| /** |
| * Copyright (c) 2019, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef RPCMEM_H |
| #define RPCMEM_H |
| |
| #include "AEEStdDef.h" |
| |
| /** |
| * RPCMEM_DEFAULT_HEAP |
| * Dynamicaly select the heap to use. This should be ok for most usecases. |
| */ |
| #define RPCMEM_DEFAULT_HEAP -1 |
| |
| |
| /** |
| * RPCMEM_DEFAULT_FLAGS should allocate memory with the same properties |
| * as the ION_FLAG_CACHED flag |
| */ |
| #ifdef ION_FLAG_CACHED |
| #define RPCMEM_DEFAULT_FLAGS ION_FLAG_CACHED |
| #else |
| #define RPCMEM_DEFAULT_FLAGS 1 |
| #endif |
| |
| /** |
| * RPCMEM_FLAG_UNCACHED |
| * ION_FLAG_CACHED should be defined as 1 |
| */ |
| #define RPCMEM_FLAG_UNCACHED 0 |
| #define RPCMEM_FLAG_CACHED RPCMEM_DEFAULT_FLAGS |
| |
| /** |
| * examples: |
| * |
| * heap 22, uncached, 1kb |
| * rpcmem_alloc(22, 0, 1024); |
| * rpcmem_alloc(22, RPCMEM_FLAG_UNCACHED, 1024); |
| * |
| * heap 21, cached, 2kb |
| * rpcmem_alloc(21, RPCMEM_FLAG_CACHED, 2048); |
| * #include <ion.h> |
| * rpcmem_alloc(21, ION_FLAG_CACHED, 2048); |
| * |
| * just give me the defaults, 2kb |
| * rpcmem_alloc(RPCMEM_DEFAULT_HEAP, RPCMEM_DEFAULT_FLAGS, 2048); |
| * rpcmem_alloc_def(2048); |
| * |
| * give me the default flags, but from heap 18, 4kb |
| * rpcmem_alloc(18, RPCMEM_DEFAULT_FLAGS, 4096); |
| * |
| */ |
| #define ION_SECURE_FLAGS ((1 << 31) | (1 << 19)) |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * call once to initialize the library |
| * Note: should not call this if rpcmem is linked from libadsprpc.so |
| * /libcdsprpc.so/libmdsprpc.so/libsdsprpc.so |
| */ |
| void rpcmem_init(void); |
| /** |
| * call once for cleanup |
| * Note: should not call this if rpcmem is linked from libadsprpc.so |
| * /libcdsprpc.so/libmdsprpc.so/libsdsprpc.so |
| */ |
| void rpcmem_deinit(void); |
| |
| /** |
| * Allocate via ION a buffer of size |
| * @heapid, the heap id to use |
| * @flags, ion flags to use to when allocating |
| * @size, the buffer size to allocate |
| * @retval, 0 on failure, pointer to buffer on success |
| * |
| * For example: |
| * buf = rpcmem_alloc(RPCMEM_DEFAULT_HEAP, RPCMEM_DEFAULT_FLAGS, size); |
| */ |
| |
| void* rpcmem_alloc(int heapid, uint32 flags, int size); |
| |
| /** |
| * allocate with default settings |
| */ |
| #if !defined(WINNT) && !defined (_WIN32_WINNT) |
| __attribute__((unused)) |
| #endif |
| static __inline void* rpcmem_alloc_def(int size) { |
| return rpcmem_alloc(RPCMEM_DEFAULT_HEAP, RPCMEM_DEFAULT_FLAGS, size); |
| } |
| |
| /** |
| * free buffer, ignores invalid buffers |
| */ |
| void rpcmem_free(void* po); |
| |
| /** |
| * returns associated fd |
| */ |
| int rpcmem_to_fd(void* po); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #define RPCMEM_HEAP_DEFAULT 0x80000000 |
| #define RPCMEM_HEAP_NOREG 0x40000000 |
| #define RPCMEM_HEAP_UNCACHED 0x20000000 |
| #define RPCMEM_HEAP_NOVA 0x10000000 |
| #define RPCMEM_HEAP_NONCOHERENT 0x08000000 |
| |
| #endif //RPCMEM_H |