/* * Copyright 2020 Red Hat Inc. * * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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"chid.h"
void
nvkm_chid_put(struct nvkm_chid *chid, int id, spinlock_t *data_lock)
{ if (id >= 0) {
spin_lock_irq(&chid->lock);
spin_lock(data_lock);
chid->data[id] = NULL;
spin_unlock(data_lock);
clear_bit(id, chid->used);
spin_unlock_irq(&chid->lock);
}
}
int
nvkm_chid_get(struct nvkm_chid *chid, void *data)
{ int id = -1, cid;
struct nvkm_chid *
nvkm_chid_ref(struct nvkm_chid *chid)
{ if (chid)
kref_get(&chid->kref);
return chid;
}
int
nvkm_chid_new(conststruct nvkm_event_func *func, struct nvkm_subdev *subdev, int nr, int first, int count, struct nvkm_chid **pchid)
{ struct nvkm_chid *chid; int id;
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