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/*
* Copyright 2012 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.
*
* Authors: Ben Skeggs
*/
#include <core/engine.h>
#include <core/device.h>
#include <core/option.h>
struct nvkm_engine *
nvkm_engine(void *obj, int idx)
{
obj = nvkm_subdev(obj, idx);
if (obj && nv_iclass(obj, NV_ENGINE_CLASS))
return nv_engine(obj);
return NULL;
}
int
nvkm_engine_create_(struct nvkm_object *parent, struct nvkm_object *engobj,
struct nvkm_oclass *oclass, bool enable,
const char *iname, const char *fname,
int length, void **pobject)
{
struct nvkm_engine *engine;
int ret;
ret = nvkm_subdev_create_(parent, engobj, oclass, NV_ENGINE_CLASS,
iname, fname, length, pobject);
engine = *pobject;
if (ret)
return ret;
if (parent) {
struct nvkm_device *device = nv_device(parent);
int engidx = nv_engidx(engine);
if (device->disable_mask & (1ULL << engidx)) {
if (!nvkm_boolopt(device->cfgopt, iname, false)) {
nvkm_debug(&engine->subdev,
"engine disabled by hw/fw\n");
return -ENODEV;
}
nvkm_warn(&engine->subdev,
"ignoring hw/fw engine disable\n");
}
if (!nvkm_boolopt(device->cfgopt, iname, enable)) {
if (!enable)
nvkm_warn(&engine->subdev,
"disabled, %s=1 to enable\n", iname);
return -ENODEV;
}
}
INIT_LIST_HEAD(&engine->contexts);
spin_lock_init(&engine->lock);
return 0;
}
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