* [PATCH] x86/resctrl: Support Sub-NUMA cluster mode SNC6
@ 2024-10-31 22:02 Tony Luck
2024-11-06 0:41 ` Reinette Chatre
0 siblings, 1 reply; 2+ messages in thread
From: Tony Luck @ 2024-10-31 22:02 UTC (permalink / raw)
To: Fenghua Yu, Reinette Chatre, Maciej Wieczor-Retman, Peter Newman,
James Morse, Babu Moger, Drew Fustini, Dave Martin
Cc: Borislav Petkov, x86, linux-kernel, patches, Tony Luck
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>
---
arch/x86/kernel/cpu/resctrl/monitor.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c
index 851b561850e0..5fcb3d635d91 100644
--- a/arch/x86/kernel/cpu/resctrl/monitor.c
+++ b/arch/x86/kernel/cpu/resctrl/monitor.c
@@ -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;
--
2.47.0
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] x86/resctrl: Support Sub-NUMA cluster mode SNC6
2024-10-31 22:02 [PATCH] x86/resctrl: Support Sub-NUMA cluster mode SNC6 Tony Luck
@ 2024-11-06 0:41 ` Reinette Chatre
0 siblings, 0 replies; 2+ messages in thread
From: Reinette Chatre @ 2024-11-06 0:41 UTC (permalink / raw)
To: Tony Luck, Fenghua Yu, Maciej Wieczor-Retman, Peter Newman,
James Morse, Babu Moger, Drew Fustini, Dave Martin
Cc: Borislav Petkov, x86, linux-kernel, patches
Hi Tony,
On 10/31/24 3:02 PM, Tony Luck wrote:
> 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>
> ---
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reinette
^ permalink raw reply [flat|nested] 2+ messages in thread
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