| /* fpumacro.h: FPU related macros. |
| * |
| * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
| * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) |
| */ |
| |
| #ifndef _SPARC64_FPUMACRO_H |
| #define _SPARC64_FPUMACRO_H |
| |
| #include <asm/asi.h> |
| #include <asm/visasm.h> |
| |
| struct fpustate { |
| u32 regs[64]; |
| }; |
| |
| #define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs) |
| |
| static __inline__ unsigned long fprs_read(void) |
| { |
| unsigned long retval; |
| |
| __asm__ __volatile__("rd %%fprs, %0" : "=r" (retval)); |
| |
| return retval; |
| } |
| |
| static __inline__ void fprs_write(unsigned long val) |
| { |
| __asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val)); |
| } |
| |
| #endif /* !(_SPARC64_FPUMACRO_H) */ |