Symbol: atomic64_xchg
sys/dev/pci/drm/amd/amdgpu/amdgpu_vm.c
1766
if (atomic64_xchg(&vm->kfd_last_flushed_seq, tlb_seq) == tlb_seq)
sys/dev/pci/drm/include/linux/atomic.h
235
#define atomic_long_xchg(v, n) atomic64_xchg(v, n)
sys/dev/pci/drm/radeon/radeon_fence.c
251
} while (atomic64_xchg(&rdev->fence_drv[ring].last_seq, seq) > seq);