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| author | Mitchell Horne <mhorne@FreeBSD.org> | 2020-09-08 15:39:19 +0000 |
|---|---|---|
| committer | Mitchell Horne <mhorne@FreeBSD.org> | 2020-09-08 15:39:19 +0000 |
| commit | 66245bc5360ccff5d734bded0d22d436bc11b2a9 (patch) | |
| tree | ff0a5874696d15647256bbe84731d9cb6084e916 /sys/libkern | |
| parent | 752eb6a99576f8b450397adb7e437a90799f3775 (diff) | |
| download | src-66245bc5360ccff5d734bded0d22d436bc11b2a9.tar.gz src-66245bc5360ccff5d734bded0d22d436bc11b2a9.zip | |
Notes
Diffstat (limited to 'sys/libkern')
| -rw-r--r-- | sys/libkern/gsb_crc32.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/sys/libkern/gsb_crc32.c b/sys/libkern/gsb_crc32.c index 81583567ce84..b2f7421c20eb 100644 --- a/sys/libkern/gsb_crc32.c +++ b/sys/libkern/gsb_crc32.c @@ -58,7 +58,8 @@ __FBSDID("$FreeBSD$"); #endif #if defined(__aarch64__) -#include <machine/cpu.h> +#include <machine/elf.h> +#include <machine/md_var.h> #endif #endif /* _KERNEL */ @@ -755,14 +756,7 @@ calculate_crc32c(uint32_t crc32c, } else #endif #if defined(__aarch64__) - uint64_t reg; - - /* - * We only test for CRC32 support on the CPU with index 0 assuming that - * this applies to all CPUs. - */ - reg = READ_SPECIALREG(id_aa64isar0_el1); - if (ID_AA64ISAR0_CRC32_VAL(reg) != ID_AA64ISAR0_CRC32_NONE) { + if ((elf_hwcap & HWCAP_CRC32) != 0) { return (armv8_crc32c(crc32c, buffer, length)); } else #endif |