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authorTony Gutierrez <anthony.gutierrez@amd.com>2016-01-19 14:28:22 -0500
committerTony Gutierrez <anthony.gutierrez@amd.com>2016-01-19 14:28:22 -0500
commit1a7d3f9fcb76a68540dd948f91413533a383bfde (patch)
tree867510a147cd095f19499d26b7c02d27de4cae9d /tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl
parent28e353e0403ea379d244a418e8dc8ee0b48187cf (diff)
downloadgem5-1a7d3f9fcb76a68540dd948f91413533a383bfde.tar.xz
gpu-compute: AMD's baseline GPU model
Diffstat (limited to 'tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl')
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diff --git a/tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl b/tests/test-progs/gpu-hello/src/gpu-hello-kernel.cl
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+/*
+ * 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);
+ }
+}