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tests/trace: Add a few tests of DAWR (data watchpoint) functionality

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Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras
2025-01-16 22:37:58 +11:00
parent 5ddd8884fa
commit 80bc9d5098
4 changed files with 107 additions and 1 deletions
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BIN
tests/test_trace.bin
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1
tests/test_trace.console_out
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@@ -8,3 +8,4 @@ test 07:PASS
test 08:PASS
test 09:PASS
test 10:PASS
test 11:PASS

14
tests/trace/head.S
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@@ -237,3 +237,17 @@ test10:
nop
1: li %r3,-1
blr
.global test11
test11:
stdx %r3,%r3,%r4
stw %r3,6(%r4)
dcbt 0,%r4
dcbf 0,%r4
dcbtst 0,%r4
sync
ld %r3,0(%r4)
lwz %r3,6(%r4)
lwz %r3,27(%r4)
stb %r3,26(%r4)
blr

93
tests/trace/trace.c
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@@ -11,11 +11,17 @@ extern unsigned long callit(unsigned long arg1, unsigned long arg2,
#define MSR_SE 0x400
#define MSR_BE 0x200
#define DSISR 18
#define DAR 19
#define SRR0 26
#define SRR1 27
#define SPRG0 272
#define SPRG1 273
#define CIABR 187
#define DAWR0 180
#define DAWR1 181
#define DAWRX0 188
#define DAWRX1 189
#define SIAR 780
#define SDAR 781
@@ -232,6 +238,7 @@ int trace_test_9(void)
extern unsigned long test10(unsigned long, unsigned long);
/* test CIABR */
int trace_test_10(void)
{
unsigned long ret;
@@ -265,6 +272,89 @@ int trace_test_10(void)
return 0;
}
/* test DAWR[X]{0,1} */
#define MRD_SHIFT 10
#define HRAMMC 0x80
#define DW 0x40
#define DR 0x20
#define WT 0x10
#define WTI 0x08
#define PRIVM_HYP 0x04
#define PRIVM_PNH 0x02
#define PRIVM_PRO 0x01
extern unsigned long test11(unsigned long, unsigned long);
int trace_test_11(void)
{
unsigned long ret;
unsigned long regs[2];
unsigned long x[4];
mtspr(DAWR0, (unsigned long)&x[0]);
mtspr(DAWRX0, (0 << MRD_SHIFT) + DW + PRIVM_HYP);
ret = callit(0, (unsigned long) &x, test11, mfmsr(), regs);
if (ret != 0x300)
return ret + 1;
if (mfspr(SRR0) != (unsigned long) &test11 || mfspr(DSISR) != 0x02400000 ||
mfspr(DAR) != (unsigned long)&x[0])
return 2;
mtspr(DAWR0, (unsigned long)&x[1]);
ret = callit(0, (unsigned long) &x, test11, mfmsr(), regs);
if (ret != 0x300)
return ret + 3;
if (mfspr(SRR0) != (unsigned long) &test11 + 4 || mfspr(DSISR) != 0x02400000 ||
mfspr(DAR) != (unsigned long)&x[1])
return 4;
mtspr(DAWR0, (unsigned long)&x[0]);
mtspr(DAWRX0, (0 << MRD_SHIFT) + DR + PRIVM_HYP);
ret = callit(0, (unsigned long) &x, test11, mfmsr(), regs);
if (ret != 0x300)
return ret + 5;
if (mfspr(SRR0) != (unsigned long) &test11 + 24 || mfspr(DSISR) != 0x00400000)
return 6;
mtspr(DAWR0, (unsigned long)&x[1]);
ret = callit(0, (unsigned long) &x, test11, mfmsr(), regs);
if (ret != 0x300)
return ret + 7;
if (mfspr(SRR0) != (unsigned long) &test11 + 28 || mfspr(DSISR) != 0x00400000)
return 8;
mtspr(DAWR0, (unsigned long)&x[3]);
ret = callit(0, (unsigned long) &x, test11, mfmsr(), regs);
if (ret != 0x300)
return ret + 9;
if (mfspr(SRR0) != (unsigned long) &test11 + 32 || mfspr(DSISR) != 0x00400000)
return 10;
mtspr(DAWR0, (unsigned long)&x[2]);
mtspr(DAWRX0, (1 << MRD_SHIFT) + DW + PRIVM_HYP);
ret = callit(0, (unsigned long) &x, test11, mfmsr(), regs);
if (ret != 0x300)
return ret + 11;
if (mfspr(SRR0) != (unsigned long) &test11 + 36 || mfspr(DSISR) != 0x02400000)
return 12;
mtspr(DAWR0, (unsigned long)&x[0]);
mtspr(DAWRX0, (3 << MRD_SHIFT) + DR + DW + WT + PRIVM_HYP);
ret = callit(0, (unsigned long) &x, test11, mfmsr(), regs);
if (ret != 0)
return ret + 13;
mtspr(DAWR0, (unsigned long)&x[0]);
mtspr(DAWRX0, (3 << MRD_SHIFT) + DR + DW + WT + WTI + PRIVM_HYP);
ret = callit(0, (unsigned long) &x, test11, mfmsr(), regs);
if (ret != 0x300)
return ret + 14;
if (mfspr(SRR0) != (unsigned long) &test11 || mfspr(DSISR) != 0x02400000)
return 15;
return 0;
}
int fail = 0;
void do_test(int num, int (*test)(void))
@@ -277,7 +367,7 @@ void do_test(int num, int (*test)(void))
print_string("PASS\r\n");
} else {
fail = 1;
print_string("FAIL ");
print_string(" FAIL ");
print_hex(ret, 4);
print_string("\r\n");
}
@@ -297,6 +387,7 @@ int main(void)
do_test(8, trace_test_8);
do_test(9, trace_test_9);
do_test(10, trace_test_10);
do_test(11, trace_test_11);
return fail;
}