[PATCH i-g-t 0/6] Initial dmem cgroup support

["Thomas Hellström" <thomas.hellstrom@linux.intel.com>]

This series introduces library support for some trivial cgroup v2
dmem manipulation.

It also adds a test for the library support itself and then an
xe test where cgroup functionality is exercised. In particular
lowering the max allocated amount of vram beyond what's already
allocated.

That functionality is not in the kernel yet, but a series for it
is pending.

Patch 1 adds library functionality.
Patch 2 adds a test for the library functionality. It's device
      agnostic.
Patch 3 adds a function to get the xe driver cgroup controller
      region name for an xe device VRAM region. Also library
      functionality.
Patch 4 adds some vm_bind functionality from Sobin Thomas
Patch 5 adds the xe dmem cgroup test
Patch 6 adds an additional subtest testing the O_NONBLOCK functionality

v2:
- Use Sobin's patch for patch 4 rather than a local crafted one.
- Add the O_NONBLOCK subtest.

Sobin Thomas (1):
  lib/xe: Add failable variant of xe_vm_bind_lr_sync()

Thomas Hellström (5):
  lib/igt_cgroup: add cgroup v2 and dmem controller helpers
  tests/cgroup_dmem: add dmem cgroup controller test
  lib/xe: add xe_cgroup_region_name() helper
  tests/xe_cgroups: add dmem cgroup eviction test
  tests/xe_cgroups: add write_eviction_nonblock subtest

 lib/igt.h                |   1 +
 lib/igt_cgroup.c         | 638 +++++++++++++++++++++++++++++++++++++++
 lib/igt_cgroup.h         |  56 ++++
 lib/meson.build          |   1 +
 lib/xe/xe_ioctl.c        |  35 ++-
 lib/xe/xe_ioctl.h        |   2 +
 lib/xe/xe_query.c        |  32 ++
 lib/xe/xe_query.h        |   2 +
 tests/cgroup_dmem.c      |  92 ++++++
 tests/intel/xe_cgroups.c | 307 +++++++++++++++++++
 tests/meson.build        |   2 +
 11 files changed, 1158 insertions(+), 10 deletions(-)
 create mode 100644 lib/igt_cgroup.c
 create mode 100644 lib/igt_cgroup.h
 create mode 100644 tests/cgroup_dmem.c
 create mode 100644 tests/intel/xe_cgroups.c

-- 
2.53.0