linux-kernel - [PATCH v2 03/19] iommu/mediatek: Extend larb_remap to larb

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Message-ID: <20200105104523.31006-4-chao.hao@mediatek.com>
Date:   Sun, 5 Jan 2020 18:45:07 +0800
From:   Chao Hao <chao.hao@...iatek.com>
To:     Joerg Roedel <joro@...tes.org>, Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     <iommu@...ts.linux-foundation.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <wsd_upstream@...iatek.com>,
        Chao Hao <chao.hao@...iatek.com>,
        Jun Yan <jun.yan@...iatek.com>,
        Cui Zhang <zhang.cui@...iatek.com>,
        Yong Wu <yong.wu@...iatek.com>,
        Anan Sun <anan.sun@...iatek.com>
Subject: [PATCH v2 03/19] iommu/mediatek: Extend larb_remap to larb_remap[2]

For more than one IOMMUs, they are corresponding to different
smi_larb id, so we need to extend larb_remap to larb_remap[2]
to distinguish it by index.

Signed-off-by: Chao Hao <chao.hao@...iatek.com>
---
 drivers/iommu/mtk_iommu.c | 8 ++++----
 drivers/iommu/mtk_iommu.h | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 09192edef1f7..f2d953fc09df 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -245,7 +245,7 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id)
 	fault_larb = F_MMU_INT_ID_LARB_ID(regval);
 	fault_port = F_MMU_INT_ID_PORT_ID(regval);
 
-	fault_larb = data->plat_data->larbid_remap[fault_larb];
+	fault_larb = data->plat_data->larbid_remap[data->m4u_id][fault_larb];
 
 	if (report_iommu_fault(&dom->domain, data->dev, fault_iova,
 			       write ? IOMMU_FAULT_WRITE : IOMMU_FAULT_READ)) {
@@ -782,7 +782,7 @@ static const struct mtk_iommu_plat_data mt2712_data = {
 	.has_4gb_mode = true,
 	.has_bclk     = true,
 	.has_vld_pa_rng   = true,
-	.larbid_remap = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
+	.larbid_remap[0] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
 };
 
 static const struct mtk_iommu_plat_data mt8173_data = {
@@ -790,13 +790,13 @@ static const struct mtk_iommu_plat_data mt8173_data = {
 	.has_4gb_mode = true,
 	.has_bclk     = true,
 	.reset_axi    = true,
-	.larbid_remap = {0, 1, 2, 3, 4, 5}, /* Linear mapping. */
+	.larbid_remap[0] = {0, 1, 2, 3, 4, 5}, /* Linear mapping. */
 };
 
 static const struct mtk_iommu_plat_data mt8183_data = {
 	.m4u_plat     = M4U_MT8183,
 	.reset_axi    = true,
-	.larbid_remap = {0, 4, 5, 6, 7, 2, 3, 1},
+	.larbid_remap[0] = {0, 4, 5, 6, 7, 2, 3, 1},
 };
 
 static const struct of_device_id mtk_iommu_of_ids[] = {
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index b4bd76548615..c585811a957c 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -43,7 +43,7 @@ struct mtk_iommu_plat_data {
 	bool                has_vld_pa_rng;
 	bool                reset_axi;
 	u32                 m4u1_mask;
-	unsigned char       larbid_remap[MTK_LARB_NR_MAX];
+	unsigned char       larbid_remap[2][MTK_LARB_NR_MAX];
 };
 
 struct mtk_iommu_domain;
-- 
2.18.0