diff options
Diffstat (limited to 'post/cpu/three.c')
| -rw-r--r-- | post/cpu/three.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/post/cpu/three.c b/post/cpu/three.c deleted file mode 100644 index c2d7476..0000000 --- a/post/cpu/three.c +++ /dev/null @@ -1,259 +0,0 @@ -/* - * (C) Copyright 2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> - -/* - * CPU test - * Ternary instructions instr rD,rA,rB - * - * Arithmetic instructions: add, addc, adde, subf, subfc, subfe, - * mullw, mulhw, mulhwu, divw, divwu - * - * The test contains a pre-built table of instructions, operands and - * expected results. For each table entry, the test will cyclically use - * different sets of operand registers and result registers. - */ - -#ifdef CONFIG_POST - -#include <post.h> -#include "cpu_asm.h" - -#if CONFIG_POST & CFG_POST_CPU - -extern void cpu_post_exec_22 (ulong *code, ulong *cr, ulong *res, ulong op1, - ulong op2); -extern ulong cpu_post_makecr (long v); - -static struct cpu_post_three_s -{ - ulong cmd; - ulong op1; - ulong op2; - ulong res; -} cpu_post_three_table[] = -{ - { - OP_ADD, - 100, - 200, - 300 - }, - { - OP_ADD, - 100, - -200, - -100 - }, - { - OP_ADDC, - 100, - 200, - 300 - }, - { - OP_ADDC, - 100, - -200, - -100 - }, - { - OP_ADDE, - 100, - 200, - 300 - }, - { - OP_ADDE, - 100, - -200, - -100 - }, - { - OP_SUBF, - 100, - 200, - 100 - }, - { - OP_SUBF, - 300, - 200, - -100 - }, - { - OP_SUBFC, - 100, - 200, - 100 - }, - { - OP_SUBFC, - 300, - 200, - -100 - }, - { - OP_SUBFE, - 100, - 200, - 200 + ~100 - }, - { - OP_SUBFE, - 300, - 200, - 200 + ~300 - }, - { - OP_MULLW, - 200, - 300, - 200 * 300 - }, - { - OP_MULHW, - 0x10000000, - 0x10000000, - 0x1000000 - }, - { - OP_MULHWU, - 0x80000000, - 0x80000000, - 0x40000000 - }, - { - OP_DIVW, - -20, - 5, - -4 - }, - { - OP_DIVWU, - 0x8000, - 0x200, - 0x40 - }, -}; -static unsigned int cpu_post_three_size = - sizeof (cpu_post_three_table) / sizeof (struct cpu_post_three_s); - -int cpu_post_test_three (void) -{ - int ret = 0; - unsigned int i, reg; - int flag = disable_interrupts(); - - for (i = 0; i < cpu_post_three_size && ret == 0; i++) - { - struct cpu_post_three_s *test = cpu_post_three_table + i; - - for (reg = 0; reg < 32 && ret == 0; reg++) - { - unsigned int reg0 = (reg + 0) % 32; - unsigned int reg1 = (reg + 1) % 32; - unsigned int reg2 = (reg + 2) % 32; - unsigned int stk = reg < 16 ? 31 : 15; - unsigned long code[] = - { - ASM_STW(stk, 1, -4), - ASM_ADDI(stk, 1, -24), - ASM_STW(3, stk, 12), - ASM_STW(4, stk, 16), - ASM_STW(reg0, stk, 8), - ASM_STW(reg1, stk, 4), - ASM_STW(reg2, stk, 0), - ASM_LWZ(reg1, stk, 12), - ASM_LWZ(reg0, stk, 16), - ASM_12(test->cmd, reg2, reg1, reg0), - ASM_STW(reg2, stk, 12), - ASM_LWZ(reg2, stk, 0), - ASM_LWZ(reg1, stk, 4), - ASM_LWZ(reg0, stk, 8), - ASM_LWZ(3, stk, 12), - ASM_ADDI(1, stk, 24), - ASM_LWZ(stk, 1, -4), - ASM_BLR, - }; - unsigned long codecr[] = - { - ASM_STW(stk, 1, -4), - ASM_ADDI(stk, 1, -24), - ASM_STW(3, stk, 12), - ASM_STW(4, stk, 16), - ASM_STW(reg0, stk, 8), - ASM_STW(reg1, stk, 4), - ASM_STW(reg2, stk, 0), - ASM_LWZ(reg1, stk, 12), - ASM_LWZ(reg0, stk, 16), - ASM_12(test->cmd, reg2, reg1, reg0) | BIT_C, - ASM_STW(reg2, stk, 12), - ASM_LWZ(reg2, stk, 0), - ASM_LWZ(reg1, stk, 4), - ASM_LWZ(reg0, stk, 8), - ASM_LWZ(3, stk, 12), - ASM_ADDI(1, stk, 24), - ASM_LWZ(stk, 1, -4), - ASM_BLR, - }; - ulong res; - ulong cr; - - if (ret == 0) - { - cr = 0; - cpu_post_exec_22 (code, & cr, & res, test->op1, test->op2); - - ret = res == test->res && cr == 0 ? 0 : -1; - - if (ret != 0) - { - post_log ("Error at three test %d !\n", i); - } - } - - if (ret == 0) - { - cpu_post_exec_22 (codecr, & cr, & res, test->op1, test->op2); - - ret = res == test->res && - (cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1; - - if (ret != 0) - { - post_log ("Error at three test %d !\n", i); - } - } - } - } - - if (flag) - enable_interrupts(); - - return ret; -} - -#endif -#endif |