Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Mordechai Goodstein | 1063 | 67.97% | 5 | 35.71% |
Shahar S Matityahu | 397 | 25.38% | 2 | 14.29% |
Naftali Goldstein | 93 | 5.95% | 1 | 7.14% |
Haim Dreyfuss | 3 | 0.19% | 1 | 7.14% |
Johannes Berg | 2 | 0.13% | 1 | 7.14% |
Luciano Coelho | 2 | 0.13% | 1 | 7.14% |
Greg Kroah-Hartman | 2 | 0.13% | 1 | 7.14% |
Joe Perches | 1 | 0.06% | 1 | 7.14% |
Gustavo A. R. Silva | 1 | 0.06% | 1 | 7.14% |
Total | 1564 | 14 |
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright (C) 2012-2014, 2018-2020 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ #include "api/commands.h" #include "debugfs.h" #include "dbg.h" #include <linux/seq_file.h> #define FWRT_DEBUGFS_OPEN_WRAPPER(name, buflen, argtype) \ struct dbgfs_##name##_data { \ argtype *arg; \ bool read_done; \ ssize_t rlen; \ char rbuf[buflen]; \ }; \ static int _iwl_dbgfs_##name##_open(struct inode *inode, \ struct file *file) \ { \ struct dbgfs_##name##_data *data; \ \ data = kzalloc(sizeof(*data), GFP_KERNEL); \ if (!data) \ return -ENOMEM; \ \ data->read_done = false; \ data->arg = inode->i_private; \ file->private_data = data; \ \ return 0; \ } #define FWRT_DEBUGFS_READ_WRAPPER(name) \ static ssize_t _iwl_dbgfs_##name##_read(struct file *file, \ char __user *user_buf, \ size_t count, loff_t *ppos) \ { \ struct dbgfs_##name##_data *data = file->private_data; \ \ if (!data->read_done) { \ data->read_done = true; \ data->rlen = iwl_dbgfs_##name##_read(data->arg, \ sizeof(data->rbuf),\ data->rbuf); \ } \ \ if (data->rlen < 0) \ return data->rlen; \ return simple_read_from_buffer(user_buf, count, ppos, \ data->rbuf, data->rlen); \ } static int _iwl_dbgfs_release(struct inode *inode, struct file *file) { kfree(file->private_data); return 0; } #define _FWRT_DEBUGFS_READ_FILE_OPS(name, buflen, argtype) \ FWRT_DEBUGFS_OPEN_WRAPPER(name, buflen, argtype) \ FWRT_DEBUGFS_READ_WRAPPER(name) \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .read = _iwl_dbgfs_##name##_read, \ .open = _iwl_dbgfs_##name##_open, \ .llseek = generic_file_llseek, \ .release = _iwl_dbgfs_release, \ } #define FWRT_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \ static ssize_t _iwl_dbgfs_##name##_write(struct file *file, \ const char __user *user_buf, \ size_t count, loff_t *ppos) \ { \ argtype *arg = \ ((struct dbgfs_##name##_data *)file->private_data)->arg;\ char buf[buflen] = {}; \ size_t buf_size = min(count, sizeof(buf) - 1); \ \ if (copy_from_user(buf, user_buf, buf_size)) \ return -EFAULT; \ \ return iwl_dbgfs_##name##_write(arg, buf, buf_size); \ } #define _FWRT_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen, argtype) \ FWRT_DEBUGFS_OPEN_WRAPPER(name, buflen, argtype) \ FWRT_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \ FWRT_DEBUGFS_READ_WRAPPER(name) \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = _iwl_dbgfs_##name##_write, \ .read = _iwl_dbgfs_##name##_read, \ .open = _iwl_dbgfs_##name##_open, \ .llseek = generic_file_llseek, \ .release = _iwl_dbgfs_release, \ } #define _FWRT_DEBUGFS_WRITE_FILE_OPS(name, buflen, argtype) \ FWRT_DEBUGFS_OPEN_WRAPPER(name, buflen, argtype) \ FWRT_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = _iwl_dbgfs_##name##_write, \ .open = _iwl_dbgfs_##name##_open, \ .llseek = generic_file_llseek, \ .release = _iwl_dbgfs_release, \ } #define FWRT_DEBUGFS_READ_FILE_OPS(name, bufsz) \ _FWRT_DEBUGFS_READ_FILE_OPS(name, bufsz, struct iwl_fw_runtime) #define FWRT_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ _FWRT_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_fw_runtime) #define FWRT_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ _FWRT_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_fw_runtime) #define FWRT_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ debugfs_create_file(alias, mode, parent, fwrt, \ &iwl_dbgfs_##name##_ops); \ } while (0) #define FWRT_DEBUGFS_ADD_FILE(name, parent, mode) \ FWRT_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) static int iwl_fw_send_timestamp_marker_cmd(struct iwl_fw_runtime *fwrt) { struct iwl_mvm_marker marker = { .dw_len = sizeof(struct iwl_mvm_marker) / 4, .marker_id = MARKER_ID_SYNC_CLOCK, /* the real timestamp is taken from the ftrace clock * this is for finding the match between fw and kernel logs */ .timestamp = cpu_to_le64(fwrt->timestamp.seq++), }; struct iwl_host_cmd hcmd = { .id = MARKER_CMD, .flags = CMD_ASYNC, .data[0] = &marker, .len[0] = sizeof(marker), }; return iwl_trans_send_cmd(fwrt->trans, &hcmd); } static int iwl_dbgfs_enabled_severities_write(struct iwl_fw_runtime *fwrt, char *buf, size_t count) { struct iwl_dbg_host_event_cfg_cmd event_cfg; struct iwl_host_cmd hcmd = { .id = iwl_cmd_id(HOST_EVENT_CFG, DEBUG_GROUP, 0), .flags = CMD_ASYNC, .data[0] = &event_cfg, .len[0] = sizeof(event_cfg), }; u32 enabled_severities; int ret = kstrtou32(buf, 10, &enabled_severities); if (ret < 0) return ret; event_cfg.enabled_severities = cpu_to_le32(enabled_severities); ret = iwl_trans_send_cmd(fwrt->trans, &hcmd); IWL_INFO(fwrt, "sent host event cfg with enabled_severities: %u, ret: %d\n", enabled_severities, ret); return ret ?: count; } FWRT_DEBUGFS_WRITE_FILE_OPS(enabled_severities, 16); static void iwl_fw_timestamp_marker_wk(struct work_struct *work) { int ret; struct iwl_fw_runtime *fwrt = container_of(work, struct iwl_fw_runtime, timestamp.wk.work); unsigned long delay = fwrt->timestamp.delay; ret = iwl_fw_send_timestamp_marker_cmd(fwrt); if (!ret && delay) schedule_delayed_work(&fwrt->timestamp.wk, round_jiffies_relative(delay)); else IWL_INFO(fwrt, "stopping timestamp_marker, ret: %d, delay: %u\n", ret, jiffies_to_msecs(delay) / 1000); } void iwl_fw_trigger_timestamp(struct iwl_fw_runtime *fwrt, u32 delay) { IWL_INFO(fwrt, "starting timestamp_marker trigger with delay: %us\n", delay); iwl_fw_cancel_timestamp(fwrt); fwrt->timestamp.delay = msecs_to_jiffies(delay * 1000); schedule_delayed_work(&fwrt->timestamp.wk, round_jiffies_relative(fwrt->timestamp.delay)); } static ssize_t iwl_dbgfs_timestamp_marker_write(struct iwl_fw_runtime *fwrt, char *buf, size_t count) { int ret; u32 delay; ret = kstrtou32(buf, 10, &delay); if (ret < 0) return ret; iwl_fw_trigger_timestamp(fwrt, delay); return count; } static ssize_t iwl_dbgfs_timestamp_marker_read(struct iwl_fw_runtime *fwrt, size_t size, char *buf) { u32 delay_secs = jiffies_to_msecs(fwrt->timestamp.delay) / 1000; return scnprintf(buf, size, "%d\n", delay_secs); } FWRT_DEBUGFS_READ_WRITE_FILE_OPS(timestamp_marker, 16); struct hcmd_write_data { __be32 cmd_id; __be32 flags; __be16 length; u8 data[]; } __packed; static ssize_t iwl_dbgfs_send_hcmd_write(struct iwl_fw_runtime *fwrt, char *buf, size_t count) { size_t header_size = (sizeof(u32) * 2 + sizeof(u16)) * 2; size_t data_size = (count - 1) / 2; int ret; struct hcmd_write_data *data; struct iwl_host_cmd hcmd = { .len = { 0, }, .data = { NULL, }, }; if (fwrt->ops && fwrt->ops->fw_running && !fwrt->ops->fw_running(fwrt->ops_ctx)) return -EIO; if (count < header_size + 1 || count > 1024 * 4) return -EINVAL; data = kmalloc(data_size, GFP_KERNEL); if (!data) return -ENOMEM; ret = hex2bin((u8 *)data, buf, data_size); if (ret) goto out; hcmd.id = be32_to_cpu(data->cmd_id); hcmd.flags = be32_to_cpu(data->flags); hcmd.len[0] = be16_to_cpu(data->length); hcmd.data[0] = data->data; if (count != header_size + hcmd.len[0] * 2 + 1) { IWL_ERR(fwrt, "host command data size does not match header length\n"); ret = -EINVAL; goto out; } if (fwrt->ops && fwrt->ops->send_hcmd) ret = fwrt->ops->send_hcmd(fwrt->ops_ctx, &hcmd); else ret = -EPERM; if (ret < 0) goto out; if (hcmd.flags & CMD_WANT_SKB) iwl_free_resp(&hcmd); out: kfree(data); return ret ?: count; } FWRT_DEBUGFS_WRITE_FILE_OPS(send_hcmd, 512); static ssize_t iwl_dbgfs_fw_dbg_domain_read(struct iwl_fw_runtime *fwrt, size_t size, char *buf) { return scnprintf(buf, size, "0x%08x\n", fwrt->trans->dbg.domains_bitmap); } FWRT_DEBUGFS_READ_FILE_OPS(fw_dbg_domain, 20); struct iwl_dbgfs_fw_info_priv { struct iwl_fw_runtime *fwrt; }; struct iwl_dbgfs_fw_info_state { loff_t pos; }; static void *iwl_dbgfs_fw_info_seq_next(struct seq_file *seq, void *v, loff_t *pos) { struct iwl_dbgfs_fw_info_state *state = v; struct iwl_dbgfs_fw_info_priv *priv = seq->private; const struct iwl_fw *fw = priv->fwrt->fw; *pos = ++state->pos; if (*pos >= fw->ucode_capa.n_cmd_versions) return NULL; return state; } static void iwl_dbgfs_fw_info_seq_stop(struct seq_file *seq, void *v) { kfree(v); } static void *iwl_dbgfs_fw_info_seq_start(struct seq_file *seq, loff_t *pos) { struct iwl_dbgfs_fw_info_priv *priv = seq->private; const struct iwl_fw *fw = priv->fwrt->fw; struct iwl_dbgfs_fw_info_state *state; if (*pos >= fw->ucode_capa.n_cmd_versions) return NULL; state = kzalloc(sizeof(*state), GFP_KERNEL); if (!state) return NULL; state->pos = *pos; return state; }; static int iwl_dbgfs_fw_info_seq_show(struct seq_file *seq, void *v) { struct iwl_dbgfs_fw_info_state *state = v; struct iwl_dbgfs_fw_info_priv *priv = seq->private; const struct iwl_fw *fw = priv->fwrt->fw; const struct iwl_fw_cmd_version *ver; u32 cmd_id; if (!state->pos) seq_puts(seq, "fw_api_ver:\n"); ver = &fw->ucode_capa.cmd_versions[state->pos]; cmd_id = iwl_cmd_id(ver->cmd, ver->group, 0); seq_printf(seq, " 0x%04x:\n", cmd_id); seq_printf(seq, " name: %s\n", iwl_get_cmd_string(priv->fwrt->trans, cmd_id)); seq_printf(seq, " cmd_ver: %d\n", ver->cmd_ver); seq_printf(seq, " notif_ver: %d\n", ver->notif_ver); return 0; } static const struct seq_operations iwl_dbgfs_info_seq_ops = { .start = iwl_dbgfs_fw_info_seq_start, .next = iwl_dbgfs_fw_info_seq_next, .stop = iwl_dbgfs_fw_info_seq_stop, .show = iwl_dbgfs_fw_info_seq_show, }; static int iwl_dbgfs_fw_info_open(struct inode *inode, struct file *filp) { struct iwl_dbgfs_fw_info_priv *priv; priv = __seq_open_private(filp, &iwl_dbgfs_info_seq_ops, sizeof(*priv)); if (!priv) return -ENOMEM; priv->fwrt = inode->i_private; return 0; } static const struct file_operations iwl_dbgfs_fw_info_ops = { .owner = THIS_MODULE, .open = iwl_dbgfs_fw_info_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release_private, }; void iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt, struct dentry *dbgfs_dir) { INIT_DELAYED_WORK(&fwrt->timestamp.wk, iwl_fw_timestamp_marker_wk); FWRT_DEBUGFS_ADD_FILE(timestamp_marker, dbgfs_dir, 0200); FWRT_DEBUGFS_ADD_FILE(fw_info, dbgfs_dir, 0200); FWRT_DEBUGFS_ADD_FILE(send_hcmd, dbgfs_dir, 0200); FWRT_DEBUGFS_ADD_FILE(enabled_severities, dbgfs_dir, 0200); FWRT_DEBUGFS_ADD_FILE(fw_dbg_domain, dbgfs_dir, 0400); }
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