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From LNL onwards there is a new hardware feature, which allows to detect if the driver wrongly allocated DBuf entries and they happen to overlap. If enabled this will cause a specific interrupt to occur. We now handle it in the driver, by writing correspondent error message to kernel log. v2: Initialize dbuf overlap flag in runtime_defaults (Jani Nikula) v3: Unmask the overlap detection interrupt (Uma) v4: use display over i915 (Jani Nikula) v5: Use display instead of dev_priv (Jani Nikula) v6: rebased to resolve merge conflicts Bspec: 69450, 69464 Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com> Reviewed-by: Mika Kahola <mika.kahola@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241030103319.207235-1-vinod.govindapillai@intel.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.