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Date: Thu, 23 Sep 2021 19:58:13 +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 <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>, <chao.hao@...iatek.com>, <yen-chang.chen@...iatek.com> Subject: [PATCH v3 06/33] iommu/mediatek: Add 12G~16G support for multi domains In mt8192, we preassign 0-4G; 4G-8G; 8G-12G for different multimedia engines. This depends on the "dma-ranges=" in the iommu consumer's dtsi node. Adds 12G-16G region here. and reword the previous comment. we don't limit which master locate in which region. CCU still is 8G-12G. Don't change it here. Signed-off-by: Yong Wu <yong.wu@...iatek.com> --- drivers/iommu/mtk_iommu.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index ee10c56e8f96..00d9ae3dc88a 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -178,10 +178,12 @@ static const struct mtk_iommu_iova_region single_domain[] = { }; static const struct mtk_iommu_iova_region mt8192_multi_dom[] = { - { .iova_base = 0x0, .size = SZ_4G}, /* disp: 0 ~ 4G */ + { .iova_base = 0x0, .size = SZ_4G}, /* 0 ~ 4G */ #if IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT) - { .iova_base = SZ_4G, .size = SZ_4G}, /* vdec: 4G ~ 8G */ - { .iova_base = SZ_4G * 2, .size = SZ_4G}, /* CAM/MDP: 8G ~ 12G */ + { .iova_base = SZ_4G, .size = SZ_4G}, /* 4G ~ 8G */ + { .iova_base = SZ_4G * 2, .size = SZ_4G}, /* 8G ~ 12G */ + { .iova_base = SZ_4G * 3, .size = SZ_4G}, /* 12G ~ 16G */ + { .iova_base = 0x240000000ULL, .size = 0x4000000}, /* CCU0 */ { .iova_base = 0x244000000ULL, .size = 0x4000000}, /* CCU1 */ #endif -- 2.18.0
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