154 lines
4.8 KiB
C++
154 lines
4.8 KiB
C++
/*
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Copyright (c) 2014-2016 Intel Corporation. All Rights Reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "offload_common.h"
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bool __dv_is_contiguous(const ArrDesc *dvp)
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{
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if (dvp->Flags & ArrDescFlagsContiguous) {
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return true;
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}
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if (dvp->Rank != 0) {
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if (dvp->Dim[0].Mult != dvp->Len) {
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return false;
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}
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for (int i = 1; i < dvp->Rank; i++) {
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if (dvp->Dim[i].Mult !=
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dvp->Dim[i-1].Extent * dvp->Dim[i-1].Mult) {
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return false;
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}
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}
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}
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return true;
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}
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bool __dv_is_allocated(const ArrDesc *dvp)
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{
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return (dvp->Flags & ArrDescFlagsDefined);
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}
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uint64_t __dv_data_length(const ArrDesc *dvp)
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{
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uint64_t size;
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if (dvp->Rank == 0) {
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size = dvp->Len;
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return size;
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}
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size = dvp->Len;
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for (int i = 0; i < dvp->Rank; ++i) {
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size += (dvp->Dim[i].Extent-1) * dvp->Dim[i].Mult;
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}
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return size;
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}
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uint64_t __dv_data_length(const ArrDesc *dvp, int64_t count)
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{
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if (dvp->Rank == 0) {
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return count;
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}
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return count * dvp->Dim[0].Mult;
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}
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// Create CeanReadRanges data for reading contiguous ranges of
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// noncontiguous array defined by the argument
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CeanReadRanges * init_read_ranges_dv(const ArrDesc *dvp)
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{
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int64_t len;
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int count;
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int rank = dvp->Rank;
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CeanReadRanges *res = NULL;
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if (rank != 0) {
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int i = 0;
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len = dvp->Len;
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if (dvp->Dim[0].Mult == len) {
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for (i = 1; i < rank; i++) {
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len *= dvp->Dim[i-1].Extent;
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if (dvp->Dim[i].Mult != len) {
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break;
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}
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}
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}
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res = (CeanReadRanges *)malloc(
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sizeof(CeanReadRanges) + (rank - i) * sizeof(CeanReadDim));
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if (res == NULL)
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LIBOFFLOAD_ERROR(c_malloc);
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res -> last_noncont_ind = rank - i - 1;
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count = 1;
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for (; i < rank; i++) {
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res->Dim[rank - i - 1].count = count;
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res->Dim[rank - i - 1].size = dvp->Dim[i].Mult;
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count *= dvp->Dim[i].Extent;
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}
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res -> range_max_number = count;
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res -> range_size = len;
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res -> ptr = (void*)dvp->Base;
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res -> current_number = 0;
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res -> init_offset = 0;
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}
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return res;
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}
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#if OFFLOAD_DEBUG > 0
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void __dv_desc_dump(const char *name, const ArrDesc *dvp)
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{
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OFFLOAD_TRACE(3, "%s DV %p\n", name, dvp);
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if (dvp != 0) {
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OFFLOAD_TRACE(3,
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" dv->Base = 0x%lx\n"
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" dv->Len = 0x%lx\n"
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" dv->Offset = 0x%lx\n"
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" dv->Flags = 0x%lx\n"
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" dv->Rank = 0x%lx\n"
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" dv->Resrvd = 0x%lx\n",
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dvp->Base,
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dvp->Len,
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dvp->Offset,
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dvp->Flags,
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dvp->Rank,
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dvp->Reserved);
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for (int i = 0 ; i < dvp->Rank; i++) {
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OFFLOAD_TRACE(3,
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" (%d) Extent=%ld, Multiplier=%ld, LowerBound=%ld\n",
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i,
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dvp->Dim[i].Extent,
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dvp->Dim[i].Mult,
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dvp->Dim[i].LowerBound);
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}
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}
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}
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#endif // OFFLOAD_DEBUG > 0
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