In certain cooperative group dispatch scenarios the default SPI resource allocation may cause reduced per-CU workgroup occupancy. Set COMPUTE_RESOURCE_LIMITS.FORCE_SIMD_DIST=1 to mitigate soft hang scenarions. Suggested-by: Joseph Greathouse <Joseph.Greathouse@xxxxxxx> Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@xxxxxxx> --- drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c index 42d881809dc7..4b28e7dcb62f 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c @@ -303,6 +303,10 @@ static void update_mqd(struct mqd_manager *mm, void *mqd, update_cu_mask(mm, mqd, minfo, 0); set_priority(m, q); + if (KFD_GC_VERSION(mm->dev) >= IP_VERSION(9, 4, 2)) + m->compute_resource_limits = q->is_gws ? + COMPUTE_RESOURCE_LIMITS__FORCE_SIMD_DIST_MASK : 0; + q->is_active = QUEUE_IS_ACTIVE(*q); } -- 2.34.1
