| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #include <linux/types.h> |
| 2 | #include <linux/errno.h> |
| 3 | #include <asm/uaccess.h> |
| 4 | |
| 5 | #include "soft-fp.h" |
| 6 | #include "double.h" |
| 7 | #include "single.h" |
| 8 | |
| 9 | int |
| 10 | lfs(void *frD, void *ea) |
| 11 | { |
| 12 | FP_DECL_D(R); |
| 13 | FP_DECL_S(A); |
| 14 | float f; |
| 15 | |
| 16 | #ifdef DEBUG |
| Harvey Harrison | e48b1b4 | 2008-03-29 08:21:07 +1100 | [diff] [blame] | 17 | printk("%s: D %p, ea %p\n", __func__, frD, ea); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #endif |
| 19 | |
| 20 | if (copy_from_user(&f, ea, sizeof(float))) |
| 21 | return -EFAULT; |
| 22 | |
| 23 | __FP_UNPACK_S(A, &f); |
| 24 | |
| 25 | #ifdef DEBUG |
| 26 | printk("A: %ld %lu %ld (%ld) [%08lx]\n", A_s, A_f, A_e, A_c, |
| 27 | *(unsigned long *)&f); |
| 28 | #endif |
| 29 | |
| 30 | FP_CONV(D, S, 2, 1, R, A); |
| 31 | |
| 32 | #ifdef DEBUG |
| 33 | printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); |
| 34 | #endif |
| 35 | |
| 36 | return __FP_PACK_D(frD, R); |
| 37 | } |