From nobody Thu Sep 19 23:20:36 2024 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (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 1C02469959; Wed, 10 Jul 2024 08:42:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=60.244.123.138 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720600962; cv=none; b=DaGhm5KFtJ2Xj8zI2kOkmpeD67b+JgK0CeyGvc7xvCzqn4q7rRwcPXxTKiCPYFTYYJ8QvuRBQ8k9iDhe/NJbh4maLhf3H4ZgByEh+WGCUm3JCpkvS8WmohrBXcx1/PsH6JSodgzEvAfy4SapvCgYyehO1N8/ysDXILj4QXwiYBU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720600962; c=relaxed/simple; bh=cK0/PK+NRAO3uPS1EAy4NbNQUJbDvj4WDcxlxkkcaYA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=TBiXXinOOO6mgSaMjRwVBI7JztLTTvxztJmUDxOZQpUQtTlO5pf8zN4IAjlDT4IeW746l3wMobWLPZM6m7s7hZ2Awpbd8szxWCTmb1TjOWos1+1+qGV2aOKjXt3yx83cajbtQRVsO7nuOIF/eMUSZM+DDf70CDL0I265kH54oUA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=ompqiySm; arc=none smtp.client-ip=60.244.123.138 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="ompqiySm" X-UUID: 55a849783e9811efb5b96b43b535fdb4-20240710 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=MI5vuW1LnaMrn5kfyGwiG4y2NeFearCTZJahac3SH7k=; b=ompqiySmZiA3qhIaRBMTtm88iyHrQCfQvUm9oMuyHo5wA7D6k2iyr6smZu/skmDgZIrmYddwO0ljVcFQk5exDk6XAEGURmS+5sb3EL37n/DE5x3yvHJdG19n8qvmwvlp08psuU57uyUBLx1mkIw2f9O54WZ/QrPi2ijE50hRuzk=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.40,REQID:4fdf9a0a-8331-4628-93e3-92d01c688017,IP:0,U RL:0,TC:0,Content:0,EDM:-25,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:ba885a6,CLOUDID:509b2cd5-0d68-4615-a20f-01d7bd41f0bb,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:1,IP:nil,UR L:11|1,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES: 1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: 55a849783e9811efb5b96b43b535fdb4-20240710 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 744433267; Wed, 10 Jul 2024 16:42:26 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 10 Jul 2024 16:42:25 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Wed, 10 Jul 2024 16:42:25 +0800 From: Shun-yi Wang To: Bjorn Andersson , Mathieu Poirier CC: Matthias Brugger , AngeloGioacchino Del Regno , , , , , , , , , shun-yi.wang Subject: [PATCH RFC 1/1] remoteproc: mediatek: Support reserved CMA regions Date: Wed, 10 Jul 2024 16:42:00 +0800 Message-ID: <20240710084200.6561-2-shun-yi.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240710084200.6561-1-shun-yi.wang@mediatek.com> References: <20240710084200.6561-1-shun-yi.wang@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--2.598500-8.000000 X-TMASE-MatchedRID: bPjU8R/NGeHeckYuh8C4OQ2IdVM+s7+jUAjrAJWsTe+CsBeCv8CM/az6 uKpF6xLxqyiNfoPmYnRH3qAy0ABMwKFx4PiqFtlGtw+xHnsmQjPt/okBLaEo+IeUNQK7Qj5cVSd AA6mVeIaNy4aKfO9yVTl4fr3J7TtwnU4Y8605XzmTd7CJ8bYw01g3VqSTJ7SoyWCL+8tLbva+Un f56ZSSHOLzNWBegCW2wgn7iDBesS1YF3qW3Je6+7hP13miKAO1q/QrR1KGx2yjSCc90prGUVkuj HvdNL55pp1v2VcFzg/64xLte41bXiJAkpshrClmC2Elov3YnbR0/j0kEc2v0YCE5xpCtDRTUbJF yh4XXyqYo/TPOlMB4bCh3zE4wqa8wIE77PEBbml+3BndfXUhXQ== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--2.598500-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: DFD53FDEE7BA199199010BC5F6077F30E6E3A8A1681A402B60B81F5CCAB7F07D2000:8 X-MTK: N Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "shun-yi.wang" In order to reserve specific Contiguous Memory Allocator (CMA) regions for hardware use. When the name of the reserved region contains "cma", then a corresponding CMA heap is added. Signed-off-by: shun-yi.wang --- drivers/remoteproc/mtk_scp.c | 38 ++++++++++++++++++++++++++++-------- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c index e744c07507ee..ca0a4a52ece9 100644 --- a/drivers/remoteproc/mtk_scp.c +++ b/drivers/remoteproc/mtk_scp.c @@ -4,6 +4,7 @@ =20 #include #include +#include #include #include #include @@ -1006,22 +1007,43 @@ EXPORT_SYMBOL_GPL(scp_mapping_dm_addr); =20 static int scp_map_memory_region(struct mtk_scp *scp) { - int ret; + int ret, i, err; const struct mtk_scp_sizes_data *scp_sizes; + struct device_node *node =3D scp->dev->of_node; + struct of_phandle_iterator it; + + i =3D 0; + of_for_each_phandle(&it, err, node, "memory-region", NULL, 0) { + ret =3D of_reserved_mem_device_init_by_idx(scp->dev, node, i); + + if (ret) { + dev_err(scp->dev, "failed to assign memory-region: %s\n", + it.node->name); + of_node_put(it.node); + return -ENOMEM; + } + +#ifdef CONFIG_DMABUF_HEAPS_CMA + if (strstr(it.node->name, "cma")) { + /* Reserved cma memory region */ + ret =3D dma_heap_add_cma(scp->dev); + if (ret) { + dev_err(scp->dev, "Failed to add reserved cma"); + of_node_put(it.node); + return ret; + } + } +#endif /* CONFIG_DMABUF_HEAPS_CMA */ =20 - ret =3D of_reserved_mem_device_init(scp->dev); + i++; + } =20 /* reserved memory is optional. */ - if (ret =3D=3D -ENODEV) { + if (!i) { dev_info(scp->dev, "skipping reserved memory initialization."); return 0; } =20 - if (ret) { - dev_err(scp->dev, "failed to assign memory-region: %d\n", ret); - return -ENOMEM; - } - /* Reserved SCP code size */ scp_sizes =3D scp->data->scp_sizes; scp->cpu_addr =3D dma_alloc_coherent(scp->dev, scp_sizes->max_dram_size, --=20 2.18.0