From patchwork Tue Oct 27 07:23:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Victor Ding X-Patchwork-Id: 11859535 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EEC6B1130 for ; Tue, 27 Oct 2020 07:24:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D047C21D24 for ; Tue, 27 Oct 2020 07:24:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="oynU9DwR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729550AbgJ0HYu (ORCPT ); Tue, 27 Oct 2020 03:24:50 -0400 Received: from mail-qk1-f202.google.com ([209.85.222.202]:44251 "EHLO mail-qk1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2507575AbgJ0HYt (ORCPT ); Tue, 27 Oct 2020 03:24:49 -0400 Received: by mail-qk1-f202.google.com with SMTP id v186so228341qkb.11 for ; Tue, 27 Oct 2020 00:24:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=v17o19+YnU8WUH8fPM9zqxvAIBUHHC5coCCN3OqBEHM=; b=oynU9DwRJ9SluUXFN93bnlTTy4ymlqK0CqOE1YOo3JTPeszIdnlN6uROW3ufaGCZWp t9Gk06jLjG2UyVr/TdJ3Kui3cu1OJ6pQpf4Q8wr6KFj7YCsTpAoYh9WGaVyZcbQP3v1+ soecEoocP15De+14llSRA/Ilgt/ZVhzXvHigbuSbkgaHcMYoXwo3EZMCZD95mQJMHmer Wt4/6/p9EJWH/JBRCi9L9jJFUxkYOEahKwaaiXqTNQxizwMiApYXFIOopzh8ENW6iVaE tQu6zzA3vQ97fwbNNvaouMtH20xsxs4izoXn0b8MQjzvp/NygQvytF4n9223/pI0oWir jSCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=v17o19+YnU8WUH8fPM9zqxvAIBUHHC5coCCN3OqBEHM=; b=H+VuiFdQwiOOlrQhHnI1upmsayueFibEI4sEOV3oFeUuXcoeH2eQ4GG4+t5AaQzbkT MR7ooyYbEcgNVV2Z1PAJD4Va1r7OuhRl3W0by0CNp8EpwQQMcz3VtbBqhSiNKZUHIq2v r8eoylJ38B2CEzKvIqdGfZlJBRrJ+Gtk8RNYn7LcJWOaqWR47J0T73Xag76dY5tl7QUV Wtggn0uUy7q9qRvbdJWVrDF2mHta7NZBQ8PQ/3zS8i7Q6hGq5qOWgwRGQg7dqVg9L3Nw /1y5VWQ7WjsvjO5urpeumDpOcSTSLwL5zv6utyHrRnc0EDt0pDYvV2fNO1I4VjE/Nu48 waUQ== X-Gm-Message-State: AOAM530DT43cuiisiuwLvGttm8+xT+T4J5S4zyEa+OJxU2iMF/9ROV1w J8eNq34XTB5aDiAfczwRjGqa62TrKEZyAHdi X-Google-Smtp-Source: ABdhPJyF+hUvH4GmtPOfeUj659ZHaxF7w2Z2JhfKgSbpggQryH0vXyTKRJHrl7GCPDq2BzhskMUe3bCjnwhF/BHn Sender: "victording via sendgmr" X-Received: from victording.syd.corp.google.com ([2401:fa00:9:14:f693:9fff:fef4:fa73]) (user=victording job=sendgmr) by 2002:a0c:e054:: with SMTP id y20mr1204435qvk.30.1603783487096; Tue, 27 Oct 2020 00:24:47 -0700 (PDT) Date: Tue, 27 Oct 2020 07:23:55 +0000 In-Reply-To: <20201027072358.13725-1-victording@google.com> Message-Id: <20201027072358.13725-3-victording@google.com> Mime-Version: 1.0 References: <20201027072358.13725-1-victording@google.com> X-Mailer: git-send-email 2.29.0.rc2.309.g374f81d7ae-goog Subject: [PATCH v3 2/4] powercap/intel_rapl_msr: Convert rapl_msr_priv into pointer From: Victor Ding To: linux-kernel@vger.kernel.org Cc: Daniel Lezcano , Kim Phillips , Zhang Rui , linux-pm@vger.kernel.org, Victor Ding , "Rafael J. Wysocki" Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patch changes the static struct rapl_msr_priv to a pointer to allow using a different set of RAPL MSR interface, preparing for supporting AMD's RAPL MSR interface. No functional changes. Signed-off-by: Victor Ding Acked-by: Kim Phillips --- (no changes since v2) Changes in v2: By Kim Phillips : - Added Kim's Acked-by. - Added Daniel Lezcano to Cc. - (No code changes). drivers/powercap/intel_rapl_msr.c | 33 +++++++++++++++++-------------- 1 file changed, 18 insertions(+), 15 deletions(-) diff --git a/drivers/powercap/intel_rapl_msr.c b/drivers/powercap/intel_rapl_msr.c index 1646808d354c..a819b3b89b2f 100644 --- a/drivers/powercap/intel_rapl_msr.c +++ b/drivers/powercap/intel_rapl_msr.c @@ -31,7 +31,9 @@ #define MSR_VR_CURRENT_CONFIG 0x00000601 /* private data for RAPL MSR Interface */ -static struct rapl_if_priv rapl_msr_priv = { +static struct rapl_if_priv *rapl_msr_priv; + +static struct rapl_if_priv rapl_msr_priv_intel = { .reg_unit = MSR_RAPL_POWER_UNIT, .regs[RAPL_DOMAIN_PACKAGE] = { MSR_PKG_POWER_LIMIT, MSR_PKG_ENERGY_STATUS, MSR_PKG_PERF_STATUS, 0, MSR_PKG_POWER_INFO }, @@ -58,9 +60,9 @@ static int rapl_cpu_online(unsigned int cpu) { struct rapl_package *rp; - rp = rapl_find_package_domain(cpu, &rapl_msr_priv); + rp = rapl_find_package_domain(cpu, rapl_msr_priv); if (!rp) { - rp = rapl_add_package(cpu, &rapl_msr_priv); + rp = rapl_add_package(cpu, rapl_msr_priv); if (IS_ERR(rp)) return PTR_ERR(rp); } @@ -73,7 +75,7 @@ static int rapl_cpu_down_prep(unsigned int cpu) struct rapl_package *rp; int lead_cpu; - rp = rapl_find_package_domain(cpu, &rapl_msr_priv); + rp = rapl_find_package_domain(cpu, rapl_msr_priv); if (!rp) return 0; @@ -136,40 +138,41 @@ static int rapl_msr_probe(struct platform_device *pdev) const struct x86_cpu_id *id = x86_match_cpu(pl4_support_ids); int ret; - rapl_msr_priv.read_raw = rapl_msr_read_raw; - rapl_msr_priv.write_raw = rapl_msr_write_raw; + rapl_msr_priv = &rapl_msr_priv_intel; + rapl_msr_priv->read_raw = rapl_msr_read_raw; + rapl_msr_priv->write_raw = rapl_msr_write_raw; if (id) { - rapl_msr_priv.limits[RAPL_DOMAIN_PACKAGE] = 3; - rapl_msr_priv.regs[RAPL_DOMAIN_PACKAGE][RAPL_DOMAIN_REG_PL4] = + rapl_msr_priv->limits[RAPL_DOMAIN_PACKAGE] = 3; + rapl_msr_priv->regs[RAPL_DOMAIN_PACKAGE][RAPL_DOMAIN_REG_PL4] = MSR_VR_CURRENT_CONFIG; pr_info("PL4 support detected.\n"); } - rapl_msr_priv.control_type = powercap_register_control_type(NULL, "intel-rapl", NULL); - if (IS_ERR(rapl_msr_priv.control_type)) { + rapl_msr_priv->control_type = powercap_register_control_type(NULL, "intel-rapl", NULL); + if (IS_ERR(rapl_msr_priv->control_type)) { pr_debug("failed to register powercap control_type.\n"); - return PTR_ERR(rapl_msr_priv.control_type); + return PTR_ERR(rapl_msr_priv->control_type); } ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "powercap/rapl:online", rapl_cpu_online, rapl_cpu_down_prep); if (ret < 0) goto out; - rapl_msr_priv.pcap_rapl_online = ret; + rapl_msr_priv->pcap_rapl_online = ret; return 0; out: if (ret) - powercap_unregister_control_type(rapl_msr_priv.control_type); + powercap_unregister_control_type(rapl_msr_priv->control_type); return ret; } static int rapl_msr_remove(struct platform_device *pdev) { - cpuhp_remove_state(rapl_msr_priv.pcap_rapl_online); - powercap_unregister_control_type(rapl_msr_priv.control_type); + cpuhp_remove_state(rapl_msr_priv->pcap_rapl_online); + powercap_unregister_control_type(rapl_msr_priv->control_type); return 0; }