[linux-block.git] / arch / powerpc / math-emu / mtfsfi.c

// 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
mtfsfi(unsigned int crfD, unsigned int IMM)
{
	u32 mask = 0xf;

	if (!crfD)
		mask = 9;

	__FPU_FPSCR &= ~(mask << ((7 - crfD) << 2));
	__FPU_FPSCR |= (IMM & 0xf) << ((7 - crfD) << 2);

#ifdef DEBUG
	printk("%s: %d %x: %08lx\n", __func__, crfD, IMM, __FPU_FPSCR);
#endif

	return 0;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	#include <linux/types.h>
1da177e4 LT	3	#include <linux/errno.h>
7c0f6ba6	4	#include <linux/uaccess.h>
1da177e4	5
d2b194ed KG	6	#include <asm/sfp-machine.h>
d2b194ed KG	7	#include <math-emu/soft-fp.h>
1da177e4 LT	8
	9	int
	10	mtfsfi(unsigned int crfD, unsigned int IMM)
	11	{
	12	u32 mask = 0xf;
	13
	14	if (!crfD)
	15	mask = 9;
	16
	17	__FPU_FPSCR &= ~(mask << ((7 - crfD) << 2));
	18	__FPU_FPSCR \|= (IMM & 0xf) << ((7 - crfD) << 2);
	19
	20	#ifdef DEBUG
e48b1b45	21	printk("%s: %d %x: %08lx\n", __func__, crfD, IMM, __FPU_FPSCR);
1da177e4 LT	22	#endif
	23
	24	return 0;
	25	}