iommu/arm-smmu: Remove arm_smmu_flush_pgtable()

With the io-pgtable code now enforcing its own appropriate sync points,
the vestigial flush_pgtable callback becomes entirely redundant, so
remove it altogether.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 54c68d123a6d7a4cd94274ff796cb511427c5971..dafaf59dc3b82833fb78d55e8f194ff728999d35 100644 (file)
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -1331,20 +1331,10 @@ static void arm_smmu_tlb_inv_range_nosync(unsigned long iova, size_t size,
        arm_smmu_cmdq_issue_cmd(smmu, &cmd);
 }
 
-static void arm_smmu_flush_pgtable(void *addr, size_t size, void *cookie)
-{
-       struct arm_smmu_domain *smmu_domain = cookie;
-
-       /* The page table code handles flushing in the non-coherent case */
-       if (smmu_domain->smmu->features & ARM_SMMU_FEAT_COHERENCY)
-               dsb(ishst);
-}
-
 static struct iommu_gather_ops arm_smmu_gather_ops = {
        .tlb_flush_all  = arm_smmu_tlb_inv_context,
        .tlb_add_flush  = arm_smmu_tlb_inv_range_nosync,
        .tlb_sync       = arm_smmu_tlb_sync,
-       .flush_pgtable  = arm_smmu_flush_pgtable,
 };
 
 /* IOMMU API */