[BACK]Return to fpumacro.h CVS log [TXT][DIR] Up to [Development] / linux-2.6-xfs / include / asm-sparc64
File: [Development] / linux-2.6-xfs / include / asm-sparc64 / Attic / fpumacro.h (download)

Revision 1.2, Mon Dec 3 16:26:37 2007 UTC (9 years, 10 months ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.1: +2 -2 lines 

Merge up to 2.6.24-rc3
Merge of 2.6.x-xfs-melb:linux:30183b by kenmcd.

/* 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) */