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Commit 46bab4e4 authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by Benjamin Herrenschmidt
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powerpc: Use asm-generic/dma-mapping-common.h 

Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: default avatarBecky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 45223c54
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Showing with 7 additions and 241 deletions
arch/powerpc/Kconfig
View file @ 46bab4e4
......@@ -120,7 +120,7 @@ config PPC
select HAVE_KRETPROBES
select HAVE_ARCH_TRACEHOOK
select HAVE_LMB
select HAVE_DMA_ATTRS if PPC64
select HAVE_DMA_ATTRS
select USE_GENERIC_SMP_HELPERS if SMP
select HAVE_OPROFILE
select HAVE_SYSCALL_WRAPPERS if PPC64
......@@ -307,10 +307,6 @@ config SWIOTLB
platforms where the size of a physical address is larger
than the bus address. Not all platforms support this.
config PPC_NEED_DMA_SYNC_OPS
def_bool y
depends on (NOT_COHERENT_CACHE || SWIOTLB)
config HOTPLUG_CPU
bool "Support for enabling/disabling CPUs"
depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
......
arch/powerpc/include/asm/dma-mapping.h
View file @ 46bab4e4
......@@ -14,6 +14,7 @@
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include <linux/dma-attrs.h>
#include <linux/dma-debug.h>
#include <asm/io.h>
#include <asm/swiotlb.h>
......@@ -89,6 +90,11 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
dev->archdata.dma_ops = ops;
}
/* this will be removed soon */
#define flush_write_buffers()
#include <asm-generic/dma-mapping-common.h>
static inline int dma_supported(struct device *dev, u64 mask)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
......@@ -117,87 +123,6 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask)
return 0;
}
/*
* map_/unmap_single actually call through to map/unmap_page now that all the
* dma_map_ops have been converted over. We just have to get the page and
* offset to pass through to map_page
*/
static inline dma_addr_t dma_map_single_attrs(struct device *dev,
void *cpu_addr,
size_t size,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
return dma_ops->map_page(dev, virt_to_page(cpu_addr),
(unsigned long)cpu_addr % PAGE_SIZE, size,
direction, attrs);
}
static inline void dma_unmap_single_attrs(struct device *dev,
dma_addr_t dma_addr,
size_t size,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
dma_ops->unmap_page(dev, dma_addr, size, direction, attrs);
}
static inline dma_addr_t dma_map_page_attrs(struct device *dev,
struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
return dma_ops->map_page(dev, page, offset, size, direction, attrs);
}
static inline void dma_unmap_page_attrs(struct device *dev,
dma_addr_t dma_address,
size_t size,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
dma_ops->unmap_page(dev, dma_address, size, direction, attrs);
}
static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
return dma_ops->map_sg(dev, sg, nents, direction, attrs);
}
static inline void dma_unmap_sg_attrs(struct device *dev,
struct scatterlist *sg,
int nhwentries,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
dma_ops->unmap_sg(dev, sg, nhwentries, direction, attrs);
}
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
{
......@@ -216,161 +141,6 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
}
static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
size_t size,
enum dma_data_direction direction)
{
return dma_map_single_attrs(dev, cpu_addr, size, direction, NULL);
}
static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
size_t size,
enum dma_data_direction direction)
{
dma_unmap_single_attrs(dev, dma_addr, size, direction, NULL);
}
static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction direction)
{
return dma_map_page_attrs(dev, page, offset, size, direction, NULL);
}
static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
size_t size,
enum dma_data_direction direction)
{
dma_unmap_page_attrs(dev, dma_address, size, direction, NULL);
}
static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction)
{
return dma_map_sg_attrs(dev, sg, nents, direction, NULL);
}
static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
int nhwentries,
enum dma_data_direction direction)
{
dma_unmap_sg_attrs(dev, sg, nhwentries, direction, NULL);
}
#ifdef CONFIG_PPC_NEED_DMA_SYNC_OPS
static inline void dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
if (dma_ops->sync_single_range_for_cpu)
dma_ops->sync_single_range_for_cpu(dev, dma_handle, 0,
size, direction);
}
static inline void dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
if (dma_ops->sync_single_range_for_device)
dma_ops->sync_single_range_for_device(dev, dma_handle,
0, size, direction);
}
static inline void dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sgl, int nents,
enum dma_data_direction direction)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
if (dma_ops->sync_sg_for_cpu)
dma_ops->sync_sg_for_cpu(dev, sgl, nents, direction);
}
static inline void dma_sync_sg_for_device(struct device *dev,
struct scatterlist *sgl, int nents,
enum dma_data_direction direction)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
if (dma_ops->sync_sg_for_device)
dma_ops->sync_sg_for_device(dev, sgl, nents, direction);
}
static inline void dma_sync_single_range_for_cpu(struct device *dev,
dma_addr_t dma_handle, unsigned long offset, size_t size,
enum dma_data_direction direction)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
if (dma_ops->sync_single_range_for_cpu)
dma_ops->sync_single_range_for_cpu(dev, dma_handle,
offset, size, direction);
}
static inline void dma_sync_single_range_for_device(struct device *dev,
dma_addr_t dma_handle, unsigned long offset, size_t size,
enum dma_data_direction direction)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
if (dma_ops->sync_single_range_for_device)
dma_ops->sync_single_range_for_device(dev, dma_handle, offset,
size, direction);
}
#else /* CONFIG_PPC_NEED_DMA_SYNC_OPS */
static inline void dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)
{
}
static inline void dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)
{
}
static inline void dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sgl, int nents,
enum dma_data_direction direction)
{
}
static inline void dma_sync_sg_for_device(struct device *dev,
struct scatterlist *sgl, int nents,
enum dma_data_direction direction)
{
}
static inline void dma_sync_single_range_for_cpu(struct device *dev,
dma_addr_t dma_handle, unsigned long offset, size_t size,
enum dma_data_direction direction)
{
}
static inline void dma_sync_single_range_for_device(struct device *dev,
dma_addr_t dma_handle, unsigned long offset, size_t size,
enum dma_data_direction direction)
{
}
#endif
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
#ifdef CONFIG_PPC64
......
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