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selftests/powerpc: Move Hash MMU check to utilities

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This moves a function to test if the MMU is in Hash mode
under the generic test utilities.

Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200604125610.649668-3-sandipan@linux.ibm.com
This commit is contained in:
Sandipan Das
2020-06-04 18:26:09 +05:30
committed by Michael Ellerman
parent 828ca4320d
commit c405b738da
4 changed files with 30 additions and 29 deletions
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28
tools/testing/selftests/powerpc/mm/bad_accesses.c
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@@ -64,34 +64,6 @@ int bad_access(char *p, bool write)
return 0;
}
static int using_hash_mmu(bool *using_hash)
{
char line[128];
FILE *f;
int rc;
f = fopen("/proc/cpuinfo", "r");
FAIL_IF(!f);
rc = 0;
while (fgets(line, sizeof(line), f) != NULL) {
if (strcmp(line, "MMU : Hash\n") == 0) {
*using_hash = true;
goto out;
}
if (strcmp(line, "MMU : Radix\n") == 0) {
*using_hash = false;
goto out;
}
}
rc = -1;
out:
fclose(f);
return rc;
}
static int test(void)
{
unsigned long i, j, addr, region_shift, page_shift, page_size;