diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
| commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
| tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/arch/arm.c | |
| parent | Initial commit. (diff) | |
| download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip | |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/arch/arm.c')
| -rw-r--r-- | src/arch/arm.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/arch/arm.c b/src/arch/arm.c new file mode 100644 index 000000000..02f0107b7 --- /dev/null +++ b/src/arch/arm.c @@ -0,0 +1,37 @@ +#include "acconfig.h" +#include "arch/probe.h" + +/* flags we export */ +int ceph_arch_neon = 0; +int ceph_arch_aarch64_crc32 = 0; +int ceph_arch_aarch64_pmull = 0; + +#include <stdio.h> + +#if __linux__ + +#include <elf.h> +#include <link.h> // ElfW macro +#include <sys/auxv.h> + +#if __arm__ || __aarch64__ +#include <asm/hwcap.h> +#endif // __arm__ + +#endif // __linux__ + +int ceph_arch_arm_probe(void) +{ +#if __linux__ + unsigned long hwcap = getauxval(AT_HWCAP); +#if __arm__ + ceph_arch_neon = (hwcap & HWCAP_NEON) == HWCAP_NEON; +#elif __aarch64__ + ceph_arch_neon = (hwcap & HWCAP_ASIMD) == HWCAP_ASIMD; + ceph_arch_aarch64_crc32 = (hwcap & HWCAP_CRC32) == HWCAP_CRC32; + ceph_arch_aarch64_pmull = (hwcap & HWCAP_PMULL) == HWCAP_PMULL; +#endif +#endif // __linux__ + return 0; +} + |