xref: /OK3568_Linux_fs/kernel/arch/powerpc/math-emu/mtfsb1.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun #include <linux/types.h>
3*4882a593Smuzhiyun #include <linux/errno.h>
4*4882a593Smuzhiyun #include <linux/uaccess.h>
5*4882a593Smuzhiyun 
6*4882a593Smuzhiyun #include <asm/sfp-machine.h>
7*4882a593Smuzhiyun #include <math-emu/soft-fp.h>
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun int
mtfsb1(int crbD)10*4882a593Smuzhiyun mtfsb1(int crbD)
11*4882a593Smuzhiyun {
12*4882a593Smuzhiyun 	if ((crbD != 1) && (crbD != 2))
13*4882a593Smuzhiyun 		__FPU_FPSCR |= (1 << (31 - crbD));
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun #ifdef DEBUG
16*4882a593Smuzhiyun 	printk("%s: %d %08lx\n", __func__, crbD, __FPU_FPSCR);
17*4882a593Smuzhiyun #endif
18*4882a593Smuzhiyun 
19*4882a593Smuzhiyun 	return 0;
20*4882a593Smuzhiyun }
21