From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 B7D21C43381 for ; Thu, 11 Feb 2021 23:47:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9488A64E42 for ; Thu, 11 Feb 2021 23:47:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230311AbhBKXr5 (ORCPT ); Thu, 11 Feb 2021 18:47:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230228AbhBKXrJ (ORCPT ); Thu, 11 Feb 2021 18:47:09 -0500 Received: from mail-pf1-x42f.google.com (mail-pf1-x42f.google.com [IPv6:2607:f8b0:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 980B6C061786 for ; Thu, 11 Feb 2021 15:46:29 -0800 (PST) Received: by mail-pf1-x42f.google.com with SMTP id t29so4709574pfg.11 for ; Thu, 11 Feb 2021 15:46:29 -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=EkrytJ9LzBZQeMfRS4wLQprxHkYkItxpKGh4h54tQFM=; b=Oc6IEf1NnavzFlmiOhR4OVBYD33muPM4q1z/iKRkQxt10gl+5ZoYuYo4/r1DKNyJmr MFC0GIIU2/Iu+3D3DukC25EvTRCx8CmpnbdMRW7aEuF9TdVJ3uj2rBtpM4kC/9MpiVcJ iI9iz8yoavYbxR25JET4iDGqfdYM3adlNpGNfckZQerBIq5BTRSvZSZWFbP17KG7WaIS wpLXhupm8CNI5EEgwCqu4fQ5gNIkAFg0znnBU5Nl29aNqia6lr7UhMAWXbHD7xNqldgI PZNGT0D7eXzdcWvMy8bsun/XvdOeU2Ir0wXRc4XHe07F1CakLCO+D6Sy/b9g4i8ynBne Jmig== 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=EkrytJ9LzBZQeMfRS4wLQprxHkYkItxpKGh4h54tQFM=; b=qXIMDEaNqPOdLb4VRtTnn7h+CYHbatz1F35sTB/sG4yKCVKmS5cm2cXp3Em4S7yjqe nDHNlybieJqliziFQyq/LNf0FkZs517IceO63iqv31JT/47ALNoCKGoOpJLQeIRKqU+B NwIR2426NvEfRZhfKR/clrhCVgwhHe838HjLST1vvQsYcPKCiNJOQov9U9sv/MPV8qa2 KMk73VJFJz+QATXSU+/PMCVAgCOzp+wmtLAv6CSVok1ybTWz50AVD2fnbcUyH3jb6b1v NLj3qjDiPAXPYfAwk5RlR4vKKAzy4tjdDapDfAaYQqU/mHDakcHkC5HaK/Lo5YIodnh6 jFMQ== X-Gm-Message-State: AOAM532c4f/Pnkv2jlK15lEz/Deofu2tirIMp0DH9yQ3ZyE9+mGb/W2b ksGvk1ZtKDGD8C6lTx8s6DZIPQ== X-Google-Smtp-Source: ABdhPJy63E2JbTR7H47TOu+Msa/uRIC/V7BtGQA5Rn57FaeDRQtdVEqLTQ2Axcs0hq87m/0HtRYufQ== X-Received: by 2002:a63:ff57:: with SMTP id s23mr563333pgk.90.1613087189038; Thu, 11 Feb 2021 15:46:29 -0800 (PST) Received: from xps15.cg.shawcable.net (S0106889e681aac74.cg.shawcable.net. [68.147.0.187]) by smtp.gmail.com with ESMTPSA id iq6sm5932740pjb.6.2021.02.11.15.46.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Feb 2021 15:46:28 -0800 (PST) From: Mathieu Poirier To: ohad@wizery.com, bjorn.andersson@linaro.org, arnaud.pouliquen@st.com Cc: robh+dt@kernel.org, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 00/19] remoteproc: Add support for detaching a remote processor Date: Thu, 11 Feb 2021 16:46:08 -0700 Message-Id: <20210211234627.2669674-1-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Following the work done here [1], this set provides support for the remoteproc core to release resources associated with a remote processor without having to switch it off. That way a platform driver can be removed or the application processor power cycled while the remote processor is still operating. Modifications for this revision are detailed in the changelog of each patch but the main enhancement is the setup of a clean resource table when a remote processor is detached from. I have tested scenarios where the processor is detached and re-attached when booted from an external entity and the remoteproc core. I was also able to confirm that removing the platform driver of a detached remote processor works. Re-attaching the remote processor after re-inserting the platorm driver also works properly. Applies cleanly on rproc-next (43d3f2c715ce). Thanks, Mathieu Arnaud POULIQUEN (1): remoteproc: stm32: Move memory parsing to rproc_ops Mathieu Poirier (18): dt-bindings: remoteproc: Add bindind to support autonomous processors remoteproc: Re-check state in rproc_shutdown() remoteproc: Remove useless check in rproc_del() remoteproc: Rename function rproc_actuate() remoteproc: Add new RPROC_ATTACHED state remoteproc: Properly represent the attached state remoteproc: Add new get_loaded_rsc_table() to rproc_ops remoteproc: stm32: Move resource table setup to rproc_ops remoteproc: Add new detach() remoteproc operation remoteproc: Introduce function __rproc_detach() remoteproc: Introduce function rproc_detach() remoteproc: Properly deal with the resource table remoteproc: Add return value to function rproc_shutdown() remoteproc: Properly deal with a kernel panic when attached remoteproc: Properly deal with a stop request when attached remoteproc: Properly deal with a start request when attached remoteproc: Properly deal with detach request remoteproc: Refactor rproc delete and cdev release path .../bindings/remoteproc/remoteproc-core.yaml | 27 ++ drivers/remoteproc/remoteproc_cdev.c | 32 +- drivers/remoteproc/remoteproc_core.c | 307 ++++++++++++++++-- drivers/remoteproc/remoteproc_elf_loader.c | 24 +- drivers/remoteproc/remoteproc_internal.h | 10 + drivers/remoteproc/remoteproc_sysfs.c | 20 +- drivers/remoteproc/stm32_rproc.c | 168 +++++----- include/linux/remoteproc.h | 27 +- 8 files changed, 465 insertions(+), 150 deletions(-) create mode 100644 Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml -- 2.25.1 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-12.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 1400AC433E0 for ; Thu, 11 Feb 2021 23:48:03 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C728A64E44 for ; Thu, 11 Feb 2021 23:48:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C728A64E44 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=rXPLY6SCN4sSSV+Mpj5vVzGrsQ9UaGkM9nEvOjKlqzE=; b=ZadUbR7mAKbbCJ/6c2ETx9Bck2 k6OEbXb0MWGMhGdLDnhs/C6r1KyzLQGlBdYud5BrTN+aLMnwF/iCz5W1+cP+mkqGXspn8JGgM2Nlv kgkSXfSc0Msqm/FmFCRjybC9cGfkHPgsxzvtwfbd7bhufGMAqXNWbTPQZay5ncQiv6yIjzBBelsLB 3DqdB7wn+sOh68xHMICZQSgO6ZaCpDNEY0MS/PWozsLkklYvsuzv0hWeJ7l+O1LlhejGLg+GQvjKF mCVrZMGTZrsS5dzrBvRueErbsJy9uIOspbKH02BXi0l7opAvQA8QcObr5nGsQU4bVA/4qs92aOLv1 0cQM60Nw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lALfR-0004Jj-Sc; Thu, 11 Feb 2021 23:46:38 +0000 Received: from mail-pg1-x52d.google.com ([2607:f8b0:4864:20::52d]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lALfM-0004GR-Pg for linux-arm-kernel@lists.infradead.org; Thu, 11 Feb 2021 23:46:34 +0000 Received: by mail-pg1-x52d.google.com with SMTP id o7so5076585pgl.1 for ; Thu, 11 Feb 2021 15:46:30 -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=EkrytJ9LzBZQeMfRS4wLQprxHkYkItxpKGh4h54tQFM=; b=Oc6IEf1NnavzFlmiOhR4OVBYD33muPM4q1z/iKRkQxt10gl+5ZoYuYo4/r1DKNyJmr MFC0GIIU2/Iu+3D3DukC25EvTRCx8CmpnbdMRW7aEuF9TdVJ3uj2rBtpM4kC/9MpiVcJ iI9iz8yoavYbxR25JET4iDGqfdYM3adlNpGNfckZQerBIq5BTRSvZSZWFbP17KG7WaIS wpLXhupm8CNI5EEgwCqu4fQ5gNIkAFg0znnBU5Nl29aNqia6lr7UhMAWXbHD7xNqldgI PZNGT0D7eXzdcWvMy8bsun/XvdOeU2Ir0wXRc4XHe07F1CakLCO+D6Sy/b9g4i8ynBne Jmig== 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=EkrytJ9LzBZQeMfRS4wLQprxHkYkItxpKGh4h54tQFM=; b=bS1Puhsa8G4J41NHyMUyaQmc+oW8pf1I3dwsEWaF7Tl7063NEPYrxo04CoRZJamEdv poEiHn3gL4MuvkLJAbmvrDzIlPL/6KDrSs3N90kxsOX/fptlXVKTru1NHH6FLbGW+Ry5 2T9KQcrLvvMNCarn90qaOE2ZhtwgiVL+r3ZqloRTgQmDrGe2M8yTGUK6Rg4p1QLfv3qU xSKU9aPPhO9yy0lXk/PTBvGQOZkdgodJIGrOdUNhnD1LmM4Qhfi7g9J1J3XO8BM9K5IG dRhI/3vswWhfafOXnE2emIrXtUf/MDOTKF8tGC0mxTJmNRpaWOewdgsA3hiT0Ll2rju7 fc4A== X-Gm-Message-State: AOAM53330BKHvOGthj3sG8FqOd4n8CN+vaEHAaEyiaVGFxGr4jKP42eQ lGrE7aFB0uwow2p5cCeHtfUy/Q== X-Google-Smtp-Source: ABdhPJy63E2JbTR7H47TOu+Msa/uRIC/V7BtGQA5Rn57FaeDRQtdVEqLTQ2Axcs0hq87m/0HtRYufQ== X-Received: by 2002:a63:ff57:: with SMTP id s23mr563333pgk.90.1613087189038; Thu, 11 Feb 2021 15:46:29 -0800 (PST) Received: from xps15.cg.shawcable.net (S0106889e681aac74.cg.shawcable.net. [68.147.0.187]) by smtp.gmail.com with ESMTPSA id iq6sm5932740pjb.6.2021.02.11.15.46.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Feb 2021 15:46:28 -0800 (PST) From: Mathieu Poirier To: ohad@wizery.com, bjorn.andersson@linaro.org, arnaud.pouliquen@st.com Subject: [PATCH v5 00/19] remoteproc: Add support for detaching a remote processor Date: Thu, 11 Feb 2021 16:46:08 -0700 Message-Id: <20210211234627.2669674-1-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210211_184633_168448_A17B45B5 X-CRM114-Status: GOOD ( 15.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, alexandre.torgue@st.com, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, mcoquelin.stm32@gmail.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Following the work done here [1], this set provides support for the remoteproc core to release resources associated with a remote processor without having to switch it off. That way a platform driver can be removed or the application processor power cycled while the remote processor is still operating. Modifications for this revision are detailed in the changelog of each patch but the main enhancement is the setup of a clean resource table when a remote processor is detached from. I have tested scenarios where the processor is detached and re-attached when booted from an external entity and the remoteproc core. I was also able to confirm that removing the platform driver of a detached remote processor works. Re-attaching the remote processor after re-inserting the platorm driver also works properly. Applies cleanly on rproc-next (43d3f2c715ce). Thanks, Mathieu Arnaud POULIQUEN (1): remoteproc: stm32: Move memory parsing to rproc_ops Mathieu Poirier (18): dt-bindings: remoteproc: Add bindind to support autonomous processors remoteproc: Re-check state in rproc_shutdown() remoteproc: Remove useless check in rproc_del() remoteproc: Rename function rproc_actuate() remoteproc: Add new RPROC_ATTACHED state remoteproc: Properly represent the attached state remoteproc: Add new get_loaded_rsc_table() to rproc_ops remoteproc: stm32: Move resource table setup to rproc_ops remoteproc: Add new detach() remoteproc operation remoteproc: Introduce function __rproc_detach() remoteproc: Introduce function rproc_detach() remoteproc: Properly deal with the resource table remoteproc: Add return value to function rproc_shutdown() remoteproc: Properly deal with a kernel panic when attached remoteproc: Properly deal with a stop request when attached remoteproc: Properly deal with a start request when attached remoteproc: Properly deal with detach request remoteproc: Refactor rproc delete and cdev release path .../bindings/remoteproc/remoteproc-core.yaml | 27 ++ drivers/remoteproc/remoteproc_cdev.c | 32 +- drivers/remoteproc/remoteproc_core.c | 307 ++++++++++++++++-- drivers/remoteproc/remoteproc_elf_loader.c | 24 +- drivers/remoteproc/remoteproc_internal.h | 10 + drivers/remoteproc/remoteproc_sysfs.c | 20 +- drivers/remoteproc/stm32_rproc.c | 168 +++++----- include/linux/remoteproc.h | 27 +- 8 files changed, 465 insertions(+), 150 deletions(-) create mode 100644 Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel