blob: db50b46d9babc5bfb248e066259426847ccdd056 [file] [log] [blame]
/*
* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <xf86drm.h>
#include "drv_priv.h"
#include "external/virtgpu_drm.h"
#include "util.h"
#include "virtgpu.h"
#define PARAM(x) \
(struct virtgpu_param) \
{ \
x, #x, 0 \
}
struct virtgpu_param params[] = {
PARAM(VIRTGPU_PARAM_3D_FEATURES), PARAM(VIRTGPU_PARAM_CAPSET_QUERY_FIX),
PARAM(VIRTGPU_PARAM_RESOURCE_BLOB), PARAM(VIRTGPU_PARAM_HOST_VISIBLE),
PARAM(VIRTGPU_PARAM_CROSS_DEVICE), PARAM(VIRTGPU_PARAM_CONTEXT_INIT),
PARAM(VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs), PARAM(VIRTGPU_PARAM_CREATE_GUEST_HANDLE),
PARAM(VIRTGPU_PARAM_RESOURCE_SYNC), PARAM(VIRTGPU_PARAM_GUEST_VRAM),
};
extern const struct backend virtgpu_virgl;
extern const struct backend virtgpu_cross_domain;
static int virtgpu_init(struct driver *drv)
{
int ret = 0;
const struct backend *virtgpu_backends[2] = {
&virtgpu_cross_domain,
&virtgpu_virgl,
};
for (uint32_t i = 0; i < ARRAY_SIZE(params); i++) {
struct drm_virtgpu_getparam get_param = { 0 };
get_param.param = params[i].param;
get_param.value = (uint64_t)(uintptr_t)&params[i].value;
int ret = drmIoctl(drv->fd, DRM_IOCTL_VIRTGPU_GETPARAM, &get_param);
if (ret)
drv_log("virtgpu backend not enabling %s\n", params[i].name);
}
for (uint32_t i = 0; i < ARRAY_SIZE(virtgpu_backends); i++) {
const struct backend *backend = virtgpu_backends[i];
ret = backend->init(drv);
if (ret)
continue;
drv->backend = backend;
return 0;
}
return ret;
}
const struct backend backend_virtgpu = {
.name = "virtio_gpu",
.init = virtgpu_init,
};