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sparc: Kill mmu_{un,}lockarea().

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These were used on sun4c during floppy data transfers since on that
chip we had to lock the cpu mappings into the TLB because we cannot
take a TLB miss during the assembler floppy interrupt handler that
does the data transfer.

That is no longer necessary since we've removed sun4c support, thus
this stuff can disappear completely.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2012-05-13 13:23:16 -07:00
parent f613914efc
commit 679bea5e43
7 changed files with 3 additions and 47 deletions
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14
arch/sparc/mm/io-unit.c
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@@ -242,22 +242,8 @@ static void iounit_unmap_dma_area(struct device *dev, unsigned long addr, int le
}
#endif
static char *iounit_lockarea(char *vaddr, unsigned long len)
{
/* FIXME: Write this */
return vaddr;
}
static void iounit_unlockarea(char *vaddr, unsigned long len)
{
/* FIXME: Write this */
}
void __init ld_mmu_iounit(void)
{
BTFIXUPSET_CALL(mmu_lockarea, iounit_lockarea, BTFIXUPCALL_RETO0);
BTFIXUPSET_CALL(mmu_unlockarea, iounit_unlockarea, BTFIXUPCALL_NOP);
BTFIXUPSET_CALL(mmu_get_scsi_one, iounit_get_scsi_one, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(mmu_get_scsi_sgl, iounit_get_scsi_sgl, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(mmu_release_scsi_one, iounit_release_scsi_one, BTFIXUPCALL_NORM);