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

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

On 6/29/26 3:10 PM, Dave Jiang wrote:
> 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

Applied to cxl/next with change from Alison
1c6b4ceafc3b cxl/test: Add cxl_test accelerator driver
b3df5a5a38c3 cxl/test: Fixup hdm init for auto region to support type2
98ba41c3236b cxl/test: Propagate -ENOMEM on platform_device_alloc() failures
6b2e585142e6 cxl/test: Add hierarchy enumeration support for type2 device
a6d37152d284 cxl/test: Refactor platform device enumerations
fc8fc576d909 cxl/test: Add type2 support for mock CFMWS0
afae0fa7c6b1 cxl/test: Add test for module parameters