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  1. /**************************************************************************
  2.  *
  3.  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
  4.  * All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice (including the
  15.  * next paragraph) shall be included in all copies or substantial portions
  16.  * of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20.  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21.  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22.  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23.  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24.  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28. #include <drm/drmP.h>
  29. #include <drm/drm_global.h>
  30. #include "vmwgfx_drv.h"
  31.  
  32. #if 0
  33. int vmw_mmap(struct file *filp, struct vm_area_struct *vma)
  34. {
  35.         struct drm_file *file_priv;
  36.         struct vmw_private *dev_priv;
  37.  
  38. //   if (unlikely(vma->vm_pgoff < VMWGFX_FILE_PAGE_OFFSET)) {
  39. //       DRM_ERROR("Illegal attempt to mmap old fifo space.\n");
  40. //       return -EINVAL;
  41. //   }
  42.  
  43.         file_priv = filp->private_data;
  44.         dev_priv = vmw_priv(file_priv->minor->dev);
  45.         return ttm_bo_mmap(filp, vma, &dev_priv->bdev);
  46. }
  47. #endif
  48.  
  49. static int vmw_ttm_mem_global_init(struct drm_global_reference *ref)
  50. {
  51.         DRM_INFO("global init.\n");
  52.         return ttm_mem_global_init(ref->object);
  53. }
  54.  
  55. static void vmw_ttm_mem_global_release(struct drm_global_reference *ref)
  56. {
  57. //   ttm_mem_global_release(ref->object);
  58. }
  59.  
  60. int vmw_ttm_global_init(struct vmw_private *dev_priv)
  61. {
  62.     ENTER();
  63.  
  64.         struct drm_global_reference *global_ref;
  65.         int ret;
  66.  
  67.         global_ref = &dev_priv->mem_global_ref;
  68.         global_ref->global_type = DRM_GLOBAL_TTM_MEM;
  69.         global_ref->size = sizeof(struct ttm_mem_global);
  70.         global_ref->init = &vmw_ttm_mem_global_init;
  71.         global_ref->release = &vmw_ttm_mem_global_release;
  72.  
  73.         ret = drm_global_item_ref(global_ref);
  74.         if (unlikely(ret != 0)) {
  75.                 DRM_ERROR("Failed setting up TTM memory accounting.\n");
  76.                 return ret;
  77.         }
  78.  
  79.         dev_priv->bo_global_ref.mem_glob =
  80.                 dev_priv->mem_global_ref.object;
  81.         global_ref = &dev_priv->bo_global_ref.ref;
  82.         global_ref->global_type = DRM_GLOBAL_TTM_BO;
  83.         global_ref->size = sizeof(struct ttm_bo_global);
  84.         global_ref->init = &ttm_bo_global_init;
  85.         global_ref->release = &ttm_bo_global_release;
  86.         ret = drm_global_item_ref(global_ref);
  87.  
  88.         if (unlikely(ret != 0)) {
  89.                 DRM_ERROR("Failed setting up TTM buffer objects.\n");
  90.                 goto out_no_bo;
  91.         }
  92.  
  93.     LEAVE();
  94.         return 0;
  95. out_no_bo:
  96.         drm_global_item_unref(&dev_priv->mem_global_ref);
  97.         return ret;
  98. }
  99.  
  100. void vmw_ttm_global_release(struct vmw_private *dev_priv)
  101. {
  102.         drm_global_item_unref(&dev_priv->bo_global_ref.ref);
  103.         drm_global_item_unref(&dev_priv->mem_global_ref);
  104. }
  105.