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bh=KwqVlzMvCSatbSbhZi5QVyiYc25iBbPunJU/yJjlwi4=; b=YlhkDThUtyK3dyHS+SSTbN3jHytT051UisDWmSTYn6uW2N8kqegiMdyC LRYzfPAfWTQy6AG9yyXDs1lJyKnME8XgsdthHvP83Vu6sWmPXdBLbFrvi az6qaEflMOy4ru8Nxzkb4GLh6s9R8LvM/9FqDKPY7vvNMzJ8N3/YXBmUm PnoJyxlMisNzwJkoSdYqIgLLD7/4CJaxkBnnMmrotvQxMKj7kiVSZ5Qj2 tu60kJZKU5jDA2irDDNHcHa+bSBCIByCE3Tl+yvqKXbZedIL1D9YQfsMZ ubKpNE1sbJJMy21B0jRMKL5ZMAKIuuBWg56+AVLLd2Vdb6Kg05pCz8/pb A==; X-IronPort-AV: E=McAfee;i="6600,9927,10998"; a="3495553" X-IronPort-AV: E=Sophos;i="6.06,191,1705392000"; d="scan'208";a="3495553" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2024 11:37:20 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,191,1705392000"; d="scan'208";a="7485398" Received: from agluck-desk3.sc.intel.com ([172.25.222.105]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2024 11:37:20 -0800 From: Tony Luck To: Fenghua Yu , Reinette Chatre , Peter Newman , Jonathan Corbet , Shuah Khan , x86@kernel.org Cc: Shaopeng Tan , James Morse , Jamie Iles , Babu Moger , Randy Dunlap , Drew Fustini , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, patches@lists.linux.dev, Tony Luck Subject: [PATCH v15 5/8] x86/resctrl: Add node-scope to the options for feature scope Date: Wed, 28 Feb 2024 11:37:00 -0800 Message-ID: <20240228193717.8170-7-tony.luck@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240228112935.8087-tony.luck@intel.com> References: <20240228112215.8044-tony.luck@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792172786091561437 X-GMAIL-MSGID: 1792172786091561437 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. Signed-off-by: Tony Luck --- 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 1a4ac60522bb..87b360e87215 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -176,6 +176,7 @@ 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 cd58c9d4710f..c34ce367c456 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -510,6 +510,8 @@ 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; }