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This make virtio free driver_override upon removal. It also updates the
rpmsg documentation after earlier API updates.
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Merge tag 'rpmsg-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull rpmsg updates from Bjorn Andersson:
"This make virtio free driver_override upon removal. It also updates
the rpmsg documentation after earlier API updates"
* tag 'rpmsg-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
rpmsg: virtio: Free driver_override when rpmsg_remove()
doc: rmpsg: Update with rpmsg_endpoint
Add a separate documentation directory for TEE subsystem since it is a
standalone subsystem which already offers devices consumed by multiple
different subsystem drivers.
Split overall TEE subsystem documentation modularly where:
- The userspace API has been moved to Documentation/userspace-api/tee.rst.
- The driver API has been moved to Documentation/driver-api/tee.rst.
- The first module covers the overview of TEE subsystem.
- The further modules are dedicated to different TEE implementations like:
- OP-TEE
- AMD-TEE
- and so on for future TEE implementation support.
Acked-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231128072352.866859-1-sumit.garg@linaro.org
It seems the documentation was not updated when `rpmsg_sendto`
and related switched from `rpmsg_channel` to `rpmsg_endpoint`.
This change updates the proper calls, text, and the sample.
Signed-off-by: Adrien Leravat <adrien.leravat@gmail.com>
Link: https://lore.kernel.org/r/20231203200606.255302-1-adrien.leravat@gmail.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Use capital letters in acronyms for CD-ROM, FPGA, and PCMCIA.
Use capital letter in the first word of chapter headings for
Locking, Timers, and "Brief tutorial on CRC computation".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Moritz Fischer <mdf@kernel.org>
Cc: Wu Hao <hao.wu@intel.com>
Cc: Tom Rix <trix@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: Waiman Long <longman@redhat.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Reviewed-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20230516001518.14514-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Adds an SMC call that will pass an OP-TEE binary image to EL3 and
instruct it to load it as the BL32 payload. This works in conjunction
with a feature added to Trusted Firmware for ARMv8 and above
architectures that supports this.
The main purpose of this change is to facilitate updating the OP-TEE
component on devices via a rootfs change rather than having to do a
firmware update. Further details are linked to in the Kconfig file.
Signed-off-by: Jeffrey Kardatzke <jkardatzke@chromium.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jeffrey Kardatzke <jkardatzke@google.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
These files describe part of the core API, but have never been converted to
RST due to ... let's say local oppposition. So, create a set of
special-purpose wrappers to ..include these files into a separate page so
that they can be a part of the htmldocs build. Then link them into the
core-api manual and remove them from the "staging" dumping ground.
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: David Vernet <void@manifault.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220927160559.97154-7-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Instead of defaulting to patching NOP opcodes at init time, and leaving
it to the architectures to override this if this is not needed, switch
to a model where doing nothing is the default. This is the common case
by far, as only MIPS requires NOP patching at init time. On all other
architectures, the correct encodings are emitted by the compiler and so
no initial patching is needed.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220615154142.1574619-4-ardb@kernel.org
The rproc_shutdown() function is currently not returning any
error code, and any failures within rproc_stop() are not passed
back to the users. Change the signature to return a success value
back to the callers.
The remoteproc sysfs and cdev interfaces are also updated to
return back this status to userspace.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220213201246.25952-2-s-anna@ti.com
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Merge tag 'docs-5.17-2' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"Three small documentation fixes"
* tag 'docs-5.17-2' of git://git.lwn.net/linux:
Documentation: fix firewire.rst ABI file path error
docs: ftrace: fix ambiguous sentence
docs: staging/tee.rst: fix two typos found while reading
Adds a section on notifications used by OP-TEE, synchronous and
asynchronous.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
This introduces a new "detached" state for remote processors that are
deemed to be running at the time Linux boots and the infrastructure for
"attaching" to these. It then introduces the support for performing this
operation for the STM32 platform.
The coredump functionality is moved out from the core file and gains
support for an optional mode where the recovery phase awaits the
notification from devcoredump that the dump should be released. This
allows userspace to grab the coredump in scenarios where vmalloc space
is too low for creating a complete copy of the coredump before handing
this to devcoredump.
A new character device based interface is introduced to allow tying the
stoppage of a remote processor to the termination of a user space
process. This is useful in situations when such process provides crucial
resources/operations for the firmware running on the remote processor.
The Texas Instrument K3 driver gains support for the C66x and C71x DSPs.
Qualcomm remoteprocs gains support for stashing relocation information
in IMEM, to aid post mortem debugging and the crash notification
mechanism is generalized to be reusable in cases where loosely coupled
drivers needs to know about the status of a remote processor. One such
example is the IPA hardware block, which is jointly owned with the
modem and migrated to this improved interface.
It also introduces a number of bug fixes and debug improvements for the
Qualcomm modem remoteproc driver.
And it cleans up the inconsistent interface for remoteproc drivers to
implement power management.
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Merge tag 'rproc-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This introduces a new "detached" state for remote processors that are
deemed to be running at the time Linux boots and the infrastructure
for "attaching" to these. It then introduces the support for
performing this operation for the STM32 platform.
The coredump functionality is moved out from the core file and gains
support for an optional mode where the recovery phase awaits the
notification from devcoredump that the dump should be released. This
allows userspace to grab the coredump in scenarios where vmalloc space
is too low for creating a complete copy of the coredump before handing
this to devcoredump.
A new character device based interface is introduced to allow tying
the stoppage of a remote processor to the termination of a user space
process. This is useful in situations when such process provides
crucial resources/operations for the firmware running on the remote
processor.
The Texas Instrument K3 driver gains support for the C66x and C71x
DSPs.
Qualcomm remoteprocs gains support for stashing relocation information
in IMEM, to aid post mortem debugging and the crash notification
mechanism is generalized to be reusable in cases where loosely coupled
drivers needs to know about the status of a remote processor. One such
example is the IPA hardware block, which is jointly owned with the
modem and migrated to this improved interface.
It also introduces a number of bug fixes and debug improvements for
the Qualcomm modem remoteproc driver.
And it cleans up the inconsistent interface for remoteproc drivers to
implement power management"
* tag 'rproc-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (56 commits)
remoteproc: core: Register the character device interface
remoteproc: Add remoteproc character device interface
remoteproc: kill IPA notify code
net: ipa: new notification infrastructure
remoteproc: k3-dsp: Add support for C71x DSPs
dt-bindings: remoteproc: k3-dsp: Update bindings for C71x DSPs
remoteproc: k3-dsp: Add support for L2RAM loading on C66x DSPs
remoteproc: k3-dsp: Add a remoteproc driver of K3 C66x DSPs
dt-bindings: remoteproc: Add bindings for C66x DSPs on TI K3 SoCs
remoteproc: k3: Add TI-SCI processor control helper functions
remoteproc: Introduce rproc_of_parse_firmware() helper
dt-bindings: arm: keystone: Add common TI SCI bindings
remoteproc: qcom_q6v5_mss: Remove redundant running state
remoteproc: qcom: q6v5: Update running state before requesting stop
remoteproc: qcom_q6v5_mss: Add modem debug policy support
remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load
remoteproc: qcom_q6v5_mss: Validate MBA firmware size before load
rpmsg: update documentation
remoteproc: qcom_q6v5_mss: Add MBA log extraction support
remoteproc: Add coredump debugfs entry
...
Fix the following warnings:
tee.rst:65: WARNING: Unexpected indentation.
tee.rst:69: WARNING: Block quote ends without a
blank line; unexpected unindent.
By switching to the 'definition list' syntax.
Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Link: https://lore.kernel.org/r/20200718165107.625847-4-dwlsalmeida@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Some of the kprobes references are not valid anymore. Update the URLs to
point to their changed locations, where appropriate. Drop two URLs which
do not exist anymore.
Reported-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/ae96223716e61185870244d8f9dff6678de12fa1.1595331824.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There are several files that I was unable to find a proper place
for them, and 3 ones that are still in plain old text format.
Let's place those stuff behind the carpet, as we'd like to keep the
root directory clean.
We can later discuss and move those into better places.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/11bd0d75e65a874f7c276a0aeab0fe13f3376f5f.1592203650.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
