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20c74f8926
Neil Armstrong <neil.armstrong@linaro.org> says: On systems with a large number request slots and unavailable MCQ, the current design of the interrupt handler can delay handling of other subsystems interrupts causing display artifacts, GPU stalls or system firmware requests timeouts. Example of errors reported on a loaded system: [drm:dpu_encoder_frame_done_timeout:2706] [dpu error]enc32 frame done timeout msm_dpu ae01000.display-controller: [drm:hangcheck_handler [msm]] *ERROR* 67.5.20.1: hangcheck detected gpu lockup rb 2! msm_dpu ae01000.display-controller: [drm:hangcheck_handler [msm]] *ERROR* 67.5.20.1: completed fence: 74285 msm_dpu ae01000.display-controller: [drm:hangcheck_handler [msm]] *ERROR* 67.5.20.1: submitted fence: 74286 Error sending AMC RPMH requests (-110) Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250407-topic-ufs-use-threaded-irq-v3-0-08bee980f71e@linaro.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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 reStructuredText 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.