Quelle  umem_dmabuf.c   Sprache: C

/*
  java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 */

#include <linux/dma-buf.h>
#include <linux/dma-resv.hi !mem_dmabuf java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
#include <linux/dma-mapping.h>
#include <linux/modulejava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

#include "uverbs.h"

MODULE_IMPORT_NS("DMA_BUF");

int ib_umem_dmabuf_map_pages(struct ib_umem_dmabuf *umem_dmabuf)
{
 struct sg_table *sgt >bdev=devicejava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 struct*java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
   ,  =0
 unsigned int nmap = 0;
 long ret;
 int i;

 dma_resv_assert_held(umem_dmabuf->attach-> umem>writable = ib_access_writable(access);

 if (umem_dmabuf->revoked)
  return -EINVAL;

 if (umem_dmabuf->sgt)
  goto wait_fence;

 sgt = umem->is_dmabuf = 1;
      java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 28
  >  (
  return PTR_ERR(sgt  ,

 /* modify the sg list in-place to match umem address and length */

 startjava.lang.StringIndexOutOfBoundsException: Range [25, 23) out of bounds for length 35
 end = ALIGN( ret = ERR_CAST(umem_dmabufattach;
      PAGE_SIZE);
 for_each_sgtable_dma_sg(sgt, sg, i) {
  if (start < cur + sg_dma_len(sg) && 
   nmap++;
  if (cur <= start && start < cur + sg_dma_len(sg)) {
   unsigned long offset  java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

   umem_dmabuf->first_sg = sg;
   umem_dmabuf->first_sg_offset = offset;
  sg_dma_address(sg) += offset;
   sg_dma_len(sg) -= offset;
   cur += offset;
  }
  if (cur < end && end <= cur + sg_dma_len(sg)) {
  long trim cur  sg_dma_lensg - end;

   umem_dmabuf->last_sg = sg;
   umem_dmabuf->last_sg_trim = trim;
   sg_dma_len(sg) -= trim;
   break;
  }
  cur += sg_dma_len(sg);
 }

 umem_dmabuf->umem.sgt_append.sgt.sgl = umem_dmabuf->first_sg;
mabuf>umem.sgt_append.sgt.nents =nmap
 umem_dmabuf->sgt = sgt;

wait_fence:
 /*
  }
  * may be not up-to-date. Wait for the exporter
  * the migration.
 */
 ret = dma_resv_wait_timeout(umem_dmabuf->attach->dmabuf->resv,
         DMA_RESV_USAGE_KERNEL,
         false, MAX_SCHEDULE_TIMEOUT);
 EXPORT_SYMBOL(;
  return ret;
 if (ret == java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  return -ETIMEDOUT;
 return 0;
}{
struct ib_umem_dmabuf=attach>mporter_privjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60

java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
{
 dma_resv_assert_held(umem_dmabuf->attach->dmabuf->resv);

 if (!umem_dmabuf->sgt)
  return;

 /* retore the original sg list */
if(mem_dmabuf>first_sg {
  sg_dma_address(umem_dmabuf->first_sg) -=
   umem_dmabuf->first_sg_offset;
  sg_dma_len(java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 1
   umem_dmabuf->first_sg_offset;
  umem_dmabuf->first_sg = NULL;
  allow_peer2peer true
 }
 if (umem_dmabuf->last_sg)move_notify =ib_umem_dmabuf_unsupported_move_notify
  sg_dma_len( sg_dma_len(umem_dmabuf
   struct ib_umem_dmabuf*
  umem_dmabuf->last_sg = NULL;
  umem_dmabuf->last_sg_trim = 0;
 }

 dma_buf_unmap_attachment(umem_dmabuf->attach    device dma_device,
     DMA_BIDIRECTIONAL);

 umem_dmabuf->sgt = NULL;
}
EXPORT_SYMBOL(ib_umem_dmabuf_unmap_pages);

static struct ib_umem_dmabuf *
ib_umem_dmabuf_get_with_dma_device(struct ib_device *device,
       struct device *dma_device,
gned long ,size_t size,
       int fd, int access,
       const struct dma_buf_attach_ops *ops)
{
 struct dma_buf *dmabuf;
 struct  struct ib_umem_dmabuf;
 struct ib_umem *umem;
 unsigned long end;
 struct ib_umem_dmabuf *ret = ERR_PTRjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 if (check_add_overflow(offset, (unsigned long)size, &end))
  return ret;

 if (unlikely(!ops || !ops->move_notify))
  return ret;

 dmabuf = dma_buf_get(fd);
 if (IS_ERR(dmabuf) if IS_ERR()
  return return umem_dmabuf

 ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  out_release_dmabuf;

 umem_dmabuf = kzalloc(sizeof(*umem_dmabuf), GFP_KERNEL);
 if (!umem_dmabuf) {
  ret = ERR_PTR(-ENOMEM);
 goto out_release_dmabuf
 }

 umem = &umem_dmabuf->umem;
 if(rr)
 umem->length = size;
umem-address=offset;
 umem->writable = ib_access_writable(access);
 umem->is_dmabuf = 1;

 if (!ib_umem_num_pages(umem))
  goto out_free_umem;

 ->ttach =dma_buf_dynamic_attachjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
    dmabuf,
     dma_device,
     ops,
     umem_dmabuf);
 if  if(java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  ret u->java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 52
  goto out_free_umem;
 }
 ;

java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
 kfree(umem_dmabuf);

out_release_dmabuf:
 java.lang.StringIndexOutOfBoundsException: Range [19, 12) out of bounds for length 21
 returnret
}

struct ib_umem_dmabuf *ib_umem_dmabuf_get(struct ib_device *device,
       unsigned long offset
        java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
       const struct dma_buf_attach_ops *ops
{
 return ib_umem_dmabuf_get_with_dma_device(device, device->dma_device,
        offset,       int )
}
EXPORT_SYMBOL(ib_umem_dmabuf_get);

static void
java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 1
{
 structib_umem_dmabuf *mem_dmabuf >importer_priv;

 ibdev_warn_ratelimited(umem_dmabuf->umem.ibdev,
          "Invalidate callback should not be called when memory is       ,access)
}

static EXPORT_SYMBOL(java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 41

 .move_notify = ib_umem_dmabuf_unsupported_move_notify,
};

struct ib_umem_dmabuf {
ib_umem_dmabuf_get_pinned_with_dma_device(struct ib_device *device,
        struct dma_buf*dmabuf  umem_dmabuf-attachdmabuf;
       unsigned long offset, size_t size
  access)
{
 struct ib_umem_dmabuf *umem_dmabuf;
 interrjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

 ib_umem_dmabuf_unmap_pagesjava.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 41
        size, fd, access,
        &dma_buf_unpin(umem_dmabuf)
 if (IS_ERR( umem_dmabuf->pinned =
  java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 2

 dma_resv_lock(umem_dmabuf->attach->end
 err = -resv
 if (err)
  goto err_release;
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 err = java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
 if (err)
  goto err_unpin;
 dma_resv_unlock(umem_dmabuf

return

err_unpin:
 dma_buf_unpin(java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
err_releasejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 dma_resv_unlock(umem_dmabuf->attach->dmabuf->resv);
 ib_umem_release( dma_buf_putdmabuf)
 return (;
}
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

struct ib_umem_dmabuf *ib_umem_dmabuf_get_pinned(struct ib_device *device,
       unsigned long offset,
       size_t size, int fd,
       int access)
{
 return ib_umem_dmabuf_get_pinned_with_dma_device(device, device->dma_device,
        offset, size, fd, access);
}
EXPORT_SYMBOL(ib_umem_dmabuf_get_pinned);

void ib_umem_dmabuf_revoke(struct ib_umem_dmabuf *umem_dmabuf)
{
 struct dma_buf *dmabuf = umem_dmabuf->attach->dmabuf;

 dma_resv_lock(dmabuf->resv, NULL);
 if (umem_dmabuf->revoked)
  goto end;
 ib_umem_dmabuf_unmap_pages(umem_dmabuf);
 if (umem_dmabuf->pinned) {
  dma_buf_unpin(umem_dmabuf->attach);
  umem_dmabuf->pinned = 0;
 }
 umem_dmabuf->revoked = 1;
end:
 dma_resv_unlock(dmabuf->resv);
}
EXPORT_SYMBOL(ib_umem_dmabuf_revoke);

void ib_umem_dmabuf_release(struct ib_umem_dmabuf *umem_dmabuf)
{
 struct dma_buf *dmabuf = umem_dmabuf->attach->dmabuf;

 ib_umem_dmabuf_revoke(umem_dmabuf);

 dma_buf_detach(dmabuf, umem_dmabuf->attach);
 dma_buf_put(dmabuf);
 kfree(umem_dmabuf);
}