URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-sparc64/] [fpumacro.h] - Blame information for rev 1774

Go to most recent revision | Details | Compare with Previous | View Log


/* 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 *)(((unsigned long)current) + AOFF_task_fpregs)
 
extern __inline__ unsigned long fprs_read(void)
{
        unsigned long retval;
 
        __asm__ __volatile__("rd %%fprs, %0" : "=r" (retval));
 
        return retval;
}
 
extern __inline__ void fprs_write(unsigned long val)
{
        __asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));
}
 
#endif /* !(_SPARC64_FPUMACRO_H) */

Line No.	Rev	Author	Line
1	1276	phoenix	`/* 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 *)(((unsigned long)current) + AOFF_task_fpregs)`
18
19			`extern __inline__ unsigned long fprs_read(void)`
20			`{`
21			`unsigned long retval;`
22
23			`__asm__ __volatile__("rd %%fprs, %0" : "=r" (retval));`
24
25			`return retval;`
26			`}`
27
28			`extern __inline__ void fprs_write(unsigned long val)`
29			`{`
30			`__asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));`
31			`}`
32
33			`#endif /* !(_SPARC64_FPUMACRO_H) */`

Browse

Tools

Subversion Repositories or1k

[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-sparc64/] [fpumacro.h] - Blame information for rev 1774