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authorDamjan Marion <damarion@cisco.com>2018-10-25 15:56:04 +0200
committerDamjan Marion <dmarion@me.com>2018-10-25 15:21:59 +0000
commitc04e2b06ed8d2038e42b663b9d24ebc8fb719893 (patch)
tree6fffcb19a906b78c2f1867b7f40fb06395c26225 /src/vppinfra/bihash_template.c
parentdc8d35036f1d06193035ff4b6f161f2c1c17c35a (diff)
pmalloc: don't lock 4K pages if we don't have access to pagemap
Without pagemap access only way to do DMA to physmem is by using IOMMU. In such case VFIO will take care for preventing paging of such memory so we don't need to lock here. Change-Id: Ica9c20659fba3ea3c96202eb5f7d29c43b313fa9 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vppinfra/bihash_template.c')
0 files changed, 0 insertions, 0 deletions
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/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 *------------------------------------------------------------------
 * svm_test.c -- brain police
 *------------------------------------------------------------------
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <netinet/in.h>
#include <signal.h>
#include <pthread.h>
#include <unistd.h>
#include <time.h>
#include <fcntl.h>
#include <string.h>
#include <vppinfra/clib.h>
#include <vppinfra/vec.h>
#include <vppinfra/hash.h>
#include <vppinfra/bitmap.h>
#include <vppinfra/fifo.h>
#include <vppinfra/time.h>
#include <vppinfra/mheap.h>
#include <vppinfra/heap.h>
#include <vppinfra/pool.h>

#include "svm.h"


int
main (int argc, char **argv)
{
  svm_region_t *root_rp, *rp;
  svm_map_region_args_t *a = 0;

  vec_validate (a, 0);

  root_rp = svm_region_init ();

  ASSERT (root_rp);

  a->name = "/qvnet";
  a->size = (4 << 10);

  rp = svm_region_find_or_create (root_rp, a);

  ASSERT (rp);

  *((u32 *) rp->data_base) = 0xdeadbeef;
  svm_region_unmap (root_rp, rp);

  fformat (stdout, "exiting...\n");

  exit (0);
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */