358 lines
8.4 KiB
C
358 lines
8.4 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "priv.h"
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#include "chan.h"
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#include <core/client.h>
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#include <core/gpuobj.h>
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#include <core/notify.h>
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#include <subdev/mc.h>
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#include <nvif/event.h>
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#include <nvif/cl0080.h>
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#include <nvif/unpack.h>
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void
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nvkm_fifo_recover_chan(struct nvkm_fifo *fifo, int chid)
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{
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unsigned long flags;
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if (WARN_ON(!fifo->func->recover_chan))
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return;
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spin_lock_irqsave(&fifo->lock, flags);
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fifo->func->recover_chan(fifo, chid);
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spin_unlock_irqrestore(&fifo->lock, flags);
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}
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void
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nvkm_fifo_pause(struct nvkm_fifo *fifo, unsigned long *flags)
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{
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return fifo->func->pause(fifo, flags);
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}
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void
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nvkm_fifo_start(struct nvkm_fifo *fifo, unsigned long *flags)
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{
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return fifo->func->start(fifo, flags);
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}
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void
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nvkm_fifo_fault(struct nvkm_fifo *fifo, struct nvkm_fault_data *info)
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{
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return fifo->func->fault(fifo, info);
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}
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void
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nvkm_fifo_chan_put(struct nvkm_fifo *fifo, unsigned long flags,
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struct nvkm_fifo_chan **pchan)
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{
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struct nvkm_fifo_chan *chan = *pchan;
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if (likely(chan)) {
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*pchan = NULL;
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spin_unlock_irqrestore(&fifo->lock, flags);
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}
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}
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struct nvkm_fifo_chan *
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nvkm_fifo_chan_inst_locked(struct nvkm_fifo *fifo, u64 inst)
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{
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struct nvkm_fifo_chan *chan;
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list_for_each_entry(chan, &fifo->chan, head) {
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if (chan->inst->addr == inst) {
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list_del(&chan->head);
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list_add(&chan->head, &fifo->chan);
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return chan;
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}
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}
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return NULL;
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}
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struct nvkm_fifo_chan *
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nvkm_fifo_chan_inst(struct nvkm_fifo *fifo, u64 inst, unsigned long *rflags)
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{
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struct nvkm_fifo_chan *chan;
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unsigned long flags;
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spin_lock_irqsave(&fifo->lock, flags);
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if ((chan = nvkm_fifo_chan_inst_locked(fifo, inst))) {
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*rflags = flags;
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return chan;
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}
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spin_unlock_irqrestore(&fifo->lock, flags);
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return NULL;
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}
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struct nvkm_fifo_chan *
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nvkm_fifo_chan_chid(struct nvkm_fifo *fifo, int chid, unsigned long *rflags)
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{
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struct nvkm_fifo_chan *chan;
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unsigned long flags;
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spin_lock_irqsave(&fifo->lock, flags);
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list_for_each_entry(chan, &fifo->chan, head) {
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if (chan->chid == chid) {
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list_del(&chan->head);
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list_add(&chan->head, &fifo->chan);
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*rflags = flags;
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return chan;
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}
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}
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spin_unlock_irqrestore(&fifo->lock, flags);
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return NULL;
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}
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void
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nvkm_fifo_kevent(struct nvkm_fifo *fifo, int chid)
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{
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nvkm_event_send(&fifo->kevent, 1, chid, NULL, 0);
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}
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static int
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nvkm_fifo_kevent_ctor(struct nvkm_object *object, void *data, u32 size,
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struct nvkm_notify *notify)
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{
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struct nvkm_fifo_chan *chan = nvkm_fifo_chan(object);
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if (size == 0) {
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notify->size = 0;
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notify->types = 1;
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notify->index = chan->chid;
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return 0;
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}
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return -ENOSYS;
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}
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static const struct nvkm_event_func
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nvkm_fifo_kevent_func = {
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.ctor = nvkm_fifo_kevent_ctor,
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};
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static void
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nvkm_fifo_uevent_fini(struct nvkm_event *event, int type, int index)
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{
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struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), uevent);
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fifo->func->uevent_fini(fifo);
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}
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static void
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nvkm_fifo_uevent_init(struct nvkm_event *event, int type, int index)
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{
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struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), uevent);
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fifo->func->uevent_init(fifo);
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}
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static int
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nvkm_fifo_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
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struct nvkm_notify *notify)
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{
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union {
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struct nvif_notify_uevent_req none;
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} *req = data;
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int ret = -ENOSYS;
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if (!(ret = nvif_unvers(ret, &data, &size, req->none))) {
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notify->size = sizeof(struct nvif_notify_uevent_rep);
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notify->types = 1;
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notify->index = 0;
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}
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return ret;
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}
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static const struct nvkm_event_func
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nvkm_fifo_uevent_func = {
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.ctor = nvkm_fifo_uevent_ctor,
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.init = nvkm_fifo_uevent_init,
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.fini = nvkm_fifo_uevent_fini,
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};
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void
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nvkm_fifo_uevent(struct nvkm_fifo *fifo)
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{
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struct nvif_notify_uevent_rep rep = {
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};
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nvkm_event_send(&fifo->uevent, 1, 0, &rep, sizeof(rep));
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}
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static int
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nvkm_fifo_class_new_(struct nvkm_device *device,
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const struct nvkm_oclass *oclass, void *data, u32 size,
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struct nvkm_object **pobject)
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{
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struct nvkm_fifo *fifo = nvkm_fifo(oclass->engine);
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return fifo->func->class_new(fifo, oclass, data, size, pobject);
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}
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static const struct nvkm_device_oclass
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nvkm_fifo_class_ = {
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.ctor = nvkm_fifo_class_new_,
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};
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static int
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nvkm_fifo_class_new(struct nvkm_device *device,
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const struct nvkm_oclass *oclass, void *data, u32 size,
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struct nvkm_object **pobject)
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{
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const struct nvkm_fifo_chan_oclass *sclass = oclass->engn;
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struct nvkm_fifo *fifo = nvkm_fifo(oclass->engine);
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return sclass->ctor(fifo, oclass, data, size, pobject);
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}
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static const struct nvkm_device_oclass
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nvkm_fifo_class = {
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.ctor = nvkm_fifo_class_new,
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};
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static int
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nvkm_fifo_class_get(struct nvkm_oclass *oclass, int index,
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const struct nvkm_device_oclass **class)
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{
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struct nvkm_fifo *fifo = nvkm_fifo(oclass->engine);
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const struct nvkm_fifo_chan_oclass *sclass;
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int c = 0;
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if (fifo->func->class_get) {
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int ret = fifo->func->class_get(fifo, index, oclass);
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if (ret == 0)
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*class = &nvkm_fifo_class_;
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return ret;
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}
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while ((sclass = fifo->func->chan[c])) {
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if (c++ == index) {
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oclass->base = sclass->base;
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oclass->engn = sclass;
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*class = &nvkm_fifo_class;
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return 0;
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}
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}
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return c;
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}
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static void
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nvkm_fifo_intr(struct nvkm_engine *engine)
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{
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struct nvkm_fifo *fifo = nvkm_fifo(engine);
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fifo->func->intr(fifo);
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}
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static int
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nvkm_fifo_fini(struct nvkm_engine *engine, bool suspend)
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{
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struct nvkm_fifo *fifo = nvkm_fifo(engine);
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if (fifo->func->fini)
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fifo->func->fini(fifo);
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return 0;
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}
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static int
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nvkm_fifo_info(struct nvkm_engine *engine, u64 mthd, u64 *data)
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{
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struct nvkm_fifo *fifo = nvkm_fifo(engine);
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switch (mthd) {
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case NV_DEVICE_HOST_CHANNELS: *data = fifo->nr; return 0;
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default:
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if (fifo->func->info)
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return fifo->func->info(fifo, mthd, data);
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break;
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}
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return -ENOSYS;
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}
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static int
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nvkm_fifo_oneinit(struct nvkm_engine *engine)
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{
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struct nvkm_fifo *fifo = nvkm_fifo(engine);
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if (fifo->func->oneinit)
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return fifo->func->oneinit(fifo);
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return 0;
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}
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static void
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nvkm_fifo_preinit(struct nvkm_engine *engine)
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{
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nvkm_mc_reset(engine->subdev.device, NVKM_ENGINE_FIFO, 0);
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}
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static int
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nvkm_fifo_init(struct nvkm_engine *engine)
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{
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struct nvkm_fifo *fifo = nvkm_fifo(engine);
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fifo->func->init(fifo);
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return 0;
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}
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static void *
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nvkm_fifo_dtor(struct nvkm_engine *engine)
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{
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struct nvkm_fifo *fifo = nvkm_fifo(engine);
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void *data = fifo;
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if (fifo->func->dtor)
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data = fifo->func->dtor(fifo);
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nvkm_event_fini(&fifo->kevent);
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nvkm_event_fini(&fifo->uevent);
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mutex_destroy(&fifo->mutex);
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return data;
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}
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static const struct nvkm_engine_func
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nvkm_fifo = {
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.dtor = nvkm_fifo_dtor,
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.preinit = nvkm_fifo_preinit,
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.oneinit = nvkm_fifo_oneinit,
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.info = nvkm_fifo_info,
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.init = nvkm_fifo_init,
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.fini = nvkm_fifo_fini,
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.intr = nvkm_fifo_intr,
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.base.sclass = nvkm_fifo_class_get,
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};
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int
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nvkm_fifo_ctor(const struct nvkm_fifo_func *func, struct nvkm_device *device,
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enum nvkm_subdev_type type, int inst, int nr, struct nvkm_fifo *fifo)
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{
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int ret;
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fifo->func = func;
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INIT_LIST_HEAD(&fifo->chan);
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spin_lock_init(&fifo->lock);
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mutex_init(&fifo->mutex);
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if (WARN_ON(fifo->nr > NVKM_FIFO_CHID_NR))
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fifo->nr = NVKM_FIFO_CHID_NR;
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else
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fifo->nr = nr;
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bitmap_clear(fifo->mask, 0, fifo->nr);
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ret = nvkm_engine_ctor(&nvkm_fifo, device, type, inst, true, &fifo->engine);
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if (ret)
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return ret;
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if (func->uevent_init) {
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ret = nvkm_event_init(&nvkm_fifo_uevent_func, 1, 1,
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&fifo->uevent);
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if (ret)
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return ret;
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}
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return nvkm_event_init(&nvkm_fifo_kevent_func, 1, nr, &fifo->kevent);
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}
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