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
 35	if (qobj)
 36		qxl_bo_unref(&qobj);
 37}
 38
 39int qxl_gem_object_create(struct qxl_device *qdev, int size,
 40			  int alignment, int initial_domain,
 41			  bool discardable, bool kernel,
 42			  struct qxl_surface *surf,
 43			  struct drm_gem_object **obj)
 44{
 45	struct qxl_bo *qbo;
 46	int r;
 47
 48	*obj = NULL;
 49	/* At least align on page size */
 50	if (alignment < PAGE_SIZE)
 51		alignment = PAGE_SIZE;
 52	r = qxl_bo_create(qdev, size, kernel, false, initial_domain, surf, &qbo);
 53	if (r) {
 54		if (r != -ERESTARTSYS)
 55			DRM_ERROR(
 56			"Failed to allocate GEM object (%d, %d, %u, %d)\n",
 57				  size, initial_domain, alignment, r);
 58		return r;
 59	}
 60	*obj = &qbo->gem_base;
 61
 62	mutex_lock(&qdev->gem.mutex);
 63	list_add_tail(&qbo->list, &qdev->gem.objects);
 64	mutex_unlock(&qdev->gem.mutex);
 65
 66	return 0;
 67}
 68
 69int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
 70				      struct drm_file *file_priv,
 71				      u32 domain,
 72				      size_t size,
 73				      struct qxl_surface *surf,
 74				      struct qxl_bo **qobj,
 75				      uint32_t *handle)
 76{
 77	struct drm_gem_object *gobj;
 78	int r;
 79
 80	BUG_ON(!qobj);
 81	BUG_ON(!handle);
 82
 83	r = qxl_gem_object_create(qdev, size, 0,
 84				  domain,
 85				  false, false, surf,
 86				  &gobj);
 87	if (r)
 88		return -ENOMEM;
 89	r = drm_gem_handle_create(file_priv, gobj, handle);
 90	if (r)
 91		return r;
 92	/* drop reference from allocate - handle holds it now */
 93	*qobj = gem_to_qxl_bo(gobj);
 94	drm_gem_object_unreference_unlocked(gobj);
 95	return 0;
 96}
 97
 98int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
 99{
100	return 0;
101}
102
103void qxl_gem_object_close(struct drm_gem_object *obj,
104			  struct drm_file *file_priv)
105{
106}
107
108int qxl_gem_init(struct qxl_device *qdev)
109{
110	INIT_LIST_HEAD(&qdev->gem.objects);
111	return 0;
112}
113
114void qxl_gem_fini(struct qxl_device *qdev)
115{
116	qxl_bo_force_delete(qdev);
117}