1 /* $NetBSD: vgem_drv.h,v 1.3 2021/12/18 23:45:44 riastradh Exp $ */ 2 3 /* 4 * Copyright © 2012 Intel Corporation 5 * Copyright © 2014 The Chromium OS Authors 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the next 15 * paragraph) shall be included in all copies or substantial portions of the 16 * Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 24 * IN THE SOFTWARE. 25 * 26 * Authors: 27 * Ben Widawsky <ben@bwidawsk.net> 28 * 29 */ 30 31 #ifndef _VGEM_DRV_H_ 32 #define _VGEM_DRV_H_ 33 34 #include <drm/drm_gem.h> 35 #include <drm/drm_cache.h> 36 37 #include <uapi/drm/vgem_drm.h> 38 39 struct vgem_file { 40 struct idr fence_idr; 41 struct mutex fence_mutex; 42 }; 43 44 #define to_vgem_bo(x) container_of(x, struct drm_vgem_gem_object, base) 45 struct drm_vgem_gem_object { 46 struct drm_gem_object base; 47 48 struct page **pages; 49 unsigned int pages_pin_count; 50 struct mutex pages_lock; 51 52 struct sg_table *table; 53 }; 54 55 int vgem_fence_open(struct vgem_file *file); 56 int vgem_fence_attach_ioctl(struct drm_device *dev, 57 void *data, 58 struct drm_file *file); 59 int vgem_fence_signal_ioctl(struct drm_device *dev, 60 void *data, 61 struct drm_file *file); 62 void vgem_fence_close(struct vgem_file *file); 63 64 #endif 65