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authorRalf Baechle <ralf@linux-mips.org>2007-10-16 23:29:42 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:57 -0700
commit622a9edd919de98ef59571ae6c40c7458244e3f2 (patch)
treec25684f90ed52c459c39d97d6ab641fe3bb6b09d /arch
parentbc154b1efb7f8430ea9faabd5953ebc411f8ead5 (diff)
downloadop-kernel-dev-622a9edd919de98ef59571ae6c40c7458244e3f2.zip
op-kernel-dev-622a9edd919de98ef59571ae6c40c7458244e3f2.tar.gz
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.c6
-rw-r--r--arch/mips/mm/cache.c2
-rw-r--r--arch/sh/drivers/pci/dma-dreamcast.c2
-rw-r--r--arch/sh/mm/consistent.c8
-rw-r--r--arch/sh64/mm/consistent.c3
5 files changed, 10 insertions, 11 deletions
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index 099212d..177fea8 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 43dde87..81f30ac 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 230d6ec..888a340 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 38c82d8..e220c29 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 8875a2a..c439620 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;
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