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-rw-r--r--include/asm-x86/rio.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/asm-x86/rio.h b/include/asm-x86/rio.h
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1/*
2 * Derived from include/asm-i386/mach-summit/mach_mpparse.h
3 * and include/asm-i386/mach-default/bios_ebda.h
4 *
5 * Author: Laurent Vivier <Laurent.Vivier@bull.net>
6 */
7
8#ifndef __ASM_RIO_H
9#define __ASM_RIO_H
10
11#define RIO_TABLE_VERSION 3
12
13struct rio_table_hdr {
14 u8 version; /* Version number of this data structure */
15 u8 num_scal_dev; /* # of Scalability devices */
16 u8 num_rio_dev; /* # of RIO I/O devices */
17} __attribute__((packed));
18
19struct scal_detail {
20 u8 node_id; /* Scalability Node ID */
21 u32 CBAR; /* Address of 1MB register space */
22 u8 port0node; /* Node ID port connected to: 0xFF=None */
23 u8 port0port; /* Port num port connected to: 0,1,2, or */
24 /* 0xFF=None */
25 u8 port1node; /* Node ID port connected to: 0xFF = None */
26 u8 port1port; /* Port num port connected to: 0,1,2, or */
27 /* 0xFF=None */
28 u8 port2node; /* Node ID port connected to: 0xFF = None */
29 u8 port2port; /* Port num port connected to: 0,1,2, or */
30 /* 0xFF=None */
31 u8 chassis_num; /* 1 based Chassis number (1 = boot node) */
32} __attribute__((packed));
33
34struct rio_detail {
35 u8 node_id; /* RIO Node ID */
36 u32 BBAR; /* Address of 1MB register space */
37 u8 type; /* Type of device */
38 u8 owner_id; /* Node ID of Hurricane that owns this */
39 /* node */
40 u8 port0node; /* Node ID port connected to: 0xFF=None */
41 u8 port0port; /* Port num port connected to: 0,1,2, or */
42 /* 0xFF=None */
43 u8 port1node; /* Node ID port connected to: 0xFF=None */
44 u8 port1port; /* Port num port connected to: 0,1,2, or */
45 /* 0xFF=None */
46 u8 first_slot; /* Lowest slot number below this Calgary */
47 u8 status; /* Bit 0 = 1 : the XAPIC is used */
48 /* = 0 : the XAPIC is not used, ie: */
49 /* ints fwded to another XAPIC */
50 /* Bits1:7 Reserved */
51 u8 WP_index; /* instance index - lower ones have */
52 /* lower slot numbers/PCI bus numbers */
53 u8 chassis_num; /* 1 based Chassis number */
54} __attribute__((packed));
55
56enum {
57 HURR_SCALABILTY = 0, /* Hurricane Scalability info */
58 HURR_RIOIB = 2, /* Hurricane RIOIB info */
59 COMPAT_CALGARY = 4, /* Compatibility Calgary */
60 ALT_CALGARY = 5, /* Second Planar Calgary */
61};
62
63/*
64 * there is a real-mode segmented pointer pointing to the
65 * 4K EBDA area at 0x40E.
66 */
67static inline unsigned long get_bios_ebda(void)
68{
69 unsigned long address = *(unsigned short *)phys_to_virt(0x40EUL);
70 address <<= 4;
71 return address;
72}
73
74#endif /* __ASM_RIO_H */