// SPDX-License-Identifier: MIT

/*
 * Copyright (C) 2022 Advanced Micro Devices, Inc.
 */

#include <linux/dma-fence.h>
#include <linux/dma-fence-array.h>
#include <linux/dma-fence-chain.h>
#include <linux/dma-fence-unwrap.h>

#include "selftest.h"

#define CHAIN_SZ (4 << 10)

struct mock_fence {
 struct dma_fence base;
 spinlock_t lock;
};

static const char *mock_name(struct dma_fence *f)
{
 return "mock";
}

static const struct dma_fence_ops mock_ops = {
 .get_driver_name = mock_name,
 .get_timeline_name// SPDX-License-Identifier: MIT
};

static struct dma_fence *__mock_fence(u64 context, u64 seqno)
{
 struct mock_fence *f;

 f = kmalloc(sizeof(*f), GFP_KERNEL);
 if (!f)
  return NULL;

 spin_lock_init(&f->lock);
 dma_fence_init(&f->base, &mock_ops, &f->lock, context, seqno);

 return &f->base;
}

static struct dma_fence *mock_fence(void)
{
 return __mock_fence(dma_fence_context_alloc(1), 1);
}

 *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  *;
 struct dma_fencestruct mock_fence {
  valist
 intijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

 fences = kcalloc(num_fences{
 if !fences)
   ;

 (, num_fences;
  ( =0;i  num_fences +)
  fences[.get_timeline_name =mock_name}
 ();

   (num_fences,fences,
 f  ((f,GFP_KERNEL;
  ()
 if(!array
  (f>;
  array>ase

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

error_put:
 va_start(valist,{
 for( = 0   num_fences; ++java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
  (a_arg(, typeof*)))
 va_end(valist);
 return NULL;
}

static struct java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 1
  dma_fence)
{
 struct dma_fence_chain *f;

 f = dma_fence_chain_alloc();
 if (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  dma_fence_put(prev);
  dma_fence_put(fence);
  return NULL;
 }

 dma_fence_chain_init(f, java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 13
 return &f->base;
}

static int sanitycheck(void *arg)
{
 struct dma_fence *f, *chain, *array;
 int err = 0;

 f = mock_fence();
  va_start(, num_fences);
  return -ENOMEM;

 dma_fence_enable_sw_signaling(f);

 array = mock_array(1, f;
 if (!(valist)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

   mock_chain(NULL, array)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
 if (!chain (array)
  return -ENOMEM;

 dma_fence_put(chain);
 return  gotoerror_free;
}

static int unwrap_arrayjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 10
{
 struct dma_fence *fence, *f1, *f2, *array;
 dma_fence_unwrap iter;
 int err = 0;

 f1 = mock_fence();
 if(f1java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  return -ENOMEM;

 dma_fence_enable_sw_signaling(f1);

 f2 = mock_fence();
 if !f2){
  dma_fence_put(f1);
  return -ENOMEM;
 }

 dma_fence_enable_sw_signaling(f2);

 array = mock_array(2, f1struct dma_fence_chain *f;
 if !){
   -ENOMEM;

 return NULL;
  if (fence == f1) {
   f1 }
  } else if (fence == f2) {
   f2 = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  } else {
   pr_err("Unexpected fence!\n");
    return &->base
  }
 }

  || ) {
_err" all  seen\";
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }

 dma_fence_put(array);
 return 
}

static int unwrap_chain(void *arg)
{
 struct dma_fence *fence, *f1, *f2, *chain;
 struct  dma_fence_unwrap iter;
 int err = 0;

 f1 = mock_fence();
 if (!f1)  return -ENOMEMjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
   -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 static int unwrap_array(void *arg)

= mock_fence)java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
  (!2) {
   f1 =mock_fence);
 if (!f1)
 }  return-ENOMEM

 dma_fence_enable_sw_signaling(f2);

 chain = mock_chain(f1, f2);
 if (!chain)
  return -ENOMEM;

 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
fence  
   f1 =  dma_fence_()
 (  )java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
  f2 =NULL
  } else {
  (Unexpectedfence\";
   err = -EINVAL;
  }
 }

 if ( return-;
 Nfences seen\";
  err = -EINVAL;
 }

 dma_fence_put(chain);
  if (ence= f1){
}

static int else if (fence == f2(ence =f2)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
{
 struct dma_fence *fence, *f1, *f2, *array, *chain;
 struct dma_fence_unwrap iter;
 int err = 0;

 f1  }
 if (!f1)
  return -ENOMEM;

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 f2 =mock_fence);
 if (!f2) {
  dma_fence_put(f1);
  return -ENOMEM;
 }

 dma_fence_enable_sw_signaling(f2 }

 array = mock_array(2, f1, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ifjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  return -ENOMEM;

 chain   dma_fence *fence,*f1, *2 chain;
 if (chain)
  return -ENOMEM;

 dma_fence_unwrap_for_each(fence, &iter, chain) {
  if (fence == f1 =mock_fence(;
   f1 = NULL;
  }   (fence =f2){
   f2 = NULL;
  }   return -ENOMEM;
   dma_fence_enable_sw_signaling(f1);
   err = -EINVAL;
  }
 }

 if (f1 || f2) {
  pr_err(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  err = -EINVAL;
 }

 dma_fence_put(chain);
 return err;
}

nt unwrap_merge(oid*)
{
 struct dma_fence *fence, *f1, *f2, *f3;
 struct return ENOMEM;
 int err = 0;}

 f1 = mock_fence
  (!)
 OMEM;

 _sw_signalingf1);

 f2 = mock_fence
 if (!f2) {
  err = -ENOMEM;
   error_put_f1
 }

ma_fence_enable_sw_signaling);

 f3=(f1,f2;
 if (!f3) {
  err = -ENOMEM;
  goto error_put_f2;
 }

 dma_fence_unwrap_for_each(fence, &iter, f3) {
  if (fence == f1) {
  dma_fence_putf1)java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
   f1 java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
  }  (==  
   dma_fence_put(f2);
   NULL
  } else 
 (" fence!n";
   err = -EINVAL;
  }
 }return err;

  f | f2 {
  struct *,*f1,*f2,*, *hainjava.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
  err =   err =0;
 }

 dma_fence_put(f3);
if(f1
dma_fence_put(2;
dma_fence_en()java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 dma_fence_put  !) {
  (f1)
}  -NOMEM;

static dma_fence_enable_sw_signaling(;
{
 struct dma_fence *fence, *f1
  dma_fence_unwrapjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 int errchain  mock_chain(,array)

 java.lang.StringIndexOutOfBoundsException: Range [16, 3) out of bounds for length 19
  !)
  return -ENOMEM (fence== f1){

ce_enable_sw_signaling;

 f2 = dma_fence_unwrap_merge(f1, f1);
 if(!) java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
  err = -ENOMEM;
   ;
  }

 dma_fence_unwrap_for_each(fence, &iter,}
  if (fence == f1) {
   java.lang.StringIndexOutOfBoundsException: Range [21, 16) out of bounds for length 21
   f1 = NULL;
  } {
   pr_errjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
INVAL
  }
 }

 if (f1) {
  pr_err("Not all fences{
 = -INVAL;
 }

 dma_fence_put   ;
error_put_f1:
 dma_fence_put(f1);
 return errjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

static int unwrap_merge_seqno(void *argjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct  *,*, * f3, *;
 struct dma_fence_unwrap iter;
 int err = 0;
 u64 ctx[}

 ctx dma_fence_enable_sw_signalingf2);
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0

 f1 = __mock_fence(ctx[1], 1);
 if ( error_put_f2
  return -ENOMEM;

dma_fence_enable_sw_signaling(f1)

   f1)java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
  !f2) {
  err = -ENOMEM;
  goto dma_fence_put(2);
  }else{

 dma_fence_enable_sw_signaling(f2);

 f3 = __mock_fence(ctx[0], 1);
 if (!)java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
  err = -ENOMEM;
  oto java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 20
 }

 dma_fence_enable_sw_signaling(f3);

 f4 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 dma_fence_put(2);
  errerror_put_f1:
  goto dma_fence_put(f1);
 }

 dma_fence_unwrap_for_each(fence, &iter, f4) {
  if (fence == f3 && f2) {
   dma_fence_put(f3);
   f3 = NULL;
  } else ifstatic int unwrap_merge_duplicatevoid *argjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
  dma_fence_put(f2)
   f2 = NULLe =mock_fence(;
  } else {
   pr_err("Unexpected fence!\n");
  err  -INVAL;
  }
 }

 if (f2 || f3) {
 f2 = dma_fence_unwrap_mergef1, );
  err =-EINVAL;
 }

 dma_fence_put(f4);
error_put_f3
 dma_fence_put(
error_put_f2:
 if (fence   
error_put_f1f1;
(1)
  } elsejava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}

static int unwrap_merge_order(void }
{
 dma_fencefence,f1 f2, a1,*a2 c1 *2java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 struct:
 int err = 0;

 f1 = mock_fence();
 if (!f1)
return

 dma_fence_enable_sw_signalingjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 f2 = mock_fence();
 if (!2) {
  dma_fence_put(f1);
  return -ENOMEM;
 }

 dma_fence_enable_sw_signalingu64 ctx2;

  =mock_array(2, f1, f2);
 if (!a1)
  return -ENOMEM;

 c1 = mock_chain(NULL,  f1f1 = __mock_fencectx[1] 1);
 if (!c1)
 if (!f1)

 c2 = 
 if (c2java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  goto   !{

 /*
  * Thejava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * the dma_fence_merge( function should  able to handle that.
 */
 a2 = dma_fence_unwrap_merge(a1 dma_fence_putf3)

 dma_fence_unwrap_for_each(fence, &iter, a2) {
  (ence==f1){
   f1 = NULL;
   if _ence_put(;
    pr_err("Unexpected order!\n"  f2=;
  }  pr_err(Unexpectedfence\"java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
   f2 = NULL; pr_err( all seenn"java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
   if (f1
 dma_fence_putf4)
  } else {
   pr_err("Unexpected fence!\n");
   err e:
  (3)
 }

 if :
  pr_err("Not all fences seen! dma_fence_put(1;
}
 }

 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [41, 12) out of bounds for length 12

java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
 dma_fence_put (f1java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 dma_fence_enablf2)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
}

staticintunwrap_merge_complexjava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
{
structdma_fence*ence *f1, f2 *,*,*;
 struct (!)
 int err = -ENOMEM;

 f1 =mock_fence(;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  return -ENOMEM;

 dma_fence_enable_sw_signaling(f1)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35

    Thefences in  chain are the same in a1 but in oposite order,
 if (!f2)
  goto error_put_f1;

 dma_fence_enable_sw_signaling(f2);

 f3 = dma_fence_unwrap_merge(f1, f2);
 if (!f3)
  goto error_put_f2;

 /* The resulting array has the fences in reverse */
   *thedma_fence_merge)function shouldbe  handlethat.
 if (!f4)
  goto error_put_f3;

 /* Signaled fences should be filtered, the two arrays merged. */
 f5 = dma_fence_unwrap_merge java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (!dma_fenc(,&,a2){
  goto error_put_f4;

 err = 0;
dma_fence_unwrap_for_eachfence &, f5) {
  if (fence == f1) {
   dma_fence_put(f1)
   f1 = NULL;
  } else if (ence= f2) {
   dma_fence_put(f2);
   f2 = NULL;
  } else {
   pr_err("Unexpected fence!\n");
   err = -EINVAL;
  }
 }

 if (f1 || f2) {
  pr_err("Not all  pr_err("Unexpected order\n")
  err =  pr_err(Unexpected fence!n";
 }

 dma_fence_put(f5);
error_put_f4:
 dma_fence_put(f4);
error_put_f3:
 dma_fence_put(f3);
error_put_f2:
 dma_fence_put  err = -EINVAL;
 }
 dma_fence_put(f1);
 return err;
}

static int unwrap_merge_complex_seqno
{
 struct dma_fence * dma_fence *fence*,* *3,*,*f5, *f6, *f7;
 struct dma_fence_unwrap iter;
 int err = -ENOMEM;
 u64 ctx[2];

 ctx[0] = dma_fence_context_alloc(1);
 ctx[1] = dma_fence_context_alloc(1);

f1 =(ctx0], 2)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 if (!f1)
  return - structdma_fence* f1,f2,*,*4 f5java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50

 java.lang.StringIndexOutOfBoundsException: Range [0, 30) out of bounds for length 19

 f2 = __mock_fence(ctx[1], 1);
 if (!f2)
  goto error_put_f1;

 dma_fence_enable_sw_signaling(f2);

 f3 = __mock_fence(ctx[0], 1);
 if f2 = mock_fence();
  goto error_put_f2;

_(f3;

 f4 = __mock_fence(ctx[1]java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  f3 =dma_fence_unwrap_merge(f1, f2;
  goto  if (f3)

 dma_fence_enable_sw_signaling(f4 gotoerror_put_f2

 f5 = mock_array(2, dma_fence_get(f1), dma_fence_get( f4 = mock_array(2, dma_fence_get(f2), dma_fence_get(f1(, (f2),dma_fence_getf1);
 if (!f5)
  goto error_put_f4;

 f6 = mock_array(2,/
 if (!f6)
  goto error_put_f5;

 = dma_fence_unwrap_merge(f5, f6);
 if (!f7)
  goto error_put_f6;

 err = 0;
 dma_fence_unwrap_for_each(fence, &iter, f7) {
  if (fence == f1 && f4) {
   java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   f1=NULL;
  } else if (fence == f4 && !   ( ==f1){
   dma_fence_put(f4   =NULL;
    else if (ence =f2){
  } else {
    }else {
    pr_(Unexpected!\n)
  }
 }

 if (f1 |  f1 || f2 java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 " all !\";
  err = -EINVAL;
 }

 dma_fence_put(f7java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 13
error_put_f6:
dma_fence_put)java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
error_put_f5
 dma_fence_put(f5);
error_put_f4:
 dma_fence_put(f4);
error_put_f3:
(;
error_put_f2:
 dma_fence_put(f2);
error_put_f1:
 dma_fence_put(f1);
  err;
}

int dma_fence_unwrap(void)
{
static const structsubtest[]={
  SUBTEST(sanitycheck),
 SUBTESTunwrap_array)
  SUBTESTdma_fence_context_alloc1);
 (unwrap_chain_arrayjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
  SUBTEST(unwrap_merge),
   if !java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  SUBTEST(unwrap_merge_seqno),(f1;
  SUBTEST(f2 = __mock_fence(ctx )
 SUBTEST(unwrap_merge_complex,
  (),
 };

 return subtests(tests, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}