Commit 9bce6e94 authored by Tony Luck's avatar Tony Luck Committed by Borislav Petkov (AMD)
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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: default avatarTony Luck <tony.luck@intel.com>
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: default avatarReinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/r/20241031220213.17991-1-tony.luck@intel.com
parent 29eaa795

arch/x86/kernel/cpu/resctrl/monitor.c

+2 −1
Original line number Diff line number Diff line
@@ -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;