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post/lib_powerpc/rlwimi.c
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/* * (C) Copyright 2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ #include <common.h> /* * CPU test * Shift instructions: rlwimi * * 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. */ |
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#include <post.h> #include "cpu_asm.h" |
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#if CONFIG_POST & CONFIG_SYS_POST_CPU |
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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_rlwimi_s { ulong cmd; ulong op0; ulong op1; uchar op2; uchar mb; uchar me; ulong res; } cpu_post_rlwimi_table[] = { { |
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OP_RLWIMI, |
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0xff00ffff, 0x0000aa00, 8, 8, 15, 0xffaaffff }, }; |
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static unsigned int cpu_post_rlwimi_size = ARRAY_SIZE(cpu_post_rlwimi_table); |
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int cpu_post_test_rlwimi (void) { int ret = 0; unsigned int i, reg; int flag = disable_interrupts(); for (i = 0; i < cpu_post_rlwimi_size && ret == 0; i++) { struct cpu_post_rlwimi_s *test = cpu_post_rlwimi_table + i; for (reg = 0; reg < 32 && ret == 0; reg++) { unsigned int reg0 = (reg + 0) % 32; unsigned int reg1 = (reg + 1) % 32; unsigned int stk = reg < 16 ? 31 : 15; |
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unsigned long code[] = |
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{ ASM_STW(stk, 1, -4), ASM_ADDI(stk, 1, -20), ASM_STW(3, stk, 8), ASM_STW(4, stk, 12), ASM_STW(reg0, stk, 4), ASM_STW(reg1, stk, 0), ASM_LWZ(reg1, stk, 8), ASM_LWZ(reg0, stk, 12), ASM_113(test->cmd, reg1, reg0, test->op2, test->mb, test->me), ASM_STW(reg1, stk, 8), ASM_LWZ(reg1, stk, 0), ASM_LWZ(reg0, stk, 4), ASM_LWZ(3, stk, 8), ASM_ADDI(1, stk, 20), ASM_LWZ(stk, 1, -4), ASM_BLR, }; |
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unsigned long codecr[] = |
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{ ASM_STW(stk, 1, -4), ASM_ADDI(stk, 1, -20), ASM_STW(3, stk, 8), ASM_STW(4, stk, 12), ASM_STW(reg0, stk, 4), ASM_STW(reg1, stk, 0), ASM_LWZ(reg1, stk, 8), ASM_LWZ(reg0, stk, 12), ASM_113(test->cmd, reg1, reg0, test->op2, test->mb, test->me) | BIT_C, ASM_STW(reg1, stk, 8), ASM_LWZ(reg1, stk, 0), ASM_LWZ(reg0, stk, 4), ASM_LWZ(3, stk, 8), ASM_ADDI(1, stk, 20), ASM_LWZ(stk, 1, -4), ASM_BLR, }; ulong res; ulong cr; if (ret == 0) { |
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cr = 0; cpu_post_exec_22 (code, & cr, & res, test->op0, test->op1); |
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ret = res == test->res && cr == 0 ? 0 : -1; |
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if (ret != 0) { |
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post_log ("Error at rlwimi test %d ! ", i); |
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} |
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} if (ret == 0) { |
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cpu_post_exec_22 (codecr, & cr, & res, test->op0, test->op1); |
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ret = res == test->res && |
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(cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1; |
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if (ret != 0) { |
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post_log ("Error at rlwimi test %d ! ", i); } |
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} } } if (flag) |
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enable_interrupts(); |
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return ret; } #endif |