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author | Tony Gutierrez <anthony.gutierrez@amd.com> | 2016-01-19 14:28:22 -0500 |
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committer | Tony Gutierrez <anthony.gutierrez@amd.com> | 2016-01-19 14:28:22 -0500 |
commit | 1a7d3f9fcb76a68540dd948f91413533a383bfde (patch) | |
tree | 867510a147cd095f19499d26b7c02d27de4cae9d /tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl | |
parent | 28e353e0403ea379d244a418e8dc8ee0b48187cf (diff) | |
download | gem5-1a7d3f9fcb76a68540dd948f91413533a383bfde.tar.xz |
gpu-compute: AMD's baseline GPU model
Diffstat (limited to 'tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl')
-rwxr-xr-x | tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl b/tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl new file mode 100755 index 000000000..1f61a6fab --- /dev/null +++ b/tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2014-2015 Advanced Micro Devices, Inc. + * All rights reserved. + * + * For use for simulation and test purposes only + * + * 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. + * + * Author: Marc Orr + */ + + +__kernel void read_kernel(size_t code_size, + __global char *code_in, + __global int *key_arr, + __global char *msg_out, + __global int *chars_decoded) +{ + size_t gid = get_global_id(0); + size_t my_idx = gid % code_size; + bool decode = 0; + __local atomic_int lcount; + + if (get_local_id(0) == 0) { + lcount=0; + } + barrier(CLK_LOCAL_MEM_FENCE); + + // read code + char mycode = code_in[my_idx]; + + // decode + int my_key = key_arr[my_idx]; + if (my_key) { + decode = 1; + for (int n = 0; n < my_key; n++) { + mycode++; + } + } + + // write out msg + msg_out[gid] = mycode; + + if (decode) { + atomic_fetch_add((atomic_int *)(&lcount), 1); + } + barrier(CLK_LOCAL_MEM_FENCE); + + + if(get_local_id(0) == 0) { + int _lcount = atomic_load(&lcount); + atomic_fetch_add((atomic_int *)chars_decoded, _lcount); + } +} |