From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 8F1CF2E4257 for ; Tue, 10 Mar 2026 20:22:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773174125; cv=none; b=t6YWS1wcscFNbo/rXKqp89/oPJHmxkpt8N6zUZGuFuqzw4jOBJZe+rQ5CGn2j+HoGm313ZXnFPd+AZb46cPsuc8geTqvnHNXfsF+BmJhC+RK1xYcdrpp/rd1ZK659EpFwKlF9GDTc0bxaIc5w06fO4GiHx8xWq9MclxC4+15zyI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773174125; c=relaxed/simple; bh=wj+luXvDqOTuhru6DvwVtnX3t9V+pGkO1cWy33gHiXc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=LrF+XoI97LF5ahXz31+qEsAVWyGxK8ToQiIJbWKdX2P7bHFUSTOKUrqWaHFOspM7XubtSRET5RopIF3ArcDlsJWR09iugx/kPb3RbBb/uoEYCtIIn1mjAmEdLRIhG1CuNfk39SQcWhUiFN+wNyfQz0y1hAB8TUumrWu6cDaR5lI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=YSJh4uFS; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=IkGKb7cA; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="YSJh4uFS"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="IkGKb7cA" Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 62AIekDw3893219 for ; Tue, 10 Mar 2026 20:22:04 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= brkrGexervsDjeRqs9RzmRiixQVaocfEogoUtg08MW4=; b=YSJh4uFSvGRFmKbt xH++W5JgTe8Mvq0fGvsD2Y99YvKm3+U/JThznCK640M/4G1wZVGCwHZuJB5AL4uc BGdG2d5v0LPy05QsTa5J4pE91O5LS2IhS89xNVbJre3CaYQyhisVPdBrzA0Csrsf ch4dglNxZaJuU09OJoFN/NN/bZrojYcf+1p/WJ8VkvCTyRWoZfnLvhSr7kLf17QM MMnsMfF4h2wPWDlhwdbI84cesSWDUgqAj9pzWnJb+p16SotfK08GiYiZbRVt8sNd ckvjBYeQ1d4X6tW2894rVZYZgNXJ9STajqqZp56lAN+Eq/iY+76uyyg1rOD0XXbA cbB/LQ== Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com [209.85.210.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4ctkmystjj-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Tue, 10 Mar 2026 20:22:04 +0000 (GMT) Received: by mail-pf1-f199.google.com with SMTP id d2e1a72fcca58-8298b363fb6so15165014b3a.0 for ; Tue, 10 Mar 2026 13:22:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1773174123; x=1773778923; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=brkrGexervsDjeRqs9RzmRiixQVaocfEogoUtg08MW4=; b=IkGKb7cA6L+SM0btttu2n9BPmYXlhzQ5cYCiQxGbMlYBdZ0rAvl2cgh3Vy4NSueScH wl++0CyHSI9+AZtVWTQPHqweiF1fj2JhLopqZGTKKUVdaYyf7ioZB4H9ScSiAebWT03k OgvK3yXFyJ6YQJdKhTdyOcLlzOWeCL/nolrtXYGo9jE08OyT9CzhIzJ0FGy+KrHgNgQI 3g8axPLjmQCZGTn1cCpVSFExlXEEFquuSG3bvDfIBmcayxkWRO5mfkV4xI7Zexo0/V1z APPTn3LkpSYzWlNEdyu8VjcONXu+hLa3zSH1j0YFHGBxNd+W1OUNq/3KJejfmILJv7wg ooKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773174123; x=1773778923; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=brkrGexervsDjeRqs9RzmRiixQVaocfEogoUtg08MW4=; b=dBAQOlQDeQodOdTL/8wUI97Dm34mePNVa/lPmsNKUTdNeAHaEyx0o02lcjHsY1f8gl P/bICVVXnfwp2qGQ83yCH4NaXVqtT5zbi9ydn9W5qtzwk7pApfzXEiqpiUSRxFMLg62d KZqQ8VTQ6VP+SreP42zkwFazdq8aoAKZk5a8Qiu33HEnjnYE6vBgC0c1y0aC/oumyI5d 7zPxhgzQUPncYPv40DEe8YVnWJ2iH0RQNt39BypOzoL3X+n8shKEDpP8mCtprHeh/eHS Uroe3Xg6ML2wcvzpZIe1PV6UjaDZvCbHm8oSY16sJAcETTxtMztTqScLNF/BOqQzChBc Xq6Q== X-Gm-Message-State: AOJu0YzEdKEgnsgpeqIDVXZjTcYC59xcUwCSdZtqFE1rpktEJSVJ67s/ rxAfxHmdcokBxXLuUeQ65udsKRKYSrX3Y7r3e+0PdYhyM2SJqdjOOyvLxjzTGkHyAzVOZH8fTZT YcKWrNKZC5eyzsvtCYh7HgiuKGR4K8uCxQvPlmj4hQZHibW2hGOJxsgcQOvCA8w4= X-Gm-Gg: ATEYQzxOGAMjJriGMo1IjFz9Hv3prx028Q3WgqiqFkbl3z3//hy46ZRzDguWaJHSIme bzAoBNFfmJUxwbCBlC8pK/hBkJuyO6JSQx0/Um7zAJFKT8X7c2Zx0psO+Ic9G7vlESET+KbrvN9 LqcgHtQGKt2JtALsL/OdcG0Bi0sPHQMtNYmoYhVtWn0WZvBF+SB7ZJYtPUcCRV+FKTCLxR/ecEP o9SxZKtoZpJsJf3wo07Ilg9AwQmA9k3K+wOROk7SgPvjvRu8txnrHuXO/QMkLalsU7LpuGUxORZ iNZkHAbx2NPwI/O7OYD03Vel/d/mm2mrGDiyXU3ebhEWmmk742vv0QTuk8kydVcm9BEWOqbQ8Yc YOXbeLVH6kfNzXWO6tHnJn6VDd7mf6rfE3r9AUm+JF4TCpMDs X-Received: by 2002:a05:6a00:3e17:b0:828:f1d9:22cc with SMTP id d2e1a72fcca58-829f6f2abe6mr177038b3a.20.1773174123251; Tue, 10 Mar 2026 13:22:03 -0700 (PDT) X-Received: by 2002:a05:6a00:3e17:b0:828:f1d9:22cc with SMTP id d2e1a72fcca58-829f6f2abe6mr176989b3a.20.1773174122629; Tue, 10 Mar 2026 13:22:02 -0700 (PDT) Received: from hu-mojha-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-829f6dc2d0asm115262b3a.13.2026.03.10.13.21.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Mar 2026 13:22:02 -0700 (PDT) From: Mukesh Ojha Date: Wed, 11 Mar 2026 01:46:07 +0530 Subject: [PATCH v2 23/25] soc: qcom: smem: Add minidump platform device Precedence: bulk X-Mailing-List: workflows@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260311-minidump-v2-v2-23-f91cedc6f99e@oss.qualcomm.com> References: <20260311-minidump-v2-v2-0-f91cedc6f99e@oss.qualcomm.com> In-Reply-To: <20260311-minidump-v2-v2-0-f91cedc6f99e@oss.qualcomm.com> To: Jonathan Corbet , Shuah Khan , Eugen Hristev , Arnd Bergmann , Dennis Zhou , Tejun Heo , Christoph Lameter , Andrew Morton , Thomas Gleixner , Peter Zijlstra , Anna-Maria Behnsen , Frederic Weisbecker , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Kees Cook , Brendan Jackman , Johannes Weiner , Zi Yan , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , Barry Song , Youngjun Park , Petr Mladek , John Ogness , Sergey Senozhatsky , Bjorn Andersson , Mathieu Poirier , Konrad Dybcio , Mukesh Ojha , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Saravana Kannan Cc: workflows@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org X-Mailer: b4 0.14-dev-f7c49 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773173756; l=2191; i=mukesh.ojha@oss.qualcomm.com; s=20250708; h=from:subject:message-id; bh=I7h36vRINCl73eGOjCLTs1uEZfJpGZtYWsp4d/Eb0ng=; b=rMdSNPF/xiEgp7h/2PrlHDpbz9A7fwnRMH+HKK1W4eqdbkbtkF909spMFFFZNQ9yLATM6QiGz i5Npb95/nW8AU/UjvwC8S9P1wIPcyGpH6PiS6CA9GiFk8+2THVKvvef X-Developer-Key: i=mukesh.ojha@oss.qualcomm.com; a=ed25519; pk=eX8dr/7d4HJz/HEXZIpe3c+Ukopa/wZmxH+5YV3gdNc= X-Authority-Analysis: v=2.4 cv=RYudyltv c=1 sm=1 tr=0 ts=69b07d6c cx=c_pps a=WW5sKcV1LcKqjgzy2JUPuA==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=3CFpAjl5I9ltKDqHFfsA:9 a=QEXdDO2ut3YA:10 a=OpyuDcXvxspvyRM73sMx:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-GUID: MGCPmiVzVakoe7jfyk6HcgRZiyCJqN44 X-Proofpoint-ORIG-GUID: MGCPmiVzVakoe7jfyk6HcgRZiyCJqN44 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzEwMDE3NyBTYWx0ZWRfX5IFZRiEN9TjJ 93DrKmvPbLNdE30Fb/QJvlEmh4eckGu1Mk40SuE9hSz7k4gbn9LkowKodmpAbacTiOlMmrSa8mC wyr5rapesNPRzjfw0HfDt4Oqw3upcvah17XXEOXNe2upL4S0K/dChFc7CGtGz8w/6TnpFX4kuZl EAwRG5c/Jagk4vv3anbIiUEhcAx7Ragf1o1441KUP4fBM4LMp6V6T0eHgNJEB5fWFej/WLPX3L7 xXC/Rk+8sVh5B+pfx/pmqQwsh3+qpN/EPjgBVJY/3PqYUxkcooXhq6I08HZmQGp43Zs6pJ0biaT +CsqJ1+3wWi+JSqPgzNQiM2NNlx/MCGh5GQRarbyw4YJ81Mfs3oWcwiJyEtPmOvuixXHfQQWVxt 52+nFfGc5HCCpnjaRWKkKIIoSfNLrVR5YcdRbLtFEbu24XBLh1mVKREs0DE+YvFXIDrFZlNjmF9 pl4bYVAYEz1L0WSXxrw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-10_04,2026-03-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 impostorscore=0 malwarescore=0 spamscore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603100177 From: Eugen Hristev Minidump can collect various memory snippets using Qualcomm boot firmware support. To determine which snippets should be collected, each snippet must be registered by the kernel into a shared memory table managed by the Qualcomm SMEM driver. To instantiate the minidump platform driver, register its data using platform_device_register_data(). The minidump driver will later probe the device and retrieve the required memory snippets from the memory inspection table (meminspect). Signed-off-by: Eugen Hristev Signed-off-by: Mukesh Ojha --- drivers/soc/qcom/smem.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c index d5c94b47f431..65d7b4d99677 100644 --- a/drivers/soc/qcom/smem.c +++ b/drivers/soc/qcom/smem.c @@ -270,6 +270,7 @@ struct smem_region { * @partitions: list of partitions of current processor/host * @item_count: max accepted item number * @socinfo: platform device pointer + * @mdinfo: minidump device pointer * @num_regions: number of @regions * @regions: list of the memory regions defining the shared memory */ @@ -280,6 +281,7 @@ struct qcom_smem { u32 item_count; struct platform_device *socinfo; + struct platform_device *mdinfo; struct smem_ptable *ptable; struct smem_partition global_partition; struct smem_partition partitions[SMEM_HOST_COUNT]; @@ -1242,12 +1244,20 @@ static int qcom_smem_probe(struct platform_device *pdev) if (IS_ERR(smem->socinfo)) dev_dbg(&pdev->dev, "failed to register socinfo device\n"); + smem->mdinfo = platform_device_register_data(&pdev->dev, "qcom-minidump", + PLATFORM_DEVID_AUTO, NULL, + 0); + if (IS_ERR(smem->mdinfo)) + dev_err(&pdev->dev, "failed to register platform md device\n"); + return 0; } static void qcom_smem_remove(struct platform_device *pdev) { platform_device_unregister(__smem->socinfo); + if (!IS_ERR(__smem->mdinfo)) + platform_device_unregister(__smem->mdinfo); /* Set to -EPROBE_DEFER to signal unprobed state */ __smem = ERR_PTR(-EPROBE_DEFER); -- 2.50.1