[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / i915 / selftests / mock_drm.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);
}
Commit	Line	Data
66d9cb5d CW	1	/*
	2	* Copyright © 2017 Intel Corporation
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice (including the next
	12	* paragraph) shall be included in all copies or substantial portions of the
	13	* Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	20	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
	21	* IN THE SOFTWARE.
	22	*
	23	*/
	24
	25	#include "mock_drm.h"
	26
66d9cb5d CW	27	struct drm_file mock_file(struct drm_i915_private i915)
66d9cb5d CW	28	{
b162d47e CW	29	struct file *filp;
b162d47e CW	30	struct inode *inode;
66d9cb5d CW	31	struct drm_file *file;
	32	int err;
	33
b162d47e CW	34	inode = kzalloc(sizeof(*inode), GFP_KERNEL);
	35	if (!inode) {
	36	err = -ENOMEM;
	37	goto err;
	38	}
	39
	40	inode->i_rdev = i915->drm.primary->index;
66d9cb5d	41
b162d47e CW	42	filp = kzalloc(sizeof(*filp), GFP_KERNEL);
	43	if (!filp) {
	44	err = -ENOMEM;
	45	goto err_inode;
	46	}
	47
	48	err = drm_open(inode, filp);
	49	if (err)
	50	goto err_filp;
	51
	52	file = filp->private_data;
	53	memset(&file->filp, POISON_INUSE, sizeof(file->filp));
66d9cb5d	54	file->authenticated = true;
b162d47e CW	55
	56	kfree(filp);
	57	kfree(inode);
66d9cb5d	58	return file;
b162d47e CW	59
	60	err_filp:
	61	kfree(filp);
	62	err_inode:
	63	kfree(inode);
	64	err:
	65	return ERR_PTR(err);
66d9cb5d CW	66	}
	67
	68	void mock_file_free(struct drm_i915_private i915, struct drm_file file)
	69	{
66d9cb5d CW	70	struct file filp = { .private_data = file };
66d9cb5d CW	71
b162d47e	72	drm_release(NULL, &filp);
66d9cb5d	73	}