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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
112 lines
1.7 KiB
C
112 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <irq_func.h>
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/*
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* CPU test
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* Complex calculations
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*
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* The calculations in this test are just a combination of simpler
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* calculations, but probably under different timing conditions, etc.
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*/
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#include <post.h>
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#include "cpu_asm.h"
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#if CFG_POST & CFG_SYS_POST_CPU
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extern int cpu_post_complex_1_asm (int a1, int a2, int a3, int a4, int n);
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extern int cpu_post_complex_2_asm (int x, int n);
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/*
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* n
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* SUM (a1 * a2 - a3) / a4 = n * result
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* i=1
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*/
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static int cpu_post_test_complex_1 (void)
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{
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int a1 = 666;
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int a2 = 667;
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int a3 = 668;
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int a4 = 66;
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int n = 100;
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int result = 6720; /* (a1 * a2 - a3) / a4 */
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if (cpu_post_complex_1_asm(a1, a2, a3, a4, n) != n * result)
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{
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return -1;
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}
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return 0;
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}
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/* (1 + x + x^2 + ... + x^n) * (1 - x) = 1 - x^(n+1)
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*/
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static int cpu_post_test_complex_2 (void)
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{
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int ret = -1;
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int x;
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int n;
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int k;
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int left;
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int right;
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for (x = -8; x <= 8; x ++)
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{
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n = 9;
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left = cpu_post_complex_2_asm(x, n);
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left *= 1 - x;
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right = 1;
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for (k = 0; k <= n; k ++)
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{
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right *= x;
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}
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right = 1 - right;
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if (left != right)
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{
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goto Done;
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}
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}
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ret = 0;
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Done:
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return ret;
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}
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int cpu_post_test_complex (void)
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{
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int ret = 0;
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int flag = disable_interrupts();
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if (ret == 0)
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{
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ret = cpu_post_test_complex_1();
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}
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if (ret == 0)
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{
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ret = cpu_post_test_complex_2();
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}
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if (ret != 0)
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{
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post_log ("Error at complex test !\n");
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}
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if (flag)
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enable_interrupts();
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return ret;
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}
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#endif
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