From nobody Wed Dec 17 00:14:51 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 08796195FDB; Mon, 17 Jun 2024 06:07:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718604448; cv=none; b=mOSuOEzo2Ig2SwCZk/a8GeKZGzKxYdolb2hZgBFNPpdqe8sNERpJUPuohTs+rCKeNJ8FlSicTKcTmP1Cgu+FtTLkQE2pHvBXaDqTAKXCREK3jQD5x5JsVTwzkEhHXbwQwBqVEQUxPyScHxDZ7G+RsKBuVut2KOgGqeXFmNJTN04= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718604448; c=relaxed/simple; bh=pm4CS3uITJz8oWMTDsc9hsVdZ0jFek9ebREwEYUCGkU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KLDgPKQ+LxKb5u3+ECP66SwnBJqgesKj1co1QjuEQBIn2Hte/IMBYgBMIHmmTN4K1YE9wEo1FBNI1a/K3vH5nwwzdcboeU1ZB/LtH7BDvJ5SL2+dw7z1w/jatp0+1lXvvgjEcTTILcaucRTp9UrxeUVzTUJNG+uMNb+Oh2n7qP4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=LO8133hK; arc=none smtp.client-ip=192.198.163.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="LO8133hK" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1718604447; x=1750140447; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=pm4CS3uITJz8oWMTDsc9hsVdZ0jFek9ebREwEYUCGkU=; b=LO8133hKvfQTBuefi4JpdudD812bYKTseilBvcs8u6zQToBk3R4Ukl3f JvQZDubLoZUmutWRjpwbjAse5H+ywz68WV0XzqXYjFH43MsQmc0/R3r19 XAcbXg7dZgB0VKjxSV72oLX7wH8A4oYrW//Tf+OEO/dHvVyAoMnT4868X r1n9Hz1GjhVPABLAz62gRp0CCcQRGZ4mZj75QVeZ8+GBUtKhJDjtfnOYq WpZgEsNXNXTJjg1KIuR6cRwqjeICAeMSr8QtwFmzSQgxq557CzAWlOJ5l H7rBKBi9g4LAjZGRakN8unOxH/Dxg0VpRxlJ2DYOzTtu4jlcIwaSfjM4d Q==; X-CSE-ConnectionGUID: TiozYziLSGOc7Z7suG4m6g== X-CSE-MsgGUID: 9uRkGVRmRsuoy5l5AV2DMQ== X-IronPort-AV: E=McAfee;i="6700,10204,11105"; a="15138472" X-IronPort-AV: E=Sophos;i="6.08,244,1712646000"; d="scan'208";a="15138472" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2024 23:07:27 -0700 X-CSE-ConnectionGUID: mBKfOPVtRwGkWQU6iIs2Eg== X-CSE-MsgGUID: x2YlxM5MRVayPMoY/JrA+A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,244,1712646000"; d="scan'208";a="41028205" Received: from ncintean-mobl1.ger.corp.intel.com (HELO tkristo-desk.intel.com) ([10.245.246.69]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2024 23:07:24 -0700 From: Tero Kristo To: hdegoede@redhat.com, srinivas.pandruvada@linux.intel.com, ilpo.jarvinen@linux.intel.com Cc: linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH 5/7] platform/x86/intel-uncore-freq: Get rid of uncore_read_freq driver API Date: Mon, 17 Jun 2024 09:04:38 +0300 Message-ID: <20240617060708.892981-6-tero.kristo@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240617060708.892981-1-tero.kristo@linux.intel.com> References: <20240617060708.892981-1-tero.kristo@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Get rid of uncore_read_freq driver API. Instead, add a new entry to the enumerated read interface and use this. No functional change intended. Signed-off-by: Tero Kristo --- .../uncore-frequency-common.c | 19 ++++++-------- .../uncore-frequency-common.h | 10 ++++---- .../uncore-frequency/uncore-frequency-tpmi.c | 25 ++++++++++++++++--- .../intel/uncore-frequency/uncore-frequency.c | 20 +++++++++++++-- 4 files changed, 52 insertions(+), 22 deletions(-) diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-c= ommon.c b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-comm= on.c index 8d9817d70e27..cfbff057458d 100644 --- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c +++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c @@ -21,7 +21,6 @@ static DEFINE_IDA(intel_uncore_ida); /* callbacks for actual HW read/write */ static int (*uncore_read)(struct uncore_data *data, unsigned int *value, e= num uncore_index index); static int (*uncore_write)(struct uncore_data *data, unsigned int input, e= num uncore_index index); -static int (*uncore_read_freq)(struct uncore_data *data, unsigned int *fre= q); =20 static ssize_t show_domain_id(struct kobject *kobj, struct kobj_attribute = *attr, char *buf) { @@ -85,7 +84,7 @@ static ssize_t show_perf_status_freq_khz(struct uncore_da= ta *data, char *buf) int ret; =20 mutex_lock(&uncore_lock); - ret =3D uncore_read_freq(data, &freq); + ret =3D uncore_read(data, &freq, UNCORE_INDEX_CURRENT_FREQ); mutex_unlock(&uncore_lock); if (ret) return ret; @@ -195,7 +194,7 @@ static int create_attr_group(struct uncore_data *data, = char *name) data->uncore_attrs[index++] =3D &data->initial_min_freq_khz_kobj_attr.att= r; data->uncore_attrs[index++] =3D &data->initial_max_freq_khz_kobj_attr.att= r; =20 - ret =3D uncore_read_freq(data, &freq); + ret =3D uncore_read(data, &freq, UNCORE_INDEX_CURRENT_FREQ); if (!ret) data->uncore_attrs[index++] =3D &data->current_freq_khz_kobj_attr.attr; =20 @@ -267,17 +266,15 @@ void uncore_freq_remove_die_entry(struct uncore_data = *data) } EXPORT_SYMBOL_NS_GPL(uncore_freq_remove_die_entry, INTEL_UNCORE_FREQUENCY); =20 -int uncore_freq_common_init(int (*read_control_freq)(struct uncore_data *d= ata, unsigned int *value, - enum uncore_index index), - int (*write_control_freq)(struct uncore_data *data, unsigned int in= put, - enum uncore_index index), - int (*read_freq)(struct uncore_data *data, unsigned int *freq)) +int uncore_freq_common_init(int (*read)(struct uncore_data *data, unsigned= int *value, + enum uncore_index index), + int (*write)(struct uncore_data *data, unsigned int input, + enum uncore_index index)) { mutex_lock(&uncore_lock); =20 - uncore_read =3D read_control_freq; - uncore_write =3D write_control_freq; - uncore_read_freq =3D read_freq; + uncore_read =3D read; + uncore_write =3D write; =20 if (!uncore_root_kobj) { struct device *dev_root =3D bus_get_dev_root(&cpu_subsys); diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-c= ommon.h b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-comm= on.h index 2d98931cd8e2..4c245b945e4e 100644 --- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.h +++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.h @@ -69,13 +69,13 @@ struct uncore_data { enum uncore_index { UNCORE_INDEX_MIN_FREQ, UNCORE_INDEX_MAX_FREQ, + UNCORE_INDEX_CURRENT_FREQ, }; =20 -int uncore_freq_common_init(int (*read_control_freq)(struct uncore_data *d= ata, unsigned int *value, - enum uncore_index index), - int (*write_control_freq)(struct uncore_data *data, unsigned int in= put, - enum uncore_index index), - int (*uncore_read_freq)(struct uncore_data *data, unsigned int *fre= q)); +int uncore_freq_common_init(int (*read)(struct uncore_data *data, unsigned= int *value, + enum uncore_index index), + int (*write)(struct uncore_data *data, unsigned int input, + enum uncore_index index)); void uncore_freq_common_exit(void); int uncore_freq_add_entry(struct uncore_data *data, int cpu); void uncore_freq_remove_die_entry(struct uncore_data *data); diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-t= pmi.c b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-tpmi.c index e6ec66eb2f03..8d8260781cf0 100644 --- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-tpmi.c +++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-tpmi.c @@ -91,7 +91,7 @@ static void read_control_freq(struct tpmi_uncore_cluster_= info *cluster_info, =20 #define UNCORE_MAX_RATIO FIELD_MAX(UNCORE_MAX_RATIO_MASK) =20 -/* Callback for sysfs read for max/min frequencies. Called under mutex loc= ks */ +/* Helper for sysfs read for max/min frequencies. Called under mutex locks= */ static int uncore_read_control_freq(struct uncore_data *data, unsigned int= *value, enum uncore_index index) { @@ -207,7 +207,7 @@ static int uncore_write_control_freq(struct uncore_data= *data, unsigned int inpu return 0; } =20 -/* Callback for sysfs read for the current uncore frequency. Called under = mutex locks */ +/* Helper for sysfs read for the current uncore frequency. Called under mu= tex locks */ static int uncore_read_freq(struct uncore_data *data, unsigned int *freq) { struct tpmi_uncore_cluster_info *cluster_info; @@ -223,6 +223,24 @@ static int uncore_read_freq(struct uncore_data *data, = unsigned int *freq) return 0; } =20 +/* Callback for sysfs read for TPMI uncore values. Called under mutex lock= s. */ +static int uncore_read(struct uncore_data *data, unsigned int *value, enum= uncore_index index) +{ + switch (index) { + case UNCORE_INDEX_MIN_FREQ: + case UNCORE_INDEX_MAX_FREQ: + return uncore_read_control_freq(data, value, index); + + case UNCORE_INDEX_CURRENT_FREQ: + return uncore_read_freq(data, value); + + default: + break; + } + + return -EOPNOTSUPP; +} + static void remove_cluster_entries(struct tpmi_uncore_struct *tpmi_uncore) { int i; @@ -273,8 +291,7 @@ static int uncore_probe(struct auxiliary_device *auxdev= , const struct auxiliary_ return -EINVAL; =20 /* Register callbacks to uncore core */ - ret =3D uncore_freq_common_init(uncore_read_control_freq, uncore_write_co= ntrol_freq, - uncore_read_freq); + ret =3D uncore_freq_common_init(uncore_read, uncore_write_control_freq); if (ret) return ret; =20 diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency.c= b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency.c index 433ddba4608e..f31a8912bb1f 100644 --- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency.c +++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency.c @@ -114,6 +114,23 @@ static int uncore_read_freq(struct uncore_data *data, = unsigned int *freq) return 0; } =20 +static int uncore_read(struct uncore_data *data, unsigned int *value, enum= uncore_index index) +{ + switch (index) { + case UNCORE_INDEX_MIN_FREQ: + case UNCORE_INDEX_MAX_FREQ: + return uncore_read_control_freq(data, value, index); + + case UNCORE_INDEX_CURRENT_FREQ: + return uncore_read_freq(data, value); + + default: + break; + } + + return -EOPNOTSUPP; +} + /* Caller provides protection */ static struct uncore_data *uncore_get_instance(unsigned int cpu) { @@ -256,8 +273,7 @@ static int __init intel_uncore_init(void) if (!uncore_instances) return -ENOMEM; =20 - ret =3D uncore_freq_common_init(uncore_read_control_freq, uncore_write_co= ntrol_freq, - uncore_read_freq); + ret =3D uncore_freq_common_init(uncore_read, uncore_write_control_freq); if (ret) goto err_free; =20 --=20 2.43.0