iommu/arm-smmu-v3: Parse PASID devicetree property of platform devices
For platform devices that support SubstreamID (SSID), firmware provides the number of supported SSID bits. Restrict it to what the SMMU supports and cache it into master->ssid_bits, which will also be used for PCI PASID. Reviewed-by: NEric Auger <eric.auger@redhat.com> Reviewed-by: NJonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: NJean-Philippe Brucker <jean-philippe@linaro.org> Signed-off-by: NWill Deacon <will@kernel.org>
Showing
想要评论请 注册 或 登录