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selftests/powerpc: Skip 4PB test on 4K PAGE_SIZE systems

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Systems using the hash MMU with a 4K page size don't support 4PB address
space, so skip the test because the bug it tests for can't be triggered.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220901020215.254097-1-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman 2022-09-01 12:02:15 +10:00
parent aa398d88ae
commit 501fe29982
1 changed files with 2 additions and 0 deletions
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2
tools/testing/selftests/powerpc/mm/large_vm_gpr_corruption.c
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@ -112,6 +112,8 @@ static int test(void)
// This tests a hash MMU specific bug.
FAIL_IF(using_hash_mmu(&hash_mmu));
SKIP_IF(!hash_mmu);
// 4K kernels don't support 4PB address space
SKIP_IF(sysconf(_SC_PAGESIZE) < 65536);
page_size = sysconf(_SC_PAGESIZE);