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powerpc: use dma_map_ops struct

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This converts uses dma_map_ops struct (in include/linux/dma-mapping.h)
instead of POWERPC homegrown dma_mapping_ops.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
FUJITA Tomonori 2009-08-04 19:08:25 +00:00 committed by Benjamin Herrenschmidt
parent f726f30e32
commit 45223c5492
12 changed files with 37 additions and 79 deletions
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4
arch/powerpc/include/asm/device.h
View File

@ -6,7 +6,7 @@
#ifndef _ASM_POWERPC_DEVICE_H
#define _ASM_POWERPC_DEVICE_H
struct dma_mapping_ops;
struct dma_map_ops;
struct device_node;
struct dev_archdata {
@ -14,7 +14,7 @@ struct dev_archdata {
struct device_node *of_node;
/* DMA operations on that device */
struct dma_mapping_ops *dma_ops;
struct dma_map_ops *dma_ops;
void *dma_data;
#ifdef CONFIG_SWIOTLB
dma_addr_t max_direct_dma_addr;

84
arch/powerpc/include/asm/dma-mapping.h
View File

@ -63,57 +63,15 @@ static inline unsigned long device_to_mask(struct device *dev)
return 0xfffffffful;
}
/*
* DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO
*/
struct dma_mapping_ops {
void * (*alloc_coherent)(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag);
void (*free_coherent)(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
int (*map_sg)(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction,
struct dma_attrs *attrs);
void (*unmap_sg)(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction,
struct dma_attrs *attrs);
int (*dma_supported)(struct device *dev, u64 mask);
int (*set_dma_mask)(struct device *dev, u64 dma_mask);
dma_addr_t (*map_page)(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction direction,
struct dma_attrs *attrs);
void (*unmap_page)(struct device *dev,
dma_addr_t dma_address, size_t size,
enum dma_data_direction direction,
struct dma_attrs *attrs);
#ifdef CONFIG_PPC_NEED_DMA_SYNC_OPS
void (*sync_single_range_for_cpu)(struct device *hwdev,
dma_addr_t dma_handle, unsigned long offset,
size_t size,
enum dma_data_direction direction);
void (*sync_single_range_for_device)(struct device *hwdev,
dma_addr_t dma_handle, unsigned long offset,
size_t size,
enum dma_data_direction direction);
void (*sync_sg_for_cpu)(struct device *hwdev,
struct scatterlist *sg, int nelems,
enum dma_data_direction direction);
void (*sync_sg_for_device)(struct device *hwdev,
struct scatterlist *sg, int nelems,
enum dma_data_direction direction);
#endif
};
/*
* Available generic sets of operations
*/
#ifdef CONFIG_PPC64
extern struct dma_mapping_ops dma_iommu_ops;
extern struct dma_map_ops dma_iommu_ops;
#endif
extern struct dma_mapping_ops dma_direct_ops;
extern struct dma_map_ops dma_direct_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)
{
/* We don't handle the NULL dev case for ISA for now. We could
* do it via an out of line call but it is not needed for now. The
@ -126,14 +84,14 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
return dev->archdata.dma_ops;
}
static inline void set_dma_ops(struct device *dev, struct dma_mapping_ops *ops)
static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
}
static inline int dma_supported(struct device *dev, u64 mask)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
if (unlikely(dma_ops == NULL))
return 0;
@ -147,7 +105,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
static inline int dma_set_mask(struct device *dev, u64 dma_mask)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
if (unlikely(dma_ops == NULL))
return -EIO;
@ -161,7 +119,7 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask)
/*
* map_/unmap_single actually call through to map/unmap_page now that all the
* dma_mapping_ops have been converted over. We just have to get the page and
* 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,
@ -170,7 +128,7 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -185,7 +143,7 @@ static inline void dma_unmap_single_attrs(struct device *dev,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -198,7 +156,7 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -211,7 +169,7 @@ static inline void dma_unmap_page_attrs(struct device *dev,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -222,7 +180,7 @@ 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_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
return dma_ops->map_sg(dev, sg, nents, direction, attrs);
@ -234,7 +192,7 @@ static inline void dma_unmap_sg_attrs(struct device *dev,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
dma_ops->unmap_sg(dev, sg, nhwentries, direction, attrs);
@ -243,7 +201,7 @@ static inline void dma_unmap_sg_attrs(struct device *dev,
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
@ -252,7 +210,7 @@ static inline void *dma_alloc_coherent(struct device *dev, size_t size,
static inline void dma_free_coherent(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_handle)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
@ -304,7 +262,7 @@ 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_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -317,7 +275,7 @@ 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_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -330,7 +288,7 @@ static inline void dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sgl, int nents,
enum dma_data_direction direction)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -342,7 +300,7 @@ static inline void dma_sync_sg_for_device(struct device *dev,
struct scatterlist *sgl, int nents,
enum dma_data_direction direction)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -354,7 +312,7 @@ 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_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);
@ -367,7 +325,7 @@ 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_mapping_ops *dma_ops = get_dma_ops(dev);
struct dma_map_ops *dma_ops = get_dma_ops(dev);
BUG_ON(!dma_ops);

4
arch/powerpc/include/asm/pci.h
View File

@ -61,8 +61,8 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
}
#ifdef CONFIG_PCI
extern void set_pci_dma_ops(struct dma_mapping_ops *dma_ops);
extern struct dma_mapping_ops *get_pci_dma_ops(void);
extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
extern struct dma_map_ops *get_pci_dma_ops(void);
#else /* CONFIG_PCI */
#define set_pci_dma_ops(d)
#define get_pci_dma_ops() NULL

2
arch/powerpc/include/asm/swiotlb.h
View File

@ -13,7 +13,7 @@
#include <linux/swiotlb.h>
extern struct dma_mapping_ops swiotlb_dma_ops;
extern struct dma_map_ops swiotlb_dma_ops;
static inline void dma_mark_clean(void *addr, size_t size) {}

2
arch/powerpc/kernel/dma-iommu.c
View File

@ -89,7 +89,7 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask)
return 1;
}
struct dma_mapping_ops dma_iommu_ops = {
struct dma_map_ops dma_iommu_ops = {
.alloc_coherent = dma_iommu_alloc_coherent,
.free_coherent = dma_iommu_free_coherent,
.map_sg = dma_iommu_map_sg,

2
arch/powerpc/kernel/dma-swiotlb.c
View File

@ -31,7 +31,7 @@ unsigned int ppc_swiotlb_enable;
* map_page, and unmap_page on highmem, use normal dma_ops
* for everything else.
*/
struct dma_mapping_ops swiotlb_dma_ops = {
struct dma_map_ops swiotlb_dma_ops = {
.alloc_coherent = dma_direct_alloc_coherent,
.free_coherent = dma_direct_free_coherent,
.map_sg = swiotlb_map_sg_attrs,

2
arch/powerpc/kernel/dma.c
View File

@ -140,7 +140,7 @@ static inline void dma_direct_sync_single_range(struct device *dev,
}
#endif
struct dma_mapping_ops dma_direct_ops = {
struct dma_map_ops dma_direct_ops = {
.alloc_coherent = dma_direct_alloc_coherent,
.free_coherent = dma_direct_free_coherent,
.map_sg = dma_direct_map_sg,

2
arch/powerpc/kernel/ibmebus.c
View File

@ -127,7 +127,7 @@ static int ibmebus_dma_supported(struct device *dev, u64 mask)
return 1;
}
static struct dma_mapping_ops ibmebus_dma_ops = {
static struct dma_map_ops ibmebus_dma_ops = {
.alloc_coherent = ibmebus_alloc_coherent,
.free_coherent = ibmebus_free_coherent,
.map_sg = ibmebus_map_sg,

6
arch/powerpc/kernel/pci-common.c
View File

@ -50,14 +50,14 @@ resource_size_t isa_mem_base;
unsigned int ppc_pci_flags = 0;
static struct dma_mapping_ops *pci_dma_ops = &dma_direct_ops;
static struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
void set_pci_dma_ops(struct dma_mapping_ops *dma_ops)
void set_pci_dma_ops(struct dma_map_ops *dma_ops)
{
pci_dma_ops = dma_ops;
}
struct dma_mapping_ops *get_pci_dma_ops(void)
struct dma_map_ops *get_pci_dma_ops(void)
{
return pci_dma_ops;
}

2
arch/powerpc/kernel/vio.c
View File

@ -601,7 +601,7 @@ static void vio_dma_iommu_unmap_sg(struct device *dev,
vio_cmo_dealloc(viodev, alloc_size);
}
struct dma_mapping_ops vio_dma_mapping_ops = {
struct dma_map_ops vio_dma_mapping_ops = {
.alloc_coherent = vio_dma_iommu_alloc_coherent,
.free_coherent = vio_dma_iommu_free_coherent,
.map_sg = vio_dma_iommu_map_sg,

2
arch/powerpc/platforms/cell/iommu.c
View File

@ -642,7 +642,7 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask)
static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask);
struct dma_mapping_ops dma_iommu_fixed_ops = {
struct dma_map_ops dma_iommu_fixed_ops = {
.alloc_coherent = dma_fixed_alloc_coherent,
.free_coherent = dma_fixed_free_coherent,
.map_sg = dma_fixed_map_sg,

4
arch/powerpc/platforms/ps3/system-bus.c
View File

@ -694,7 +694,7 @@ static int ps3_dma_supported(struct device *_dev, u64 mask)
return mask >= DMA_BIT_MASK(32);
}
static struct dma_mapping_ops ps3_sb_dma_ops = {
static struct dma_map_ops ps3_sb_dma_ops = {
.alloc_coherent = ps3_alloc_coherent,
.free_coherent = ps3_free_coherent,
.map_sg = ps3_sb_map_sg,
@ -704,7 +704,7 @@ static struct dma_mapping_ops ps3_sb_dma_ops = {
.unmap_page = ps3_unmap_page,
};
static struct dma_mapping_ops ps3_ioc0_dma_ops = {
static struct dma_map_ops ps3_ioc0_dma_ops = {
.alloc_coherent = ps3_alloc_coherent,
.free_coherent = ps3_free_coherent,
.map_sg = ps3_ioc0_map_sg,