diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/acpi/arm64/iort.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 4c745a26226b..98759d6199d3 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -1218,6 +1218,17 @@ static bool iort_pci_rc_supports_ats(struct acpi_iort_node *node) return pci_rc->ats_attribute & ACPI_IORT_ATS_SUPPORTED; } +static bool iort_pci_rc_supports_canwbs(struct acpi_iort_node *node) +{ + struct acpi_iort_memory_access *memory_access; + struct acpi_iort_root_complex *pci_rc; + + pci_rc = (struct acpi_iort_root_complex *)node->node_data; + memory_access = + (struct acpi_iort_memory_access *)&pci_rc->memory_properties; + return memory_access->memory_flags & ACPI_IORT_MF_CANWBS; +} + static int iort_iommu_xlate(struct device *dev, struct acpi_iort_node *node, u32 streamid) { @@ -1335,6 +1346,8 @@ int iort_iommu_configure_id(struct device *dev, const u32 *id_in) fwspec = dev_iommu_fwspec_get(dev); if (fwspec && iort_pci_rc_supports_ats(node)) fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS; + if (fwspec && iort_pci_rc_supports_canwbs(node)) + fwspec->flags |= IOMMU_FWSPEC_PCI_RC_CANWBS; } else { node = iort_scan_node(ACPI_IORT_NODE_NAMED_COMPONENT, iort_match_node_callback, dev); @@ -1703,6 +1716,8 @@ static struct acpi_platform_list pmcg_plat_info[] __initdata = { /* HiSilicon Hip09 Platform */ {"HISI ", "HIP09 ", 0, ACPI_SIG_IORT, greater_than_or_equal, "Erratum #162001900", IORT_SMMU_V3_PMCG_HISI_HIP09}, + {"HISI ", "HIP09A ", 0, ACPI_SIG_IORT, greater_than_or_equal, + "Erratum #162001900", IORT_SMMU_V3_PMCG_HISI_HIP09}, /* HiSilicon Hip10/11 Platform uses the same SMMU IP with Hip09 */ {"HISI ", "HIP10 ", 0, ACPI_SIG_IORT, greater_than_or_equal, "Erratum #162001900", IORT_SMMU_V3_PMCG_HISI_HIP09}, |