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m68k: Reformat arch/m68k/mm/hwtest.c

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Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven 2014-09-28 11:18:49 +02:00
parent e4dc601bf9
commit 24cae7934c
1 changed files with 40 additions and 38 deletions
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78
arch/m68k/mm/hwtest.c
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@ -25,32 +25,32 @@
#include <linux/module.h>
int hwreg_present( volatile void *regp )
int hwreg_present(volatile void *regp)
{
int ret = 0;
unsigned long flags;
long save_sp, save_vbr;
long tmp_vectors[3];
int ret = 0;
unsigned long flags;
long save_sp, save_vbr;
long tmp_vectors[3];
local_irq_save(flags);
__asm__ __volatile__
( "movec %/vbr,%2\n\t"
"movel #Lberr1,%4@(8)\n\t"
"movec %4,%/vbr\n\t"
"movel %/sp,%1\n\t"
"moveq #0,%0\n\t"
"tstb %3@\n\t"
local_irq_save(flags);
__asm__ __volatile__ (
"movec %/vbr,%2\n\t"
"movel #Lberr1,%4@(8)\n\t"
"movec %4,%/vbr\n\t"
"movel %/sp,%1\n\t"
"moveq #0,%0\n\t"
"tstb %3@\n\t"
"nop\n\t"
"moveq #1,%0\n"
"Lberr1:\n\t"
"movel %1,%/sp\n\t"
"movec %2,%/vbr"
"moveq #1,%0\n"
"Lberr1:\n\t"
"movel %1,%/sp\n\t"
"movec %2,%/vbr"
: "=&d" (ret), "=&r" (save_sp), "=&r" (save_vbr)
: "a" (regp), "a" (tmp_vectors)
);
local_irq_restore(flags);
);
local_irq_restore(flags);
return( ret );
return ret;
}
EXPORT_SYMBOL(hwreg_present);
@ -58,34 +58,36 @@ EXPORT_SYMBOL(hwreg_present);
* by a bus error handler. Returns 1 if successful, 0 otherwise.
*/
int hwreg_write( volatile void *regp, unsigned short val )
int hwreg_write(volatile void *regp, unsigned short val)
{
int ret;
int ret;
unsigned long flags;
long save_sp, save_vbr;
long tmp_vectors[3];
long save_sp, save_vbr;
long tmp_vectors[3];
local_irq_save(flags);
__asm__ __volatile__
( "movec %/vbr,%2\n\t"
"movel #Lberr2,%4@(8)\n\t"
"movec %4,%/vbr\n\t"
"movel %/sp,%1\n\t"
"moveq #0,%0\n\t"
"movew %5,%3@\n\t"
"nop \n\t" /* If this nop isn't present, 'ret' may already be
* loaded with 1 at the time the bus error
* happens! */
"moveq #1,%0\n"
__asm__ __volatile__ (
"movec %/vbr,%2\n\t"
"movel #Lberr2,%4@(8)\n\t"
"movec %4,%/vbr\n\t"
"movel %/sp,%1\n\t"
"moveq #0,%0\n\t"
"movew %5,%3@\n\t"
"nop\n\t"
/*
* If this nop isn't present, 'ret' may already be loaded
* with 1 at the time the bus error happens!
*/
"moveq #1,%0\n"
"Lberr2:\n\t"
"movel %1,%/sp\n\t"
"movec %2,%/vbr"
"movel %1,%/sp\n\t"
"movec %2,%/vbr"
: "=&d" (ret), "=&r" (save_sp), "=&r" (save_vbr)
: "a" (regp), "a" (tmp_vectors), "g" (val)
);
local_irq_restore(flags);
return( ret );
return ret;
}
EXPORT_SYMBOL(hwreg_write);