From patchwork Thu Jan 21 05:32:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 368124 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_PATCH, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS, 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 7E825C433DB for ; Thu, 21 Jan 2021 05:35:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2F63B2389B for ; Thu, 21 Jan 2021 05:35:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726731AbhAUFfO (ORCPT ); Thu, 21 Jan 2021 00:35:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49834 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727054AbhAUFdx (ORCPT ); Thu, 21 Jan 2021 00:33:53 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18817C0613D3 for ; Wed, 20 Jan 2021 21:33:12 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id my11so4275723pjb.1 for ; Wed, 20 Jan 2021 21:33:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PHlzH0Ourl1mu7oe7NxeEbG4XHfC6NVL5g1u9VF/oMA=; b=uZuc/rNvyqGSYV8PEbuyrvYpt1fd4IwmupPpl6az7+KBxHPx0bRKkBNejfZPA7TwQm pZu3lQ/SpNpE+oJcJl+nvNjW7aj+WY7j6iiBmjNYYB7c8k/ykrHwyR7JQrn2KiXoelxb GUdkydoQLBDkfNO5gFyC0UDOlTJbupc0ReshgbxrtW4WrkcnWCXozcdBW2t2Ilz8Px8E EO024M0CPeBx7hebVYzJiZ+njciNpZsfIrdsm7FCDpFls2QbQb0/KYCjm9A+IztIgbml XtkdQaxoqIpvEx7dlzILt+QHbvcLILb14yKzKNWMo3EcrPwPKK8ltUgT0WjSxneX8SU6 EohA== 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:mime-version :content-transfer-encoding; bh=PHlzH0Ourl1mu7oe7NxeEbG4XHfC6NVL5g1u9VF/oMA=; b=MfAKVHvZfr9vDOdF8cww8grJBTATUnjyHJK9EY84miRMt7NLiYCoOOqRCiDqk7N1qy nciMc+OIWudQLHQenwGjvle5UvXLCuw8rD6dYcUikbsbDmV9LmUh6UtAhnw6qKVB9UJh rXLgOX64Ss+d2shGmzVF8AupoMolzNoZ76jsIhLYn6FqPJ79xnmftBNKXbQK47ToY+B1 lz1iBU6a2+aPFpiAUT1c6piWOv9NwFcqFRvdyNZilncIW8YRB//2SknQ9XiZ9PxMFuFl Jqd0bnoaTUzRDdTx68uMQlUXQh8FLwQkmPCN+UOkuBB5cbvvGlyTv/JNJb+Putcbc2TS W6CQ== X-Gm-Message-State: AOAM531VfsoQ9YPw+46IZpzHHH1K09L1+ky3nJKLA6U2YWumgWy0uvYs 4+4qjiIAkL574h6IUz/JWG6S X-Google-Smtp-Source: ABdhPJyEXBsa5cIQ6433QxYClwHOsGn90ME+c0KidCIQJJlsNxIEjP1pX7vMvv7mmE9guQzppIqlPg== X-Received: by 2002:a17:90a:5501:: with SMTP id b1mr9450580pji.7.1611207191416; Wed, 20 Jan 2021 21:33:11 -0800 (PST) Received: from localhost.localdomain ([2409:4072:6182:23c4:4d5:e6d9:fc7e:c8e2]) by smtp.gmail.com with ESMTPSA id o14sm4332850pgr.44.2021.01.20.21.33.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jan 2021 21:33:10 -0800 (PST) From: Manivannan Sadhasivam To: georgi.djakov@linaro.org, robh+dt@kernel.org Cc: agross@kernel.org, bjorn.andersson@linaro.org, linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, okukatla@codeaurora.org, Manivannan Sadhasivam Subject: [PATCH v2 0/2] Add interconnect driver for SDX55 Date: Thu, 21 Jan 2021 11:02:52 +0530 Message-Id: <20210121053254.8355-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hello Georgi, This small series adds interconnect driver support for SDX55 platform for scaling the bandwidth requirements over RPMh. The driver has been tested on SDX55-MTP and gives below DDR metrics using mbw [1] tool: Src port: SDX55_MASTER_AMPSS_M0 Dest port: SDX55_SLAVE_EBI_CH0 Command: mbw 100 With bandwidth 500000: AVG Method: MEMCPY Elapsed: 0.59058 MiB: 100.00000 Copy: 169.324 MiB/s With bandwidth 700000: AVG Method: MEMCPY Elapsed: 0.29267 MiB: 100.00000 Copy: 341.678 MiB/s With bandwidth 900000: AVG Method: MEMCPY Elapsed: 0.19608 MiB: 100.00000 Copy: 510.005 MiB/s The copy speed seems to be the same for all bandwidth less than 500000 and greater than 900000. Note: The CPUFreq governer needs to be set to something other than schedutil to see the difference. Otherwise the speed seems to be the same for all bandwidth. Thanks, Mani [1] https://github.com/raas/mbw Changes in v2: * Changed the copyright year to 2021, fixed Kconfig dependency and constified provider struct definitions. Manivannan Sadhasivam (2): dt-bindings: interconnect: Add Qualcomm SDX55 DT bindings interconnect: qcom: Add SDX55 interconnect provider driver .../bindings/interconnect/qcom,rpmh.yaml | 4 + drivers/interconnect/qcom/Kconfig | 9 + drivers/interconnect/qcom/Makefile | 2 + drivers/interconnect/qcom/sdx55.c | 356 ++++++++++++++++++ drivers/interconnect/qcom/sdx55.h | 70 ++++ include/dt-bindings/interconnect/qcom,sdx55.h | 76 ++++ 6 files changed, 517 insertions(+) create mode 100644 drivers/interconnect/qcom/sdx55.c create mode 100644 drivers/interconnect/qcom/sdx55.h create mode 100644 include/dt-bindings/interconnect/qcom,sdx55.h