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[209.132.180.67]) by mx.google.com with ESMTP id 191si56087860pgd.228.2018.11.23.23.42.35; Fri, 23 Nov 2018 23:42:49 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2407550AbeKWIac (ORCPT + 99 others); Fri, 23 Nov 2018 03:30:32 -0500 Received: from terminus.zytor.com ([198.137.202.136]:60021 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731179AbeKWIac (ORCPT ); Fri, 23 Nov 2018 03:30:32 -0500 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id wAMLmGpW3947421 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 22 Nov 2018 13:48:16 -0800 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id wAMLmGmX3947417; Thu, 22 Nov 2018 13:48:16 -0800 Date: Thu, 22 Nov 2018 13:48:16 -0800 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Babu Moger Message-ID: Cc: mingo@kernel.org, bp@suse.de, qianyue.zj@alibaba-inc.com, mingo@redhat.com, brijesh.singh@amd.com, Babu.Moger@amd.com, chang.seok.bae@intel.com, linux-kernel@vger.kernel.org, hpa@zytor.com, tony.luck@intel.com, reinette.chatre@intel.com, arnd@arndb.de, tglx@linutronix.de, babu.moger@amd.com, dima@arista.com, rian@alum.mit.edu, dwmw2@infradead.org, akpm@linux-foundation.org, sherry.hurwitz@amd.com, jpoimboe@redhat.com, pbonzini@redhat.com, peterz@infradead.org, suravee.suthikulpanit@amd.com, vkuznets@redhat.com, gregkh@linuxfoundation.org, jannh@google.com, rafael@kernel.org, kirill.shutemov@linux.intel.com, corbet@lwn.net, jroedel@suse.de, fenghua.yu@intel.com, xiaochen.shen@intel.com, puwen@hygon.cn, linux-doc@vger.kernel.org, mchehab+samsung@kernel.org, luto@kernel.org, pombredanne@nexb.com, davem@davemloft.net, kstewart@linuxfoundation.org, Thomas.Lendacky@amd.com Reply-To: gregkh@linuxfoundation.org, vkuznets@redhat.com, jannh@google.com, rafael@kernel.org, kirill.shutemov@linux.intel.com, fenghua.yu@intel.com, xiaochen.shen@intel.com, jroedel@suse.de, corbet@lwn.net, puwen@hygon.cn, linux-doc@vger.kernel.org, mchehab+samsung@kernel.org, kstewart@linuxfoundation.org, davem@davemloft.net, luto@kernel.org, pombredanne@nexb.com, Thomas.Lendacky@amd.com, qianyue.zj@alibaba-inc.com, mingo@kernel.org, bp@suse.de, Babu.Moger@amd.com, mingo@redhat.com, brijesh.singh@amd.com, chang.seok.bae@intel.com, linux-kernel@vger.kernel.org, hpa@zytor.com, tony.luck@intel.com, reinette.chatre@intel.com, arnd@arndb.de, tglx@linutronix.de, dima@arista.com, babu.moger@amd.com, akpm@linux-foundation.org, sherry.hurwitz@amd.com, rian@alum.mit.edu, dwmw2@infradead.org, pbonzini@redhat.com, suravee.suthikulpanit@amd.com, peterz@infradead.org, jpoimboe@redhat.com In-Reply-To: <20181121202811.4492-6-babu.moger@amd.com> References: <20181121202811.4492-6-babu.moger@amd.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/cache] x86/resctrl: Initialize the vendor-specific resource functions Git-Commit-ID: 1ad4fa41d99f606098fd7b90c1f5deb2b3dfae5d X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, T_DATE_IN_FUTURE_96_Q autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on terminus.zytor.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 1ad4fa41d99f606098fd7b90c1f5deb2b3dfae5d Gitweb: https://git.kernel.org/tip/1ad4fa41d99f606098fd7b90c1f5deb2b3dfae5d Author: Babu Moger AuthorDate: Wed, 21 Nov 2018 20:28:33 +0000 Committer: Borislav Petkov CommitDate: Thu, 22 Nov 2018 20:16:19 +0100 x86/resctrl: Initialize the vendor-specific resource functions Initialize the resource functions that are different between the vendors. Some features are initialized differently between the vendors. Add _intel suffix to Intel-specific functions. For example, the MBA feature varies significantly between Intel and AMD. Separate the initialization of these resource functions. That way we can easily add AMD's functions later. Signed-off-by: Babu Moger Signed-off-by: Borislav Petkov Cc: Andrew Morton Cc: Andy Lutomirski Cc: Arnd Bergmann Cc: Brijesh Singh Cc: "Chang S. Bae" Cc: David Miller Cc: David Woodhouse Cc: Dmitry Safonov Cc: Fenghua Yu Cc: Greg Kroah-Hartman Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Jann Horn Cc: Joerg Roedel Cc: Jonathan Corbet Cc: Josh Poimboeuf Cc: Kate Stewart Cc: "Kirill A. Shutemov" Cc: Cc: Mauro Carvalho Chehab Cc: Paolo Bonzini Cc: Peter Zijlstra Cc: Philippe Ombredanne Cc: Pu Wen Cc: Cc: "Rafael J. Wysocki" Cc: Reinette Chatre Cc: Rian Hunter Cc: Sherry Hurwitz Cc: Suravee Suthikulpanit Cc: Thomas Gleixner Cc: Thomas Lendacky Cc: Tony Luck Cc: Vitaly Kuznetsov Cc: Link: https://lkml.kernel.org/r/20181121202811.4492-6-babu.moger@amd.com --- arch/x86/kernel/cpu/resctrl/core.c | 34 ++++++++++++++++++++++++++----- arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 4 ++-- arch/x86/kernel/cpu/resctrl/internal.h | 8 ++++++-- 3 files changed, 37 insertions(+), 9 deletions(-) diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c index cf6491eeadc6..3bd245b057c4 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -57,7 +57,8 @@ int max_name_width, max_data_width; bool rdt_alloc_capable; static void -mba_wrmsr(struct rdt_domain *d, struct msr_param *m, struct rdt_resource *r); +mba_wrmsr_intel(struct rdt_domain *d, struct msr_param *m, + struct rdt_resource *r); static void cat_wrmsr(struct rdt_domain *d, struct msr_param *m, struct rdt_resource *r); @@ -171,10 +172,7 @@ struct rdt_resource rdt_resources_all[] = { .rid = RDT_RESOURCE_MBA, .name = "MB", .domains = domain_init(RDT_RESOURCE_MBA), - .msr_base = MSR_IA32_MBA_THRTL_BASE, - .msr_update = mba_wrmsr, .cache_level = 3, - .parse_ctrlval = parse_bw, .format_str = "%d=%*u", .fflags = RFTYPE_RES_MB, }, @@ -357,7 +355,8 @@ u32 delay_bw_map(unsigned long bw, struct rdt_resource *r) } static void -mba_wrmsr(struct rdt_domain *d, struct msr_param *m, struct rdt_resource *r) +mba_wrmsr_intel(struct rdt_domain *d, struct msr_param *m, + struct rdt_resource *r) { unsigned int i; @@ -874,6 +873,25 @@ static __init bool get_rdt_resources(void) return (rdt_mon_capable || rdt_alloc_capable); } +static __init void rdt_init_res_defs_intel(void) +{ + struct rdt_resource *r; + + for_each_rdt_resource(r) { + if (r->rid == RDT_RESOURCE_MBA) { + r->msr_base = MSR_IA32_MBA_THRTL_BASE; + r->msr_update = mba_wrmsr_intel; + r->parse_ctrlval = parse_bw_intel; + } + } +} + +static __init void rdt_init_res_defs(void) +{ + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) + rdt_init_res_defs_intel(); +} + static enum cpuhp_state rdt_online; static int __init resctrl_late_init(void) @@ -881,6 +899,12 @@ static int __init resctrl_late_init(void) struct rdt_resource *r; int state, ret; + /* + * Initialize functions(or definitions) that are different + * between vendors here. + */ + rdt_init_res_defs(); + check_quirks(); if (!get_rdt_resources()) diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c index 407d2179bfcb..a8ae87e756e9 100644 --- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c +++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c @@ -64,8 +64,8 @@ static bool bw_validate(char *buf, unsigned long *data, struct rdt_resource *r) return true; } -int parse_bw(struct rdt_parse_data *data, struct rdt_resource *r, - struct rdt_domain *d) +int parse_bw_intel(struct rdt_parse_data *data, struct rdt_resource *r, + struct rdt_domain *d) { unsigned long bw_val; diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h index fb26d347ae6c..9a643f444723 100644 --- a/arch/x86/kernel/cpu/resctrl/internal.h +++ b/arch/x86/kernel/cpu/resctrl/internal.h @@ -444,8 +444,8 @@ struct rdt_resource { int parse_cbm(struct rdt_parse_data *data, struct rdt_resource *r, struct rdt_domain *d); -int parse_bw(struct rdt_parse_data *data, struct rdt_resource *r, - struct rdt_domain *d); +int parse_bw_intel(struct rdt_parse_data *data, struct rdt_resource *r, + struct rdt_domain *d); extern struct mutex rdtgroup_mutex; @@ -468,6 +468,10 @@ enum { RDT_NUM_RESOURCES, }; +#define for_each_rdt_resource(r) \ + for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ + r++) + #define for_each_capable_rdt_resource(r) \ for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ r++) \