3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 * Ternary instructions instr rA,rS,rB
30 * Logic instructions: or, orc, xor, nand, nor, eqv
31 * Shift instructions: slw, srw, sraw
33 * The test contains a pre-built table of instructions, operands and
34 * expected results. For each table entry, the test will cyclically use
35 * different sets of operand registers and result registers.
43 #if CONFIG_POST & CFG_POST_CPU
45 extern void cpu_post_exec_22 (ulong *code, ulong *cr, ulong *res, ulong op1,
47 extern ulong cpu_post_makecr (long v);
49 static struct cpu_post_threex_s
55 } cpu_post_threex_table[] =
130 static unsigned int cpu_post_threex_size =
131 sizeof (cpu_post_threex_table) / sizeof (struct cpu_post_threex_s);
133 int cpu_post_test_threex (void)
137 int flag = disable_interrupts();
139 for (i = 0; i < cpu_post_threex_size && ret == 0; i++)
141 struct cpu_post_threex_s *test = cpu_post_threex_table + i;
143 for (reg = 0; reg < 32 && ret == 0; reg++)
145 unsigned int reg0 = (reg + 0) % 32;
146 unsigned int reg1 = (reg + 1) % 32;
147 unsigned int reg2 = (reg + 2) % 32;
148 unsigned int stk = reg < 16 ? 31 : 15;
149 unsigned long code[] =
152 ASM_ADDI(stk, 1, -24),
155 ASM_STW(reg0, stk, 8),
156 ASM_STW(reg1, stk, 4),
157 ASM_STW(reg2, stk, 0),
158 ASM_LWZ(reg1, stk, 12),
159 ASM_LWZ(reg0, stk, 16),
160 ASM_12X(test->cmd, reg2, reg1, reg0),
161 ASM_STW(reg2, stk, 12),
162 ASM_LWZ(reg2, stk, 0),
163 ASM_LWZ(reg1, stk, 4),
164 ASM_LWZ(reg0, stk, 8),
166 ASM_ADDI(1, stk, 24),
170 unsigned long codecr[] =
173 ASM_ADDI(stk, 1, -24),
176 ASM_STW(reg0, stk, 8),
177 ASM_STW(reg1, stk, 4),
178 ASM_STW(reg2, stk, 0),
179 ASM_LWZ(reg1, stk, 12),
180 ASM_LWZ(reg0, stk, 16),
181 ASM_12X(test->cmd, reg2, reg1, reg0) | BIT_C,
182 ASM_STW(reg2, stk, 12),
183 ASM_LWZ(reg2, stk, 0),
184 ASM_LWZ(reg1, stk, 4),
185 ASM_LWZ(reg0, stk, 8),
187 ASM_ADDI(1, stk, 24),
197 cpu_post_exec_22 (code, & cr, & res, test->op1, test->op2);
199 ret = res == test->res && cr == 0 ? 0 : -1;
203 post_log ("Error at threex test %d !\n", i);
209 cpu_post_exec_22 (codecr, & cr, & res, test->op1, test->op2);
211 ret = res == test->res &&
212 (cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1;
216 post_log ("Error at threex test %d !\n", i);