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b430c27a7d
It is necessary to track states for objects other than connector, crtc and plane for atomic modesets. But adding objects like DP MST link bandwidth to drm_atomic_state would mean that a non-core object will be modified by the core helper functions for swapping and clearing it's state. So, lets add void * objects and helper functions that operate on void * types to keep these objects and states private to the core. Drivers can then implement specific functions to swap and clear states. The other advantage having just void * for these objects in drm_atomic_state is that objects of different types can be managed in the same state array. v7: Use __for_each_private_obj to define for_each_private_obj (Maarten) v6: More kernel-doc to keep 0-day happy v5: Remove more NULL checks (Maarten) v4: Avoid redundant NULL checks when private_objs array is empty (Maarten) v3: Macro alignment (Chris) v2: Added docs and new iterator to filter private objects (Daniel) Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Harry Wentland <Harry.wentland@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1492753893-3748-2-git-send-email-dhinakaran.pandiyan@intel.com |
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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.