diff options
Diffstat (limited to 'drivers/iommu/riscv/iommu.c')
| -rw-r--r-- | drivers/iommu/riscv/iommu.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/iommu/riscv/iommu.c b/drivers/iommu/riscv/iommu.c index 2d0d31ba2886..ebb22979075d 100644 --- a/drivers/iommu/riscv/iommu.c +++ b/drivers/iommu/riscv/iommu.c @@ -12,6 +12,8 @@ #define pr_fmt(fmt) "riscv-iommu: " fmt +#include <linux/acpi.h> +#include <linux/acpi_rimt.h> #include <linux/compiler.h> #include <linux/crash_dump.h> #include <linux/init.h> @@ -1283,7 +1285,7 @@ static phys_addr_t riscv_iommu_iova_to_phys(struct iommu_domain *iommu_domain, unsigned long *ptr; ptr = riscv_iommu_pte_fetch(domain, iova, &pte_size); - if (_io_pte_none(*ptr) || !_io_pte_present(*ptr)) + if (!ptr) return 0; return pfn_to_phys(__page_val_to_pfn(*ptr)) | (iova & (pte_size - 1)); @@ -1650,6 +1652,14 @@ int riscv_iommu_init(struct riscv_iommu_device *iommu) goto err_iodir_off; } + if (!acpi_disabled) { + rc = rimt_iommu_register(iommu->dev); + if (rc) { + dev_err_probe(iommu->dev, rc, "cannot register iommu with RIMT\n"); + goto err_remove_sysfs; + } + } + rc = iommu_device_register(&iommu->iommu, &riscv_iommu_ops, iommu->dev); if (rc) { dev_err_probe(iommu->dev, rc, "cannot register iommu interface\n"); |