linux/drivers/gpu/drm/virtio/virtgpu_fence.c

/*
 * Copyright (C) 2015 Red Hat, Inc.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <trace/events/dma_fence.h>

#include "virtgpu_drv.h"

#define to_virtio_gpu_fence(x) …

static const char *virtio_gpu_get_driver_name(struct dma_fence *f)
{ … }

static const char *virtio_gpu_get_timeline_name(struct dma_fence *f)
{ … }

static bool virtio_gpu_fence_signaled(struct dma_fence *f)
{ … }

static void virtio_gpu_fence_value_str(struct dma_fence *f, char *str, int size)
{ … }

static void virtio_gpu_timeline_value_str(struct dma_fence *f, char *str,
					  int size)
{ … }

static const struct dma_fence_ops virtio_gpu_fence_ops = …;

struct virtio_gpu_fence *virtio_gpu_fence_alloc(struct virtio_gpu_device *vgdev,
						uint64_t base_fence_ctx,
						uint32_t ring_idx)
{ … }

void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
			  struct virtio_gpu_ctrl_hdr *cmd_hdr,
			  struct virtio_gpu_fence *fence)
{ … }

void virtio_gpu_fence_event_process(struct virtio_gpu_device *vgdev,
				    u64 fence_id)
{ … }