fio: update FSF address
[fio.git] / crc / crc32c.h
index cf1713692b76e82efeb516740d0a1275875c70d1..be03c1a27cc28ad851b55e5bd47e2dbb5192a690 100644 (file)
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #ifndef CRC32C_H
 #define CRC32C_H
 
-extern uint32_t crc32c(unsigned char const *, unsigned long);
+#include "../arch/arch.h"
+#include "../lib/types.h"
+
+extern uint32_t crc32c_sw(unsigned char const *, unsigned long);
+extern bool crc32c_arm64_available;
+extern bool 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);
+#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_arm64_available)
+               return crc32c_arm64(buf, len);
+
+       if (crc32c_intel_available)
+               return crc32c_intel(buf, len);
+
+       return crc32c_sw(buf, len);
+}
 
 #endif