From patchwork Thu Nov 30 00:34:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Luck, Tony" X-Patchwork-Id: 171657 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:bcd1:0:b0:403:3b70:6f57 with SMTP id r17csp67409vqy; Wed, 29 Nov 2023 16:34:43 -0800 (PST) X-Google-Smtp-Source: AGHT+IGNxuw1ytHs3zzkmzj1JnZn6zS0AF/MhoiY4bk0JA9I9pcx4YVHrOgImUJuSZGQkEwpgAB5 X-Received: by 2002:a17:902:7fca:b0:1cc:501b:1d13 with SMTP id t10-20020a1709027fca00b001cc501b1d13mr20001159plb.40.1701304483588; Wed, 29 Nov 2023 16:34:43 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1701304483; cv=none; d=google.com; s=arc-20160816; b=Mpe+18BX2O3IlcevawMgP1JkriqSdIiJcjSd57cDFkKiKOsUl9V/lFNpOJxYvRJ63V /HidX8k0DOEG1N+vCx6KiYfOOx/aoo89+kfZda0YstuAcfzoBYzqHwnHFy6LIft7XYQc JhNzCVy6QV3oWtpUHXF9IZ2WFEpUA1LmBw5ODPtwOT4vqMdHYcVatkNfoulhaq0hZow5 9MfROjTFbc2XXzGSLbL5DbwjLsR0Leel/PoXBFuiovkhLTyPMm6Hq2i91rSXFjE5ygON SWZhES0ksPiyqcJBwwi2DfhxVXAVo8tgszvWufJuYrgwqkYTxD6ya3uObWwm7Oz8MNu3 PWFg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=GUc6uy86jKiBqr1jqNTLQC11o3wy1qGFbYYeZ0XP+KE=; fh=Vn7xSirI6nqm5i0/AysSYQOSFcHB81/IRDfzPMkc31I=; b=UTW3dxCCpAbh1u9th/n5OQoth5firoge6fFNjyYMcitX9zFYnfNLCh6G/fGrv80vM8 Y7Wp4DNkG9AFt/oN4Jv5H7zTmIGz69sNIs2l36xdmIhBRC+tV5ZMWvFV1C2jFyi3SnqO duEyeV0gGwSlJ389IbBasffGCAy0kQq5AF2T1ooNe7AoPlE8+yGazzv+nlRcaxrm8ipR WftKEAalKe3VPwRucA5+3e034NLQaMjkYSecaY0fD8cHrJJYIDoCIYIxC0hxDCSzE8xt wHNvY5Lr1vBNdP2NhbntL9R3s6kcrHrHVaypvcp9dDClBslqaZa6hkms2f7F2g8CQoqy 2Rzw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=UvoIQEjL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from snail.vger.email (snail.vger.email. [23.128.96.37]) by mx.google.com with ESMTPS id l8-20020a170902f68800b001cc5f995bccsi15389943plg.182.2023.11.29.16.34.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Nov 2023 16:34:43 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=UvoIQEjL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 8E285802C691; Wed, 29 Nov 2023 16:34:42 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343796AbjK3Ae2 (ORCPT + 99 others); Wed, 29 Nov 2023 19:34:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343824AbjK3AeY (ORCPT ); Wed, 29 Nov 2023 19:34:24 -0500 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40E99BC; Wed, 29 Nov 2023 16:34:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701304469; x=1732840469; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZQhaaDWdGdffVS9DDayZaMa31LWXpo6yJsiWEMv1xzA=; b=UvoIQEjLCngr9iwmYH6YC1Y4j539pI04qTCv7njzzsrmfih5yd3LaCEf /MlOUHllovdhtcpI18QaGp7Sxrhff/XZK1Ak6i8OUP7fE3E5uZDvW0ckR Y9BLAvJEgYbHH0dKtGCZUkxVRfJQ3LzhrhJvbeEEOAEVYtJUTPwyerZs6 V/5LGxTN8GlyJLGyCUhS52um8NxiAJwFrrLwfFhDACvwi8B0CXTI5x4+D /+elKlko2qhf5D9my8jyjEt/uHRo7JZMEcaEfpASHZUd+H7cqz0UT26kG gR0JH8Pp4L84P9H8YWlPIe34fad9pRNjP3HBG8S6aly2BGnrz918rHYPf g==; X-IronPort-AV: E=McAfee;i="6600,9927,10909"; a="392990613" X-IronPort-AV: E=Sophos;i="6.04,237,1695711600"; d="scan'208";a="392990613" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2023 16:34:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10909"; a="762499571" X-IronPort-AV: E=Sophos;i="6.04,237,1695711600"; d="scan'208";a="762499571" Received: from agluck-desk3.sc.intel.com ([172.25.222.74]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2023 16:34:25 -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 , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, patches@lists.linux.dev, Tony Luck , Shaopeng Tan Subject: [PATCH v12 2/8] x86/resctrl: Prepare to split rdt_domain structure Date: Wed, 29 Nov 2023 16:34:12 -0800 Message-ID: <20231130003418.89964-3-tony.luck@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231130003418.89964-1-tony.luck@intel.com> References: <20231109230915.73600-1-tony.luck@intel.com> <20231130003418.89964-1-tony.luck@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Wed, 29 Nov 2023 16:34:42 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1778376859011896022 X-GMAIL-MSGID: 1783947049966941831 The rdt_domain structure is used for both control and monitor features. It is about to be split into separate structures for these two usages because the scope for control and monitoring features for a resource will be different for future resources. To allow for common code that scans a list of domains looking for a specific domain id, move all the common fields ("list", "id", "cpu_mask") into their own structure within the rdt_domain structure. Signed-off-by: Tony Luck Reviewed-by: Reinette Chatre Reviewed-by: Shaopeng Tan Tested-by: Shaopeng Tan --- include/linux/resctrl.h | 16 ++++-- arch/x86/kernel/cpu/resctrl/core.c | 26 +++++----- arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 22 ++++----- arch/x86/kernel/cpu/resctrl/monitor.c | 10 ++-- arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 14 +++--- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 60 +++++++++++------------ 6 files changed, 78 insertions(+), 70 deletions(-) diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index 7d4eb7df611d..c4067150a6b7 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -53,10 +53,20 @@ struct resctrl_staged_config { }; /** - * struct rdt_domain - group of CPUs sharing a resctrl resource + * struct rdt_domain_hdr - common header for different domain types * @list: all instances of this resource * @id: unique id for this instance * @cpu_mask: which CPUs share this resource + */ +struct rdt_domain_hdr { + struct list_head list; + int id; + struct cpumask cpu_mask; +}; + +/** + * struct rdt_domain - group of CPUs sharing a resctrl resource + * @hdr: common header for different domain types * @rmid_busy_llc: bitmap of which limbo RMIDs are above threshold * @mbm_total: saved state for MBM total bandwidth * @mbm_local: saved state for MBM local bandwidth @@ -71,9 +81,7 @@ struct resctrl_staged_config { * by closid */ struct rdt_domain { - struct list_head list; - int id; - struct cpumask cpu_mask; + struct rdt_domain_hdr hdr; unsigned long *rmid_busy_llc; struct mbm_state *mbm_total; struct mbm_state *mbm_local; diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c index fd113bc29d4e..62a989fd950d 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -356,9 +356,9 @@ struct rdt_domain *get_domain_from_cpu(int cpu, struct rdt_resource *r) { struct rdt_domain *d; - list_for_each_entry(d, &r->domains, list) { + list_for_each_entry(d, &r->domains, hdr.list) { /* Find the domain that contains this CPU */ - if (cpumask_test_cpu(cpu, &d->cpu_mask)) + if (cpumask_test_cpu(cpu, &d->hdr.cpu_mask)) return d; } @@ -402,12 +402,12 @@ struct rdt_domain *rdt_find_domain(struct rdt_resource *r, int id, struct list_head *l; list_for_each(l, &r->domains) { - d = list_entry(l, struct rdt_domain, list); + d = list_entry(l, struct rdt_domain, hdr.list); /* When id is found, return its domain. */ - if (id == d->id) + if (id == d->hdr.id) return d; /* Stop searching when finding id's position in sorted list. */ - if (id < d->id) + if (id < d->hdr.id) break; } @@ -530,7 +530,7 @@ static void domain_add_cpu(int cpu, struct rdt_resource *r) d = rdt_find_domain(r, id, &add_pos); if (d) { - cpumask_set_cpu(cpu, &d->cpu_mask); + cpumask_set_cpu(cpu, &d->hdr.cpu_mask); if (r->cache.arch_has_per_cpu_cfg) rdt_domain_reconfigure_cdp(r); return; @@ -541,8 +541,8 @@ static void domain_add_cpu(int cpu, struct rdt_resource *r) return; d = &hw_dom->d_resctrl; - d->id = id; - cpumask_set_cpu(cpu, &d->cpu_mask); + d->hdr.id = id; + cpumask_set_cpu(cpu, &d->hdr.cpu_mask); rdt_domain_reconfigure_cdp(r); @@ -556,11 +556,11 @@ static void domain_add_cpu(int cpu, struct rdt_resource *r) return; } - list_add_tail(&d->list, add_pos); + list_add_tail(&d->hdr.list, add_pos); err = resctrl_online_domain(r, d); if (err) { - list_del(&d->list); + list_del(&d->hdr.list); domain_free(hw_dom); } } @@ -584,10 +584,10 @@ static void domain_remove_cpu(int cpu, struct rdt_resource *r) } hw_dom = resctrl_to_arch_dom(d); - cpumask_clear_cpu(cpu, &d->cpu_mask); - if (cpumask_empty(&d->cpu_mask)) { + cpumask_clear_cpu(cpu, &d->hdr.cpu_mask); + if (cpumask_empty(&d->hdr.cpu_mask)) { resctrl_offline_domain(r, d); - list_del(&d->list); + list_del(&d->hdr.list); /* * rdt_domain "d" is going to be freed below, so clear diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c index 3f8891d57fac..23f8258d36a8 100644 --- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c +++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c @@ -67,7 +67,7 @@ int parse_bw(struct rdt_parse_data *data, struct resctrl_schema *s, cfg = &d->staged_config[s->conf_type]; if (cfg->have_new_ctrl) { - rdt_last_cmd_printf("Duplicate domain %d\n", d->id); + rdt_last_cmd_printf("Duplicate domain %d\n", d->hdr.id); return -EINVAL; } @@ -146,7 +146,7 @@ int parse_cbm(struct rdt_parse_data *data, struct resctrl_schema *s, cfg = &d->staged_config[s->conf_type]; if (cfg->have_new_ctrl) { - rdt_last_cmd_printf("Duplicate domain %d\n", d->id); + rdt_last_cmd_printf("Duplicate domain %d\n", d->hdr.id); return -EINVAL; } @@ -226,8 +226,8 @@ static int parse_line(char *line, struct resctrl_schema *s, return -EINVAL; } dom = strim(dom); - list_for_each_entry(d, &r->domains, list) { - if (d->id == dom_id) { + list_for_each_entry(d, &r->domains, hdr.list) { + if (d->hdr.id == dom_id) { data.buf = dom; data.rdtgrp = rdtgrp; if (r->parse_ctrlval(&data, s, d)) @@ -274,7 +274,7 @@ static bool apply_config(struct rdt_hw_domain *hw_dom, struct rdt_domain *dom = &hw_dom->d_resctrl; if (cfg->new_ctrl != hw_dom->ctrl_val[idx]) { - cpumask_set_cpu(cpumask_any(&dom->cpu_mask), cpu_mask); + cpumask_set_cpu(cpumask_any(&dom->hdr.cpu_mask), cpu_mask); hw_dom->ctrl_val[idx] = cfg->new_ctrl; return true; @@ -291,7 +291,7 @@ int resctrl_arch_update_one(struct rdt_resource *r, struct rdt_domain *d, u32 idx = get_config_index(closid, t); struct msr_param msr_param; - if (!cpumask_test_cpu(smp_processor_id(), &d->cpu_mask)) + if (!cpumask_test_cpu(smp_processor_id(), &d->hdr.cpu_mask)) return -EINVAL; hw_dom->ctrl_val[idx] = cfg_val; @@ -318,7 +318,7 @@ int resctrl_arch_update_domains(struct rdt_resource *r, u32 closid) return -ENOMEM; msr_param.res = NULL; - list_for_each_entry(d, &r->domains, list) { + list_for_each_entry(d, &r->domains, hdr.list) { hw_dom = resctrl_to_arch_dom(d); for (t = 0; t < CDP_NUM_TYPES; t++) { cfg = &hw_dom->d_resctrl.staged_config[t]; @@ -466,7 +466,7 @@ static void show_doms(struct seq_file *s, struct resctrl_schema *schema, int clo u32 ctrl_val; seq_printf(s, "%*s:", max_name_width, schema->name); - list_for_each_entry(dom, &r->domains, list) { + list_for_each_entry(dom, &r->domains, hdr.list) { if (sep) seq_puts(s, ";"); @@ -476,7 +476,7 @@ static void show_doms(struct seq_file *s, struct resctrl_schema *schema, int clo ctrl_val = resctrl_arch_get_config(r, dom, closid, schema->conf_type); - seq_printf(s, r->format_str, dom->id, max_data_width, + seq_printf(s, r->format_str, dom->hdr.id, max_data_width, ctrl_val); sep = true; } @@ -505,7 +505,7 @@ int rdtgroup_schemata_show(struct kernfs_open_file *of, } else { seq_printf(s, "%s:%d=%x\n", rdtgrp->plr->s->res->name, - rdtgrp->plr->d->id, + rdtgrp->plr->d->hdr.id, rdtgrp->plr->cbm); } } else { @@ -536,7 +536,7 @@ void mon_event_read(struct rmid_read *rr, struct rdt_resource *r, rr->val = 0; rr->first = first; - smp_call_function_any(&d->cpu_mask, mon_event_count, rr, 1); + smp_call_function_any(&d->hdr.cpu_mask, mon_event_count, rr, 1); } int rdtgroup_mondata_show(struct seq_file *m, void *arg) diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c index f136ac046851..dd0ea1bc0092 100644 --- a/arch/x86/kernel/cpu/resctrl/monitor.c +++ b/arch/x86/kernel/cpu/resctrl/monitor.c @@ -238,7 +238,7 @@ int resctrl_arch_rmid_read(struct rdt_resource *r, struct rdt_domain *d, u64 msr_val, chunks; int ret; - if (!cpumask_test_cpu(smp_processor_id(), &d->cpu_mask)) + if (!cpumask_test_cpu(smp_processor_id(), &d->hdr.cpu_mask)) return -EINVAL; ret = __rmid_read(rmid, eventid, &msr_val); @@ -340,8 +340,8 @@ static void add_rmid_to_limbo(struct rmid_entry *entry) entry->busy = 0; cpu = get_cpu(); - list_for_each_entry(d, &r->domains, list) { - if (cpumask_test_cpu(cpu, &d->cpu_mask)) { + list_for_each_entry(d, &r->domains, hdr.list) { + if (cpumask_test_cpu(cpu, &d->hdr.cpu_mask)) { err = resctrl_arch_rmid_read(r, d, entry->rmid, QOS_L3_OCCUP_EVENT_ID, &val); @@ -661,7 +661,7 @@ void cqm_setup_limbo_handler(struct rdt_domain *dom, unsigned long delay_ms) unsigned long delay = msecs_to_jiffies(delay_ms); int cpu; - cpu = cpumask_any(&dom->cpu_mask); + cpu = cpumask_any(&dom->hdr.cpu_mask); dom->cqm_work_cpu = cpu; schedule_delayed_work_on(cpu, &dom->cqm_limbo, delay); @@ -708,7 +708,7 @@ void mbm_setup_overflow_handler(struct rdt_domain *dom, unsigned long delay_ms) if (!static_branch_likely(&rdt_mon_enable_key)) return; - cpu = cpumask_any(&dom->cpu_mask); + cpu = cpumask_any(&dom->hdr.cpu_mask); dom->mbm_work_cpu = cpu; schedule_delayed_work_on(cpu, &dom->mbm_over, delay); } diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c index 2a682da9f43a..fcbd99e2eb66 100644 --- a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c +++ b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c @@ -221,7 +221,7 @@ static int pseudo_lock_cstates_constrain(struct pseudo_lock_region *plr) int cpu; int ret; - for_each_cpu(cpu, &plr->d->cpu_mask) { + for_each_cpu(cpu, &plr->d->hdr.cpu_mask) { pm_req = kzalloc(sizeof(*pm_req), GFP_KERNEL); if (!pm_req) { rdt_last_cmd_puts("Failure to allocate memory for PM QoS\n"); @@ -301,7 +301,7 @@ static int pseudo_lock_region_init(struct pseudo_lock_region *plr) return -ENODEV; /* Pick the first cpu we find that is associated with the cache. */ - plr->cpu = cpumask_first(&plr->d->cpu_mask); + plr->cpu = cpumask_first(&plr->d->hdr.cpu_mask); if (!cpu_online(plr->cpu)) { rdt_last_cmd_printf("CPU %u associated with cache not online\n", @@ -856,10 +856,10 @@ bool rdtgroup_pseudo_locked_in_hierarchy(struct rdt_domain *d) * associated with them. */ for_each_alloc_capable_rdt_resource(r) { - list_for_each_entry(d_i, &r->domains, list) { + list_for_each_entry(d_i, &r->domains, hdr.list) { if (d_i->plr) cpumask_or(cpu_with_psl, cpu_with_psl, - &d_i->cpu_mask); + &d_i->hdr.cpu_mask); } } @@ -867,7 +867,7 @@ bool rdtgroup_pseudo_locked_in_hierarchy(struct rdt_domain *d) * Next test if new pseudo-locked region would intersect with * existing region. */ - if (cpumask_intersects(&d->cpu_mask, cpu_with_psl)) + if (cpumask_intersects(&d->hdr.cpu_mask, cpu_with_psl)) ret = true; free_cpumask_var(cpu_with_psl); @@ -1199,7 +1199,7 @@ static int pseudo_lock_measure_cycles(struct rdtgroup *rdtgrp, int sel) } plr->thread_done = 0; - cpu = cpumask_first(&plr->d->cpu_mask); + cpu = cpumask_first(&plr->d->hdr.cpu_mask); if (!cpu_online(cpu)) { ret = -ENODEV; goto out; @@ -1529,7 +1529,7 @@ static int pseudo_lock_dev_mmap(struct file *filp, struct vm_area_struct *vma) * may be scheduled elsewhere and invalidate entries in the * pseudo-locked region. */ - if (!cpumask_subset(current->cpus_ptr, &plr->d->cpu_mask)) { + if (!cpumask_subset(current->cpus_ptr, &plr->d->hdr.cpu_mask)) { mutex_unlock(&rdtgroup_mutex); return -EINVAL; } diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index c44be64d65ec..04d32602ac33 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -91,7 +91,7 @@ void rdt_staged_configs_clear(void) lockdep_assert_held(&rdtgroup_mutex); for_each_alloc_capable_rdt_resource(r) { - list_for_each_entry(dom, &r->domains, list) + list_for_each_entry(dom, &r->domains, hdr.list) memset(dom->staged_config, 0, sizeof(dom->staged_config)); } } @@ -295,7 +295,7 @@ static int rdtgroup_cpus_show(struct kernfs_open_file *of, rdt_last_cmd_puts("Cache domain offline\n"); ret = -ENODEV; } else { - mask = &rdtgrp->plr->d->cpu_mask; + mask = &rdtgrp->plr->d->hdr.cpu_mask; seq_printf(s, is_cpu_list(of) ? "%*pbl\n" : "%*pb\n", cpumask_pr_args(mask)); @@ -984,12 +984,12 @@ static int rdt_bit_usage_show(struct kernfs_open_file *of, mutex_lock(&rdtgroup_mutex); hw_shareable = r->cache.shareable_bits; - list_for_each_entry(dom, &r->domains, list) { + list_for_each_entry(dom, &r->domains, hdr.list) { if (sep) seq_putc(seq, ';'); sw_shareable = 0; exclusive = 0; - seq_printf(seq, "%d=", dom->id); + seq_printf(seq, "%d=", dom->hdr.id); for (i = 0; i < closids_supported(); i++) { if (!closid_allocated(i)) continue; @@ -1302,7 +1302,7 @@ static bool rdtgroup_mode_test_exclusive(struct rdtgroup *rdtgrp) if (r->rid == RDT_RESOURCE_MBA || r->rid == RDT_RESOURCE_SMBA) continue; has_cache = true; - list_for_each_entry(d, &r->domains, list) { + list_for_each_entry(d, &r->domains, hdr.list) { ctrl = resctrl_arch_get_config(r, d, closid, s->conf_type); if (rdtgroup_cbm_overlaps(s, d, ctrl, closid, false)) { @@ -1417,7 +1417,7 @@ unsigned int rdtgroup_cbm_to_size(struct rdt_resource *r, return size; num_b = bitmap_weight(&cbm, r->cache.cbm_len); - ci = get_cpu_cacheinfo(cpumask_any(&d->cpu_mask)); + ci = get_cpu_cacheinfo(cpumask_any(&d->hdr.cpu_mask)); for (i = 0; i < ci->num_leaves; i++) { if (ci->info_list[i].level == r->scope) { size = ci->info_list[i].size / r->cache.cbm_len * num_b; @@ -1465,7 +1465,7 @@ static int rdtgroup_size_show(struct kernfs_open_file *of, size = rdtgroup_cbm_to_size(rdtgrp->plr->s->res, rdtgrp->plr->d, rdtgrp->plr->cbm); - seq_printf(s, "%d=%u\n", rdtgrp->plr->d->id, size); + seq_printf(s, "%d=%u\n", rdtgrp->plr->d->hdr.id, size); } goto out; } @@ -1477,7 +1477,7 @@ static int rdtgroup_size_show(struct kernfs_open_file *of, type = schema->conf_type; sep = false; seq_printf(s, "%*s:", max_name_width, schema->name); - list_for_each_entry(d, &r->domains, list) { + list_for_each_entry(d, &r->domains, hdr.list) { if (sep) seq_putc(s, ';'); if (rdtgrp->mode == RDT_MODE_PSEUDO_LOCKSETUP) { @@ -1495,7 +1495,7 @@ static int rdtgroup_size_show(struct kernfs_open_file *of, else size = rdtgroup_cbm_to_size(r, d, ctrl); } - seq_printf(s, "%d=%u", d->id, size); + seq_printf(s, "%d=%u", d->hdr.id, size); sep = true; } seq_putc(s, '\n'); @@ -1555,7 +1555,7 @@ static void mon_event_config_read(void *info) static void mondata_config_read(struct rdt_domain *d, struct mon_config_info *mon_info) { - smp_call_function_any(&d->cpu_mask, mon_event_config_read, mon_info, 1); + smp_call_function_any(&d->hdr.cpu_mask, mon_event_config_read, mon_info, 1); } static int mbm_config_show(struct seq_file *s, struct rdt_resource *r, u32 evtid) @@ -1566,7 +1566,7 @@ static int mbm_config_show(struct seq_file *s, struct rdt_resource *r, u32 evtid mutex_lock(&rdtgroup_mutex); - list_for_each_entry(dom, &r->domains, list) { + list_for_each_entry(dom, &r->domains, hdr.list) { if (sep) seq_puts(s, ";"); @@ -1574,7 +1574,7 @@ static int mbm_config_show(struct seq_file *s, struct rdt_resource *r, u32 evtid mon_info.evtid = evtid; mondata_config_read(dom, &mon_info); - seq_printf(s, "%d=0x%02x", dom->id, mon_info.mon_config); + seq_printf(s, "%d=0x%02x", dom->hdr.id, mon_info.mon_config); sep = true; } seq_puts(s, "\n"); @@ -1646,7 +1646,7 @@ static int mbm_config_write_domain(struct rdt_resource *r, * are scoped at the domain level. Writing any of these MSRs * on one CPU is observed by all the CPUs in the domain. */ - smp_call_function_any(&d->cpu_mask, mon_event_config_write, + smp_call_function_any(&d->hdr.cpu_mask, mon_event_config_write, &mon_info, 1); /* @@ -1689,8 +1689,8 @@ static int mon_config_write(struct rdt_resource *r, char *tok, u32 evtid) return -EINVAL; } - list_for_each_entry(d, &r->domains, list) { - if (d->id == dom_id) { + list_for_each_entry(d, &r->domains, hdr.list) { + if (d->hdr.id == dom_id) { ret = mbm_config_write_domain(r, d, evtid, val); if (ret) return -EINVAL; @@ -2232,14 +2232,14 @@ static int set_cache_qos_cfg(int level, bool enable) return -ENOMEM; r_l = &rdt_resources_all[level].r_resctrl; - list_for_each_entry(d, &r_l->domains, list) { + list_for_each_entry(d, &r_l->domains, hdr.list) { if (r_l->cache.arch_has_per_cpu_cfg) /* Pick all the CPUs in the domain instance */ - for_each_cpu(cpu, &d->cpu_mask) + for_each_cpu(cpu, &d->hdr.cpu_mask) cpumask_set_cpu(cpu, cpu_mask); else /* Pick one CPU from each domain instance to update MSR */ - cpumask_set_cpu(cpumask_any(&d->cpu_mask), cpu_mask); + cpumask_set_cpu(cpumask_any(&d->hdr.cpu_mask), cpu_mask); } /* Update QOS_CFG MSR on all the CPUs in cpu_mask */ @@ -2268,7 +2268,7 @@ void rdt_domain_reconfigure_cdp(struct rdt_resource *r) static int mba_sc_domain_allocate(struct rdt_resource *r, struct rdt_domain *d) { u32 num_closid = resctrl_arch_get_num_closid(r); - int cpu = cpumask_any(&d->cpu_mask); + int cpu = cpumask_any(&d->hdr.cpu_mask); int i; d->mbps_val = kcalloc_node(num_closid, sizeof(*d->mbps_val), @@ -2317,7 +2317,7 @@ static int set_mba_sc(bool mba_sc) r->membw.mba_sc = mba_sc; - list_for_each_entry(d, &r->domains, list) { + list_for_each_entry(d, &r->domains, hdr.list) { for (i = 0; i < num_closid; i++) d->mbps_val[i] = MBA_MAX_MBPS; } @@ -2653,7 +2653,7 @@ static int rdt_get_tree(struct fs_context *fc) if (is_mbm_enabled()) { r = &rdt_resources_all[RDT_RESOURCE_L3].r_resctrl; - list_for_each_entry(dom, &r->domains, list) + list_for_each_entry(dom, &r->domains, hdr.list) mbm_setup_overflow_handler(dom, MBM_OVERFLOW_INTERVAL); } @@ -2780,9 +2780,9 @@ static int reset_all_ctrls(struct rdt_resource *r) * CBMs in all domains to the maximum mask value. Pick one CPU * from each domain to update the MSRs below. */ - list_for_each_entry(d, &r->domains, list) { + list_for_each_entry(d, &r->domains, hdr.list) { hw_dom = resctrl_to_arch_dom(d); - cpumask_set_cpu(cpumask_any(&d->cpu_mask), cpu_mask); + cpumask_set_cpu(cpumask_any(&d->hdr.cpu_mask), cpu_mask); for (i = 0; i < hw_res->num_closid; i++) hw_dom->ctrl_val[i] = r->default_ctrl; @@ -2986,7 +2986,7 @@ static int mkdir_mondata_subdir(struct kernfs_node *parent_kn, char name[32]; int ret; - sprintf(name, "mon_%s_%02d", r->name, d->id); + sprintf(name, "mon_%s_%02d", r->name, d->hdr.id); /* create the directory */ kn = kernfs_create_dir(parent_kn, name, parent_kn->mode, prgrp); if (IS_ERR(kn)) @@ -3002,7 +3002,7 @@ static int mkdir_mondata_subdir(struct kernfs_node *parent_kn, } priv.u.rid = r->rid; - priv.u.domid = d->id; + priv.u.domid = d->hdr.id; list_for_each_entry(mevt, &r->evt_list, list) { priv.u.evtid = mevt->evtid; ret = mon_addfile(kn, mevt->name, priv.priv); @@ -3050,7 +3050,7 @@ static int mkdir_mondata_subdir_alldom(struct kernfs_node *parent_kn, struct rdt_domain *dom; int ret; - list_for_each_entry(dom, &r->domains, list) { + list_for_each_entry(dom, &r->domains, hdr.list) { ret = mkdir_mondata_subdir(parent_kn, dom, r, prgrp); if (ret) return ret; @@ -3209,7 +3209,7 @@ static int __init_one_rdt_domain(struct rdt_domain *d, struct resctrl_schema *s, */ tmp_cbm = cfg->new_ctrl; if (bitmap_weight(&tmp_cbm, r->cache.cbm_len) < r->cache.min_cbm_bits) { - rdt_last_cmd_printf("No space on %s:%d\n", s->name, d->id); + rdt_last_cmd_printf("No space on %s:%d\n", s->name, d->hdr.id); return -ENOSPC; } cfg->have_new_ctrl = true; @@ -3232,7 +3232,7 @@ static int rdtgroup_init_cat(struct resctrl_schema *s, u32 closid) struct rdt_domain *d; int ret; - list_for_each_entry(d, &s->res->domains, list) { + list_for_each_entry(d, &s->res->domains, hdr.list) { ret = __init_one_rdt_domain(d, s, closid); if (ret < 0) return ret; @@ -3247,7 +3247,7 @@ static void rdtgroup_init_mba(struct rdt_resource *r, u32 closid) struct resctrl_staged_config *cfg; struct rdt_domain *d; - list_for_each_entry(d, &r->domains, list) { + list_for_each_entry(d, &r->domains, hdr.list) { if (is_mba_sc(r)) { d->mbps_val[closid] = MBA_MAX_MBPS; continue; @@ -3864,7 +3864,7 @@ void resctrl_offline_domain(struct rdt_resource *r, struct rdt_domain *d) * per domain monitor data directories. */ if (static_branch_unlikely(&rdt_mon_enable_key)) - rmdir_mondata_subdir_allrdtgrp(r, d->id); + rmdir_mondata_subdir_allrdtgrp(r, d->hdr.id); if (is_mbm_enabled()) cancel_delayed_work(&d->mbm_over);