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From: Yong Wu <yong.wu@mediatek.com>
To: Joerg Roedel <joro@8bytes.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	 Rob Herring <robh+dt@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>
Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org,
	Nicolas Boichat <drinkcat@chromium.org>,
	srv_heupstream@mediatek.com, chao.hao@mediatek.com,
	linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>,
	Tomasz Figa <tfiga@google.com>,
	iommu@lists.linux-foundation.org,
	linux-mediatek@lists.infradead.org, ming-fan.chen@mediatek.com,
	anan.sun@mediatek.com, Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 21/23] iommu/mediatek: Adjust the structure
Date: Sat, 5 Sep 2020 16:09:18 +0800	[thread overview]
Message-ID: <20200905080920.13396-22-yong.wu@mediatek.com> (raw)
In-Reply-To: <20200905080920.13396-1-yong.wu@mediatek.com>

Add "struct mtk_iommu_data *" in the "struct mtk_iommu_domain",
reduce the call mtk_iommu_get_m4u_data().
No functional change.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/iommu/mtk_iommu.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 93ce4fa806cf..d0593d317240 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -123,6 +123,7 @@ struct mtk_iommu_domain {
 	struct io_pgtable_cfg		cfg;
 	struct io_pgtable_ops		*iop;
 
+	struct mtk_iommu_data		*data;
 	struct iommu_domain		domain;
 };
 
@@ -348,7 +349,7 @@ static void mtk_iommu_config(struct mtk_iommu_data *data,
 
 static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom)
 {
-	struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
+	struct mtk_iommu_data *data = dom->data;
 
 	/* Use the exist domain as there is only one m4u pgtable here. */
 	if (data->m4u_dom) {
@@ -397,6 +398,7 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type)
 	if (iommu_get_dma_cookie(&dom->domain))
 		goto  free_dom;
 
+	dom->data = data;
 	if (mtk_iommu_domain_finalise(dom))
 		goto  put_dma_cookie;
 
@@ -469,10 +471,9 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova,
 			 phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
 {
 	struct mtk_iommu_domain *dom = to_mtk_domain(domain);
-	struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
 
 	/* The "4GB mode" M4U physically can not use the lower remap of Dram. */
-	if (data->enable_4GB)
+	if (dom->data->enable_4GB)
 		paddr |= BIT_ULL(32);
 
 	/* Synchronize with the tlb_lock */
@@ -490,31 +491,32 @@ static size_t mtk_iommu_unmap(struct iommu_domain *domain,
 
 static void mtk_iommu_flush_iotlb_all(struct iommu_domain *domain)
 {
-	mtk_iommu_tlb_flush_all(mtk_iommu_get_m4u_data());
+	struct mtk_iommu_domain *dom = to_mtk_domain(domain);
+
+	mtk_iommu_tlb_flush_all(dom->data);
 }
 
 static void mtk_iommu_iotlb_sync(struct iommu_domain *domain,
 				 struct iommu_iotlb_gather *gather)
 {
-	struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
+	struct mtk_iommu_domain *dom = to_mtk_domain(domain);
 	size_t length = gather->end - gather->start;
 
 	if (gather->start == ULONG_MAX)
 		return;
 
 	mtk_iommu_tlb_flush_range_sync(gather->start, length, gather->pgsize,
-				       data);
+				       dom->data);
 }
 
 static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain,
 					  dma_addr_t iova)
 {
 	struct mtk_iommu_domain *dom = to_mtk_domain(domain);
-	struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
 	phys_addr_t pa;
 
 	pa = dom->iop->iova_to_phys(dom->iop, iova);
-	if (data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE)
+	if (dom->data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE)
 		pa &= ~BIT_ULL(32);
 
 	return pa;
-- 
2.18.0
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  parent reply	other threads:[~2020-09-05  8:14 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-05  8:08 [PATCH v2 00/23] MT8192 IOMMU support Yong Wu
2020-09-05  8:08 ` [PATCH v2 01/23] dt-bindings: iommu: mediatek: Convert IOMMU to DT schema Yong Wu
2020-09-14 23:22   ` Rob Herring
2020-09-15  5:49     ` Yong Wu
2020-09-18 16:07       ` Rob Herring
2020-09-05  8:08 ` [PATCH v2 02/23] dt-bindings: memory: mediatek: Convert SMI " Yong Wu
2020-09-14 23:23   ` Rob Herring
2020-09-15  5:55     ` Yong Wu
2020-09-05  8:09 ` [PATCH v2 03/23] dt-bindings: memory: mediatek: Add a common larb-port header file Yong Wu
2020-09-05  8:09 ` [PATCH v2 04/23] dt-bindings: memory: mediatek: Extend LARB_NR_MAX to 32 Yong Wu
2020-09-05  8:09 ` [PATCH v2 05/23] dt-bindings: memory: mediatek: Add domain definition Yong Wu
2020-09-05  8:09 ` [PATCH v2 06/23] dt-bindings: mediatek: Add binding for mt8192 IOMMU and SMI Yong Wu
2020-09-15  0:42   ` Rob Herring
2020-09-05  8:09 ` [PATCH v2 07/23] iommu/mediatek: Use the common mtk-smi-larb-port.h Yong Wu
2020-09-05  8:09 ` [PATCH v2 08/23] iommu/io-pgtable-arm-v7s: Use ias to check the valid iova in unmap Yong Wu
2020-09-05  8:09 ` [PATCH v2 09/23] iommu/io-pgtable-arm-v7s: Extend PA34 for MediaTek Yong Wu
2020-09-05  8:09 ` [PATCH v2 10/23] iommu/io-pgtable-arm-v7s: Add cfg as a param in some macros Yong Wu
2020-09-05  8:09 ` [PATCH v2 11/23] iommu/io-pgtable-arm-v7s: Quad lvl1 pgtable for MediaTek Yong Wu
2020-09-05  8:09 ` [PATCH v2 12/23] iommu/mediatek: Move hw_init into attach_device Yong Wu
2020-09-05  8:09 ` [PATCH v2 13/23] iommu/mediatek: Add device link for smi-common and m4u Yong Wu
2020-09-05  8:09 ` [PATCH v2 14/23] iommu/mediatek: Add power-domain operation Yong Wu
2020-09-05  8:09 ` [PATCH v2 15/23] iommu/mediatek: Add iova reserved function Yong Wu
2020-09-05  8:09 ` [PATCH v2 16/23] iommu/mediatek: Add single domain Yong Wu
2020-09-05  8:09 ` [PATCH v2 17/23] iommu/mediatek: Support master use iova over 32bit Yong Wu
2020-09-05  8:09 ` [PATCH v2 18/23] iommu/mediatek: Support up to 34bit iova in tlb flush Yong Wu
2020-09-05  8:09 ` [PATCH v2 19/23] iommu/mediatek: Support report iova 34bit translation fault in ISR Yong Wu
2020-09-05  8:09 ` [PATCH v2 20/23] iommu/mediatek: Add support for multi domain Yong Wu
2020-09-05  8:09 ` Yong Wu [this message]
2020-09-05  8:09 ` [PATCH v2 22/23] iommu/mediatek: Add mt8192 support Yong Wu
2020-09-05  8:09 ` [PATCH v2 23/23] memory: mtk-smi: " Yong Wu

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