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
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2020-2021 Intel Corporation.
*/
#include <linux/vmalloc.h>
#include "iosm_ipc_chnl_cfg.h"
#include "iosm_ipc_coredump.h"
#include "iosm_ipc_devlink.h"
#include "iosm_ipc_flash.h"
/* Coredump list */
static struct iosm_coredump_file_info list[IOSM_NOF_CD_REGION] = {
{"report.json", REPORT_JSON_SIZE,},
{"coredump.fcd", COREDUMP_FCD_SIZE,},
{"cdd.log", CDD_LOG_SIZE,},
{"eeprom.bin", EEPROM_BIN_SIZE,},
{"bootcore_trace.bin", BOOTCORE_TRC_BIN_SIZE,},
{"bootcore_prev_trace.bin", BOOTCORE_PREV_TRC_BIN_SIZE,},
};
/* Get the param values for the specific param ID's */
static int ipc_devlink_get_param(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct iosm_devlink *ipc_devlink = devlink_priv(dl);
if (id == IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH)
ctx->val.vu8 = ipc_devlink->param.erase_full_flash;
return 0;
}
/* Set the param values for the specific param ID's */
static int ipc_devlink_set_param(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct iosm_devlink *ipc_devlink = devlink_priv(dl);
if (id == IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH)
ipc_devlink->param.erase_full_flash = ctx->val.vu8;
return 0;
}
/* Devlink param structure array */
static const struct devlink_param iosm_devlink_params[] = {
DEVLINK_PARAM_DRIVER(IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH,
"erase_full_flash", DEVLINK_PARAM_TYPE_BOOL,
BIT(DEVLINK_PARAM_CMODE_RUNTIME),
ipc_devlink_get_param, ipc_devlink_set_param,
NULL),
};
/* Get devlink flash component type */
static enum iosm_flash_comp_type
ipc_devlink_get_flash_comp_type(const char comp_str[], u32 len)
{
enum iosm_flash_comp_type fls_type;
if (!strncmp("PSI", comp_str, len))
fls_type = FLASH_COMP_TYPE_PSI;
else if (!strncmp("EBL", comp_str, len))
fls_type = FLASH_COMP_TYPE_EBL;
else if (!strncmp("FLS", comp_str, len))
fls_type = FLASH_COMP_TYPE_FLS;
else
fls_type = FLASH_COMP_TYPE_INVAL;
return fls_type;
}
/* Function triggered on devlink flash command
* Flash update function which calls multiple functions based on
* component type specified in the flash command
*/
static int ipc_devlink_flash_update(struct devlink *devlink,
struct devlink_flash_update_params *params,
struct netlink_ext_ack *extack)
{
struct iosm_devlink *ipc_devlink = devlink_priv(devlink);
enum iosm_flash_comp_type fls_type;
struct iosm_devlink_image *header;
int rc = -EINVAL;
u8 *mdm_rsp;
header = (struct iosm_devlink_image *)params->fw->data;
if (!header || params->fw->size <= IOSM_DEVLINK_HDR_SIZE ||
(memcmp(header->magic_header, IOSM_DEVLINK_MAGIC_HEADER,
IOSM_DEVLINK_MAGIC_HEADER_LEN) != 0))
return -EINVAL;
mdm_rsp = kzalloc(IOSM_EBL_DW_PACK_SIZE, GFP_KERNEL);
if (!mdm_rsp)
return -ENOMEM;
fls_type = ipc_devlink_get_flash_comp_type(header->image_type,
IOSM_DEVLINK_MAX_IMG_LEN);
switch (fls_type) {
case FLASH_COMP_TYPE_PSI:
rc = ipc_flash_boot_psi(ipc_devlink, params->fw);
break;
case FLASH_COMP_TYPE_EBL:
rc = ipc_flash_boot_ebl(ipc_devlink, params->fw);
if (rc)
break;
rc = ipc_flash_boot_set_capabilities(ipc_devlink, mdm_rsp);
if (rc)
break;
rc = ipc_flash_read_swid(ipc_devlink, mdm_rsp);
break;
case FLASH_COMP_TYPE_FLS:
rc = ipc_flash_send_fls(ipc_devlink, params->fw, mdm_rsp);
break;
default:
devlink_flash_update_status_notify(devlink, "Invalid component",
NULL, 0, 0);
break;
}
if (!rc)
devlink_flash_update_status_notify(devlink, "Flashing success",
header->image_type, 0, 0);
else
devlink_flash_update_status_notify(devlink, "Flashing failed",
header->image_type, 0, 0);
kfree(mdm_rsp);
return rc;
}
/* Call back function for devlink ops */
static const struct devlink_ops devlink_flash_ops = {
.flash_update = ipc_devlink_flash_update,
};
/**
* ipc_devlink_send_cmd - Send command to Modem
* @ipc_devlink: Pointer to struct iosm_devlink
* @cmd: Command to be sent to modem
* @entry: Command entry number
*
* Returns: 0 on success and failure value on error
*/
int ipc_devlink_send_cmd(struct iosm_devlink *ipc_devlink, u16 cmd, u32 entry)
{
struct iosm_rpsi_cmd rpsi_cmd;
rpsi_cmd.param.dword = cpu_to_le32(entry);
rpsi_cmd.cmd = cpu_to_le16(cmd);
rpsi_cmd.crc = rpsi_cmd.param.word[0] ^ rpsi_cmd.param.word[1] ^
rpsi_cmd.cmd;
return ipc_imem_sys_devlink_write(ipc_devlink, (u8 *)&rpsi_cmd,
sizeof(rpsi_cmd));
}
/* Function to create snapshot */
static int ipc_devlink_coredump_snapshot(struct devlink *dl,
const struct devlink_region_ops *ops,
struct netlink_ext_ack *extack,
u8 **data)
{
struct iosm_devlink *ipc_devlink = devlink_priv(dl);
struct iosm_coredump_file_info *cd_list = ops->priv;
u32 region_size;
int rc;
dev_dbg(ipc_devlink->dev, "Region:%s, ID:%d", ops->name,
cd_list->entry);
region_size = cd_list->default_size;
rc = ipc_coredump_collect(ipc_devlink, data, cd_list->entry,
region_size);
if (rc) {
dev_err(ipc_devlink->dev, "Fail to create snapshot,err %d", rc);
goto coredump_collect_err;
}
/* Send coredump end cmd indicating end of coredump collection */
if (cd_list->entry == (IOSM_NOF_CD_REGION - 1))
ipc_coredump_get_list(ipc_devlink, rpsi_cmd_coredump_end);
return 0;
coredump_collect_err:
ipc_coredump_get_list(ipc_devlink, rpsi_cmd_coredump_end);
return rc;
}
/* To create regions for coredump files */
static int ipc_devlink_create_region(struct iosm_devlink *devlink)
{
struct devlink_region_ops *mdm_coredump;
int rc = 0;
int i;
mdm_coredump = devlink->iosm_devlink_mdm_coredump;
for (i = 0; i < IOSM_NOF_CD_REGION; i++) {
mdm_coredump[i].name = list[i].filename;
mdm_coredump[i].snapshot = ipc_devlink_coredump_snapshot;
mdm_coredump[i].destructor = vfree;
devlink->cd_regions[i] =
devlink_region_create(devlink->devlink_ctx,
&mdm_coredump[i], MAX_SNAPSHOTS,
list[i].default_size);
if (IS_ERR(devlink->cd_regions[i])) {
rc = PTR_ERR(devlink->cd_regions[i]);
dev_err(devlink->dev, "Devlink region fail,err %d", rc);
/* Delete previously created regions */
for (i--; i >= 0; i--)
devlink_region_destroy(devlink->cd_regions[i]);
goto region_create_fail;
}
list[i].entry = i;
mdm_coredump[i].priv = list + i;
}
region_create_fail:
return rc;
}
/* To Destroy devlink regions */
static void ipc_devlink_destroy_region(struct iosm_devlink *ipc_devlink)
{
u8 i;
for (i = 0; i < IOSM_NOF_CD_REGION; i++)
devlink_region_destroy(ipc_devlink->cd_regions[i]);
}
/**
* ipc_devlink_init - Initialize/register devlink to IOSM driver
* @ipc_imem: Pointer to struct iosm_imem
*
* Returns: Pointer to iosm_devlink on success and NULL on failure
*/
struct iosm_devlink *ipc_devlink_init(struct iosm_imem *ipc_imem)
{
struct ipc_chnl_cfg chnl_cfg_flash = { 0 };
struct iosm_devlink *ipc_devlink;
struct devlink *devlink_ctx;
int rc;
devlink_ctx = devlink_alloc(&devlink_flash_ops,
sizeof(struct iosm_devlink),
ipc_imem->dev);
if (!devlink_ctx) {
dev_err(ipc_imem->dev, "devlink_alloc failed");
goto devlink_alloc_fail;
}
ipc_devlink = devlink_priv(devlink_ctx);
ipc_devlink->devlink_ctx = devlink_ctx;
ipc_devlink->pcie = ipc_imem->pcie;
ipc_devlink->dev = ipc_imem->dev;
rc = devlink_params_register(devlink_ctx, iosm_devlink_params,
ARRAY_SIZE(iosm_devlink_params));
if (rc) {
dev_err(ipc_devlink->dev,
"devlink_params_register failed. rc %d", rc);
goto param_reg_fail;
}
ipc_devlink->cd_file_info = list;
rc = ipc_devlink_create_region(ipc_devlink);
if (rc) {
dev_err(ipc_devlink->dev, "Devlink Region create failed, rc %d",
rc);
goto region_create_fail;
}
if (ipc_chnl_cfg_get(&chnl_cfg_flash, IPC_MEM_CTRL_CHL_ID_7) < 0)
goto chnl_get_fail;
ipc_imem_channel_init(ipc_imem, IPC_CTYPE_CTRL,
chnl_cfg_flash, IRQ_MOD_OFF);
init_completion(&ipc_devlink->devlink_sio.read_sem);
skb_queue_head_init(&ipc_devlink->devlink_sio.rx_list);
devlink_register(devlink_ctx);
dev_dbg(ipc_devlink->dev, "iosm devlink register success");
return ipc_devlink;
chnl_get_fail:
ipc_devlink_destroy_region(ipc_devlink);
region_create_fail:
devlink_params_unregister(devlink_ctx, iosm_devlink_params,
ARRAY_SIZE(iosm_devlink_params));
param_reg_fail:
devlink_free(devlink_ctx);
devlink_alloc_fail:
return NULL;
}
/**
* ipc_devlink_deinit - To unintialize the devlink from IOSM driver.
* @ipc_devlink: Devlink instance
*/
void ipc_devlink_deinit(struct iosm_devlink *ipc_devlink)
{
struct devlink *devlink_ctx = ipc_devlink->devlink_ctx;
devlink_unregister(devlink_ctx);
ipc_devlink_destroy_region(ipc_devlink);
devlink_params_unregister(devlink_ctx, iosm_devlink_params,
ARRAY_SIZE(iosm_devlink_params));
if (ipc_devlink->devlink_sio.devlink_read_pend) {
complete(&ipc_devlink->devlink_sio.read_sem);
complete(&ipc_devlink->devlink_sio.channel->ul_sem);
}
if (!ipc_devlink->devlink_sio.devlink_read_pend)
skb_queue_purge(&ipc_devlink->devlink_sio.rx_list);
ipc_imem_sys_devlink_close(ipc_devlink);
devlink_free(devlink_ctx);
}
|
