On 2016/11/21 18:01, Lorenzo Pieralisi wrote:
The current IORT id mapping API requires components to provide an input requester ID (a Bus-Device-Function (BDF) identifier for PCI devices) to translate an input identifier to an output identifier through an IORT range mapping. Named components do not have an identifiable source ID therefore their respective input/output mapping can only be defined in IORT tables through single mappings, that provide a translation that does not require any input identifier. Current IORT interface for requester id mappings (iort_node_map_rid()) is not suitable for components that do not provide a requester id, so it cannot be used for IORT named components. Add an interface to the IORT API to enable retrieval of id by allowing an indexed walk of the single mappings array for a given component, therefore completing the IORT mapping API. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> Reviewed-by: Tomasz Nowicki <tn@xxxxxxxxxxxx> Tested-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx> Tested-by: Tomasz Nowicki <tn@xxxxxxxxxxxx> Cc: Hanjun Guo <hanjun.guo@xxxxxxxxxx> Cc: Tomasz Nowicki <tn@xxxxxxxxxxxx> Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx> --- drivers/acpi/arm64/iort.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+)
Acked-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx> Thanks Hanjun -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
