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