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/*
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#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;
}
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);
}
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