diff options
| -rw-r--r-- | drivers/acpi/arm64/iort.c | 59 | ||||
| -rw-r--r-- | drivers/acpi/scan.c | 8 | ||||
| -rw-r--r-- | include/acpi/acpi_bus.h | 9 | ||||
| -rw-r--r-- | include/linux/acpi.h | 7 | ||||
| -rw-r--r-- | include/linux/acpi_iort.h | 7 |
5 files changed, 67 insertions, 23 deletions
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 421c6976ab81..ec782e4a0fe4 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -978,19 +978,54 @@ static void iort_named_component_init(struct device *dev, nc->node_flags); } +static int iort_nc_iommu_map(struct device *dev, struct acpi_iort_node *node) +{ + struct acpi_iort_node *parent; + int err = -ENODEV, i = 0; + u32 streamid = 0; + + do { + + parent = iort_node_map_platform_id(node, &streamid, + IORT_IOMMU_TYPE, + i++); + + if (parent) + err = iort_iommu_xlate(dev, parent, streamid); + } while (parent && !err); + + return err; +} + +static int iort_nc_iommu_map_id(struct device *dev, + struct acpi_iort_node *node, + const u32 *in_id) +{ + struct acpi_iort_node *parent; + u32 streamid; + + parent = iort_node_map_id(node, *in_id, &streamid, IORT_IOMMU_TYPE); + if (parent) + return iort_iommu_xlate(dev, parent, streamid); + + return -ENODEV; +} + + /** - * iort_iommu_configure - Set-up IOMMU configuration for a device. + * iort_iommu_configure_id - Set-up IOMMU configuration for a device. * * @dev: device to configure + * @id_in: optional input id const value pointer * * Returns: iommu_ops pointer on configuration success * NULL on configuration failure */ -const struct iommu_ops *iort_iommu_configure(struct device *dev) +const struct iommu_ops *iort_iommu_configure_id(struct device *dev, + const u32 *id_in) { - struct acpi_iort_node *node, *parent; + struct acpi_iort_node *node; const struct iommu_ops *ops; - u32 streamid = 0; int err = -ENODEV; /* @@ -1019,21 +1054,13 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev) if (fwspec && iort_pci_rc_supports_ats(node)) fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS; } else { - int i = 0; - node = iort_scan_node(ACPI_IORT_NODE_NAMED_COMPONENT, iort_match_node_callback, dev); if (!node) return NULL; - do { - parent = iort_node_map_platform_id(node, &streamid, - IORT_IOMMU_TYPE, - i++); - - if (parent) - err = iort_iommu_xlate(dev, parent, streamid); - } while (parent && !err); + err = id_in ? iort_nc_iommu_map_id(dev, node, id_in) : + iort_nc_iommu_map(dev, node); if (!err) iort_named_component_init(dev, node); @@ -1058,6 +1085,7 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev) return ops; } + #else static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev) { return NULL; } @@ -1066,7 +1094,8 @@ static inline int iort_add_device_replay(const struct iommu_ops *ops, { return 0; } int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) { return 0; } -const struct iommu_ops *iort_iommu_configure(struct device *dev) +const struct iommu_ops *iort_iommu_configure_id(struct device *dev, + const u32 *input_id) { return NULL; } #endif diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 8777faced51a..2142f1554761 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1457,8 +1457,10 @@ int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset, * acpi_dma_configure - Set-up DMA configuration for the device. * @dev: The pointer to the device * @attr: device dma attributes + * @input_id: input device id const value pointer */ -int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr) +int acpi_dma_configure_id(struct device *dev, enum dev_dma_attr attr, + const u32 *input_id) { const struct iommu_ops *iommu; u64 dma_addr = 0, size = 0; @@ -1470,7 +1472,7 @@ int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr) iort_dma_setup(dev, &dma_addr, &size); - iommu = iort_iommu_configure(dev); + iommu = iort_iommu_configure_id(dev, input_id); if (PTR_ERR(iommu) == -EPROBE_DEFER) return -EPROBE_DEFER; @@ -1479,7 +1481,7 @@ int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr) return 0; } -EXPORT_SYMBOL_GPL(acpi_dma_configure); +EXPORT_SYMBOL_GPL(acpi_dma_configure_id); static void acpi_init_coherency(struct acpi_device *adev) { diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 5afb6ceb284f..a3abcc4b7d9f 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -588,8 +588,13 @@ bool acpi_dma_supported(struct acpi_device *adev); enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev); int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset, u64 *size); -int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr); - +int acpi_dma_configure_id(struct device *dev, enum dev_dma_attr attr, + const u32 *input_id); +static inline int acpi_dma_configure(struct device *dev, + enum dev_dma_attr attr) +{ + return acpi_dma_configure_id(dev, attr, NULL); +} struct acpi_device *acpi_find_child_device(struct acpi_device *parent, u64 address, bool check_children); int acpi_is_root_bridge(acpi_handle); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d661cd0ee64d..6d2c47489d90 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -905,6 +905,13 @@ static inline int acpi_dma_configure(struct device *dev, return 0; } +static inline int acpi_dma_configure_id(struct device *dev, + enum dev_dma_attr attr, + const u32 *input_id) +{ + return 0; +} + #define ACPI_PTR(_ptr) (NULL) static inline void acpi_device_set_enumerated(struct acpi_device *adev) diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h index e51425e083da..20a32120bb88 100644 --- a/include/linux/acpi_iort.h +++ b/include/linux/acpi_iort.h @@ -35,7 +35,8 @@ void acpi_configure_pmsi_domain(struct device *dev); int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id); /* IOMMU interface */ void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size); -const struct iommu_ops *iort_iommu_configure(struct device *dev); +const struct iommu_ops *iort_iommu_configure_id(struct device *dev, + const u32 *id_in); int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head); #else static inline void acpi_iort_init(void) { } @@ -48,8 +49,8 @@ static inline void acpi_configure_pmsi_domain(struct device *dev) { } /* IOMMU interface */ static inline void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size) { } -static inline const struct iommu_ops *iort_iommu_configure( - struct device *dev) +static inline const struct iommu_ops *iort_iommu_configure_id( + struct device *dev, const u32 *id_in) { return NULL; } static inline int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) |