linux-kernel - [PATCH] iommu/mediatek: Add PGTABLE_PA_35

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Message-ID: <20241017112036.368772-1-konrada@google.com>
Date: Thu, 17 Oct 2024 11:20:36 +0000
From: Konrad Adamczyk <konrada@...gle.com>
To: Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>, 
	Robin Murphy <robin.murphy@....com>, Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, iommu@...ts.linux.dev, 
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org
Cc: Wojciech Macek <wmacek@...gle.com>, Konrad Adamczyk <konrada@...gle.com>
Subject: [PATCH] iommu/mediatek: Add PGTABLE_PA_35_EN to mt8186 platform data

The MT8186 chip supports 35-bit physical addresses in page table [1].
Set this platform flag.

[1] MT8186G_Application Processor Functional Specification_v1.0

Signed-off-by: Konrad Adamczyk <konrada@...gle.com>
---
 drivers/iommu/mtk_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 6a2707fe7a78..c45313c43b9e 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -1599,7 +1599,7 @@ static const unsigned int mt8186_larb_region_msk[MT8192_MULTI_REGION_NR_MAX][MTK
 static const struct mtk_iommu_plat_data mt8186_data_mm = {
 	.m4u_plat       = M4U_MT8186,
 	.flags          = HAS_BCLK | HAS_SUB_COMM_2BITS | OUT_ORDER_WR_EN |
-			  WR_THROT_EN | IOVA_34_EN | MTK_IOMMU_TYPE_MM,
+			  WR_THROT_EN | IOVA_34_EN | MTK_IOMMU_TYPE_MM | PGTABLE_PA_35_EN,
 	.larbid_remap   = {{0}, {1, MTK_INVALID_LARBID, 8}, {4}, {7}, {2}, {9, 11, 19, 20},
 			   {MTK_INVALID_LARBID, 14, 16},
 			   {MTK_INVALID_LARBID, 13, MTK_INVALID_LARBID, 17}},
-- 
2.47.0.105.g07ac214952-goog