diff options
| author | Shameer Kolothum <[email protected]> | 2022-06-15 11:10:40 +0100 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2022-07-06 12:51:11 +0200 |
| commit | e302eea8f49717253ac64fd45b7cc719e87fa010 (patch) | |
| tree | b92a0df7c1babba47912b3cd8e128b39ee08ef02 /include/linux | |
| parent | 491cf4a6735a957cd0733365f8d17e0f4308f5a4 (diff) | |
ACPI/IORT: Add a helper to retrieve RMR info directly
This will provide a way for SMMU drivers to retrieve StreamIDs
associated with IORT RMR nodes and use that to set bypass settings
for those IDs.
Tested-by: Steven Price <[email protected]>
Tested-by: Laurentiu Tudor <[email protected]>
Tested-by: Hanjun Guo <[email protected]>
Reviewed-by: Hanjun Guo <[email protected]>
Signed-off-by: Shameer Kolothum <[email protected]>
Acked-by: Robin Murphy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/acpi_iort.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h index e5d2de9caf7f..b43be0987b19 100644 --- a/include/linux/acpi_iort.h +++ b/include/linux/acpi_iort.h @@ -33,6 +33,10 @@ struct irq_domain *iort_get_device_domain(struct device *dev, u32 id, enum irq_domain_bus_token bus_token); void acpi_configure_pmsi_domain(struct device *dev); int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id); +void iort_get_rmr_sids(struct fwnode_handle *iommu_fwnode, + struct list_head *head); +void iort_put_rmr_sids(struct fwnode_handle *iommu_fwnode, + struct list_head *head); /* IOMMU interface */ int iort_dma_get_ranges(struct device *dev, u64 *size); int iort_iommu_configure_id(struct device *dev, const u32 *id_in); @@ -46,6 +50,10 @@ static inline struct irq_domain *iort_get_device_domain( struct device *dev, u32 id, enum irq_domain_bus_token bus_token) { return NULL; } static inline void acpi_configure_pmsi_domain(struct device *dev) { } +static inline +void iort_get_rmr_sids(struct fwnode_handle *iommu_fwnode, struct list_head *head) { } +static inline +void iort_put_rmr_sids(struct fwnode_handle *iommu_fwnode, struct list_head *head) { } /* IOMMU interface */ static inline int iort_dma_get_ranges(struct device *dev, u64 *size) { return -ENODEV; } |