m68k: Reformat arch/m68k/mm/hwtest.c
No functional changes Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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1 changed files with 40 additions and 38 deletions
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@ -25,32 +25,32 @@
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#include <linux/module.h>
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int hwreg_present( volatile void *regp )
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int hwreg_present(volatile void *regp)
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{
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int ret = 0;
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unsigned long flags;
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long save_sp, save_vbr;
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long tmp_vectors[3];
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int ret = 0;
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unsigned long flags;
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long save_sp, save_vbr;
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long tmp_vectors[3];
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local_irq_save(flags);
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__asm__ __volatile__
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( "movec %/vbr,%2\n\t"
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"movel #Lberr1,%4@(8)\n\t"
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"movec %4,%/vbr\n\t"
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"movel %/sp,%1\n\t"
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"moveq #0,%0\n\t"
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"tstb %3@\n\t"
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local_irq_save(flags);
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__asm__ __volatile__ (
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"movec %/vbr,%2\n\t"
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"movel #Lberr1,%4@(8)\n\t"
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"movec %4,%/vbr\n\t"
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"movel %/sp,%1\n\t"
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"moveq #0,%0\n\t"
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"tstb %3@\n\t"
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"nop\n\t"
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"moveq #1,%0\n"
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"Lberr1:\n\t"
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"movel %1,%/sp\n\t"
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"movec %2,%/vbr"
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"moveq #1,%0\n"
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"Lberr1:\n\t"
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"movel %1,%/sp\n\t"
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"movec %2,%/vbr"
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: "=&d" (ret), "=&r" (save_sp), "=&r" (save_vbr)
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: "a" (regp), "a" (tmp_vectors)
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);
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local_irq_restore(flags);
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);
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local_irq_restore(flags);
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return( ret );
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return ret;
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}
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EXPORT_SYMBOL(hwreg_present);
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@ -58,34 +58,36 @@ EXPORT_SYMBOL(hwreg_present);
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* by a bus error handler. Returns 1 if successful, 0 otherwise.
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*/
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int hwreg_write( volatile void *regp, unsigned short val )
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int hwreg_write(volatile void *regp, unsigned short val)
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{
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int ret;
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int ret;
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unsigned long flags;
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long save_sp, save_vbr;
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long tmp_vectors[3];
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long save_sp, save_vbr;
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long tmp_vectors[3];
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local_irq_save(flags);
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__asm__ __volatile__
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( "movec %/vbr,%2\n\t"
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"movel #Lberr2,%4@(8)\n\t"
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"movec %4,%/vbr\n\t"
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"movel %/sp,%1\n\t"
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"moveq #0,%0\n\t"
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"movew %5,%3@\n\t"
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"nop \n\t" /* If this nop isn't present, 'ret' may already be
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* loaded with 1 at the time the bus error
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* happens! */
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"moveq #1,%0\n"
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__asm__ __volatile__ (
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"movec %/vbr,%2\n\t"
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"movel #Lberr2,%4@(8)\n\t"
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"movec %4,%/vbr\n\t"
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"movel %/sp,%1\n\t"
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"moveq #0,%0\n\t"
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"movew %5,%3@\n\t"
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"nop\n\t"
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/*
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* If this nop isn't present, 'ret' may already be loaded
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* with 1 at the time the bus error happens!
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*/
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"moveq #1,%0\n"
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"Lberr2:\n\t"
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"movel %1,%/sp\n\t"
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"movec %2,%/vbr"
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"movel %1,%/sp\n\t"
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"movec %2,%/vbr"
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: "=&d" (ret), "=&r" (save_sp), "=&r" (save_vbr)
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: "a" (regp), "a" (tmp_vectors), "g" (val)
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);
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local_irq_restore(flags);
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return( ret );
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return ret;
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}
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EXPORT_SYMBOL(hwreg_write);
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