Add arm64 hardware assisted crc32c support

[fio.git] / crc / crc32c.h

diff --git a/crc/crc32c.h b/crc/crc32c.h
index 11bcf9c8f4e8577efccf7eac467043bd572e617f..50d349bdddf33d0525654f07afe12aeb95c03695 100644 (file)
--- a/crc/crc32c.h
+++ b/crc/crc32c.h
@@ -21,8 +21,19 @@
 #include "../arch/arch.h"
 
 extern uint32_t crc32c_sw(unsigned char const *, unsigned long);
+extern int crc32c_arm64_available;
 extern int crc32c_intel_available;
 
+#ifdef ARCH_HAVE_ARM64_CRC_CRYPTO
+extern uint32_t crc32c_arm64(unsigned char const *, unsigned long);
+extern void crc32c_arm64_probe(void);
+#else
+#define crc32c_arm64 crc32c_sw
+static inline void crc32c_arm64_probe(void)
+{
+}
+#endif
+
 #ifdef ARCH_HAVE_SSE4_2
 extern uint32_t crc32c_intel(unsigned char const *, unsigned long);
 extern void crc32c_intel_probe(void);
@@ -35,6 +46,10 @@ static inline void crc32c_intel_probe(void)
 
 static inline uint32_t fio_crc32c(unsigned char const *buf, unsigned long len)
 {
+       if (crc32c_arm64_available) {
+               return crc32c_arm64(buf, len);
+       }
+
        if (crc32c_intel_available)
                return crc32c_intel(buf, len);