From 627a55ec0039a9e1aef71614016e8b2cc74a3917 Mon Sep 17 00:00:00 2001 From: Eric Huang Date: Wed, 19 Nov 2025 15:07:10 -0500 Subject: [PATCH] drm/amdkfd: assign AID to uuid in topology for SPX mode [ Upstream commit 089702632f1dd38fadc9af13816485d6aa518dbb ] XCD id is assigned to uuid, which causes some performance drop in SPX mode, assigning AID back will resolve the issue. Fixes: 3a75edf93aae ("drm/amdkfd: set uuid for each partition in topology") Signed-off-by: Eric Huang Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index 5c98746eb72df..811636af14eaa 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -530,7 +530,9 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr, sysfs_show_32bit_prop(buffer, offs, "sdma_fw_version", dev->gpu->kfd->sdma_fw_version); sysfs_show_64bit_prop(buffer, offs, "unique_id", - dev->gpu->xcp ? + dev->gpu->xcp && + (dev->gpu->xcp->xcp_mgr->mode != + AMDGPU_SPX_PARTITION_MODE) ? dev->gpu->xcp->unique_id : dev->gpu->adev->unique_id); sysfs_show_32bit_prop(buffer, offs, "num_xcc", -- 2.47.3