1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2020-2021 Intel Corporation.
5 #include <linux/vmalloc.h>
7 #include "iosm_ipc_coredump.h"
10 * ipc_coredump_collect - To collect coredump
11 * @devlink: Pointer to devlink instance.
12 * @data: Pointer to snapshot
13 * @entry: ID of requested snapshot
14 * @region_size: Region size
16 * Returns: 0 on success, error on failure
18 int ipc_coredump_collect(struct iosm_devlink *devlink, u8 **data, int entry,
21 int ret, bytes_to_read, bytes_read = 0, i = 0;
25 data_ptr = vmalloc(region_size);
29 remaining = devlink->cd_file_info[entry].actual_size;
30 ret = ipc_devlink_send_cmd(devlink, rpsi_cmd_coredump_get, entry);
32 dev_err(devlink->dev, "Send coredump_get cmd failed");
35 while (remaining > 0) {
36 bytes_to_read = min(remaining, MAX_DATA_SIZE);
38 ret = ipc_imem_sys_devlink_read(devlink, data_ptr + i,
39 bytes_to_read, &bytes_read);
41 dev_err(devlink->dev, "CD data read failed");
44 remaining -= bytes_read;
58 * ipc_coredump_get_list - Get coredump list from modem
59 * @devlink: Pointer to devlink instance.
60 * @cmd: RPSI command to be sent
62 * Returns: 0 on success, error on failure
64 int ipc_coredump_get_list(struct iosm_devlink *devlink, u16 cmd)
66 u32 byte_read, num_entries, file_size;
67 struct iosm_cd_table *cd_table;
68 u8 size[MAX_SIZE_LEN], i;
72 cd_table = kzalloc(MAX_CD_LIST_SIZE, GFP_KERNEL);
78 ret = ipc_devlink_send_cmd(devlink, cmd, MAX_CD_LIST_SIZE);
80 dev_err(devlink->dev, "rpsi_cmd_coredump_start failed");
84 ret = ipc_imem_sys_devlink_read(devlink, (u8 *)cd_table,
85 MAX_CD_LIST_SIZE, &byte_read);
87 dev_err(devlink->dev, "Coredump data is invalid");
91 if (byte_read != MAX_CD_LIST_SIZE)
94 if (cmd == rpsi_cmd_coredump_start) {
95 num_entries = le32_to_cpu(cd_table->list.num_entries);
96 if (num_entries == 0 || num_entries > IOSM_NOF_CD_REGION) {
101 for (i = 0; i < num_entries; i++) {
102 file_size = le32_to_cpu(cd_table->list.entry[i].size);
103 filename = cd_table->list.entry[i].filename;
105 if (file_size > devlink->cd_file_info[i].default_size) {
110 devlink->cd_file_info[i].actual_size = file_size;
111 dev_dbg(devlink->dev, "file: %s actual size %d",
112 filename, file_size);
113 devlink_flash_update_status_notify(devlink->devlink_ctx,
116 snprintf(size, sizeof(size), "%d", file_size);
117 devlink_flash_update_status_notify(devlink->devlink_ctx,