Orange Pi5 kernel

// 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;
}