[PATCH v7 0/7] cxl: Add CXL type2 accelerator support for cxl_test

[Dave Jiang <dave.jiang@intel.com>]

v7
- Fixed sachiko raised issues

Based against v7.2-rc1 and sits on top of the the immutable branch [1]
for type 2.

See individual patches for changes from previous version.
Fixed up sashiko reported issues.

Series adds a 'type2_test' module parameter where it setup a mock type2
hierarchy with a mock type2 accelerator device directly under a root
port that has an auto region setup.

It also includes a CXL fix that was encountered when running tests with
the new code.

[
  {
    "memdevs":[
      {
        "memdev":"mem0",
        "ram_size":536870912,
        "ram_qos_class":42,
        "host":"cxl_type2_accel.0",
        "poison_injectable":false
      }
    ]
  },
  {
    "regions":[
      {
        "region":"region0",
        "resource":70300293136384,
        "size":536870912,
        "type":"ram",
        "interleave_ways":1,
        "interleave_granularity":4096,
        "decode_state":"commit"
      }
    ]
  }
]

    "root decoders":[
      {
        "decoder":"decoder0.0",
        "resource":70300293136384,
        "size":1073741824,
        "interleave_ways":1,
        "accelmem_capable":true,
        "qos_class":42,
        "nr_targets":1
      },

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git/log/?h=for-7.3/cxl-type2-support

Dave Jiang (7):
  cxl/test: Add test for module parameters
  cxl/test: Add type2 support for mock CFMWS0
  cxl/test: Refactor platform device enumerations
  cxl/test: Add hierarchy enumeration support for type2 device
  cxl/test: Propagate -ENOMEM on platform_device_alloc() failures
  cxl/test: Fixup hdm init for auto region to support type2
  cxl/test: Add cxl_test accelerator driver

 tools/testing/cxl/test/Kbuild      |   2 +
 tools/testing/cxl/test/accel.c     |  66 +++
 tools/testing/cxl/test/cxl.c       | 850 ++++++++++++++++++++++-------
 tools/testing/cxl/test/hmem_test.c |   3 +-
 tools/testing/cxl/test/mock.h      |   2 +
 5 files changed, 720 insertions(+), 203 deletions(-)
 create mode 100644 tools/testing/cxl/test/accel.c


base-commit: 96ddf1af34f5f9e29891a5bfb7a18dd0a5bab9d6
-- 
2.54.0