blob: 0c09bd338688d901d4c6dae75cc4c5fedcb1cfdf (
plain)
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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/* $Id: pbm.h,v 1.8 1998/01/10 18:26:10 ecd Exp $
* pbm.h: U2P PCI bus module pseudo driver software state.
*
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
*/
#ifndef __SPARC64_PBM_H
#define __SPARC64_PBM_H
#include <linux/bios32.h>
#include <linux/pci.h>
#include <asm/psycho.h>
#include <asm/oplib.h>
struct linux_pbm_info;
/* This is what we use to determine what the PROM has assigned so
* far, so that we can perform assignments for addresses which
* were not taken care of by OBP. See psycho.c for details.
* Per-PBM these are ordered by start address.
*/
struct pci_vma {
struct pci_vma *next;
struct linux_pbm_info *pbm;
unsigned int start;
unsigned int end;
unsigned int base_reg;
unsigned int _pad;
};
struct linux_psycho;
struct linux_pbm_info {
struct linux_psycho *parent;
struct pci_vma *IO_assignments;
struct pci_vma *MEM_assignments;
int prom_node;
char prom_name[64];
struct linux_prom_pci_ranges pbm_ranges[PROMREG_MAX];
int num_pbm_ranges;
/* Now things for the actual PCI bus probes. */
unsigned int pci_first_busno;
unsigned int pci_last_busno;
struct pci_bus pci_bus;
};
struct linux_psycho {
struct linux_psycho *next;
struct psycho_regs *psycho_regs;
unsigned long *pci_config_space;
unsigned long *pci_IO_space;
unsigned long *pci_mem_space;
u32 upa_portid;
int index;
struct linux_pbm_info pbm_A;
struct linux_pbm_info pbm_B;
};
/* PCI devices which are not bridges have this placed in their pci_dev
* sysdata member. This makes OBP aware PCI device drivers easier to
* code.
*/
struct pcidev_cookie {
struct linux_pbm_info *pbm;
int prom_node;
};
extern struct linux_psycho *psycho_root;
extern struct linux_psycho **psycho_index_map;
extern int linux_num_psycho;
static __inline__ struct linux_psycho *
psycho_by_index(int index)
{
if (index >= linux_num_psycho)
return NULL;
return psycho_index_map[index];
}
/* Special PCI IRQ encoding, this just makes life easier for the generic
* irq registry layer, there is already enough crap in there due to sbus,
* fhc, and dcookies.
*/
#define PCI_IRQ_IDENT 0x80000000 /* This tells irq.c what we are */
#define PCI_IRQ_IMAP_OFF 0x7ff00000 /* Offset from first PSYCHO imap */
#define PCI_IRQ_IMAP_OFF_SHFT 20
#define PCI_IRQ_BUSNO 0x000fc000 /* PSYCHO instance, currently unused */
#define PCI_IRQ_BUSNO_SHFT 14
#define PCI_IRQ_IGN 0x000007c0 /* PSYCHO "Int Group Number" */
#define PCI_IRQ_INO 0x0000003f /* PSYCHO INO */
#define PCI_IRQ_P(__irq) (((__irq) & PCI_IRQ_IDENT) != 0)
extern __inline__ unsigned int pci_irq_encode(unsigned long imap_off,
unsigned long psycho_instance,
unsigned long ign,
unsigned long ino)
{
unsigned int irq;
irq = PCI_IRQ_IDENT;
irq |= ((imap_off << PCI_IRQ_IMAP_OFF_SHFT) & PCI_IRQ_IMAP_OFF);
irq |= ((psycho_instance << PCI_IRQ_BUSNO_SHFT) & PCI_IRQ_BUSNO);
irq |= ((ign << 6) & PCI_IRQ_IGN);
irq |= (ino & PCI_IRQ_INO);
return irq;
}
#endif /* !(__SPARC64_PBM_H) */
|
