[PATCH 0/4] drm/panthor: More reset fixes

[Boris Brezillon]

Hello,

This is a collection of fixes for bugs found while chasing an
unrecoverable fault leading to a device unplug (because of some
other bugs that was introduced in my local dev branch).

The first patch makes sure we immediately reset the GPU on an
unrecoverable fault, and following patches are fixing various
NULL/invalid pointer derefs caused by use-after-free situations
following a device unplug.

Regards,

Boris

Boris Brezillon (4):
  drm/panthor: Force an immediate reset on unrecoverable faults
  drm/panthor: Keep a ref to the VM at the panthor_kernel_bo level
  drm/panthor: Reset the FW VM to NULL on unplug
  drm/panthor: Call panthor_sched_post_reset() even if the reset failed

 drivers/gpu/drm/panthor/panthor_device.c |  8 ++---
 drivers/gpu/drm/panthor/panthor_device.h |  1 +
 drivers/gpu/drm/panthor/panthor_fw.c     |  5 +--
 drivers/gpu/drm/panthor/panthor_gem.c    |  8 +++--
 drivers/gpu/drm/panthor/panthor_gem.h    |  8 +++--
 drivers/gpu/drm/panthor/panthor_heap.c   |  8 ++---
 drivers/gpu/drm/panthor/panthor_sched.c  | 40 +++++++++++++++++-------
 drivers/gpu/drm/panthor/panthor_sched.h  |  2 +-
 8 files changed, 51 insertions(+), 29 deletions(-)

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2.44.0