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Revision 1.1, Fri Oct 3 17:46:45 2008 UTC (9 years ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD 

Merge up to 2.6.27-rc8
Merge of 2.6.x-xfs-melb:linux:32254b 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) */