diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2007-10-17 10:29:42 +0400 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 19:42:57 +0400 |
commit | 622a9edd919de98ef59571ae6c40c7458244e3f2 (patch) | |
tree | c25684f90ed52c459c39d97d6ab641fe3bb6b09d /arch | |
parent | bc154b1efb7f8430ea9faabd5953ebc411f8ead5 (diff) | |
download | linux-622a9edd919de98ef59571ae6c40c7458244e3f2.tar.xz |
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>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/avr32/mm/dma-coherent.c | 6 | ||||
-rw-r--r-- | arch/mips/mm/cache.c | 2 | ||||
-rw-r--r-- | arch/sh/drivers/pci/dma-dreamcast.c | 2 | ||||
-rw-r--r-- | arch/sh/mm/consistent.c | 8 | ||||
-rw-r--r-- | arch/sh64/mm/consistent.c | 3 |
5 files changed, 10 insertions, 11 deletions
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c index 099212d4567c..177fea8f7b71 100644 --- a/arch/avr32/mm/dma-coherent.c +++ b/arch/avr32/mm/dma-coherent.c @@ -21,13 +21,13 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size, int direction) switch (direction) { case DMA_FROM_DEVICE: /* invalidate only */ - dma_cache_inv(vaddr, size); + invalidate_dcache_region(vaddr, size); break; case DMA_TO_DEVICE: /* writeback only */ - dma_cache_wback(vaddr, size); + clean_dcache_region(vaddr, size); break; case DMA_BIDIRECTIONAL: /* writeback and invalidate */ - dma_cache_wback_inv(vaddr, size); + flush_dcache_region(vaddr, size); break; default: BUG(); diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index 43dde874f414..81f30ac2bff9 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c @@ -47,8 +47,6 @@ void (*_dma_cache_wback)(unsigned long start, unsigned long size); void (*_dma_cache_inv)(unsigned long start, unsigned long size); EXPORT_SYMBOL(_dma_cache_wback_inv); -EXPORT_SYMBOL(_dma_cache_wback); -EXPORT_SYMBOL(_dma_cache_inv); #endif /* CONFIG_DMA_NONCOHERENT */ diff --git a/arch/sh/drivers/pci/dma-dreamcast.c b/arch/sh/drivers/pci/dma-dreamcast.c index 230d6ec0d239..888a34050599 100644 --- a/arch/sh/drivers/pci/dma-dreamcast.c +++ b/arch/sh/drivers/pci/dma-dreamcast.c @@ -51,7 +51,7 @@ void *dreamcast_consistent_alloc(struct device *dev, size_t size, buf = P2SEGADDR(buf); /* Flush the dcache before we hand off the buffer */ - dma_cache_wback_inv((void *)buf, size); + __flush_purge_region((void *)buf, size); return (void *)buf; } diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index 38c82d890ffd..e220c29a3c00 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c @@ -34,7 +34,7 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle) /* * We must flush the cache before we pass it on to the device */ - dma_cache_wback_inv(ret, size); + __flush_purge_region(ret, size); page = virt_to_page(ret); free = page + (size >> PAGE_SHIFT); @@ -68,13 +68,13 @@ void consistent_sync(void *vaddr, size_t size, int direction) switch (direction) { case DMA_FROM_DEVICE: /* invalidate only */ - dma_cache_inv(p1addr, size); + __flush_invalidate_region(p1addr, size); break; case DMA_TO_DEVICE: /* writeback only */ - dma_cache_wback(p1addr, size); + __flush_wback_region(p1addr, size); break; case DMA_BIDIRECTIONAL: /* writeback and invalidate */ - dma_cache_wback_inv(p1addr, size); + __flush_purge_region(p1addr, size); break; default: BUG(); diff --git a/arch/sh64/mm/consistent.c b/arch/sh64/mm/consistent.c index 8875a2a40da7..c439620402cb 100644 --- a/arch/sh64/mm/consistent.c +++ b/arch/sh64/mm/consistent.c @@ -11,6 +11,7 @@ #include <linux/mm.h> #include <linux/string.h> #include <linux/pci.h> +#include <linux/dma-mapping.h> #include <linux/module.h> #include <asm/io.h> @@ -32,7 +33,7 @@ void *consistent_alloc(struct pci_dev *hwdev, size_t size, if (vp != NULL) { memset(vp, 0, size); *dma_handle = virt_to_phys(ret); - dma_cache_wback_inv((unsigned long)ret, size); + dma_cache_sync(NULL, ret, size, DMA_BIDIRECTIONAL); } return vp; |