1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#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
|
