cxl/hdm: Add BI coherency support for endpoint decoders

Cache the HDM decoder's Supported Coherency Models on struct cxl_hdm.
A later patch has region attach consult it to verify the HDM supports
the region's coherency type.

For uncommitted endpoint decoders, init_hdm_decoder() defaults
target_type from supported_coherency: Type 3 devices default to
HDM-DB when the HDM is device-coherent-only, HDM-H otherwise.

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
Reviewed-by: Li Ming <ming.li@zohomail.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://patch.msgid.link/ffffd67bc63fe0b6fcd60f9d64d8e5467a5eff1c.1794172701.git.dave@stgolabs.net
Signed-off-by: Dave Jiang <dave.jiang@intel.com>

0 files changed, 0 insertions, 0 deletions