1/* SPDX-License-Identifier: GPL-2.0 */
 2/* fpumacro.h: FPU related macros.
 3 *
 4 * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 5 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
 6 */
 7
 8#ifndef _SPARC64_FPUMACRO_H
 9#define _SPARC64_FPUMACRO_H
10
11#include <asm/asi.h>
12#include <asm/visasm.h>
13
14struct fpustate {
15	u32	regs[64];
16};
17
18#define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs)
19
20static inline unsigned long fprs_read(void)
21{
22	unsigned long retval;
23
24	__asm__ __volatile__("rd %%fprs, %0" : "=r" (retval));
25
26	return retval;
27}
28
29static inline void fprs_write(unsigned long val)
30{
31	__asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));
32}
33
34#endif /* !(_SPARC64_FPUMACRO_H) */

 
 1/* fpumacro.h: FPU related macros.
 2 *
 3 * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 4 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
 5 */
 6
 7#ifndef _SPARC64_FPUMACRO_H
 8#define _SPARC64_FPUMACRO_H
 9
10#include <asm/asi.h>
11#include <asm/visasm.h>
12
13struct fpustate {
14	u32	regs[64];
15};
16
17#define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs)
18
19static inline unsigned long fprs_read(void)
20{
21	unsigned long retval;
22
23	__asm__ __volatile__("rd %%fprs, %0" : "=r" (retval));
24
25	return retval;
26}
27
28static inline void fprs_write(unsigned long val)
29{
30	__asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));
31}
32
33#endif /* !(_SPARC64_FPUMACRO_H) */