99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0 OR MIT
|
||
|
|
/**************************************************************************
|
||
|
|
*
|
||
|
|
* Copyright 2009-2011 VMware, Inc., Palo Alto, CA., USA
|
||
|
|
*
|
||
|
|
* 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);
|
||
|
|
}
|