soc/intel/xeon_sp: Add PD_TYPE_CLUSTER

Add a new proximity type to represent the sub-NUMA cluster (SNC).

This patch adds necessary Xeon-SP common code level support for
SNC support. When SNC on, each SNC cluster will have a proximity
domain. DIMMs and CPU cores are attached to SNC proximity domains
instead of the processor proximity domains.

With SNC, there are 3 types of proximity domains,
PD_TYPE_PROCESSOR, PD_TYPE_GENERIC_INITIATOR and PD_TYPE_CLUSTER.
proximity domain type checks in Xeon-SP codes are updated to
correctly handle the adding of the new type.

This patch doesn't actually enable SNC. To fully enable SNC, SoC
codes need to override soc_get_cluster_count(), soc_set_cpu_node_
id() and memory_to_pd(), and call soc_set_cpu_node_id() in its
per-CPU init routine.

Change-Id: I32558983780f302ff4893901540a90baebf47add
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Co-authored-by: Ziang Wang <ziang.wang@intel.com>
Co-authored-by: Gang Chen <gang.c.chen@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81443
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>

0 files changed, 0 insertions, 0 deletions