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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 <[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]>
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24 changed files with 19 additions and 193 deletions
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@ -270,11 +270,6 @@ extern void outsl (unsigned long port, const void *src, unsigned long count);
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/* IO Port space is : BBiiii where BB is HBA number. */
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#define IO_SPACE_LIMIT 0x00ffffff
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#define dma_cache_inv(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0)
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#define dma_cache_wback(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0)
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#define dma_cache_wback_inv(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0)
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/* PA machines have an MM I/O space from 0xf0000000-0xffffffff in 32
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* bit mode and from 0xfffffffff0000000-0xfffffffffffffff in 64 bit
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* mode (essentially just sign extending. This macro takes in a 32
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