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qxl_gem.c revision 1.1 
      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 
     31 void 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 
     39 int 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 
     69 int 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 
     98 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
     99 {
    100 	return 0;
    101 }
    102 
    103 void qxl_gem_object_close(struct drm_gem_object *obj,
    104 			  struct drm_file *file_priv)
    105 {
    106 }
    107 
    108 int qxl_gem_init(struct qxl_device *qdev)
    109 {
    110 	INIT_LIST_HEAD(&qdev->gem.objects);
    111 	return 0;
    112 }
    113 
    114 void qxl_gem_fini(struct qxl_device *qdev)
    115 {
    116 	qxl_bo_force_delete(qdev);
    117 }
    118