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