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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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6
arch/sparc/include/asm/floppy_32.h
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@@ -229,10 +229,7 @@ static inline void virtual_dma_init(void)
static inline void sun_fd_disable_dma(void)
{
doing_pdma = 0;
if (pdma_base) {
mmu_unlockarea(pdma_base, pdma_areasize);
pdma_base = NULL;
}
pdma_base = NULL;
}
static inline void sun_fd_set_dma_mode(int mode)
@@ -262,7 +259,6 @@ static inline void sun_fd_set_dma_count(int length)
static inline void sun_fd_enable_dma(void)
{
pdma_vaddr = mmu_lockarea(pdma_vaddr, pdma_size);
pdma_base = pdma_vaddr;
pdma_areasize = pdma_size;
}