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> | |
| 1da177e4 LT |
9 | |
| 10 | int | |
| 11 | fsel(u32 *frD, void *frA, u32 *frB, u32 *frC) | |
| 12 | { | |
| 13 | FP_DECL_D(A); | |
| d2b194ed | 14 | FP_DECL_EX; |
| 1da177e4 LT |
15 | |
| 16 | #ifdef DEBUG | |
| e48b1b45 | 17 | printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC); |
| 1da177e4 LT |
18 | #endif |
| 19 | ||
| d2b194ed | 20 | FP_UNPACK_DP(A, frA); |
| 1da177e4 LT |
21 | |
| 22 | #ifdef DEBUG | |
| 23 | printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); | |
| 24 | printk("B: %08x %08x\n", frB[0], frB[1]); | |
| 25 | printk("C: %08x %08x\n", frC[0], frC[1]); | |
| 26 | #endif | |
| 27 | ||
| 28 | if (A_c == FP_CLS_NAN || (A_c != FP_CLS_ZERO && A_s)) { | |
| 29 | frD[0] = frB[0]; | |
| 30 | frD[1] = frB[1]; | |
| 31 | } else { | |
| 32 | frD[0] = frC[0]; | |
| 33 | frD[1] = frC[1]; | |
| 34 | } | |
| 35 | ||
| 36 | #ifdef DEBUG | |
| 37 | printk("D: %08x.%08x\n", frD[0], frD[1]); | |
| 38 | #endif | |
| 39 | ||
| 40 | return 0; | |
| 41 | } |