3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
12 * Ternary instructions instr rA,rS,rB
14 * Logic instructions: or, orc, xor, nand, nor, eqv
15 * Shift instructions: slw, srw, sraw
17 * The test contains a pre-built table of instructions, operands and
18 * expected results. For each table entry, the test will cyclically use
19 * different sets of operand registers and result registers.
25 #if CONFIG_POST & CONFIG_SYS_POST_CPU
27 extern void cpu_post_exec_22 (ulong *code, ulong *cr, ulong *res, ulong op1,
29 extern ulong cpu_post_makecr (long v);
31 static struct cpu_post_threex_s
37 } cpu_post_threex_table[] =
112 static unsigned int cpu_post_threex_size = ARRAY_SIZE(cpu_post_threex_table);
114 int cpu_post_test_threex (void)
118 int flag = disable_interrupts();
120 for (i = 0; i < cpu_post_threex_size && ret == 0; i++)
122 struct cpu_post_threex_s *test = cpu_post_threex_table + i;
124 for (reg = 0; reg < 32 && ret == 0; reg++)
126 unsigned int reg0 = (reg + 0) % 32;
127 unsigned int reg1 = (reg + 1) % 32;
128 unsigned int reg2 = (reg + 2) % 32;
129 unsigned int stk = reg < 16 ? 31 : 15;
130 unsigned long code[] =
133 ASM_ADDI(stk, 1, -24),
136 ASM_STW(reg0, stk, 8),
137 ASM_STW(reg1, stk, 4),
138 ASM_STW(reg2, stk, 0),
139 ASM_LWZ(reg1, stk, 12),
140 ASM_LWZ(reg0, stk, 16),
141 ASM_12X(test->cmd, reg2, reg1, reg0),
142 ASM_STW(reg2, stk, 12),
143 ASM_LWZ(reg2, stk, 0),
144 ASM_LWZ(reg1, stk, 4),
145 ASM_LWZ(reg0, stk, 8),
147 ASM_ADDI(1, stk, 24),
151 unsigned long codecr[] =
154 ASM_ADDI(stk, 1, -24),
157 ASM_STW(reg0, stk, 8),
158 ASM_STW(reg1, stk, 4),
159 ASM_STW(reg2, stk, 0),
160 ASM_LWZ(reg1, stk, 12),
161 ASM_LWZ(reg0, stk, 16),
162 ASM_12X(test->cmd, reg2, reg1, reg0) | BIT_C,
163 ASM_STW(reg2, stk, 12),
164 ASM_LWZ(reg2, stk, 0),
165 ASM_LWZ(reg1, stk, 4),
166 ASM_LWZ(reg0, stk, 8),
168 ASM_ADDI(1, stk, 24),
178 cpu_post_exec_22 (code, & cr, & res, test->op1, test->op2);
180 ret = res == test->res && cr == 0 ? 0 : -1;
184 post_log ("Error at threex test %d !\n", i);
190 cpu_post_exec_22 (codecr, & cr, & res, test->op1, test->op2);
192 ret = res == test->res &&
193 (cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1;
197 post_log ("Error at threex test %d !\n", i);