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
  23static Property virtio_gpu_pci_base_properties[] = {
  24    DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
  25    DEFINE_PROP_END_OF_LIST(),
  26};
  27
  28static 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
  52static 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
  65static 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
  77typedef struct VirtIOGPUPCI {
  78    VirtIOGPUPCIBase parent_obj;
  79    VirtIOGPU vdev;
  80} VirtIOGPUPCI;
  81
  82static 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
  91static 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
  98static 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
 104type_init(virtio_gpu_pci_register_types)
 105