hw/display/virtio-gpu-pci.c

   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
  23 static Property virtio_gpu_pci_base_properties[] = {
  24     DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
  25     DEFINE_PROP_END_OF_LIST(),
  26 };
  27
  28 static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  29 {
  30     VirtIOGPUPCIBase *vgpu = VIRTIO_GPU_PCI_BASE(vpci_dev);
  31     VirtIOGPUBase *g = vgpu->vgpu;
  32     DeviceState *vdev = DEVICE(g);
  33     int i;
  34     Error *local_error = NULL;
  35
  36     qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  37     virtio_pci_force_virtio_1(vpci_dev);
  38     object_property_set_bool(OBJECT(vdev), true, "realized", &local_error);
  39
  40     if (local_error) {
  41         error_propagate(errp, local_error);
  42         return;
  43     }
  44
  45     for (i = 0; i < g->conf.max_outputs; i++) {
  46         object_property_set_link(OBJECT(g->scanout[i].con),
  47                                  OBJECT(vpci_dev),
  48                                  "device", errp);
  49     }
  50 }
  51
  52 static void virtio_gpu_pci_base_class_init(ObjectClass *klass, void *data)
  53 {
  54     DeviceClass *dc = DEVICE_CLASS(klass);
  55     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  56     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  57
  58     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  59     dc->props = virtio_gpu_pci_base_properties;
  60     dc->hotpluggable = false;
  61     k->realize = virtio_gpu_pci_base_realize;
  62     pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
  63 }
  64
  65 static const TypeInfo virtio_gpu_pci_base_info = {
  66     .name = TYPE_VIRTIO_GPU_PCI_BASE,
  67     .parent = TYPE_VIRTIO_PCI,
  68     .instance_size = sizeof(VirtIOGPUPCIBase),
  69     .class_init = virtio_gpu_pci_base_class_init,
  70     .abstract = true
  71 };
  72
  73 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci"
  74 #define VIRTIO_GPU_PCI(obj)                                 \
  75     OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI)
  76
  77 typedef struct VirtIOGPUPCI {
  78     VirtIOGPUPCIBase parent_obj;
  79     VirtIOGPU vdev;
  80 } VirtIOGPUPCI;
  81
  82 static void virtio_gpu_initfn(Object *obj)
  83 {
  84     VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj);
  85
  86     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  87                                 TYPE_VIRTIO_GPU);
  88     VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
  89 }
  90
  91 static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = {
  92     .generic_name = TYPE_VIRTIO_GPU_PCI,
  93     .parent = TYPE_VIRTIO_GPU_PCI_BASE,
  94     .instance_size = sizeof(VirtIOGPUPCI),
  95     .instance_init = virtio_gpu_initfn,
  96 };
  97
  98 static void virtio_gpu_pci_register_types(void)
  99 {
 100     type_register_static(&virtio_gpu_pci_base_info);
 101     virtio_pci_types_register(&virtio_gpu_pci_info);
 102 }
 103
 104 type_init(virtio_gpu_pci_register_types)