OpenCloudOS-Kernel/drivers/gpu/drm/i915/selftests/mock_drm.c

74 lines
2.0 KiB
C

/*
* Copyright © 2017 Intel Corporation
*
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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 "mock_drm.h"
struct drm_file *mock_file(struct drm_i915_private *i915)
{
struct file *filp;
struct inode *inode;
struct drm_file *file;
int err;
inode = kzalloc(sizeof(*inode), GFP_KERNEL);
if (!inode) {
err = -ENOMEM;
goto err;
}
inode->i_rdev = i915->drm.primary->index;
filp = kzalloc(sizeof(*filp), GFP_KERNEL);
if (!filp) {
err = -ENOMEM;
goto err_inode;
}
err = drm_open(inode, filp);
if (err)
goto err_filp;
file = filp->private_data;
memset(&file->filp, POISON_INUSE, sizeof(file->filp));
file->authenticated = true;
kfree(filp);
kfree(inode);
return file;
err_filp:
kfree(filp);
err_inode:
kfree(inode);
err:
return ERR_PTR(err);
}
void mock_file_free(struct drm_i915_private *i915, struct drm_file *file)
{
struct file filp = { .private_data = file };
drm_release(NULL, &filp);
}