[PATCH v4 0/6] A collection of cleanups, version 4

[Dave Gordon <david.s.gordon@intel.com>]

Various things can go wrong during initialisation and teardown, but they
usually don't, so the error-handling paths go largely untested.  This
collection of patches fixes some things I recently noticed. Some might
lead to a kernel OOPS, but mostly they're leaks and other inconsistencies.

Includes Nick Hoath's patch [6/6] to swap context/engine teardown, because
that helps make setup & teardown more consistent too; but more importantly,
that patch [6/6] is dependent on patch [5/6] of this set to work correctly.
Applying [6/6] without at least [5/6] as well will cause a fault on driver
unload!

v2:
    Patches reordered and the previous [1/4] split into [4..6/6],
    so that the bugs that it's fixing are more clearly visible
    (Mika Kuoppala, although he said it wasn't actually *necessary*).

v3:
    Patches reordered again; the bug fixes are now in patches 3 and 5.
    The former could stand alone; the latter depends on patch 4 and is
    a prerequisite for Nick's patch [6/6] to function.

v4:
    Rebased

Dave Gordon (5):
  drm/i915: tidy up initialisation failure paths (legacy)
  drm/i915: tidy up initialisation failure paths (GEM & LRC)
  drm/i915: unmap the correct page in intel_logical_ring_cleanup()
  drm/i915: consolidate LRC mode HWSP setup & teardown
  drm/i915: HWSP should be unmapped earlier in LRC teardown sequence

Nick Hoath (1):
  drm/i915: fix context/engine cleanup order

 drivers/gpu/drm/i915/i915_dma.c         |  4 +-
 drivers/gpu/drm/i915/i915_drv.h         |  2 +-
 drivers/gpu/drm/i915/i915_gem.c         | 28 ++++++++------
 drivers/gpu/drm/i915/intel_lrc.c        | 65 ++++++++++++++++++++-------------
 drivers/gpu/drm/i915/intel_ringbuffer.c | 49 ++++++++++++-------------
 5 files changed, 82 insertions(+), 66 deletions(-)

-- 
1.9.1

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