| 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 | |
| 7 | int |
| 8 | mtfsf(unsigned int FM, u32 *frB) |
| 9 | { |
| 10 | u32 mask; |
| 11 | |
| 12 | if (FM == 0) |
| 13 | return 0; |
| 14 | |
| 15 | if (FM == 0xff) |
| 16 | mask = 0x9fffffff; |
| 17 | else { |
| 18 | mask = 0; |
| 19 | if (FM & (1 << 0)) |
| 20 | mask |= 0x90000000; |
| 21 | if (FM & (1 << 1)) |
| 22 | mask |= 0x0f000000; |
| 23 | if (FM & (1 << 2)) |
| 24 | mask |= 0x00f00000; |
| 25 | if (FM & (1 << 3)) |
| 26 | mask |= 0x000f0000; |
| 27 | if (FM & (1 << 4)) |
| 28 | mask |= 0x0000f000; |
| 29 | if (FM & (1 << 5)) |
| 30 | mask |= 0x00000f00; |
| 31 | if (FM & (1 << 6)) |
| 32 | mask |= 0x000000f0; |
| 33 | if (FM & (1 << 7)) |
| 34 | mask |= 0x0000000f; |
| 35 | } |
| 36 | |
| 37 | __FPU_FPSCR &= ~(mask); |
| 38 | __FPU_FPSCR |= (frB[1] & mask); |
| 39 | |
| 40 | #ifdef DEBUG |
| Harvey Harrison | e48b1b4 | 2008-03-29 08:21:07 +1100 | [diff] [blame] | 41 | printk("%s: %02x %p: %08lx\n", __func__, FM, frB, __FPU_FPSCR); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #endif |
| 43 | |
| 44 | return 0; |
| 45 | } |