1 /*==============================================================================
2 Copyright(c) 2017 Intel Corporation
3 
4 Permission is hereby granted, free of charge, to any person obtaining a
5 copy of this software and associated documentation files(the "Software"),
6 to deal in the Software without restriction, including without limitation
7 the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 and / or sell copies of the Software, and to permit persons to whom the
9 Software is furnished to do so, subject to the following conditions:
10 
11 The above copyright notice and this permission notice shall be included
12 in all copies or substantial portions of the Software.
13 
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 OTHER DEALINGS IN THE SOFTWARE.
21 ============================================================================*/
22 
23 #pragma once
24 #include "GmmUtil.h"
25 #include <stdlib.h>
26 
27 #define NON_PAGED_SECTION
28 
29 #define GMM_MALLOC(size)    malloc(size)
30 #define GMM_FREE(p)         free(p)
31 
32 /////////////////////////////////////////////////////////////
33 /// Overrides new() and delete() to work with both user mode
34 /// and kernel mode.
35 /////////////////////////////////////////////////////////////
36 class NON_PAGED_SECTION GmmMemAllocator
37 {
38     public:
operator new(size_t size)39         void* operator new(size_t size)
40         {
41             return GMM_MALLOC(size);
42         }
43 
operator new(size_t size,void * ptr)44         void* operator new(size_t size, void* ptr)
45         {
46             GMM_UNREFERENCED_PARAMETER(size);
47             return ptr;
48         }
49 
operator delete(void * ptr)50         void operator delete(void *ptr)
51         {
52             GMM_FREE(ptr);
53         }
54 
operator delete(void * ptr,void * place)55         void operator delete(void *ptr, void *place)
56         {
57             GMM_UNREFERENCED_PARAMETER(ptr);
58             GMM_UNREFERENCED_PARAMETER(place);
59             // placement delete -- nothing to do.
60         }
61 };
62