This patch set is doing necessary modifications to support PSR update using DSB on LunarLake onwards It is not necessary to wait for PSR1 to idle or PSR2 to exit DEEP sleep at the begin of commit This is left out from DSB commit. There might be room for optimization for non-DSB as well because such wait is not supposed to be necessary at the begin of update. PSR mutex is not locked when performing DSB commit. It is not necessary as we are currently using DSB only when sending updates towards panel. I.e. not using it when chaning PSR mode. Also necessary changes are made to use PSR2_MAN_TRK_CTL only in DSB. Frontbuffer updates and legacy cursor updates are using SFF_CTL register to perform full frame updates. Jouni Högander (10): drm/i915/psr: Use PSR2_MAN_TRK_CTL CFF bit only to send full update drm/i915/psr: Rename psr_force_hw_tracking_exit as intel_psr_force_update drm/i915/psr: Split setting sff and cff bits away from intel_psr_force_update drm/i915/psr: Add register definitions for SFF_CTL and CFF_CTL registers drm/i915/psr: Ensure SFF/CFF bits are not written at their sample point drm/i915/psr: Use SFF_CTL on invalidate/flush for LunarLake onwards drm/i915/psr: Allow writing PSR2_MAN_TRK_CTL using DSB drm/i915/psr: Changes for PSR2_MAN_TRK_CTL handling when DSB is in use drm/i915/psr: Remove DSB_SKIP_WAITS_EN chicken bit drm/i915/psr: Allow DSB usage when PSR is enabled drivers/gpu/drm/i915/display/intel_display.c | 8 +- drivers/gpu/drm/i915/display/intel_dsb.c | 5 +- drivers/gpu/drm/i915/display/intel_psr.c | 134 +++++++++--------- drivers/gpu/drm/i915/display/intel_psr.h | 4 +- drivers/gpu/drm/i915/display/intel_psr_regs.h | 8 ++ 5 files changed, 87 insertions(+), 72 deletions(-) -- 2.34.1