aboutsummaryrefslogblamecommitdiffstats
path: root/include/asm-sparc64/fpumacro.h
blob: cc463fec806fc4c7e6cbdb5197b92233d52c4c84 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

















                                                                   
                                           







                                                              
                                                




                                                                 
/* fpumacro.h: FPU related macros.
 *
 * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
 */

#ifndef _SPARC64_FPUMACRO_H
#define _SPARC64_FPUMACRO_H

#include <asm/asi.h>
#include <asm/visasm.h>

struct fpustate {
	u32	regs[64];
};

#define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs)

static inline unsigned long fprs_read(void)
{
	unsigned long retval;

	__asm__ __volatile__("rd %%fprs, %0" : "=r" (retval));

	return retval;
}

static inline void fprs_write(unsigned long val)
{
	__asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));
}

#endif /* !(_SPARC64_FPUMACRO_H) */