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ssb: remove the ssb DMA API

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Now they are unnecessary.  We can use the generic DMA API with any bus.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Michael Buesch <mb@bu3sch.de>
Cc: Gary Zambrano <zambrano@broadcom.com>
Cc: Stefano Brivio <stefano.brivio@polimi.it>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
FUJITA Tomonori 2010-06-03 19:37:44 -07:00 committed by John W. Linville
parent 39a6f4bce6
commit 467429b475
2 changed files with 0 additions and 231 deletions
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74
drivers/ssb/main.c
View file

@ -1228,80 +1228,6 @@ u32 ssb_dma_translation(struct ssb_device *dev)
} }
EXPORT_SYMBOL(ssb_dma_translation); EXPORT_SYMBOL(ssb_dma_translation);
int ssb_dma_set_mask(struct ssb_device *dev, u64 mask)
{
#ifdef CONFIG_SSB_PCIHOST
int err;
#endif
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
err = pci_set_dma_mask(dev->bus->host_pci, mask);
if (err)
return err;
err = pci_set_consistent_dma_mask(dev->bus->host_pci, mask);
return err;
#endif
case SSB_BUSTYPE_SSB:
return dma_set_mask(dev->dev, mask);
default:
__ssb_dma_not_implemented(dev);
}
return -ENOSYS;
}
EXPORT_SYMBOL(ssb_dma_set_mask);
void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp_flags)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
if (gfp_flags & GFP_DMA) {
/* Workaround: The PCI API does not support passing
* a GFP flag. */
return dma_alloc_coherent(&dev->bus->host_pci->dev,
size, dma_handle, gfp_flags);
}
return pci_alloc_consistent(dev->bus->host_pci, size, dma_handle);
#endif
case SSB_BUSTYPE_SSB:
return dma_alloc_coherent(dev->dev, size, dma_handle, gfp_flags);
default:
__ssb_dma_not_implemented(dev);
}
return NULL;
}
EXPORT_SYMBOL(ssb_dma_alloc_consistent);
void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle,
gfp_t gfp_flags)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
if (gfp_flags & GFP_DMA) {
/* Workaround: The PCI API does not support passing
* a GFP flag. */
dma_free_coherent(&dev->bus->host_pci->dev,
size, vaddr, dma_handle);
return;
}
pci_free_consistent(dev->bus->host_pci, size,
vaddr, dma_handle);
return;
#endif
case SSB_BUSTYPE_SSB:
dma_free_coherent(dev->dev, size, vaddr, dma_handle);
return;
default:
__ssb_dma_not_implemented(dev);
}
}
EXPORT_SYMBOL(ssb_dma_free_consistent);
int ssb_bus_may_powerdown(struct ssb_bus *bus) int ssb_bus_may_powerdown(struct ssb_bus *bus)
{ {
struct ssb_chipcommon *cc; struct ssb_chipcommon *cc;

157
include/linux/ssb/ssb.h
View file

@ -470,14 +470,6 @@ extern u32 ssb_dma_translation(struct ssb_device *dev);
#define SSB_DMA_TRANSLATION_MASK 0xC0000000 #define SSB_DMA_TRANSLATION_MASK 0xC0000000
#define SSB_DMA_TRANSLATION_SHIFT 30 #define SSB_DMA_TRANSLATION_SHIFT 30
extern int ssb_dma_set_mask(struct ssb_device *dev, u64 mask);
extern void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp_flags);
extern void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle,
gfp_t gfp_flags);
static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev) static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
{ {
#ifdef CONFIG_SSB_DEBUG #ifdef CONFIG_SSB_DEBUG
@ -486,155 +478,6 @@ static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
#endif /* DEBUG */ #endif /* DEBUG */
} }
static inline int ssb_dma_mapping_error(struct ssb_device *dev, dma_addr_t addr)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
return pci_dma_mapping_error(dev->bus->host_pci, addr);
#endif
break;
case SSB_BUSTYPE_SSB:
return dma_mapping_error(dev->dev, addr);
default:
break;
}
__ssb_dma_not_implemented(dev);
return -ENOSYS;
}
static inline dma_addr_t ssb_dma_map_single(struct ssb_device *dev, void *p,
size_t size, enum dma_data_direction dir)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
return pci_map_single(dev->bus->host_pci, p, size, dir);
#endif
break;
case SSB_BUSTYPE_SSB:
return dma_map_single(dev->dev, p, size, dir);
default:
break;
}
__ssb_dma_not_implemented(dev);
return 0;
}
static inline void ssb_dma_unmap_single(struct ssb_device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction dir)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
pci_unmap_single(dev->bus->host_pci, dma_addr, size, dir);
return;
#endif
break;
case SSB_BUSTYPE_SSB:
dma_unmap_single(dev->dev, dma_addr, size, dir);
return;
default:
break;
}
__ssb_dma_not_implemented(dev);
}
static inline void ssb_dma_sync_single_for_cpu(struct ssb_device *dev,
dma_addr_t dma_addr,
size_t size,
enum dma_data_direction dir)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
size, dir);
return;
#endif
break;
case SSB_BUSTYPE_SSB:
dma_sync_single_for_cpu(dev->dev, dma_addr, size, dir);
return;
default:
break;
}
__ssb_dma_not_implemented(dev);
}
static inline void ssb_dma_sync_single_for_device(struct ssb_device *dev,
dma_addr_t dma_addr,
size_t size,
enum dma_data_direction dir)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
size, dir);
return;
#endif
break;
case SSB_BUSTYPE_SSB:
dma_sync_single_for_device(dev->dev, dma_addr, size, dir);
return;
default:
break;
}
__ssb_dma_not_implemented(dev);
}
static inline void ssb_dma_sync_single_range_for_cpu(struct ssb_device *dev,
dma_addr_t dma_addr,
unsigned long offset,
size_t size,
enum dma_data_direction dir)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
/* Just sync everything. That's all the PCI API can do. */
pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
offset + size, dir);
return;
#endif
break;
case SSB_BUSTYPE_SSB:
dma_sync_single_range_for_cpu(dev->dev, dma_addr, offset,
size, dir);
return;
default:
break;
}
__ssb_dma_not_implemented(dev);
}
static inline void ssb_dma_sync_single_range_for_device(struct ssb_device *dev,
dma_addr_t dma_addr,
unsigned long offset,
size_t size,
enum dma_data_direction dir)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_PCI:
#ifdef CONFIG_SSB_PCIHOST
/* Just sync everything. That's all the PCI API can do. */
pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
offset + size, dir);
return;
#endif
break;
case SSB_BUSTYPE_SSB:
dma_sync_single_range_for_device(dev->dev, dma_addr, offset,
size, dir);
return;
default:
break;
}
__ssb_dma_not_implemented(dev);
}
#ifdef CONFIG_SSB_PCIHOST #ifdef CONFIG_SSB_PCIHOST
/* PCI-host wrapper driver */ /* PCI-host wrapper driver */
extern int ssb_pcihost_register(struct pci_driver *driver); extern int ssb_pcihost_register(struct pci_driver *driver);