kfd_iommu_add_perf_counters 39 drivers/gpu/drm/amd/amdkfd/kfd_iommu.h int kfd_iommu_add_perf_counters(struct kfd_topology_device *kdev); kfd_iommu_add_perf_counters 913 drivers/gpu/drm/amd/amdkfd/kfd_topology.c return kfd_iommu_add_perf_counters(kdev);