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x86, ia64: convert to use generic dma_map_ops struct

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This converts X86 and IA64 to use include/linux/dma-mapping.h.

It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
FUJITA Tomonori
2009-01-05 23:59:02 +09:00
committed by Ingo Molnar
parent f0402a262e
commit 160c1d8e40
24 changed files with 277 additions and 377 deletions
Download Patch File Download Diff File Expand all files Collapse all files

144
arch/x86/include/asm/dma-mapping.h
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@@ -17,50 +17,9 @@ extern int iommu_merge;
extern struct device x86_dma_fallback_dev;
extern int panic_on_overflow;
struct dma_mapping_ops {
int (*mapping_error)(struct device *dev,
dma_addr_t dma_addr);
void* (*alloc_coherent)(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp);
void (*free_coherent)(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
void (*sync_single_for_cpu)(struct device *hwdev,
dma_addr_t dma_handle, size_t size,
int direction);
void (*sync_single_for_device)(struct device *hwdev,
dma_addr_t dma_handle, size_t size,
int direction);
void (*sync_single_range_for_cpu)(struct device *hwdev,
dma_addr_t dma_handle, unsigned long offset,
size_t size, int direction);
void (*sync_single_range_for_device)(struct device *hwdev,
dma_addr_t dma_handle, unsigned long offset,
size_t size, int direction);
void (*sync_sg_for_cpu)(struct device *hwdev,
struct scatterlist *sg, int nelems,
int direction);
void (*sync_sg_for_device)(struct device *hwdev,
struct scatterlist *sg, int nelems,
int direction);
int (*map_sg)(struct device *hwdev, struct scatterlist *sg,
int nents, int direction);
void (*unmap_sg)(struct device *hwdev,
struct scatterlist *sg, int nents,
int direction);
dma_addr_t (*map_page)(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction dir,
struct dma_attrs *attrs);
void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
size_t size, enum dma_data_direction dir,
struct dma_attrs *attrs);
int (*dma_supported)(struct device *hwdev, u64 mask);
int is_phys;
};
extern struct dma_map_ops *dma_ops;
extern struct dma_mapping_ops *dma_ops;
static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifdef CONFIG_X86_32
return dma_ops;
@@ -75,7 +34,7 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
/* Make sure we keep the same behaviour */
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
struct dma_mapping_ops *ops = get_dma_ops(dev);
struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->mapping_error)
return ops->mapping_error(dev, dma_addr);
@@ -94,138 +53,139 @@ extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
static inline dma_addr_t
dma_map_single(struct device *hwdev, void *ptr, size_t size,
int direction)
enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
return ops->map_page(hwdev, virt_to_page(ptr),
(unsigned long)ptr & ~PAGE_MASK, size,
direction, NULL);
dir, NULL);
}
static inline void
dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
int direction)
enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(dev);
struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
ops->unmap_page(dev, addr, size, direction, NULL);
ops->unmap_page(dev, addr, size, dir, NULL);
}
static inline int
dma_map_sg(struct device *hwdev, struct scatterlist *sg,
int nents, int direction)
int nents, enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
return ops->map_sg(hwdev, sg, nents, direction);
BUG_ON(!valid_dma_direction(dir));
return ops->map_sg(hwdev, sg, nents, dir, NULL);
}
static inline void
dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
int direction)
enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_sg)
ops->unmap_sg(hwdev, sg, nents, direction);
ops->unmap_sg(hwdev, sg, nents, dir, NULL);
}
static inline void
dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
size_t size, int direction)
size_t size, enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_cpu)
ops->sync_single_for_cpu(hwdev, dma_handle, size, direction);
ops->sync_single_for_cpu(hwdev, dma_handle, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle,
size_t size, int direction)
size_t size, enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_device)
ops->sync_single_for_device(hwdev, dma_handle, size, direction);
ops->sync_single_for_device(hwdev, dma_handle, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
unsigned long offset, size_t size, int direction)
unsigned long offset, size_t size,
enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_range_for_cpu)
ops->sync_single_range_for_cpu(hwdev, dma_handle, offset,
size, direction);
size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle,
unsigned long offset, size_t size,
int direction)
enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_range_for_device)
ops->sync_single_range_for_device(hwdev, dma_handle,
offset, size, direction);
offset, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
int nelems, int direction)
int nelems, enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_cpu)
ops->sync_sg_for_cpu(hwdev, sg, nelems, direction);
ops->sync_sg_for_cpu(hwdev, sg, nelems, dir);
flush_write_buffers();
}
static inline void
dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
int nelems, int direction)
int nelems, enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(hwdev);
struct dma_map_ops *ops = get_dma_ops(hwdev);
BUG_ON(!valid_dma_direction(direction));
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_device)
ops->sync_sg_for_device(hwdev, sg, nelems, direction);
ops->sync_sg_for_device(hwdev, sg, nelems, dir);
flush_write_buffers();
}
static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
size_t offset, size_t size,
int direction)
enum dma_data_direction dir)
{
struct dma_mapping_ops *ops = get_dma_ops(dev);
struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(direction));
return ops->map_page(dev, page, offset, size, direction, NULL);
BUG_ON(!valid_dma_direction(dir));
return ops->map_page(dev, page, offset, size, dir, NULL);
}
static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
size_t size, int direction)
size_t size, enum dma_data_direction dir)
{
dma_unmap_single(dev, addr, size, direction);
dma_unmap_single(dev, addr, size, dir);
}
static inline void
@@ -271,7 +231,7 @@ static inline void *
dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t gfp)
{
struct dma_mapping_ops *ops = get_dma_ops(dev);
struct dma_map_ops *ops = get_dma_ops(dev);
void *memory;
gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
@@ -297,7 +257,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
static inline void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t bus)
{
struct dma_mapping_ops *ops = get_dma_ops(dev);
struct dma_map_ops *ops = get_dma_ops(dev);
WARN_ON(irqs_disabled()); /* for portability */