diff options
Diffstat (limited to 'drivers/iommu/ipmmu-vmsa.c')
| -rw-r--r-- | drivers/iommu/ipmmu-vmsa.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index a003bd5fc65c..bdf1a4e5eae0 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -299,18 +299,6 @@ static void ipmmu_utlb_enable(struct ipmmu_vmsa_domain *domain, mmu->utlb_ctx[utlb] = domain->context_id; } -/* - * Disable MMU translation for the microTLB. - */ -static void ipmmu_utlb_disable(struct ipmmu_vmsa_domain *domain, - unsigned int utlb) -{ - struct ipmmu_vmsa_device *mmu = domain->mmu; - - ipmmu_imuctr_write(mmu, utlb, 0); - mmu->utlb_ctx[utlb] = IPMMU_CTX_INVALID; -} - static void ipmmu_tlb_flush_all(void *cookie) { struct ipmmu_vmsa_domain *domain = cookie; @@ -643,21 +631,6 @@ static int ipmmu_attach_device(struct iommu_domain *io_domain, return 0; } -static void ipmmu_detach_device(struct iommu_domain *io_domain, - struct device *dev) -{ - struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); - struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain); - unsigned int i; - - for (i = 0; i < fwspec->num_ids; ++i) - ipmmu_utlb_disable(domain, fwspec->ids[i]); - - /* - * TODO: Optimize by disabling the context when no device is attached. - */ -} - static int ipmmu_map(struct iommu_domain *io_domain, unsigned long iova, phys_addr_t paddr, size_t pgsize, size_t pgcount, int prot, gfp_t gfp, size_t *mapped) @@ -876,7 +849,6 @@ static const struct iommu_ops ipmmu_ops = { .of_xlate = ipmmu_of_xlate, .default_domain_ops = &(const struct iommu_domain_ops) { .attach_dev = ipmmu_attach_device, - .detach_dev = ipmmu_detach_device, .map_pages = ipmmu_map, .unmap_pages = ipmmu_unmap, .flush_iotlb_all = ipmmu_flush_iotlb_all, |