| Message ID | 20230808061356.2215158-2-zengheng4@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/5] kselftest/arm64: add float-point feature to hwcap test | expand |
On Tue, Aug 08, 2023 at 02:13:52PM +0800, Zeng Heng wrote: > +static void crc32_sigill(void) > +{ > + /* CRC32W W0, W0, W1 */ > + asm volatile(".inst 0x1ac14800" : : : ); > +} Same here, you could assemble rather than hand encode but otherwise Reviewed-by: Mark Brown <broonie@kernel.org>
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index eaf9881c2e43..7ea526e7934e 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -33,6 +33,12 @@ */ typedef void (*sigill_fn)(void); +static void crc32_sigill(void) +{ + /* CRC32W W0, W0, W1 */ + asm volatile(".inst 0x1ac14800" : : : ); +} + static void cssc_sigill(void) { /* CNT x0, x0 */ @@ -234,6 +240,13 @@ static const struct hwcap_data { sigill_fn sigill_fn; bool sigill_reliable; } hwcaps[] = { + { + .name = "CRC32", + .at_hwcap = AT_HWCAP, + .hwcap_bit = HWCAP_CRC32, + .cpuinfo = "crc32", + .sigill_fn = crc32_sigill, + }, { .name = "CSSC", .at_hwcap = AT_HWCAP2,
Add the CRC32 feature check in the set of hwcap tests. Signed-off-by: Zeng Heng <zengheng4@huawei.com> --- tools/testing/selftests/arm64/abi/hwcap.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)