[mirror_ubuntu-artful-kernel.git] / arch / alpha / include / asm / pci.h

#ifndef __ALPHA_PCI_H
#define __ALPHA_PCI_H

#ifdef __KERNEL__

#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <linux/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);

/* 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

/* 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;
}

#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 */
Commit	Line	Data
1da177e4 LT	1	#ifndef __ALPHA_PCI_H
	2	#define __ALPHA_PCI_H
	3
	4	#ifdef __KERNEL__
	5
	6	#include <linux/spinlock.h>
7c53664d	7	#include <linux/dma-mapping.h>
84be456f	8	#include <linux/scatterlist.h>
1da177e4 LT	9	#include <asm/machvec.h>
	10
	11	/*
	12	* The following structure is used to manage multiple PCI busses.
	13	*/
	14
	15	struct pci_dev;
	16	struct pci_bus;
	17	struct resource;
	18	struct pci_iommu_arena;
	19	struct page;
	20
	21	/* A controller. Used to manage multiple PCI busses. */
	22
	23	struct pci_controller {
	24	struct pci_controller *next;
	25	struct pci_bus *bus;
	26	struct resource *io_space;
	27	struct resource *mem_space;
	28
	29	/* The following are for reporting to userland. The invariant is
	30	that if we report a BWX-capable dense memory, we do not report
	31	a sparse memory at all, even if it exists. */
	32	unsigned long sparse_mem_base;
	33	unsigned long dense_mem_base;
	34	unsigned long sparse_io_base;
	35	unsigned long dense_io_base;
	36
	37	/* This one's for the kernel only. It's in KSEG somewhere. */
	38	unsigned long config_space_base;
	39
	40	unsigned int index;
	41	/* For compatibility with current (as of July 2003) pciutils
	42	and XFree86. Eventually will be removed. */
	43	unsigned int need_domain_info;
	44
	45	struct pci_iommu_arena *sg_pci;
	46	struct pci_iommu_arena *sg_isa;
	47
	48	void *sysdata;
	49	};
	50
	51	/* Override the logic in pci_scan_bus for skipping already-configured
	52	bus numbers. */
	53
	54	#define pcibios_assign_all_busses() 1
1da177e4 LT	55
	56	#define PCIBIOS_MIN_IO alpha_mv.min_io_address
	57	#define PCIBIOS_MIN_MEM alpha_mv.min_mem_address
	58
	59	extern void pcibios_set_master(struct pci_dev *dev);
	60
1da177e4 LT	61	/* IOMMU controls. */
	62
	63	/* The PCI address space does not equal the physical memory address space.
	64	The networking and block device layers use this boolean for bounce buffer
	65	decisions. */
	66	#define PCI_DMA_BUS_IS_PHYS 0
	67
1da177e4 LT	68	/* TODO: integrate with include/asm-generic/pci.h ? */
	69	static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
	70	{
	71	return channel ? 15 : 14;
	72	}
	73
1da177e4 LT	74	#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
	75
	76	static inline int pci_proc_domain(struct pci_bus *bus)
	77	{
	78	struct pci_controller *hose = bus->sysdata;
	79	return hose->need_domain_info;
	80	}
	81
1da177e4 LT	82	#endif /* __KERNEL__ */
	83
	84	/* Values for the `which' argument to sys_pciconfig_iobase. */
	85	#define IOBASE_HOSE 0
	86	#define IOBASE_SPARSE_MEM 1
	87	#define IOBASE_DENSE_MEM 2
	88	#define IOBASE_SPARSE_IO 3
	89	#define IOBASE_DENSE_IO 4
	90	#define IOBASE_ROOT_BUS 5
	91	#define IOBASE_FROM_HOSE 0x10000
	92
8255cf35 AB	93	extern struct pci_dev *isa_bridge;
8255cf35 AB	94
10a0ef39 IK	95	extern int pci_legacy_read(struct pci_bus bus, loff_t port, u32 val,
	96	size_t count);
	97	extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
	98	size_t count);
	99	extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
	100	struct vm_area_struct *vma,
	101	enum pci_mmap_state mmap_state);
	102	extern void pci_adjust_legacy_attr(struct pci_bus *bus,
	103	enum pci_mmap_state mmap_type);
	104	#define HAVE_PCI_LEGACY 1
	105
	106	extern int pci_create_resource_files(struct pci_dev *dev);
	107	extern void pci_remove_resource_files(struct pci_dev *dev);
	108
1da177e4	109	#endif /* __ALPHA_PCI_H */