/*
* Copyright (c) 2017, 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 <nvgpu/enabled.h>
#include <nvgpu/bitops.h>
#include "gk20a/gk20a.h"
int nvgpu_init_enabled_flags(struct gk20a *g)
{
/*
* Zero all flags initially. Flags that should be set to non-zero states
* can be done so during driver init.
*/
g->enabled_flags = nvgpu_kzalloc(g,
BITS_TO_LONGS(NVGPU_MAX_ENABLED_BITS) *
sizeof(unsigned long));
if (!g->enabled_flags)
return -ENOMEM;
return 0;
}
/*
* Call this on driver shutdown!
*/
void nvgpu_free_enabled_flags(struct gk20a *g)
{
nvgpu_kfree(g, g->enabled_flags);
}
bool nvgpu_is_enabled(struct gk20a *g, int flag)
{
return test_bit(flag, g->enabled_flags);
}
bool __nvgpu_set_enabled(struct gk20a *g, int flag, bool state)
{
if (state)
return test_and_set_bit(flag, g->enabled_flags);
else
return test_and_clear_bit(flag, g->enabled_flags);
}
