mirror of
https://github.com/antonblanchard/microwatt.git
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tests: Add a test for trace interrupts
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras
222
tests/trace/trace.c
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222
tests/trace/trace.c
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "console.h"
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extern unsigned long callit(unsigned long arg1, unsigned long arg2,
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unsigned long (*fn)(unsigned long, unsigned long),
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unsigned long msr, unsigned long *regs);
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#define MSR_SE 0x400
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#define MSR_BE 0x200
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#define SRR0 26
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#define SRR1 27
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#define SPRG0 272
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#define SPRG1 273
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static inline unsigned long mfmsr(void)
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{
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unsigned long msr;
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__asm__ volatile ("mfmsr %0" : "=r" (msr));
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return msr;
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}
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static inline unsigned long mfspr(int sprnum)
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{
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long val;
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__asm__ volatile("mfspr %0,%1" : "=r" (val) : "i" (sprnum));
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return val;
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}
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static inline void mtspr(int sprnum, unsigned long val)
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{
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__asm__ volatile("mtspr %0,%1" : : "i" (sprnum), "r" (val));
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}
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void print_string(const char *str)
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{
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for (; *str; ++str)
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putchar(*str);
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}
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void print_hex(unsigned long val, int ndigits)
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{
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int i, x;
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for (i = (ndigits - 1) * 4; i >= 0; i -= 4) {
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x = (val >> i) & 0xf;
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if (x >= 10)
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putchar(x + 'a' - 10);
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else
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putchar(x + '0');
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}
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}
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// i < 100
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void print_test_number(int i)
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{
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print_string("test ");
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putchar(48 + i/10);
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putchar(48 + i%10);
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putchar(':');
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}
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extern unsigned long test1(unsigned long, unsigned long);
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int trace_test_1(void)
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{
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unsigned long ret;
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unsigned long regs[2];
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ret = callit(1, 2, test1, mfmsr() | MSR_SE, regs);
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if (ret != 0xd00 || mfspr(SRR0) != (unsigned long)&test1 + 4)
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return ret + 1;
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if ((mfspr(SRR1) & 0x781f0000) != 0x40000000)
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return ret + 2;
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if (regs[0] != 3 || regs[1] != 2)
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return 3;
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return 0;
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}
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extern unsigned long test2(unsigned long, unsigned long);
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int trace_test_2(void)
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{
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unsigned long x = 3;
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unsigned long ret;
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unsigned long regs[2];
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ret = callit(1, (unsigned long)&x, test2, mfmsr() | MSR_SE, regs);
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if (ret != 0xd00 || mfspr(SRR0) != (unsigned long)&test2 + 4)
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return ret + 1;
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if ((mfspr(SRR1) & 0x781f0000) != 0x50000000)
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return ret + 2;
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if (regs[0] != 3 || x != 3)
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return 3;
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return 0;
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}
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extern unsigned long test3(unsigned long, unsigned long);
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int trace_test_3(void)
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{
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unsigned int x = 3;
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unsigned long ret;
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unsigned long regs[2];
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ret = callit(11, (unsigned long)&x, test3, mfmsr() | MSR_SE, regs);
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if (ret != 0xd00 || mfspr(SRR0) != (unsigned long)&test3 + 4)
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return ret + 1;
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if ((mfspr(SRR1) & 0x781f0000) != 0x48000000)
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return ret + 2;
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if (regs[0] != 11 || x != 11)
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return 3;
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return 0;
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}
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extern unsigned long test4(unsigned long, unsigned long);
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int trace_test_4(void)
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{
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unsigned long x = 3;
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unsigned long ret;
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unsigned long regs[2];
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ret = callit(1, (unsigned long)&x, test4, mfmsr() | MSR_SE, regs);
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if (ret != 0xd00 || mfspr(SRR0) != (unsigned long)&test4 + 4)
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return ret + 1;
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if ((mfspr(SRR1) & 0x781f0000) != 0x50000000)
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return ret + 2;
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if (regs[0] != 1 || x != 3)
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return 3;
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return 0;
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}
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extern unsigned long test5(unsigned long, unsigned long);
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int trace_test_5(void)
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{
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unsigned int x = 7;
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unsigned long ret;
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unsigned long regs[2];
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ret = callit(11, (unsigned long)&x, test5, mfmsr() | MSR_SE, regs);
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if (ret != 0xd00 || mfspr(SRR0) != (unsigned long)&test5 + 4)
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return ret + 1;
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if ((mfspr(SRR1) & 0x781f0000) != 0x48000000)
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return ret + 2;
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if (regs[0] != 11 || x != 7)
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return 3;
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return 0;
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}
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extern unsigned long test6(unsigned long, unsigned long);
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int trace_test_6(void)
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{
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unsigned long ret;
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unsigned long regs[2];
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ret = callit(11, 55, test6, mfmsr() | MSR_BE, regs);
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if (ret != 0xd00 || mfspr(SRR0) != (unsigned long)&test6 + 20)
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return ret + 1;
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if ((mfspr(SRR1) & 0x781f0000) != 0x40000000)
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return ret + 2;
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if (regs[0] != 11 || regs[1] != 55)
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return 3;
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return 0;
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}
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extern unsigned long test7(unsigned long, unsigned long);
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int trace_test_7(void)
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{
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unsigned long ret;
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unsigned long regs[2];
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ret = callit(11, 55, test7, mfmsr() | MSR_BE, regs);
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if (ret != 0xd00 || mfspr(SRR0) != (unsigned long)&test7 + 16)
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return ret + 1;
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if ((mfspr(SRR1) & 0x781f0000) != 0x40000000)
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return ret + 2;
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if (regs[0] != 11 || regs[1] != 1)
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return 3;
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return 0;
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}
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int fail = 0;
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void do_test(int num, int (*test)(void))
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{
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int ret;
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print_test_number(num);
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ret = test();
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if (ret == 0) {
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print_string("PASS\r\n");
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} else {
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fail = 1;
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print_string("FAIL ");
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print_hex(ret, 4);
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print_string("\r\n");
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}
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}
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int main(void)
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{
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console_init();
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do_test(1, trace_test_1);
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do_test(2, trace_test_2);
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do_test(3, trace_test_3);
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do_test(4, trace_test_4);
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do_test(5, trace_test_5);
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do_test(6, trace_test_6);
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do_test(7, trace_test_7);
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return fail;
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}
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