amdgpu_irq_handler
irqreturn_t amdgpu_irq_handler(void *);
amdgpu_irq_handler, &adev->ddev, adev->self.dv_xname);
r = request_irq(irq, amdgpu_irq_handler, IRQF_SHARED, adev_to_drm(adev)->driver->name,