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