[Intel-gfx] [PATCH v6 0/2] drm/mm: Add an iterator to optimally walk over holes suitable for an allocation

[Vivek Kasireddy <vivek.kasireddy@intel.com>]

The first patch is a drm core patch that replaces the for loop in
drm_mm_insert_node_in_range() with the iterator and would not
cause any functional changes. The second patch is a i915 driver
specific patch that also uses the iterator but solves a different
problem.

v2:
- Added a new patch to this series to fix a potential NULL
  dereference.
- Fixed a typo associated with the iterator introduced in the
  drm core patch.
- Added locking around the snippet in the i915 patch that
  traverses the GGTT hole nodes.

v3: (Tvrtko)
- Replaced mutex_lock with mutex_lock_interruptible_nested() in
  the i915 patch.

v4: (Tvrtko)
- Dropped the patch added in v2 as it was deemed unnecessary.

v5: (Tvrtko)
- Fixed yet another typo in the drm core patch: should have
  passed caller_mode instead of mode to the iterator.

v6: (Tvrtko)
- Fixed the checkpatch warning that warns about precedence issues.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Cc: Christian König <christian.koenig@amd.com>

Vivek Kasireddy (2):
  drm/mm: Add an iterator to optimally walk over holes for an allocation
    (v6)
  drm/i915/gem: Don't try to map and fence large scanout buffers (v9)

 drivers/gpu/drm/drm_mm.c        |  32 ++++----
 drivers/gpu/drm/i915/i915_gem.c | 128 +++++++++++++++++++++++---------
 include/drm/drm_mm.h            |  36 +++++++++
 3 files changed, 145 insertions(+), 51 deletions(-)

-- 
2.35.1