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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2020-08-03 12:07:19 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-08-03 22:12:41 +1000 |
| commit | 872d11bca9c29ed19595c993b9f552ffe9b63dcb (patch) | |
| tree | 101f33625913e951cad50b2ea693162014d6efb0 /tools/testing/selftests/powerpc/math/vmx_syscall.c | |
| parent | powerpc/40x: Fix assembler warning about r0 (diff) | |
| download | wireguard-linux-872d11bca9c29ed19595c993b9f552ffe9b63dcb.tar.xz wireguard-linux-872d11bca9c29ed19595c993b9f552ffe9b63dcb.zip | |
selftests/powerpc: Skip vmx/vsx/tar/etc tests on older CPUs
Some of our tests use VSX or newer VMX instructions, so need to be
skipped on older CPUs to avoid SIGILL'ing.
Similarly TAR was added in v2.07, and the PMU event used in the stcx
fail test only works on Power8 or later.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200803020719.96114-1-mpe@ellerman.id.au
Diffstat (limited to 'tools/testing/selftests/powerpc/math/vmx_syscall.c')
| -rw-r--r-- | tools/testing/selftests/powerpc/math/vmx_syscall.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/math/vmx_syscall.c b/tools/testing/selftests/powerpc/math/vmx_syscall.c index 9ee293cc868e..03c78dfe3444 100644 --- a/tools/testing/selftests/powerpc/math/vmx_syscall.c +++ b/tools/testing/selftests/powerpc/math/vmx_syscall.c @@ -49,9 +49,14 @@ int test_vmx_syscall(void) * Setup an environment with much context switching */ pid_t pid2; - pid_t pid = fork(); + pid_t pid; int ret; int child_ret; + + // vcmpequd used in vmx_asm.S is v2.07 + SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07)); + + pid = fork(); FAIL_IF(pid == -1); pid2 = fork(); |