Hi all,
So in the course of beating the pageflip paths senseless to test the new locking scheme I've hunted down some bugs on g33. Sometimes we seemingly time out waiting for the event - apparently the pageflip irq is lost somewhere. I've tried to dig in, but lost myself completely in the rather fickle vblank mess in drm_irq.c.
To not write off the last few days completely, I've figured I'll submit the two sane patches for inclusion - the first should fix fbcon doing stupid things, the second is purely paranoia (I hope at least). Imho longterm we need to seriously look at the current vblank stuff - since it operates on pipe ides instead of modeset crtc objects it's all rather fiddly and easily falls appart. But keeping both ums and kms paths working is a challenge ...
Comments highly welcome.
Yours, Daniel
Daniel Vetter (2): drm/fb_helper: check whether fbcon is bound drm/i915: wake up all pageflip waiters
drivers/gpu/drm/drm_fb_helper.c | 39 +++++++++++++++++++++++++--------- drivers/gpu/drm/i915/intel_display.c | 2 +- 2 files changed, 30 insertions(+), 11 deletions(-)