fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-x86 / rio.h
blobc7350f6d20158302e2b89609c24084a25f140eba
1 /*
2 * Derived from include/asm-i386/mach-summit/mach_mpparse.h
3 * and include/asm-i386/mach-default/bios_ebda.h
5 * Author: Laurent Vivier <Laurent.Vivier@bull.net>
6 */
8 #ifndef __ASM_RIO_H
9 #define __ASM_RIO_H
11 #define RIO_TABLE_VERSION 3
13 struct 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));
19 struct 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));
34 struct 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));
56 enum {
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 */
64 * there is a real-mode segmented pointer pointing to the
65 * 4K EBDA area at 0x40E.
67 static inline unsigned long get_bios_ebda(void)
69 unsigned long address = *(unsigned short *)phys_to_virt(0x40EUL);
70 address <<= 4;
71 return address;
74 #endif /* __ASM_RIO_H */