1 /* $NetBSD: qxl_gem.c,v 1.2 2018/08/27 04:58:35 riastradh Exp $ */ 2 3 /* 4 * Copyright 2013 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Dave Airlie 25 * Alon Levy 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: qxl_gem.c,v 1.2 2018/08/27 04:58:35 riastradh Exp $"); 30 31 #include "drmP.h" 32 #include "drm/drm.h" 33 #include "qxl_drv.h" 34 #include "qxl_object.h" 35 36 void qxl_gem_object_free(struct drm_gem_object *gobj) 37 { 38 struct qxl_bo *qobj = gem_to_qxl_bo(gobj); 39 struct qxl_device *qdev; 40 struct ttm_buffer_object *tbo; 41 42 qdev = (struct qxl_device *)gobj->dev->dev_private; 43 44 qxl_surface_evict(qdev, qobj, false); 45 46 tbo = &qobj->tbo; 47 ttm_bo_unref(&tbo); 48 } 49 50 int qxl_gem_object_create(struct qxl_device *qdev, int size, 51 int alignment, int initial_domain, 52 bool discardable, bool kernel, 53 struct qxl_surface *surf, 54 struct drm_gem_object **obj) 55 { 56 struct qxl_bo *qbo; 57 int r; 58 59 *obj = NULL; 60 /* At least align on page size */ 61 if (alignment < PAGE_SIZE) 62 alignment = PAGE_SIZE; 63 r = qxl_bo_create(qdev, size, kernel, false, initial_domain, surf, &qbo); 64 if (r) { 65 if (r != -ERESTARTSYS) 66 DRM_ERROR( 67 "Failed to allocate GEM object (%d, %d, %u, %d)\n", 68 size, initial_domain, alignment, r); 69 return r; 70 } 71 *obj = &qbo->gem_base; 72 73 mutex_lock(&qdev->gem.mutex); 74 list_add_tail(&qbo->list, &qdev->gem.objects); 75 mutex_unlock(&qdev->gem.mutex); 76 77 return 0; 78 } 79 80 int qxl_gem_object_create_with_handle(struct qxl_device *qdev, 81 struct drm_file *file_priv, 82 u32 domain, 83 size_t size, 84 struct qxl_surface *surf, 85 struct qxl_bo **qobj, 86 uint32_t *handle) 87 { 88 struct drm_gem_object *gobj; 89 int r; 90 91 BUG_ON(!qobj); 92 BUG_ON(!handle); 93 94 r = qxl_gem_object_create(qdev, size, 0, 95 domain, 96 false, false, surf, 97 &gobj); 98 if (r) 99 return -ENOMEM; 100 r = drm_gem_handle_create(file_priv, gobj, handle); 101 if (r) 102 return r; 103 /* drop reference from allocate - handle holds it now */ 104 *qobj = gem_to_qxl_bo(gobj); 105 drm_gem_object_unreference_unlocked(gobj); 106 return 0; 107 } 108 109 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) 110 { 111 return 0; 112 } 113 114 void qxl_gem_object_close(struct drm_gem_object *obj, 115 struct drm_file *file_priv) 116 { 117 } 118 119 int qxl_gem_init(struct qxl_device *qdev) 120 { 121 INIT_LIST_HEAD(&qdev->gem.objects); 122 return 0; 123 } 124 125 void qxl_gem_fini(struct qxl_device *qdev) 126 { 127 qxl_bo_force_delete(qdev); 128 } 129