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| Filename | Latest commit message | Latest commit date |
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88e05aff35
If PSR1 is active when pipe CRC is enabled the CRC calculations will be inhibit by the transition to low power states that PSR1 brings. So lets force a PSR1 exit and as soon as pipe CRC is enabled it will block PSR1 activation and avoid CRC timeouts when running IGT tests. There is a little window between the call to force exit PSR and the write to pipe CRC registers that needs to happen within the minimum of 6 idles frames otherwise PSR1 will be active again causing the CRC timeouts but anyways this will at least reduce the occurrence of CRC timeouts. This can possibily fix issues present right now but I did not found any open, I mostly got this issue from previous CI runs of this series, bellow some exambles: * igt@kms_color@pipe-b-ctm-0-75: - shard-apl: PASS -> FAIL +9 * igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-legacy: - shard-apl: PASS -> DMESG-FAIL +17 * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-indfb-pgflip-blt: - shard-kbl: PASS -> DMESG-FAIL +12 * igt@kms_pipe_crc_basic@read-crc-pipe-c: - shard-kbl: PASS -> FAIL +7 v6: s/PSR/PSR1 (Dhinakaran) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190308000050.6226-8-jose.souza@intel.com |
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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.