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Iliyan Malchev202a77d2012-06-11 14:41:12 -07001/*
Naseer Ahmed29a26812012-06-14 00:56:20 -07002 * Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
Iliyan Malchev202a77d2012-06-11 14:41:12 -07003
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 Code Aurora Forum, Inc. 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
30#ifndef GRALLOC_PMEMALLOC_H
31#define GRALLOC_PMEMALLOC_H
32
33#include <linux/ion.h>
34#include <utils/RefBase.h>
35#include "memalloc.h"
36
37namespace gralloc {
Naseer Ahmed29a26812012-06-14 00:56:20 -070038class PmemUserspaceAlloc : public IMemAlloc {
Iliyan Malchev202a77d2012-06-11 14:41:12 -070039
Naseer Ahmed29a26812012-06-14 00:56:20 -070040 public:
41 class Allocator: public android::RefBase {
Iliyan Malchev202a77d2012-06-11 14:41:12 -070042 public:
Naseer Ahmed29a26812012-06-14 00:56:20 -070043 virtual ~Allocator() {};
44 virtual ssize_t setSize(size_t size) = 0;
45 virtual size_t size() const = 0;
46 virtual ssize_t allocate(size_t size, uint32_t flags = 0) = 0;
47 virtual ssize_t deallocate(size_t offset) = 0;
Iliyan Malchev202a77d2012-06-11 14:41:12 -070048 };
49
Naseer Ahmed29a26812012-06-14 00:56:20 -070050 virtual int alloc_buffer(alloc_data& data);
Iliyan Malchev202a77d2012-06-11 14:41:12 -070051
Naseer Ahmed29a26812012-06-14 00:56:20 -070052 virtual int free_buffer(void *base, size_t size,
53 int offset, int fd);
Iliyan Malchev202a77d2012-06-11 14:41:12 -070054
Naseer Ahmed29a26812012-06-14 00:56:20 -070055 virtual int map_buffer(void **pBase, size_t size,
56 int offset, int fd);
Iliyan Malchev202a77d2012-06-11 14:41:12 -070057
Naseer Ahmed29a26812012-06-14 00:56:20 -070058 virtual int unmap_buffer(void *base, size_t size,
59 int offset);
Iliyan Malchev202a77d2012-06-11 14:41:12 -070060
Naseer Ahmed29a26812012-06-14 00:56:20 -070061 virtual int clean_buffer(void*base, size_t size,
62 int offset, int fd);
Iliyan Malchev202a77d2012-06-11 14:41:12 -070063
Naseer Ahmed29a26812012-06-14 00:56:20 -070064 PmemUserspaceAlloc();
Iliyan Malchev202a77d2012-06-11 14:41:12 -070065
Naseer Ahmed29a26812012-06-14 00:56:20 -070066 ~PmemUserspaceAlloc();
Iliyan Malchev202a77d2012-06-11 14:41:12 -070067
Naseer Ahmed29a26812012-06-14 00:56:20 -070068 private:
69 int mMasterFd;
70 void* mMasterBase;
71 const char* mPmemDev;
72 android::sp<Allocator> mAllocator;
73 pthread_mutex_t mLock;
74 int init_pmem_area();
75 int init_pmem_area_locked();
76
77};
78
79class PmemKernelAlloc : public IMemAlloc {
80
81 public:
82 virtual int alloc_buffer(alloc_data& data);
83
84 virtual int free_buffer(void *base, size_t size,
85 int offset, int fd);
86
87 virtual int map_buffer(void **pBase, size_t size,
88 int offset, int fd);
89
90 virtual int unmap_buffer(void *base, size_t size,
91 int offset);
92
93 virtual int clean_buffer(void*base, size_t size,
94 int offset, int fd);
95
96 PmemKernelAlloc(const char* device);
97
98 ~PmemKernelAlloc();
99 private:
100 const char* mPmemDev;
Iliyan Malchev202a77d2012-06-11 14:41:12 -0700101
102
Naseer Ahmed29a26812012-06-14 00:56:20 -0700103};
Iliyan Malchev202a77d2012-06-11 14:41:12 -0700104
105}
106#endif /* GRALLOC_PMEMALLOC_H */