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| author | tuexen <tuexen@FreeBSD.org> | 2017-06-01 09:00:38 +0000 |
|---|---|---|
| committer | tuexen <tuexen@FreeBSD.org> | 2017-06-01 09:00:38 +0000 |
| commit | 2f7fd785bc7cf75ead8ffac67a74edeb62c7d0c7 (patch) | |
| tree | fd124a7e73656e650bf6662869bc348476d31ff6 /tests | |
| parent | e6c0f4792f47e2613dbb38acb329c8f57dd3bbab (diff) | |
| download | FreeBSD-src-2f7fd785bc7cf75ead8ffac67a74edeb62c7d0c7.zip FreeBSD-src-2f7fd785bc7cf75ead8ffac67a74edeb62c7d0c7.tar.gz | |
MFC r317512:
armv8 has support for optional CRC32C instructions. This patch checks if they are
available and if that is true make use of them.
Thank you very much to Andrew Turner for providing help and review the patch!
Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D10499
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/sys/kern/Makefile | 8 | ||||
| -rw-r--r-- | tests/sys/kern/libkern_crc32.c | 19 |
2 files changed, 26 insertions, 1 deletions
diff --git a/tests/sys/kern/Makefile b/tests/sys/kern/Makefile index d78785c..35cc8c7 100644 --- a/tests/sys/kern/Makefile +++ b/tests/sys/kern/Makefile @@ -25,10 +25,16 @@ NETBSD_ATF_TESTS_C+= mqueue_test CFLAGS.mqueue_test+= -I${SRCTOP}/tests LIBADD.mqueue_test+= rt -.if ${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "i386" +.if ${MACHINE_ARCH} == "amd64" || \ + ${MACHINE_ARCH} == "i386" || \ + ${MACHINE_ARCH} == "aarch64" ATF_TESTS_C+= libkern_crc32 CFLAGS.libkern_crc32+= -msse4 -DUSERSPACE_TESTING +.if ${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "i386" LDADD.libkern_crc32+= ${SRCTOP}/sys/libkern/x86/crc32_sse42.c +.else +LDADD.libkern_crc32+= ${SRCTOP}/sys/libkern/arm64/crc32c_armv8.S +.endif .endif # subr_unit.c contains functions whose prototypes lie in headers that cannot be diff --git a/tests/sys/kern/libkern_crc32.c b/tests/sys/kern/libkern_crc32.c index 5eef045..03d0231 100644 --- a/tests/sys/kern/libkern_crc32.c +++ b/tests/sys/kern/libkern_crc32.c @@ -32,7 +32,13 @@ #include <atf-c.h> +#if defined(__amd64__) || defined(__i386__) extern uint32_t sse42_crc32c(uint32_t, const unsigned char *, unsigned); +#elif defined(__aarch64__) +extern uint32_t armv8_crc32c(uint32_t, const unsigned char *, unsigned); +#else +#error These tests are not supported on this platform +#endif ATF_TC_WITHOUT_HEAD(crc32c_basic_correctness); ATF_TC_BODY(crc32c_basic_correctness, tc) @@ -79,8 +85,13 @@ ATF_TC_BODY(crc32c_basic_correctness, tc) ATF_REQUIRE(nitems(inputs) == nitems(results)); for (i = 0; i < nitems(inputs); i++) { +#if defined(__amd64__) || defined(__i386__) act = sse42_crc32c(~0, (const void *)&inputs[i], sizeof(inputs[0])); +#else + act = armv8_crc32c(~0, (const void *)&inputs[i], + sizeof(inputs[0])); +#endif ATF_REQUIRE_MSG(act == results[i], "crc32c(0x%jx) = 0x%08x, got 0x%08x", (uintmax_t)inputs[i], results[i], act); @@ -100,7 +111,11 @@ ATF_TC_BODY(crc32c_alignment, tc) for (i = 1; i < 8; i++) { memcpy(&buf[i], &input, sizeof(input)); +#if defined(__amd64__) || defined(__i386__) act = sse42_crc32c(~0, (const void *)&buf[i], sizeof(input)); +#else + act = armv8_crc32c(~0, (const void *)&buf[i], sizeof(input)); +#endif ATF_REQUIRE_MSG(act == result, "crc32c(0x%jx) = 0x%08x, got 0x%08x", (uintmax_t)input, result, act); @@ -117,7 +132,11 @@ ATF_TC_BODY(crc32c_trailing_bytes, tc) const uint32_t result = 0xec638d62; uint32_t act; +#if defined(__amd64__) || defined(__i386__) act = sse42_crc32c(~0, input, sizeof(input)); +#else + act = armv8_crc32c(~0, input, sizeof(input)); +#endif ATF_REQUIRE_MSG(act == result, "expected 0x%08x, got 0x%08x", result, act); } |
