1*b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 25cd27208SKumar Gala #include <linux/types.h> 35cd27208SKumar Gala #include <linux/errno.h> 47c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 55cd27208SKumar Gala 6d2b194edSKumar Gala #include <asm/sfp-machine.h> 7d2b194edSKumar Gala #include <math-emu/soft-fp.h> 8d2b194edSKumar Gala #include <math-emu/double.h> 9d2b194edSKumar Gala #include <math-emu/single.h> 105cd27208SKumar Gala 115cd27208SKumar Gala int 125cd27208SKumar Gala fnmadds(void *frD, void *frA, void *frB, void *frC) 135cd27208SKumar Gala { 145cd27208SKumar Gala FP_DECL_D(R); 155cd27208SKumar Gala FP_DECL_D(A); 165cd27208SKumar Gala FP_DECL_D(B); 175cd27208SKumar Gala FP_DECL_D(C); 185cd27208SKumar Gala FP_DECL_D(T); 19d2b194edSKumar Gala FP_DECL_EX; 205cd27208SKumar Gala 215cd27208SKumar Gala #ifdef DEBUG 22e48b1b45SHarvey Harrison printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC); 235cd27208SKumar Gala #endif 245cd27208SKumar Gala 25d2b194edSKumar Gala FP_UNPACK_DP(A, frA); 26d2b194edSKumar Gala FP_UNPACK_DP(B, frB); 27d2b194edSKumar Gala FP_UNPACK_DP(C, frC); 285cd27208SKumar Gala 295cd27208SKumar Gala #ifdef DEBUG 305cd27208SKumar Gala printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 315cd27208SKumar Gala printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 325cd27208SKumar Gala printk("C: %ld %lu %lu %ld (%ld)\n", C_s, C_f1, C_f0, C_e, C_c); 335cd27208SKumar Gala #endif 345cd27208SKumar Gala 355cd27208SKumar Gala if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) || 365cd27208SKumar Gala (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF)) 37033b8a33SLiu Yu FP_SET_EXCEPTION(EFLAG_VXIMZ); 385cd27208SKumar Gala 395cd27208SKumar Gala FP_MUL_D(T, A, C); 405cd27208SKumar Gala 415cd27208SKumar Gala if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF) 42033b8a33SLiu Yu FP_SET_EXCEPTION(EFLAG_VXISI); 435cd27208SKumar Gala 445cd27208SKumar Gala FP_ADD_D(R, T, B); 455cd27208SKumar Gala 465cd27208SKumar Gala if (R_c != FP_CLS_NAN) 475cd27208SKumar Gala R_s ^= 1; 485cd27208SKumar Gala 495cd27208SKumar Gala #ifdef DEBUG 505cd27208SKumar Gala printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 515cd27208SKumar Gala #endif 525cd27208SKumar Gala 53d2b194edSKumar Gala __FP_PACK_DS(frD, R); 54d2b194edSKumar Gala 55d2b194edSKumar Gala return FP_CUR_EXCEPTIONS; 565cd27208SKumar Gala } 57