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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/*++
Copyright (c) 2004 - 2005, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
Perf.c
Abstract:
Support for performance primitives.
--*/
#include "Tiano.h"
#include "Pei.h"
#include "PeiLib.h"
#include "PeiHob.h"
#include EFI_GUID_DEFINITION (PeiPerformanceHob)
//
// Perfomance HOB data definitions
//
#define MAX_PEI_PERF_LOG_ENTRIES 28
//
// Prototype functions
//
EFI_STATUS
GetTimerValue (
OUT UINT64 *TimerValue
);
VOID
EFIAPI
PeiPerfMeasure (
EFI_PEI_SERVICES **PeiServices,
IN UINT16 *Token,
IN EFI_FFS_FILE_HEADER *FileHeader,
IN BOOLEAN EntryExit,
IN UINT64 Value
)
/*++
Routine Description:
Log a timestamp count.
Arguments:
PeiServices - Pointer to the PEI Core Services table
Token - Pointer to Token Name
FileHeader - Pointer to the file header
EntryExit - Indicates start or stop measurement
Value - The start time or the stop time
Returns:
--*/
{
EFI_STATUS Status;
EFI_HOB_GUID_TYPE *Hob;
EFI_HOB_GUID_DATA_PERFORMANCE_LOG *PerfHobData;
PEI_PERFORMANCE_MEASURE_LOG_ENTRY *Log;
EFI_PEI_PPI_DESCRIPTOR *PerfHobDescriptor;
UINT64 TimeCount;
INTN Index;
UINTN Index2;
EFI_GUID *Guid;
EFI_GUID *CheckGuid;
TimeCount = 0;
//
// Get the END time as early as possible to make it more accurate.
//
if (EntryExit) {
GetTimerValue (&TimeCount);
}
//
// Locate the Pei Performance Log Hob.
//
Status = (*PeiServices)->LocatePpi (
PeiServices,
&gEfiPeiPerformanceHobGuid,
0,
&PerfHobDescriptor,
NULL
);
//
// If the Performance Hob was not found, build and install one.
//
if (EFI_ERROR(Status)) {
Status = PeiBuildHobGuid (
PeiServices,
&gEfiPeiPerformanceHobGuid,
(sizeof(EFI_HOB_GUID_DATA_PERFORMANCE_LOG) +
((MAX_PEI_PERF_LOG_ENTRIES-1) *
sizeof(PEI_PERFORMANCE_MEASURE_LOG_ENTRY)) +
sizeof(EFI_PEI_PPI_DESCRIPTOR)
),
&Hob
);
ASSERT_PEI_ERROR(PeiServices, Status);
PerfHobData = (EFI_HOB_GUID_DATA_PERFORMANCE_LOG *)(Hob+1);
PerfHobData->NumberOfEntries = 0;
PerfHobDescriptor = (EFI_PEI_PPI_DESCRIPTOR *)((UINT8 *)(PerfHobData+1) +
(sizeof(PEI_PERFORMANCE_MEASURE_LOG_ENTRY) *
(MAX_PEI_PERF_LOG_ENTRIES-1)
)
);
PerfHobDescriptor->Flags = (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);
PerfHobDescriptor->Guid = &gEfiPeiPerformanceHobGuid;
PerfHobDescriptor->Ppi = NULL;
(*PeiServices)->InstallPpi (
PeiServices,
PerfHobDescriptor
);
}
PerfHobData = (EFI_HOB_GUID_DATA_PERFORMANCE_LOG *)(((UINT8 *)(PerfHobDescriptor)) -
((sizeof(PEI_PERFORMANCE_MEASURE_LOG_ENTRY) *
(MAX_PEI_PERF_LOG_ENTRIES-1)
)
+ sizeof(EFI_HOB_GUID_DATA_PERFORMANCE_LOG)
)
);
if (PerfHobData->NumberOfEntries >= MAX_PEI_PERF_LOG_ENTRIES) {
return;
}
if (!EntryExit) {
Log = &(PerfHobData->Log[PerfHobData->NumberOfEntries]);
(*PeiServices)->SetMem (Log, sizeof(PEI_PERFORMANCE_MEASURE_LOG_ENTRY), 0);
//
// If not NULL pointer, copy the file name
//
if (FileHeader != NULL) {
Log->Name = FileHeader->Name;
}
//
// Copy the description string
//
(*PeiServices)->CopyMem (
&(Log->DescriptionString),
Token,
(PEI_PERF_MAX_DESC_STRING-1) * sizeof(UINT16)
);
//
// Get the start time as late as possible to make it more accurate.
//
GetTimerValue (&TimeCount);
//
// Record the time stamp.
//
if (Value != 0) {
Log->StartTimeCount = Value;
} else {
Log->StartTimeCount = TimeCount;
}
Log->StopTimeCount = 0;
//
// Increment the number of valid log entries.
//
PerfHobData->NumberOfEntries++;
} else {
for (Index = PerfHobData->NumberOfEntries-1; Index >= 0; Index--) {
Log = NULL;
for (Index2 = 0; Index2 < PEI_PERF_MAX_DESC_STRING; Index2++) {
if (PerfHobData->Log[Index].DescriptionString[Index2] == 0) {
Log = &(PerfHobData->Log[Index]);
break;
}
if (PerfHobData->Log[Index].DescriptionString[Index2] !=
Token[Index2]) {
break;
}
}
if (Log != NULL) {
if (FileHeader != NULL) {
Guid = &(Log->Name);
CheckGuid = &(FileHeader->Name);
if ((((INT32 *)Guid)[0] == ((INT32 *)CheckGuid)[0]) &&
(((INT32 *)Guid)[1] == ((INT32 *)CheckGuid)[1]) &&
(((INT32 *)Guid)[2] == ((INT32 *)CheckGuid)[2]) &&
(((INT32 *)Guid)[3] == ((INT32 *)CheckGuid)[3])) {
if (Value != 0) {
Log->StopTimeCount = Value;
} else {
Log->StopTimeCount = TimeCount;
}
break;
}
} else {
if (Value != 0) {
Log->StopTimeCount = Value;
} else {
Log->StopTimeCount = TimeCount;
}
break;
}
}
}
}
return;
}
|
