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Vandita Kulkarni d55157f6aa drm/i915: Fix WARN_ON condition for cursor plane ddb allocation
In some cases like latency[level]==0, wm[level].res_lines>31,
min_ddb_alloc can be U16_MAX, exclude it from the WARN_ON.

v2: Specify the cases in which we hit U16_MAX, indentation (Ville)

Fixes: 10a7e07b68 ("drm/i915: Make sure cursor has enough ddb for the selected wm level")
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191216080619.10945-1-vandita.kulkarni@intel.com
(cherry picked from commit 4ba487019d)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
History 2019-12-17 12:23:40 +02:00
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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.