Hi, This series brings gen11 interrupt handling closer to what we have with previous gens. Namely the early releasing of master intr to reduce interrupt latency. Also cleanups in guc interrupts and identity selector handling are included. Code size shrinks a little: add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-156 (-156) Function old new delta gen11_irq_postinstall 651 623 -28 gen11_irq_reset 1711 1681 -30 gen11_irq_handler 880 836 -44 gen11_gt_engine_identity 224 170 -54 Total: Before=1281048, After=1280892, chg -0.01% Interrupt handling latency is improved generally as measured with gem_exec_nop, the odd one in the bunch being basic-sequential which suffers almost 11%. The oddity is that the sequential, which is same test with longer timeout, showing 2% improvement. Testname diff-% ------------------------ basic-series -26.051 basic-parallel -24.589 basic-sequent-a 10.729 default -24.738 signal-default -11.749 render -22.221 signal-render -13.250 bsd -16.422 signal-bsd -9.931 blt -22.721 signal-blt -5.241 vebox -22.526 signal-all -4.839 series -2.249 parallel -2.747 sequential -2.137 forked-sequent-i -24.196 forked-sequent-a 2.789 chained-sequen-i -2.351 chained-sequen-a 3.262 context-sequen-i -5.904 context-sequen-a 2.128 preempt-default -3.972 preempt-render 0.503 preempt-bsd -2.355 preempt-blt -1.822 preempt-vebox -2.757 poll-default 0.384 poll-render -0.753 poll-bsd 0.552 poll-blt -0.532 poll-vebox -0.867 poll-sequential 2.865 -Mika Mika Kuoppala (10): drm/i915/icl: No need to ack intr through master control drm/i915/icl: Disable master intr early drm/i915/icl: No need to early bailout on interrupt drm/i915/icl: Add helper to enable/disable master irq drm/i915/icl: Trim down posting reads on master intr control drm/i915/icl: Streamline guc irq handling drm/i915/icl: Make own function for display irq handler drm/i915/icl: Handle GT interrupts after enabling master drm/i915/icl: Handle display interrupts after enabling master drm/i915/icl: Only ack irq identities we did handle drivers/gpu/drm/i915/i915_irq.c | 134 ++++++++++++++++---------------- 1 file changed, 69 insertions(+), 65 deletions(-) -- 2.17.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
