Re: [PATCH v9 13/27] cxl: prepare memdev creation for type2

On Mon, 30 Dec 2024 21:44:31 +0000
[off-list ref] wrote:

From: Alejandro Lucero <redacted>

Current cxl core is relying on a CXL_DEVTYPE_CLASSMEM type device when
creating a memdev leading to problems when obtaining cxl_memdev_state
references from a CXL_DEVTYPE_DEVMEM type. This last device type is
managed by a specific vendor driver and does not need same sysfs files
since not userspace intervention is expected.

Create a new cxl_mem device type with no attributes for Type2.

Avoid debugfs files relying on existence of cxl_memdev_state.

"Avoid debugfs files that rely on existence of cxl_memdev_state."

Currently it means you keep the files but break their reliance
on that state. So subtly different from what is implemented.

Make devm_cxl_add_memdev accesible from a accel driver.

Signed-off-by: Alejandro Lucero <redacted>

Reviewed-by: Jonathan Cameron <redacted>