From 2c3ce0e7dd5154ffa017cd4dab3b14c09272c4a5 Mon Sep 17 00:00:00 2001 From: Zeng Heng Date: Tue, 15 Aug 2023 12:09:14 +0800 Subject: [PATCH] kselftest/arm64: add pmull feature to hwcap test Add the pmull feature check in the set of hwcap tests. Signed-off-by: Zeng Heng Reviewed-by: Mark Brown Link: https://lore.kernel.org/r/20230815040915.3966955-4-zengheng4@huawei.com Signed-off-by: Will Deacon --- tools/testing/selftests/arm64/abi/hwcap.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index 96c2611f1ac0..b3492a944503 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -88,6 +88,12 @@ static void mops_sigill(void) : "cc", "memory"); } +static void pmull_sigill(void) +{ + /* PMULL V0.1Q, V0.1D, V0.1D */ + asm volatile(".inst 0x0ee0e000" : : : ); +} + static void rng_sigill(void) { asm volatile("mrs x0, S3_3_C2_C4_0" : : : "x0"); @@ -345,6 +351,13 @@ static const struct hwcap_data { .sigill_fn = mops_sigill, .sigill_reliable = true, }, + { + .name = "PMULL", + .at_hwcap = AT_HWCAP, + .hwcap_bit = HWCAP_PMULL, + .cpuinfo = "pmull", + .sigill_fn = pmull_sigill, + }, { .name = "RNG", .at_hwcap = AT_HWCAP2, -- 2.25.1