Commit 67caf7e2 authored by Yong Wu's avatar Yong Wu Committed by Joerg Roedel
Browse files

iommu/mediatek: Delete the leaf in the tlb_flush 



In our tlb range flush, we don't care the "leaf". Remove it to simplify
the code. no functional change.

"granule" also is unnecessary for us, Keep it satisfy the format of
tlb_flush_walk.

Signed-off-by: default avatarYong Wu <yong.wu@mediatek.com>
Reviewed-by: default avatarRobin Murphy <robin.murphy@arm.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent a7a04ea3

drivers/iommu/mtk_iommu.c

+4 −17
Original line number Diff line number Diff line
@@ -174,8 +174,7 @@ static void mtk_iommu_tlb_flush_all(void *cookie) 
}



static void mtk_iommu_tlb_add_flush_nosync(unsigned long iova, size_t size,

					   size_t granule, bool leaf,

					   void *cookie)

					   size_t granule, void *cookie)

{

	struct mtk_iommu_data *data = cookie;
@@ -223,19 +222,7 @@ static void mtk_iommu_tlb_flush_walk(unsigned long iova, size_t size, 
	unsigned long flags;



	spin_lock_irqsave(&data->tlb_lock, flags);

	mtk_iommu_tlb_add_flush_nosync(iova, size, granule, false, cookie);

	mtk_iommu_tlb_sync(cookie);

	spin_unlock_irqrestore(&data->tlb_lock, flags);

}



static void mtk_iommu_tlb_flush_leaf(unsigned long iova, size_t size,

				     size_t granule, void *cookie)

{

	struct mtk_iommu_data *data = cookie;

	unsigned long flags;



	spin_lock_irqsave(&data->tlb_lock, flags);

	mtk_iommu_tlb_add_flush_nosync(iova, size, granule, true, cookie);

	mtk_iommu_tlb_add_flush_nosync(iova, size, granule, cookie);

	mtk_iommu_tlb_sync(cookie);

	spin_unlock_irqrestore(&data->tlb_lock, flags);

}
@@ -253,7 +240,7 @@ static void mtk_iommu_tlb_flush_page_nosync(struct iommu_iotlb_gather *gather, 
static const struct iommu_flush_ops mtk_iommu_flush_ops = {

	.tlb_flush_all = mtk_iommu_tlb_flush_all,

	.tlb_flush_walk = mtk_iommu_tlb_flush_walk,

	.tlb_flush_leaf = mtk_iommu_tlb_flush_leaf,

	.tlb_flush_leaf = mtk_iommu_tlb_flush_walk,

	.tlb_add_page = mtk_iommu_tlb_flush_page_nosync,

};
@@ -475,7 +462,7 @@ static void mtk_iommu_iotlb_sync(struct iommu_domain *domain, 


	spin_lock_irqsave(&data->tlb_lock, flags);

	mtk_iommu_tlb_add_flush_nosync(gather->start, length, gather->pgsize,

				       false, data);

				       data);

	mtk_iommu_tlb_sync(data);

	spin_unlock_irqrestore(&data->tlb_lock, flags);

}