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amdgpu_dm_atomic_check() is used to validate the entire configuration of planes and crtc's that the user space wants to commit. However amdgpu_dm_atomic_check() depends upon DRM_MODE_ATOMIC_ALLOW_MODESET flag else its mostly dummy. Its not mandatory for the user space to set DRM_MODE_ATOMIC_ALLOW_MODESET, and in general its not set either along with DRM_MODE_ATOMIC_TEST_ONLY. Considering its importantance, this patch defers the allow_modeset check in dm_update_planes_state(), so that there shall be scope to validate the configuration sent from user space, without impacting the population of dc/dm related data structures. Signed-off-by: Shirish S <shirish.s@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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.