metalsvm/arch/x86/scc/iRCCE_put.c
2011-08-02 15:58:20 +02:00

87 lines
3 KiB
C

//***************************************************************************************
// Put data into communication buffer.
//***************************************************************************************
//
// Author: Rob F. Van der Wijngaart
// Intel Corporation
// Date: 008/30/2010
//
//***************************************************************************************
//
// Copyright 2010 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// [2010-11-03] switched to SCC-optimized memcpy() functions in scc_memcpy.h:
// - memcpy_to_mpb()
// - memcpy_from_mpb()
// by Stefan Lankes, Carsten Clauss, Chair for Operating Systems,
// RWTH Aachen University
//
#include <metalsvm/stdlib.h>
#include <metalsvm/string.h>
#ifdef CONFIG_ROCKCREEK
#include <asm/iRCCE_lib.h>
#ifdef COPPERRIDGE
#include "scc_memcpy.h"
#endif
void* iRCCE_memcpy_put(void *dest, const void *src, size_t count)
{
#ifdef COPPERRIDGE
return memcpy_to_mpb(dest, src, count);
#else
return memcpy(dest, src, count);
#endif
}
//--------------------------------------------------------------------------------------
// FUNCTION: iRCCE_put
//--------------------------------------------------------------------------------------
// copy data from address "source" in the local MPB or the calling UE's private memory
// to address "target" in the remote MPB. We do not test to see if a move from the
// calling UE's private memory stays within allocated memory
//--------------------------------------------------------------------------------------
int iRCCE_put(
t_vcharp target, // target buffer, MPB
t_vcharp source, // source buffer, MPB or private memory
int num_bytes,
int ID
) {
// in non-GORY mode we only need to retain the MPB target shift; we
// already know the target is in the MPB, not private memory
target = RCCE_comm_buffer[ID]+(target-RCCE_comm_buffer[RCCE_IAM]);
// make sure that any data that has been put in our MPB by another UE is visible
#ifdef _OPENMP
#pragma omp flush
#endif
// do the actual copy
RC_cache_invalidate();
iRCCE_memcpy_put((void *)target, (void *)source, num_bytes);
// flush data to make it visible to all threads; cannot use flush list because it
// concerns malloced space
#ifdef _OPENMP
#pragma omp flush
#endif
return(iRCCE_SUCCESS);
}
#endif