mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 05:34:00 +08:00
5cd272085b
Towards the goal of having arch/powerpc not build anything over in arch/ppc move math-emu over. Also, killed some references to arch/ppc/ in the arch/powerpc Makefile which should belong in drivers/ when the particular sub-arch's move over to arch/powerpc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
32 lines
552 B
C
32 lines
552 B
C
#include <linux/types.h>
|
|
#include <linux/errno.h>
|
|
#include <asm/uaccess.h>
|
|
|
|
#include "soft-fp.h"
|
|
|
|
int
|
|
mcrfs(u32 *ccr, u32 crfD, u32 crfS)
|
|
{
|
|
u32 value, clear;
|
|
|
|
#ifdef DEBUG
|
|
printk("%s: %p (%08x) %d %d\n", __FUNCTION__, 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", __FUNCTION__, *ccr);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|