From patchwork Fri Jan 26 23:53:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oreoluwa Babatunde X-Patchwork-Id: 13533692 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 D5F22C48286 for ; Fri, 26 Jan 2024 23:55:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id B3D5EC433B1; Fri, 26 Jan 2024 23:55:23 +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 6199DC4160E; Fri, 26 Jan 2024 23:55:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.kernel.org 6199DC4160E 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 (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40QNt5TQ028752; Fri, 26 Jan 2024 23:55:05 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=T3DjNUlLclRRSxUX+FF8 745CWeIU93BibdyqAGILJoQ=; b=GjgSbFTTGQ/HN0iWI3cgW+MBA6dak3/88u13 5ptkFzVdILA/nC4Q1LNv7vIkqlYYCgfZmmNDEUcUIp6Rc+XqK9eNZRo7C0xamKA3 RwQY8aPOWTjF50p1EX2VKzhG3jVnJ9T7O0NUXuoFe98JXEb2SN7Nt8/4+SbCFoH2 qR+1BY1cFoJ/VQOsouN73kpqpsniqsajlpcE5nyot4PWGNTIu9zSzYm5IOHObeSs E7G/2DuX/qWHYxmr8xRoM1j2/T7XPBZpWXc6sh6NCoofSiqf6iGx5M+JPURH/S7B syg3rbo67kG/52xFHHZp41WI5/XbIjWO7hXprQQiETO1V36u7w== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vv8e89uxa-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:05 +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 40QNt43S011314 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:04 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 15:54:59 -0800 From: Oreoluwa Babatunde List-Id: To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , Oreoluwa Babatunde Subject: [PATCH 07/46] Loongarch: reserved_mem: Implement the new processing order for reserved memory Date: Fri, 26 Jan 2024 15:53:46 -0800 Message-ID: <20240126235425.12233-8-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: 464t_X2bvbRs9OhyGDQ_riVstaAZ3xkC X-Proofpoint-ORIG-GUID: 464t_X2bvbRs9OhyGDQ_riVstaAZ3xkC 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 mlxscore=0 phishscore=0 spamscore=0 malwarescore=0 priorityscore=1501 mlxlogscore=632 impostorscore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 clxscore=1015 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401190000 definitions=main-2401260176 Call early_fdt_scan_reserved_mem() in place of early_init_fdt_scan_reserved_mem() to carry out the first stage of the reserved memory processing only. The early_fdt_scan_reserved_mem() function is used to scan through the DT and mark all the reserved memory regions as reserved or nomap as needed, as well as allocate the memory required by the dynamically-placed reserved memory regions. The second stage of the reserved memory processing is done by fdt_init_reserved_mem(). This function is used to store the information of the statically-placed reserved memory nodes in the reserved_mem array as well as call the region specific initialization function on all the stored reserved memory regions. The call to fdt_init_reserved_mem() is placed right after early_fdt_scan_reserved_mem() since memblock allocated memory should already be writable at this point. Signed-off-by: Oreoluwa Babatunde --- arch/loongarch/kernel/setup.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index edf2bba80130..72b164d3ace0 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -390,8 +391,9 @@ static void __init arch_mem_init(char **cmdline_p) check_kernel_sections_mem(); - early_init_fdt_scan_reserved_mem(); + early_fdt_scan_reserved_mem(); + fdt_init_reserved_mem(); /* * In order to reduce the possibility of kernel panic when failed to * get IO TLB memory under CONFIG_SWIOTLB, it is better to allocate