Re: [PATCH v4] iommu/arm-smmu: Support for Extended Stream ID (16 bit)

2017-01-19 Thread Will Deacon
On Thu, Jan 19, 2017 at 05:36:36PM +0300, Aleksey Makarov wrote: > It is the time we have the real 16-bit Stream ID user, which is the > ThunderX. Its IO topology uses 1:1 map for Requester ID to Stream ID > translation for each root complex which allows to get full 16-bit > Stream ID. Firmware as

[PATCH v4] iommu/arm-smmu: Support for Extended Stream ID (16 bit)

2017-01-19 Thread Aleksey Makarov
It is the time we have the real 16-bit Stream ID user, which is the ThunderX. Its IO topology uses 1:1 map for Requester ID to Stream ID translation for each root complex which allows to get full 16-bit Stream ID. Firmware assigns bus IDs that are greater than 128 (0x80) to some buses under PEM (e