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Diffstat (limited to 'vlib/vlib/physmem.h')
-rw-r--r-- | vlib/vlib/physmem.h | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/vlib/vlib/physmem.h b/vlib/vlib/physmem.h deleted file mode 100644 index 9e7d52a6226..00000000000 --- a/vlib/vlib/physmem.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * 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_h -#define included_vlib_physmem_h - -typedef struct -{ - uword start, end, size; -} vlib_physmem_region_t; - -typedef struct -{ - vlib_physmem_region_t virtual; - - uword log2_n_bytes_per_page; - - /* 1 << log2_n_bytes_per_page - 1. */ - uword page_mask; - - u64 *page_table; - - /* is fake physmem */ - u8 is_fake; -} vlib_physmem_main_t; - -always_inline u64 -vlib_physmem_offset_to_physical (vlib_physmem_main_t * pm, uword o) -{ - uword page_index = o >> pm->log2_n_bytes_per_page; - ASSERT (o < pm->virtual.size); - ASSERT (pm->page_table[page_index] != 0); - return (vec_elt (pm->page_table, page_index) + (o & pm->page_mask)); -} - -always_inline int -vlib_physmem_is_virtual (vlib_physmem_main_t * pm, uword p) -{ - return p >= pm->virtual.start && p < pm->virtual.end; -} - -always_inline uword -vlib_physmem_offset_of (vlib_physmem_main_t * pm, void *p) -{ - uword a = pointer_to_uword (p); - uword o; - - ASSERT (vlib_physmem_is_virtual (pm, a)); - o = a - pm->virtual.start; - - /* Offset must fit in 32 bits. */ - ASSERT ((uword) o == a - pm->virtual.start); - - return o; -} - -always_inline void * -vlib_physmem_at_offset (vlib_physmem_main_t * pm, uword offset) -{ - ASSERT (offset < pm->virtual.size); - return uword_to_pointer (pm->virtual.start + offset, void *); -} - -#endif /* included_vlib_physmem_h */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |