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Maarten Lankhorst
b6b178a772
The watermarks it should calculate against are the old optimal watermarks. The currently active crtc watermarks are pure fiction, and are invalid in case of a nonblocking modeset, page flip enabling/disabling planes or any other reason. When the crtc is disabled or during a modeset the intermediate watermarks don't need to be programmed separately, and could be directly assigned to the optimal watermarks. Changes since v1: - Use intel_atomic_get_old_crtc_state. (ville) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171019151341.4579-2-maarten.lankhorst@linux.intel.com [mlankhorst: Add cc stable and bugzilla link, since previous patch doesn't fix issue by itself] Cc: stable@vger.kernel.org #v4.8+ Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102373
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.