[v3,0/8] Fix connector probing deadlocks from RPM bugs

Message

Lyude Paul July 31, 2018, 12:39 a.m. UTC

This is the next version of
https://patchwork.freedesktop.org/series/46815/

With a lot more thought put into it so as to avoid the potential
deadlock scenarios I missed. This also required fixing some bogus DRM
helper usage.

Try and deadlock me now, nouveau. I dare you!!!

Lyude Paul (8):
  drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement
  drm/nouveau: Enable polling even if we have runtime PM
  drm/fb_helper: Introduce hotplug_suspend/resume()
  drm/nouveau: Fix deadlock with fb_helper using new helpers
  drm/nouveau: Use pm_runtime_get_noresume() in connector_detect()
  drm/nouveau: Respond to HPDs by probing one conn at a time
  drm/nouveau: Fix deadlocks in nouveau_connector_detect()
  drm/nouveau: Call pm_runtime_get_noresume() from hpd handlers

 drivers/gpu/drm/drm_fb_helper.c             | 65 +++++++++++++++++++++
 drivers/gpu/drm/nouveau/nouveau_connector.c | 60 +++++++++++++++----
 drivers/gpu/drm/nouveau/nouveau_connector.h |  1 +
 drivers/gpu/drm/nouveau/nouveau_display.c   |  7 ++-
 drivers/gpu/drm/nouveau/nouveau_drm.c       | 16 +++--
 drivers/gpu/drm/nouveau/nouveau_fbcon.c     |  1 +
 include/drm/drm_fb_helper.h                 | 20 +++++++
 7 files changed, 154 insertions(+), 16 deletions(-)