxl-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull initial support for CXL (Compute Express Link) from Dan Williams:
"Introduce an initial driver for CXL 2.0 Type-3 Memory Devices.
CXL is Compute Express Link which released the 2.0 specification in
November. The Linux relevant changes in CXL 2.0 are support for an OS
to dynamically assign address space to memory devices, support for
switches, persistent memory, and hotplug.
A Type-3 Memory Device is a PCI enumerated device presenting the CXL
Memory Device Class Code and implementing the CXL.mem protocol.
CXL.mem allows device to advertise CPU and I/O coherent memory to the
system, i.e. typical "System RAM" and "Persistent Memory" in Linux
/proc/iomem terms.
In addition to the CXL.mem fast path there is an administrative
command hardware mailbox interface for maintenance and provisioning.
It is this command interface that is the focus of the initial driver.
With this driver a CXL device that is mapped by the BIOS can be
administered by Linux.
Linux support for CXL PMEM and dynamic CXL address space management
are to be implemented post v5.12"
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
4cdadfd5e0 ("cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints")
13237183c7 ("cxl/mem: Add a "RAW" send command")
472b1ce6e9 ("cxl/mem: Enable commands via CEL")
57ee605b97 ("cxl/mem: Add set of informational commands")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
8adaf747c9 ("cxl/mem: Find device capabilities")
b39cb1052a ("cxl/mem: Register CXL memX devices")
* tag 'cxl-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
cxl/mem: Fix potential memory leak
cxl/mem: Return -EFAULT if copy_to_user() fails
MAINTAINERS: Add maintainers of the CXL driver
cxl/mem: Add set of informational commands
cxl/mem: Enable commands via CEL
cxl/mem: Add a "RAW" send command
cxl/mem: Add basic IOCTL interface
cxl/mem: Register CXL memX devices
cxl/mem: Find device capabilities
cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints
This series consists of the usual driver updates (ufs, ibmvfc,
qla2xxx, hisi_sas, pm80xx) plus the removal of the gdth driver (which
is bound to cause conflicts with a trivial change somewhere). The
only big major rework of note is the one from Hannes trying to clean
up our result handling code in the drivers to make it consistent.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This series consists of the usual driver updates (ufs, ibmvfc,
qla2xxx, hisi_sas, pm80xx) plus the removal of the gdth driver (which
is bound to cause conflicts with a trivial change somewhere).
The only big major rework of note is the one from Hannes trying to
clean up our result handling code in the drivers to make it
consistent"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (194 commits)
scsi: MAINTAINERS: Adjust to reflect gdth scsi driver removal
scsi: ufs: Give clk scaling min gear a value
scsi: lpfc: Fix 'physical' typos
scsi: megaraid_mbox: Fix spelling of 'allocated'
scsi: qla2xxx: Simplify the calculation of variables
scsi: message: fusion: Fix 'physical' typos
scsi: target: core: Change ASCQ for residual write
scsi: target: core: Signal WRITE residuals
scsi: target: core: Set residuals for 4Kn devices
scsi: hisi_sas: Add trace FIFO debugfs support
scsi: hisi_sas: Flush workqueue in hisi_sas_v3_remove()
scsi: hisi_sas: Enable debugfs support by default
scsi: hisi_sas: Don't check .nr_hw_queues in hisi_sas_task_prep()
scsi: hisi_sas: Remove deferred probe check in hisi_sas_v2_probe()
scsi: lpfc: Add auto select on IRQ_POLL
scsi: ncr53c8xx: Fix typos
scsi: lpfc: Fix ancient double free
scsi: qla2xxx: Fix some memory corruption
scsi: qla2xxx: Remove redundant NULL check
scsi: megaraid: Fix ifnullfree.cocci warnings
...
- Microsoft Surface devices System Aggregator Module support
- SW_TABLET_MODE reporting improvements
- thinkpad_acpi keyboard language setting support
- platform / DPTF profile settings support
- Base / userspace API parts merged from Rafael's acpi-platform branch
- thinkpad_acpi and ideapad-laptop support through pdx86
- Remove support for some obsolete Intel MID platforms through merging
of the shared intel-mid-removal branch
- Big cleanup of the ideapad-laptop driver
- Misc. other fixes / new hw support / quirks
The following is an automated git shortlog grouped by driver:
ACPI:
- platform-profile: Fix possible deadlock in platform_profile_remove()
- platform-profile: Introduce object pointers to callbacks
- platform-profile: Drop const qualifier for cur_profile
- platform: Add platform profile support
Documentation:
- Add documentation for new platform_profile sysfs attribute
Documentation/ABI:
- sysfs-platform-ideapad-laptop: conservation_mode attribute
- sysfs-platform-ideapad-laptop: update device attribute paths
Kconfig:
- add missing selects for ideapad-laptop
MAINTAINERS:
- update email address for Henrique de Moraes Holschuh
Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans:
- Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans
Merge remote-tracking branch 'linux-pm/acpi-platform' into review-hans:
- Merge remote-tracking branch 'linux-pm/acpi-platform' into review-hans
Merge tag 'ib-drm-gpio-pdx86-rtc-wdt-v5.12-1' into for-next:
- Merge tag 'ib-drm-gpio-pdx86-rtc-wdt-v5.12-1' into for-next
Move all dell drivers to their own subdirectory:
- Move all dell drivers to their own subdirectory
Platform:
- OLPC: Constify static struct regulator_ops
- OLPC: Specify the enable time
- OLPC: Remove dcon_rdev from olpc_ec_priv
- OLPC: Fix probe error handling
Revert "platform/x86:
- ideapad-laptop: Switch touchpad attribute to be RO"
acer-wmi:
- Don't use ACPI_EXCEPTION()
amd-pmc:
- put device on error paths
- Fix CONFIG_DEBUG_FS check
dell-wmi-sysman:
- fix a NULL pointer dereference
docs:
- driver-api: Add Surface Aggregator subsystem documentation
drm/gma500:
- Get rid of duplicate NULL checks
- Convert to use new SCU IPC API
gpio:
- msic: Remove driver for deprecated platform
- intel-mid: Remove driver for deprecated platform
hp-wmi:
- Disable tablet-mode reporting by default
- Don't log a warning on HPWMI_RET_UNKNOWN_COMMAND errors
i2c-multi-instantiate:
- Don't create platform device for INT3515 ACPI nodes
ideapad-laptop:
- add "always on USB charging" control support
- add keyboard backlight control support
- send notification about touchpad state change to sysfs
- fix checkpatch warnings, more consistent style
- change 'cfg' debugfs file format
- change 'status' debugfs file format
- check for touchpad support in _CFG
- check for Fn-lock support in HALS
- rework is_visible() logic
- rework and create new ACPI helpers
- group and separate (un)related constants into enums
- misc. device attribute changes
- always propagate error codes from device attributes' show() callback
- convert ACPI helpers to return -EIO in case of failure
- use dev_{err,warn} or appropriate variant to display log messages
- use msecs_to_jiffies() helper instead of hand-crafted formula
- use for_each_set_bit() helper to simplify event processing
- use kobj_to_dev()
- use device_{add,remove}_group
- use sysfs_emit()
- add missing call to submodule destructor
- sort includes lexicographically
- use appropriately typed variable to store the return value of ACPI methods
- remove unnecessary NULL checks
- remove unnecessary dev_set_drvdata() call
- DYTC Platform profile support
- Disable touchpad_switch for ELAN0634
intel-vbtn:
- Eval VBDL after registering our notifier
- Add alternative method to enable switches
- Create 2 separate input-devs for buttons and switches
- Rework wakeup handling in notify_handler()
- Drop HP Stream x360 Convertible PC 11 from allow-list
- Support for tablet mode on Dell Inspiron 7352
intel_mid_powerbtn:
- Remove driver for deprecated platform
- Remove driver for deprecated platform
intel_mid_thermal:
- Remove driver for deprecated platform
- Remove driver for deprecated platform
intel_pmt:
- Make INTEL_PMT_CLASS non-user-selectable
intel_pmt_crashlog:
- Add dependency on MFD_INTEL_PMT
intel_pmt_telemetry:
- Add dependency on MFD_INTEL_PMT
intel_scu_ipc:
- Increase virtual timeout from 3 to 5 seconds
intel_scu_wdt:
- Drop mistakenly added const
- Get rid of custom x86 model comparison
- Drop SCU notification
- Move driver from arch/x86
msi-wmi:
- Fix variable 'status' set but not used compiler warning
platform/surface:
- aggregator: Fix access of unaligned value
- Add Surface Hot-Plug driver
- surface3-wmi: Fix variable 'status' set but not used compiler warning
- aggregator: Fix braces in if condition with unlikely() macro
- aggregator: Fix kernel-doc references
- aggregator: fix a kernel-doc markup
- aggregator_cdev: Add comments regarding unchecked allocation size
- aggregator_cdev: Fix access of uninitialized variables
- fix potential integer overflow on shift of a int
- Add Surface ACPI Notify driver
- Add Surface Aggregator user-space interface
- aggregator: Add dedicated bus and device type
- aggregator: Add error injection capabilities
- aggregator: Add trace points
- aggregator: Add event item allocation caching
- aggregator: Add control packet allocation caching
- Add Surface Aggregator subsystem
- SURFACE_PLATFORMS should depend on ACPI
- surface_gpe: Fix non-PM_SLEEP build warnings
platform/x86/intel-uncore-freq:
- Add Sapphire Rapids server support
rtc:
- mrst: Remove driver for deprecated platform
sony-laptop:
- Remove unneeded semicolon
thinkpad_acpi:
- Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on
- Fix 'warning: no previous prototype for' warnings
- Add platform profile support
- fixed warning and incorporated review comments
- rectify length of title underline
- Don't register keyboard_lang unnecessarily
- set keyboard language
- Add P53/73 firmware to fan_quirk_table for dual fan control
- correct palmsensor error checking
tools/power/x86/intel-speed-select:
- Update version to 1.8
- Add new command to get/set TRL
- Add new command turbo-mode
- Set higher of cpuinfo_max_freq or base_frequency
- Set scaling_max_freq to base_frequency
touchscreen_dmi:
- Add info for the Jumper EZpad 7 tablet
- Add swap-x-y quirk for Goodix touchscreen on Estar Beauty HD tablet
watchdog:
- intel-mid_wdt: Postpone IRQ handler registration till SCU is ready
- intel_scu_watchdog: Remove driver for deprecated platform
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Merge tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"Highlights:
- Microsoft Surface devices System Aggregator Module support
- SW_TABLET_MODE reporting improvements
- thinkpad_acpi keyboard language setting support
- platform / DPTF profile settings support:
- Base / userspace API parts merged from Rafael's acpi-platform
branch
- thinkpad_acpi and ideapad-laptop support through pdx86
- Remove support for some obsolete Intel MID platforms through
merging of the shared intel-mid-removal branch
- Big cleanup of the ideapad-laptop driver
- Misc other fixes / new hw support / quirks"
* tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (99 commits)
platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds
platform/surface: aggregator: Fix access of unaligned value
tools/power/x86/intel-speed-select: Update version to 1.8
tools/power/x86/intel-speed-select: Add new command to get/set TRL
tools/power/x86/intel-speed-select: Add new command turbo-mode
Platform: OLPC: Constify static struct regulator_ops
platform/surface: Add Surface Hot-Plug driver
platform/x86: intel_scu_wdt: Drop mistakenly added const
platform/x86: Kconfig: add missing selects for ideapad-laptop
platform/x86: acer-wmi: Don't use ACPI_EXCEPTION()
platform/x86: thinkpad_acpi: Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on
platform/x86: thinkpad_acpi: Fix 'warning: no previous prototype for' warnings
platform/x86: msi-wmi: Fix variable 'status' set but not used compiler warning
platform/surface: surface3-wmi: Fix variable 'status' set but not used compiler warning
platform/x86: Move all dell drivers to their own subdirectory
Documentation/ABI: sysfs-platform-ideapad-laptop: conservation_mode attribute
Documentation/ABI: sysfs-platform-ideapad-laptop: update device attribute paths
platform/x86: ideapad-laptop: add "always on USB charging" control support
platform/x86: ideapad-laptop: add keyboard backlight control support
platform/x86: ideapad-laptop: send notification about touchpad state change to sysfs
...
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Merge tag 'media/v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- some core fixes in VB2 mem2mem support
- some improvements and cleanups in V4L2 async kAPI
- newer controls in V4L2 API for H-264 and HEVC codecs
- allegro-dvt driver was promoted from staging
- new i2c sendor drivers: imx334, ov5648, ov8865
- new automobile camera module: rdacm21
- ipu3 cio2 driver started gained support for some ACPI BIOSes
- new ATSC frontend: MaxLinear mxl692 VSB tuner/demod
- the SMIA/CCS driver gained more support for CSS standard
- several driver fixes, updates and improvements
* tag 'media/v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (362 commits)
media: v4l: async: Fix kerneldoc documentation for async functions
media: i2c: max9271: Add MODULE_* macros
media: i2c: Kconfig: Make MAX9271 a module
media: imx334: 'ret' is uninitialized, should have been PTR_ERR()
media: i2c: Add imx334 camera sensor driver
media: dt-bindings: media: Add bindings for imx334
media: ov8856: Configure sensor for GRBG Bayer for all modes
media: i2c: imx219: Implement V4L2_CID_LINK_FREQ control
media: ov5675: fix vflip/hflip control
media: ipu3-cio2: Build bridge only if ACPI is enabled
media: Remove the legacy v4l2-clk API
media: ov6650: Use the generic clock framework
media: mt9m111: Use the generic clock framework
media: ov9640: Use the generic clock framework
media: pxa_camera: Drop the v4l2-clk clock register
media: mach-pxa: Register the camera sensor fixed-rate clock
media: i2c: imx258: get clock from device properties and enable it via runtime PM
media: i2c: imx258: simplify getting state container
media: i2c: imx258: add support for binding via device tree
media: dt-bindings: media: imx258: add bindings for IMX258 sensor
...
Add a straightforward IOCTL that provides a mechanism for userspace to
query the supported memory device commands. CXL commands as they appear
to userspace are described as part of the UAPI kerneldoc. The command
list returned via this IOCTL will contain the full set of commands that
the driver supports, however, some of those commands may not be
available for use by userspace.
Memory device commands first appear in the CXL 2.0 specification. They
are submitted through a mailbox mechanism specified in the CXL 2.0
specification.
The send command allows userspace to issue mailbox commands directly to
the hardware. The list of available commands to send are the output of
the query command. The driver verifies basic properties of the command
and possibly inspect the input (or output) payload to determine whether
or not the command is allowed (or might taint the kernel).
Reported-by: kernel test robot <lkp@intel.com> # bug in earlier revision
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com> (v2)
Cc: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20210217040958.1354670-5-ben.widawsky@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The VM management interfaces expose several VM operations to ACRN
userspace via ioctls. For example, creating VM, starting VM, destroying
VM and so on.
The ACRN Hypervisor needs to exchange data with the ACRN userspace
during the VM operations. HSM provides VM operation ioctls to the ACRN
userspace and communicates with the ACRN Hypervisor for VM operations
via hypercalls.
HSM maintains a list of User VM. Each User VM will be bound to an
existing file descriptor of /dev/acrn_hsm. The User VM will be
destroyed when the file descriptor is closed.
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yu Wang <yu1.wang@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210207031040.49576-7-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
YUV 4:4:4 is not subsampled, fix this in the docs.
Fixes: da785536e0 ("media: doc: pixfmt-yuv: Move all semi-planar YUV formats to common file")
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Adding userspace support for the MC (Management Complex) means exporting
an ioctl capable device file representing the root resource container.
This new functionality in the fsl-mc bus driver intends to provide
userspace applications an interface to interact with the MC firmware.
Commands that are composed in userspace are sent to the MC firmware
through the FSL_MC_SEND_MC_COMMAND ioctl. By default the implicit MC
I/O portal is used for this operation, but if the implicit one is busy,
a dynamic portal is allocated and then freed upon execution.
The command received through the ioctl interface is checked against a
known whitelist of accepted MC commands. Commands that attempt a change
in hardware configuration will need CAP_NET_ADMIN, while commands used
in debugging do not need it.
Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20210114170752.2927915-4-ciorneiioana@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The gdth driver refers to a SCSI parallel, PCI-only HBA RAID adapter which
was manufactured by the now-defunct ICP Vortex company, later acquired by
Adaptec and superseded by the aacraid series of controllers. The driver
itself would require a major overhaul before any modifications can be
attempted, but seeing that it's unlikely to have any users left it should
rather be removed completely.
Link: https://lore.kernel.org/r/20210113090500.129644-2-hare@suse.de
Cautiously-Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This control indicates the priority id to be applied
to base layer.
[hverkuil: renumbered V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID]
Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Adds bitrate control for all coding layers for h264
same as hevc.
Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
- Adds min/max qp controls for B frame for h264.
- Adds min/max qp controls for I/P/B frames for hevc similar to h264.
- Update valid range of min/max qp for hevc to accommodate 10 bit.
Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add V4L2 controls for controlling CCS lens shading correction as well as
conveying its capabilities.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add two new controls for alternative analogue gain some CCS compliant
camera sensors support.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add V4L2 controls for analogue gain constants required to control
analogue gain. The values are device specific and thus need to be obtained
from the driver.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add user documentation for the CCS driver. This includes e.g. sub-devices
implemented by the driver.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add and document a media entity type for Image Signal Processor devices.
Surprisingly we didn't have one, so add one now. More or less all ISP
drivers should use this type instead of what they currently are using (or
not using anything).
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add a misc-device providing user-space access to the Surface Aggregator
EC, mainly intended for debugging, testing, and reverse-engineering.
This interface gives user-space applications the ability to send
requests to the EC and receive the corresponding responses.
The device-file is managed by a pseudo platform-device and corresponding
driver to avoid dependence on the dedicated bus, allowing it to be
loaded in a minimal configuration.
A python library and scripts to access this device can be found at [1].
[1]: https://github.com/linux-surface/surface-aggregator-module/tree/master/scripts/ssam
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20201221183959.1186143-9-luzmaximilian@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
On modern systems the platform performance, temperature, fan and other
hardware related characteristics are often dynamically configurable. The
profile is often automatically adjusted to the load by some
automatic-mechanism (which may very well live outside the kernel).
These auto platform-adjustment mechanisms often can be configured with
one of several 'platform-profiles', with either a bias towards low-power
consumption or towards performance (and higher power consumption and
thermals).
Introduce a new platform_profile sysfs API which offers a generic API for
selecting the performance-profile of these automatic-mechanisms.
Co-developed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
applications to populate protected regions of user code and data called
enclaves. Once activated, the new hardware protects enclave code and
data from outside access and modification.
Enclaves provide a place to store secrets and process data with those
secrets. SGX has been used, for example, to decrypt video without
exposing the decryption keys to nosy debuggers that might be used to
subvert DRM. Software has generally been rewritten specifically to
run in enclaves, but there are also projects that try to run limited
unmodified software in enclaves."
Most of the functionality is concentrated into arch/x86/kernel/cpu/sgx/
except the addition of a new mprotect() hook to control enclave page
permissions and support for vDSO exceptions fixup which will is used by
SGX enclaves.
All this work by Sean Christopherson, Jarkko Sakkinen and many others.
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Merge tag 'x86_sgx_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SGC support from Borislav Petkov:
"Intel Software Guard eXtensions enablement. This has been long in the
making, we were one revision number short of 42. :)
Intel SGX is new hardware functionality that can be used by
applications to populate protected regions of user code and data
called enclaves. Once activated, the new hardware protects enclave
code and data from outside access and modification.
Enclaves provide a place to store secrets and process data with those
secrets. SGX has been used, for example, to decrypt video without
exposing the decryption keys to nosy debuggers that might be used to
subvert DRM. Software has generally been rewritten specifically to run
in enclaves, but there are also projects that try to run limited
unmodified software in enclaves.
Most of the functionality is concentrated into arch/x86/kernel/cpu/sgx/
except the addition of a new mprotect() hook to control enclave page
permissions and support for vDSO exceptions fixup which will is used
by SGX enclaves.
All this work by Sean Christopherson, Jarkko Sakkinen and many others"
* tag 'x86_sgx_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
x86/sgx: Return -EINVAL on a zero length buffer in sgx_ioc_enclave_add_pages()
x86/sgx: Fix a typo in kernel-doc markup
x86/sgx: Fix sgx_ioc_enclave_provision() kernel-doc comment
x86/sgx: Return -ERESTARTSYS in sgx_ioc_enclave_add_pages()
selftests/sgx: Use a statically generated 3072-bit RSA key
x86/sgx: Clarify 'laundry_list' locking
x86/sgx: Update MAINTAINERS
Documentation/x86: Document SGX kernel architecture
x86/sgx: Add ptrace() support for the SGX driver
x86/sgx: Add a page reclaimer
selftests/x86: Add a selftest for SGX
x86/vdso: Implement a vDSO for Intel SGX enclave call
x86/traps: Attempt to fixup exceptions in vDSO before signaling
x86/fault: Add a helper function to sanitize error code
x86/vdso: Add support for exception fixup in vDSO functions
x86/sgx: Add SGX_IOC_ENCLAVE_PROVISION
x86/sgx: Add SGX_IOC_ENCLAVE_INIT
x86/sgx: Add SGX_IOC_ENCLAVE_ADD_PAGES
x86/sgx: Add SGX_IOC_ENCLAVE_CREATE
x86/sgx: Add an SGX misc driver interface
...
Planar pixel formats are documented in separate files. This duplicates
information, as those formats share comon traits. Consolidate them in a
single file and summarize their descriptions in a single table.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Semi-planar pixel formats are documented in separate files. This
duplicates information, as those formats share comon traits. Consolidate
them in a single file and summarize their descriptions in a single
table.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Luma-only pixel formats are documented in separate files. This
duplicates information, as those formats share comon traits. Consolidate
them in a single file and describe them in a single table.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Document the naming scheme for the existing packed YUV 4:4:4 formats, as
previously done for the RGB formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The 4:4:4 packed YUV formats are documented with a bit-level
representation, which creates a wide table. Switch to a byte-oriented
representation to make it more compact. This prepares for the addition
of formats with more than 8 bits per component, that would make the
table way too wide.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The padding bits are left blank, which look weird in the XYUV format,
and, worse, may lead to the VUYX format to be understand as consuming 3
bytes per pixel. Add 'X' for padding bits as we do for RGB formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The pixfmt-packed-yuv.rst file documents packed YUV 4:4:4 formats, but
is titled generically as "Packed YUV formats". 4:2:2 and 4:1:1 packed
YUV formats are documented in separate files, which can be confusing.
Group all packed YUV formats in pixfmt-packed-yuv.rst, which allows
documenting the 4:2:2 formats in a more concise way.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Document YUV subsampling, including chroma spatial siting, and replace
the siting examples in individual formats by references to the common
documentation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Using '-' to represent padding bits and bytes make text and tables more
difficult to read. Use 'x' and 'X' instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
All formats using 8 bits per component can be described with a byte
granularity instead of a bit granularity without loss of precision. This
makes the corresponding table more compact and easier to read.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The naming scheme for the RGB pixel formats has been developed
organically, and isn't consistent between formats using less than 8 bits
per pixels (mostly stored in 1 or 2 bytes per pixel, except for RGB666
that uses 4 bytes per pixel) and formats with 8 bits per pixel (stored
in 3 or 4 bytes). For the latter category, the names use a components
order convention that is the opposite of the first category, and the
opposite of DRM pixel formats. This has led to lots of confusion in the
past, and would really benefit from being explained more precisely. Do
so, which also prepares for the addition of additional RGB pixels
formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Improve readability of the documentation by adding a section title for
the deprecated formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The packed RGB formats documentation includes a layout table without any
context. This doesn't bring much useful information, and is confusing at
best. Remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
With Sphinx 2.x: those two warnings are produced:
/devel/v4l/docs/sphinx2/Documentation/output/videodev2.h.rst:6: WARNING: undefined label: v4l2-meta-fmt-rk-isp1-params (if the link has no caption the label must precede a section header)
/devel/v4l/docs/sphinx2/Documentation/output/videodev2.h.rst:6: WARNING: undefined label: v4l2-meta-fmt-rk-isp1-stat-3a (if the link has no caption the label must precede a section header)
The reason is that there's no blank line between the two
identifiers.
Fixes: 3f46cac678 ("media: admin-guide/pixfmt-meta-rkisp1.rst: pixfmt reference conforming with macro")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Document V4L2_CTRL_TYPE_FWHT_PARAMS and p_fwht_params. Also
improve the V4L2_PIX_FMT_FWHT_STATELESS description.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add 'struct' to clarify that these are pointers to structs.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Drop the 'bullets' for the HEVC stateless codec documentation.
It doesn't work, and they just show up as asterisks.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Move the documentation for the stateless FWHT codec to
ext-ctrls-codec-stateless.rst since that is the proper place
for the stable stateless API documentation.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The FWHT stateless 'uAPI' was staging and marked explicitly in the
V4L2 specification that it will change and is unstable.
Note that these control IDs were never exported as a public API,
they were only defined at the driver's code.
While not too late, let's rename them is preparation for promoting
the stateless FWHT codec API as a public API.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The v4l2_area struct was not documented in the media documentation,
which meant that references to that struct elsewhere in the documentation
never linked to anything.
[mchehab: remove .. cssclass:: longtable]
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Fix warnings from make htmlddocs:
Documentation/output/videodev2.h.rst:6: WARNING: undefined label: v4l2-meta-fmt-rk-isp1-params (if the link has no caption the label must precede a section header)
Documentation/output/videodev2.h.rst:6: WARNING: undefined label: v4l2-meta-fmt-rk-isp1-stat-3a (if the link has no caption the label must precede a section header)
Fixes: df22026aeb ("media: videodev2.h, v4l2-ioctl: add rkisp1 meta buffer format")
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Now that we've destaged the H264 stateless codec controls,
and with all the pieces in place, update the documentation
and move it to its own section.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
When V4L2_CTRL_TYPE_H264_PRED_WEIGHTS was added, adding a replace
symbol directive in videodev2.h.rst.exceptions was missed.
Now that the control type is destaged, it's important to fix this.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add a new control class to hold the stateless codecs controls
that are ready to be moved out of staging.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
For historical reasons, stateful codec controls are named
as {}_MPEG_{}. While we can't at this point sanely
change all control IDs (such as V4L2_CID_MPEG_VIDEO_VP8_FRAME_HEADER),
we can least change the more meaningful macros such as classes
macros.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
V4L2_CTRL_CLASS_DETECT was never documented here, add it.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Merge tag 'v5.10-rc6' into patchwork
Linux 5.10-rc6
* tag 'v5.10-rc6': (1815 commits)
Linux 5.10-rc6
sock: set sk_err to ee_errno on dequeue from errq
mptcp: fix NULL ptr dereference on bad MPJ
net: openvswitch: fix TTL decrement action netlink message format
perf probe: Change function definition check due to broken DWARF
perf probe: Fix to die_entrypc() returns error correctly
perf stat: Use proper cpu for shadow stats
perf record: Synthesize cgroup events only if needed
perf diff: Fix error return value in __cmd_diff()
perf tools: Update copy of libbpf's hashmap.c
x86/mce: Do not overwrite no_way_out if mce_end() fails
kvm: x86/mmu: Fix get_mmio_spte() on CPUs supporting 5-level PT
KVM: x86: Fix split-irqchip vs interrupt injection window request
KVM: x86: handle !lapic_in_kernel case in kvm_cpu_*_extint
usb: typec: stusb160x: fix power-opmode property with typec-power-opmode
printk: finalize records with trailing newlines
can: af_can: can_rx_unregister(): remove WARN() statement from list operation sanity check
can: m_can: m_can_dev_setup(): add support for bosch mcan version 3.3.0
can: m_can: fix nominal bitiming tseg2 min for version >= 3.1
can: m_can: m_can_open(): remove IRQF_TRIGGER_FALLING from request_threaded_irq()'s flags
...
Drop the doubled word "and".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Drop the doubled word "and".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Jernej Skrabec