Commit | Line | Data |
---|---|---|
a00736e9 SR |
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 | ||
13 | struct fpustate { | |
14 | u32 regs[64]; | |
15 | }; | |
16 | ||
17 | #define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs) | |
18 | ||
19 | static 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 | ||
28 | static inline void fprs_write(unsigned long val) | |
29 | { | |
30 | __asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val)); | |
31 | } | |
32 | ||
33 | #endif /* !(_SPARC64_FPUMACRO_H) */ |