From patchwork Mon Oct 7 13:16:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud Pouliquen X-Patchwork-Id: 13824676 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) (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 B59521D2F4A; Mon, 7 Oct 2024 13:21:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.132.182.106 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728307301; cv=none; b=UPSRDs/ZvER1J2SYed/15Ma0DZ6cqjKbfakKi1weWgufKmEbLH5mBP8UVNvPBznfpsGEYmQqWoImF6iyvWKJzTsP9wQ9h8ftCMv3G2ta+WvSdL+9o44SiJJznZosbCK5OGs+0O0jrv/0wEwDFrndOnN4QZMHqLt5RktKcitB4Rc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728307301; c=relaxed/simple; bh=81rTs1SNJEqIZPhrNaqh78EaJOumeV7J4DPS0GYZ27k=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ZykNuiP19Og3Si7pJ3+CzfAt7ipJDYklXNVlkeFS2G4A3QM1DtRUNSMiUcE73FMfzOpkJgIlit9SGoO4zb/oWYy3KOfFh4n3dGAYk3re6ZqgseWndbSwWChH98ik+YCmQ5nwV5e4knSidhJ65AK2yOhK3W6qJhN+nTi/piS0jY0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=qoQlYFEb; arc=none smtp.client-ip=185.132.182.106 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="qoQlYFEb" Received: from pps.filterd (m0369458.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 497BJ1Bq022075; Mon, 7 Oct 2024 15:21:05 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= ZycAV1rf60jTMcB7G0HzNjk3eCOPRWa+/2XY5pxf0S0=; b=qoQlYFEbFPMJ2QmQ oVrGy8+fGgCroP9oMfOdZW6nlZUzflF/9LAuCO+bz7RweYOOf6PtqR/D3eiuc00t hJAr/fjgpaT73dy73tJ6dFmqylvQvolCcS0drKrmQsaRw+txSieYmGT2+Taq39S5 lgHmhaMU4LNbwi5o3IG0RMrJUdNFsx7QHZ4tvVfkq9wwe370CjdDxybAc39Ke2a9 ae3cQpH+D4I2Px++4sS5eqLpS+nVWEfDFzUlXgYTae8gZrv+YRS5O6N7knQkLk3Q f4+WZ4Tbu3Gtv17brtJh3tV6T+2mqzYEQbGHrIJW2gsF6nWhNKYLCtktE9UWwPjP YWgcOw== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 423f10pc4q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 07 Oct 2024 15:21:05 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 5CEF14004B; Mon, 7 Oct 2024 15:19:40 +0200 (CEST) Received: from Webmail-eu.st.com (eqndag1node6.st.com [10.75.129.135]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 40C5C26C073; Mon, 7 Oct 2024 15:16:44 +0200 (CEST) Received: from SAFDAG1NODE1.st.com (10.75.90.17) by EQNDAG1NODE6.st.com (10.75.129.135) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.37; Mon, 7 Oct 2024 15:16:44 +0200 Received: from localhost (10.48.86.121) by SAFDAG1NODE1.st.com (10.75.90.17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.37; Mon, 7 Oct 2024 15:16:43 +0200 From: Arnaud Pouliquen To: Bjorn Andersson , Mathieu Poirier , Jens Wiklander , "Rob Herring" , Krzysztof Kozlowski , Conor Dooley CC: , , , , , , Arnaud Pouliquen Subject: [PATCH v10 4/7] remoteproc: Introduce release_fw optional operation Date: Mon, 7 Oct 2024 15:16:17 +0200 Message-ID: <20241007131620.2090104-5-arnaud.pouliquen@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241007131620.2090104-1-arnaud.pouliquen@foss.st.com> References: <20241007131620.2090104-1-arnaud.pouliquen@foss.st.com> Precedence: bulk X-Mailing-List: linux-remoteproc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SAFCAS1NODE1.st.com (10.75.90.11) To SAFDAG1NODE1.st.com (10.75.90.17) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 This patch updates the rproc_ops struct to include an optional release_fw function. The release_fw ops is responsible for releasing the remote processor firmware image. The ops is called in the following cases: - An error occurs in rproc_start() between the loading of the segments and the start of the remote processor. - after stopping the remote processor. Signed-off-by: Arnaud Pouliquen --- Update vs previous revision: - New commit that preplace previous one to introduce ops->release_fw --- drivers/remoteproc/remoteproc_core.c | 5 +++++ include/linux/remoteproc.h | 3 +++ 2 files changed, 8 insertions(+) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 7694817f25d4..46863e1ca307 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1258,6 +1258,9 @@ static int rproc_alloc_registered_carveouts(struct rproc *rproc) static void rproc_release_fw(struct rproc *rproc) { + if (rproc->ops->release_fw) + rproc->ops->release_fw(rproc); + /* Free the copy of the resource table */ kfree(rproc->cached_table); rproc->cached_table = NULL; @@ -1377,6 +1380,8 @@ static int rproc_start(struct rproc *rproc, const struct firmware *fw) unprepare_subdevices: rproc_unprepare_subdevices(rproc); reset_table_ptr: + if (rproc->ops->release_fw) + rproc->ops->release_fw(rproc); rproc->table_ptr = rproc->cached_table; return ret; diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 73f640dd0fc0..bdf4d94a9e63 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -381,6 +381,8 @@ enum rsc_handling_status { * @panic: optional callback to react to system panic, core will delay * panic at least the returned number of milliseconds * @coredump: collect firmware dump after the subsystem is shutdown + * @release_fw: optional function to release the firmware image from ROM memories. + * This function is called after stopping the process or in case of an error */ struct rproc_ops { int (*prepare)(struct rproc *rproc); @@ -403,6 +405,7 @@ struct rproc_ops { u64 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw); unsigned long (*panic)(struct rproc *rproc); void (*coredump)(struct rproc *rproc); + void (*release_fw)(struct rproc *rproc); }; /**