55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
|
||
|
|
*
|
||
|
|
* 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 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 "acr.h"
|
||
|
|
|
||
|
|
#include <core/firmware.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Convenience function to duplicate a firmware file in memory and check that
|
||
|
|
* it has the required minimum size.
|
||
|
|
*/
|
||
|
|
void *
|
||
|
|
nvkm_acr_load_firmware(const struct nvkm_subdev *subdev, const char *name,
|
||
|
|
size_t min_size)
|
||
|
|
{
|
||
|
|
const struct firmware *fw;
|
||
|
|
void *blob;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = nvkm_firmware_get(subdev->device, name, &fw);
|
||
|
|
if (ret)
|
||
|
|
return ERR_PTR(ret);
|
||
|
|
if (fw->size < min_size) {
|
||
|
|
nvkm_error(subdev, "%s is smaller than expected size %zu\n",
|
||
|
|
name, min_size);
|
||
|
|
nvkm_firmware_put(fw);
|
||
|
|
return ERR_PTR(-EINVAL);
|
||
|
|
}
|
||
|
|
blob = kmemdup(fw->data, fw->size, GFP_KERNEL);
|
||
|
|
nvkm_firmware_put(fw);
|
||
|
|
if (!blob)
|
||
|
|
return ERR_PTR(-ENOMEM);
|
||
|
|
|
||
|
|
return blob;
|
||
|
|
}
|