1 /*
2  * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
3 
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *   * Redistributions of source code must retain the above copyright
8  *     notice, this list of conditions and the following disclaimer.
9  *   * Redistributions in binary form must reproduce the above
10  *     copyright notice, this list of conditions and the following
11  *     disclaimer in the documentation and/or other materials provided
12  *     with the distribution.
13  *   * Neither the name of The Linux Foundation nor the names of its
14  *     contributors may be used to endorse or promote products derived
15  *     from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 #ifndef GRALLOC_ALLOCCONTROLLER_H
30 #define GRALLOC_ALLOCCONTROLLER_H
31 
32 #define SZ_2M 0x200000
33 #define SZ_1M 0x100000
34 #define SZ_4K 0x1000
35 
36 /* TODO: Move this to the common makefile */
37 #ifdef MASTER_SIDE_CP
38 #define SECURE_ALIGN SZ_4K
39 #else
40 #define SECURE_ALIGN SZ_1M
41 #endif
42 
43 namespace gralloc {
44 
45 struct alloc_data;
46 class IMemAlloc;
47 class IonAlloc;
48 
49 class IAllocController {
50 
51     public:
52     /* Allocate using a suitable method
53      * Returns the type of buffer allocated
54      */
55     virtual int allocate(alloc_data& data, int usage) = 0;
56 
57     virtual IMemAlloc* getAllocator(int flags) = 0;
58 
59     virtual bool isDisableUBWCForEncoder();
60 
~IAllocController()61     virtual ~IAllocController() {};
62 
63     static IAllocController* getInstance(void);
64 
65     private:
66     static IAllocController* sController;
67 
68 };
69 
70 class IonController : public IAllocController {
71 
72     public:
73     virtual int allocate(alloc_data& data, int usage);
74 
75     virtual IMemAlloc* getAllocator(int flags);
76 
isDisableUBWCForEncoder()77     virtual bool isDisableUBWCForEncoder() {
78         return mDisableUBWCForEncode;
79     }
80 
81     IonController();
82 
83     private:
84     IonAlloc* mIonAlloc;
85     bool mDisableUBWCForEncode;
86     void allocateIonMem();
87 
88 };
89 } //end namespace gralloc
90 #endif // GRALLOC_ALLOCCONTROLLER_H
91