x86/resctrl: Support Sub-NUMA cluster mode SNC6

Support Sub-NUMA cluster mode with 6 nodes per L3 cache (SNC6) on some
Intel platforms.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/r/20241031220213.17991-1-tony.luck@intel.com
This commit is contained in:
Tony Luck 2024-10-31 15:02:13 -07:00 committed by Borislav Petkov (AMD)
parent 29eaa79583
commit 9bce6e94c4

View File

@ -1158,11 +1158,12 @@ static __init int snc_get_config(void)
ret = cpus_per_l3 / cpus_per_node;
/* sanity check: Only valid results are 1, 2, 3, 4 */
/* sanity check: Only valid results are 1, 2, 3, 4, 6 */
switch (ret) {
case 1:
break;
case 2 ... 4:
case 6:
pr_info("Sub-NUMA Cluster mode detected with %d nodes per L3 cache\n", ret);
rdt_resources_all[RDT_RESOURCE_L3].r_resctrl.mon_scope = RESCTRL_L3_NODE;
break;