/************************************************************************** * * Copyright © 2009-2011 VMware, Inc., Palo Alto, CA., USA * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ #include <drm/drmP.h> #include "vmwgfx_drv.h" int vmw_mmap(struct file *filp, struct vm_area_struct *vma) { struct drm_file *file_priv; struct vmw_private *dev_priv; if (unlikely(vma->vm_pgoff < VMWGFX_FILE_PAGE_OFFSET)) { DRM_ERROR("Illegal attempt to mmap old fifo space.\n"); return -EINVAL; } file_priv = filp->private_data; dev_priv = vmw_priv(file_priv->minor->dev); return ttm_bo_mmap(filp, vma, &dev_priv->bdev); } static int vmw_ttm_mem_global_init(struct drm_global_reference *ref) { DRM_INFO("global init.\n"); return ttm_mem_global_init(ref->object); } static void vmw_ttm_mem_global_release(struct drm_global_reference *ref) { ttm_mem_global_release(ref->object); } int vmw_ttm_global_init(struct vmw_private *dev_priv) { struct drm_global_reference *global_ref; int ret; global_ref = &dev_priv->mem_global_ref; global_ref->global_type = DRM_GLOBAL_TTM_MEM; global_ref->size = sizeof(struct ttm_mem_global); global_ref->init = &vmw_ttm_mem_global_init; global_ref->release = &vmw_ttm_mem_global_release; ret = drm_global_item_ref(global_ref); if (unlikely(ret != 0)) { DRM_ERROR("Failed setting up TTM memory accounting.\n"); return ret; } dev_priv->bo_global_ref.mem_glob = dev_priv->mem_global_ref.object; global_ref = &dev_priv->bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); global_ref->init = &ttm_bo_global_init; global_ref->release = &ttm_bo_global_release; ret = drm_global_item_ref(global_ref); if (unlikely(ret != 0)) { DRM_ERROR("Failed setting up TTM buffer objects.\n"); goto out_no_bo; } return 0; out_no_bo: drm_global_item_unref(&dev_priv->mem_global_ref); return ret; } void vmw_ttm_global_release(struct vmw_private *dev_priv) { drm_global_item_unref(&dev_priv->bo_global_ref.ref); drm_global_item_unref(&dev_priv->mem_global_ref); }