162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci#include <linux/types.h> 362306a36Sopenharmony_ci#include <linux/errno.h> 462306a36Sopenharmony_ci#include <linux/uaccess.h> 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#include <asm/sfp-machine.h> 762306a36Sopenharmony_ci#include <math-emu/soft-fp.h> 862306a36Sopenharmony_ci#include <math-emu/double.h> 962306a36Sopenharmony_ci#include <math-emu/single.h> 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ciint 1262306a36Sopenharmony_cistfs(void *frS, void *ea) 1362306a36Sopenharmony_ci{ 1462306a36Sopenharmony_ci FP_DECL_D(A); 1562306a36Sopenharmony_ci FP_DECL_S(R); 1662306a36Sopenharmony_ci FP_DECL_EX; 1762306a36Sopenharmony_ci float f; 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci#ifdef DEBUG 2062306a36Sopenharmony_ci printk("%s: S %p, ea %p\n", __func__, frS, ea); 2162306a36Sopenharmony_ci#endif 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci FP_UNPACK_DP(A, frS); 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci#ifdef DEBUG 2662306a36Sopenharmony_ci printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 2762306a36Sopenharmony_ci#endif 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci FP_CONV(S, D, 1, 2, R, A); 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci#ifdef DEBUG 3262306a36Sopenharmony_ci printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c); 3362306a36Sopenharmony_ci#endif 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ci _FP_PACK_CANONICAL(S, 1, R); 3662306a36Sopenharmony_ci if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) { 3762306a36Sopenharmony_ci _FP_PACK_RAW_1_P(S, &f, R); 3862306a36Sopenharmony_ci if (copy_to_user(ea, &f, sizeof(float))) 3962306a36Sopenharmony_ci return -EFAULT; 4062306a36Sopenharmony_ci } 4162306a36Sopenharmony_ci 4262306a36Sopenharmony_ci return FP_CUR_EXCEPTIONS; 4362306a36Sopenharmony_ci} 44