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729d3530a5
The SCMI transport layer communicates via mailboxes and shared memory with firmware running on a microcontroller. It is platform specific how long it takes to pass a SCMI message. The most sensitive requests are coming from CPUFreq subsystem, which might be used by the scheduler. Thus, there is a need to measure these delays and capture anomalies. This change introduces trace events wrapped around transfer code. According to Jim's suggestion a unique transfer_id is to distinguish similar entries which might have the same message id, protocol id and sequence. This is a case then there are some timeouts in transfers. Suggested-by: Jim Quinlan <james.quinlan@broadcom.com> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.