[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20220125085634.17972-17-yong.wu@mediatek.com>
Date: Tue, 25 Jan 2022 16:56:15 +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 v4 16/35] iommu/mediatek: Add IOMMU_TYPE flag
Add IOMMU_TYPE definition. In the mt8195, we have another IOMMU_TYPE:
infra iommu, also there will be another APU_IOMMU, thus, use 2bits for the
IOMMU_TYPE.
Signed-off-by: Yong Wu <yong.wu@...iatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
drivers/iommu/mtk_iommu.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 47d5f34f4db0..418ec0b7a43b 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -126,9 +126,17 @@
#define SHARE_PGTABLE BIT(10) /* 2 HW share pgtable */
#define DCM_DISABLE BIT(11)
#define NOT_STD_AXI_MODE BIT(12)
+/* 2 bits: iommu type */
+#define MTK_IOMMU_TYPE_MM (0x0 << 13)
+#define MTK_IOMMU_TYPE_INFRA (0x1 << 13)
+#define MTK_IOMMU_TYPE_MASK (0x3 << 13)
-#define MTK_IOMMU_HAS_FLAG(pdata, _x) \
- ((((pdata)->flags) & (_x)) == (_x))
+#define MTK_IOMMU_HAS_FLAG(pdata, _x) (!!(((pdata)->flags) & (_x)))
+
+#define MTK_IOMMU_HAS_FLAG_MASK(pdata, _x, mask) \
+ ((((pdata)->flags) & (mask)) == (_x))
+#define MTK_IOMMU_IS_TYPE(pdata, _x) MTK_IOMMU_HAS_FLAG_MASK(pdata, _x,\
+ MTK_IOMMU_TYPE_MASK)
struct mtk_iommu_domain {
struct io_pgtable_cfg cfg;
--
2.18.0
Powered by blists - more mailing lists