}
}
+static void kfd_set_iolink_non_coherent(struct kfd_topology_device *to_dev,
+ struct kfd_iolink_properties *outbound_link,
+ struct kfd_iolink_properties *inbound_link)
+{
+ /* CPU -> GPU with PCIe */
+ if (!to_dev->gpu &&
+ inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS)
+ inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
+
+ if (to_dev->gpu) {
+ /* GPU <-> GPU with PCIe and
+ * Vega20 with XGMI
+ */
+ if (inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS ||
+ (inbound_link->iolink_type == CRAT_IOLINK_TYPE_XGMI &&
+ to_dev->gpu->device_info->asic_family == CHIP_VEGA20)) {
+ outbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
+ inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
+ }
+ }
+}
+
static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev)
{
struct kfd_iolink_properties *link, *inbound_link;
inbound_link->flags = CRAT_IOLINK_FLAGS_ENABLED;
kfd_set_iolink_no_atomics(peer_dev, dev, inbound_link);
+ kfd_set_iolink_non_coherent(peer_dev, link, inbound_link);
}
}
}