1/*
  2 * Copyright 2013 Red Hat Inc.
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice shall be included in
 12 * all copies or substantial portions of the Software.
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 20 * OTHER DEALINGS IN THE SOFTWARE.
 21 *
 22 * Authors: Dave Airlie
 23 *          Alon Levy
 24 */
 25
 26#include "drmP.h"
 27#include "drm/drm.h"
 28#include "qxl_drv.h"
 29#include "qxl_object.h"
 30
 31void qxl_gem_object_free(struct drm_gem_object *gobj)
 32{
 33	struct qxl_bo *qobj = gem_to_qxl_bo(gobj);
 34	struct qxl_device *qdev;
 35	struct ttm_buffer_object *tbo;
 36
 37	qdev = (struct qxl_device *)gobj->dev->dev_private;
 38
 39	qxl_surface_evict(qdev, qobj, false);
 40
 41	tbo = &qobj->tbo;
 42	ttm_bo_unref(&tbo);
 43}
 44
 45int qxl_gem_object_create(struct qxl_device *qdev, int size,
 46			  int alignment, int initial_domain,
 47			  bool discardable, bool kernel,
 48			  struct qxl_surface *surf,
 49			  struct drm_gem_object **obj)
 50{
 51	struct qxl_bo *qbo;
 52	int r;
 53
 54	*obj = NULL;
 55	/* At least align on page size */
 56	if (alignment < PAGE_SIZE)
 57		alignment = PAGE_SIZE;
 58	r = qxl_bo_create(qdev, size, kernel, false, initial_domain, surf, &qbo);
 59	if (r) {
 60		if (r != -ERESTARTSYS)
 61			DRM_ERROR(
 62			"Failed to allocate GEM object (%d, %d, %u, %d)\n",
 63				  size, initial_domain, alignment, r);
 64		return r;
 65	}
 66	*obj = &qbo->gem_base;
 67
 68	mutex_lock(&qdev->gem.mutex);
 69	list_add_tail(&qbo->list, &qdev->gem.objects);
 70	mutex_unlock(&qdev->gem.mutex);
 71
 72	return 0;
 73}
 74
 75int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
 76				      struct drm_file *file_priv,
 77				      u32 domain,
 78				      size_t size,
 79				      struct qxl_surface *surf,
 80				      struct qxl_bo **qobj,
 81				      uint32_t *handle)
 82{
 83	struct drm_gem_object *gobj;
 84	int r;
 85
 86	BUG_ON(!qobj);
 87	BUG_ON(!handle);
 88
 89	r = qxl_gem_object_create(qdev, size, 0,
 90				  domain,
 91				  false, false, surf,
 92				  &gobj);
 93	if (r)
 94		return -ENOMEM;
 95	r = drm_gem_handle_create(file_priv, gobj, handle);
 96	if (r)
 97		return r;
 98	/* drop reference from allocate - handle holds it now */
 99	*qobj = gem_to_qxl_bo(gobj);
100	drm_gem_object_unreference_unlocked(gobj);
101	return 0;
102}
103
104int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
105{
106	return 0;
107}
108
109void qxl_gem_object_close(struct drm_gem_object *obj,
110			  struct drm_file *file_priv)
111{
112}
113
114void qxl_gem_init(struct qxl_device *qdev)
115{
116	INIT_LIST_HEAD(&qdev->gem.objects);
117}
118
119void qxl_gem_fini(struct qxl_device *qdev)
120{
121	qxl_bo_force_delete(qdev);
122}