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
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/xscom/runtime/rt_xscom.C $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* COPYRIGHT International Business Machines Corp. 2013,2014 */
/* */
/* p1 */
/* */
/* Object Code Only (OCO) source materials */
/* Licensed Internal Code Source Materials */
/* IBM HostBoot Licensed Internal Code */
/* */
/* 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. */
/* */
/* Origin: 30 */
/* */
/* IBM_PROLOG_END_TAG */
#include <devicefw/driverif.H>
#include <trace/interface.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
#include <targeting/common/targetservice.H>
#include <targeting/common/utilFilter.H>
#include <xscom/xscomreasoncodes.H>
#include "../xscom.H"
#include <assert.h>
#include <errl/errludlogregister.H>
#include <runtime/interface.h>
#include <errl/errludtarget.H>
#include <runtime/rt_targeting.H>
// Trace definition
trace_desc_t* g_trac_xscom = NULL;
TRAC_INIT(&g_trac_xscom, "XSCOM", 2*KILOBYTE, TRACE::BUFFER_SLOW);
namespace XSCOM
{
DEVICE_REGISTER_ROUTE(DeviceFW::WILDCARD,
DeviceFW::XSCOM,
TARGETING::TYPE_PROC,
xscomPerformOp);
// Direct all scom calls though this interface at runtime
DEVICE_REGISTER_ROUTE(DeviceFW::WILDCARD,
DeviceFW::FSISCOM,
TARGETING::TYPE_PROC,
xscomPerformOp);
DEVICE_REGISTER_ROUTE(DeviceFW::WILDCARD,
DeviceFW::FSISCOM,
TARGETING::TYPE_MEMBUF,
xscomPerformOp);
DEVICE_REGISTER_ROUTE(DeviceFW::WILDCARD,
DeviceFW::IBSCOM,
TARGETING::TYPE_MEMBUF,
xscomPerformOp);
/**
* @brief Internal routine that verifies the validity of input parameters
* for an XSCOM access.
*
* @param[in] i_opType Operation type, see DeviceFW::OperationType
* in driverif.H
* @param[in] i_target XSCom target
* @param[in/out] i_buffer Read: Pointer to output data storage
* Write: Pointer to input data storage
* @param[in/out] i_buflen Input: size of io_buffer (in bytes)
* Output:
* Read: Size of output data
* Write: Size of data written
* @param[in] i_args This is an argument list for DD framework.
* In this function, there's only one argument,
* which is the MMIO XSCom address
* @return errlHndl_t
*/
errlHndl_t xscomOpSanityCheck(const DeviceFW::OperationType i_opType,
const TARGETING::Target* i_target,
const void* i_buffer,
const size_t& i_buflen,
const va_list i_args);
errlHndl_t xscomOpSanityCheck(const DeviceFW::OperationType i_opType,
const TARGETING::Target* i_target,
const void* i_buffer,
const size_t& i_buflen,
const va_list i_args){
errlHndl_t l_err = NULL;
do
{
// Verify data buffer
if ( (i_buflen < XSCOM_BUFFER_SIZE) ||
(i_buffer == NULL) )
{
/*@
* @errortype
* @moduleid XSCOM_RT_SANITY_CHECK
* @reasoncode XSCOM_INVALID_DATA_BUFFER
* @userdata1 Buffer size
* @userdata2 XSCom address
* @devdesc XSCOM buffer size < 8 bytes or NULL data buff
*/
l_err =
new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
XSCOM_RT_SANITY_CHECK,
XSCOM_INVALID_DATA_BUFFER,
i_buflen,
va_arg(i_args,uint64_t));
break;
}
// Verify OP type
if ( (i_opType != DeviceFW::READ) &&
(i_opType != DeviceFW::WRITE) )
{
/*@
* @errortype
* @moduleid XSCOM_RT_SANITY_CHECK
* @reasoncode XSCOM_INVALID_OP_TYPE
* @userdata1 Operation type
* @userdata2 XSCom address
* @devdesc XSCOM invalid operation type
*/
l_err =
new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
XSCOM_RT_SANITY_CHECK,
XSCOM_INVALID_OP_TYPE,
i_opType,
va_arg(i_args,uint64_t));
break;
}
} while(0);
return l_err;
}
/**
* @brief Do the scom operation
*/
errlHndl_t xScomDoOp(DeviceFW::OperationType i_ioType,
TARGETING::Target * i_target,
uint64_t i_scomAddr,
void * io_buffer)
{
errlHndl_t l_err = NULL;
int rc = 0;
RT_TARG::rtChipId_t proc_id = 0;
// Convert target to something Sapphire understands
l_err = RT_TARG::getRtTarget(i_target,
proc_id);
if(l_err)
{
return l_err;
}
if(g_hostInterfaces != NULL &&
g_hostInterfaces->scom_read != NULL &&
g_hostInterfaces->scom_write != NULL)
{
if(i_ioType == DeviceFW::READ)
{
rc =
g_hostInterfaces->scom_read(proc_id,
i_scomAddr,
io_buffer
);
}
else if (i_ioType == DeviceFW::WRITE)
{
rc =
g_hostInterfaces->scom_write(proc_id,
i_scomAddr,
io_buffer
);
}
if(rc)
{
// convert rc to error log
/*@
* @errortype
* @moduleid XSCOM_RT_DO_OP
* @reasoncode XSCOM_RUNTIME_ERR
* @userdata1 Hypervisor return code
* @userdata2 SCOM address
* @devdesc XSCOM access error
*/
l_err = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_INFORMATIONAL,
XSCOM_RT_DO_OP,
XSCOM_RUNTIME_ERR,
rc,
i_scomAddr);
// TODO - RTC 86782 need to know what kind of errors Sapphire can
// return - could effect callout.
l_err->addHwCallout(i_target,
HWAS::SRCI_PRIORITY_LOW,
HWAS::NO_DECONFIG,
HWAS::GARD_NULL);
// Note: no trace buffer available at runtime
}
}
else // Hypervisor interface not initialized
{
TRACFCOMP(g_trac_xscom,ERR_MRK"Hypervisor scom interface not linked");
/*@
* @errortype
* @moduleid XSCOM_RT_DO_OP
* @reasoncode XSCOM_RUNTIME_INTERFACE_ERR
* @userdata1 0
* @userdata2 SCOM address
* @devdesc XSCOM runtime interface not linked.
*/
l_err = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_INFORMATIONAL,
XSCOM_RT_DO_OP,
XSCOM_RUNTIME_INTERFACE_ERR,
0,
i_scomAddr);
l_err->addProcedureCallout(HWAS::EPUB_PRC_HB_CODE,
HWAS::SRCI_PRIORITY_HIGH);
}
return l_err;
}
errlHndl_t xscomPerformOp(DeviceFW::OperationType i_opType,
TARGETING::Target* i_target,
void* io_buffer,
size_t& io_buflen,
int64_t i_accessType,
va_list i_args)
{
TRACDCOMP(g_trac_xscom,ENTER_MRK"xscomPerformOp");
errlHndl_t l_err = NULL;
uint64_t l_addr = va_arg(i_args,uint64_t);
l_err = xscomOpSanityCheck(i_opType,
i_target,
io_buffer,
io_buflen,
i_args);
if (!l_err)
{
l_err = xScomDoOp(i_opType,
i_target,
l_addr,
io_buffer);
}
TRACDCOMP(g_trac_xscom,EXIT_MRK"xscomPerformOp");
return l_err;
}
}; // end namespace XSCOM
|