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Subject[PATCH v6 0/6] mm/hmm/test: add self tests for HMM
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This series adds new functions to the mmu interval notifier API to
allow device drivers with MMUs to dynamically mirror a process' page
tables based on device faults and invalidation callbacks. The Nouveau
driver is updated to use the extended API and a set of stand alone self
tests is added to help validate and maintain correctness.

The patches are based on linux-5.5.0-rc6 and are for Jason's rdma/hmm tree
since I believe he is planning some interval notifier changes.

Changes v5 -> v6:
Rebase to linux-5.5.0-rc6
Refactored mmu interval notifier patches
Converted nouveau to use the new mmu interval notifier API

Changes v4 -> v5:
Added mmu interval notifier insert/remove/update callable from the
invalidate() callback
Updated HMM tests to use the new core interval notifier API

Changes v1 -> v4:
https://lore.kernel.org/linux-mm/20191104222141.5173-1-rcampbell@nvidia.com

Ralph Campbell (6):
mm/mmu_notifier: add mmu_interval_notifier_insert_safe()
mm/mmu_notifier: add mmu_interval_notifier_put()
mm/notifier: add mmu_interval_notifier_update()
mm/mmu_notifier: add mmu_interval_notifier_find()
nouveau: use new mmu interval notifiers
mm/hmm/test: add self tests for HMM

MAINTAINERS | 3 +
drivers/gpu/drm/nouveau/nouveau_svm.c | 313 ++++--
include/linux/mmu_notifier.h | 29 +
lib/Kconfig.debug | 11 +
lib/Makefile | 1 +
lib/test_hmm.c | 1368 ++++++++++++++++++++++++
mm/mmu_notifier.c | 223 +++-
tools/testing/selftests/vm/.gitignore | 1 +
tools/testing/selftests/vm/Makefile | 3 +
tools/testing/selftests/vm/config | 2 +
tools/testing/selftests/vm/hmm-tests.c | 1354 +++++++++++++++++++++++
tools/testing/selftests/vm/run_vmtests | 16 +
tools/testing/selftests/vm/test_hmm.sh | 97 ++
13 files changed, 3289 insertions(+), 132 deletions(-)
create mode 100644 lib/test_hmm.c
create mode 100644 tools/testing/selftests/vm/hmm-tests.c
create mode 100755 tools/testing/selftests/vm/test_hmm.sh

--
2.20.1

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