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Provide five new operations in the key_type struct that can be used to
provide access to asymmetric key operations. These will be implemented for
the asymmetric key type in a later patch and may refer to a key retained in
RAM by the kernel or a key retained in crypto hardware.
int (*asym_query)(const struct kernel_pkey_params *params,
struct kernel_pkey_query *info);
int (*asym_eds_op)(struct kernel_pkey_params *params,
const void *in, void *out);
int (*asym_verify_signature)(struct kernel_pkey_params *params,
const void *in, const void *in2);
Since encrypt, decrypt and sign are identical in their interfaces, they're
rolled together in the asym_eds_op() operation and there's an operation ID
in the params argument to distinguish them.
Verify is different in that we supply the data and the signature instead
and get an error value (or 0) as the only result on the expectation that
this may well be how a hardware crypto device may work.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Denis Kenzior <denkenz@gmail.com>
Tested-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs updates from Miklos Szeredi:
"A mix of fixes and cleanups"
* tag 'ovl-update-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: automatically enable redirect_dir on metacopy=on
ovl: check whiteout in ovl_create_over_whiteout()
ovl: using posix_acl_xattr_size() to get size instead of posix_acl_to_xattr()
ovl: abstract ovl_inode lock with a helper
ovl: remove the 'locked' argument of ovl_nlink_{start,end}
ovl: relax requirement for non null uuid of lower fs
ovl: fold copy-up helpers into callers
ovl: untangle copy up call chain
ovl: relax permission checking on underlying layers
ovl: fix recursive oi->lock in ovl_link()
vfs: fix FIGETBSZ ioctl on an overlayfs file
ovl: clean up error handling in ovl_get_tmpfile()
ovl: fix error handling in ovl_verify_set_fh()
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Current behavior is to automatically disable metacopy if redirect_dir is
not enabled and proceed with the mount.
If "metacopy=on" mount option was given, then this behavior can confuse the
user: no mount failure, yet metacopy is disabled.
This patch makes metacopy=on imply redirect_dir=on.
The converse is also true: turning off full redirect with redirect_dir=
{off|follow|nofollow} will disable metacopy.
If both metacopy=on and redirect_dir={off|follow|nofollow} is specified,
then mount will fail, since there's no way to correctly resolve the
conflict.
Reported-by: Daniel Walsh <dwalsh@redhat.com>
Fixes: d5791044d2e5 ("ovl: Provide a mount option metacopy=on/off...")
Cc: <stable@vger.kernel.org> # v4.19
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fixes from Rob Herring:
- fix cpu node iterator for powerpc systems
- clarify ARM CPU binding 'capacities-dmips-mhz' property calculations
* tag 'devicetree-fixes-for-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: Fix cpu node iterator to not ignore disabled cpu nodes
dt-bindings: arm: Explain capacities-dmips-mhz calculations in example
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The example contains two values for the capacity currently, 446 in text
and 578 in code. The numbers are all correct but can confuse some of the
readers. This patch tries to explain how the numbers are calculated to
avoid same confusion going forward.
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull stackleak gcc plugin from Kees Cook:
"Please pull this new GCC plugin, stackleak, for v4.20-rc1. This plugin
was ported from grsecurity by Alexander Popov. It provides efficient
stack content poisoning at syscall exit. This creates a defense
against at least two classes of flaws:
- Uninitialized stack usage. (We continue to work on improving the
compiler to do this in other ways: e.g. unconditional zero init was
proposed to GCC and Clang, and more plugin work has started too).
- Stack content exposure. By greatly reducing the lifetime of valid
stack contents, exposures via either direct read bugs or unknown
cache side-channels become much more difficult to exploit. This
complements the existing buddy and heap poisoning options, but
provides the coverage for stacks.
The x86 hooks are included in this series (which have been reviewed by
Ingo, Dave Hansen, and Thomas Gleixner). The arm64 hooks have already
been merged through the arm64 tree (written by Laura Abbott and
reviewed by Mark Rutland and Will Deacon).
With VLAs having been removed this release, there is no need for
alloca() protection, so it has been removed from the plugin"
* tag 'stackleak-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
arm64: Drop unneeded stackleak_check_alloca()
stackleak: Allow runtime disabling of kernel stack erasing
doc: self-protection: Add information about STACKLEAK feature
fs/proc: Show STACKLEAK metrics in the /proc file system
lkdtm: Add a test for STACKLEAK
gcc-plugins: Add STACKLEAK plugin for tracking the kernel stack
x86/entry: Add STACKLEAK erasing the kernel stack at the end of syscalls
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Introduce CONFIG_STACKLEAK_RUNTIME_DISABLE option, which provides
'stack_erasing' sysctl. It can be used in runtime to control kernel
stack erasing for kernels built with CONFIG_GCC_PLUGIN_STACKLEAK.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Alexander Popov <alex.popov@linux.com>
Tested-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
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Add information about STACKLEAK feature to the "Memory poisoning"
section of self-protection.rst.
Signed-off-by: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
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The STACKLEAK feature (initially developed by PaX Team) has the following
benefits:
1. Reduces the information that can be revealed through kernel stack leak
bugs. The idea of erasing the thread stack at the end of syscalls is
similar to CONFIG_PAGE_POISONING and memzero_explicit() in kernel
crypto, which all comply with FDP_RIP.2 (Full Residual Information
Protection) of the Common Criteria standard.
2. Blocks some uninitialized stack variable attacks (e.g. CVE-2017-17712,
CVE-2010-2963). That kind of bugs should be killed by improving C
compilers in future, which might take a long time.
This commit introduces the code filling the used part of the kernel
stack with a poison value before returning to userspace. Full
STACKLEAK feature also contains the gcc plugin which comes in a
separate commit.
The STACKLEAK feature is ported from grsecurity/PaX. More information at:
https://grsecurity.net/
https://pax.grsecurity.net/
This code is modified from Brad Spengler/PaX Team's code in the last
public patch of grsecurity/PaX based on our understanding of the code.
Changes or omissions from the original code are ours and don't reflect
the original grsecurity/PaX code.
Performance impact:
Hardware: Intel Core i7-4770, 16 GB RAM
Test #1: building the Linux kernel on a single core
0.91% slowdown
Test #2: hackbench -s 4096 -l 2000 -g 15 -f 25 -P
4.2% slowdown
So the STACKLEAK description in Kconfig includes: "The tradeoff is the
performance impact: on a single CPU system kernel compilation sees a 1%
slowdown, other systems and workloads may vary and you are advised to
test this feature on your expected workload before deploying it".
Signed-off-by: Alexander Popov <alex.popov@linux.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"I2C has a core bugfix & cleanup as well as an ID addition and
MAINTAINERS update for you"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: add maintainer for IMX LPI2C driver
dt-bindings: i2c: i2c-imx-lpi2c: add imx8qxp compatible string
i2c: Clear client->irq in i2c_device_remove
i2c: Remove unnecessary call to irq_find_mapping
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Add imx8qxp compatible string
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Pull networking fixes from David Miller:
1) BPF verifier fixes from Daniel Borkmann.
2) HNS driver fixes from Huazhong Tan.
3) FDB only works for ethernet devices, reject attempts to install FDB
rules for others. From Ido Schimmel.
4) Fix spectre V1 in vhost, from Jason Wang.
5) Don't pass on-stack object to irq_set_affinity_hint() in mvpp2
driver, from Marc Zyngier.
6) Fix mlx5e checksum handling when RXFCS is enabled, from Eric
Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (49 commits)
openvswitch: Fix push/pop ethernet validation
net: stmmac: Fix stmmac_mdio_reset() when building stmmac as modules
bpf: test make sure to run unpriv test cases in test_verifier
bpf: add various test cases to test_verifier
bpf: don't set id on after map lookup with ptr_to_map_val return
bpf: fix partial copy of map_ptr when dst is scalar
libbpf: Fix compile error in libbpf_attach_type_by_name
kselftests/bpf: use ping6 as the default ipv6 ping binary if it exists
selftests: mlxsw: qos_mc_aware: Add a test for UC awareness
selftests: mlxsw: qos_mc_aware: Tweak for min shaper
mlxsw: spectrum: Set minimum shaper on MC TCs
mlxsw: reg: QEEC: Add minimum shaper fields
net: hns3: bugfix for rtnl_lock's range in the hclgevf_reset()
net: hns3: bugfix for rtnl_lock's range in the hclge_reset()
net: hns3: bugfix for handling mailbox while the command queue reinitialized
net: hns3: fix incorrect return value/type of some functions
net: hns3: bugfix for hclge_mdio_write and hclge_mdio_read
net: hns3: bugfix for is_valid_csq_clean_head()
net: hns3: remove unnecessary queue reset in the hns3_uninit_all_ring()
net: hns3: bugfix for the initialization of command queue's spin lock
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This patch documents the tcp_fwmark_accept sysctl that was
added in 3.15.
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver updates from Darren Hart:
- Move the Dell dcdbas and dell_rbu drivers into platform/drivers/x86
as they are closely coupled with other drivers in this location.
- Improve _init* usage for acerhdf and fix some usage issues with
messages and module parameters.
- Simplify asus-wmi by calling ACPI/WMI methods directly, eliminating
workqueue overhead, eliminate double reporting of keyboard backlight.
- Fix wake from USB failure on Bay Trail devices (intel_int0002_vgpio).
- Notify intel_telemetry users when IPC1 device is not enabled.
- Update various drivers with new laptop model IDs.
- Update several intel drivers to use SPDX identifers and order headers
alphabetically.
* tag 'platform-drivers-x86-v4.20-1' of git://git.infradead.org/linux-platform-drivers-x86: (64 commits)
HID: asus: only support backlight when it's not driven by WMI
platform/x86: asus-wmi: export function for evaluating WMI methods
platform/x86: asus-wmi: Only notify kbd LED hw_change by fn-key pressed
platform/x86: wmi: declare device_type structure as constant
platform/x86: ideapad: Add Y530-15ICH to no_hw_rfkill
platform/x86: Add Intel AtomISP2 dummy / power-management driver
platform/x86: touchscreen_dmi: Add min-x and min-y settings for various models
platform/x86: touchscreen_dmi: Add info for the Onda V80 Plus v3 tablet
platform/x86: touchscreen_dmi: Add info for the Trekstor Primetab T13B tablet
platform/x86: intel_telemetry: Get rid of custom macro
platform/x86: intel_telemetry: report debugfs failure
MAINTAINERS: intel_telemetry: Update maintainers info
platform/x86: Add LG Gram laptop special features driver
platform/x86: asus-wmi: Simplify the keyboard brightness updating process
platform/x86: touchscreen_dmi: Add info for the Trekstor Primebook C11 convertible
platform/x86: mlx-platform: Properly use mlxplat_mlxcpld_msn201x_items
MAINTAINERS: intel_pmc_core: Update MAINTAINERS
firmware: dcdbas: include linux/io.h
platform/x86: intel-wmi-thunderbolt: Add dynamic debugging
platform/x86: intel-wmi-thunderbolt: Convert to use SPDX identifier
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A driver for LG Gram laptop supporting features not available through the
standard interfaces:
- Support for the 5 Fn keys that generate ACPI or WMI events.
- Two software controlled LEDs: keyboard backlight (also controlled by
hardware) and touchpad LED.
- Extra features: reader mode, Fn lock, cooling mode, USB charge mode, and
maximal battery charging level.
Signed-off-by: Matan Ziv-Av <matan@svgalib.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Pull ceph updates from Ilya Dryomov:
"The highlights are:
- a series that fixes some old memory allocation issues in libceph
(myself). We no longer allocate memory in places where allocation
failures cannot be handled and BUG when the allocation fails.
- support for copy_file_range() syscall (Luis Henriques). If size and
alignment conditions are met, it leverages RADOS copy-from
operation. Otherwise, a local copy is performed.
- a patch that reduces memory requirement of ceph_sync_read() from
the size of the entire read to the size of one object (Zheng Yan).
- fallocate() syscall is now restricted to FALLOC_FL_PUNCH_HOLE (Luis
Henriques)"
* tag 'ceph-for-4.20-rc1' of git://github.com/ceph/ceph-client: (25 commits)
ceph: new mount option to disable usage of copy-from op
ceph: support copy_file_range file operation
libceph: support the RADOS copy-from operation
ceph: add non-blocking parameter to ceph_try_get_caps()
libceph: check reply num_data_items in setup_request_data()
libceph: preallocate message data items
libceph, rbd, ceph: move ceph_osdc_alloc_messages() calls
libceph: introduce alloc_watch_request()
libceph: assign cookies in linger_submit()
libceph: enable fallback to ceph_msg_new() in ceph_msgpool_get()
ceph: num_ops is off by one in ceph_aio_retry_work()
libceph: no need to call osd_req_opcode_valid() in osd_req_encode_op()
ceph: set timeout conditionally in __cap_delay_requeue
libceph: don't consume a ref on pagelist in ceph_msg_data_add_pagelist()
libceph: introduce ceph_pagelist_alloc()
libceph: osd_req_op_cls_init() doesn't need to take opcode
libceph: bump CEPH_MSG_MAX_DATA_LEN
ceph: only allow punch hole mode in fallocate
ceph: refactor ceph_sync_read()
ceph: check if LOOKUPNAME request was aborted when filling trace
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Add a new mount option 'nocopyfrom' that will prevent the usage of the
RADOS 'copy-from' operation in cephfs. This could be useful, for example,
for an administrator to temporarily mitigate any possible bugs in the
'copy-from' implementation.
Currently, only copy_file_range uses this RADOS operation. Setting this
mount option will result in this syscall reverting to the default VFS
implementation, i.e. to perform the copies locally instead of doing remote
object copies.
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This time it looks like a quieter release cycle in the clk tree. I
guess that's because of summer time holidays/vacations. The biggest
change in the diffstat is in the Qualcomm clk driver, where they got
support for CPUs and handful of SoCs. After that, the at91 driver got
a major rewrite for newer DT bindings that should make things easier
going forward and the TI code moved to a clockdomain based design.
The long tail is mostly small driver updates for newer clks and some
simpler SoC clock drivers such as the Hisilicon and imx support.
In the core framework, we only have two small changes this time.
One is a new clk API to get all clks for a device with the bulk clk
APIs. This allows drivers that don't care about doing anything besides
turning on all the clks to just clk_get() them all and turn them on.
The other change is the beginning of a way to support save and restore
of clk settings in the clk framework. TI is the only user right now,
but we will want to expand upon this design in the future to support
more save and restore of clk registers. At least this gets us started
and works well enough for one SoC, but there's more work in the
future.
Core:
- clk_bulk_get_all() API and friends to get all the clks for a device
- Basic clk state save/restore hooks
New Drivers:
- Renesas RZ/A2 (R7S9210) SoC, including early clocks
- Rensas RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs
- Rensas RZ/G2M (r8a774a1) SoC
- Qualcomm Krait CPU clk support
- Qualcomm QCS404 GCC support
- Qualcomm SDM660 GCC support
- Qualcomm SDM845 camera clock controller
- Ingenic jz4725b CGU
- Hisilicon 3670 SoC support
- TI SCI clks on K3 SoCs
- iMX6 MMDC clks
- Reset Controller (RMU) support for Actions Semi Owl S900 and S700 SoCs
Updates:
- Rework at91 PMC clock driver for new DT bindings
- Nvidia Tegra clk driver MBIST workaround fix
- S2RAM support for Marvell mvebu periph clks
- Use updated printk format for OF node names
- Fix TI code to only search DT subnodes
- Various static analysis finds
- Tag various drivers with SPDX license tags
- Support dynamic frequency switching (DFS) on qcom SDM845 GCC
- Only use s2mps11 dt-binding defines instead of redefining them in the driver
- Add some more missing clks to qcom MSM8996 GCC
- Quad SPI clks on qcom SDM845
- Add support for CMT timer clocks on R-Car V3H
- Add support for SHDI and various timer clocks on R-Car V3M
- Improve OSC and RCLK (watchdog) handling on R-Car Gen3 SoCs
- Amlogic clk-pll driver improvements and updates
- Amlogic axg audio controller system clocks
- Register Amlogic meson8b clock controller early
- Add support for SATA and Fine Display Processor (FDP) clocks on R-Car M3-N
- Consolidation of system suspend related code in Exynos, S5P, S3C SoC clk drivers
- Fixes for system suspend support on Exynos542x (Odroid boards) and Exynos5433 SoC
- Remove obsoleted Exynos4212 ISP clock definitions
- Migrated TI am3/4/5 and dra7 SoCs to clockdomain based design
- TI RTC+DDR sleep mode support for clock save/restore
- Allwinner A64 display engine support and fixes
- Allwinner A83t display engine support and fixes"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (186 commits)
clk: qcom: Remove unused arrays in SDM845 GCC
clk: fixed-rate: fix of_node_get-put imbalance
clk: s2mps11: Add used attribute to s2mps11_dt_match
clk: qcom: gcc-sdm660: Add MODULE_LICENSE
clk: qcom: Add safe switch hook for krait mux clocks
dt-bindings: clock: Document qcom,krait-cc
clk: qcom: Add Krait clock controller driver
dt-bindings: arm: Document qcom,kpss-gcc
clk: qcom: Add KPSS ACC/GCC driver
clk: qcom: Add support for Krait clocks
clk: qcom: Add IPQ806X's HFPLLs
clk: qcom: Add MSM8960/APQ8064's HFPLLs
dt-bindings: clock: Document qcom,hfpll
clk: qcom: Add HFPLL driver
clk: qcom: Add support for High-Frequency PLLs (HFPLLs)
ARM: Add Krait L2 register accessor functions
clk: imx6q: add mmdc0 ipg clock
clk: imx6sl: add mmdc ipg clocks
clk: imx6sll: add mmdc1 ipg clock
clk: imx6sx: add mmdc1 ipg clock
...
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'clk-smp2s11-match' into clk-next
- iMX6 MMDC clks
- Qualcomm Krait CPU clk support
* clk-imx6-mmdc:
clk: imx6q: add mmdc0 ipg clock
clk: imx6sl: add mmdc ipg clocks
clk: imx6sll: add mmdc1 ipg clock
clk: imx6sx: add mmdc1 ipg clock
clk: imx6ul: add mmdc1 ipg clock
* clk-qcom-krait:
clk: qcom: Add safe switch hook for krait mux clocks
dt-bindings: clock: Document qcom,krait-cc
clk: qcom: Add Krait clock controller driver
dt-bindings: arm: Document qcom,kpss-gcc
clk: qcom: Add KPSS ACC/GCC driver
clk: qcom: Add support for Krait clocks
clk: qcom: Add IPQ806X's HFPLLs
clk: qcom: Add MSM8960/APQ8064's HFPLLs
dt-bindings: clock: Document qcom,hfpll
clk: qcom: Add HFPLL driver
clk: qcom: Add support for High-Frequency PLLs (HFPLLs)
ARM: Add Krait L2 register accessor functions
* clk-rockchip:
clk: rockchip: Fix static checker warning in rockchip_ddrclk_get_parent call
clk: rockchip: use the newly added clock-id for hdmi on RK3066
clk: rockchip: add clock-id for HCLK_HDMI on rk3066
clk: rockchip: fix wrong mmc sample phase shift for rk3328
clk: rockchip: improve rk3288 pll rates for better hdmi output
* clk-smp2s11-match:
clk: s2mps11: Add used attribute to s2mps11_dt_match
clk: s2mps11: Fix matching when built as module and DT node contains compatible
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The Krait clock controller controls the krait CPU and the L2 clocks
consisting a primary mux and secondary mux. Add document for that.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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The ACC and GCC regions present in KPSSv1 contain registers to
control clocks and power to each Krait CPU and L2. Documenting
the bindings here.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Adds bindings document for qcom,hfpll instantiated within
the Krait processor subsystem as separate register region.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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and 'clk-at91-pmc-rework' into clk-next
- Reset Controller (RMU) support for Actions Semi Owl S900 and S700 SoCs
- Rework at91 PMC clock driver for new DT bindings
* clk-actions-reset:
clk: actions: Add Actions Semi S900 SoC Reset Management Unit support
clk: actions: Add Actions Semi S700 SoC Reset Management Unit support
clk: actions: Add Actions Semi Owl SoCs Reset Management Unit support
dt-bindings: reset: Add binding constants for Actions Semi S900 RMU
dt-bindings: reset: Add binding constants for Actions Semi S700 RMU
dt-bindings: clock: Add reset controller bindings for Actions Semi Owl SoCs
clk: actions: Cache regmap info in private clock descriptor
* clk-imx7-init-critical:
clk: imx7d: remove CLK_IS_CRITICAL flag for arm_a7_root_clk
clk: imx: cpu clock should be always critical
clk: imx: imx7d: remove clks_init_on array
clk: imx: imx7d: remove unnecessary clocks from clks_init_on array
* clk-mmp2-ids:
clk: mmp2: fix the clock id for sdh2_clk and sdh3_clk
* clk-at91-pmc-rework:
clk: at91: move DT compatibility code to its own file
clk: at91: add at91sam9rl PMC driver
clk: at91: add at91sam9x5 PMCs driver
clk: at91: add at91sam9260 PMC driver
clk: at91: add sama5d2 PMC driver
clk: at91: add sama5d4 pmc driver
clk: at91: add new DT lookup function
dt-bindings: clk: at91: Document new PMC binding
clk: at91: add pmc_data struct and helpers
clk: at91: allow clock registration from C code
clk: at91: generated: set audio_pll_allowed in at91_clk_register_generated()
clk: at91: audio-pll: separate registration from DT parsing
clk: at91: h32mx: separate registration from DT parsing
clk: at91: generated: SSCs don't have a gclk
clk: at91: audio-pll: fix audio pmc type
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Document the new PMC binding with only one PMC node for all the PMC clocks
instead of one node per clock as this proved to be problematic.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add Reset Controller bindings to clock bindings for Actions Semi Owl
SoCs, S700 and S900.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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- Ingenic jz4725b CGU
* clk-ingenic-jz4725b:
clk: Add Ingenic jz4725b CGU driver
dt-bindings: clock: Add jz4725b-cgu.h header
dt-bindings: clock: ingenic: Explicitly list compatible strings
clk: ingenic: Add proper Kconfig entries
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This is better than letting the other developers wondering what are the
supported strings.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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- Qualcomm QCS404 GCC support
* clk-qcom-qcs404:
clk: qcom: gcc: Add global clock controller driver for QCS404
clk: qcom: Export clk_alpha_pll_configure()
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Add the clocks supported in global clock controller which clock the
peripherals like BLSPs, SDCC, USB, MDSS etc. Register all the clocks
to the clock framework for the clients to be able to request for them.
Signed-off-by: Shefali Jain <shefjain@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Co-developed-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Anu Ramanathan <anur@codeaurora.org>
[bamse, vkoul: rebase and tidyup for upstream]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
[sboyd@kernel.org: Lowercase hex]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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- Qualcomm SDM660 GCC support
* clk-qcom-sdm660:
clk: qcom: gcc-sdm660: Add MODULE_LICENSE
clk: qcom: Add Global Clock controller (GCC) driver for SDM660
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Add support for the global clock controller found on SDM660
based devices. This should allow most non-multimedia device
drivers to probe and control their clocks.
Based on CAF implementation.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[craig: rename parents to fit upstream, and other cleanups]
Signed-off-by: Craig Tatlor <ctatlor97@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
[sboyd@kernel.org: Rename gcc_660 to gcc_sdm660 and fix numbering of
defines to avoid duplicates]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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- Hisilicon 3670 SoC support
* clk-samsung:
dt-bindings: clock: samsung: Add SPDX license identifiers
clk: samsung: Use clk_hw API for calling clk framework from clk notifiers
clk: samsung: exynos5420: Enable PERIS clocks for suspend
clk: samsung: exynos5420: Define CLK_SECKEY gate clock only or Exynos5420
clk: samsung: exynos5433: Keep sclk_uart clocks enabled in suspend
clk: samsung: Remove obsolete code for Exynos4412 ISP clocks
clk: samsung: exynos5433: Add suspend state for TOP, CPIF & PERIC CMUs
clk: samsung: Use NOIRQ stage for Exynos5433 clocks suspend/resume
clk: samsung: exynos5420: Use generic helper for handling suspend/resume
clk: samsung: exynos4: Use generic helper for handling suspend/resume
clk: samsung: Add support for setting registers state before suspend
clk: samsung: exynos5250: Use generic helper for handling suspend/resume
clk: samsung: s5pv210: Use generic helper for handling suspend/resume
clk: samsung: s3c64xx: Use generic helper for handling suspend/resume
clk: samsung: s3c2443: Use generic helper for handling suspend/resume
clk: samsung: s3c2412: Use generic helper for handling suspend/resume
clk: samsung: s3c2410: Use generic helper for handling suspend/resume
clk: samsung: Remove excessive include
* clk-hisi3670:
clk: hisilicon: Add clock driver for Hi3670 SoC
dt-bindings: clk: hisilicon: Add bindings for Hi3670 clk
* clk-at91-div-0:
clk: at91: Fix division by zero in PLL recalc_rate()
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Add devicetree bindings for HiSilicon Hi3670 clock controller.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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- Qualcomm SDM845 camera clock controller
* clk-qcom-sdm845-camcc:
clk: qcom: Add camera clock controller driver for SDM845
dt-bindings: clock: Introduce QCOM Camera clock bindings
* clk-mtk-unused:
clk: mediatek: remove unused array audio_parents
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Add device tree bindings for camera clock controller for
Qualcomm Technology Inc's SDM845 SoCs.
Signed-off-by: Amit Nischal <anischal@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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This patch documents RZ/G2E (a.k.a. R8A774C0) bindings for the
Clock Pulse Generator driver.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add binding documentation for the RZ/G1N (R8A7744) Clock Pulse
Generator driver.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add support for the R7S9210 (RZ/A2) Clock Pulse Generator and Module
Standby.
The Module Standby HW in the RZ/A series is very close to R-Car HW, except
for how the registers are laid out.
The MSTP registers are only 8-bits wide, there are no status registers
(MSTPSR), and the register offsets are a little different. Since the RZ/A
hardware manuals refer to these registers as the Standby Control Registers,
we'll use that name to distinguish the RZ/A type from the R-Car type.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Acked-by: Rob Herring <robh@kernel.org> # DT bits
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add RZ/G2M (R8A774A1) Clock Pulse Generator / Module Standby and Software
Reset support.
Based on the Table 8.2b of "RZ/G Series, 2nd Generation User's Manual:
Hardware ((Rev. 0.61, June 12, 2018)".
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull new experimental media request API from Mauro Carvalho Chehab:
"A new media request API
This API is needed to support device drivers that can dynamically
change their parameters for each new frame. The latest versions of
Google camera and codec HAL depends on such feature.
At this stage, it supports only stateless codecs.
It has been discussed for a long time (at least over the last 3-4
years), and we finally reached to something that seem to work.
This series contain both the API and core changes required to support
it and a new m2m decoder driver (cedrus).
As the current API is still experimental, the only real driver using
it (cedrus) was added at staging[1]. We intend to keep it there for a
while, in order to test the API. Only when we're sure that this API
works for other cases (like encoders), we'll move this driver out of
staging and set the API into a stone.
[1] We added support for the vivid virtual driver (used only for
testing) to it too, as it makes easier to test the API for the ones
that don't have the cedrus hardware"
* tag 'media/v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (53 commits)
media: dt-bindings: Document the Rockchip VPU bindings
media: platform: Add Cedrus VPU decoder driver
media: dt-bindings: media: Document bindings for the Cedrus VPU driver
media: v4l: Add definition for the Sunxi tiled NV12 format
media: v4l: Add definitions for MPEG-2 slice format and metadata
media: videobuf2-core: Rework and rename helper for request buffer count
media: v4l2-ctrls.c: initialize an error return code with zero
media: v4l2-compat-ioctl32.c: add missing documentation for a field
media: media-request: update documentation
media: media-request: EPERM -> EACCES/EBUSY
media: v4l2-ctrls: improve media_request_(un)lock_for_update
media: v4l2-ctrls: use media_request_(un)lock_for_access
media: media-request: add media_request_(un)lock_for_access
media: vb2: set reqbufs/create_bufs capabilities
media: videodev2.h: add new capabilities for buffer types
media: buffer.rst: only set V4L2_BUF_FLAG_REQUEST_FD for QBUF
media: v4l2-ctrls: return -EACCES if request wasn't completed
media: media-request: return -EINVAL for invalid request_fds
media: vivid: add request support
media: vivid: add mc
...
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Add devicetree binding documentation for Rockchip Video Processing
Unit IP.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This adds a device-tree binding document that specifies the properties
used by the Cedrus VPU driver, as well as examples.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This introduces support for the Sunxi tiled NV12 format, where each
component of the YUV frame is divided into macroblocks. Hence, the size
of each plane requires specific alignment. The pixels inside each
macroblock are coded in linear order (line after line from top to
bottom).
This tiled NV12 format is used by the video engine on Allwinner
platforms: it is the default format for decoded frames (and the only
one available in the oldest supported platforms).
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Stateless video decoding engines require both the MPEG-2 slices and
associated metadata from the video stream in order to decode frames.
This introduces definitions for a new pixel format, describing buffers
with MPEG-2 slice data, as well as control structure sfor passing the
frame metadata to drivers.
This is based on work from both Florent Revest and Hugues Fruchet.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Various clarifications and readability improvements based on
Laurent Pinchart's review of the documentation.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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If requests are not supported by the driver, then return EACCES, not
EPERM.
If you attempt to mix queueing buffers directly and using requests,
then EBUSY is returned instead of EPERM: once a specific queueing mode
has been chosen the queue is 'busy' if you attempt the other mode
(i.e. direct queueing vs via a request).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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VIDIOC_REQBUFS and VIDIOC_CREATE_BUFFERS will return capabilities
telling userspace what the given buffer type is capable of.
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Document that V4L2_BUF_FLAG_REQUEST_FD should only be used with
VIDIOC_QBUF and cleared otherwise.
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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For now (this might be relaxed in the future) we do not allow getting
controls from a request that isn't completed. In that case we return
-EACCES. Update the documentation accordingly.
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Instead of returning -ENOENT when a request_fd was not found (VIDIOC_QBUF
and VIDIOC_G/S/TRY_EXT_CTRLS), we now return -EINVAL. This is in line
with what we do when invalid dmabuf fds are passed to e.g. VIDIOC_QBUF.
Also document that EINVAL is returned for invalid m.fd values, we never
documented that.
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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