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| // SPDX-License-Identifier: GPL-2.0
| #include <linux/types.h>
| #include <linux/errno.h>
| #include <linux/uaccess.h>
|
| #include <asm/sfp-machine.h>
| #include <math-emu/soft-fp.h>
|
| int
| mcrfs(u32 *ccr, u32 crfD, u32 crfS)
| {
| u32 value, clear;
|
| #ifdef DEBUG
| printk("%s: %p (%08x) %d %d\n", __func__, ccr, *ccr, crfD, crfS);
| #endif
|
| clear = 15 << ((7 - crfS) << 2);
| if (!crfS)
| clear = 0x90000000;
|
| value = (__FPU_FPSCR >> ((7 - crfS) << 2)) & 15;
| __FPU_FPSCR &= ~(clear);
|
| *ccr &= ~(15 << ((7 - crfD) << 2));
| *ccr |= (value << ((7 - crfD) << 2));
|
| #ifdef DEBUG
| printk("CR: %08x\n", __func__, *ccr);
| #endif
|
| return 0;
| }
|
|
