172 lines
4.6 KiB
C
172 lines
4.6 KiB
C
/*
|
|
* Virtio GPU Device
|
|
*
|
|
* Copyright Red Hat, Inc. 2013-2014
|
|
*
|
|
* Authors:
|
|
* Dave Airlie <airlied@redhat.com>
|
|
* Gerd Hoffmann <kraxel@redhat.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu/iov.h"
|
|
#include "qemu/module.h"
|
|
#include "qemu/error-report.h"
|
|
#include "qapi/error.h"
|
|
#include "sysemu/sysemu.h"
|
|
#include "hw/virtio/virtio.h"
|
|
#include "hw/virtio/virtio-gpu.h"
|
|
#include "hw/virtio/virtio-gpu-bswap.h"
|
|
#include "hw/virtio/virtio-gpu-pixman.h"
|
|
#include "hw/qdev-properties.h"
|
|
|
|
#include <virglrenderer.h>
|
|
|
|
static void virtio_gpu_gl_update_cursor_data(VirtIOGPU *g,
|
|
struct virtio_gpu_scanout *s,
|
|
uint32_t resource_id)
|
|
{
|
|
uint32_t width, height;
|
|
uint32_t pixels, *data;
|
|
|
|
data = virgl_renderer_get_cursor_data(resource_id, &width, &height);
|
|
if (!data) {
|
|
return;
|
|
}
|
|
|
|
if (width != s->current_cursor->width ||
|
|
height != s->current_cursor->height) {
|
|
free(data);
|
|
return;
|
|
}
|
|
|
|
pixels = s->current_cursor->width * s->current_cursor->height;
|
|
memcpy(s->current_cursor->data, data, pixels * sizeof(uint32_t));
|
|
free(data);
|
|
}
|
|
|
|
static void virtio_gpu_gl_flushed(VirtIOGPUBase *b)
|
|
{
|
|
VirtIOGPU *g = VIRTIO_GPU(b);
|
|
|
|
virtio_gpu_process_cmdq(g);
|
|
}
|
|
|
|
static void virtio_gpu_gl_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
|
|
{
|
|
VirtIOGPU *g = VIRTIO_GPU(vdev);
|
|
VirtIOGPUGL *gl = VIRTIO_GPU_GL(vdev);
|
|
struct virtio_gpu_ctrl_command *cmd;
|
|
|
|
if (!virtio_queue_ready(vq)) {
|
|
return;
|
|
}
|
|
|
|
if (!gl->renderer_inited) {
|
|
virtio_gpu_virgl_init(g);
|
|
gl->renderer_inited = true;
|
|
}
|
|
if (gl->renderer_reset) {
|
|
gl->renderer_reset = false;
|
|
virtio_gpu_virgl_reset(g);
|
|
}
|
|
|
|
cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command));
|
|
while (cmd) {
|
|
cmd->vq = vq;
|
|
cmd->error = 0;
|
|
cmd->finished = false;
|
|
QTAILQ_INSERT_TAIL(&g->cmdq, cmd, next);
|
|
cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command));
|
|
}
|
|
|
|
virtio_gpu_process_cmdq(g);
|
|
virtio_gpu_virgl_fence_poll(g);
|
|
}
|
|
|
|
static void virtio_gpu_gl_reset(VirtIODevice *vdev)
|
|
{
|
|
VirtIOGPU *g = VIRTIO_GPU(vdev);
|
|
VirtIOGPUGL *gl = VIRTIO_GPU_GL(vdev);
|
|
|
|
virtio_gpu_reset(vdev);
|
|
|
|
/*
|
|
* GL functions must be called with the associated GL context in main
|
|
* thread, and when the renderer is unblocked.
|
|
*/
|
|
if (gl->renderer_inited && !gl->renderer_reset) {
|
|
virtio_gpu_virgl_reset_scanout(g);
|
|
gl->renderer_reset = true;
|
|
}
|
|
}
|
|
|
|
static void virtio_gpu_gl_device_realize(DeviceState *qdev, Error **errp)
|
|
{
|
|
VirtIOGPU *g = VIRTIO_GPU(qdev);
|
|
|
|
#if defined(HOST_WORDS_BIGENDIAN)
|
|
error_setg(errp, "virgl is not supported on bigendian platforms");
|
|
return;
|
|
#endif
|
|
|
|
if (!object_resolve_path_type("", TYPE_VIRTIO_GPU_GL, NULL)) {
|
|
error_setg(errp, "at most one %s device is permitted", TYPE_VIRTIO_GPU_GL);
|
|
return;
|
|
}
|
|
|
|
if (!display_opengl) {
|
|
error_setg(errp, "opengl is not available");
|
|
return;
|
|
}
|
|
|
|
g->parent_obj.conf.flags |= (1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED);
|
|
VIRTIO_GPU_BASE(g)->virtio_config.num_capsets =
|
|
virtio_gpu_virgl_get_num_capsets(g);
|
|
|
|
virtio_gpu_device_realize(qdev, errp);
|
|
}
|
|
|
|
static Property virtio_gpu_gl_properties[] = {
|
|
DEFINE_PROP_BIT("stats", VirtIOGPU, parent_obj.conf.flags,
|
|
VIRTIO_GPU_FLAG_STATS_ENABLED, false),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void virtio_gpu_gl_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
|
|
VirtIOGPUBaseClass *vbc = VIRTIO_GPU_BASE_CLASS(klass);
|
|
VirtIOGPUClass *vgc = VIRTIO_GPU_CLASS(klass);
|
|
|
|
vbc->gl_flushed = virtio_gpu_gl_flushed;
|
|
vgc->handle_ctrl = virtio_gpu_gl_handle_ctrl;
|
|
vgc->process_cmd = virtio_gpu_virgl_process_cmd;
|
|
vgc->update_cursor_data = virtio_gpu_gl_update_cursor_data;
|
|
|
|
vdc->realize = virtio_gpu_gl_device_realize;
|
|
vdc->reset = virtio_gpu_gl_reset;
|
|
device_class_set_props(dc, virtio_gpu_gl_properties);
|
|
}
|
|
|
|
static const TypeInfo virtio_gpu_gl_info = {
|
|
.name = TYPE_VIRTIO_GPU_GL,
|
|
.parent = TYPE_VIRTIO_GPU,
|
|
.instance_size = sizeof(VirtIOGPUGL),
|
|
.class_init = virtio_gpu_gl_class_init,
|
|
};
|
|
module_obj(TYPE_VIRTIO_GPU_GL);
|
|
|
|
static void virtio_register_types(void)
|
|
{
|
|
type_register_static(&virtio_gpu_gl_info);
|
|
}
|
|
|
|
type_init(virtio_register_types)
|
|
|
|
module_dep("hw-display-virtio-gpu");
|