1 files changed, 140 insertions, 0 deletions
diff --git a/inc/rpcmem.h b/inc/rpcmem.h
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--- /dev/null
+++ b/inc/rpcmem.h
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+/**
+ * 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