3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
12 * Shift instructions: rlwimi
14 * The test contains a pre-built table of instructions, operands and
15 * expected results. For each table entry, the test will cyclically use
16 * different sets of operand registers and result registers.
22 #if CONFIG_POST & CONFIG_SYS_POST_CPU
24 extern void cpu_post_exec_22 (ulong *code, ulong *cr, ulong *res, ulong op1,
26 extern ulong cpu_post_makecr (long v);
28 static struct cpu_post_rlwimi_s
37 } cpu_post_rlwimi_table[] =
49 static unsigned int cpu_post_rlwimi_size = ARRAY_SIZE(cpu_post_rlwimi_table);
51 int cpu_post_test_rlwimi (void)
55 int flag = disable_interrupts();
57 for (i = 0; i < cpu_post_rlwimi_size && ret == 0; i++)
59 struct cpu_post_rlwimi_s *test = cpu_post_rlwimi_table + i;
61 for (reg = 0; reg < 32 && ret == 0; reg++)
63 unsigned int reg0 = (reg + 0) % 32;
64 unsigned int reg1 = (reg + 1) % 32;
65 unsigned int stk = reg < 16 ? 31 : 15;
66 unsigned long code[] =
69 ASM_ADDI(stk, 1, -20),
72 ASM_STW(reg0, stk, 4),
73 ASM_STW(reg1, stk, 0),
74 ASM_LWZ(reg1, stk, 8),
75 ASM_LWZ(reg0, stk, 12),
76 ASM_113(test->cmd, reg1, reg0, test->op2, test->mb, test->me),
77 ASM_STW(reg1, stk, 8),
78 ASM_LWZ(reg1, stk, 0),
79 ASM_LWZ(reg0, stk, 4),
85 unsigned long codecr[] =
88 ASM_ADDI(stk, 1, -20),
91 ASM_STW(reg0, stk, 4),
92 ASM_STW(reg1, stk, 0),
93 ASM_LWZ(reg1, stk, 8),
94 ASM_LWZ(reg0, stk, 12),
95 ASM_113(test->cmd, reg1, reg0, test->op2, test->mb, test->me) |
97 ASM_STW(reg1, stk, 8),
98 ASM_LWZ(reg1, stk, 0),
99 ASM_LWZ(reg0, stk, 4),
101 ASM_ADDI(1, stk, 20),
111 cpu_post_exec_22 (code, & cr, & res, test->op0, test->op1);
113 ret = res == test->res && cr == 0 ? 0 : -1;
117 post_log ("Error at rlwimi test %d !\n", i);
123 cpu_post_exec_22 (codecr, & cr, & res, test->op0, test->op1);
125 ret = res == test->res &&
126 (cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1;
130 post_log ("Error at rlwimi test %d !\n", i);