From patchwork Fri Jan 26 23:53:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oreoluwa Babatunde X-Patchwork-Id: 13533703 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D0C4CC47DA9 for ; Fri, 26 Jan 2024 23:55:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id BA5F6C433F1; Fri, 26 Jan 2024 23:55:34 +0000 (UTC) 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.kernel.org (Postfix) with ESMTPS id BD009C433C7; Fri, 26 Jan 2024 23:55:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.kernel.org BD009C433C7 Authentication-Results: smtp.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.kernel.org; spf=pass smtp.mailfrom=quicinc.com Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40QNF6mC009282; Fri, 26 Jan 2024 23:55:20 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type; s=qcppdkim1; bh=FYNloLSklg4we2MPnWB0 /vfF5RwFSqhW13Tgm/u/lCM=; b=hcdD+Yg4WcX9yBVHG9+Jv0amItAekixfgN4w fXjJDe7gxyPYum74aK++bq3BHjicTedyPopxay0PHMuMniMwerjEzJJtZrsNmQD/ c0bJ7YE1OEmrZeAvhkkSkEgfGr+T25XgQsTqMnHS8ci7UFWJVjJh+auMHwtJUvkq RVNriPZTzF1HdIZgmr02qUmVfJn+PyOHESgaCZUs0SOcOfxp8rY1hcws/FrdwVrQ Cj/EujeZr1o3em9MmRXG241lJDcLVtxrp1G1KEHWK9IhWjpk4RZ6+Li7A+KMziJk si6QxipgN1JE3CGij82EfAxeltSlERAtOvIW3RBnce0lbS6a+g== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vvmmmg7w6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:19 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40QNtI3Q011795 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:19 GMT Received: from hu-obabatun-lv.qualcomm.com (10.49.16.6) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Fri, 26 Jan 2024 15:55:05 -0800 From: Oreoluwa Babatunde List-Id: To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , Oreoluwa Babatunde Subject: [PATCH 20/46] ARM: resrved_mem: Move fdt_init_reserved_mem() below unflatten_device_tree() Date: Fri, 26 Jan 2024 15:53:59 -0800 Message-ID: <20240126235425.12233-21-quic_obabatun@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240126235425.12233-1-quic_obabatun@quicinc.com> References: <20240126235425.12233-1-quic_obabatun@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: MPEXGYeegBck1ubRNy3mTzFc2f9Wh7_U X-Proofpoint-ORIG-GUID: MPEXGYeegBck1ubRNy3mTzFc2f9Wh7_U X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 mlxscore=0 phishscore=0 adultscore=0 spamscore=0 mlxlogscore=806 priorityscore=1501 malwarescore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401190000 definitions=main-2401260176 The unflattened devicetree structure is available to be used not long after the page tables have been set up on most architectures, and is available even before that on other architectures. Hence, move the call to fdt_init_reserved_mem() to after unflatten_device_tree() is called so that the reserved memory nodes can be accessed using the unflattened device tree APIs. Using the unflattened devicetree APIs is more efficient than using the flattened devicetree APIs. Signed-off-by: Oreoluwa Babatunde --- arch/arm/kernel/setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 8cf3709ed985..36fa18e80ab3 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1163,8 +1163,6 @@ void __init setup_arch(char **cmdline_p) paging_init(mdesc); - fdt_init_reserved_mem(); - kasan_init(); request_standard_resources(mdesc); @@ -1175,6 +1173,8 @@ void __init setup_arch(char **cmdline_p) unflatten_device_tree(); + fdt_init_reserved_mem(); + arm_dt_init_cpu_maps(); psci_dt_init(); #ifdef CONFIG_SMP