swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
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Tip revision: a2755a80f40e5794ddc20e00f781af9d6320fafb authored by Linus Torvalds on 20 April 2005, 23:24:21 UTC
Linux v2.6.12-rc3
Tip revision: a2755a8
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) */
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