projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 1da177e4 LT |
2 | #include <linux/types.h> |
| 3 | #include <linux/errno.h> | |
| 7c0f6ba6 | 4 | #include <linux/uaccess.h> |
| 1da177e4 | 5 | |
| d2b194ed KG |
6 | #include <asm/sfp-machine.h> |
| 7 | #include <math-emu/soft-fp.h> | |
| 8 | #include <math-emu/double.h> | |
| 9 | #include <math-emu/single.h> | |
| 1da177e4 LT |
10 | |
| 11 | int | |
| 12 | stfs(void *frS, void *ea) | |
| 13 | { | |
| 14 | FP_DECL_D(A); | |
| 15 | FP_DECL_S(R); | |
| d2b194ed | 16 | FP_DECL_EX; |
| 1da177e4 | 17 | float f; |
| 1da177e4 LT |
18 | |
| 19 | #ifdef DEBUG | |
| e48b1b45 | 20 | printk("%s: S %p, ea %p\n", __func__, frS, ea); |
| 1da177e4 LT |
21 | #endif |
| 22 | ||
| d2b194ed | 23 | FP_UNPACK_DP(A, frS); |
| 1da177e4 LT |
24 | |
| 25 | #ifdef DEBUG | |
| 26 | printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); | |
| 27 | #endif | |
| 28 | ||
| 29 | FP_CONV(S, D, 1, 2, R, A); | |
| 30 | ||
| 31 | #ifdef DEBUG | |
| 32 | printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c); | |
| 33 | #endif | |
| 34 | ||
| d2b194ed KG |
35 | _FP_PACK_CANONICAL(S, 1, R); |
| 36 | if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) { | |
| 37 | _FP_PACK_RAW_1_P(S, &f, R); | |
| 1da177e4 LT |
38 | if (copy_to_user(ea, &f, sizeof(float))) |
| 39 | return -EFAULT; | |
| 40 | } | |
| 41 | ||
| d2b194ed | 42 | return FP_CUR_EXCEPTIONS; |
| 1da177e4 | 43 | } |