linux-kernel - [PATCH v3 0/8] Fix connector probing deadlocks from RPM bugs

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Date:   Mon, 30 Jul 2018 20:39:45 -0400
From:   Lyude Paul <lyude@...hat.com>
To:     nouveau@...ts.freedesktop.org
Cc:     "David Airlie" <airlied@...ux.ie>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, "Ben Skeggs" <bskeggs@...hat.com>,
        "Sean Paul" <seanpaul@...omium.org>,
        "Maarten Lankhorst" <maarten.lankhorst@...ux.intel.com>,
        "Gustavo Padovan" <gustavo@...ovan.org>
Subject: [PATCH v3 0/8] Fix connector probing deadlocks from RPM bugs

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(-)

-- 
2.17.1