a7db504052
This was #define'd as 0 on all platforms, so let's get rid of it. This change makes pci_scan_slot() slightly easier to read. Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Luck <tony.luck@intel.com> Cc: David Howells <dhowells@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Reviewed-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Russell King <linux@arm.linux.org.uk> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
170 lines
4.8 KiB
C
170 lines
4.8 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
#ifndef _ASM_PCI_H
|
|
#define _ASM_PCI_H
|
|
|
|
#include <linux/mm.h>
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
/*
|
|
* This file essentially defines the interface between board
|
|
* specific PCI code and MIPS common PCI code. Should potentially put
|
|
* into include/asm/pci.h file.
|
|
*/
|
|
|
|
#include <linux/ioport.h>
|
|
|
|
/*
|
|
* Each pci channel is a top-level PCI bus seem by CPU. A machine with
|
|
* multiple PCI channels may have multiple PCI host controllers or a
|
|
* single controller supporting multiple channels.
|
|
*/
|
|
struct pci_controller {
|
|
struct pci_controller *next;
|
|
struct pci_bus *bus;
|
|
|
|
struct pci_ops *pci_ops;
|
|
struct resource *mem_resource;
|
|
unsigned long mem_offset;
|
|
struct resource *io_resource;
|
|
unsigned long io_offset;
|
|
unsigned long io_map_base;
|
|
|
|
unsigned int index;
|
|
/* For compatibility with current (as of July 2003) pciutils
|
|
and XFree86. Eventually will be removed. */
|
|
unsigned int need_domain_info;
|
|
|
|
int iommu;
|
|
|
|
/* Optional access methods for reading/writing the bus number
|
|
of the PCI controller */
|
|
int (*get_busno)(void);
|
|
void (*set_busno)(int busno);
|
|
};
|
|
|
|
/*
|
|
* Used by boards to register their PCI busses before the actual scanning.
|
|
*/
|
|
extern struct pci_controller * alloc_pci_controller(void);
|
|
extern void register_pci_controller(struct pci_controller *hose);
|
|
|
|
/*
|
|
* board supplied pci irq fixup routine
|
|
*/
|
|
extern int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
|
|
|
|
|
|
/* Can be used to override the logic in pci_scan_bus for skipping
|
|
already-configured bus numbers - to be used for buggy BIOSes
|
|
or architectures with incomplete PCI setup by the loader */
|
|
|
|
extern unsigned int pcibios_assign_all_busses(void);
|
|
|
|
extern unsigned long PCIBIOS_MIN_IO;
|
|
extern unsigned long PCIBIOS_MIN_MEM;
|
|
|
|
#define PCIBIOS_MIN_CARDBUS_IO 0x4000
|
|
|
|
extern void pcibios_set_master(struct pci_dev *dev);
|
|
|
|
static inline void pcibios_penalize_isa_irq(int irq, int active)
|
|
{
|
|
/* We don't do dynamic PCI IRQ allocation */
|
|
}
|
|
|
|
#define HAVE_PCI_MMAP
|
|
|
|
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
|
|
enum pci_mmap_state mmap_state, int write_combine);
|
|
|
|
/*
|
|
* Dynamic DMA mapping stuff.
|
|
* MIPS has everything mapped statically.
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/slab.h>
|
|
#include <asm/scatterlist.h>
|
|
#include <linux/string.h>
|
|
#include <asm/io.h>
|
|
|
|
struct pci_dev;
|
|
|
|
/*
|
|
* The PCI address space does equal the physical memory address space. The
|
|
* networking and block device layers use this boolean for bounce buffer
|
|
* decisions. This is set if any hose does not have an IOMMU.
|
|
*/
|
|
extern unsigned int PCI_DMA_BUS_IS_PHYS;
|
|
|
|
#ifdef CONFIG_DMA_NEED_PCI_MAP_STATE
|
|
|
|
/* pci_unmap_{single,page} is not a nop, thus... */
|
|
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME;
|
|
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME;
|
|
#define pci_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME)
|
|
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL))
|
|
#define pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME)
|
|
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL))
|
|
|
|
#else /* CONFIG_DMA_NEED_PCI_MAP_STATE */
|
|
|
|
/* pci_unmap_{page,single} is a nop so... */
|
|
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
|
|
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
|
|
#define pci_unmap_addr(PTR, ADDR_NAME) (0)
|
|
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
|
|
#define pci_unmap_len(PTR, LEN_NAME) (0)
|
|
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
|
|
|
|
#endif /* CONFIG_DMA_NEED_PCI_MAP_STATE */
|
|
|
|
#ifdef CONFIG_PCI
|
|
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
|
|
enum pci_dma_burst_strategy *strat,
|
|
unsigned long *strategy_parameter)
|
|
{
|
|
*strat = PCI_DMA_BURST_INFINITY;
|
|
*strategy_parameter = ~0UL;
|
|
}
|
|
#endif
|
|
|
|
extern void pcibios_resource_to_bus(struct pci_dev *dev,
|
|
struct pci_bus_region *region, struct resource *res);
|
|
|
|
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__ */
|
|
|
|
/* implement the pci_ DMA API in terms of the generic device dma_ one */
|
|
#include <asm-generic/pci-dma-compat.h>
|
|
|
|
/* Do platform specific device initialization at pci_enable_device() time */
|
|
extern int pcibios_plat_dev_init(struct pci_dev *dev);
|
|
|
|
/* Chances are this interrupt is wired PC-style ... */
|
|
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
|
|
{
|
|
return channel ? 15 : 14;
|
|
}
|
|
|
|
extern int pci_probe_only;
|
|
|
|
extern char * (*pcibios_plat_setup)(char *str);
|
|
|
|
#endif /* _ASM_PCI_H */
|