284 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_rdoorbell()
285 		return readl(adev->doorbell.ptr + index);  in amdgpu_mm_rdoorbell()
304 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_wdoorbell()
305 		writel(v, adev->doorbell.ptr + index);  in amdgpu_mm_wdoorbell()
322 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_rdoorbell64()
323 		return atomic64_read((atomic64_t *)(adev->doorbell.ptr + index));  in amdgpu_mm_rdoorbell64()
342 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_wdoorbell64()
343 		atomic64_set((atomic64_t *)(adev->doorbell.ptr + index), v);  in amdgpu_mm_wdoorbell64()
516 		adev->doorbell.base = 0;  in amdgpu_device_doorbell_init()
517 		adev->doorbell.size = 0;  in amdgpu_device_doorbell_init()
518 		adev->doorbell.num_doorbells = 0;  in amdgpu_device_doorbell_init()
519 		adev->doorbell.ptr = NULL;  in amdgpu_device_doorbell_init()
527 	adev->doorbell.base = pci_resource_start(adev->pdev, 2);  in amdgpu_device_doorbell_init()
528 	adev->doorbell.size = pci_resource_len(adev->pdev, 2);  in amdgpu_device_doorbell_init()
530 	adev->doorbell.num_doorbells = min_t(u32, adev->doorbell.size / sizeof(u32),  in amdgpu_device_doorbell_init()
532 	if (adev->doorbell.num_doorbells == 0)  in amdgpu_device_doorbell_init()
535 	adev->doorbell.ptr = ioremap(adev->doorbell.base,  in amdgpu_device_doorbell_init()
536 				     adev->doorbell.num_doorbells *  in amdgpu_device_doorbell_init()
538 	if (adev->doorbell.ptr == NULL)  in amdgpu_device_doorbell_init()
553 	iounmap(adev->doorbell.ptr);  in amdgpu_device_doorbell_fini()
554 	adev->doorbell.ptr = NULL;  in amdgpu_device_doorbell_fini()