#ifdef ARCH_HAVE_CRC_CRYPTO
#include <sys/auxv.h>
+#ifndef HWCAP_PMULL
+#define HWCAP_PMULL (1 << 4)
+#endif /* HWCAP_PMULL */
#ifndef HWCAP_CRC32
#define HWCAP_CRC32 (1 << 7)
#endif /* HWCAP_CRC32 */
#define IOPRIO_MIN_PRIO_CLASS 0
#define IOPRIO_MAX_PRIO_CLASS 3
-static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
+static inline int ioprio_value(int ioprio_class, int ioprio)
{
/*
* If no class is set, assume BE
*/
- if (!ioprio_class)
- ioprio_class = IOPRIO_CLASS_BE;
+ if (!ioprio_class)
+ ioprio_class = IOPRIO_CLASS_BE;
+
+ return (ioprio_class << IOPRIO_CLASS_SHIFT) | ioprio;
+}
+
+static inline bool ioprio_value_is_class_rt(unsigned int priority)
+{
+ return (priority >> IOPRIO_CLASS_SHIFT) == IOPRIO_CLASS_RT;
+}
- ioprio |= ioprio_class << IOPRIO_CLASS_SHIFT;
- return syscall(__NR_ioprio_set, which, who, ioprio);
+static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
+{
+ return syscall(__NR_ioprio_set, which, who,
+ ioprio_value(ioprio_class, ioprio));
}
#ifndef CONFIG_HAVE_GETTID
#ifdef ARCH_HAVE_CRC_CRYPTO
case CPU_ARM64_CRC32C:
hwcap = getauxval(AT_HWCAP);
- have_feature = (hwcap & HWCAP_CRC32) != 0;
+ have_feature = (hwcap & (HWCAP_PMULL | HWCAP_CRC32)) ==
+ (HWCAP_PMULL | HWCAP_CRC32);
break;
#endif
default: