Currently supported resctrl features are all domain scoped the same as the scope of the L2 or L3 caches. Add RESCTRL_NODE as a new option for features that are scoped at the same granularity as NUMA nodes. This is needed for Intel's Sub-NUMA Cluster (SNC) feature where monitoring features are node scoped. Reviewed-by: Peter Newman <peternewman@xxxxxxxxxx> Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx> --- No changes since v9 include/linux/resctrl.h | 1 + arch/x86/kernel/cpu/resctrl/core.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index 36503e8870cd..f42a5e59027b 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -172,6 +172,7 @@ struct resctrl_schema; enum resctrl_scope { RESCTRL_L2_CACHE = 2, RESCTRL_L3_CACHE = 3, + RESCTRL_NODE, }; /** diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c index 6bae0a658b94..d2c1aa8411a3 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -502,6 +502,8 @@ static int get_domain_id_from_scope(int cpu, enum resctrl_scope scope) case RESCTRL_L2_CACHE: case RESCTRL_L3_CACHE: return get_cpu_cacheinfo_id(cpu, scope); + case RESCTRL_NODE: + return cpu_to_node(cpu); default: break; } -- 2.41.0