diff options
Diffstat (limited to 'arch/sparc/include/asm/fpumacro.h')
| -rw-r--r-- | arch/sparc/include/asm/fpumacro.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/fpumacro.h b/arch/sparc/include/asm/fpumacro.h new file mode 100644 index 000000000..bc378df97 --- /dev/null +++ b/arch/sparc/include/asm/fpumacro.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* 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) */ |