From patchwork Mon Jul 4 09:30:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leo Yan X-Patchwork-Id: 12904892 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 295B3C433EF for ; Mon, 4 Jul 2022 09:32:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233896AbiGDJcB (ORCPT ); Mon, 4 Jul 2022 05:32:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55454 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233895AbiGDJbp (ORCPT ); Mon, 4 Jul 2022 05:31:45 -0400 Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85C7FDF72 for ; Mon, 4 Jul 2022 02:30:42 -0700 (PDT) Received: by mail-pg1-x535.google.com with SMTP id v126so8416622pgv.11 for ; Mon, 04 Jul 2022 02:30:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=72m7epCKc8DRYc24vKvm2IZvvf4jAtJWITsZpUnezm8=; b=blWIqK+YPLczSwFFpFvxMHpuLKD1i7l9cU7XpIkKtx3GqDxZ1nKppBQcRJiBeJIWoi vUAbMikhw6SgBzcJZGW/Z8uj7FrOlsXLBNuzliHLqZGTc/OBose0BfSsMaFb/eL6Hale j0NdxRTKR9ZK8hGC7enZTehdi8jHAD9ZQrMVhc/YBmisGFHIvQSfzusArZQhM/BBCEPI IaJ3pK7bDpf2v/yk0iR35ugaE/U4HpuAG+KWT7ROHNkVcCRcfLp51tqCL2caDWkpNBkk dS3iF+yJQ3789yYqgAr2bHbLV8YPmczajP3WBXv6BtHqJ1SANsCXFlatzq1WjLKnlFBe t4hQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=72m7epCKc8DRYc24vKvm2IZvvf4jAtJWITsZpUnezm8=; b=ubPxJoIP5oVHz7M0tZZfjSCB84qjmy3Msf1Rx2RgsKO+S2vBvz0jF3AEDDZ4GUCvZf L7bnR4xKJl6vjO/HqmwtevxriS3JfQRTky0E2zZHRSgwsbmSkoLXmYa4RasbMkuNaOZ8 6N/1E6xRv97BRLrNvlN5PEKG2B4krRxBrEx8DLbHygocgVFHjGZZEq7utphcUXDCKuqD i8O5nz6k071NH1byWgiBFi6xg/1eS52Eim4J8D0FeWuomkNdcRSyoVCYsAiKWxW3MzXw putkx0om2rz7l26jOuy9xDQ5ciCSyoRNDynC3xZXnqNRx5KXPMIVN7xVeaOADBCKkQs8 qZ5A== X-Gm-Message-State: AJIora/DIOtDG9RlMkwj+8+IrDlGnhdrMDshLugOts3wEcdaIDX7TCHt 52EXX5/hb07PR0a0rbg04MgzFA== X-Google-Smtp-Source: AGRyM1tD1ms854Jvb6ejo2BaDKtErbzQrX2QO6fPEHFSPxLfHTiJjwP3IyXM10WaCMCRe4iD+LdqxQ== X-Received: by 2002:a62:b514:0:b0:525:1ccd:4506 with SMTP id y20-20020a62b514000000b005251ccd4506mr34508280pfe.8.1656927041886; Mon, 04 Jul 2022 02:30:41 -0700 (PDT) Received: from leo-build-box.lan ([154.3.32.171]) by smtp.gmail.com with ESMTPSA id ms16-20020a17090b235000b001ef81bac701sm2926177pjb.42.2022.07.04.02.30.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Jul 2022 02:30:41 -0700 (PDT) From: Leo Yan To: Andy Gross , Bjorn Andersson , Georgi Djakov , Rob Herring , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue Cc: Leo Yan Subject: [PATCH v3 1/5] dt-bindings: interconnect: Update property for icc-rpm path tag Date: Mon, 4 Jul 2022 17:30:25 +0800 Message-Id: <20220704093029.1126609-2-leo.yan@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220704093029.1126609-1-leo.yan@linaro.org> References: <20220704093029.1126609-1-leo.yan@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org To support path tag in icc-rpm driver, the "#interconnect-cells" property is updated as enumerate values: 1 or 2. Setting to 1 means it is compatible with old DT binding that interconnect path only contains node id; if set to 2 for "#interconnect-cells" property, then the second specifier is used as a tag (e.g. vote for which buckets). Signed-off-by: Leo Yan Acked-by: Krzysztof Kozlowski --- .../devicetree/bindings/interconnect/qcom,rpm.yaml | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml index 8a676fef8c1d..cdfe419e7339 100644 --- a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml @@ -45,7 +45,12 @@ properties: - qcom,sdm660-snoc '#interconnect-cells': - const: 1 + description: | + Number of interconnect specifier. Value: <1> is one cell in a + interconnect specifier for the interconnect node id, <2> requires + the interconnect node id and an extra path tag. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 1, 2 ] clocks: minItems: 2 From patchwork Mon Jul 4 09:30:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leo Yan X-Patchwork-Id: 12904893 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 135A6CCA47F for ; Mon, 4 Jul 2022 09:32:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233921AbiGDJcR (ORCPT ); Mon, 4 Jul 2022 05:32:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54230 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233818AbiGDJbx (ORCPT ); Mon, 4 Jul 2022 05:31:53 -0400 Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC1D7DF97 for ; Mon, 4 Jul 2022 02:30:45 -0700 (PDT) Received: by mail-pj1-x102d.google.com with SMTP id o3-20020a17090a744300b001ef8f7f3dddso514284pjk.3 for ; Mon, 04 Jul 2022 02:30:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6WnlHr6IrouPH/wdi+y79keal1VSMpfo6gBqx2QqUOA=; b=Ifkvm7ECn8RZvQg8nAldNfFTarAyPRTePgZKiAGgjxU3ReqY6ok96bTDPAe0CwYIMt JvZafMLlhbWHqdw7tVHhV8MvsKRraA+NpP/NTJ0U0lteAT4j+ANPtKA6nwkQ3iKP6bs9 I+00IMKWGw9F5416FVk5OrFWKcn2I7EYNYSd74Qfw7Qhl1lIxktOajTK3yp2ghYn6Qo3 Vv6hIRWjTNo02XrS2afkS1kcKqqORAljlG0JlcLSfOJHAsWwYWu977LLnaeu0Gw+DLwr CRTQut88MUo2qef397e7NLmqUK9p9pX4XWaE+oQbOgdid4is2XNpKfPWacPmk3Kcig4/ 6d3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6WnlHr6IrouPH/wdi+y79keal1VSMpfo6gBqx2QqUOA=; b=nT0NUbT3cosKepRSEXru48Ou5riQEIJlFbpnaACBw31qXfkUDYNFJLbiH48XKFqodz a2gm8Hbk5AND9MiR2pyOfIx1UVBrErXImrKxz7yu6HqpxChrw1eBr2yzq3jkQ1cYcrtt sWi/D/tsgnuYajQ/7zbHQaGJFT3E0zfCHhzrJpVPeMVhx+XuaSZiWvubZmXgeKlEheX0 LpOJw86EQMIOYTjoc50m1IU2qukuESTE2N0Q6sef51s0PampzZsVb0Hv9q0YFFwoqdow hIcionTI9cN5CZTZuUsAN/bu/2mEOaF08HUoSHlXXd4hbqtD3+4PDtzxYL5SYEGlIhJu cXdg== X-Gm-Message-State: AJIora8NenW/UZ57uMWzQJs32vltkRJZGYTYhLmiaei6Z7g0X1/db7/f j6/lxvH+7nzM3dwVZj2QrFE9uw== X-Google-Smtp-Source: AGRyM1tSu750n4sy7LLfIPs0ul9iYMz4ChNbnddSjJNKcigFusnScVnWxTBSGvUbn9GyGLa0JntRyw== X-Received: by 2002:a17:902:f792:b0:168:e97b:3c05 with SMTP id q18-20020a170902f79200b00168e97b3c05mr35305145pln.94.1656927044995; Mon, 04 Jul 2022 02:30:44 -0700 (PDT) Received: from leo-build-box.lan ([154.3.32.171]) by smtp.gmail.com with ESMTPSA id ms16-20020a17090b235000b001ef81bac701sm2926177pjb.42.2022.07.04.02.30.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Jul 2022 02:30:44 -0700 (PDT) From: Leo Yan To: Andy Gross , Bjorn Andersson , Georgi Djakov , Rob Herring , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue Cc: Leo Yan , Dmitry Baryshkov Subject: [PATCH v3 2/5] interconnect: qcom: Move qcom_icc_xlate_extended() to a common file Date: Mon, 4 Jul 2022 17:30:26 +0800 Message-Id: <20220704093029.1126609-3-leo.yan@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220704093029.1126609-1-leo.yan@linaro.org> References: <20220704093029.1126609-1-leo.yan@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org since there have conflict between two headers icc-rpmh.h and icc-rpm.h, the function qcom_icc_xlate_extended() is declared in icc-rpmh.h thus it cannot be used by icc-rpm driver. Move the function to a new common file icc-common.c so that allow it to be called by multiple drivers. Signed-off-by: Leo Yan Reviewed-by: Dmitry Baryshkov --- drivers/interconnect/qcom/Makefile | 3 +++ drivers/interconnect/qcom/icc-common.c | 34 ++++++++++++++++++++++++++ drivers/interconnect/qcom/icc-common.h | 13 ++++++++++ drivers/interconnect/qcom/icc-rpmh.c | 26 +------------------- drivers/interconnect/qcom/icc-rpmh.h | 1 - drivers/interconnect/qcom/sm8450.c | 1 + 6 files changed, 52 insertions(+), 26 deletions(-) create mode 100644 drivers/interconnect/qcom/icc-common.c create mode 100644 drivers/interconnect/qcom/icc-common.h diff --git a/drivers/interconnect/qcom/Makefile b/drivers/interconnect/qcom/Makefile index 120e279a7427..8e357528185d 100644 --- a/drivers/interconnect/qcom/Makefile +++ b/drivers/interconnect/qcom/Makefile @@ -1,5 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_INTERCONNECT_QCOM) += interconnect_qcom.o + +interconnect_qcom-y := icc-common.o icc-bcm-voter-objs := bcm-voter.o qnoc-msm8916-objs := msm8916.o qnoc-msm8939-objs := msm8939.o diff --git a/drivers/interconnect/qcom/icc-common.c b/drivers/interconnect/qcom/icc-common.c new file mode 100644 index 000000000000..0822ce207b5d --- /dev/null +++ b/drivers/interconnect/qcom/icc-common.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2022 Linaro Ltd. + */ + +#include +#include + +#include "icc-common.h" + +struct icc_node_data *qcom_icc_xlate_extended(struct of_phandle_args *spec, void *data) +{ + struct icc_node_data *ndata; + struct icc_node *node; + + node = of_icc_xlate_onecell(spec, data); + if (IS_ERR(node)) + return ERR_CAST(node); + + ndata = kzalloc(sizeof(*ndata), GFP_KERNEL); + if (!ndata) + return ERR_PTR(-ENOMEM); + + ndata->node = node; + + if (spec->args_count == 2) + ndata->tag = spec->args[1]; + + if (spec->args_count > 2) + pr_warn("%pOF: Too many arguments, path tag is not parsed\n", spec->np); + + return ndata; +} +EXPORT_SYMBOL_GPL(qcom_icc_xlate_extended); diff --git a/drivers/interconnect/qcom/icc-common.h b/drivers/interconnect/qcom/icc-common.h new file mode 100644 index 000000000000..33bb2c38dff3 --- /dev/null +++ b/drivers/interconnect/qcom/icc-common.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2022 Linaro Ltd. + */ + +#ifndef __DRIVERS_INTERCONNECT_QCOM_ICC_COMMON_H__ +#define __DRIVERS_INTERCONNECT_QCOM_ICC_COMMON_H__ + +#include + +struct icc_node_data *qcom_icc_xlate_extended(struct of_phandle_args *spec, void *data); + +#endif diff --git a/drivers/interconnect/qcom/icc-rpmh.c b/drivers/interconnect/qcom/icc-rpmh.c index 8acc8e67a332..114bb8f64573 100644 --- a/drivers/interconnect/qcom/icc-rpmh.c +++ b/drivers/interconnect/qcom/icc-rpmh.c @@ -11,6 +11,7 @@ #include #include "bcm-voter.h" +#include "icc-common.h" #include "icc-rpmh.h" /** @@ -100,31 +101,6 @@ int qcom_icc_set(struct icc_node *src, struct icc_node *dst) } EXPORT_SYMBOL_GPL(qcom_icc_set); -struct icc_node_data *qcom_icc_xlate_extended(struct of_phandle_args *spec, void *data) -{ - struct icc_node_data *ndata; - struct icc_node *node; - - node = of_icc_xlate_onecell(spec, data); - if (IS_ERR(node)) - return ERR_CAST(node); - - ndata = kzalloc(sizeof(*ndata), GFP_KERNEL); - if (!ndata) - return ERR_PTR(-ENOMEM); - - ndata->node = node; - - if (spec->args_count == 2) - ndata->tag = spec->args[1]; - - if (spec->args_count > 2) - pr_warn("%pOF: Too many arguments, path tag is not parsed\n", spec->np); - - return ndata; -} -EXPORT_SYMBOL_GPL(qcom_icc_xlate_extended); - /** * qcom_icc_bcm_init - populates bcm aux data and connect qnodes * @bcm: bcm to be initialized diff --git a/drivers/interconnect/qcom/icc-rpmh.h b/drivers/interconnect/qcom/icc-rpmh.h index d29929461c17..04391c1ba465 100644 --- a/drivers/interconnect/qcom/icc-rpmh.h +++ b/drivers/interconnect/qcom/icc-rpmh.h @@ -131,7 +131,6 @@ struct qcom_icc_desc { int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, u32 peak_bw, u32 *agg_avg, u32 *agg_peak); int qcom_icc_set(struct icc_node *src, struct icc_node *dst); -struct icc_node_data *qcom_icc_xlate_extended(struct of_phandle_args *spec, void *data); int qcom_icc_bcm_init(struct qcom_icc_bcm *bcm, struct device *dev); void qcom_icc_pre_aggregate(struct icc_node *node); int qcom_icc_rpmh_probe(struct platform_device *pdev); diff --git a/drivers/interconnect/qcom/sm8450.c b/drivers/interconnect/qcom/sm8450.c index 7e3d372b712f..e821fd0b2f66 100644 --- a/drivers/interconnect/qcom/sm8450.c +++ b/drivers/interconnect/qcom/sm8450.c @@ -12,6 +12,7 @@ #include #include "bcm-voter.h" +#include "icc-common.h" #include "icc-rpmh.h" #include "sm8450.h" From patchwork Mon Jul 4 09:30:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leo Yan X-Patchwork-Id: 12904894 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 AFF91C43334 for ; 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Mon, 04 Jul 2022 02:30:47 -0700 (PDT) From: Leo Yan To: Andy Gross , Bjorn Andersson , Georgi Djakov , Rob Herring , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue Cc: Leo Yan , Dmitry Baryshkov Subject: [PATCH v3 3/5] interconnect: qcom: icc-rpm: Change to use qcom_icc_xlate_extended() Date: Mon, 4 Jul 2022 17:30:27 +0800 Message-Id: <20220704093029.1126609-4-leo.yan@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220704093029.1126609-1-leo.yan@linaro.org> References: <20220704093029.1126609-1-leo.yan@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This commit changes to use callback qcom_icc_xlate_extended(). This is a preparation for population path tags from the interconnect DT binding, it doesn't introduce functionality change for the existed DT binding without path tags. Signed-off-by: Leo Yan Reviewed-by: Dmitry Baryshkov --- drivers/interconnect/qcom/icc-rpm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c index 7e8bcbb2f5db..8c9d5cc7276c 100644 --- a/drivers/interconnect/qcom/icc-rpm.c +++ b/drivers/interconnect/qcom/icc-rpm.c @@ -16,6 +16,7 @@ #include #include "smd-rpm.h" +#include "icc-common.h" #include "icc-rpm.h" /* QNOC QoS */ @@ -414,7 +415,7 @@ int qnoc_probe(struct platform_device *pdev) provider->dev = dev; provider->set = qcom_icc_set; provider->aggregate = icc_std_aggregate; - provider->xlate = of_icc_xlate_onecell; + provider->xlate_extended = qcom_icc_xlate_extended; provider->data = data; ret = icc_provider_add(provider); From patchwork Mon Jul 4 09:30:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leo Yan X-Patchwork-Id: 12904895 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 1E14FCCA47F for ; Mon, 4 Jul 2022 09:32:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233407AbiGDJcc (ORCPT ); Mon, 4 Jul 2022 05:32:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54166 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233787AbiGDJb5 (ORCPT ); Mon, 4 Jul 2022 05:31:57 -0400 Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA326DFC4 for ; Mon, 4 Jul 2022 02:30:51 -0700 (PDT) Received: by mail-pf1-x434.google.com with SMTP id f85so4626352pfa.3 for ; Mon, 04 Jul 2022 02:30:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YZw35i4tD7dQYkHhZWLzGB0BrtXzLncPfNzT7OZ+gHQ=; b=zJLfFWR50xifb017AbS4VLlMX9D5KIZO7zGbryzvst11rcydT9/znH6sJj5AqXVOb5 /nIgm3nUcfeWghxNPrldN9qyh7+8xfKW5d+PooJ/QDD2dkBHp55fMHlKVlaOSyiDoicN MtyUT3a2vrIwZYhdD/JpcKYfrLtg0G7P4QmNdaK3tD4JSje1eoGdU8Hj3hi6YPqWgyWi vxglTCiwSuzKdvvX2A5w/5eBhx3u8J8SNNkrd1/IE9WxR9h+UTbDb8Ez3uFcTvMKtqcm 6u8Zk4kk4NMYRr/WlJeQN5eb8BhX1sZNu8japfKHad5YmwogJ+UurSBF2v+fOZQrH1/c T5fQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=YZw35i4tD7dQYkHhZWLzGB0BrtXzLncPfNzT7OZ+gHQ=; b=oi6ZiNdGVpfX44mItGx/uj93pxeDarLM6XtsXzCAQ5sDkiW1rBaZ4U1d/qzmoV/fDL V3n6zy8oMmfDXAKVGtWhYU0KoKxC8XA+K2hP4b2ipaSHLIwNZyQFO9xdWYEe7CP5Nr72 nB1sRhj2CzBrwsXcvzfTHkIbFUTLYhhFgh/Uuh1Pe7+2Qr3nxbDcGIb21kbOYvqM6wit 10DSWHxZuXefzSyLmeWe6qrD/7uhMvWl1Ld34ECmDUrC4mi4pQr5I/lRggK5Quy3t9bz fca00V0DZYetfyAZsHL93b1x6IXlHpIqNeitGi084rYuY2VhSW04B/1okcghrVXQK3KU 2bFQ== X-Gm-Message-State: AJIora+7pBJFbPdC7z3TWZG1EOaG4mw6cV1kXrQMQLMX+9Bt4xnEevfC /GKvPGoU0Zw8BOvyvXUfH6FFoQ== X-Google-Smtp-Source: AGRyM1scHocx0l8bITgGQYxRUu6bQxD8HFtyLboo6Uj6MK+WxTdK+yuP2/xv+Dhbg8EdtoH4ZbTfKA== X-Received: by 2002:a63:481a:0:b0:411:7951:cbcd with SMTP id v26-20020a63481a000000b004117951cbcdmr24429313pga.66.1656927050901; Mon, 04 Jul 2022 02:30:50 -0700 (PDT) Received: from leo-build-box.lan ([154.3.32.171]) by smtp.gmail.com with ESMTPSA id ms16-20020a17090b235000b001ef81bac701sm2926177pjb.42.2022.07.04.02.30.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Jul 2022 02:30:50 -0700 (PDT) From: Leo Yan To: Andy Gross , Bjorn Andersson , Georgi Djakov , Rob Herring , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue Cc: Leo Yan Subject: [PATCH v3 4/5] interconnect: qcom: icc-rpm: Support multiple buckets Date: Mon, 4 Jul 2022 17:30:28 +0800 Message-Id: <20220704093029.1126609-5-leo.yan@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220704093029.1126609-1-leo.yan@linaro.org> References: <20220704093029.1126609-1-leo.yan@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The current interconnect rpm driver uses a single aggregate bandwidth to calculate the clock rates for both active and sleep clocks; therefore, it has no chance to separate bandwidth requests for these two kinds of clocks. This patch studies the implementation from interconnect rpmh driver to support multiple buckets. The rpmh driver provides three buckets for AMC, WAKE, and SLEEP; this driver only needs to use WAKE and SLEEP buckets, but we keep the same way with rpmh driver, this can allow us to reuse the DT binding and avoid to define duplicated data structures. This patch introduces two callbacks: qcom_icc_pre_bw_aggregate() is used to clean up bucket values before aggregate bandwidth requests, and qcom_icc_bw_aggregate() is to aggregate bandwidth for buckets. Signed-off-by: Leo Yan --- drivers/interconnect/qcom/icc-rpm.c | 51 ++++++++++++++++++++++++++++- drivers/interconnect/qcom/icc-rpm.h | 6 ++++ 2 files changed, 56 insertions(+), 1 deletion(-) diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c index 8c9d5cc7276c..b025fc6b97c9 100644 --- a/drivers/interconnect/qcom/icc-rpm.c +++ b/drivers/interconnect/qcom/icc-rpm.c @@ -254,6 +254,54 @@ static int __qcom_icc_set(struct icc_node *n, struct qcom_icc_node *qn, return 0; } +/** + * qcom_icc_rpm_pre_bw_aggregate - cleans up values before re-aggregate requests + * @node: icc node to operate on + */ +static void qcom_icc_pre_bw_aggregate(struct icc_node *node) +{ + struct qcom_icc_node *qn; + size_t i; + + qn = node->data; + for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) { + qn->sum_avg[i] = 0; + qn->max_peak[i] = 0; + } +} + +/** + * qcom_icc_bw_aggregate - aggregate bw for buckets indicated by tag + * @node: node to aggregate + * @tag: tag to indicate which buckets to aggregate + * @avg_bw: new bw to sum aggregate + * @peak_bw: new bw to max aggregate + * @agg_avg: existing aggregate avg bw val + * @agg_peak: existing aggregate peak bw val + */ +static int qcom_icc_bw_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, + u32 peak_bw, u32 *agg_avg, u32 *agg_peak) +{ + size_t i; + struct qcom_icc_node *qn; + + qn = node->data; + + if (!tag) + tag = QCOM_ICC_TAG_ALWAYS; + + for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) { + if (tag & BIT(i)) { + qn->sum_avg[i] += avg_bw; + qn->max_peak[i] = max_t(u32, qn->max_peak[i], peak_bw); + } + } + + *agg_avg += avg_bw; + *agg_peak = max_t(u32, *agg_peak, peak_bw); + return 0; +} + static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) { struct qcom_icc_provider *qp; @@ -414,7 +462,8 @@ int qnoc_probe(struct platform_device *pdev) INIT_LIST_HEAD(&provider->nodes); provider->dev = dev; provider->set = qcom_icc_set; - provider->aggregate = icc_std_aggregate; + provider->pre_aggregate = qcom_icc_pre_bw_aggregate; + provider->aggregate = qcom_icc_bw_aggregate; provider->xlate_extended = qcom_icc_xlate_extended; provider->data = data; diff --git a/drivers/interconnect/qcom/icc-rpm.h b/drivers/interconnect/qcom/icc-rpm.h index ebee9009301e..a49af844ab13 100644 --- a/drivers/interconnect/qcom/icc-rpm.h +++ b/drivers/interconnect/qcom/icc-rpm.h @@ -6,6 +6,8 @@ #ifndef __DRIVERS_INTERCONNECT_QCOM_ICC_RPM_H #define __DRIVERS_INTERCONNECT_QCOM_ICC_RPM_H +#include + #define RPM_BUS_MASTER_REQ 0x73616d62 #define RPM_BUS_SLAVE_REQ 0x766c7362 @@ -65,6 +67,8 @@ struct qcom_icc_qos { * @links: an array of nodes where we can go next while traversing * @num_links: the total number of @links * @buswidth: width of the interconnect between a node and the bus (bytes) + * @sum_avg: current sum aggregate value of all avg bw requests + * @max_peak: current max aggregate value of all peak bw requests * @mas_rpm_id: RPM id for devices that are bus masters * @slv_rpm_id: RPM id for devices that are bus slaves * @qos: NoC QoS setting parameters @@ -75,6 +79,8 @@ struct qcom_icc_node { const u16 *links; u16 num_links; u16 buswidth; + u64 sum_avg[QCOM_ICC_NUM_BUCKETS]; + u64 max_peak[QCOM_ICC_NUM_BUCKETS]; int mas_rpm_id; int slv_rpm_id; struct qcom_icc_qos qos; From patchwork Mon Jul 4 09:30:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leo Yan X-Patchwork-Id: 12904896 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 7332FCCA482 for ; Mon, 4 Jul 2022 09:32:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233757AbiGDJcd (ORCPT ); Mon, 4 Jul 2022 05:32:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233713AbiGDJb7 (ORCPT ); Mon, 4 Jul 2022 05:31:59 -0400 Received: from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com [IPv6:2607:f8b0:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B24CDFD8 for ; 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Mon, 04 Jul 2022 02:30:53 -0700 (PDT) Received: from leo-build-box.lan ([154.3.32.171]) by smtp.gmail.com with ESMTPSA id ms16-20020a17090b235000b001ef81bac701sm2926177pjb.42.2022.07.04.02.30.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Jul 2022 02:30:53 -0700 (PDT) From: Leo Yan To: Andy Gross , Bjorn Andersson , Georgi Djakov , Rob Herring , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue Cc: Leo Yan Subject: [PATCH v3 5/5] interconnect: qcom: icc-rpm: Set bandwidth and clock for bucket values Date: Mon, 4 Jul 2022 17:30:29 +0800 Message-Id: <20220704093029.1126609-6-leo.yan@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220704093029.1126609-1-leo.yan@linaro.org> References: <20220704093029.1126609-1-leo.yan@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This commit uses buckets for support bandwidth and clock rates. It introduces a new function qcom_icc_bus_aggregate() to calculate the aggregate average and peak bandwidths for every bucket, and also it calculates the maximum aggregate values across all buckets. The maximum aggregate values are used to calculate the final bandwidth requests. And we can set the clock rate per bucket, we use SLEEP bucket as default bucket if a platform doesn't enable the interconnect path tags in DT binding; otherwise, we use WAKE bucket to set active clock and use SLEEP bucket for other clocks. So far we don't use AMC bucket. Signed-off-by: Leo Yan --- drivers/interconnect/qcom/icc-rpm.c | 80 ++++++++++++++++++++++++----- 1 file changed, 67 insertions(+), 13 deletions(-) diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c index b025fc6b97c9..4b932eb807c7 100644 --- a/drivers/interconnect/qcom/icc-rpm.c +++ b/drivers/interconnect/qcom/icc-rpm.c @@ -302,18 +302,62 @@ static int qcom_icc_bw_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, return 0; } +/** + * qcom_icc_bus_aggregate - aggregate bandwidth by traversing all nodes + * @provider: generic interconnect provider + * @agg_avg: an array for aggregated average bandwidth of buckets + * @agg_peak: an array for aggregated peak bandwidth of buckets + * @max_agg_avg: pointer to max value of aggregated average bandwidth + * @max_agg_peak: pointer to max value of aggregated peak bandwidth + */ +static void qcom_icc_bus_aggregate(struct icc_provider *provider, + u64 *agg_avg, u64 *agg_peak, + u64 *max_agg_avg, u64 *max_agg_peak) +{ + struct icc_node *node; + struct qcom_icc_node *qn; + int i; + + /* Initialise aggregate values */ + for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) { + agg_avg[i] = 0; + agg_peak[i] = 0; + } + + *max_agg_avg = 0; + *max_agg_peak = 0; + + /* + * Iterate nodes on the interconnect and aggregate bandwidth + * requests for every bucket. + */ + list_for_each_entry(node, &provider->nodes, node_list) { + qn = node->data; + for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) { + agg_avg[i] += qn->sum_avg[i]; + agg_peak[i] = max_t(u64, agg_peak[i], qn->max_peak[i]); + } + } + + /* Find maximum values across all buckets */ + for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) { + *max_agg_avg = max_t(u64, *max_agg_avg, agg_avg[i]); + *max_agg_peak = max_t(u64, *max_agg_peak, agg_peak[i]); + } +} + static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) { struct qcom_icc_provider *qp; struct qcom_icc_node *src_qn = NULL, *dst_qn = NULL; struct icc_provider *provider; - struct icc_node *n; u64 sum_bw; u64 max_peak_bw; u64 rate; - u32 agg_avg = 0; - u32 agg_peak = 0; + u64 agg_avg[QCOM_ICC_NUM_BUCKETS], agg_peak[QCOM_ICC_NUM_BUCKETS]; + u64 max_agg_avg, max_agg_peak; int ret, i; + int bucket; src_qn = src->data; if (dst) @@ -321,12 +365,11 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) provider = src->provider; qp = to_qcom_provider(provider); - list_for_each_entry(n, &provider->nodes, node_list) - provider->aggregate(n, 0, n->avg_bw, n->peak_bw, - &agg_avg, &agg_peak); + qcom_icc_bus_aggregate(provider, agg_avg, agg_peak, &max_agg_avg, + &max_agg_peak); - sum_bw = icc_units_to_bps(agg_avg); - max_peak_bw = icc_units_to_bps(agg_peak); + sum_bw = icc_units_to_bps(max_agg_avg); + max_peak_bw = icc_units_to_bps(max_agg_peak); ret = __qcom_icc_set(src, src_qn, sum_bw); if (ret) @@ -337,12 +380,23 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) return ret; } - rate = max(sum_bw, max_peak_bw); - - do_div(rate, src_qn->buswidth); - rate = min_t(u64, rate, LONG_MAX); - for (i = 0; i < qp->num_clks; i++) { + /* + * Use WAKE bucket for active clock, otherwise, use SLEEP bucket + * for other clocks. If a platform doesn't set interconnect + * path tags, by default use sleep bucket for all clocks. + * + * Note, AMC bucket is not supported yet. + */ + if (!strcmp(qp->bus_clks[i].id, "bus_a")) + bucket = QCOM_ICC_BUCKET_WAKE; + else + bucket = QCOM_ICC_BUCKET_SLEEP; + + rate = icc_units_to_bps(max(agg_avg[bucket], agg_peak[bucket])); + do_div(rate, src_qn->buswidth); + rate = min_t(u64, rate, LONG_MAX); + if (qp->bus_clk_rate[i] == rate) continue;