From patchwork Wed May 5 21:37:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhupesh Sharma X-Patchwork-Id: 431709 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E8097C433B4 for ; Wed, 5 May 2021 21:39:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BB162613F0 for ; Wed, 5 May 2021 21:39:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234484AbhEEVkB (ORCPT ); Wed, 5 May 2021 17:40:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234246AbhEEVjy (ORCPT ); Wed, 5 May 2021 17:39:54 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 027F7C06138C for ; Wed, 5 May 2021 14:38:57 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id md17so1670282pjb.0 for ; Wed, 05 May 2021 14:38:56 -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=EiBQGXYFrfCnZUi3Qrj72wva/FJNobB/Gmt17VjquqY=; b=MWoU747xjoIPLLFuMd9w7vEB7A2x9fDTPO4vH7gdS640PAUoRBjxYrI43DAZXvgfyi NNftfA4WsfW4ch21kfISSrmHuZUsmU7Z9fWVVQWu8Wy0VqRLu11SD5Vgv3tJYLYndAQb k3hvxfX1eZci72giEqdTfhGI2Nsk6EcpKzOAKgBvGi01pb0NlcNIGTyTl5QLrCfoZRuv sYaaT72JeTVA3RBwqdqPYFgWe9wtwCUWNBdKEba5R2badAAId53SkIpdK2Yll4S5TPOr owXBfD1Y/1Sv6QSHYsD7q0ZW4DfmZ7y/JZ/8GRbJpddSKxzFGvHri8EC9gaySeC7vVCA OtzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=EiBQGXYFrfCnZUi3Qrj72wva/FJNobB/Gmt17VjquqY=; b=rjOfn5EHIEaC6Cbj/egTp/y2XS4SNFkXyTPeXgXH7UAzVKzors8qYaTpyoJDtNcpNI CHfy1dM6ZJEVwzxfy2YqtmbpqNC0uk4IOPshvwSPhi6XCR9TX9lDL8in9cDEvvFOObZk ZFEk3A5vUn7NiffQSbDZTOJinl4wqON35vACDDTG70X35lU+D9FQ4ltu9J4WpTMjCyhw PLgZA/kvdxQWRvP+TAOo/zlmePAaHYZdqwODvNVwCKVVOHKCKN24S480cLtxH8lXErBq J/xtyErFHnYYwcO98FEd8a0npEB9IACvJu0HnbCoIK6v7bRyUyzqngH+hNOEi1v4HeMx fKXQ== X-Gm-Message-State: AOAM5304QE2r04+u6E6dSdS3njKyHX+lmdip/LxHI701j1qI0LJIPe88 ReFx46/xy7y1RifAaSxzas/Ush12HYby5A== X-Google-Smtp-Source: ABdhPJxd7I2r5weGX9L8Q7n4b1OwKzK7MlzICqi26e47BNvQrhKnDo3cuWTD/D8JUjI9ugvHgAfnUg== X-Received: by 2002:a17:90a:3e0f:: with SMTP id j15mr736891pjc.70.1620250736310; Wed, 05 May 2021 14:38:56 -0700 (PDT) Received: from localhost.localdomain.name ([223.235.141.68]) by smtp.gmail.com with ESMTPSA id z26sm167031pfq.86.2021.05.05.14.38.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 May 2021 14:38:55 -0700 (PDT) From: Bhupesh Sharma To: linux-arm-msm@vger.kernel.org Cc: bhupesh.sharma@linaro.org, Thara Gopinath , Bjorn Andersson , Rob Herring , Andy Gross , Herbert Xu , "David S . Miller" , Stephen Boyd , Michael Turquette , Vinod Koul , dmaengine@vger.kernel.org, linux-clk@vger.kernel.org, linux-crypto@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, bhupesh.linux@gmail.com Subject: [PATCH v2 09/17] crypto: qce: core: Add support to initialize interconnect path Date: Thu, 6 May 2021 03:07:23 +0530 Message-Id: <20210505213731.538612-10-bhupesh.sharma@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210505213731.538612-1-bhupesh.sharma@linaro.org> References: <20210505213731.538612-1-bhupesh.sharma@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Thara Gopinath Crypto engine on certain Snapdragon processors like sm8150, sm8250, sm8350 etc. requires interconnect path between the engine and memory to be explicitly enabled and bandwidth set prior to any operations. Add support in the qce core to enable the interconnect path appropriately. Cc: Bjorn Andersson Cc: Rob Herring Cc: Andy Gross Cc: Herbert Xu Cc: David S. Miller Cc: Stephen Boyd Cc: Michael Turquette Cc: Vinod Koul Cc: dmaengine@vger.kernel.org Cc: linux-clk@vger.kernel.org Cc: linux-crypto@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: bhupesh.linux@gmail.com Signed-off-by: Bhupesh Sharma [Make header file inclusion alphabetical] Signed-off-by: Thara Gopinath --- drivers/crypto/qce/core.c | 35 ++++++++++++++++++++++++++++------- drivers/crypto/qce/core.h | 1 + 2 files changed, 29 insertions(+), 7 deletions(-) diff --git a/drivers/crypto/qce/core.c b/drivers/crypto/qce/core.c index 80b75085c265..92a0ff1d357e 100644 --- a/drivers/crypto/qce/core.c +++ b/drivers/crypto/qce/core.c @@ -5,6 +5,7 @@ #include #include +#include #include #include #include @@ -21,6 +22,8 @@ #define QCE_MAJOR_VERSION5 0x05 #define QCE_QUEUE_LENGTH 1 +#define QCE_DEFAULT_MEM_BANDWIDTH 393600 + static const struct qce_algo_ops *qce_ops[] = { #ifdef CONFIG_CRYPTO_DEV_QCE_SKCIPHER &skcipher_ops, @@ -202,21 +205,35 @@ static int qce_crypto_probe(struct platform_device *pdev) if (ret < 0) return ret; + qce->mem_path = of_icc_get(qce->dev, "memory"); + if (IS_ERR(qce->mem_path)) + return PTR_ERR(qce->mem_path); + qce->core = devm_clk_get(qce->dev, "core"); - if (IS_ERR(qce->core)) - return PTR_ERR(qce->core); + if (IS_ERR(qce->core)) { + ret = PTR_ERR(qce->core); + goto err_mem_path_put; + } qce->iface = devm_clk_get(qce->dev, "iface"); - if (IS_ERR(qce->iface)) - return PTR_ERR(qce->iface); + if (IS_ERR(qce->iface)) { + ret = PTR_ERR(qce->iface); + goto err_mem_path_put; + } qce->bus = devm_clk_get(qce->dev, "bus"); - if (IS_ERR(qce->bus)) - return PTR_ERR(qce->bus); + if (IS_ERR(qce->bus)) { + ret = PTR_ERR(qce->bus); + goto err_mem_path_put; + } + + ret = icc_set_bw(qce->mem_path, QCE_DEFAULT_MEM_BANDWIDTH, QCE_DEFAULT_MEM_BANDWIDTH); + if (ret) + goto err_mem_path_put; ret = clk_prepare_enable(qce->core); if (ret) - return ret; + goto err_mem_path_disable; ret = clk_prepare_enable(qce->iface); if (ret) @@ -256,6 +273,10 @@ static int qce_crypto_probe(struct platform_device *pdev) clk_disable_unprepare(qce->iface); err_clks_core: clk_disable_unprepare(qce->core); +err_mem_path_disable: + icc_set_bw(qce->mem_path, 0, 0); +err_mem_path_put: + icc_put(qce->mem_path); return ret; } diff --git a/drivers/crypto/qce/core.h b/drivers/crypto/qce/core.h index 085774cdf641..228fcd69ec51 100644 --- a/drivers/crypto/qce/core.h +++ b/drivers/crypto/qce/core.h @@ -35,6 +35,7 @@ struct qce_device { void __iomem *base; struct device *dev; struct clk *core, *iface, *bus; + struct icc_path *mem_path; struct qce_dma_data dma; int burst_size; unsigned int pipe_pair_id;