]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
a00736e9 SR |
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) */ |