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Remove dma_cache_(wback|inv|wback_inv) functions

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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 <[email protected]>
Acked-by: Paul Mundt <[email protected]>
Acked-by: Paul Mackerras <[email protected]>
Acked-by: David S. Miller <[email protected]>
Acked-by: Kyle McMartin <[email protected]>
Acked-by: Haavard Skinnemoen <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Ralf Baechle 2007-10-16 23:29:42 -07:00 • committed by Linus Torvalds
commit 622a9edd91
24 changed files with 19 additions and 193 deletions
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7
include/asm-sparc/io.h
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@ -310,13 +310,6 @@ extern void sbus_iounmap(volatile void __iomem *vaddr, unsigned long size);
#define RTC_PORT(x) (rtc_port + (x))
#define RTC_ALWAYS_BCD 0
/* Nothing to do */
/* P3: Only IDE DMA may need these. XXX Verify that it still does... */
#define dma_cache_inv(_start,_size) do { } while (0)
#define dma_cache_wback(_start,_size) do { } while (0)
#define dma_cache_wback_inv(_start,_size) do { } while (0)
#endif
#define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1