linux-kernel - [PATCH v6 24/34] iommu/mediatek: Just move code position in hw

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 7 Apr 2022 15:57:16 +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 v6 24/34] iommu/mediatek: Just move code position in hw_init

No functional change too, prepare for mt8195 IOMMU support bank functions.
Some global control settings are in bank0 while the other banks have
their bank independent setting. Here only move the global control
settings and the independent registers together.

Signed-off-by: Yong Wu <yong.wu@...iatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/iommu/mtk_iommu.c | 48 +++++++++++++++++++--------------------
 1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index cb99c1d01f28..6b238ad55cbe 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -803,30 +803,6 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
 	}
 	writel_relaxed(regval, data->base + REG_MMU_CTRL_REG);
 
-	regval = F_L2_MULIT_HIT_EN |
-		F_TABLE_WALK_FAULT_INT_EN |
-		F_PREETCH_FIFO_OVERFLOW_INT_EN |
-		F_MISS_FIFO_OVERFLOW_INT_EN |
-		F_PREFETCH_FIFO_ERR_INT_EN |
-		F_MISS_FIFO_ERR_INT_EN;
-	writel_relaxed(regval, data->base + REG_MMU_INT_CONTROL0);
-
-	regval = F_INT_TRANSLATION_FAULT |
-		F_INT_MAIN_MULTI_HIT_FAULT |
-		F_INT_INVALID_PA_FAULT |
-		F_INT_ENTRY_REPLACEMENT_FAULT |
-		F_INT_TLB_MISS_FAULT |
-		F_INT_MISS_TRANSACTION_FIFO_FAULT |
-		F_INT_PRETETCH_TRANSATION_FIFO_FAULT;
-	writel_relaxed(regval, data->base + REG_MMU_INT_MAIN_CONTROL);
-
-	if (MTK_IOMMU_HAS_FLAG(data->plat_data, HAS_LEGACY_IVRP_PADDR))
-		regval = (data->protect_base >> 1) | (data->enable_4GB << 31);
-	else
-		regval = lower_32_bits(data->protect_base) |
-			 upper_32_bits(data->protect_base);
-	writel_relaxed(regval, data->base + REG_MMU_IVRP_PADDR);
-
 	if (data->enable_4GB &&
 	    MTK_IOMMU_HAS_FLAG(data->plat_data, HAS_VLD_PA_RNG)) {
 		/*
@@ -860,6 +836,30 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
 	}
 	writel_relaxed(regval, data->base + REG_MMU_MISC_CTRL);
 
+	regval = F_L2_MULIT_HIT_EN |
+		F_TABLE_WALK_FAULT_INT_EN |
+		F_PREETCH_FIFO_OVERFLOW_INT_EN |
+		F_MISS_FIFO_OVERFLOW_INT_EN |
+		F_PREFETCH_FIFO_ERR_INT_EN |
+		F_MISS_FIFO_ERR_INT_EN;
+	writel_relaxed(regval, data->base + REG_MMU_INT_CONTROL0);
+
+	regval = F_INT_TRANSLATION_FAULT |
+		F_INT_MAIN_MULTI_HIT_FAULT |
+		F_INT_INVALID_PA_FAULT |
+		F_INT_ENTRY_REPLACEMENT_FAULT |
+		F_INT_TLB_MISS_FAULT |
+		F_INT_MISS_TRANSACTION_FIFO_FAULT |
+		F_INT_PRETETCH_TRANSATION_FIFO_FAULT;
+	writel_relaxed(regval, data->base + REG_MMU_INT_MAIN_CONTROL);
+
+	if (MTK_IOMMU_HAS_FLAG(data->plat_data, HAS_LEGACY_IVRP_PADDR))
+		regval = (data->protect_base >> 1) | (data->enable_4GB << 31);
+	else
+		regval = lower_32_bits(data->protect_base) |
+			 upper_32_bits(data->protect_base);
+	writel_relaxed(regval, data->base + REG_MMU_IVRP_PADDR);
+
 	if (devm_request_irq(data->dev, data->irq, mtk_iommu_isr, 0,
 			     dev_name(data->dev), (void *)data)) {
 		writel_relaxed(0, data->base + REG_MMU_PT_BASE_ADDR);
-- 
2.18.0