hw/s390x/virtio-ccw-gpu.c

   1 /*
   2  * virtio ccw gpu implementation
   3  *
   4  * Copyright 2012, 2015 IBM Corp.
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2 or (at
   7  * your option) any later version. See the COPYING file in the top-level
   8  * directory.
   9  */
  10
  11 #include "qemu/osdep.h"
  12 #include "hw/qdev-properties.h"
  13 #include "hw/virtio/virtio.h"
  14 #include "qapi/error.h"
  15 #include "qemu/module.h"
  16 #include "virtio-ccw.h"
  17 #include "hw/virtio/virtio-gpu.h"
  18
  19 #define TYPE_VIRTIO_GPU_CCW "virtio-gpu-ccw"
  20 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPUCcw, VIRTIO_GPU_CCW)
  21
  22 struct VirtIOGPUCcw {
  23     VirtioCcwDevice parent_obj;
  24     VirtIOGPU vdev;
  25 };
  26
  27 static void virtio_ccw_gpu_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  28 {
  29     VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(ccw_dev);
  30     DeviceState *vdev = DEVICE(&dev->vdev);
  31
  32     qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
  33 }
  34
  35 static void virtio_ccw_gpu_instance_init(Object *obj)
  36 {
  37     VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(obj);
  38     VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
  39
  40     ccw_dev->force_revision_1 = true;
  41     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  42                                 TYPE_VIRTIO_GPU);
  43 }
  44
  45 static Property virtio_ccw_gpu_properties[] = {
  46     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  47                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  48     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  49                        VIRTIO_CCW_MAX_REV),
  50     DEFINE_PROP_END_OF_LIST(),
  51 };
  52
  53 static void virtio_ccw_gpu_class_init(ObjectClass *klass, void *data)
  54 {
  55     DeviceClass *dc = DEVICE_CLASS(klass);
  56     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  57
  58     k->realize = virtio_ccw_gpu_realize;
  59     device_class_set_props(dc, virtio_ccw_gpu_properties);
  60     dc->hotpluggable = false;
  61     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  62 }
  63
  64 static const TypeInfo virtio_ccw_gpu = {
  65     .name          = TYPE_VIRTIO_GPU_CCW,
  66     .parent        = TYPE_VIRTIO_CCW_DEVICE,
  67     .instance_size = sizeof(VirtIOGPUCcw),
  68     .instance_init = virtio_ccw_gpu_instance_init,
  69     .class_init    = virtio_ccw_gpu_class_init,
  70 };
  71 module_obj(TYPE_VIRTIO_GPU_CCW);
  72
  73 static void virtio_ccw_gpu_register(void)
  74 {
  75     if (have_virtio_ccw) {
  76         type_register_static(&virtio_ccw_gpu);
  77     }
  78 }
  79
  80 type_init(virtio_ccw_gpu_register)
  81
  82 module_arch("s390x");