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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.
*/
/*
* physmem.h: virtual <-> physical memory mapping for VLIB buffers
*
* Copyright (c) 2008 Eliot Dresselhaus
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#ifndef included_vlib_physmem_funcs_h
#define included_vlib_physmem_funcs_h
clib_error_t *vlib_physmem_init (vlib_main_t * vm);
clib_error_t *vlib_physmem_shared_map_create (vlib_main_t * vm, char *name,
uword size, u32 log2_page_sz,
u32 numa_node, u32 * map_index);
vlib_physmem_map_t *vlib_physmem_get_map (vlib_main_t * vm, u32 index);
always_inline void *
vlib_physmem_alloc_aligned (vlib_main_t * vm, uword n_bytes, uword alignment)
{
clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
return clib_pmalloc_alloc_aligned (pm, n_bytes, alignment);
}
/* By default allocate I/O memory with cache line alignment. */
always_inline void *
vlib_physmem_alloc (vlib_main_t * vm, uword n_bytes)
{
return vlib_physmem_alloc_aligned (vm, n_bytes, CLIB_CACHE_LINE_BYTES);
}
always_inline void *
vlib_physmem_alloc_from_map (vlib_main_t * vm, u32 physmem_map_index,
uword n_bytes, uword alignment)
{
clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
vlib_physmem_map_t *map = vlib_physmem_get_map (vm, physmem_map_index);
return clib_pmalloc_alloc_from_arena (pm, map->base, n_bytes,
CLIB_CACHE_LINE_BYTES);
}
always_inline void
vlib_physmem_free (vlib_main_t * vm, void *p)
{
if (p)
clib_pmalloc_free (vm->physmem_main.pmalloc_main, p);
}
always_inline u64
vlib_physmem_get_page_index (vlib_main_t * vm, void *mem)
{
clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
return clib_pmalloc_get_page_index (pm, mem);
}
always_inline u64
vlib_physmem_get_pa (vlib_main_t * vm, void *mem)
{
clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
return clib_pmalloc_get_pa (pm, mem);
}
always_inline clib_error_t *
vlib_physmem_last_error (struct vlib_main_t * vm)
{
return clib_error_return (0, "unknown error");
}
#endif /* included_vlib_physmem_funcs_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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