[deliverable/linux.git] / arch / s390 / include / asm / pci.h

#ifndef __ASM_S390_PCI_H
#define __ASM_S390_PCI_H

/* must be set before including asm-generic/pci.h */
#define PCI_DMA_BUS_IS_PHYS (0)
/* must be set before including pci_clp.h */
#define PCI_BAR_COUNT	6

#include <asm-generic/pci.h>
#include <asm-generic/pci-dma-compat.h>
#include <asm/pci_clp.h>

#define PCIBIOS_MIN_IO		0x1000
#define PCIBIOS_MIN_MEM		0x10000000

#define pcibios_assign_all_busses()	(0)

void __iomem *pci_iomap(struct pci_dev *, int, unsigned long);
void pci_iounmap(struct pci_dev *, void __iomem *);
int pci_domain_nr(struct pci_bus *);
int pci_proc_domain(struct pci_bus *);

#define ZPCI_BUS_NR			0	/* default bus number */
#define ZPCI_DEVFN			0	/* default device number */

/* PCI Function Controls */
#define ZPCI_FC_FN_ENABLED		0x80
#define ZPCI_FC_ERROR			0x40
#define ZPCI_FC_BLOCKED			0x20
#define ZPCI_FC_DMA_ENABLED		0x10

enum zpci_state {
	ZPCI_FN_STATE_RESERVED,
	ZPCI_FN_STATE_STANDBY,
	ZPCI_FN_STATE_CONFIGURED,
	ZPCI_FN_STATE_ONLINE,
	NR_ZPCI_FN_STATES,
};

struct zpci_bar_struct {
	u32		val;		/* bar start & 3 flag bits */
	u8		size;		/* order 2 exponent */
	u16		map_idx;	/* index into bar mapping array */
};

/* Private data per function */
struct zpci_dev {
	struct pci_dev	*pdev;
	struct pci_bus	*bus;
	struct list_head entry;		/* list of all zpci_devices, needed for hotplug, etc. */

	enum zpci_state state;
	u32		fid;		/* function ID, used by sclp */
	u32		fh;		/* function handle, used by insn's */
	u16		pchid;		/* physical channel ID */
	u8		pfgid;		/* function group ID */
	u16		domain;

	struct zpci_bar_struct bars[PCI_BAR_COUNT];

	enum pci_bus_speed max_bus_speed;
};

static inline bool zdev_enabled(struct zpci_dev *zdev)
{
	return (zdev->fh & (1UL << 31)) ? true : false;
}

/* -----------------------------------------------------------------------------
  Prototypes
----------------------------------------------------------------------------- */
/* Base stuff */
struct zpci_dev *zpci_alloc_device(void);
int zpci_create_device(struct zpci_dev *);
int zpci_enable_device(struct zpci_dev *);
void zpci_stop_device(struct zpci_dev *);
void zpci_free_device(struct zpci_dev *);
int zpci_scan_device(struct zpci_dev *);

/* CLP */
int clp_find_pci_devices(void);
int clp_add_pci_device(u32, u32, int);
int clp_enable_fh(struct zpci_dev *, u8);
int clp_disable_fh(struct zpci_dev *);

/* Helpers */
struct zpci_dev *get_zdev(struct pci_dev *);
struct zpci_dev *get_zdev_by_fid(u32);
bool zpci_fid_present(u32);

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef __ASM_S390_PCI_H
	2	#define __ASM_S390_PCI_H
	3
cd248341	4	/* must be set before including asm-generic/pci.h */
1da177e4	5	#define PCI_DMA_BUS_IS_PHYS (0)
cd248341 JG	6	/* must be set before including pci_clp.h */
cd248341 JG	7	#define PCI_BAR_COUNT 6
1da177e4	8
cd248341 JG	9	#include <asm-generic/pci.h>
cd248341 JG	10	#include <asm-generic/pci-dma-compat.h>
a755a45d	11	#include <asm/pci_clp.h>
1da177e4	12
cd248341 JG	13	#define PCIBIOS_MIN_IO 0x1000
	14	#define PCIBIOS_MIN_MEM 0x10000000
	15
	16	#define pcibios_assign_all_busses() (0)
	17
	18	void __iomem pci_iomap(struct pci_dev , int, unsigned long);
	19	void pci_iounmap(struct pci_dev , void __iomem );
	20	int pci_domain_nr(struct pci_bus *);
	21	int pci_proc_domain(struct pci_bus *);
	22
	23	#define ZPCI_BUS_NR 0 /* default bus number */
	24	#define ZPCI_DEVFN 0 /* default device number */
	25
	26	/* PCI Function Controls */
	27	#define ZPCI_FC_FN_ENABLED 0x80
	28	#define ZPCI_FC_ERROR 0x40
	29	#define ZPCI_FC_BLOCKED 0x20
	30	#define ZPCI_FC_DMA_ENABLED 0x10
	31
	32	enum zpci_state {
	33	ZPCI_FN_STATE_RESERVED,
	34	ZPCI_FN_STATE_STANDBY,
	35	ZPCI_FN_STATE_CONFIGURED,
	36	ZPCI_FN_STATE_ONLINE,
	37	NR_ZPCI_FN_STATES,
	38	};
	39
	40	struct zpci_bar_struct {
	41	u32 val; /* bar start & 3 flag bits */
	42	u8 size; /* order 2 exponent */
	43	u16 map_idx; /* index into bar mapping array */
	44	};
	45
	46	/* Private data per function */
	47	struct zpci_dev {
	48	struct pci_dev *pdev;
	49	struct pci_bus *bus;
	50	struct list_head entry; /* list of all zpci_devices, needed for hotplug, etc. */
	51
	52	enum zpci_state state;
	53	u32 fid; /* function ID, used by sclp */
	54	u32 fh; /* function handle, used by insn's */
	55	u16 pchid; /* physical channel ID */
	56	u8 pfgid; /* function group ID */
	57	u16 domain;
	58
	59	struct zpci_bar_struct bars[PCI_BAR_COUNT];
	60
	61	enum pci_bus_speed max_bus_speed;
	62	};
	63
	64	static inline bool zdev_enabled(struct zpci_dev *zdev)
	65	{
	66	return (zdev->fh & (1UL << 31)) ? true : false;
	67	}
	68
	69	/* -----------------------------------------------------------------------------
	70	Prototypes
	71	----------------------------------------------------------------------------- */
	72	/* Base stuff */
	73	struct zpci_dev *zpci_alloc_device(void);
	74	int zpci_create_device(struct zpci_dev *);
	75	int zpci_enable_device(struct zpci_dev *);
	76	void zpci_stop_device(struct zpci_dev *);
77	void zpci_free_device(struct zpci_dev *);
78	int zpci_scan_device(struct zpci_dev *);
79
a755a45d JG	80	/* CLP */
	81	int clp_find_pci_devices(void);
	82	int clp_add_pci_device(u32, u32, int);
	83	int clp_enable_fh(struct zpci_dev *, u8);
	84	int clp_disable_fh(struct zpci_dev *);
	85
cd248341 JG	86	/* Helpers */
	87	struct zpci_dev get_zdev(struct pci_dev );
	88	struct zpci_dev *get_zdev_by_fid(u32);
	89	bool zpci_fid_present(u32);
	90
	91	#endif