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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef H3FFEAT_H
#define H3FFEAT_H
#include "h3finit.h"
/*----------------------------------------------------------------------------
* Mixed (DEFINITIONS AND MACROS / TYPEDEFS, STRUCTURES, ENUMS)
*
*----------------------------------------------------------------------------
*/
/*-----------------------------------------------------------------------------
* DEFINITIONS AND MACROS
*
*-----------------------------------------------------------------------------
*/
#define MAX_NODES 8
#define MAX_LINKS 8
#define MAX_PLATFORM_LINKS 64 /* 8x8 fully connected (28) + 4 chains with two HT devices */
/* These following are internal definitions */
#define ROUTETOSELF 0x0F
#define INVALID_LINK 0xCC /* Used in port list data structure to mark unused data entries.
Can also be used for no link found in a port list search */
/* definitions for working with the port list structure */
#define PORTLIST_TYPE_CPU 0
#define PORTLIST_TYPE_IO 1
/*
* Hypertransport Capability definitions and macros
*
*/
/* HT Host Capability */
/* bool isHTHostCapability(u32 reg) */
#define IS_HT_HOST_CAPABILITY(reg) \
((reg & (u32)0xE00000FF) == (u32)0x20000008)
#define HT_HOST_CAP_SIZE 0x20
/* Host CapabilityRegisters */
#define HTHOST_LINK_CAPABILITY_REG 0x00
#define HTHOST_LINK_CONTROL_REG 0x04
#define HTHOST_FREQ_REV_REG 0x08
#define HTHOST_FREQ_REV_REG_2 0x1c
#define HT_HOST_REV_REV3 0x60
#define HTHOST_FEATURE_CAP_REG 0x0C
#define HTHOST_BUFFER_COUNT_REG 0x10
#define HTHOST_ISOC_REG 0x14
#define HTHOST_LINK_TYPE_REG 0x18
#define HTHOST_TYPE_COHERENT 3
#define HTHOST_TYPE_NONCOHERENT 7
#define HTHOST_TYPE_MASK 0x1F
/* HT Slave Capability (HT1 compat) */
#define IS_HT_SLAVE_CAPABILITY(reg) \
((reg & (u32)0xE00000FF) == (u32)0x00000008)
#define HTSLAVE_LINK01_OFFSET 4
#define HTSLAVE_LINK_CONTROL_0_REG 4
#define HTSLAVE_FREQ_REV_0_REG 0xC
#define HTSLAVE_FEATURE_CAP_REG 0x10
/* HT3 gen Capability */
#define IS_HT_GEN3_CAPABILITY(reg) \
((reg & (u32)0xF80000FF) == (u32)0xD0000008)
#define HTGEN3_LINK01_OFFSET 0x10
#define HTGEN3_LINK_TRAINING_0_REG 0x10
/* HT3 Retry Capability */
#define IS_HT_RETRY_CAPABILITY(reg) \
((reg & (u32)0xF80000FF) == (u32)0xC0000008)
#define HTRETRY_CONTROL_REG 4
/* Unit ID Clumping Capability */
#define IS_HT_UNITID_CAPABILITY(reg) \
((reg & (u32)0xF80000FF) == (u32)0x90000008)
#define HTUNIT_SUPPORT_REG 4
#define HTUNIT_ENABLE_REG 8
/*----------------------------------------------------------------------------
* TYPEDEFS, STRUCTURES, ENUMS
*
*----------------------------------------------------------------------------
*/
typedef struct cNorthBridge cNorthBridge;
/* A pair consists of a source node, a link to the destination node, the
* destination node, and its link back to source node. The even indices are
* the source nodes and links, and the odd indices are for the destination
* nodes and links.
*/
typedef struct
{
/* This section is where the link is in the system and how to find it */
u8 Type; /* 0 = CPU, 1 = Device, all others reserved */
u8 Link; /* 0-1 for devices, 0-7 for CPUs */
u8 NodeID; /* The node, or a pointer to the devices parent node */
u8 HostLink, HostDepth; /* Link of parent node + depth in chain. Only used by devices */
SBDFO Pointer; /* A pointer to the device's slave HT capability, so we don't have to keep searching */
/* This section is for the final settings, which are written to hardware */
BOOL SelRegang; /* Only used for CPU->CPU links */
u8 SelWidthIn;
u8 SelWidthOut;
u8 SelFrequency;
uint8_t enable_isochronous_mode;
/* This section is for keeping track of capabilities and possible configurations */
BOOL RegangCap;
uint32_t PrvFrequencyCap;
uint32_t PrvFeatureCap;
u8 PrvWidthInCap;
u8 PrvWidthOutCap;
uint32_t CompositeFrequencyCap;
} sPortDescriptor;
/*
* Our global state data structure
*/
typedef struct {
AMD_HTBLOCK *HtBlock;
u8 NodesDiscovered; /* One less than the number of nodes found in the system */
u8 TotalLinks;
u8 sysMpCap; /* The maximum number of nodes that all processors are capable of */
/* Two ports for each link
* Note: The Port pair 2*N and 2*N+1 are connected together to form a link
* (e.g. 0,1 and 8,9 are ports on either end of an HT link) The lower number
* port (2*N) is the source port. The device that owns the source port is
* always the device closer to the BSP. (i.e. nearer the CPU in a
* non-coherent chain, or the CPU with the lower NodeID).
*/
sPortDescriptor PortList[MAX_PLATFORM_LINKS*2];
/* The number of coherent links coming off of each node (i.e. the 'Degree' of the node) */
u8 sysDegree[MAX_NODES];
/* The systems adjency (sysMatrix[i][j] is true if Node_i has a link to Node_j) */
BOOL sysMatrix[MAX_NODES][MAX_NODES];
/* Same as above, but for the currently selected database entry */
u8 dbDegree[MAX_NODES];
BOOL dbMatrix[MAX_NODES][MAX_NODES];
u8 Perm[MAX_NODES]; /* The node mapping from the database to the system */
u8 ReversePerm[MAX_NODES]; /* The node mapping from the system to the database */
/* Data for non-coherent initialization */
u8 AutoBusCurrent;
u8 UsedCfgMapEntires;
/* 'This' pointer for northbridge */
cNorthBridge *nb;
} sMainData;
#endif /* H3FFEAT_H */
|
