/* * Copyright 2011 Red Hat, Inc. * Copyright © 2014 The Chromium OS Authors * * 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 * on the rights to use, copy, modify, merge, publish, distribute, sub * license, and/or sell copies of the Software, and to permit persons to whom * them 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 MERCHANTIBILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS 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. * * Authors: * Adam Jackson <[email protected]> * Ben Widawsky <[email protected]> */ /* * This is vgem, a (non-hardware-backed) GEM service. This is used by Mesa's * software renderer and the X server for efficient buffer sharing. */ #include <linux/dma-buf.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/shmem_fs.h> #include <linux/vmalloc.h> #include <drm/drm_drv.h> #include <drm/drm_file.h> #include <drm/drm_gem_shmem_helper.h> #include <drm/drm_ioctl.h> #include <drm/drm_managed.h> #include <drm/drm_prime.h> #include "vgem_drv.h" #define DRIVER_NAME … #define DRIVER_DESC … #define DRIVER_DATE … #define DRIVER_MAJOR … #define DRIVER_MINOR … static struct vgem_device { … } *vgem_device; static int vgem_open(struct drm_device *dev, struct drm_file *file) { … } static void vgem_postclose(struct drm_device *dev, struct drm_file *file) { … } static struct drm_ioctl_desc vgem_ioctls[] = …; DEFINE_DRM_GEM_FOPS(vgem_driver_fops); static struct drm_gem_object *vgem_gem_create_object(struct drm_device *dev, size_t size) { … } static const struct drm_driver vgem_driver = …; static int __init vgem_init(void) { … } static void __exit vgem_exit(void) { … } module_init(…) …; module_exit(vgem_exit); MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…); MODULE_LICENSE(…) …;
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