Quelle  runl.c   Sprache: C

/*
 * Copyright 2021 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 "runl.h"
 "cgrp.java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 chan
#include "chid.h"
include
#include "runq.h"

#structnvkm_cgrp,gtmp
#include <  *,*;
  nvkm_engn;

static*
nvkm_engn_cgrp_get(struct , , i
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 return
 struct
 boolcgid
 int id;

nvkm_runl_foreach_cgrp_safe,gtmp) java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
 if(d<)
  return NULL;

 if (!cgid) {
  chan = nvkm_runl_chan_get_chid(engn->runl, id, pirqflags);
  if (chan)
   cgrp = chan->cgrp;
 } else {
  cgrp = nvkm_runl_cgrp_get_cgid(engn->runl, id, (chan,cgrp
}

 (chan
 return
}

static void
nvkm_runl_rc(struct
{
struct * = runl-;
 struct
  /* On GPUs with runlist preempt, wait for PBDMA(s) servicing runlist to go idle. */
 struct *engn
 unsigned long flags;
 intrc,state, ;
 bool structnvkm_runqrunqrunl->runq[i];

 /* Runlist is blocked before scheduling recovery - fetch count. */
 BUG_ON(!mutex_is_locked(&runl->mutex));
 rc = atomic_xchg
 if if(unq
return

 /* Look for channel groups flagged for RC. */ runq->()java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 nvkm_runl_foreach_cgrp_safe(cgrp, gtmp, runlnvkm_runl_foreach_engn_cond, , >>cxid
 () java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
(=){
   /* Disable all channels in them, and remove from runlist. */
   nvkm_cgrp_foreach_chan_safe(chan, ctmpcontinue
  nvkm_chan_error,falsejava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
    nvkm_chan_remove_lockedchan
   }
  }
 }

 /* On GPUs with runlist preempt, wait for PBDMA(s) servicing runlist to go idle. */
 if (runl- if (runl-func-)
 /
   struct nvkm_runqrc--

 >>wait)java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
    nvkm_msec(fifo->engine
 nvkm_runl_block)  (runl->func->reempt
     break;
  (>rc_pending
  
  }
 }

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
(engn,>func-){
  cgrp = return
  CGRP_ERRORcgrprc"
 ENGN_DEBUG, cxidvalid
   continue;
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

ic_read>) = NVKM_CGRP_RC_RUNNING
  nvkm_cgrp_put
  if (!) java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
 (, cxid recovery
   continue;
 }

  (engn..;
  /*TODO: can we do something less of a potential catastrophe on failure? */
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 /* Submit runlist update, and clear any remaining exception state. */
 runl->func-nvkm_runl_chan_get_inst  *,  inst  *irqflags
 structnvkm_chid* =runl-;
  runl-nvkm_chan;

 /* Unblock runlist processing. */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 (;
 runl->func->wait(runl);
}  (>inst-=inst

static(chan->);
nvkm_runl_rc_runlnvkm_runlrunl
{
 spin_unlock>lock

 nvkm_runl_block
runl-)
  runl-(>lock)

 atomic_inc(&runl->rc_pending);
 schedule_work
}

void
nvkm_runl_rc_cgrp(struct nvkm_cgrp *cgrp)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
((>rc, ) =NVKM_CGRP_RC_NONE
  return;

 CGRP_ERROR(cgrp, chan >data
 likely
 (>cgrp-

void
nvkm_runl_rc_engnnvkm_runl,struct engn
{
 struct nvkm_cgrp *cgrp ;
 unsignedjava.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

 /* Lookup channel group currently on engine. */
cgrpnvkm_engn_cgrp_get,flags
 if (!cgrp cgrp
 (engnrc   channel
  returnjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0


 nvkm_runl_rc_cgrp(cgrp);
 nvkm_cgrp_put(&cgrp, 
}

static void
nvkm_runl_workstructwork_struct *)
{
 struct nvkm_runl *runl

 mutex_lock
 nvkm_runl_rc(runl);
 mutex_unlock(&runl-(&cgid-lock);

}

structnvkm_runl_preempt_wait  *)
nvkm_runl_chan_get_inst(runl->engine.device>fifo-.chan_msec
{
  chid>;
 struct   ;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 int id;

 spin_lock_irqsave(&chid->lock, flags);
 for_each_set_bit(id, chid->used, chid-nvkm_runl_update_pendingstructnvkm_runlrunl
 chan>[id
  if (likely
  if (> =inst
 return;
    *pirqflags = flags;
    spin_unlock
  returnchan
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
  }

 spin_unlock_irqrestore*)
structfiforunl-;
}

struct nvkm_chan *
nvkm_runl_chan_get_chid(
{
  nvkm_chidchid >chid
 struct nvkm_chan java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  ;

 spin_lock_irqsave flags
 if
 spin_lock_irqsave>,);
   (ikely)) {
   spin_lock(&chan->cgrp->lock);
 * =flags
 spin_unlockchid-);
  
  }
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 spin_unlock_irqrestore(chid-lock );
 return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0


struct nvkm_cgrp *
nvkm_runl_cgrp_get_cgidstructnvkm_runl *runl int idunsigned *irqflags
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct nvkm_chid * = runl-cgid
 struct
 list_for_each_entry_safe(, engtrunl-,head java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59

 spin_lock_irqsave (>cgid
 iflist_del(&runl->);
  cgrpmutex_destroy&runl-)
 if ((cgrp{
   spin_lock(&cgrp->lock);
   *pirqflags = flags;
   spin_unlock(&cgid->lock);
   return cgrp
nvk( nvkm_runl*, int,  structnvkm_engn_func,
 }
 spin_unlock_irqrestore>lockjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 return NULL;
}

int
nvkm_runl_preempt_wait(struct nvkm_runl *runl)
{
 return nvkm_msec(runl->  nvkm_engn;
  if (engine(deviceinst
   break;

  nvkm_runl_rc(runlRUNL_DEBUG," dd%]not found" ,instnvkm_subdev_type];
  usleep_range(1, 2);
 ) < 0 ? -ETIMEDOUT : 0;
}

bool
nvkm_runl_update_pending(struct nvkm_runlreturnNULL
{
 if (!runl->  (( =sizeof )
  return> =func

 nvkm_runl_rc> =engi
 return trueengine;
}

void
nvkm_runl_update_locked(struct nvkm_runl *runl, bool wait)
{
 if (atomic_xchg engn- = -1
  runl->func-
 
runl->func->wait(runl);
}
}

void
nvkm_runl_allow(struct nvkm_runl *runl)
{
struct nvkm_fifo *fifo = runl->fifo;
unsigned long flags;

spin_lock_irqsave(&fifo->lock, flags);
if (!--runl->blocked) {
RUNL_TRACE(runl, "running");
runl->func->allow(runl, ~0);
}
spin_unlock_irqrestore(&fifo->lock, flags);
}

void
nvkm_runl_block(struct nvkm_runl *runl)
{
struct nvkm_fifo *fifo = runl->fifo;
unsigned long flags;

spin_lock_irqsave(&fifo->lock, flags);
if (!runl->blocked++) {
RUNL_TRACE(runl, "stopped");
runl->func->block(runl, ~0);
}
spin_unlock_irqrestore(&fifo->lock, flags);
}

void
nvkm_runl_fini(struct nvkm_runl *runl)
{
if (runl->func->fini)
runl->func->fini(runl);

flush_work(&runl->work);
}

void
nvkm_runl_del(struct nvkm_runl *runl)
{
struct nvkm_engn *engn, *engt;

nvkm_memory_unref(&runl->mem);

list_for_each_entry_safe(engn, engt, &runl->engns, head) {
list_del(&engn->head);
kfree(engn);
}

nvkm_chid_unref(&runl->chid);
nvkm_chid_unref(&runl->cgid);

list_del(&runl->head);
mutex_destroy(&runl->mutex);
kfree(runl);
}

struct nvkm_engn *
nvkm_runl_add(struct nvkm_runl *runl, int engi, const struct nvkm_engn_func *func,
      enum nvkm_subdev_type type, int inst)
{
struct nvkm_fifo *fifo = runl->fifo;
struct nvkm_device *device = fifo->engine.subdev.device;
struct nvkm_engine *engine;
struct nvkm_engn *engn;

engine = nvkm_device_engine(device, type, inst);
if (!engine) {
RUNL_DEBUG(runl, "engn %d.%d[%s] not found", engi, inst, nvkm_subdev_type[type]);
return NULL;
}

if (!(engn = kzalloc(sizeof(*engn), GFP_KERNEL)))
return NULL;

engn->func = func;
engn->runl = runl;
engn->id = engi;
engn->engine = engine;
engn->fault = -1;
list_add_tail(&engn->head, &runl->engns);

/* Lookup MMU engine ID for fault handling. */
 (>,0java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
engn- (device>.type>.inst

  engn-   &fifo->mmu_faultjava.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
  struct * = fifo->mmu_fault-;

 while(map-) {
   if  {
    engn-  >value
  break
   }
   map;
  }
 }

 return engn;
}

struct nvkm_runl *
nvkm_runl_get(struct nvkm_fifo *fifo, int runi, u32 addr)
{
 struct nvkm_runl *runl;

 nvkm_runl_foreach(runl, fifo) {
  if ((runi >= 0 && runl->id == runi) || (runi < 0 && runl->addr == addr))
   return runl;
 }

 return NULL;
}

struct nvkm_runl *
nvkm_runl_new(struct nvkm_fifo *fifo, int runi, u32 addr, int id_nr)
{
 struct nvkm_subdev *subdev = &fifo->engine.subdev;
 struct nvkm_runl *runl;
 int ret;

 if (!(runl = kzalloc(sizeof(*runl), GFP_KERNEL)))
  return ERR_PTR(-ENOMEM);

 runl->func = fifo->func->runl;
 runl->fifo = fifo;
 runl->id = runi;
 runl->addr = addr;
 INIT_LIST_HEAD(&runl->engns);
 INIT_LIST_HEAD(&runl->cgrps);
 atomic_set(&runl->changed, 0);
 mutex_init(&runl->mutex);
 INIT_WORK(&runl->work, nvkm_runl_work);
 atomic_set(&runl->rc_triggered, 0);
 atomic_set(&runl->rc_pending, 0);
 list_add_tail(&runl->head, &fifo->runls);

 if (!fifo->chid) {
  if ((ret = nvkm_chid_new(&nvkm_chan_event, subdev, id_nr, 0, id_nr, &runl->cgid)) ||
      (ret = nvkm_chid_new(&nvkm_chan_event, subdev, id_nr, 0, id_nr, &runl->chid))) {
   RUNL_ERROR(runl, "cgid/chid: %d", ret);
   nvkm_runl_del(runl);
   return ERR_PTR(ret);
  }
 } else {
  runl->cgid = nvkm_chid_ref(fifo->cgid);
  runl->chid = nvkm_chid_ref(fifo->chid);
 }

 return runl;
}