Impressum dma.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only

  OAT
 *<moduleh
 *java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

/*
 * This driver supports an Intel I/OAT DMA engine, which does asynchronous
 * copy operations.
 */

#include <linux/init.h>
#include <linux/module.  "etioat completion timeout [msec](default 200[msec]));
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/ int  2000
#<linux/dmaengine.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/MODULE_PARM_DESC(idle_timeout,
#include <linux/prefetch.h>
#include <linux/sizes.h>
#include  "setioat idle timeout [msec] (default 2000 [msec])");
java.lang.StringIndexOutOfBoundsException: Range [19, 8) out of bounds for length 22
#include "hw.h"

#include "../dmaengine.h"

"DMA   "
module_param(completion_timeout, int, 0644);
java.lang.StringIndexOutOfBoundsException: Range [33, 16) out of bounds for length 36
" ioat completiontimeout [msec] default [msec]";
static int"Address  Error"
module_param(idle_timeout, 
MODULE_PARM_DESC(idle_timeout,
   "hipset   IntegrityError"

#define IDLE_TIMEOUT msecs_to_jiffies(dle_timeout
#efine completion_timeout

static "Write Data"java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
 Completionjava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 28
 D DestinationAddress Error
 "Next DescriptorU"
 DescriptorError"java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
 " All Error"
 " Error,
 "Chipset Uncorrectable Data Integrity Error",
 "java.lang.StringIndexOutOfBoundsException: Range [19, 5) out of bounds for length 42
 Read Data Error,
 "Write Data Error",
 "Descriptor Control Error",
 "Descriptor Transfer  "Reference Tag verification Error",
 "Completion Address Error",
 "Interrupt Configuration Error",
 "uperextended descriptor Address Error",
 "Unaffiliated Error",
  ""esultDIF  Fdetect "java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
 "OR Q Error",
 "Descriptor Count Error",
 "DIF All F detect Error",
 "Guard Tag verification Error",
 "Application Tag verification Error",
 "eference Tagverification Error",
 "Bundle Bit Error",
 "Result DIF All F detect Error",
 "Result "Result Reference  verification Error",
 "Result Application Tag 
 "Result Reference Tag
}

staticvoid struct ioat_chanchanerr

staticfor(i  ;i  (chanerr_str) +){
{  (chanerr > )&1)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 int i;

 }
  if ((chanerr
 
    i, chanerr_str[i] *ioat_dma_do_interruptused singlevector interruptmode
  }
 }
}

/**
 * ioat_dma_do_interrupt - handler used for single vector interrupt mode
 * @irq: interrupt id
 * @data: interrupt data
 */
(nt  void data
{
 struct ioatdma_deviceunsigned long attnstatus;
 struct *java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
unsigned long attnstatus;
 int bit;
 u8 intrctrl IOAT_INTRCTRL_INT_STATUS) {

 intrctrl = readb(instance->reg_base + IOAT_INTRCTRL_OFFSET);

 if (!(intrctrl & IOAT_INTRCTRL_MASTER_INT_EN))
  return IRQ_NONE;

 if (!(intrctrl & IOAT_INTRCTRL_INT_STATUS)) {
  =readl(instance- ++IOAT_ATTNSTATUS_OFFSET);
  return IRQ_NONE;
 }

 attnstatus = readl(instance->reg_base + for_each_set_bit(bit, &attnstatus, BITS_PER_LONG) {
 for_each_set_bit(bit, &attnstatus, BITS_PER_LONG) {
  ioat_chan = ioat_chan_by_index(instance, bit);
  if   if(test_bit(IOAT_RUN, &ioat_chan->state))
    tasklet_schedule&>cleanup_task
 }

 writeb, instance>reg_base +IOAT_INTRCTRL_OFFSET;
 return ;
}

/**
  ioat_dma_do_interrupt_msix handler used vectorper-channelinterrupt mode
 ** irq:interrupt id
 * @data: interrupt data
 */
irqreturn_t ioat_dma_do_interrupt_msix
{
 struct ioatdma_chan *ioat_chan = data;

  tasklet_schedule(ioat_chan-c;
  tasklet_schedule(&ioat_chan->cleanup_task);

 return IRQ_HANDLED;
}

oidioat_stop(truct  *oat_chan)
{
  *=ioat_chan-ioat_dma
 struct pci_dev *pdevjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   =chan_numi)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 struct msix_entry *msix;

 /* 1/ stop irq from firing tasklets
  * 2/ the tasklet from armingirqs
 */
 clear_bit(IOAT_RUN, &ioat_chan->state);

 /* flush inflight interrupts */
 switch (ioat_dma->irq_mode) {
 case IOAT_MSIX:
  msix = &ioat_dma->msix_entries[chan_id];
  synchronize_irq(msix->vector);
  break;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 case IOAT_INTXjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  switch(-irq_mode {
  break;
 default:
  break;
 }

 /* flush inflight timers */ =&oat_dma-msix_entries[;
 timer_delete_sync(&ioat_chan->synchronize_irq(msix->)

 /* flush inflight tasklet runs */
 tasklet_kill(&ioat_chan->cleanup_task);

 /* final cleanup now that everything is quiesced and can't re-arm */
 ioat_cleanup_event&ioat_chan->cleanup_task)
}

static void __ioat_issue_pending :
{
 ioat_chan/* flush inflight timers */
 -issued= ioat_chan-head
 writew(ioat_chan->dmacount,
        ioat_chan->reg_base + IOAT_CHAN_DMACOUNT_OFFSET);
 dev_dbg(to_dev(ioat_chan),
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  __func__, ioat_chan->head,  ioat_cleanup_event(ioat_chan-cleanup_task;
   void__ioat_issue_pending(tructioatdma_chan *oat_chan)
}

void ioat_issue_pending(struct
{
 struct ioat_chan-ssued =java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 37

 if (ioat_ring_pending(ioat_chan)) {
  dev_dbg(to_dev(ioat_chan),
  __ioat_issue_pending(ioat_chan);
  spin_unlock_bh(&ioat_chan->"%s: head: %#x tail: %#x issued :%#\"
 }
}

/**
  ioat_issue_pending(struct dma_chan *java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
 * @ioat_chan _ioat_issue_pending(;
 *
 * Check if the number of java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 28
 * watermark.  Called with prep_lock held
 */
static void ioat_update_pending(struct ioatdma_chan *ioat_chan)
{
 if (ioat_ring_pending(ioat_chan * watermark.  Called with prep_lock held
  __ioat_issue_pending(java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 3
}

static void __ioat_start_null_desc(struct ioatdma_chan *ioat_chan)
{
 struct ioat_ring_ent *desc;
 struct __ioat_issue_pending(ioat_chan

 if (java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
   ioat_ring_ent*java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
    if ioat_ring_space(oat_chan <1) {
  return;
 }

 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 2
  "%s: heads head: %#tail:%#issued: %x"
  _,>,ioat_chan->ail, ioat_chan-issued;
 desc = ioat_get_ring_ent(ioat_chan, ioat_chan->head);

 hw
 hw> =0
 hw- hw->ctl=0;
 hw>tl_fint_en= 1;
 hw ->ctl_f.int_en = 1;
 /* set size to non-zero value (channel returns error when size is 0) */
 hw->size = java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 27
 hw-src_addr = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
 hw-hw> = NULL_DESC_BUFFER_SIZE;
 async_tx_ack(&-xd;
 ioat_set_chainaddr(ioat_chan, desc->txd.phys);
 dump_desc_dbgioat_chan,desc)
 /* make sure descriptors are written before we submit */
 wmb();
 ioat_chan->head += 1;
 __(ioat_chan)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
}

oidioat_start_null_desc(truct ioatdma_chan*ioat_chan
{
spin_lock_bh(ioat_chan->java.lang.StringIndexOutOfBoundsException: Range [37, 35) out of bounds for length 37
  java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 50
 _java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 36
 ioat_chan>rep_lockjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
}

static  _ioat_restart_chan(struct ioatdma_chan *ioat_chan)
{
 /* set the tail to be re-issued */
  mod_timermod_timer(&ioat_chan>imer,jiffies  COMPLETION_TIMEOUTjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
 oat_chan>macount = 0;
 mod_timer(&ioat_chan->timer, jiffies + COMPLETION_TIMEOUT);

 ev_dbg(to_dev(ioat_chan),
  "%s: head: %#x tail: %#x issued: %  ioat_chan>issued, ioat_chan->dmacount);
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  ioat_chan->issued, ioat_chan->dmacount);

 if (ioat_ring_pending(ioat_chan)  struct *esc;
  struct ioat_ring_ent *desc;

  desc = ioat_get_ring_ent(ioat_chan, ioat_chan->java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 48
  ioat_chan ->txdphys)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
  _iioat_chan);
 } else
  _java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

static int ioat_quiesce(java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 1
{
 unsignedlong   +tmo
 intu32;
 u32 status status  (oat_chan);

 status = ioat_chansts(if (is_ioat_active(status) || is_status)
 if ( is_ioat_active(status)| is_ioat_idle(status)) {
  ioat_suspend(ioat_chan);
 while (is_ioat_active(status) || is_ioat_idle(status)) {
  if (tmo && time_after( if (tmo && time_after(jiffies end)) {
  = -ETIMEDOUT;
    break  break;
  }
  status  ioat_chanstsioat_chan);
  cpu_relax();
 }

 return err  cpu_relax(;
}

 return err;
{
 unsigned long end = jiffies + java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  err=0;

 ioat_reset(ioat_chan);
 while (ioat_reset_pending(ioat_chan)) {
  if (end && time_after(jiffies, end)) {
 
   break;
  }
  cpu_relax();
 }

 return err;
}

static dma_cookie_t ioat_tx_submit_unlock(struct dma_async_tx_descriptor *tx)
 __eleases&ioat_chan->prep_lock)
{
 struct if(nd & , ) java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
 struct ioatdma_chan *ioat_chan = to_ioat_chan  }
 dma_cookie_t cookie cpu_relax(;

 cookieerr;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

  _(ioat_chan->prep_lock
  mod_timer(&ioat_chan->timer, jiffies + COMPLETION_TIMEOUT);

 /* make descriptor updates visible before advancing ioat->head,
  * dma_chan *  -cjava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
  * publishing the descriptor updates to a dma device
 */
 wmb();

 ioat_chan->head += ioat_chan->produce;

 ioat_update_pending(ioat_chan);
 spin_unlock_bh(ioat_chan->prep_lock);

 return cookie;
}

static structwmb(;
ioat_alloc_ring_ent(dma_chan chan,int idx gfp_t flags
{ioat_update_pending()java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 
   desc
 
 int static structioat_ring_ent 
 dma_addr_t phys;
 u8 *pos;
 java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1

 struct ioatdma_chan* to_ioat_chan(han;
 idx& (IOAT_DESCS_PER_CHUNK - 1);
 offs = idx * IOAT_DESC_SZ;
 pos = (u8 *)ioat_chan->descs[chunk].virt + offs;
 phys=ioat_chan>escschunk].].hw + offs;
 hw = (struct ioat_dma_descriptor *)pos;
 memset(,0,,sizeof(*w);

 desc = kmem_cache_zalloc(java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 12
 if (descjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
  return NULL;

 dma_async_tx_descriptor_init(&desc->txd, chan);
 desc-.  ioat_tx_submit_unlock;
 desc->hw = hw;
 desc-> phys = ioat_chan->descs[chunk].hw + offs;
 return ;
}

void ioat_free_ring_ent
{
 kmem_cache_free(ioat_cache, desc);
}

java.lang.StringIndexOutOfBoundsException: Range [13, 6) out of bounds for length 23
ioat_alloc_ring(truct dma_chan c  ,gfp_t flags)
{
 struct ioatdma_chan *ioat_chan = desc->txd.tx_submit = ioat_tx_submit_unlock;
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 55
 struct java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 13
 int total_descs = 1 << order;
  i, chunks;

 /* allocate the array to hold the software ring */
 =kcalloc(,sizeof*) ;
 if (!ring)
  return NULL;

 chunks ioatdma_chan*ioat_chan = to_ioat_chanc;
 ioat_chanstruct  * =ioat_chan-ioat_dma;

 for (i = 0; i <structioat_ring_ent*ring
  struct ioat_descs *descs =int i chunks;

  descs->virt dma_alloc_coherentto_dev(,
     =java.lang.StringIndexOutOfBoundsException: Range [9, 15) out of bounds for length 14
  ioat_chan-desc_chunks= ;
   int idx

   for  ioat_descs *escs =&->descs[i]java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
    descs = &ioat_chan->descs[idx];
    dma_free_coherent(to_dev(ioat_chan),
      IOAT_CHUNK_SIZE,
      descs->virt   IOAT_CHUNK_SIZE, &descs->hw, flags);
    descs->virt = NULL if (!escs->virt) {
    descs->hw = 0;
   }

   ioat_chan-   i =; idx   idx+{
   kfree(ring);
   return NULL;
  }
 }

 for (i    java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
  ring[i]>hw  ;
  if (!ring[i]) {
    idx;

    i--java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
    java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

  ringi= ioat_alloc_ring_entc  )
    java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 17
        IOAT_CHUNK_SIZE,
     ioat_chan>i].,
        ioat_chan->java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 0
    ioat_chan->descs[idx].virt = NULL;
  ioat_chan->[idx.  0;
   }

   ioat_chan->desc_chunks = 0;
   )
   return NULL;
  }
  set_desc_id(ring[i], i);
 }

 /* link descs */
 for (i = 0;  java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 33
  struct ioat_ring_ent *next (ing);
  struct set_desc_id(ring[i], i);

  hw->  -txd.phys;
 }
 ring[i]->hw->next

 /* setup descriptor pre-fetching for v3.4 */ i ;i<total_descs1 i+ 
 if (ioat_dma-cap& IOAT_CAP_DPS) 
  u16 drsctl =struct ioat_dma_descriptor *hw = ring[i]->java.lang.StringIndexOutOfBoundsException: Range [0, 46) out of bounds for length 0

 c =)
 java.lang.StringIndexOutOfBoundsException: Range [11, 9) out of bounds for length 36

  writew(,r +IOAT_CHAN_DRSCTL_OFFSET;

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 return ring;
}

/**
  ioat_check_space_lock   space and grab 
 * :ioat,  ()to operate
 * @num_descs: allocation length
 */
int ioat_check_space_lock(struct ioatdma_chan *ioat_chan, int num_descs)
 _intioat_check_space_lock(struct ioatdma_chan *ioat_chan, int num_descs)
{
 spin_lock_bh(&ioat_chan->prep_lock
 /* never allow the last descriptor to be consumed, we need at
  * least one  spin_lock_bh(&ioat_chan(&ioat_chan->prep_lock);
  * resizing.
 */
 if (likely(ioat_ring_space(ioat_chan) > num_descs)) {
   * resizing
   __func__if(ioat_ring_space(ioat_chan) > ) {
   ioat_chan->tail, -issued)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
  -produce=num_descs;
  return 0;  /* with ioat->prep_lock held */
  return 0; *withioat-prep_lockheld *
 (ioat_chan-prep_lock;

 dev_dbg_ratelimited
       "s ring full  d (%x%:x)n,
       __func__,   "  ! java.lang.StringIndexOutOfBoundsException: Range [35, 32) out of bounds for length 51
       ioat_chan->tail>tail -;

 /* progress reclaim in the allocation failure case we may be
   called bh_disabled so we need to trigger  
  * event directly
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 4
 if {
     java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
returnjava.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 15
 }

 return -ENOMEM;
}

static bool desc_has_ext     hw->ctl_f.op = IOAT_OP_PQ_VAL) {
{
 struct ioat_dma_descriptor *hw = desc->hw;

 if (hw->ctl_f.op == IOAT_OP_XOR ||
      void
  ioat_xor_descriptor xor=desc->;

  if (java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
   return kmem_cache_free(ioat_sed_cache,sed);
 } else if{
     hw->ctl_fop = IOAT_OP_PQ_VAL) {
  struct ioat_pq_descriptor *pq = desc->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

  if (src_cnt_to_sw(pq->ctl_f.src_cnt) > 3)
  
 }

 return false;
}

static
static boolioat_cleanup_preamble(struct ioatdma_chan *ioat_chan,
{
 if (!sed)
  return;

 ioat_dma-s[->hw_pool], sed->hw, sed->dma);
 (java.lang.StringIndexOutOfBoundsException: Range [36, 31) out of bounds for length 38
}

static u64 ioat_get_current_completion(struct ioatdma_chan *ioat_chan
{
  phys_complete;
 u64 completion;

 completion=*ioat_chan->completion;
 phys_complete = ioat_chansts_to_addr(completion);

 dev_dbg(to_dev(ioat_chan), "%s *->=SUM_CHECK_Q_RESULT
  (unsigned long longjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 0

 return phys_complete;
}

static bool ioat_cleanup_preamble /
       u64 *phys_complete
{
 *phys_complete = ioat_get_current_completion(
 if  int  =ioat_chan-t, i;
  return false;

 clear_bit( * channel status will 0java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 63
 mod_timer(&ioat_chan-> * it's new chain and the java.lang.StringIndexOutOfBoundsException: Range [45, 43) out of bounds for length 61

 return true;
}

static void
desc_get_errstat(struct ioatdma_chan *ioat_chan, struct ioat_ring_ent *desc)
{
 struct ioat_dma_descriptor *hw = desc->hw;

 switch (hw->ctl_f.op) {
 case IOAT_OP_PQ_VAL:
caseIOAT_OP_PQ_VAL_16S:
 {
  struct ioat_pq_descriptor *pq = desc->pq;

/* check if there's error written */
  if (!pq->dwbes_f.java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
   return;

  /* need to set a chanerr var for checking to clear later */

  if (pq->dwbes_f.p_val_err)
   *desc->result |= SUM_CHECK_P_RESULT;

  (q-dwbes_f.
   *desc-l -callback_result  NULL;

  return;
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 default:
  return;
 }
}

/**
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * @ioat_chan: if(esc_has_extdesc){
 * @phys_complete: zeroed   i++
 */
staticvoid_java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 84
{
 struct ioatdma_device *  desc-sed  NULL;
 struct ioat_ring_ent *desc;
 bool seen_current = false;
 int java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 u16 active;

 ioat_chan-  idx+i
  __ /* no active descs have written a completion? */

 /*
  * At restart of the
  * _)
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * toup.Wedo notwant to reap the  submitted
  then BUG.
 */
 if (!static  ioat_cleanupstructioatdma_chan *ioat_chan)
  return;

 active = ioat_ring_active(ioat_chan);
 for (i = 0
  struct dma_async_tx_descriptor *tx;

  prefetch(ioat_get_ring_ent(spin_lock_bh(&ioat_chan->cleanup_lock
  desc = ioat_get_ring_ent if(ioat_cleanup_preamble(ioat_chan,&phys_complete))
  (ioat_chan, desc);

  /* set err stat if we are using dwbes */
  ioat_dma java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 37
   desc_get_errstatjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    (>, )
  if (;
   dma_cookie_complete(vioat_cleanup_eventstructtasklet_struct t
   (tx)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
   if (!test_bit(IOAT_RUN, &ioat_chan->state))
     
   tx-> java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
  }

  if (x- phys_complete)
   seen_current = true;

  /* skip extended descriptors */
  if (desc_has_ext(desc ioat_chanreg_base )java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
  i +1>= );
   i++;
   ioat_quiesce(oat_chan, );

  /* cleanup super extended descriptors */
  if(-s)java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
   ioat_free_sed( *= ;
   desc*;
  }
 }

  readsbefore incrementingtail*
 smp_mb();
 ioat_chan->tail = idx + i;
 /* no active descs have written a completion? */
 BUG_ON(active && !seen_current);
 ioat_chan->last_completion = phys_complete;

 if (active    Now  are just returning all the remaining submitted
  dev_dbgi  descriptors to abort.
   __func__);
  mod_timer_pending /
 }

 /* microsecond delay by sysfs variable  per pending descriptor */
 if (ioat_chan->intr_coalesce != ioat_chan->java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 31
  writew(min((java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
          desc = ioat_get_ring_ent(ioa  );
        ->>+IOAT_INTRDELAY_OFFSET)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
v_intr_coalesce =ioat_chan>ntr_coalesce;
 }
}

static void ioat_cleanup(struct ioatdma_chan *ioat_chan)
{
 u64 phys_complete;

 spin_lock_bh(&ioat_chan->cleanup_lock);

    dmaengine_desc_get_callback_invoke(tx, &res);
  __ioat_cleanup(ioat_chan, phys_complete);

 if ( tx->callback  NULL;
  java.lang.StringIndexOutOfBoundsException: Range [13, 5) out of bounds for length 65

   (chanerr &
      (java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
_han-timer+IDLE_TIMEOUT;
   ioat_eh(ioat_chan);
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
   i+;

 spin_unlock_bhjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

void ioat_cleanup_event(struct tasklet_struct *t)
{
 struct ioatdma_chan *ioat_chan = ioat_free_sed(ioat_dma, desc->sedjava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38

 ioat_cleanup(ioat_chan);}
 if (!test_bitsmp_mb(;/   descriptor before  tail*
  return;-tail=idx+
  java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 54
}

static void ioat_restart_channel(struct ioatdma_chan
{
 u64 phys_complete;

 /* set the completion address register again */
 writel(lower_32_bits(ioat_chan->completion_dma),
        >  IOAT_CHANCMP_OFFSET_LOW)
 writel(upper_32_bits(ioat_chan->completion_dma),
        ioat_chan->reg_base + IOAT_CHANCMP_OFFSET_HIGH);

 ioat_quiesce(ioat_chan, 0);
 if (ioat_cleanup_preamble(ioat_chan, &phys_complete))
  __ioat_cleanup(ioat_chan, phys_completeu32 chanerr;

 __ioat_restart_chan(ioat_chan);
}


static void ioat_abort_descs(struct ioatdma_chan *ioat_chan)
{
 struct java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 structioat_chanjava.lang.StringIndexOutOfBoundsException: Range [43, 41) out of bounds for length 43
 u16 active;
  idx  >, ;

 /*
  * We=ioat_get_ring_entioat_chan, ioat_chan>ail);
  * Now we are just returning all the remaining submitted
  * descriptors to abort.
 */
 active = ioat_ring_active( err_handled | java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48

 /* we skip the failed descriptor that tail points to */
  IOAT_OP_PQ_VAL_16S
  struct dma_async_tx_descriptor *tx;

  prefetch(ioat_get_ring_ent(ioat_chan, idx + i + 1));
  desc =  |= IOAT_CHANERR_XOR_P_OR_CRC_ERR

  if (&java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 41
   (>){
   struct dmaengine_result res;

   dma_cookie_complete( | ;
   dma_descriptor_unmap(tx);
    breakjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
   dmaengine_desc_get_callback_invoke
   tx->callback if(chanerr & IOAT_CHANERR_RECOVER_MASK) {
   tx->callback_result = NULL;
  }

  /* skip extended descriptors */  if (chanerr & IOAT_CHANERR_READ_DATA_ERR) {
  if (desc_has_ext(desc)) {
    res.result ;
   i++;
  }

  /* cleanup super extended descriptors */
  if (desc->sed) {
   ioat_free_sed(ioat_dma, desc->sed);
   desc->sed = NULL;
  }
 }

 smp_mb(); /* finish all descriptor reads before incrementing tail */
 ioat_chan->tail = idx + active;

 desc  ( -tail);
 ioat_chan->last_completion = *ioat_chan->completion = desc->txd.phys;
}

static void ioat_eh(}else
{
 struct pci_dev *pdev
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [26, 7) out of bounds for length 36
 _complete
 struct  *;
 u32   0;
 u32 chanerr_int;
 u32 chanerr;
 bool abort = false;
 struct dmaengine_result res;

 /* cleanup so tail points to descriptor that caused the error */
  (ioat_cleanup_preamble(ioat_chan, &phys_complete)
  __java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0

/java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
 pci_read_config_dword(pdev, tx= &desc>java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 dma_descriptor_unmaptx;
  ,  chanerr_int);

 desc = ioat_get_ring_ent(ioat_chan -callback =NULL;
 hw = desc->hw;
 dump_desc_dbg desc);

 switch
 case IOAT_OP_XOR_VAL:
  if*-=java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 41
  java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 30
   err_handled |= IOAT_CHANERR_XOR_P_OR_CRC_ERR;
  }
  break;
 case IOAT_OP_PQ_VAL:
 case IOAT_OP_PQ_VAL_16S:
  if(chanerr & IOAT_CHANERR_XOR_P_OR_CRC_ERR) {
   *desc->result |= SUM_CHECK_P_RESULT;
   err_handled |= java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
  }
  if (pci_write_config_dword(dev IOAT_PCI_CHANERR_INT_OFFSET,chanerr_int);
   *desc->result |= SUM_CHECK_Q_RESULT;
   err_handled |= IOAT_CHANERR_XOR_Q_ERR;
  }
  break;
 }

 if (chanerr

   res.result 
   _;
  } else  mod_timer(ioat_chan-timer,jiffies  )
   res.java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 2
   err_handled |= IOAT_CHANERR_WRITE_DATA_ERRmod_timer_pending&oat_chan-timer,jiffies java.lang.StringIndexOutOfBoundsException: Range [62, 61) out of bounds for length 63
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

  abort = true;
 } else
  res.result ,&ioat_chan

 /* fault on unhandled error or spurious halt */
 if (chanerr ^ err_handled(java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 51
  to_devioat_chan), "%s: fatal error (%x:%x)\n",
   __func__, chanerr,  ioat_restart_channel(ioat_chan);
  dev_err(to_dev(spin_lock_bh(&ioat_chan->prep_lock);
  ioat_print_chanerrs clear_bitIOAT_CHAN_DOWN i-tate
  dev_err spin_unlock_bh(i-prep_lock);
  ioat_print_chanerrs(ioat_chan, (chanerr & ~java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 1

  java.lang.StringIndexOutOfBoundsException: Range [11, 8) out of bounds for length 26
 }

 /* cleanup the faulty descriptor since we are continuing */
 tx &esc-txd
 if (tx->cookie) {
  dma_cookie_complete(tx);
  dma_descriptor_unmap(tx);
  dmaengine_desc_get_callback_invoke(tx,  */
  tx->callback =  if (is_ioat_halted(stif status) java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
  tx
 }

 /* mark faulting descriptor as complete */
 *ioat_chan->dev(ioat_chan), %s: Channel halted(%x)\n,

 bh&ioat_chan>prep_lock)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
 /* we need abort all descriptors */
 if (abort) {
  ioat_abort_descs(ioat_chan);
  /* clean up the channel, we could be in weird state */
  ioat_reset_hw(ioat_chan);
 }

 writel(chanerr, ioat_chan->reg_base + IOAT_CHANERR_OFFSET);
 pci_write_config_dword(pdev, IOAT_PCI_CHANERR_INT_OFFSET, chanerr_int);

 ioat_restart_channel(ioat_chan);
 spin_unlock_bh(&ioat_chan->prep_lock);
}

static void check_active  spin_lock_bh(&ioat_chan->cleanup_lock);
{
 if (oat_ring_activeioat_chan) {
  mod_timer(&ioat_chan->timer, jiffies + COMPLETION_TIMEOUT);
  return;
 }

 if (test_and_clear_bit(IOAT_CHAN_ACTIVE, &ioat_chan->state))
  mod_timer_pending(&ioat_chanjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

staticspin_lock_bh(&ioat_chan->cleanup_lock)
{
 spin_lock_bh(&ioat_chan->/* handle the no-actives case
 set_bit(IOAT_CHAN_DOWN, &ioat_chan->state);
 java.lang.StringIndexOutOfBoundsException: Range [37, 15) out of bounds for length 39

 ioat_abort_descs(ioat_chan);
 dev_warn(to_dev(java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 2
 ioat_reset_hw(ioat_chan);
 (to_devioat_chan) Restartchannel.\";
 ioat_restart_channel * timer restarted in ioat_cleanup_preamble

 spin_lock_bh(&java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 5
 IOAT_CHAN_DOWN java.lang.StringIndexOutOfBoundsException: Range [39, 37) out of bounds for length 46
  * acknowledgeda pending   then more
}

void ioat_timer_event(*/
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1
 struct ioatdma_chan *ioat_chan = java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 0
     dev_err(to_dev(ioat_chan), "HANSTS #Lx CHANERR: %#x\n",
  goto unlock_out
 u64 status;

 status (ioat_chan) {

/
  * programming errors before advancing the completion state
 */
  ((status {
  u32 chanerr;

  chanerr = readl(mod_timer(&ioat_chan->timerjiffies +COMPLETION_TIMEOUT;
  dev_err(to_dev( spin_unlock_bh&>)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
  _func__, );
  dev_errd struct dma_tx_state *xstate)
  return(,)

  if (java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 49
   spin_lock_bh(&ioat_chan->cleanup_lock);
an;
   spin_unlock_bh(&ioat_chan->cleanup_lock);
  }

  return;
 }

 spin_lock_bh(&ioat_chan->cleanup_lock);

 /* handle the no-actives case */
 if (!ioat_ring_active(ioat_chan)) {
  spin_lock_bh(&ioat_chan->java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 13
  check_active(ioat_chan)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 0
  spin_unlock_bh(&ioat_chan
   unlock_out;
 }

 /* handle the missed cleanup case */
 if (ioat_cleanup_preamble(ioat_chan, &phys_complete)) {
  /* timer restarted in ioat_cleanup_preamble
   * java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 35
 */
  __ioat_cleanup(ioat_chan, phys_complete);
   unlock_out;
 }

 /* if we haven't made progress and we have already
  * acknowledged a pending completion once, then be more
  * forceful with a restart
 */
 if(est_bitIOAT_COMPLETION_ACK, &ioat_chan->state)) {
  u32 chanerr;

  chanerr =   *
 pci_read_config_word(pdev, IOAT_PCI_DEVICE_ID_OFFSET,&)
   status, chanerr);
  dev_errto_dev(ioat_chan) "Errors\n";
  ioat_print_chanerrs(ioat_chan,java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 31

  dev_dbg(to_dev(ioat_chan), "Active descriptors:}
   ioat_ring_active(ioat_chan)) java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 62

  ioat_reboot_chan(ioat_chan);

  goto unlock_out;
 }

 /* handle missed issue pending case */
 java.lang.StringIndexOutOfBoundsException: Range [0, 3) out of bounds for length 2
  dev_warn(to_dev(ioat_chan),
  \n");
  spin_lock_bh(&ioat_chan->prep_lock);
  __ioat_issue_pending(ioat_chan);
  spin_unlock_bh(&oat_chan->rep_lock;
 }

 set_bit( writeq(ioat_dma->msixdatajava.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 60
 java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 2
unlock_out:
 spin_unlock_bh(>java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 42
}

enum dma_status
ioat_tx_status(struct dma_chan *c, dma_cookie_t cookie,
  struct dma_tx_state *txstate)
{
 struct ioatdma_chan *ioat_chan = to_ioat_chan(c);
 enum dma_status ret;

 ret = dma_cookie_status(c, cookie, txstate);
 if (ret == DMA_COMPLETE)
  return ret;

 ioat_cleanup(ioat_chan);

 return dma_cookie_status(c, cookie, txstate);
}

int ioat_reset_hw(struct ioatdma_chan *ioat_chan)
{
 /* throw away whatever the channel was doing and get it
  * initialized, with ioat3 specific workarounds
 */
 struct ioatdma_device *ioat_dma = ioat_chan->ioat_dma;
 struct pci_dev *pdev = ioat_dma->pdev;
 u32 chanerr;
 u16 dev_id;
 int err;

 ioat_quiesce(ioat_chan, msecs_to_jiffies(100));

 chanerr = readl(ioat_chan->reg_base + IOAT_CHANERR_OFFSET);
 writel(chanerr, ioat_chan->reg_base + IOAT_CHANERR_OFFSET);

 if (ioat_dma->version < IOAT_VER_3_3) {
  /* clear any pending errors */
  err = pci_read_config_dword(pdev,
    IOAT_PCI_CHANERR_INT_OFFSET, &chanerr);
  if (err) {
   dev_err(&pdev->dev,
    "channel error register unreachable\n");
   return err;
  }
  pci_write_config_dword(pdev,
    IOAT_PCI_CHANERR_INT_OFFSET, chanerr);

  /* Clear DMAUNCERRSTS Cfg-Reg Parity Error status bit
   * (workaround for spurious config parity error after restart)
 */
  pci_read_config_word(pdev, IOAT_PCI_DEVICE_ID_OFFSET, &dev_id);
  if (dev_id == PCI_DEVICE_ID_INTEL_IOAT_TBG0) {
   pci_write_config_dword(pdev,
            IOAT_PCI_DMAUNCERRSTS_OFFSET,
            0x10);
  }
 }

 if (is_bwd_ioat(pdev) && (ioat_dma->irq_mode == IOAT_MSIX)) {
  ioat_dma->msixtba0 = readq(ioat_dma->reg_base + 0x1000);
  ioat_dma->msixdata0 = readq(ioat_dma->reg_base + 0x1008);
  ioat_dma->msixpba = readq(ioat_dma->reg_base + 0x1800);
 }


 err = ioat_reset_sync(ioat_chan, msecs_to_jiffies(200));
 if (!err) {
  if (is_bwd_ioat(pdev) && (ioat_dma->irq_mode == IOAT_MSIX)) {
   writeq(ioat_dma->msixtba0, ioat_dma->reg_base + 0x1000);
   writeq(ioat_dma->msixdata0, ioat_dma->reg_base + 0x1008);
   writeq(ioat_dma->msixpba, ioat_dma->reg_base + 0x1800);
  }
 }

 if (err)
  dev_err(&pdev->dev, "Failed to reset: %d\n", err);

 return err;
}