1 /* 2 * Virtio video device 3 * 4 * Copyright Red Hat 5 * 6 * Authors: 7 * Dave Airlie 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 * 12 */ 13 14 #include "qemu/osdep.h" 15 #include "qapi/error.h" 16 #include "qemu/module.h" 17 #include "hw/pci/pci.h" 18 #include "hw/qdev-properties.h" 19 #include "hw/virtio/virtio.h" 20 #include "hw/virtio/virtio-bus.h" 21 #include "hw/virtio/virtio-gpu-pci.h" 22 #include "qom/object.h" 23 24 static Property virtio_gpu_pci_base_properties[] = { 25 DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy), 26 DEFINE_PROP_END_OF_LIST(), 27 }; 28 29 static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 30 { 31 VirtIOGPUPCIBase *vgpu = VIRTIO_GPU_PCI_BASE(vpci_dev); 32 VirtIOGPUBase *g = vgpu->vgpu; 33 DeviceState *vdev = DEVICE(g); 34 int i; 35 36 if (virtio_gpu_hostmem_enabled(g->conf)) { 37 vpci_dev->msix_bar_idx = 1; 38 vpci_dev->modern_mem_bar_idx = 2; 39 memory_region_init(&g->hostmem, OBJECT(g), "virtio-gpu-hostmem", 40 g->conf.hostmem); 41 pci_register_bar(&vpci_dev->pci_dev, 4, 42 PCI_BASE_ADDRESS_SPACE_MEMORY | 43 PCI_BASE_ADDRESS_MEM_PREFETCH | 44 PCI_BASE_ADDRESS_MEM_TYPE_64, 45 &g->hostmem); 46 virtio_pci_add_shm_cap(vpci_dev, 4, 0, g->conf.hostmem, 47 VIRTIO_GPU_SHM_ID_HOST_VISIBLE); 48 } 49 50 virtio_pci_force_virtio_1(vpci_dev); 51 if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) { 52 return; 53 } 54 55 for (i = 0; i < g->conf.max_outputs; i++) { 56 object_property_set_link(OBJECT(g->scanout[i].con), "device", 57 OBJECT(vpci_dev), &error_abort); 58 } 59 } 60 61 static void virtio_gpu_pci_base_class_init(ObjectClass *klass, void *data) 62 { 63 DeviceClass *dc = DEVICE_CLASS(klass); 64 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 65 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 66 67 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 68 device_class_set_props(dc, virtio_gpu_pci_base_properties); 69 dc->hotpluggable = false; 70 k->realize = virtio_gpu_pci_base_realize; 71 pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER; 72 } 73 74 static const TypeInfo virtio_gpu_pci_base_info = { 75 .name = TYPE_VIRTIO_GPU_PCI_BASE, 76 .parent = TYPE_VIRTIO_PCI, 77 .instance_size = sizeof(VirtIOGPUPCIBase), 78 .class_init = virtio_gpu_pci_base_class_init, 79 .abstract = true 80 }; 81 module_obj(TYPE_VIRTIO_GPU_PCI_BASE); 82 module_kconfig(VIRTIO_PCI); 83 84 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci" 85 typedef struct VirtIOGPUPCI VirtIOGPUPCI; 86 DECLARE_INSTANCE_CHECKER(VirtIOGPUPCI, VIRTIO_GPU_PCI, 87 TYPE_VIRTIO_GPU_PCI) 88 89 struct VirtIOGPUPCI { 90 VirtIOGPUPCIBase parent_obj; 91 VirtIOGPU vdev; 92 }; 93 94 static void virtio_gpu_initfn(Object *obj) 95 { 96 VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj); 97 98 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 99 TYPE_VIRTIO_GPU); 100 VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev); 101 } 102 103 static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = { 104 .generic_name = TYPE_VIRTIO_GPU_PCI, 105 .parent = TYPE_VIRTIO_GPU_PCI_BASE, 106 .instance_size = sizeof(VirtIOGPUPCI), 107 .instance_init = virtio_gpu_initfn, 108 }; 109 module_obj(TYPE_VIRTIO_GPU_PCI); 110 111 static void virtio_gpu_pci_register_types(void) 112 { 113 type_register_static(&virtio_gpu_pci_base_info); 114 virtio_pci_types_register(&virtio_gpu_pci_info); 115 } 116 117 type_init(virtio_gpu_pci_register_types) 118