Am 2020-05-21 um 10:42 a.m. schrieb Philip Yang: > In free memory of gpu path, remove bo from validate_list to make sure > restore worker don't access the BO any more, then unregister bo MMU > interval notifier. Otherwise, the restore worker will crash in the > middle of validating BO user pages if MMU interval notifer is gone. > > Signed-off-by: Philip Yang <Philip.Yang@xxxxxxx> Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > index da8b31a53291..68e6e1bc8f3a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > @@ -1302,15 +1302,15 @@ int amdgpu_amdkfd_gpuvm_free_memory_of_gpu( > return -EBUSY; > } > > - /* No more MMU notifiers */ > - amdgpu_mn_unregister(mem->bo); > - > /* Make sure restore workers don't access the BO any more */ > bo_list_entry = &mem->validate_list; > mutex_lock(&process_info->lock); > list_del(&bo_list_entry->head); > mutex_unlock(&process_info->lock); > > + /* No more MMU notifiers */ > + amdgpu_mn_unregister(mem->bo); > + > ret = reserve_bo_and_cond_vms(mem, NULL, BO_VM_ALL, &ctx); > if (unlikely(ret)) > return ret; _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
