From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (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 743203191D0; Wed, 15 Oct 2025 12:57:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.61.82.184 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760533040; cv=none; b=ACR858Ts/CBi9S1dX3/jWN/2zw5By+Fx7gi2mIkwLo7qjQwH2KbgGHOPJh1kRJy2zt+xGgmMWRruWUVUN8Pl/5wq3eFS2fnl4GE4d/6jIQQl6q4JvVyYBR40dxuh/ox8FLd2N6F3f4Mvigtld0cV0sVQOSnT8mxwXkwREpYFTrE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760533040; c=relaxed/simple; bh=t3e4rPFoI0I8mewZjtovKqY2KE1DnTifmJbgEHz8+Fs=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=gd1ba5GUWSDwiesRkWHZib2IKXCDcBJk/SNfx/uvQJWwyEkubYfanymxAL37GeSF3kXC8mbsqvu5SUQWMvR7sFj9M8Lys++gmkA/vLDFVVG2hgoXkd9JyRQXvrFogNKymOilNMkGKbv4iMCEShz8c7fXtUJ1PJr5nSrimBbh6VE= 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=LqE2pllm; arc=none smtp.client-ip=210.61.82.184 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="LqE2pllm" X-UUID: 763480cca9c611f0b33aeb1e7f16c2b6-20251015 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=OXEc955O1cg/NAX2mjyGeMZRRZzVJF2HlDf4IpQzb2Q=; b=LqE2pllmwHO8PANSXN+46N1B15nZN6WrgCz4p7EdjShUX51ughLk+WdfNCYg1uUBfvwKmpim/uP00uJpWmS+qtRKId4/p3a3ZxDrHuFtR9VlSIRPUiJoqdeNgVQ5uR5te7XhzVSFmEj9qzRpTD2n7jxRZVTjS9yxvKsyGJDumHM=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.6,REQID:ef674451-993e-4a49-aa4a-f8f1b6f338ab,IP:0,UR L:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION:r elease,TS:0 X-CID-META: VersionHash:a9d874c,CLOUDID:9b776b02-eaf8-4c8c-94de-0bc39887e077,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:81|82|102|836|888|898,TC:-5,Content: 0|15|50,EDM:-3,IP:nil,URL:0,File:130,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: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 763480cca9c611f0b33aeb1e7f16c2b6-20251015 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1341327443; Wed, 15 Oct 2025 20:57:10 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.10; Wed, 15 Oct 2025 20:57:07 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1748.10 via Frontend Transport; Wed, 15 Oct 2025 20:57:07 +0800 From: Zhengnan Chen To: Yong Wu , Joerg Roedel , Will Deacon , Robin Murphy , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno CC: , , , , , , Zhengnan Chen Subject: [PATCH v3 5/5] iommu/mediatek: mt8189: Add MM IOMMUs support Date: Wed, 15 Oct 2025 20:55:17 +0800 Message-ID: <20251015125532.9041-6-zhengnan.chen@mediatek.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20251015125532.9041-1-zhengnan.chen@mediatek.com> References: <20251015125532.9041-1-zhengnan.chen@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Add support for mt8189 MM IOMMUs. Signed-off-by: Zhengnan Chen Reviewed-by: AngeloGioacchino Del Regno --- drivers/iommu/mtk_iommu.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 2eb62a073a58..64b641f43298 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -1771,6 +1771,33 @@ static const struct mtk_iommu_plat_data mt8189_data_infra = { .iova_region_nr = ARRAY_SIZE(single_domain), }; +static const u32 mt8189_larb_region_msk[MT8192_MULTI_REGION_NR_MAX][MTK_LARB_NR_MAX] = { + [0] = {~0, ~0, ~0, [22] = BIT(0)}, /* Region0: all ports for larb0/1/2 */ + [1] = {[3] = ~0, [4] = ~0}, /* Region1: all ports for larb4(3)/7(4) */ + [2] = {[5] = ~0, [6] = ~0, /* Region2: all ports for larb9(5)/11(6) */ + [7] = ~0, [8] = ~0, /* Region2: all ports for larb13(7)/14(8) */ + [9] = ~0, [10] = ~0, /* Region2: all ports for larb16(9)/17(10) */ + [11] = ~0, [12] = ~0, /* Region2: all ports for larb19(11)/20(12) */ + [21] = ~0}, /* Region2: larb21 fake GCE larb */ +}; + +static const struct mtk_iommu_plat_data mt8189_data_mm = { + .m4u_plat = M4U_MT8189, + .flags = HAS_BCLK | HAS_SUB_COMM_3BITS | OUT_ORDER_WR_EN | + WR_THROT_EN | IOVA_34_EN | MTK_IOMMU_TYPE_MM | + PGTABLE_PA_35_EN | DL_WITH_MULTI_LARB, + .hw_list = &m4ulist, + .inv_sel_reg = REG_MMU_INV_SEL_GEN2, + .banks_num = 5, + .banks_enable = {true, false, false, false, false}, + .iova_region = mt8192_multi_dom, + .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom), + .iova_region_larb_msk = mt8189_larb_region_msk, + .larbid_remap = {{0}, {1}, {21/* GCE_D */, 21/* GCE_M */, 2}, + {19, 20, 9, 11}, {7}, {4}, + {13, 17}, {14, 16}}, +}; + static const struct mtk_iommu_plat_data mt8192_data = { .m4u_plat = M4U_MT8192, .flags = HAS_BCLK | HAS_SUB_COMM_2BITS | OUT_ORDER_WR_EN | @@ -1874,6 +1901,7 @@ static const struct of_device_id mtk_iommu_of_ids[] = { { .compatible = "mediatek,mt8188-iommu-vpp", .data = &mt8188_data_vpp}, { .compatible = "mediatek,mt8189-iommu-apu", .data = &mt8189_data_apu}, { .compatible = "mediatek,mt8189-iommu-infra", .data = &mt8189_data_infra}, + { .compatible = "mediatek,mt8189-iommu-mm", .data = &mt8189_data_mm}, { .compatible = "mediatek,mt8192-m4u", .data = &mt8192_data}, { .compatible = "mediatek,mt8195-iommu-infra", .data = &mt8195_data_infra}, { .compatible = "mediatek,mt8195-iommu-vdo", .data = &mt8195_data_vdo}, -- 2.46.0