From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966280AbeBMXwL (ORCPT ); Tue, 13 Feb 2018 18:52:11 -0500 Received: from mga17.intel.com ([192.55.52.151]:53394 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966201AbeBMXtg (ORCPT ); Tue, 13 Feb 2018 18:49:36 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,509,1511856000"; d="scan'208";a="29822331" From: Reinette Chatre To: tglx@linutronix.de, fenghua.yu@intel.com, tony.luck@intel.com Cc: gavin.hindman@intel.com, vikas.shivappa@linux.intel.com, dave.hansen@intel.com, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, linux-kernel@vger.kernel.org, Reinette Chatre Subject: [RFC PATCH V2 11/22] x86/intel_rdt: Associate pseudo-locked regions with its domain Date: Tue, 13 Feb 2018 07:46:55 -0800 Message-Id: <216ad1ef8314dc578a900ff8b06248464f5aa2ee.1518443616.git.reinette.chatre@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org After a pseudo-locked region is locked it needs to be associated with the RDT domain representing the pseudo-locked cache so that its life cycle can be managed correctly. Only a single pseudo-locked region can exist on any cache instance so we maintain a single pointer to a pseudo-locked region from each RDT domain. Signed-off-by: Reinette Chatre --- arch/x86/kernel/cpu/intel_rdt.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h index 060a0976ac00..f0e020686e99 100644 --- a/arch/x86/kernel/cpu/intel_rdt.h +++ b/arch/x86/kernel/cpu/intel_rdt.h @@ -187,6 +187,8 @@ struct mbm_state { u64 prev_msr; }; +struct pseudo_lock_region; + /** * struct rdt_domain - group of cpus sharing an RDT resource * @list: all instances of this resource @@ -205,6 +207,7 @@ struct mbm_state { * @ctrl_val: array of cache or mem ctrl values (indexed by CLOSID) * @new_ctrl: new ctrl value to be loaded * @have_new_ctrl: did user provide new_ctrl for this domain + * @plr: pseudo-locked region associated with this domain */ struct rdt_domain { struct list_head list; @@ -220,6 +223,7 @@ struct rdt_domain { u32 *ctrl_val; u32 new_ctrl; bool have_new_ctrl; + struct pseudo_lock_region *plr; }; /** -- 2.13.6