1 /* 2 * Copyright © 2012 Intel Corporation 3 * Copyright © 2014 The Chromium OS Authors 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 22 * IN THE SOFTWARE. 23 * 24 * Authors: 25 * Ben Widawsky <ben@bwidawsk.net> 26 * 27 */ 28 29 #ifndef _VGEM_DRV_H_ 30 #define _VGEM_DRV_H_ 31 32 #include <drm/drmP.h> 33 #include <drm/drm_gem.h> 34 #include <drm/drm_cache.h> 35 36 #include <uapi/drm/vgem_drm.h> 37 38 struct vgem_file { 39 struct idr fence_idr; 40 struct mutex fence_mutex; 41 }; 42 43 #define to_vgem_bo(x) container_of(x, struct drm_vgem_gem_object, base) 44 struct drm_vgem_gem_object { 45 struct drm_gem_object base; 46 47 struct page **pages; 48 unsigned int pages_pin_count; 49 struct mutex pages_lock; 50 51 struct sg_table *table; 52 }; 53 54 int vgem_fence_open(struct vgem_file *file); 55 int vgem_fence_attach_ioctl(struct drm_device *dev, 56 void *data, 57 struct drm_file *file); 58 int vgem_fence_signal_ioctl(struct drm_device *dev, 59 void *data, 60 struct drm_file *file); 61 void vgem_fence_close(struct vgem_file *file); 62 63 #endif 64