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UPSTREAM: iommu/mediatek: Add iotlb_sync_map to sync whole the iova range

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Remove IO_PGTABLE_QUIRK_TLBI_ON_MAP to avoid tlb sync for each a small
chunk memory, Use the new iotlb_sync_map to tlb_sync once for whole the
iova range of iommu_map.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210107122909.16317-4-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 20143451ef)

BUG=b:174513569

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Change-Id: If0ca4c16d1ff802f914d2bbaef42282fef0f0384
This commit is contained in:
Yong Wu
2021-01-07 20:29:05 +08:00
committed by Todd Kjos
parent f098c23e59
commit 8db07d55d4
1 changed files with 9 additions and 1 deletions
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10
drivers/iommu/mtk_iommu.c
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@@ -322,7 +322,6 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom)
dom->cfg = (struct io_pgtable_cfg) {
.quirks = IO_PGTABLE_QUIRK_ARM_NS |
IO_PGTABLE_QUIRK_NO_PERMS |
IO_PGTABLE_QUIRK_TLBI_ON_MAP |
IO_PGTABLE_QUIRK_ARM_MTK_EXT,
.pgsize_bitmap = mtk_iommu_ops.pgsize_bitmap,
.ias = 32,
@@ -453,6 +452,14 @@ static void mtk_iommu_iotlb_sync(struct iommu_domain *domain,
data);
}
static void mtk_iommu_sync_map(struct iommu_domain *domain, unsigned long iova,
size_t size)
{
struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
mtk_iommu_tlb_flush_range_sync(iova, size, size, data);
}
static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain,
dma_addr_t iova)
{
@@ -539,6 +546,7 @@ static const struct iommu_ops mtk_iommu_ops = {
.unmap = mtk_iommu_unmap,
.flush_iotlb_all = mtk_iommu_flush_iotlb_all,
.iotlb_sync = mtk_iommu_iotlb_sync,
.iotlb_sync_map = mtk_iommu_sync_map,
.iova_to_phys = mtk_iommu_iova_to_phys,
.probe_device = mtk_iommu_probe_device,
.release_device = mtk_iommu_release_device,