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2022-09-29docs: put atomic*.txt and memory-barriers.txt into the core-api bookJonathan Corbet1-42/+0
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>
2022-06-24jump_label: make initial NOP patching the special caseArd Biesheuvel1-3/+0
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
2022-03-11remoteproc: Change rproc_shutdown() to return a statusSuman Anna1-1/+2
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
2022-01-22Merge tag 'docs-5.17-2' of git://git.lwn.net/linuxLinus Torvalds1-2/+2
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
2022-01-17docs: staging/tee.rst: fix two typos found while readingWang Cheng1-2/+2
Signed-off-by: Wang Cheng <wanngchenng@gmail.com> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20220115125236.34886-1-wanngchenng@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-11-17docs: staging/tee.rst: add a section on OP-TEE notificationsJens Wiklander1-0/+30
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>
2020-08-11Merge tag 'rproc-v5.9' of ↵Linus Torvalds1-3/+3
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 ...
2020-07-23docs: staging/tee.rst: convert into definition listDaniel W. S. Almeida1-7/+11
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>
2020-07-23docs: Move kprobes.rst from staging/ to trace/Naveen N. Rao2-804/+0
Kprobes contitutes a dynamic tracing technology and as such can be moved alongside documentation of other tracing technologies. 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/8a09c01c64b2e003d5486c4f0c89740618f1bae4.1595331824.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-07-23docs: staging/kprobes.rst: Move references to a separate appendixNaveen N. Rao1-5/+9
Kprobes references are currently listed right after kretprobes example, and appears to be part of the same section. Move this out to a separate appendix for clarity. 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/2bba61cd60eec87fbcca3e4343b7f95afa1178cd.1595331824.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-07-23docs: staging/kprobes.rst: Update some of the referencesNaveen N. Rao1-4/+2
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>
2020-06-26docs: staging: use small font for literal includesMauro Carvalho Chehab1-3/+30
The normal font is too big to display 80 columns, causing extra breaks to be added at weird places. change to the footnotesize, as this would fit a little bit better. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/fe2cc675ec69bfa50aa7e183dcd911077046b01f.1592918949.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-06-26docs: Add remaining Documentation/*.txt at staging/index.rstMauro Carvalho Chehab1-6/+3
There are a few text files that aren't yet at the docs building system. Add those to the staging/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/35967d18de8b3ee480194acf68e62d515347c1e5.1592918949.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-06-19docs: staging: don't use literalincludeMauro Carvalho Chehab1-3/+6
Such directive cause troubles with PDF output. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/9a9043face7ace90e3616ba840a8e09cfc8f143f.1592203650.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-06-19docs: move remaining stuff under Documentation/*.txt to Documentation/stagingMauro Carvalho Chehab10-0/+2751
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>