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| author | David S. Miller <davem@davemloft.net> | 2012-05-13 13:23:16 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-13 13:23:16 -0700 |
| commit | 679bea5e438df70b5d4348fd2da4501aaeacebe0 (patch) | |
| tree | 476c87af4c16b665d0f6bd8c3067f10b47507746 /arch/sparc/mm/iommu.c | |
| parent | f613914efcc566245cd605bde6943fb5c2cd4ba3 (diff) | |
| download | linux-stable-679bea5e438df70b5d4348fd2da4501aaeacebe0.tar.gz linux-stable-679bea5e438df70b5d4348fd2da4501aaeacebe0.tar.bz2 linux-stable-679bea5e438df70b5d4348fd2da4501aaeacebe0.zip | |
sparc: Kill mmu_{un,}lockarea().
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>
Diffstat (limited to 'arch/sparc/mm/iommu.c')
| -rw-r--r-- | arch/sparc/mm/iommu.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c index 07fc6a65d9b6..349ba83f1789 100644 --- a/arch/sparc/mm/iommu.c +++ b/arch/sparc/mm/iommu.c @@ -426,20 +426,9 @@ static void iommu_unmap_dma_area(struct device *dev, unsigned long busa, int len } #endif -static char *iommu_lockarea(char *vaddr, unsigned long len) -{ - return vaddr; -} - -static void iommu_unlockarea(char *vaddr, unsigned long len) -{ -} - void __init ld_mmu_iommu(void) { viking_flush = (BTFIXUPVAL_CALL(flush_page_for_dma) == (unsigned long)viking_flush_page); - BTFIXUPSET_CALL(mmu_lockarea, iommu_lockarea, BTFIXUPCALL_RETO0); - BTFIXUPSET_CALL(mmu_unlockarea, iommu_unlockarea, BTFIXUPCALL_NOP); if (!BTFIXUPVAL_CALL(flush_page_for_dma)) { /* IO coherent chip */ |