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authorRalf Goebel <ralf.goebel@imago-technologies.com>2018-08-06 18:00:36 +0300
committerJoerg Roedel <jroedel@suse.de>2018-08-08 12:08:09 +0300
commit04c532a1cdc7e423656c07937aa4b5c1c2b064f9 (patch)
treef597dae2d4d02140fdfabcd3ee1b9a591b596f96 /drivers/iommu/omap-iommu.c
parent1ffaddd029c867d134a1dde39f540dcc8c52e274 (diff)
downloadlinux-04c532a1cdc7e423656c07937aa4b5c1c2b064f9.tar.xz
iommu/omap: Fix cache flushes on L2 table entries
The base address used for DMA operations on the second-level table did incorrectly include the offset for the table entry. The offset was then added again which lead to incorrect behavior. Operations on the L1 table are not affected. The calculation of the base address is changed to point to the beginning of the L2 table. Fixes: bfee0cf0ee1d ("iommu/omap: Use DMA-API for performing cache flushes") Acked-by: Suman Anna <s-anna@ti.com> Signed-off-by: Ralf Goebel <ralf.goebel@imago-technologies.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/omap-iommu.c')
-rw-r--r--drivers/iommu/omap-iommu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index af4a8e7fcd27..3b05117118c3 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -550,7 +550,7 @@ static u32 *iopte_alloc(struct omap_iommu *obj, u32 *iopgd,
pte_ready:
iopte = iopte_offset(iopgd, da);
- *pt_dma = virt_to_phys(iopte);
+ *pt_dma = iopgd_page_paddr(iopgd);
dev_vdbg(obj->dev,
"%s: da:%08x pgd:%p *pgd:%08x pte:%p *pte:%08x\n",
__func__, da, iopgd, *iopgd, iopte, *iopte);
@@ -738,7 +738,7 @@ static size_t iopgtable_clear_entry_core(struct omap_iommu *obj, u32 da)
}
bytes *= nent;
memset(iopte, 0, nent * sizeof(*iopte));
- pt_dma = virt_to_phys(iopte);
+ pt_dma = iopgd_page_paddr(iopgd);
flush_iopte_range(obj->dev, pt_dma, pt_offset, nent);
/*