NAME

       rtapi_div_u64 - unsigned division of a 64-bit number by a 32-bit number

SYNTAX

       __u64 rtapi_div_u64_rem(__u64 dividend, __u32 divisor, __u32 *remainder)

       __u64 rtapi_div_u64(__u64 dividend, __u32 divisor)

       __s64 rtapi_div_s64(__s64 dividend, __s32 divisor)

       __s64 rtapi_div_s64_rem(__s64 dividend, __s32 divisor, __s32 *remainder)

ARGUMENTS

       dividend
              The value to be divided

       divisor
              The value to divide by

       remainder
              Pointer  to  the  location to store the remainder.  This may not be a NULL pointer.
              If the remainder is not desired, call rtapi_div_u64 or rtapi_div_s64.

DESCRIPTION

       Perform integer division (and optionally compute the remainder) with a 64-bit dividend and
       32-bit divisor.

RETURN VALUE

       The  result  of  integer  division  of dividend / divisor.  In versions with the remainder
       argument, the remainder is stored in the pointed-to location.

NOTES

       If the result of the division does not fit in the return type, the result is undefined.

       This function exists because in kernel space the use of the division operator on a  64-bit
       type can lead to an undefined symbol such as __umoddi3 when the module is loaded.

REALTIME CONSIDERATIONS

       May  be  called  from  init/cleanup  code  and  from  within realtime tasks.  Available in
       userspace components.