[PATCH v6 11/34] iommu/mediatek: Add a flag NON_STD_AXI

From: Yong Wu <yong.wu@mediatek.com>
To: Joerg Roedel <joro@8bytes.org>, Rob Herring <robh+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Will Deacon <will@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
	Tomasz Figa <tfiga@chromium.org>,
	<linux-mediatek@lists.infradead.org>,
	<srv_heupstream@mediatek.com>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<iommu@lists.linux-foundation.org>,
	Hsin-Yi Wang <hsinyi@chromium.org>, <yong.wu@mediatek.com>,
	<youlin.pei@mediatek.com>, <anan.sun@mediatek.com>,
	<xueqi.zhang@mediatek.com>, <yen-chang.chen@mediatek.com>,
	"AngeloGioacchino Del Regno"
	<angelogioacchino.delregno@collabora.com>,
	<mingyuan.ma@mediatek.com>, <yf.wang@mediatek.com>,
	<libo.kang@mediatek.com>,  <chengci.xu@mediatek.com>
Subject: [PATCH v6 11/34] iommu/mediatek: Add a flag NON_STD_AXI
Date: Thu, 7 Apr 2022 15:57:03 +0800	[thread overview]
Message-ID: <20220407075726.17771-12-yong.wu@mediatek.com> (raw)
In-Reply-To: <20220407075726.17771-1-yong.wu@mediatek.com>

Add a new flag NON_STD_AXI, All the previous SoC support this flag.
Prepare for adding infra and apu iommu which don't support this.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/iommu/mtk_iommu.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 92f172a772d1..e7008a20ec74 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -122,6 +122,7 @@
 #define IOVA_34_EN			BIT(8)
 #define SHARE_PGTABLE			BIT(9) /* 2 HW share pgtable */
 #define DCM_DISABLE			BIT(10)
+#define NOT_STD_AXI_MODE		BIT(11)
 
 #define MTK_IOMMU_HAS_FLAG(pdata, _x) \
 		((((pdata)->flags) & (_x)) == (_x))
@@ -785,7 +786,8 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
 		regval = 0;
 	} else {
 		regval = readl_relaxed(data->base + REG_MMU_MISC_CTRL);
-		regval &= ~F_MMU_STANDARD_AXI_MODE_MASK;
+		if (MTK_IOMMU_HAS_FLAG(data->plat_data, NOT_STD_AXI_MODE))
+			regval &= ~F_MMU_STANDARD_AXI_MODE_MASK;
 		if (MTK_IOMMU_HAS_FLAG(data->plat_data, OUT_ORDER_WR_EN))
 			regval &= ~F_MMU_IN_ORDER_WR_EN_MASK;
 	}
@@ -1058,7 +1060,8 @@ static const struct dev_pm_ops mtk_iommu_pm_ops = {
 
 static const struct mtk_iommu_plat_data mt2712_data = {
 	.m4u_plat     = M4U_MT2712,
-	.flags        = HAS_4GB_MODE | HAS_BCLK | HAS_VLD_PA_RNG | SHARE_PGTABLE,
+	.flags        = HAS_4GB_MODE | HAS_BCLK | HAS_VLD_PA_RNG | SHARE_PGTABLE |
+			NOT_STD_AXI_MODE,
 	.hw_list      = &m4ulist,
 	.inv_sel_reg  = REG_MMU_INV_SEL_GEN1,
 	.iova_region  = single_domain,
@@ -1068,7 +1071,8 @@ static const struct mtk_iommu_plat_data mt2712_data = {
 
 static const struct mtk_iommu_plat_data mt6779_data = {
 	.m4u_plat      = M4U_MT6779,
-	.flags         = HAS_SUB_COMM | OUT_ORDER_WR_EN | WR_THROT_EN,
+	.flags         = HAS_SUB_COMM | OUT_ORDER_WR_EN | WR_THROT_EN |
+			 NOT_STD_AXI_MODE,
 	.inv_sel_reg   = REG_MMU_INV_SEL_GEN2,
 	.iova_region   = single_domain,
 	.iova_region_nr = ARRAY_SIZE(single_domain),
@@ -1077,7 +1081,7 @@ static const struct mtk_iommu_plat_data mt6779_data = {
 
 static const struct mtk_iommu_plat_data mt8167_data = {
 	.m4u_plat     = M4U_MT8167,
-	.flags        = RESET_AXI | HAS_LEGACY_IVRP_PADDR,
+	.flags        = RESET_AXI | HAS_LEGACY_IVRP_PADDR | NOT_STD_AXI_MODE,
 	.inv_sel_reg  = REG_MMU_INV_SEL_GEN1,
 	.iova_region  = single_domain,
 	.iova_region_nr = ARRAY_SIZE(single_domain),
@@ -1087,7 +1091,7 @@ static const struct mtk_iommu_plat_data mt8167_data = {
 static const struct mtk_iommu_plat_data mt8173_data = {
 	.m4u_plat     = M4U_MT8173,
 	.flags	      = HAS_4GB_MODE | HAS_BCLK | RESET_AXI |
-			HAS_LEGACY_IVRP_PADDR,
+			HAS_LEGACY_IVRP_PADDR | NOT_STD_AXI_MODE,
 	.inv_sel_reg  = REG_MMU_INV_SEL_GEN1,
 	.iova_region  = single_domain,
 	.iova_region_nr = ARRAY_SIZE(single_domain),
@@ -1106,7 +1110,7 @@ static const struct mtk_iommu_plat_data mt8183_data = {
 static const struct mtk_iommu_plat_data mt8192_data = {
 	.m4u_plat       = M4U_MT8192,
 	.flags          = HAS_BCLK | HAS_SUB_COMM | OUT_ORDER_WR_EN |
-			  WR_THROT_EN | IOVA_34_EN,
+			  WR_THROT_EN | IOVA_34_EN | NOT_STD_AXI_MODE,
 	.inv_sel_reg    = REG_MMU_INV_SEL_GEN2,
 	.iova_region    = mt8192_multi_dom,
 	.iova_region_nr = ARRAY_SIZE(mt8192_multi_dom),
-- 
2.18.0


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