324 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_rdoorbell()
325 		return readl(adev->doorbell.ptr + index);  in amdgpu_mm_rdoorbell()
344 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_wdoorbell()
345 		writel(v, adev->doorbell.ptr + index);  in amdgpu_mm_wdoorbell()
362 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_rdoorbell64()
363 		return atomic64_read((atomic64_t *)(adev->doorbell.ptr + index));  in amdgpu_mm_rdoorbell64()
382 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_wdoorbell64()
383 		atomic64_set((atomic64_t *)(adev->doorbell.ptr + index), v);  in amdgpu_mm_wdoorbell64()
594 		adev->doorbell.base = 0;  in amdgpu_device_doorbell_init()
595 		adev->doorbell.size = 0;  in amdgpu_device_doorbell_init()
596 		adev->doorbell.num_doorbells = 0;  in amdgpu_device_doorbell_init()
597 		adev->doorbell.ptr = NULL;  in amdgpu_device_doorbell_init()
607 	adev->doorbell.base = pci_resource_start(adev->pdev, 2);  in amdgpu_device_doorbell_init()
608 	adev->doorbell.size = pci_resource_len(adev->pdev, 2);  in amdgpu_device_doorbell_init()
610 	adev->doorbell.num_doorbells = min_t(u32, adev->doorbell.size / sizeof(u32),  in amdgpu_device_doorbell_init()
612 	if (adev->doorbell.num_doorbells == 0)  in amdgpu_device_doorbell_init()
622 		adev->doorbell.num_doorbells += 0x400;  in amdgpu_device_doorbell_init()
624 	adev->doorbell.ptr = ioremap(adev->doorbell.base,  in amdgpu_device_doorbell_init()
625 				     adev->doorbell.num_doorbells *  in amdgpu_device_doorbell_init()
627 	if (adev->doorbell.ptr == NULL)  in amdgpu_device_doorbell_init()
642 	iounmap(adev->doorbell.ptr);  in amdgpu_device_doorbell_fini()
643 	adev->doorbell.ptr = NULL;  in amdgpu_device_doorbell_fini()