1 #include <linux/kernel.h> 2 #include <linux/sched.h> 3 #include <linux/types.h> 4 #include <asm/byteorder.h> 5 6 #define add_ssaaaa(sh, sl, ah, al, bh, bl) ({ \ 7 unsigned int __sh = (ah); \ 8 unsigned int __sl = (al); \ 9 __asm__ (" alr %1,%3\n" \ 10 " brc 12,0f\n" \ 11 " ahi %0,1\n" \ 12 "0: alr %0,%2" \ 13 : "+&d" (__sh), "+d" (__sl) \ 14 : "d" (bh), "d" (bl) : "cc" ); \ 15 (sh) = __sh; \ 16 (sl) = __sl; \ 17 }) 18 19 #define sub_ddmmss(sh, sl, ah, al, bh, bl) ({ \ 20 unsigned int __sh = (ah); \ 21 unsigned int __sl = (al); \ 22 __asm__ (" slr %1,%3\n" \ 23 " brc 3,0f\n" \ 24 " ahi %0,-1\n" \ 25 "0: slr %0,%2" \ 26 : "+&d" (__sh), "+d" (__sl) \ 27 : "d" (bh), "d" (bl) : "cc" ); \ 28 (sh) = __sh; \ 29 (sl) = __sl; \ 30 }) 31 32 /* a umul b = a mul b + (a>=2<<31) ? b<<32:0 + (b>=2<<31) ? a<<32:0 */ 33 #define umul_ppmm(wh, wl, u, v) ({ \ 34 unsigned int __wh = u; \ 35 unsigned int __wl = v; \ 36 __asm__ (" ltr 1,%0\n" \ 37 " mr 0,%1\n" \ 38 " jnm 0f\n" \ 39 " alr 0,%1\n" \ 40 "0: ltr %1,%1\n" \ 41 " jnm 1f\n" \ 42 " alr 0,%0\n" \ 43 "1: lr %0,0\n" \ 44 " lr %1,1\n" \ 45 : "+d" (__wh), "+d" (__wl) \ 46 : : "0", "1", "cc" ); \ 47 wh = __wh; \ 48 wl = __wl; \ 49 }) 50 51 #define udiv_qrnnd(q, r, n1, n0, d) \ 52 do { unsigned long __r; \ 53 (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \ 54 (r) = __r; \ 55 } while (0) 56 extern unsigned long __udiv_qrnnd (unsigned long *, unsigned long, 57 unsigned long , unsigned long); 58 59 #define UDIV_NEEDS_NORMALIZATION 0 60 61 #define abort() return 0 62 63 #define __BYTE_ORDER __BIG_ENDIAN 64