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drm/amdkfd: Set iolink non-coherent in topology
Fix non-coherent bit of iolink properties flag which always is 0. Signed-off-by: Eric Huang <jinhuieric.huang@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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1 changed files with 23 additions and 0 deletions
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@ -1222,6 +1222,28 @@ static void kfd_set_iolink_no_atomics(struct kfd_topology_device *dev,
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}
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}
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static void kfd_set_iolink_non_coherent(struct kfd_topology_device *to_dev,
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struct kfd_iolink_properties *outbound_link,
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struct kfd_iolink_properties *inbound_link)
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{
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/* CPU -> GPU with PCIe */
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if (!to_dev->gpu &&
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inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS)
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inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
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if (to_dev->gpu) {
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/* GPU <-> GPU with PCIe and
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* Vega20 with XGMI
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*/
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if (inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS ||
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(inbound_link->iolink_type == CRAT_IOLINK_TYPE_XGMI &&
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to_dev->gpu->device_info->asic_family == CHIP_VEGA20)) {
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outbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
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inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
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}
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}
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}
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static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev)
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{
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struct kfd_iolink_properties *link, *inbound_link;
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@ -1247,6 +1269,7 @@ static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev)
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inbound_link->flags = CRAT_IOLINK_FLAGS_ENABLED;
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kfd_set_iolink_no_atomics(peer_dev, dev, inbound_link);
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kfd_set_iolink_non_coherent(peer_dev, link, inbound_link);
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}
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}
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}
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