From: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx> SLPC (Single Loop Power Controller) is a replacement for some host-based power management features. The SLPC implemenation runs in firmware on GuC. This series is a first request for comments. This series is not expected to be merged. After changes based on comments, a later patch series will be sent for merging. This series has been tested with SKL guc firmware versions 4.3 and 4.7. The graphics power management features in SLPC in those versions are DFPS (Dynamic FPS), Turbo, and DCC (Duty Cycle Control). DFPS adjusts requested graphics frequency to maintain target framerate. Turbo adjusts requested graphics frequency to maintain target GT busyness. DCC adjusts requested graphics frequency and stalls guc-scheduler to maintain actual graphics frequency in efficient range. Patch 1/22 is included ihere for convenience and should be part of an earlier series. SLPC assumes guc firmware has been loaded and GuC submission is enabled. Patch 22/22 sets the flag to enable SLPC on SKL. Without this patch, the previous patches should have no effect. VIZ-6773, VIZ-6889 Dave Gordon (1): drm/i915: Enable GuC submission, where supported Sagar Arun Kamble (4): drm/i915/slpc: Enable/Disable RC6 in SLPC flows drm/i915/slpc: Add Display mode event related data structures drm/i915/slpc: Notification of Display mode change drm/i915/slpc: Notification of Refresh Rate change Tom O'Rourke (17): drm/i915/slpc: Add has_slpc capability flag drm/i915/slpc: Expose guc functions for use with SLPC drm/i915/slpc: Use intel_slpc_* functions if supported drm/i915/slpc: If using SLPC, do not set frequency drm/i915/slpc: Enable SLPC in guc if supported drm/i915/slpc: Allocate/Release/Initialize SLPC shared data drm/i915/slpc: Setup rps frequency values during SLPC init drm/i915/slpc: Update current requested frequency drm/i915/slpc: Send reset event drm/i915/slpc: Send shutdown event drm/i915/slpc: Add slpc_status enum values drm/i915/slpc: Add i915_slpc_info to debugfs drm/i915/slpc: Add dfps task info to i915_slpc_info drm/i915/slpc: Add parameter unset/set/get functions drm/i915/slpc: Add slpc support for max/min freq drm/i915/slpc: Add enable/disable debugfs for slpc drm/i915/slpc: Add has_slpc to skylake info drivers/gpu/drm/i915/Makefile | 5 +- drivers/gpu/drm/i915/i915_debugfs.c | 436 +++++++++++++++++++++++++ drivers/gpu/drm/i915/i915_drv.c | 1 + drivers/gpu/drm/i915/i915_drv.h | 2 + drivers/gpu/drm/i915/i915_guc_submission.c | 6 +- drivers/gpu/drm/i915/i915_params.c | 4 +- drivers/gpu/drm/i915/i915_sysfs.c | 10 + drivers/gpu/drm/i915/intel_display.c | 2 + drivers/gpu/drm/i915/intel_dp.c | 2 + drivers/gpu/drm/i915/intel_drv.h | 1 + drivers/gpu/drm/i915/intel_guc.h | 7 + drivers/gpu/drm/i915/intel_guc_loader.c | 3 + drivers/gpu/drm/i915/intel_pm.c | 43 ++- drivers/gpu/drm/i915/intel_slpc.c | 499 +++++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_slpc.h | 207 ++++++++++++ 15 files changed, 1210 insertions(+), 18 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_slpc.c create mode 100644 drivers/gpu/drm/i915/intel_slpc.h -- 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
