linux-kernel - [PATCH v6 25/33] iommu/mediatek: Move geometry.aperture updating into domain

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Message-ID: <20210111111914.22211-26-yong.wu@mediatek.com>
Date:   Mon, 11 Jan 2021 19:19:06 +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>,
        Robin Murphy <robin.murphy@....com>
CC:     Krzysztof Kozlowski <krzk@...nel.org>,
        Evan Green <evgreen@...omium.org>,
        Tomasz Figa <tfiga@...gle.com>,
        <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>, <yong.wu@...iatek.com>,
        <youlin.pei@...iatek.com>, Nicolas Boichat <drinkcat@...omium.org>,
        <anan.sun@...iatek.com>, <chao.hao@...iatek.com>
Subject: [PATCH v6 25/33] iommu/mediatek: Move geometry.aperture updating into domain_finalise

Move the domain geometry.aperture updating into domain_finalise.
This is a preparing patch for updating the domain region. We know the
detailed iova region in the attach_device.

Signed-off-by: Yong Wu <yong.wu@...iatek.com>
---
 drivers/iommu/mtk_iommu.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index d321d09ac4c2..309b06d5e1f9 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -353,6 +353,10 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom,
 
 	/* Update our support page sizes bitmap */
 	dom->domain.pgsize_bitmap = dom->cfg.pgsize_bitmap;
+
+	dom->domain.geometry.aperture_start = 0;
+	dom->domain.geometry.aperture_end = DMA_BIT_MASK(32);
+	dom->domain.geometry.force_aperture = true;
 	return 0;
 }
 
@@ -372,9 +376,6 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type)
 		return NULL;
 	}
 
-	dom->domain.geometry.aperture_start = 0;
-	dom->domain.geometry.aperture_end = DMA_BIT_MASK(32);
-	dom->domain.geometry.force_aperture = true;
 	return &dom->domain;
 }
 
-- 
2.18.0