summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c110
1 files changed, 0 insertions, 110 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
deleted file mode 100644
index 90097d04b45f..000000000000
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
+++ /dev/null
@@ -1,110 +0,0 @@
-// 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 "vmwgfx_drv.h"
-
-static int vmw_bo_vm_lookup(struct ttm_device *bdev,
- struct drm_file *filp,
- unsigned long offset,
- unsigned long pages,
- struct ttm_buffer_object **p_bo)
-{
- struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev);
- struct drm_device *drm = &dev_priv->drm;
- struct drm_vma_offset_node *node;
- int ret;
-
- *p_bo = NULL;
-
- drm_vma_offset_lock_lookup(bdev->vma_manager);
-
- node = drm_vma_offset_lookup_locked(bdev->vma_manager, offset, pages);
- if (likely(node)) {
- *p_bo = container_of(node, struct ttm_buffer_object,
- base.vma_node);
- *p_bo = ttm_bo_get_unless_zero(*p_bo);
- }
-
- drm_vma_offset_unlock_lookup(bdev->vma_manager);
-
- if (!*p_bo) {
- drm_err(drm, "Could not find buffer object to map\n");
- return -EINVAL;
- }
-
- if (!drm_vma_node_is_allowed(node, filp)) {
- ret = -EACCES;
- goto out_no_access;
- }
-
- return 0;
-out_no_access:
- ttm_bo_put(*p_bo);
- return ret;
-}
-
-int vmw_mmap(struct file *filp, struct vm_area_struct *vma)
-{
- static const struct vm_operations_struct vmw_vm_ops = {
- .pfn_mkwrite = vmw_bo_vm_mkwrite,
- .page_mkwrite = vmw_bo_vm_mkwrite,
- .fault = vmw_bo_vm_fault,
- .open = ttm_bo_vm_open,
- .close = ttm_bo_vm_close,
- };
- struct drm_file *file_priv = filp->private_data;
- struct vmw_private *dev_priv = vmw_priv(file_priv->minor->dev);
- struct ttm_device *bdev = &dev_priv->bdev;
- struct ttm_buffer_object *bo;
- int ret;
-
- if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET_START))
- return -EINVAL;
-
- ret = vmw_bo_vm_lookup(bdev, file_priv, vma->vm_pgoff, vma_pages(vma), &bo);
- if (unlikely(ret != 0))
- return ret;
-
- ret = ttm_bo_mmap_obj(vma, bo);
- if (unlikely(ret != 0))
- goto out_unref;
-
- vma->vm_ops = &vmw_vm_ops;
-
- /* Use VM_PFNMAP rather than VM_MIXEDMAP if not a COW mapping */
- if (!is_cow_mapping(vma->vm_flags))
- vm_flags_mod(vma, VM_PFNMAP, VM_MIXEDMAP);
-
- ttm_bo_put(bo); /* release extra ref taken by ttm_bo_mmap_obj() */
-
- return 0;
-
-out_unref:
- ttm_bo_put(bo);
- return ret;
-}
-