From patchwork Fri Jan 26 23:53:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oreoluwa Babatunde X-Patchwork-Id: 766588 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 618F5481B9; Fri, 26 Jan 2024 23:55:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706313358; cv=none; b=bxI7pB8++Qbx2PZSgvX1VdeEasJiL1wl/aQk+uy3syIEUVwm9AmOmBrUusAoZUnNFEqSwP4qXf1p3xVpKCIRaLJ/Hjeew2uDPXDb7DCfpGnpDnBZoQfcQc4oWiZpvjTUR1wgE+kW2WjRvC34PFZm3tXNOxAonVrrIhDkbR9T3C0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706313358; c=relaxed/simple; bh=ONtrm6R2V6s330NX24r9fohE5uKqpWTjEdCapV2pVlo=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=h/A99/MGez+j0FjDE4Reb3qCxbcUp6YWT4rKsfcV2LOWY1sh+i6SVr9hdPHPoDEJtbIG8dSTEN7Dwt3BYYy6dwdtLfF7LjOLjCsr7tBBE42lzocRZTPYdJKnswPgQLhAlp4CED2b7IaIaoyrP7tzwGtUAPWj6pO0cnvbSEYaiAM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=DZh1sery; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="DZh1sery" Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40QNFGM5000561; Fri, 26 Jan 2024 23:55:03 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=CYGPa6HCLDQH93au0PnQ 9A1HcHQ+bX43VIg/AvMOFCk=; b=DZh1seryCtl06KZoy15bb09RwDhtGF+wpYzG gXDOw3n9l8Hn+57E51AxaYuGWj9movkrRrk50rJawPy6/AyB3UtSAYRHBcZgtiZr neU94rjAExhOyA18jkzZWSinUnTn/VJYip4eW4aMax/wfqgmbi2rV1VJwz+XDa9I CZB301rCdqkdTQ3KjFJlHNBxuPwFwYA9l1b047HHInGsiU3rvp/0F7sGowjmTcZF L2FQRj5g2aW1WmhhA3p9RnX2LSmwW2Vm7EQCaFJPHRUO0z8DgXNOYf1Ehh1RkGVb SVUOy7zUILodwhFiAmrnc+haUAzo+S7qFAxoby9PDtXDChmHtA== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vvfc8h01b-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:02 +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 40QNt1TV010026 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 23:55:01 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 15:54:58 -0800 From: Oreoluwa Babatunde To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , Oreoluwa Babatunde Subject: [PATCH 03/46] ARC: reserved_mem: Implement the new processing order for reserved memory Date: Fri, 26 Jan 2024 15:53:42 -0800 Message-ID: <20240126235425.12233-4-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> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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: Tj7EuhYxTjHT1Em1biSBx4kYC9Cl95-l X-Proofpoint-ORIG-GUID: Tj7EuhYxTjHT1Em1biSBx4kYC9Cl95-l 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 impostorscore=0 mlxscore=0 adultscore=0 clxscore=1015 phishscore=0 malwarescore=0 spamscore=0 suspectscore=0 priorityscore=1501 bulkscore=0 mlxlogscore=582 lowpriorityscore=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 after setup_arch_memory() in preparation for the dynamic allocation of the reserved_mem array using memblock. This is because memblock allocated memory is not writable until after the page tables have been setup on the arc architecture. Signed-off-by: Oreoluwa Babatunde --- arch/arc/kernel/setup.c | 3 +++ arch/arc/mm/init.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index d08a5092c2b4..44f00e8e16cd 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -523,6 +524,8 @@ void __init setup_arch(char **cmdline_p) setup_processor(); setup_arch_memory(); + fdt_init_reserved_mem(); + /* copy flat DT out of .init and then unflatten it */ unflatten_and_copy_device_tree(); diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index 6a71b23f1383..8cd86259d9ae 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -118,7 +118,7 @@ void __init setup_arch_memory(void) #endif early_init_fdt_reserve_self(); - early_init_fdt_scan_reserved_mem(); + early_fdt_scan_reserved_mem(); memblock_dump_all();