remove hwsw_dma_ops

This removes remove hwsw_dma_ops (and hwsw_*
functions). hwsw_dma_get_ops can select swiotlb_dma_ops and
sba_dma_ops appropriately.

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 23:36:17 +09:00 committed by Ingo Molnar
parent c190ab0b2a
commit c7b3aee8af
2 changed files with 14 additions and 171 deletions

View file

@ -17,55 +17,33 @@
#include <linux/swiotlb.h>
#include <asm/machvec.h>
extern struct dma_mapping_ops sba_dma_ops, swiotlb_dma_ops;
/* swiotlb declarations & definitions: */
extern int swiotlb_late_init_with_default_size (size_t size);
/* hwiommu declarations & definitions: */
extern void *sba_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
extern void sba_free_coherent (struct device *, size_t, void *, dma_addr_t);
extern dma_addr_t sba_map_single_attrs(struct device *, void *, size_t, int,
struct dma_attrs *);
extern void sba_unmap_single_attrs(struct device *, dma_addr_t, size_t, int,
struct dma_attrs *);
extern int sba_map_sg_attrs(struct device *, struct scatterlist *, int, int,
struct dma_attrs *);
extern void sba_unmap_sg_attrs(struct device *, struct scatterlist *, int, int,
struct dma_attrs *);
extern int sba_dma_supported (struct device *, u64);
extern int sba_dma_mapping_error(struct device *, dma_addr_t);
#define hwiommu_alloc_coherent sba_alloc_coherent
#define hwiommu_free_coherent sba_free_coherent
#define hwiommu_map_single_attrs sba_map_single_attrs
#define hwiommu_unmap_single_attrs sba_unmap_single_attrs
#define hwiommu_map_sg_attrs sba_map_sg_attrs
#define hwiommu_unmap_sg_attrs sba_unmap_sg_attrs
#define hwiommu_dma_supported sba_dma_supported
#define hwiommu_dma_mapping_error sba_dma_mapping_error
#define hwiommu_sync_single_for_cpu machvec_dma_sync_single
#define hwiommu_sync_sg_for_cpu machvec_dma_sync_sg
#define hwiommu_sync_single_for_device machvec_dma_sync_single
#define hwiommu_sync_sg_for_device machvec_dma_sync_sg
/*
* Note: we need to make the determination of whether or not to use
* the sw I/O TLB based purely on the device structure. Anything else
* would be unreliable or would be too intrusive.
*/
static inline int
use_swiotlb (struct device *dev)
static inline int use_swiotlb(struct device *dev)
{
return dev && dev->dma_mask && !hwiommu_dma_supported(dev, *dev->dma_mask);
return dev && dev->dma_mask &&
!sba_dma_ops.dma_supported_op(dev, *dev->dma_mask);
}
struct dma_mapping_ops hwsw_dma_ops;
struct dma_mapping_ops *hwsw_dma_get_ops(struct device *dev)
{
if (use_swiotlb(dev))
return &swiotlb_dma_ops;
return &sba_dma_ops;
}
EXPORT_SYMBOL(hwsw_dma_get_ops);
void __init
hwsw_init (void)
{
dma_ops = &hwsw_dma_ops;
/* default to a smallish 2MB sw I/O TLB */
if (swiotlb_late_init_with_default_size (2 * (1<<20)) != 0) {
#ifdef CONFIG_IA64_GENERIC
@ -78,140 +56,3 @@ hwsw_init (void)
#endif
}
}
void *
hwsw_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags)
{
if (use_swiotlb(dev))
return swiotlb_alloc_coherent(dev, size, dma_handle, flags);
else
return hwiommu_alloc_coherent(dev, size, dma_handle, flags);
}
void
hwsw_free_coherent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle)
{
if (use_swiotlb(dev))
swiotlb_free_coherent(dev, size, vaddr, dma_handle);
else
hwiommu_free_coherent(dev, size, vaddr, dma_handle);
}
dma_addr_t
hwsw_map_single_attrs(struct device *dev, void *addr, size_t size, int dir,
struct dma_attrs *attrs)
{
if (use_swiotlb(dev))
return swiotlb_map_single_attrs(dev, addr, size, dir, attrs);
else
return hwiommu_map_single_attrs(dev, addr, size, dir, attrs);
}
EXPORT_SYMBOL(hwsw_map_single_attrs);
void
hwsw_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
int dir, struct dma_attrs *attrs)
{
if (use_swiotlb(dev))
return swiotlb_unmap_single_attrs(dev, iova, size, dir, attrs);
else
return hwiommu_unmap_single_attrs(dev, iova, size, dir, attrs);
}
EXPORT_SYMBOL(hwsw_unmap_single_attrs);
int
hwsw_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents,
int dir, struct dma_attrs *attrs)
{
if (use_swiotlb(dev))
return swiotlb_map_sg_attrs(dev, sglist, nents, dir, attrs);
else
return hwiommu_map_sg_attrs(dev, sglist, nents, dir, attrs);
}
EXPORT_SYMBOL(hwsw_map_sg_attrs);
void
hwsw_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents,
int dir, struct dma_attrs *attrs)
{
if (use_swiotlb(dev))
return swiotlb_unmap_sg_attrs(dev, sglist, nents, dir, attrs);
else
return hwiommu_unmap_sg_attrs(dev, sglist, nents, dir, attrs);
}
EXPORT_SYMBOL(hwsw_unmap_sg_attrs);
void
hwsw_sync_single_for_cpu (struct device *dev, dma_addr_t addr, size_t size, int dir)
{
if (use_swiotlb(dev))
swiotlb_sync_single_for_cpu(dev, addr, size, dir);
else
hwiommu_sync_single_for_cpu(dev, addr, size, dir);
}
void
hwsw_sync_sg_for_cpu (struct device *dev, struct scatterlist *sg, int nelems, int dir)
{
if (use_swiotlb(dev))
swiotlb_sync_sg_for_cpu(dev, sg, nelems, dir);
else
hwiommu_sync_sg_for_cpu(dev, sg, nelems, dir);
}
void
hwsw_sync_single_for_device (struct device *dev, dma_addr_t addr, size_t size, int dir)
{
if (use_swiotlb(dev))
swiotlb_sync_single_for_device(dev, addr, size, dir);
else
hwiommu_sync_single_for_device(dev, addr, size, dir);
}
void
hwsw_sync_sg_for_device (struct device *dev, struct scatterlist *sg, int nelems, int dir)
{
if (use_swiotlb(dev))
swiotlb_sync_sg_for_device(dev, sg, nelems, dir);
else
hwiommu_sync_sg_for_device(dev, sg, nelems, dir);
}
int
hwsw_dma_supported (struct device *dev, u64 mask)
{
if (hwiommu_dma_supported(dev, mask))
return 1;
return swiotlb_dma_supported(dev, mask);
}
int
hwsw_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return hwiommu_dma_mapping_error(dev, dma_addr) ||
swiotlb_dma_mapping_error(dev, dma_addr);
}
EXPORT_SYMBOL(hwsw_dma_mapping_error);
EXPORT_SYMBOL(hwsw_dma_supported);
EXPORT_SYMBOL(hwsw_alloc_coherent);
EXPORT_SYMBOL(hwsw_free_coherent);
EXPORT_SYMBOL(hwsw_sync_single_for_cpu);
EXPORT_SYMBOL(hwsw_sync_single_for_device);
EXPORT_SYMBOL(hwsw_sync_sg_for_cpu);
EXPORT_SYMBOL(hwsw_sync_sg_for_device);
struct dma_mapping_ops hwsw_dma_ops = {
.alloc_coherent = hwsw_alloc_coherent,
.free_coherent = hwsw_free_coherent,
.map_single_attrs = hwsw_map_single_attrs,
.unmap_single_attrs = hwsw_unmap_single_attrs,
.map_sg_attrs = hwsw_map_sg_attrs,
.unmap_sg_attrs = hwsw_unmap_sg_attrs,
.sync_single_for_cpu = hwsw_sync_single_for_cpu,
.sync_sg_for_cpu = hwsw_sync_sg_for_cpu,
.sync_single_for_device = hwsw_sync_single_for_device,
.sync_sg_for_device = hwsw_sync_sg_for_device,
.dma_supported_op = hwsw_dma_supported,
.mapping_error = hwsw_dma_mapping_error,
};

View file

@ -2,6 +2,7 @@
#define _ASM_IA64_MACHVEC_HPZX1_SWIOTLB_h
extern ia64_mv_setup_t dig_setup;
extern ia64_mv_dma_get_ops hwsw_dma_get_ops;
/*
* This stuff has dual use!
@ -13,5 +14,6 @@ extern ia64_mv_setup_t dig_setup;
#define platform_name "hpzx1_swiotlb"
#define platform_setup dig_setup
#define platform_dma_init machvec_noop
#define platform_dma_get_ops hwsw_dma_get_ops
#endif /* _ASM_IA64_MACHVEC_HPZX1_SWIOTLB_h */