1 // SPDX-License-Identifier: GPL-2.0-only
5  * Run with 'taskset -c <cpu-list> cbo' to only execute hwprobe on a
24 static char mem[4096] __aligned(4096) = { [0 ... 4095] = 0xa5 };  variable
30 	unsigned long *regs = (unsigned long *)&((ucontext_t *)context)->uc_mcontext;  in sigill_handler()
39 #define cbo_insn(base, fn)							\  argument
45 	: : "r" (base), "i" (fn), "i" (MK_CBO(fn)) : "a0", "a1", "memory");	\
48 static void cbo_inval(char *base) { cbo_insn(base, 0); }  in cbo_inval()  argument
49 static void cbo_clean(char *base) { cbo_insn(base, 1); }  in cbo_clean()  argument
50 static void cbo_flush(char *base) { cbo_insn(base, 2); }  in cbo_flush()  argument
51 static void cbo_zero(char *base)  { cbo_insn(base, 4); }  in cbo_zero()  argument
58 	cbo_clean(&mem[0]);  in test_no_zicbom()
62 	cbo_flush(&mem[0]);  in test_no_zicbom()
66 	cbo_inval(&mem[0]);  in test_no_zicbom()
75 	cbo_zero(&mem[0]);  in test_no_zicboz()
81 	return n != 0 && (n & (n - 1)) == 0;  in is_power_of_2()
101 	cbo_zero(&mem[block_size]);  in test_zicboz()
113 			cbo_zero(&mem[i * block_size]);  in test_zicboz()
120 			if (mem[i * block_size + j] != expected) {  in test_zicboz()
122 				ksft_print_msg("cbo.zero check: mem[%llu] != 0x%x\n",  in test_zicboz()
187 	if (argc > 1 && !strcmp(argv[1], "--sigill")) {  in main()