drm/amdkfd: Export the cwsr_size and ctl_stack_size to userspace

commit 8fc2796dea6f1210e1a01573961d5836a7ce531e upstream.

This is important for userspace to avoid hardcoding VGPR size.

Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 71776e0965f9f730af19c5f548827f2a7c91f5a8)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 82da568604b6eb1e813670700316293630f1f0c7..7203fb32989bd8feedb8dd68e6f2782947d55880 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -509,6 +509,10 @@ 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 =