linux-kernel - [PATCH v6 34/34] iommu/mediatek: mt8195: Enable multi banks for infra iommu

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Date:   Thu, 7 Apr 2022 15:57:26 +0800
From:   Yong Wu <yong.wu@...iatek.com>
To:     Joerg Roedel <joro@...tes.org>, Rob Herring <robh+dt@...nel.org>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        Will Deacon <will@...nel.org>
CC:     Robin Murphy <robin.murphy@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Tomasz Figa <tfiga@...omium.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <iommu@...ts.linux-foundation.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>, <yong.wu@...iatek.com>,
        <youlin.pei@...iatek.com>, <anan.sun@...iatek.com>,
        <xueqi.zhang@...iatek.com>, <yen-chang.chen@...iatek.com>,
        "AngeloGioacchino Del Regno" 
        <angelogioacchino.delregno@...labora.com>,
        <mingyuan.ma@...iatek.com>, <yf.wang@...iatek.com>,
        <libo.kang@...iatek.com>, <chengci.xu@...iatek.com>
Subject: [PATCH v6 34/34] iommu/mediatek: mt8195: Enable multi banks for infra iommu

Enable the multi-bank functions for infra-iommu. We put PCIE in bank0
and USB in the last bank(bank4). and we don't use the other banks
currently, disable them.

Signed-off-by: Yong Wu <yong.wu@...iatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/iommu/mtk_iommu.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 027bbbced80d..22c95ed78b3c 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -1449,8 +1449,11 @@ static const struct mtk_iommu_plat_data mt8195_data_infra = {
 			    MTK_IOMMU_TYPE_INFRA | IFA_IOMMU_PCIE_SUPPORT,
 	.pericfg_comp_str = "mediatek,mt8195-pericfg_ao",
 	.inv_sel_reg      = REG_MMU_INV_SEL_GEN2,
-	.banks_num        = 1,
-	.banks_enable     = {true},
+	.banks_num	  = 5,
+	.banks_enable     = {true, false, false, false, true},
+	.banks_portmsk    = {[0] = GENMASK(19, 16),     /* PCIe */
+			     [4] = GENMASK(31, 20),     /* USB */
+			    },
 	.iova_region      = single_domain,
 	.iova_region_nr   = ARRAY_SIZE(single_domain),
 };
-- 
2.18.0