From patchwork Thu Mar 16 15:38:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Rui X-Patchwork-Id: 13177930 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 15BCAC6FD1F for ; Thu, 16 Mar 2023 15:44:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229909AbjCPPn7 (ORCPT ); Thu, 16 Mar 2023 11:43:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33372 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231286AbjCPPnd (ORCPT ); Thu, 16 Mar 2023 11:43:33 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A01E7E1938; Thu, 16 Mar 2023 08:42:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678981365; x=1710517365; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4GQ0qOCl+Atfv/CQFdipf14nnCdeBWAoGMrWMztiuR8=; b=agzQwFECNsNqIX1Sh43Ny+36uORB4dJMYf7x5ZArK+oSzy+v3eXx1fxC LjdUuDQrUl1lgmU1eVh/csNn9XptnU17izihAA1FwmZ1YTGppnZ8Jo9oh vJIh+d6XhGGhJ9xYtEA/fIbqtqTujuI2ud/EccLzYJ1vVtBLpRPB1qcWa 6zJCIdbTrMWhZTe7Wqk+qNRDC2+6d2q8Bx+1FculqiV2mRbiOWPNsU1Wp 5G1sv3yPYlg7lgzWcuN6H1ShGKAmSkV+tczQWUl9HDZD1++AtQpzBccii OydvhTzYktN4lEVhmia0eWVQEZ26xNui3DI3oUXMj5dgK/3An5h7vD2KI w==; X-IronPort-AV: E=McAfee;i="6600,9927,10651"; a="339571091" X-IronPort-AV: E=Sophos;i="5.98,265,1673942400"; d="scan'208";a="339571091" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2023 08:39:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10651"; a="1009267198" X-IronPort-AV: E=Sophos;i="5.98,265,1673942400"; d="scan'208";a="1009267198" Received: from feiwang3-mobl2.ccr.corp.intel.com (HELO rzhang1-DESK.intel.com) ([10.249.170.93]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2023 08:39:12 -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 13/15] powercap/intel_rapl: Introduce RAPL I/F type Date: Thu, 16 Mar 2023 23:38:39 +0800 Message-Id: <20230316153841.3666-14-rui.zhang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230316153841.3666-1-rui.zhang@intel.com> References: <20230316153841.3666-1-rui.zhang@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Different RAPL Interfaces may have different primitive information and rapl_defaults calls. To better distinguish this difference in the RAPL framework code, introduce a new enum to represent different types of RAPL Interfaces. No functional change. Signed-off-by: Zhang Rui --- drivers/powercap/intel_rapl_common.c | 18 +++++++++++++----- drivers/powercap/intel_rapl_msr.c | 2 ++ .../int340x_thermal/processor_thermal_rapl.c | 1 + include/linux/intel_rapl.h | 6 ++++++ 4 files changed, 22 insertions(+), 5 deletions(-) diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c index a6a7d048d0b4..7e79066bcbcb 100644 --- a/drivers/powercap/intel_rapl_common.c +++ b/drivers/powercap/intel_rapl_common.c @@ -177,7 +177,7 @@ struct rapl_defaults { unsigned int psys_domain_energy_unit; bool spr_psys_bits; }; -static struct rapl_defaults *rapl_defaults; +static struct rapl_defaults *rpd_msr; static struct rapl_defaults *get_rpd(struct rapl_package *rp) { @@ -601,7 +601,7 @@ static u64 rapl_unit_xlate(struct rapl_domain *rd, enum unit_type type, return div64_u64(value, scale); } -static struct rapl_primitive_info rpis_default[NR_RAPL_PRIMITIVES] = { +static struct rapl_primitive_info rpi_msr[NR_RAPL_PRIMITIVES] = { /* name, mask, shift, msr index, unit divisor */ [POWER_LIMIT1] = PRIMITIVE_INFO_INIT(POWER_LIMIT1, POWER_LIMIT1_MASK, 0, RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0), @@ -670,8 +670,16 @@ static struct rapl_primitive_info *get_rpi(struct rapl_package *rp, int prim) static int rapl_config(struct rapl_package *rp) { - rp->priv->rpd = (void *)rapl_defaults; - rp->priv->rpi = (void *)rpis_default; + switch (rp->priv->type) { + /* MMIO I/F shares the same register layout as MSR registers */ + case RAPL_IF_MMIO: + case RAPL_IF_MSR: + rp->priv->rpd = (void *)rpd_msr; + rp->priv->rpi = (void *)rpi_msr; + break; + default: + return -EINVAL; + } return 0; } @@ -1536,7 +1544,7 @@ static int __init rapl_init(void) id = x86_match_cpu(rapl_ids); if (id) { - rapl_defaults = (struct rapl_defaults *)id->driver_data; + rpd_msr = (struct rapl_defaults *)id->driver_data; rapl_msr_platdev = platform_device_alloc("intel_rapl_msr", 0); if (!rapl_msr_platdev) diff --git a/drivers/powercap/intel_rapl_msr.c b/drivers/powercap/intel_rapl_msr.c index 3e48e729050d..73c8bbcfc1bd 100644 --- a/drivers/powercap/intel_rapl_msr.c +++ b/drivers/powercap/intel_rapl_msr.c @@ -34,6 +34,7 @@ static struct rapl_if_priv *rapl_msr_priv; static struct rapl_if_priv rapl_msr_priv_intel = { + .type = RAPL_IF_MSR, .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 }, @@ -50,6 +51,7 @@ static struct rapl_if_priv rapl_msr_priv_intel = { }; static struct rapl_if_priv rapl_msr_priv_amd = { + .type = RAPL_IF_MSR, .reg_unit = MSR_AMD_RAPL_POWER_UNIT, .regs[RAPL_DOMAIN_PACKAGE] = { 0, MSR_AMD_PKG_ENERGY_STATUS, 0, 0, 0 }, diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_rapl.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_rapl.c index 140fb85cfa7b..013f1633f082 100644 --- a/drivers/thermal/intel/int340x_thermal/processor_thermal_rapl.c +++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_rapl.c @@ -97,6 +97,7 @@ int proc_thermal_rapl_add(struct pci_dev *pdev, struct proc_thermal_device *proc rapl_regs->regs[domain][reg]; rapl_mmio_priv.limits[domain] = rapl_regs->limits[domain]; } + rapl_mmio_priv.type = RAPL_IF_MMIO; rapl_mmio_priv.reg_unit = (u64)proc_priv->mmio_base + rapl_regs->reg_unit; rapl_mmio_priv.read_raw = rapl_mmio_read_raw; diff --git a/include/linux/intel_rapl.h b/include/linux/intel_rapl.h index d92ded956140..e5a7b47ceac9 100644 --- a/include/linux/intel_rapl.h +++ b/include/linux/intel_rapl.h @@ -14,6 +14,11 @@ #include #include +enum rapl_if_type { + RAPL_IF_MSR, /* RAPL I/F using MSR registers */ + RAPL_IF_MMIO, /* RAPL I/F using MMIO registers */ +}; + enum rapl_domain_type { RAPL_DOMAIN_PACKAGE, /* entire package/socket */ RAPL_DOMAIN_PP0, /* core power plane */ @@ -130,6 +135,7 @@ struct reg_action { * @rpi: internal pointer to interface primitive info */ struct rapl_if_priv { + enum rapl_if_type type; struct powercap_control_type *control_type; enum cpuhp_state pcap_rapl_online; u64 reg_unit;