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由 Kumar, Mahesh 提交于
This patch implements new DDB allocation algorithm as per HW team recommendation. This algo takecare of scenario where we allocate less DDB for the planes with lower relative pixel rate, but they require more DDB to work. It also takes care of enabling same watermark level for each plane in crtc, for efficient power saving. Changes since v1: - Rebase on top of Paulo's patch series Changes since v2: - Fix the for loop condition to enable WM Changes since v3: - Fix crash in cursor i-g-t reported by Maarten - Rebase after addressing Paulo's comments - Few other ULT fixes Changes since v4: - Rebase on drm-tip - Added separate function to enable WM levels Changes since v5: - Fix a crash identified in skl-6770HQ system Changes since v6: - Address review comments from Matt Changes since v7: - Fix failure return in skl_compute_plane_wm (Matt) - fix typo Changes since v8: - Always check cursor wm enable irrespective of total_data_rate Changes since v9: - fix typo Signed-off-by: NMahesh Kumar <mahesh1.kumar@intel.com> Reviewed-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: NMatt Roper <matthew.d.roper@intel.com> Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170601055918.4601-1-mahesh1.kumar@intel.com
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