Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 1 | /* |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 2 | * Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved. |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 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 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 | |
| 37 | namespace gralloc { |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 38 | class PmemUserspaceAlloc : public IMemAlloc { |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 39 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 40 | public: |
| 41 | class Allocator: public android::RefBase { |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 42 | public: |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 43 | 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 Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 48 | }; |
| 49 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 50 | virtual int alloc_buffer(alloc_data& data); |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 51 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 52 | virtual int free_buffer(void *base, size_t size, |
| 53 | int offset, int fd); |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 54 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 55 | virtual int map_buffer(void **pBase, size_t size, |
| 56 | int offset, int fd); |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 57 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 58 | virtual int unmap_buffer(void *base, size_t size, |
| 59 | int offset); |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 60 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 61 | virtual int clean_buffer(void*base, size_t size, |
| 62 | int offset, int fd); |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 63 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 64 | PmemUserspaceAlloc(); |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 65 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 66 | ~PmemUserspaceAlloc(); |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 67 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 68 | 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 | |
| 79 | class 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 Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 101 | |
| 102 | |
Naseer Ahmed | 29a2681 | 2012-06-14 00:56:20 -0700 | [diff] [blame] | 103 | }; |
Iliyan Malchev | 202a77d | 2012-06-11 14:41:12 -0700 | [diff] [blame] | 104 | |
| 105 | } |
| 106 | #endif /* GRALLOC_PMEMALLOC_H */ |