From 8fc2796dea6f1210e1a01573961d5836a7ce531e Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Fri, 5 Dec 2025 12:41:58 -0600 Subject: [PATCH] drm/amdkfd: Export the cwsr_size and ctl_stack_size to userspace This is important for userspace to avoid hardcoding VGPR size. Reviewed-by: Kent Russell Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher (cherry picked from commit 71776e0965f9f730af19c5f548827f2a7c91f5a8) Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index 811636af14ea..3eb32d58a120 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -491,6 +491,10 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr, dev->node_props.num_sdma_queues_per_engine); sysfs_show_32bit_prop(buffer, offs, "num_cp_queues", dev->node_props.num_cp_queues); + sysfs_show_32bit_prop(buffer, offs, "cwsr_size", + dev->node_props.cwsr_size); + sysfs_show_32bit_prop(buffer, offs, "ctl_stack_size", + dev->node_props.ctl_stack_size); if (dev->gpu) { log_max_watch_addr = -- 2.47.3