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https://github.com/Relintai/pandemonium_engine.git
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107 lines
2.6 KiB
Common Lisp
107 lines
2.6 KiB
Common Lisp
/*
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Copyright (c) 2012 Advanced Micro Devices, Inc.
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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//Originally written by Takahiro Harada
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typedef unsigned int u32;
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#define GET_GROUP_IDX get_group_id(0)
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#define GET_LOCAL_IDX get_local_id(0)
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#define GET_GLOBAL_IDX get_global_id(0)
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#define GET_GROUP_SIZE get_local_size(0)
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#define GROUP_LDS_BARRIER barrier(CLK_LOCAL_MEM_FENCE)
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typedef struct
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{
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u32 m_key;
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u32 m_value;
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}SortData;
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typedef struct
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{
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u32 m_nSrc;
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u32 m_nDst;
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u32 m_padding[2];
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} ConstBuffer;
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__attribute__((reqd_work_group_size(64,1,1)))
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__kernel
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void SearchSortDataLowerKernel(__global SortData* src, __global u32 *dst,
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unsigned int nSrc, unsigned int nDst)
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{
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int gIdx = GET_GLOBAL_IDX;
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if( gIdx < nSrc )
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{
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SortData first; first.m_key = (u32)(-1); first.m_value = (u32)(-1);
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SortData end; end.m_key = nDst; end.m_value = nDst;
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SortData iData = (gIdx==0)? first: src[gIdx-1];
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SortData jData = (gIdx==nSrc)? end: src[gIdx];
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if( iData.m_key != jData.m_key )
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{
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// for(u32 k=iData.m_key+1; k<=min(jData.m_key, nDst-1); k++)
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u32 k = jData.m_key;
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{
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dst[k] = gIdx;
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}
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}
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}
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}
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__attribute__((reqd_work_group_size(64,1,1)))
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__kernel
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void SearchSortDataUpperKernel(__global SortData* src, __global u32 *dst,
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unsigned int nSrc, unsigned int nDst)
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{
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int gIdx = GET_GLOBAL_IDX+1;
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if( gIdx < nSrc+1 )
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{
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SortData first; first.m_key = 0; first.m_value = 0;
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SortData end; end.m_key = nDst; end.m_value = nDst;
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SortData iData = src[gIdx-1];
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SortData jData = (gIdx==nSrc)? end: src[gIdx];
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if( iData.m_key != jData.m_key )
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{
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u32 k = iData.m_key;
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{
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dst[k] = gIdx;
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}
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}
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}
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}
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__attribute__((reqd_work_group_size(64,1,1)))
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__kernel
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void SubtractKernel(__global u32* A, __global u32 *B, __global u32 *C,
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unsigned int nSrc, unsigned int nDst)
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{
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int gIdx = GET_GLOBAL_IDX;
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if( gIdx < nDst )
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{
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C[gIdx] = A[gIdx] - B[gIdx];
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}
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}
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