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With gtt remapping plugged in we can simply raise the stride limit on gen4+. Let's just pick the limit to match the render engine max stride (256KiB on gen7+, 128KiB on gen4+). No remapping CCS because the virtual address of each page actually matters due to the new hash mode (WaCompressedResourceDisplayNewHashMode:skl,kbl etc.), and no remapping on gen2/3 due extra complications from fence alignment and gen2 2KiB GTT tile size. Also no real benefit since the display engine limits already match the other limits. v2: Rebase due to is_ccs_modifier() v3: Tweak the comment and commit msg v4: Fix gen4+ stride limit to be 128KiB Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> #v3 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190509122159.24376-8-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.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 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.