linux/drivers/gpu/drm/i915/selftests/mock_drm.c
Chris Wilson 66d9cb5d80 drm/i915: Mock the GEM device for self-testing
A simulacrum of drm_i915_private to let us pretend interactions with the
device.

v2: Tidy init error paths

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-6-chris@chris-wilson.co.uk
2017-02-13 20:45:28 +00:00

55 lines
1.8 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"
static inline struct inode fake_inode(struct drm_i915_private *i915)
{
return (struct inode){ .i_rdev = i915->drm.primary->index };
}
struct drm_file *mock_file(struct drm_i915_private *i915)
{
struct inode inode = fake_inode(i915);
struct file filp = {};
struct drm_file *file;
int err;
err = drm_open(&inode, &filp);
if (unlikely(err))
return ERR_PTR(err);
file = filp.private_data;
file->authenticated = true;
return file;
}
void mock_file_free(struct drm_i915_private *i915, struct drm_file *file)
{
struct inode inode = fake_inode(i915);
struct file filp = { .private_data = file };
drm_release(&inode, &filp);
}