4  * Copyright (c) 2016-2020, Arm Limited.
5  * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
35 #define ALIGN(x, y) (((x) + (y) - 1) & ~((y) - 1))
37 /* Reference implementation - do not modify! */
42     uint64_t sum = 0;/* Need 64-bit accumulator when nbytes > 64K */  in checksum_simple()
44     /* Sum all halfwords, assume misaligned accesses are handled in HW */  in checksum_simple()
45     for (uint32_t nhalfs = nbytes >> 1; nhalfs != 0; nhalfs--)  in checksum_simple()
56     /* Fold 64-bit sum to 32 bits */  in checksum_simple()
61     /* Fold 32-bit sum to 16 bits */  in checksum_simple()
95     return -1;  in find_impl()
136 	  uint64_t cpufreq)  in benchmark()  argument
146 	const void *data = &base[random % (poolsize - blksize)];  in benchmark()
152     uint64_t elapsed_ns = end - start;  in benchmark()
157     unsigned int cyc_per_blk = cpufreq / blks_per_s;  in benchmark()
173     uint64_t CPUFREQ = 0;  in main()  local
179     while ((c = getopt(argc, argv, "b:df:i:n:p:")) != -1)  in main()
199 		    int64_t cpufreq = atoll(optarg);  in main()  local
200 		    if (cpufreq < 1)  in main()
203 				cpufreq);  in main()
206 		    CPUFREQ = cpufreq;  in main()
239 		    char c = optarg[strlen(optarg) - 1];  in main()
257 			"-b <blksize>    Block size\n"  in main()
258 			"-d              Dump first 96 bytes of data\n"  in main()
259 			"-f <cpufreq>    CPU frequency (Hz)\n"  in main()
260 			"-i <impl>       Implementation\n"  in main()
261 			"-n <numops>     Number of operations\n"  in main()
262 			"-p <poolsize>   Pool size (K or M suffix)\n"  in main()
281 			MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);  in main()
306 	   BLKSIZE, (uintmax_t) (CPUFREQ / 1000000));  in main()
335 	    uint8_t *p = base + POOLSIZE - (size + offset);  in main()
349     if (CPUFREQ != 0)  in main()
358 	CPUFREQ = 1000000000;  in main()
362 	benchmark(base, POOLSIZE, BLKSIZE, NUMOPS, CPUFREQ);  in main()
371 	    benchmark(base, POOLSIZE, sizes[i], numops, CPUFREQ);  in main()