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tests/trace: Test trace interrupt vs. FP unavailable interrupt

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Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras
2020-09-25 18:14:18 +10:00
parent b0f7237b7f
commit 144433218f
4 changed files with 24 additions and 0 deletions
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18
tests/trace/trace.c
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@@ -8,6 +8,7 @@ extern unsigned long callit(unsigned long arg1, unsigned long arg2,
unsigned long (*fn)(unsigned long, unsigned long),
unsigned long msr, unsigned long *regs);
#define MSR_FP 0x2000
#define MSR_SE 0x400
#define MSR_BE 0x200
@@ -188,6 +189,22 @@ int trace_test_7(void)
return 0;
}
extern unsigned long test8(unsigned long, unsigned long);
int trace_test_8(void)
{
unsigned long ret;
unsigned long regs[2];
ret = callit(0, 0, test8, (mfmsr() & ~MSR_FP) | MSR_SE, regs);
if (ret != 0x800)
return ret + 1;
ret = callit(0, 0, test8, mfmsr() | MSR_FP | MSR_SE, regs);
if (ret != 0xd00)
return ret + 2;
return 0;
}
int fail = 0;
void do_test(int num, int (*test)(void))
@@ -217,6 +234,7 @@ int main(void)
do_test(5, trace_test_5);
do_test(6, trace_test_6);
do_test(7, trace_test_7);
do_test(8, trace_test_8);
return fail;
}