Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2#include <stdlib.h>
3#include "../tests.h"
4
5#define BENCH_RUNS 999999
6
7#ifdef __aarch64__
8static void trap_bench(void)
9{
10 unsigned long val;
11
12 asm("mrs %0, ID_AA64ISAR0_EL1" : "=r" (val)); /* TRAP + ERET */
13}
14#else
15static void trap_bench(void) { }
16#endif
17
18static int traploop(int argc, const char **argv)
19{
20 int num_loops = BENCH_RUNS;
21
22 if (argc > 0)
23 num_loops = atoi(argv[0]);
24
25 for (int i = 0; i < num_loops; i++)
26 trap_bench();
27
28 return 0;
29}
30
31DEFINE_WORKLOAD(traploop);