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This allows the use of more than 3 ports/pipes/whatever without tricks, even if the register offsets are not evenly spaced. There's the risk of out of bounds access if we're not careful; currently that would "just" lead to the wrong register offset being used. It might be possible to add build bug ons for build time constant indexing. We already have ports defined up to E, not sure if we might have bugs related to them and the current _PORT3() macro. text data bss dec hex filename 1239868 46199 4096 1290163 13afb3 drivers/gpu/drm/i915/i915.ko 1238828 46199 4096 1289123 13aba3 drivers/gpu/drm/i915/i915.ko Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Tvrtko Ursulin <tursulin@ursulin.net> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1485532626-20923-1-git-send-email-jani.nikula@intel.com
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.