xref: /linux/arch/powerpc/math-emu/mtfsb1.c (revision 498495dba268b20e8eadd7fe93c140c68b6cc9d2)
1*b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0
25cd27208SKumar Gala #include <linux/types.h>
35cd27208SKumar Gala #include <linux/errno.h>
47c0f6ba6SLinus Torvalds #include <linux/uaccess.h>
55cd27208SKumar Gala 
6d2b194edSKumar Gala #include <asm/sfp-machine.h>
7d2b194edSKumar Gala #include <math-emu/soft-fp.h>
85cd27208SKumar Gala 
95cd27208SKumar Gala int
mtfsb1(int crbD)105cd27208SKumar Gala mtfsb1(int crbD)
115cd27208SKumar Gala {
125cd27208SKumar Gala 	if ((crbD != 1) && (crbD != 2))
135cd27208SKumar Gala 		__FPU_FPSCR |= (1 << (31 - crbD));
145cd27208SKumar Gala 
155cd27208SKumar Gala #ifdef DEBUG
16e48b1b45SHarvey Harrison 	printk("%s: %d %08lx\n", __func__, crbD, __FPU_FPSCR);
175cd27208SKumar Gala #endif
185cd27208SKumar Gala 
195cd27208SKumar Gala 	return 0;
205cd27208SKumar Gala }
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