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
14 struct fpustate {
15 u32 regs[64];
16 };
17
18 #define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs)
19
20 static 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
29 static inline void fprs_write(unsigned long val)
30 {
31 __asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));
32 }
33
34 #endif /* !(_SPARC64_FPUMACRO_H) */
35
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