[mirror_ubuntu-artful-kernel.git] / include / asm-sparc64 / fpumacro.h

/* 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) */
Commit	Line	Data
1da177e4 LT	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
d979f179	19	static inline unsigned long fprs_read(void)
1da177e4 LT	20	{
	21	unsigned long retval;
	22
	23	__asm__ __volatile__("rd %%fprs, %0" : "=r" (retval));
	24
	25	return retval;
	26	}
	27
d979f179	28	static inline void fprs_write(unsigned long val)
1da177e4 LT	29	{
	30	__asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));
	31	}
	32
	33	#endif /* !(_SPARC64_FPUMACRO_H) */