[PATCH 0/7] Fix stealing guc_ids + test

[Matthew Brost]

Patches 1 & 2 address bugs in stealing of guc_ids and patch 7 tests this
path.

Patches 4-6 address some issues with the CTs exposed by the selftest in
patch 7. Basically if a lot of contexts were all deregistered all at
once, the CT channel could deadlock.

Patch 3 is a small fix that is already review but just included for CI.

v2: Address comments, resend for CI
v3: Address comments in patch #7

Signed-off-by: Matthew Brost <matthew.brost at intel.com>

John Harrison (1):
  drm/i915/guc: Don't hog IRQs when destroying contexts

Matthew Brost (6):
  drm/i915/guc: Use correct context lock when callig
    clr_context_registered
  drm/i915/guc: Only assign guc_id.id when stealing guc_id
  drm/i915/guc: Remove racey GEM_BUG_ON
  drm/i915/guc: Add extra debug on CT deadlock
  drm/i915/guc: Kick G2H tasklet if no credits
  drm/i915/guc: Selftest for stealing of guc ids

 drivers/gpu/drm/i915/gt/uc/intel_guc.h        |  12 ++
 drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c     |  18 +-
 .../gpu/drm/i915/gt/uc/intel_guc_submission.c |  69 ++++---
 drivers/gpu/drm/i915/gt/uc/selftest_guc.c     | 173 ++++++++++++++++++
 4 files changed, 244 insertions(+), 28 deletions(-)

-- 
2.33.1