Remove dma_cache_(wback|inv|wback_inv) functions

dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized
cache managment API for I/O purposes.  Originally it was basically the raw
MIPS low level cache API exported to the entire world.  The API has
suffered from a lack of documentation, was not very widely used unlike it's
more modern brothers and can easily be replaced by dma_cache_sync.  So
remove it rsp.  turn the surviving bits back into an arch private API, as
discussed on linux-arch.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 4 deletions

diff --git a/include/asm-blackfin/io.h b/include/asm-blackfin/io.h
index 525179bf43d7..d1d2e6be3b59 100644
--- a/include/asm-blackfin/io.h
+++ b/include/asm-blackfin/io.h
@@ -183,10 +183,6 @@ extern void blkfin_inv_cache_all(void);
 #define ioport_map(port, nr)            ((void __iomem*)(port))
 #define ioport_unmap(addr)
 
-#define dma_cache_inv(_start,_size) do { blkfin_inv_cache_all();} while (0)
-#define dma_cache_wback(_start,_size) do { } while (0)
-#define dma_cache_wback_inv(_start,_size) do { blkfin_inv_cache_all();} while (0)
-
 /* Pages to physical address... */
 #define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)
 #define page_to_bus(page)       ((page - mem_map) << PAGE_SHIFT)