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     Error *local_error = NULL;
  35
  36     virtio_pci_force_virtio_1(vpci_dev);
  37     if (!qdev_realize(vdev, BUS(&vpci_dev->bus), &local_error)) {
  38         error_propagate(errp, local_error);
  39         return;
  40     }
  41
  42     for (i = 0; i < g->conf.max_outputs; i++) {
  43         object_property_set_link(OBJECT(g->scanout[i].con), "device",
  44                                  OBJECT(vpci_dev), &error_abort);
  45     }
  46 }
  47
  48 static void virtio_gpu_pci_base_class_init(ObjectClass *klass, void *data)
  49 {
  50     DeviceClass *dc = DEVICE_CLASS(klass);
  51     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  52     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  53
  54     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  55     device_class_set_props(dc, virtio_gpu_pci_base_properties);
  56     dc->hotpluggable = false;
  57     k->realize = virtio_gpu_pci_base_realize;
  58     pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
  59 }
  60
  61 static const TypeInfo virtio_gpu_pci_base_info = {
  62     .name = TYPE_VIRTIO_GPU_PCI_BASE,
  63     .parent = TYPE_VIRTIO_PCI,
  64     .instance_size = sizeof(VirtIOGPUPCIBase),
  65     .class_init = virtio_gpu_pci_base_class_init,
  66     .abstract = true
  67 };
  68
  69 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci"
  70 #define VIRTIO_GPU_PCI(obj)                                 \
  71     OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI)
  72
  73 typedef struct VirtIOGPUPCI {
  74     VirtIOGPUPCIBase parent_obj;
  75     VirtIOGPU vdev;
  76 } VirtIOGPUPCI;
  77
  78 static 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     VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
  85 }
  86
  87 static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = {
  88     .generic_name = TYPE_VIRTIO_GPU_PCI,
  89     .parent = TYPE_VIRTIO_GPU_PCI_BASE,
  90     .instance_size = sizeof(VirtIOGPUPCI),
  91     .instance_init = virtio_gpu_initfn,
  92 };
  93
  94 static void virtio_gpu_pci_register_types(void)
  95 {
  96     type_register_static(&virtio_gpu_pci_base_info);
  97     virtio_pci_types_register(&virtio_gpu_pci_info);
  98 }
  99
 100 type_init(virtio_gpu_pci_register_types)