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authorShuo Liu <shuo.liu@intel.com>2024-03-27 04:52:37 +0800
committerLean Sheng Tan <sheng.tan@9elements.com>2024-05-28 09:47:35 +0000
commit70de5bf9fdfeb33dfc717512e400b56ab02b165d (patch)
treee68fbbe6bf7c2547dc1623948564f004abdc55de /payloads/libpayload/README
parentbd33b6ab9fde904dd8a532ce20e8a6331ba8dafb (diff)
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>
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