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