From patchwork Wed Apr 19 02:44:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhang, Rui" X-Patchwork-Id: 13216308 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECCC9C77B76 for ; Wed, 19 Apr 2023 02:45:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231980AbjDSCpq (ORCPT ); Tue, 18 Apr 2023 22:45:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231888AbjDSCpi (ORCPT ); Tue, 18 Apr 2023 22:45:38 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F10B0B476; Tue, 18 Apr 2023 19:45:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681872307; x=1713408307; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VyXxoAwG4W/8x6sK+/ECee9E2b+9or/2Yzlx9s2JV08=; b=F9v9fQawmB6GvwQJf1Too4ufsxdr1tlqZX877Ord5kj7YWIrzToKq1Yt XVymCfi/4GWE1ZozaIFoJoyvzWgGgg8mfZHjeGUwGCNkjz2VjEdq+0trn AssYeOxRoNstQshie6yimKMszbSkFscAB7gbe8c1oNCGduuAamWr6a4HW qovMbypnXSxsbRyf1VP2OwlE5LO3GrhJkWMZXm/8LHnTF6BGpv8WWRWEv 60cBaUxS1UN/HxT+xrigUBmEYvj9kwTmNwhW49+/LKt8DcbNDvtFYFWN5 x3Iq1EQiJlJCGKh9IWEoUmfCYCfdD/9fm99q9ewrbzIZDPWR8WL7Fszcf A==; X-IronPort-AV: E=McAfee;i="6600,9927,10684"; a="373215319" X-IronPort-AV: E=Sophos;i="5.99,208,1677571200"; d="scan'208";a="373215319" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Apr 2023 19:44:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10684"; a="937478043" X-IronPort-AV: E=Sophos;i="5.99,208,1677571200"; d="scan'208";a="937478043" Received: from hanboyu-mobl.ccr.corp.intel.com (HELO rzhang1-DESK.intel.com) ([10.255.29.76]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Apr 2023 19:44:52 -0700 From: Zhang Rui To: linux-pm@vger.kernel.org, rafael.j.wysocki@intel.com, daniel.lezcano@linaro.org Cc: linux-kernel@vger.kernel.org, srinivas.pandruvada@intel.com Subject: [PATCH v2 11/15] powercap/intel_rapl: Remove redundant cpu parameter Date: Wed, 19 Apr 2023 10:44:15 +0800 Message-Id: <20230419024419.324436-12-rui.zhang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230419024419.324436-1-rui.zhang@intel.com> References: <20230419024419.324436-1-rui.zhang@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org For rapl_packages that rely on online CPUs to work, rp->lead_cpu always has a valid CPU id. Remove the redundant cpu parameter in rapl_check_domain(), rapl_detect_domains() and .check_unit() callbacks. No functional change. Signed-off-by: Zhang Rui Tested-by: Wang Wendy --- drivers/powercap/intel_rapl_common.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c index d88008308d7a..fcb92f1f4bfc 100644 --- a/drivers/powercap/intel_rapl_common.c +++ b/drivers/powercap/intel_rapl_common.c @@ -178,7 +178,7 @@ static int get_pl_prim(struct rapl_domain *rd, int pl, enum pl_prims prim) struct rapl_defaults { u8 floor_freq_reg_addr; - int (*check_unit)(struct rapl_domain *rd, int cpu); + int (*check_unit)(struct rapl_domain *rd); void (*set_floor_freq)(struct rapl_domain *rd, bool mode); u64 (*compute_time_window)(struct rapl_domain *rd, u64 val, bool to_raw); @@ -828,16 +828,16 @@ static int rapl_write_pl_data(struct rapl_domain *rd, int pl, * power unit : microWatts : Represented in milliWatts by default * time unit : microseconds: Represented in seconds by default */ -static int rapl_check_unit_core(struct rapl_domain *rd, int cpu) +static int rapl_check_unit_core(struct rapl_domain *rd) { struct reg_action ra; u32 value; ra.reg = rd->regs[RAPL_DOMAIN_REG_UNIT]; ra.mask = ~0; - if (rd->rp->priv->read_raw(cpu, &ra)) { + if (rd->rp->priv->read_raw(rd->rp->lead_cpu, &ra)) { pr_err("Failed to read power unit REG 0x%llx on CPU %d, exit.\n", - ra.reg, cpu); + ra.reg, rd->rp->lead_cpu); return -ENODEV; } @@ -856,16 +856,16 @@ static int rapl_check_unit_core(struct rapl_domain *rd, int cpu) return 0; } -static int rapl_check_unit_atom(struct rapl_domain *rd, int cpu) +static int rapl_check_unit_atom(struct rapl_domain *rd) { struct reg_action ra; u32 value; ra.reg = rd->regs[RAPL_DOMAIN_REG_UNIT]; ra.mask = ~0; - if (rd->rp->priv->read_raw(cpu, &ra)) { + if (rd->rp->priv->read_raw(rd->rp->lead_cpu, &ra)) { pr_err("Failed to read power unit REG 0x%llx on CPU %d, exit.\n", - ra.reg, cpu); + ra.reg, rd->rp->lead_cpu); return -ENODEV; } @@ -1242,7 +1242,7 @@ static int rapl_package_register_powercap(struct rapl_package *rp) return ret; } -static int rapl_check_domain(int cpu, int domain, struct rapl_package *rp) +static int rapl_check_domain(int domain, struct rapl_package *rp) { struct reg_action ra; @@ -1263,7 +1263,7 @@ static int rapl_check_domain(int cpu, int domain, struct rapl_package *rp) */ ra.mask = ENERGY_STATUS_MASK; - if (rp->priv->read_raw(cpu, &ra) || !ra.value) + if (rp->priv->read_raw(rp->lead_cpu, &ra) || !ra.value) return -ENODEV; return 0; @@ -1292,7 +1292,7 @@ static int rapl_get_domain_unit(struct rapl_domain *rd) return -ENODEV; } - ret = defaults->check_unit(rd, rd->rp->lead_cpu); + ret = defaults->check_unit(rd); if (ret) return ret; @@ -1334,14 +1334,14 @@ static void rapl_detect_powerlimit(struct rapl_domain *rd) /* Detect active and valid domains for the given CPU, caller must * ensure the CPU belongs to the targeted package and CPU hotlug is disabled. */ -static int rapl_detect_domains(struct rapl_package *rp, int cpu) +static int rapl_detect_domains(struct rapl_package *rp) { struct rapl_domain *rd; int i; for (i = 0; i < RAPL_DOMAIN_MAX; i++) { /* use physical package id to read counters */ - if (!rapl_check_domain(cpu, i, rp)) { + if (!rapl_check_domain(i, rp)) { rp->domain_map |= 1 << i; pr_info("Found RAPL domain %s\n", rapl_domain_names[i]); } @@ -1445,7 +1445,7 @@ struct rapl_package *rapl_add_package(int cpu, struct rapl_if_priv *priv) topology_physical_package_id(cpu)); /* check if the package contains valid domains */ - if (rapl_detect_domains(rp, cpu)) { + if (rapl_detect_domains(rp)) { ret = -ENODEV; goto err_free_package; }