linux/drivers/gpu/drm/virtio/virtgpu_object.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 <linux/dma-mapping.h>
#include <linux/moduleparam.h>

#include "virtgpu_drv.h"

static int virtio_gpu_virglrenderer_workaround = …;
module_param_named(virglhack, virtio_gpu_virglrenderer_workaround, int, 0400);

int virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev, uint32_t *resid)
{ … }

static void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id)
{ … }

void virtio_gpu_cleanup_object(struct virtio_gpu_object *bo)
{ … }

static void virtio_gpu_free_object(struct drm_gem_object *obj)
{ … }

static const struct drm_gem_object_funcs virtio_gpu_shmem_funcs = …;

bool virtio_gpu_is_shmem(struct virtio_gpu_object *bo)
{ … }

struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
						size_t size)
{ … }

static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev,
					struct virtio_gpu_object *bo,
					struct virtio_gpu_mem_entry **ents,
					unsigned int *nents)
{ … }

int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
			     struct virtio_gpu_object_params *params,
			     struct virtio_gpu_object **bo_ptr,
			     struct virtio_gpu_fence *fence)
{ … }