From patchwork Fri Jan 26 23:54:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oreoluwa Babatunde X-Patchwork-Id: 13533704 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 15AC1C48285 for ; Fri, 26 Jan 2024 23:55:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id F0E23C43141; 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 1718FC43390; Fri, 26 Jan 2024 23:55:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.kernel.org 1718FC43390 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 (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40QNABQ2002718; 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=9NIeVab+4KQFwJjvpVja hQhcsSm6ssiCjFbQstrLKNA=; b=fMr+6M2D9JB9W03G4AclBkYHg1/U5DQfspNX 5yuTVgvmYEwIj8iK8EfN4MMYa67iFl+IYDwYcEJc1VEtdM93+iXz/OS4kruq0V6R l/678czq8sW12SjfGN+CYEQtse7BAKFrQILPO5ZTn+BzkYFtUjmBXVC+sLAcrHrY g09yy/jWWYTDBEw+ycJjfb0+8lHGKnvi3UCLsmMO5x9JuC9RgYAxSCL1IX7zHoja gpyjuA9L9ngrf6eximgRRNu9o0y0OB/0rACAHmr6AuCaf4ycIT7qWIMBazEqm6Az UCp/q6cFxXD0rf7/NdiBo0f4h3alKFvPmy+o3dO3GXQVMWaT6w== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vvgp2gru5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:20 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40QNtJP6010237 (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 15:55:07 -0800 From: Oreoluwa Babatunde List-Id: To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , Oreoluwa Babatunde Subject: [PATCH 22/46] csky: resrved_mem: Move fdt_init_reserved_mem() below unflatten_device_tree() Date: Fri, 26 Jan 2024 15:54:01 -0800 Message-ID: <20240126235425.12233-23-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: LxtbCnVNAdzpVkcCk8ApI7GAjVIE2oTM X-Proofpoint-ORIG-GUID: LxtbCnVNAdzpVkcCk8ApI7GAjVIE2oTM 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 mlxscore=0 malwarescore=0 mlxlogscore=863 phishscore=0 adultscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 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/csky/kernel/setup.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/csky/kernel/setup.c b/arch/csky/kernel/setup.c index 4e2b739ac968..d8c65819877b 100644 --- a/arch/csky/kernel/setup.c +++ b/arch/csky/kernel/setup.c @@ -73,10 +73,9 @@ void __init setup_arch(char **cmdline_p) csky_memblock_init(); - fdt_init_reserved_mem(); - unflatten_and_copy_device_tree(); + fdt_init_reserved_mem(); #ifdef CONFIG_SMP setup_smp(); #endif