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#ifndef __PPC_PCI_H
#define __PPC_PCI_H
#ifdef __KERNEL__
/* Values for the `which' argument to sys_pciconfig_iobase syscall. */
#define IOBASE_BRIDGE_NUMBER 0
#define IOBASE_MEMORY 1
#define IOBASE_IO 2
#define IOBASE_ISA_IO 3
#define IOBASE_ISA_MEM 4
extern int pcibios_assign_all_busses(void);
#define PCIBIOS_MIN_IO 0x1000
#define PCIBIOS_MIN_MEM 0x10000000
extern inline void pcibios_set_master(struct pci_dev *dev)
{
/* No special bus mastering setup handling */
}
extern inline void pcibios_penalize_isa_irq(int irq)
{
/* We don't do dynamic PCI IRQ allocation */
}
extern unsigned long pci_resource_to_bus(struct pci_dev *pdev, struct resource *res);
/*
* The PCI bus bridge can translate addresses issued by the processor(s)
* into a different address on the PCI bus. On 32-bit cpus, we assume
* this mapping is 1-1, but on 64-bit systems it often isn't.
*
* Obsolete ! Drivers should now use pci_resource_to_bus
*/
extern unsigned long phys_to_bus(unsigned long pa);
extern unsigned long pci_phys_to_bus(unsigned long pa, int busnr);
extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr);
/* Dynamic DMA Mapping stuff
* ++ajoshi
*/
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <asm/scatterlist.h>
#include <asm/io.h>
struct pci_dev;
extern void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
dma_addr_t *dma_handle);
extern void pci_free_consistent(struct pci_dev *hwdev, size_t size,
void *vaddr, dma_addr_t dma_handle);
extern inline dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr,
size_t size, int direction)
{
if (direction == PCI_DMA_NONE)
BUG();
return virt_to_bus(ptr);
}
extern inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
size_t size, int direction)
{
if (direction == PCI_DMA_NONE)
BUG();
/* nothing to do */
}
extern inline int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
int nents, int direction)
{
if (direction == PCI_DMA_NONE)
BUG();
return nents;
}
extern inline void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
int nents, int direction)
{
if (direction == PCI_DMA_NONE)
BUG();
/* nothing to do */
}
extern inline void pci_dma_sync_single(struct pci_dev *hwdev,
dma_addr_t dma_handle,
size_t size, int direction)
{
if (direction == PCI_DMA_NONE)
BUG();
/* nothing to do */
}
extern inline void pci_dma_sync_sg(struct pci_dev *hwdev,
struct scatterlist *sg,
int nelems, int direction)
{
if (direction == PCI_DMA_NONE)
BUG();
/* nothing to do */
}
/* Return whether the given PCI device DMA address mask can
* be supported properly. For example, if your device can
* only drive the low 24-bits during PCI bus mastering, then
* you would pass 0x00ffffff as the mask to this function.
*/
extern inline int pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask)
{
return 1;
}
#define sg_dma_address(sg) (virt_to_bus((sg)->address))
#define sg_dma_len(sg) ((sg)->length)
#endif /* __KERNEL__ */
#endif /* __PPC_PCI_H */
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