141 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_rdoorbell()
142 		return readl(adev->doorbell.ptr + index);  in amdgpu_mm_rdoorbell()
161 	if (index < adev->doorbell.num_doorbells) {  in amdgpu_mm_wdoorbell()
162 		writel(v, adev->doorbell.ptr + index);  in amdgpu_mm_wdoorbell()
345 	adev->doorbell.base = pci_resource_start(adev->pdev, 2);  in amdgpu_doorbell_init()
346 	adev->doorbell.size = pci_resource_len(adev->pdev, 2);  in amdgpu_doorbell_init()
348 	adev->doorbell.num_doorbells = min_t(u32, adev->doorbell.size / sizeof(u32),   in amdgpu_doorbell_init()
350 	if (adev->doorbell.num_doorbells == 0)  in amdgpu_doorbell_init()
353 	adev->doorbell.ptr = ioremap(adev->doorbell.base, adev->doorbell.num_doorbells * sizeof(u32));  in amdgpu_doorbell_init()
354 	if (adev->doorbell.ptr == NULL) {  in amdgpu_doorbell_init()
357 	DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)adev->doorbell.base);  in amdgpu_doorbell_init()
358 	DRM_INFO("doorbell mmio size: %u\n", (unsigned)adev->doorbell.size);  in amdgpu_doorbell_init()
372 	iounmap(adev->doorbell.ptr);  in amdgpu_doorbell_fini()
373 	adev->doorbell.ptr = NULL;  in amdgpu_doorbell_fini()
398 	if (adev->doorbell.size > adev->doorbell.num_doorbells * sizeof(u32)) {  in amdgpu_doorbell_get_kfd_info()
399 		*aperture_base = adev->doorbell.base;  in amdgpu_doorbell_get_kfd_info()
400 		*aperture_size = adev->doorbell.size;  in amdgpu_doorbell_get_kfd_info()
401 		*start_offset = adev->doorbell.num_doorbells * sizeof(u32);  in amdgpu_doorbell_get_kfd_info()