Hi all, Irq-drive gmbus/dp aux transfer, simply because we can (and at least in the case of gmbus, it's quite a bit faster than the msleep(1) loop - we now reliably transfer at full wire speed insteaf of sometimes 2-3x slower). Compared to the older version I've floated on irc way back and which Chris has carried around in his wip branchs (and inflicted upon tons of unsuspecting bug reporters) there are a few differences: - handle the hpd vs. setup race - even the current code enables hpd processing before the fbdev is set up, which is too early. - fix the gen4 gmbus support, was totally busted. - tested on hsw (although all the relevant bits are a 100% match with cpt/ivb). - disable dp aux irq on vlv - too complicated to get at the docs (moved again, old access revoked) and I don't have the hw. While reviewing this patch series I've also noticed two small things in the irq handling code in general, patches for that at the beginning of the series. Comment&review highgly welcome. Cheers, Daniel Daniel Vetter (10): drm/i915: haswell has the same irq handlers as ivb drm/i915: don't handle PIPE_LEGACY_BLC_EVENT_STATUS on vlv drm/i915: reorder setup sequence to have irqs for output setup drm/i915: extract gmbus_wait_hw_status drm/i915: wire up gmbus irq handler drm/i915: use the gmbus irq for waits drm/i915: use gmbus irq to wait for gmbus idle drm/i915: wire up do aux channel done interrupt drm/i915: irq-drive the dp aux communication drm/i915: use _NOTRACE for gmbus/dp aux wait loops drivers/gpu/drm/i915/i915_dma.c | 10 +++- drivers/gpu/drm/i915/i915_drv.h | 8 ++++ drivers/gpu/drm/i915/i915_irq.c | 74 ++++++++++++++++++++-------- drivers/gpu/drm/i915/intel_dp.c | 59 ++++++++++++++++++----- drivers/gpu/drm/i915/intel_i2c.c | 101 +++++++++++++++++++++++++++++---------- 5 files changed, 193 insertions(+), 59 deletions(-) -- 1.7.11.7
