1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #include <linux/kernel.h> 3*4882a593Smuzhiyun #include <linux/sched.h> 4*4882a593Smuzhiyun #include <linux/types.h> 5*4882a593Smuzhiyun #include <asm/byteorder.h> 6*4882a593Smuzhiyun #include <asm/fpu.h> 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ 9*4882a593Smuzhiyun ((sl) = (al) + (bl), (sh) = (ah) + (bh) + ((sl) < (al))) 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ 12*4882a593Smuzhiyun ((sl) = (al) - (bl), (sh) = (ah) - (bh) - ((al) < (bl))) 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #define umul_ppmm(wh, wl, u, v) \ 15*4882a593Smuzhiyun __asm__ ("mulq %2,%3,%1; umulh %2,%3,%0" \ 16*4882a593Smuzhiyun : "=r" ((UDItype)(wh)), \ 17*4882a593Smuzhiyun "=&r" ((UDItype)(wl)) \ 18*4882a593Smuzhiyun : "r" ((UDItype)(u)), \ 19*4882a593Smuzhiyun "r" ((UDItype)(v))) 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define udiv_qrnnd(q, r, n1, n0, d) \ 22*4882a593Smuzhiyun do { unsigned long __r; \ 23*4882a593Smuzhiyun (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \ 24*4882a593Smuzhiyun (r) = __r; \ 25*4882a593Smuzhiyun } while (0) 26*4882a593Smuzhiyun extern unsigned long __udiv_qrnnd (unsigned long *, unsigned long, 27*4882a593Smuzhiyun unsigned long , unsigned long); 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #define UDIV_NEEDS_NORMALIZATION 1 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #define abort() goto bad_insn 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #ifndef __LITTLE_ENDIAN 34*4882a593Smuzhiyun #define __LITTLE_ENDIAN -1 35*4882a593Smuzhiyun #endif 36*4882a593Smuzhiyun #define __BYTE_ORDER __LITTLE_ENDIAN 37