144 lines
3.8 KiB
C
144 lines
3.8 KiB
C
#ifndef __ALPHA_PCI_H
|
|
#define __ALPHA_PCI_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <asm/scatterlist.h>
|
|
#include <asm/machvec.h>
|
|
|
|
/*
|
|
* The following structure is used to manage multiple PCI busses.
|
|
*/
|
|
|
|
struct pci_dev;
|
|
struct pci_bus;
|
|
struct resource;
|
|
struct pci_iommu_arena;
|
|
struct page;
|
|
|
|
/* A controller. Used to manage multiple PCI busses. */
|
|
|
|
struct pci_controller {
|
|
struct pci_controller *next;
|
|
struct pci_bus *bus;
|
|
struct resource *io_space;
|
|
struct resource *mem_space;
|
|
|
|
/* The following are for reporting to userland. The invariant is
|
|
that if we report a BWX-capable dense memory, we do not report
|
|
a sparse memory at all, even if it exists. */
|
|
unsigned long sparse_mem_base;
|
|
unsigned long dense_mem_base;
|
|
unsigned long sparse_io_base;
|
|
unsigned long dense_io_base;
|
|
|
|
/* This one's for the kernel only. It's in KSEG somewhere. */
|
|
unsigned long config_space_base;
|
|
|
|
unsigned int index;
|
|
/* For compatibility with current (as of July 2003) pciutils
|
|
and XFree86. Eventually will be removed. */
|
|
unsigned int need_domain_info;
|
|
|
|
struct pci_iommu_arena *sg_pci;
|
|
struct pci_iommu_arena *sg_isa;
|
|
|
|
void *sysdata;
|
|
};
|
|
|
|
/* Override the logic in pci_scan_bus for skipping already-configured
|
|
bus numbers. */
|
|
|
|
#define pcibios_assign_all_busses() 1
|
|
|
|
#define PCIBIOS_MIN_IO alpha_mv.min_io_address
|
|
#define PCIBIOS_MIN_MEM alpha_mv.min_mem_address
|
|
|
|
extern void pcibios_set_master(struct pci_dev *dev);
|
|
|
|
extern inline void pcibios_penalize_isa_irq(int irq, int active)
|
|
{
|
|
/* We don't do dynamic PCI IRQ allocation */
|
|
}
|
|
|
|
/* IOMMU controls. */
|
|
|
|
/* The PCI address space does not equal the physical memory address space.
|
|
The networking and block device layers use this boolean for bounce buffer
|
|
decisions. */
|
|
#define PCI_DMA_BUS_IS_PHYS 0
|
|
|
|
#ifdef CONFIG_PCI
|
|
|
|
/* implement the pci_ DMA API in terms of the generic device dma_ one */
|
|
#include <asm-generic/pci-dma-compat.h>
|
|
|
|
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
|
|
enum pci_dma_burst_strategy *strat,
|
|
unsigned long *strategy_parameter)
|
|
{
|
|
unsigned long cacheline_size;
|
|
u8 byte;
|
|
|
|
pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
|
|
if (byte == 0)
|
|
cacheline_size = 1024;
|
|
else
|
|
cacheline_size = (int) byte * 4;
|
|
|
|
*strat = PCI_DMA_BURST_BOUNDARY;
|
|
*strategy_parameter = cacheline_size;
|
|
}
|
|
#endif
|
|
|
|
/* TODO: integrate with include/asm-generic/pci.h ? */
|
|
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
|
|
{
|
|
return channel ? 15 : 14;
|
|
}
|
|
|
|
extern void pcibios_resource_to_bus(struct pci_dev *, struct pci_bus_region *,
|
|
struct resource *);
|
|
|
|
extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
|
|
struct pci_bus_region *region);
|
|
|
|
#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
|
|
|
|
static inline int pci_proc_domain(struct pci_bus *bus)
|
|
{
|
|
struct pci_controller *hose = bus->sysdata;
|
|
return hose->need_domain_info;
|
|
}
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
/* Values for the `which' argument to sys_pciconfig_iobase. */
|
|
#define IOBASE_HOSE 0
|
|
#define IOBASE_SPARSE_MEM 1
|
|
#define IOBASE_DENSE_MEM 2
|
|
#define IOBASE_SPARSE_IO 3
|
|
#define IOBASE_DENSE_IO 4
|
|
#define IOBASE_ROOT_BUS 5
|
|
#define IOBASE_FROM_HOSE 0x10000
|
|
|
|
extern struct pci_dev *isa_bridge;
|
|
|
|
extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
|
|
size_t count);
|
|
extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
|
|
size_t count);
|
|
extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
|
|
struct vm_area_struct *vma,
|
|
enum pci_mmap_state mmap_state);
|
|
extern void pci_adjust_legacy_attr(struct pci_bus *bus,
|
|
enum pci_mmap_state mmap_type);
|
|
#define HAVE_PCI_LEGACY 1
|
|
|
|
extern int pci_create_resource_files(struct pci_dev *dev);
|
|
extern void pci_remove_resource_files(struct pci_dev *dev);
|
|
|
|
#endif /* __ALPHA_PCI_H */
|