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/virtio/virtio.h"
  19#include "hw/virtio/virtio-bus.h"
  20#include "hw/virtio/virtio-gpu-pci.h"
  21
  22static Property virtio_gpu_pci_base_properties[] = {
  23    DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
  24    DEFINE_PROP_END_OF_LIST(),
  25};
  26
  27static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  28{
  29    VirtIOGPUPCIBase *vgpu = VIRTIO_GPU_PCI_BASE(vpci_dev);
  30    VirtIOGPUBase *g = vgpu->vgpu;
  31    DeviceState *vdev = DEVICE(g);
  32    int i;
  33    Error *local_error = NULL;
  34
  35    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  36    virtio_pci_force_virtio_1(vpci_dev);
  37    object_property_set_bool(OBJECT(vdev), true, "realized", &local_error);
  38
  39    if (local_error) {
  40        error_propagate(errp, local_error);
  41        return;
  42    }
  43
  44    for (i = 0; i < g->conf.max_outputs; i++) {
  45        object_property_set_link(OBJECT(g->scanout[i].con),
  46                                 OBJECT(vpci_dev),
  47                                 "device", errp);
  48    }
  49}
  50
  51static void virtio_gpu_pci_base_class_init(ObjectClass *klass, void *data)
  52{
  53    DeviceClass *dc = DEVICE_CLASS(klass);
  54    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  55    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  56
  57    set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  58    dc->props = virtio_gpu_pci_base_properties;
  59    dc->hotpluggable = false;
  60    k->realize = virtio_gpu_pci_base_realize;
  61    pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
  62}
  63
  64static const TypeInfo virtio_gpu_pci_base_info = {
  65    .name = TYPE_VIRTIO_GPU_PCI_BASE,
  66    .parent = TYPE_VIRTIO_PCI,
  67    .instance_size = sizeof(VirtIOGPUPCIBase),
  68    .class_init = virtio_gpu_pci_base_class_init,
  69    .abstract = true
  70};
  71
  72#define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci"
  73#define VIRTIO_GPU_PCI(obj)                                 \
  74    OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI)
  75
  76typedef struct VirtIOGPUPCI {
  77    VirtIOGPUPCIBase parent_obj;
  78    VirtIOGPU vdev;
  79} VirtIOGPUPCI;
  80
  81static void virtio_gpu_initfn(Object *obj)
  82{
  83    VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj);
  84
  85    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  86                                TYPE_VIRTIO_GPU);
  87    VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
  88}
  89
  90static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = {
  91    .generic_name = TYPE_VIRTIO_GPU_PCI,
  92    .parent = TYPE_VIRTIO_GPU_PCI_BASE,
  93    .instance_size = sizeof(VirtIOGPUPCI),
  94    .instance_init = virtio_gpu_initfn,
  95};
  96
  97static void virtio_gpu_pci_register_types(void)
  98{
  99    type_register_static(&virtio_gpu_pci_base_info);
 100    virtio_pci_types_register(&virtio_gpu_pci_info);
 101}
 102
 103type_init(virtio_gpu_pci_register_types)
 104