X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=crc%2Fcrc32c.h;h=11bcf9c8f4e8577efccf7eac467043bd572e617f;hb=4d01ece69f7b4d7bd56210e0f839944a91c5679f;hp=1498db91a4d072ec77d2ec9ef488b81bd861c1ba;hpb=bac39e0e8807a1d52863ad8304e67221df2bc63b;p=fio.git

diff --git a/crc/crc32c.h b/crc/crc32c.h
index 1498db91..11bcf9c8 100644
--- a/crc/crc32c.h
+++ b/crc/crc32c.h
@@ -18,6 +18,27 @@
 #ifndef CRC32C_H
 #define CRC32C_H
 
-extern uint32_t crc32c(unsigned char const *, unsigned long);
+#include "../arch/arch.h"
+
+extern uint32_t crc32c_sw(unsigned char const *, unsigned long);
+extern int crc32c_intel_available;
+
+#ifdef ARCH_HAVE_SSE4_2
+extern uint32_t crc32c_intel(unsigned char const *, unsigned long);
+extern void crc32c_intel_probe(void);
+#else
+#define crc32c_intel crc32c_sw
+static inline void crc32c_intel_probe(void)
+{
+}
+#endif
+
+static inline uint32_t fio_crc32c(unsigned char const *buf, unsigned long len)
+{
+	if (crc32c_intel_available)
+		return crc32c_intel(buf, len);
+
+	return crc32c_sw(buf, len);
+}
 
 #endif