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/* 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) */