pscnv/pscnv_gem.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2010 PathScale Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #include "drm.h"
  28 #include "nouveau_drv.h"
  29 #include "pscnv_gem.h"
  30 #include "pscnv_mem.h"
  31 #include "pscnv_drm.h"
  32
  33 void pscnv_gem_free_object (struct drm_gem_object *obj) {
  34         struct pscnv_bo *vo = obj->driver_private;
  35 #ifndef PSCNV_KAPI_DRM_GEM_OBJECT_HANDLE_COUNT
  36         atomic_dec(&obj->handle_count);
  37 #endif
  38         if (!vo->chan)
  39                 pscnv_mem_free(vo);
  40         else
  41                 vo->gem = 0;
  42 #ifndef __linux__
  43         drm_gem_free_mmap_offset(obj);
  44 #endif
  45         drm_gem_object_release(obj);
  46         kfree(obj);
  47 }
  48
  49 struct drm_gem_object *pscnv_gem_wrap(struct drm_device *dev, struct pscnv_bo *vo)
  50 {
  51         struct drm_gem_object *obj;
  52
  53         obj = drm_gem_object_alloc(dev, vo->size);
  54         if (!obj)
  55                 return 0;
  56 #ifndef __linux__
  57         if (drm_gem_create_mmap_offset(obj) != 0) {
  58                 drm_gem_object_handle_unreference_unlocked(obj);
  59                 return 0;
  60         }
  61 #endif
  62
  63 #ifndef PSCNV_KAPI_DRM_GEM_OBJECT_HANDLE_COUNT
  64         atomic_inc(&obj->handle_count);
  65 #endif
  66         obj->driver_private = vo;
  67         vo->gem = obj;
  68         return obj;
  69 }
  70
  71 struct drm_gem_object *pscnv_gem_new(struct drm_device *dev, uint64_t size, uint32_t flags,
  72                 uint32_t tile_flags, uint32_t cookie, uint32_t *user)
  73 {
  74         int i;
  75         struct pscnv_bo *vo = pscnv_mem_alloc(dev, size, flags, tile_flags, cookie);
  76         struct drm_gem_object *obj;
  77         if (!vo)
  78                 return 0;
  79
  80         if (!(obj = pscnv_gem_wrap(dev, vo)))
  81                 pscnv_mem_free(vo);
  82         else if (user)
  83                 for (i = 0; i < DRM_ARRAY_SIZE(vo->user); i++)
  84                         vo->user[i] = user[i];
  85         else
  86                 for (i = 0; i < DRM_ARRAY_SIZE(vo->user); i++)
  87                         vo->user[i] = 0;
  88
  89         return obj;
  90 }