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/*
* Copyright (c) 2017, The Linux Foundation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. Neither the name of the copyright holder 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
*/
#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <stdlib.h>
#include "apps_mem.h"
#include "remote64.h"
#include "rpcmem.h"
#include "verify.h"
#include "rpcmem.h"
#include "AEEQList.h"
#include "AEEstd.h"
#define ADSP_MMAP_HEAP_ADDR 4
static QList memlst;
static pthread_mutex_t memmt;
struct mem_info
{
QNode qn;
uint64 vapps;
uint64 vadsp;
int32 size;
};
/* These should be called in some static constructor of the .so that
uses rpcmem.
I moved them into fastrpc_apps_user.c because there is no gurantee in
the order of when constructors are called. */
void apps_mem_init(void)
{
QList_Ctor(&memlst);
pthread_mutex_init(&memmt, 0);
}
void apps_mem_deinit(void)
{
QNode *pn;
while ((pn = QList_PopZ(&memlst)) != NULL)
{
struct mem_info *mfree = STD_RECOVER_REC(struct mem_info, qn, pn);
rpcmem_free((void *)(uintptr_t)mfree->vapps);
free(mfree);
}
pthread_mutex_destroy(&memmt);
}
__QAIC_IMPL_EXPORT int __QAIC_IMPL(apps_mem_request_map64)(int heapid, uint32 lflags, uint32 rflags, uint64 vin, int64 len, uint64 *vapps, uint64 *vadsp) __QAIC_IMPL_ATTRIBUTE
{
struct mem_info *minfo = 0;
int nErr = 0;
void *buf = 0;
uintptr_t pbuf;
int fd;
(void)vin;
VERIFY(0 != (minfo = malloc(sizeof(*minfo))));
QNode_CtorZ(&minfo->qn);
*vadsp = 0;
if (rflags == ADSP_MMAP_HEAP_ADDR)
{
VERIFY(0 == remote_mmap64(-1, rflags, 0, len, (uintptr_t *)vadsp));
*vapps = 0;
minfo->vapps = 0;
}
else
{
lflags |= RPCMEM_HEAP_NOREG;
VERIFY(0 != (buf = rpcmem_alloc(heapid, lflags, len)));
fd = rpcmem_to_fd(buf);
VERIFY(fd > 0);
VERIFY(0 == remote_mmap64(fd, rflags, (uintptr_t)buf, len, (uintptr_t *)vadsp));
pbuf = (uintptr_t)buf;
*vapps = (uint64)pbuf;
minfo->vapps = *vapps;
}
minfo->vadsp = *vadsp;
minfo->size = len;
pthread_mutex_lock(&memmt);
QList_AppendNode(&memlst, &minfo->qn);
pthread_mutex_unlock(&memmt);
bail:
if (nErr)
{
if (buf)
{
rpcmem_free(buf);
}
if (minfo)
{
free(minfo);
}
}
return nErr;
}
__QAIC_IMPL_EXPORT int __QAIC_IMPL(apps_mem_request_map)(int heapid, uint32 lflags, uint32 rflags, uint32 vin, int32 len, uint32 *vapps, uint32 *vadsp) __QAIC_IMPL_ATTRIBUTE
{
uint64 vin1, vapps1, vadsp1;
int64 len1;
int nErr;
vin1 = (uint64)vin;
len1 = (int64)len;
nErr = apps_mem_request_map64(heapid, lflags, rflags, vin1, len1, &vapps1, &vadsp1);
*vapps = (uint32)vapps1;
*vadsp = (uint32)vadsp1;
return nErr;
}
__QAIC_IMPL_EXPORT int __QAIC_IMPL(apps_mem_request_unmap64)(uint64 vadsp, int64 len) __QAIC_IMPL_ATTRIBUTE
{
int nErr = 0;
struct mem_info * minfo, *mfree = 0;
QNode * pn, *pnn;
VERIFY(0 == remote_munmap64((uintptr_t)vadsp, len));
pthread_mutex_lock(&memmt);
QLIST_NEXTSAFE_FOR_ALL(&memlst, pn, pnn)
{
minfo = STD_RECOVER_REC(struct mem_info, qn, pn);
if (minfo->vadsp == vadsp)
{
mfree = minfo;
QNode_Dequeue(&minfo->qn);
break;
}
}
pthread_mutex_unlock(&memmt);
VERIFY(mfree);
rpcmem_free((void *)(uintptr_t)mfree->vapps);
free(mfree);
bail:
return nErr;
}
__QAIC_IMPL_EXPORT int __QAIC_IMPL(apps_mem_request_unmap)(uint32 vadsp, int32 len) __QAIC_IMPL_ATTRIBUTE
{
uint64 vadsp1 = (uint64)vadsp;
int64 len1 = (int64)len;
return apps_mem_request_unmap64(vadsp1, len1);
}
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