/*
* Copyright 2015 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 < bskeggs @ redhat . com >
*/
#include "priv.h"
#include "chan.h"
#include <engine/fifo.h>
bool
nvkm_sw_mthd(struct nvkm_sw *sw, int chid, int subc, u32 mthd, u32 data)
{
struct nvkm_sw_chan *chan;
bool handled = false ;
unsigned long flags;
spin_lock_irqsave(&sw->engine.lock, flags);
list_for_each_entry(chan, &sw->chan, head) {
if (chan->fifo->id == chid) {
handled = nvkm_sw_chan_mthd(chan, subc, mthd, data);
list_del(&chan->head);
list_add(&chan->head, &sw->chan);
break ;
}
}
spin_unlock_irqrestore(&sw->engine.lock, flags);
return handled;
}
static int
nvkm_sw_oclass_new(const struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nvkm_sw_chan *chan = nvkm_sw_chan(oclass->parent);
const struct nvkm_sw_chan_sclass *sclass = oclass->engn;
return sclass->ctor(chan, oclass, data, size, pobject);
}
static int
nvkm_sw_oclass_get(struct nvkm_oclass *oclass, int index)
{
struct nvkm_sw *sw = nvkm_sw(oclass->engine);
int c = 0 ;
while (sw->func->sclass[c].ctor) {
if (c++ == index) {
oclass->engn = &sw->func->sclass[index];
oclass->base = sw->func->sclass[index].base;
oclass->base.ctor = nvkm_sw_oclass_new;
return index;
}
}
return c;
}
static int
nvkm_sw_cclass_get(struct nvkm_chan *fifoch, const struct nvkm_oclass *oclass,
struct nvkm_object **pobject)
{
struct nvkm_sw *sw = nvkm_sw(oclass->engine);
return sw->func->chan_new(sw, fifoch, oclass, pobject);
}
static void *
nvkm_sw_dtor(struct nvkm_engine *engine)
{
return nvkm_sw(engine);
}
static const struct nvkm_engine_func
nvkm_sw = {
.dtor = nvkm_sw_dtor,
.fifo.cclass = nvkm_sw_cclass_get,
.fifo.sclass = nvkm_sw_oclass_get,
};
int
nvkm_sw_new_(const struct nvkm_sw_func *func, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, struct nvkm_sw **psw)
{
struct nvkm_sw *sw;
if (!(sw = *psw = kzalloc(sizeof (*sw), GFP_KERNEL)))
return -ENOMEM;
INIT_LIST_HEAD(&sw->chan);
sw->func = func;
return nvkm_engine_ctor(&nvkm_sw, device, type, inst, true , &sw->engine);
}
Messung V0.5 in Prozent C=100 H=97 G=98
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-06)
¤
*© Formatika GbR, Deutschland