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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: chips/p9/procedures/hwp/memory/lib/utils/pos.H $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* EKB Project */
/* */
/* COPYRIGHT 2015,2016 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* IBM_PROLOG_END_TAG */
///
/// @file pos.H
/// @brief Tools to return target's position from a fapi2 target
///
// *HWP HWP Owner: Brian Silver <bsilver@us.ibm.com>
// *HWP HWP Backup: Andre Marin <aamarin@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 2
// *HWP Consumed by: HB:FSP
#ifndef _MSS_POS_H_
#define _MSS_POS_H_
#include <fapi2.H>
#include <lib/shared/mss_const.H>
namespace mss
{
///
/// @brief Trait classes for the mss::pos functions
///
template<fapi2::TargetType T>
class posTraits
{
public:
// Needed as some targets have chip_unit_pos attributes,
// uint8_t and some attr_pos, uint32_t. We don't really care
// but the type checking in the macros sure does ...
typedef uint8_t pos_type;
};
///
/// @brief DIMM Trait class for the mss::pos functions
///
template<>
class posTraits<fapi2::TARGET_TYPE_DIMM>
{
public:
typedef uint32_t pos_type;
};
///
/// @brief Processor Trait class for the mss::pos functions
///
template<>
class posTraits<fapi2::TARGET_TYPE_PROC_CHIP>
{
public:
typedef uint32_t pos_type;
};
///
/// @brief Return a target's position from a fapi2 target
/// @tparam T the fapi2::TargetType
/// @param[in] i_target a target representing the target in question
/// @return The position relative to the chip
///
template< fapi2::TargetType T, typename TT = posTraits<T> >
inline typename TT::pos_type pos(const fapi2::Target<T>& i_target)
{
typename TT::pos_type i_pos = 0;
// Don't use FAPI_TRY as you'll mess up fapi2::current_err which
// lmits where this can be used.
if (FAPI_ATTR_GET(fapi2::ATTR_CHIP_UNIT_POS, i_target, i_pos) != fapi2::FAPI2_RC_SUCCESS)
{
goto fapi_try_exit;
}
return i_pos;
fapi_try_exit:
// If we can't get our unit position, we're in other trouble
FAPI_ERR("can't get our chip unit position");
fapi2::Assert(false);
return 0;
}
///
/// @brief Return a DIMM's position from a fapi2 target
/// @param[in] i_target a target representing the target in question
/// @return The position relative to the chip
///
template<>
inline posTraits<fapi2::TARGET_TYPE_DIMM>::pos_type pos(const fapi2::Target<fapi2::TARGET_TYPE_DIMM>& i_target)
{
posTraits<fapi2::TARGET_TYPE_DIMM>::pos_type i_pos = 0;
if (FAPI_ATTR_GET(fapi2::ATTR_POS, i_target, i_pos) != fapi2::FAPI2_RC_SUCCESS)
{
goto fapi_try_exit;
}
return i_pos;
fapi_try_exit:
// If we can't get our position, we're in other trouble
FAPI_ERR("can't get our position");
fapi2::Assert(false);
return 0;
}
///
/// @brief Return a processor's position from a fapi2 target
/// @param[in] i_target a target representing the target in question
/// @return The position relative to the chip
///
template<>
inline posTraits<fapi2::TARGET_TYPE_PROC_CHIP>::pos_type pos(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target)
{
posTraits<fapi2::TARGET_TYPE_PROC_CHIP>::pos_type i_pos = 0;
if (FAPI_ATTR_GET(fapi2::ATTR_POS, i_target, i_pos) != fapi2::FAPI2_RC_SUCCESS)
{
goto fapi_try_exit;
}
return i_pos;
fapi_try_exit:
// If we can't get our position, we're in other trouble
FAPI_ERR("can't get our position");
fapi2::Assert(false);
return 0;
}
///
/// @brief Return a target's relative position from a fapi2 target
/// @tparam T the fapi2::TargetType
/// @tparam R the fapi2::TargetType we want the position relative to
/// @param[in] i_target a target representing the target in question
/// @return The position relative to chiplet R
///
template< fapi2::TargetType R, fapi2::TargetType T, typename TT = posTraits<T> >
inline typename TT::pos_type relative_pos(const fapi2::Target<T>& i_target);
template<>
inline uint8_t relative_pos<fapi2::TARGET_TYPE_MCBIST>(const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target)
{
return pos(i_target) % PORTS_PER_MCBIST;
}
///
/// @brief Return a target's fapi position from a fapi2 target
/// @tparam T the fapi2::TargetType
/// @param[in] i_target a target representing the target in question
/// @return The position relative to the system
///
template< fapi2::TargetType T, typename TT = posTraits<T> >
inline uint32_t fapi_pos(const fapi2::Target<T>& i_target)
{
// Doesn't look like ATTR_FAPI_POS is supported in Cronus yet, so we'll
// use our chip-relative position for the time being.
#ifdef ATTR_FAPI_POS_SUPPORTED
uint32_t i_pos = 0;
// Don't use FAPI_TRY as you'll mess up fapi2::current_err which
// lmits where this can be used.
if (FAPI_ATTR_GET(fapi2::ATTR_FAPI_POS, i_target, i_pos) != fapi2::FAPI2_RC_SUCCESS)
{
goto fapi_try_exit;
}
return i_pos;
fapi_try_exit:
// If we can't get our fapi position, we're in other trouble
FAPI_ERR("can't get our fapi position");
fapi2::Assert(false);
return 0;
#else
return pos(i_target);
#endif
}
}
#endif
|
