blob: a654147d3cd61a162c9c9cb1a70078cf331e3e6c [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2018-2020 Intel Corporation
*/
#include <linux/firmware.h>
#include "iwl-drv.h"
#include "iwl-trans.h"
#include "iwl-dbg-tlv.h"
#include "fw/dbg.h"
#include "fw/runtime.h"
/**
* enum iwl_dbg_tlv_type - debug TLV types
* @IWL_DBG_TLV_TYPE_DEBUG_INFO: debug info TLV
* @IWL_DBG_TLV_TYPE_BUF_ALLOC: buffer allocation TLV
* @IWL_DBG_TLV_TYPE_HCMD: host command TLV
* @IWL_DBG_TLV_TYPE_REGION: region TLV
* @IWL_DBG_TLV_TYPE_TRIGGER: trigger TLV
* @IWL_DBG_TLV_TYPE_NUM: number of debug TLVs
*/
enum iwl_dbg_tlv_type {
IWL_DBG_TLV_TYPE_DEBUG_INFO =
IWL_UCODE_TLV_TYPE_DEBUG_INFO - IWL_UCODE_TLV_DEBUG_BASE,
IWL_DBG_TLV_TYPE_BUF_ALLOC,
IWL_DBG_TLV_TYPE_HCMD,
IWL_DBG_TLV_TYPE_REGION,
IWL_DBG_TLV_TYPE_TRIGGER,
IWL_DBG_TLV_TYPE_NUM,
};
/**
* struct iwl_dbg_tlv_ver_data - debug TLV version struct
* @min_ver: min version supported
* @max_ver: max version supported
*/
struct iwl_dbg_tlv_ver_data {
int min_ver;
int max_ver;
};
/**
* struct iwl_dbg_tlv_timer_node - timer node struct
* @list: list of &struct iwl_dbg_tlv_timer_node
* @timer: timer
* @fwrt: &struct iwl_fw_runtime
* @tlv: TLV attach to the timer node
*/
struct iwl_dbg_tlv_timer_node {
struct list_head list;
struct timer_list timer;
struct iwl_fw_runtime *fwrt;
struct iwl_ucode_tlv *tlv;
};
static const struct iwl_dbg_tlv_ver_data
dbg_ver_table[IWL_DBG_TLV_TYPE_NUM] = {
[IWL_DBG_TLV_TYPE_DEBUG_INFO] = {.min_ver = 1, .max_ver = 1,},
[IWL_DBG_TLV_TYPE_BUF_ALLOC] = {.min_ver = 1, .max_ver = 1,},
[IWL_DBG_TLV_TYPE_HCMD] = {.min_ver = 1, .max_ver = 1,},
[IWL_DBG_TLV_TYPE_REGION] = {.min_ver = 1, .max_ver = 1,},
[IWL_DBG_TLV_TYPE_TRIGGER] = {.min_ver = 1, .max_ver = 1,},
};
static int iwl_dbg_tlv_add(struct iwl_ucode_tlv *tlv, struct list_head *list)
{
u32 len = le32_to_cpu(tlv->length);
struct iwl_dbg_tlv_node *node;
node = kzalloc(sizeof(*node) + len, GFP_KERNEL);
if (!node)
return -ENOMEM;
memcpy(&node->tlv, tlv, sizeof(node->tlv) + len);
list_add_tail(&node->list, list);
return 0;
}
static bool iwl_dbg_tlv_ver_support(struct iwl_ucode_tlv *tlv)
{
struct iwl_fw_ini_header *hdr = (void *)&tlv->data[0];
u32 type = le32_to_cpu(tlv->type);
u32 tlv_idx = type - IWL_UCODE_TLV_DEBUG_BASE;
u32 ver = le32_to_cpu(hdr->version);
if (ver < dbg_ver_table[tlv_idx].min_ver ||
ver > dbg_ver_table[tlv_idx].max_ver)
return false;
return true;
}
static int iwl_dbg_tlv_alloc_debug_info(struct iwl_trans *trans,
struct iwl_ucode_tlv *tlv)
{
struct iwl_fw_ini_debug_info_tlv *debug_info = (void *)tlv->data;
if (le32_to_cpu(tlv->length) != sizeof(*debug_info))
return -EINVAL;
IWL_DEBUG_FW(trans, "WRT: Loading debug cfg: %s\n",
debug_info->debug_cfg_name);
return iwl_dbg_tlv_add(tlv, &trans->dbg.debug_info_tlv_list);
}
static int iwl_dbg_tlv_alloc_buf_alloc(struct iwl_trans *trans,
struct iwl_ucode_tlv *tlv)
{
struct iwl_fw_ini_allocation_tlv *alloc = (void *)tlv->data;
u32 buf_location;
u32 alloc_id;
if (le32_to_cpu(tlv->length) != sizeof(*alloc))
return -EINVAL;
buf_location = le32_to_cpu(alloc->buf_location);
alloc_id = le32_to_cpu(alloc->alloc_id);
if (buf_location == IWL_FW_INI_LOCATION_INVALID ||
buf_location >= IWL_FW_INI_LOCATION_NUM)
goto err;
if (alloc_id == IWL_FW_INI_ALLOCATION_INVALID ||
alloc_id >= IWL_FW_INI_ALLOCATION_NUM)
goto err;
if (buf_location == IWL_FW_INI_LOCATION_NPK_PATH &&
alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1)
goto err;
if (buf_location == IWL_FW_INI_LOCATION_SRAM_PATH &&
alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1 &&
alloc_id != IWL_FW_INI_ALLOCATION_ID_INTERNAL)
goto err;
trans->dbg.fw_mon_cfg[alloc_id] = *alloc;
return 0;
err:
IWL_ERR(trans,
"WRT: Invalid allocation id %u and/or location id %u for allocation TLV\n",
alloc_id, buf_location);
return -EINVAL;
}
static int iwl_dbg_tlv_alloc_hcmd(struct iwl_trans *trans,
struct iwl_ucode_tlv *tlv)
{
struct iwl_fw_ini_hcmd_tlv *hcmd = (void *)tlv->data;
u32 tp = le32_to_cpu(hcmd->time_point);
if (le32_to_cpu(tlv->length) <= sizeof(*hcmd))
return -EINVAL;
/* Host commands can not be sent in early time point since the FW
* is not ready
*/
if (tp == IWL_FW_INI_TIME_POINT_INVALID ||
tp >= IWL_FW_INI_TIME_POINT_NUM ||
tp == IWL_FW_INI_TIME_POINT_EARLY) {
IWL_ERR(trans,
"WRT: Invalid time point %u for host command TLV\n",
tp);
return -EINVAL;
}
return iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].hcmd_list);
}
static int iwl_dbg_tlv_alloc_region(struct iwl_trans *trans,
struct iwl_ucode_tlv *tlv)
{
struct iwl_fw_ini_region_tlv *reg = (void *)tlv->data;
struct iwl_ucode_tlv **active_reg;
u32 id = le32_to_cpu(reg->id);
u32 type = le32_to_cpu(reg->type);
u32 tlv_len = sizeof(*tlv) + le32_to_cpu(tlv->length);
if (le32_to_cpu(tlv->length) < sizeof(*reg))
return -EINVAL;
/* For safe using a string from FW make sure we have a
* null terminator
*/
reg->name[IWL_FW_INI_MAX_NAME - 1] = 0;
IWL_DEBUG_FW(trans, "WRT: parsing region: %s\n", reg->name);
if (id >= IWL_FW_INI_MAX_REGION_ID) {
IWL_ERR(trans, "WRT: Invalid region id %u\n", id);
return -EINVAL;
}
if (type <= IWL_FW_INI_REGION_INVALID ||
type >= IWL_FW_INI_REGION_NUM) {
IWL_ERR(trans, "WRT: Invalid region type %u\n", type);
return -EINVAL;
}
if (type == IWL_FW_INI_REGION_PCI_IOSF_CONFIG &&
!trans->ops->read_config32) {
IWL_ERR(trans, "WRT: Unsupported region type %u\n", type);
return -EOPNOTSUPP;
}
active_reg = &trans->dbg.active_regions[id];
if (*active_reg) {
IWL_WARN(trans, "WRT: Overriding region id %u\n", id);
kfree(*active_reg);
}
*active_reg = kmemdup(tlv, tlv_len, GFP_KERNEL);
if (!*active_reg)
return -ENOMEM;
IWL_DEBUG_FW(trans, "WRT: Enabling region id %u type %u\n", id, type);
return 0;
}
static int iwl_dbg_tlv_alloc_trigger(struct iwl_trans *trans,
struct iwl_ucode_tlv *tlv)
{
struct iwl_fw_ini_trigger_tlv *trig = (void *)tlv->data;
u32 tp = le32_to_cpu(trig->time_point);
struct iwl_ucode_tlv *dup = NULL;
int ret;
if (le32_to_cpu(tlv->length) < sizeof(*trig))
return -EINVAL;
if (tp <= IWL_FW_INI_TIME_POINT_INVALID ||
tp >= IWL_FW_INI_TIME_POINT_NUM) {
IWL_ERR(trans,
"WRT: Invalid time point %u for trigger TLV\n",
tp);
return -EINVAL;
}
if (!le32_to_cpu(trig->occurrences)) {
dup = kmemdup(tlv, sizeof(*tlv) + le32_to_cpu(tlv->length),
GFP_KERNEL);
if (!dup)
return -ENOMEM;
trig = (void *)dup->data;
trig->occurrences = cpu_to_le32(-1);
tlv = dup;
}
ret = iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].trig_list);
kfree(dup);
return ret;
}
static int (*dbg_tlv_alloc[])(struct iwl_trans *trans,
struct iwl_ucode_tlv *tlv) = {
[IWL_DBG_TLV_TYPE_DEBUG_INFO] = iwl_dbg_tlv_alloc_debug_info,
[IWL_DBG_TLV_TYPE_BUF_ALLOC] = iwl_dbg_tlv_alloc_buf_alloc,
[IWL_DBG_TLV_TYPE_HCMD] = iwl_dbg_tlv_alloc_hcmd,
[IWL_DBG_TLV_TYPE_REGION] = iwl_dbg_tlv_alloc_region,
[IWL_DBG_TLV_TYPE_TRIGGER] = iwl_dbg_tlv_alloc_trigger,
};
void iwl_dbg_tlv_alloc(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
bool ext)
{
struct iwl_fw_ini_header *hdr = (void *)&tlv->data[0];
u32 type = le32_to_cpu(tlv->type);
u32 tlv_idx = type - IWL_UCODE_TLV_DEBUG_BASE;
u32 domain = le32_to_cpu(hdr->domain);
enum iwl_ini_cfg_state *cfg_state = ext ?
&trans->dbg.external_ini_cfg : &trans->dbg.internal_ini_cfg;
int ret;
if (domain != IWL_FW_INI_DOMAIN_ALWAYS_ON &&
!(domain & trans->dbg.domains_bitmap)) {
IWL_DEBUG_FW(trans,
"WRT: Skipping TLV with disabled domain 0x%0x (0x%0x)\n",
domain, trans->dbg.domains_bitmap);
return;
}
if (tlv_idx >= ARRAY_SIZE(dbg_tlv_alloc) || !dbg_tlv_alloc[tlv_idx]) {
IWL_ERR(trans, "WRT: Unsupported TLV type 0x%x\n", type);
goto out_err;
}
if (!iwl_dbg_tlv_ver_support(tlv)) {
IWL_ERR(trans, "WRT: Unsupported TLV 0x%x version %u\n", type,
le32_to_cpu(hdr->version));
goto out_err;
}
ret = dbg_tlv_alloc[tlv_idx](trans, tlv);
if (ret) {
IWL_ERR(trans,
"WRT: Failed to allocate TLV 0x%x, ret %d, (ext=%d)\n",
type, ret, ext);
goto out_err;
}
if (*cfg_state == IWL_INI_CFG_STATE_NOT_LOADED)
*cfg_state = IWL_INI_CFG_STATE_LOADED;
return;
out_err:
*cfg_state = IWL_INI_CFG_STATE_CORRUPTED;
}
void iwl_dbg_tlv_del_timers(struct iwl_trans *trans)
{
struct list_head *timer_list = &trans->dbg.periodic_trig_list;
struct iwl_dbg_tlv_timer_node *node, *tmp;
list_for_each_entry_safe(node, tmp, timer_list, list) {
del_timer(&node->timer);
list_del(&node->list);
kfree(node);
}
}
IWL_EXPORT_SYMBOL(iwl_dbg_tlv_del_timers);
static void iwl_dbg_tlv_fragments_free(struct iwl_trans *trans,
enum iwl_fw_ini_allocation_id alloc_id)
{
struct iwl_fw_mon *fw_mon;
int i;
if (alloc_id <= IWL_FW_INI_ALLOCATION_INVALID ||
alloc_id >= IWL_FW_INI_ALLOCATION_NUM)
return;
fw_mon = &trans->dbg.fw_mon_ini[alloc_id];
for (i = 0; i < fw_mon->num_frags; i++) {
struct iwl_dram_data *frag = &fw_mon->frags[i];
dma_free_coherent(trans->dev, frag->size, frag->block,
frag->physical);
frag->physical = 0;
frag->block = NULL;
frag->size = 0;
}
kfree(fw_mon->frags);
fw_mon->frags = NULL;
fw_mon->num_frags = 0;
}
void iwl_dbg_tlv_free(struct iwl_trans *trans)
{
struct iwl_dbg_tlv_node *tlv_node, *tlv_node_tmp;
int i;
iwl_dbg_tlv_del_timers(trans);
for (i = 0; i < ARRAY_SIZE(trans->dbg.active_regions); i++) {
struct iwl_ucode_tlv **active_reg =
&trans->dbg.active_regions[i];
kfree(*active_reg);
*active_reg = NULL;
}
list_for_each_entry_safe(tlv_node, tlv_node_tmp,
&trans->dbg.debug_info_tlv_list, list) {
list_del(&tlv_node->list);
kfree(tlv_node);
}
for (i = 0; i < ARRAY_SIZE(trans->dbg.time_point); i++) {
struct iwl_dbg_tlv_time_point_data *tp =
&trans->dbg.time_point[i];
list_for_each_entry_safe(tlv_node, tlv_node_tmp, &tp->trig_list,
list) {
list_del(&tlv_node->list);
kfree(tlv_node);
}
list_for_each_entry_safe(tlv_node, tlv_node_tmp, &tp->hcmd_list,
list) {
list_del(&tlv_node->list);
kfree(tlv_node);
}
list_for_each_entry_safe(tlv_node, tlv_node_tmp,
&tp->active_trig_list, list) {
list_del(&tlv_node->list);
kfree(tlv_node);
}
}
for (i = 0; i < ARRAY_SIZE(trans->dbg.fw_mon_ini); i++)
iwl_dbg_tlv_fragments_free(trans, i);
}
static int iwl_dbg_tlv_parse_bin(struct iwl_trans *trans, const u8 *data,
size_t len)
{
struct iwl_ucode_tlv *tlv;
u32 tlv_len;
while (len >= sizeof(*tlv)) {
len -= sizeof(*tlv);
tlv = (void *)data;
tlv_len = le32_to_cpu(tlv->length);
if (len < tlv_len) {
IWL_ERR(trans, "invalid TLV len: %zd/%u\n",
len, tlv_len);
return -EINVAL;
}
len -= ALIGN(tlv_len, 4);
data += sizeof(*tlv) + ALIGN(tlv_len, 4);
iwl_dbg_tlv_alloc(trans, tlv, true);
}
return 0;
}
void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans)
{
const struct firmware *fw;
int res;
if (!iwlwifi_mod_params.enable_ini)
return;
res = firmware_request_nowarn(&fw, "iwl-debug-yoyo.bin", dev);
if (res)
return;
iwl_dbg_tlv_parse_bin(trans, fw->data, fw->size);
release_firmware(fw);
}
void iwl_dbg_tlv_init(struct iwl_trans *trans)
{
int i;
INIT_LIST_HEAD(&trans->dbg.debug_info_tlv_list);
INIT_LIST_HEAD(&trans->dbg.periodic_trig_list);
for (i = 0; i < ARRAY_SIZE(trans->dbg.time_point); i++) {
struct iwl_dbg_tlv_time_point_data *tp =
&trans->dbg.time_point[i];
INIT_LIST_HEAD(&tp->trig_list);
INIT_LIST_HEAD(&tp->hcmd_list);
INIT_LIST_HEAD(&tp->active_trig_list);
}
}
static int iwl_dbg_tlv_alloc_fragment(struct iwl_fw_runtime *fwrt,
struct iwl_dram_data *frag, u32 pages)
{
void *block = NULL;
dma_addr_t physical;
if (!frag || frag->size || !pages)
return -EIO;
/*
* We try to allocate as many pages as we can, starting with
* the requested amount and going down until we can allocate
* something. Because of DIV_ROUND_UP(), pages will never go
* down to 0 and stop the loop, so stop when pages reaches 1,
* which is too small anyway.
*/
while (pages > 1) {
block = dma_alloc_coherent(fwrt->dev, pages * PAGE_SIZE,
&physical,
GFP_KERNEL | __GFP_NOWARN);
if (block)
break;
IWL_WARN(fwrt, "WRT: Failed to allocate fragment size %lu\n",
pages * PAGE_SIZE);
pages = DIV_ROUND_UP(pages, 2);
}
if (!block)
return -ENOMEM;
frag->physical = physical;
frag->block = block;
frag->size = pages * PAGE_SIZE;
return pages;
}
static int iwl_dbg_tlv_alloc_fragments(struct iwl_fw_runtime *fwrt,
enum iwl_fw_ini_allocation_id alloc_id)
{
struct iwl_fw_mon *fw_mon;
struct iwl_fw_ini_allocation_tlv *fw_mon_cfg;
u32 num_frags, remain_pages, frag_pages;
int i;
if (alloc_id < IWL_FW_INI_ALLOCATION_INVALID ||
alloc_id >= IWL_FW_INI_ALLOCATION_NUM)
return -EIO;
fw_mon_cfg = &fwrt->trans->dbg.fw_mon_cfg[alloc_id];
fw_mon = &fwrt->trans->dbg.fw_mon_ini[alloc_id];
if (fw_mon->num_frags ||
fw_mon_cfg->buf_location !=
cpu_to_le32(IWL_FW_INI_LOCATION_DRAM_PATH))
return 0;
num_frags = le32_to_cpu(fw_mon_cfg->max_frags_num);
if (!fw_has_capa(&fwrt->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_DBG_BUF_ALLOC_CMD_SUPP)) {
if (alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1)
return -EIO;
num_frags = 1;
}
remain_pages = DIV_ROUND_UP(le32_to_cpu(fw_mon_cfg->req_size),
PAGE_SIZE);
num_frags = min_t(u32, num_frags, BUF_ALLOC_MAX_NUM_FRAGS);
num_frags = min_t(u32, num_frags, remain_pages);
frag_pages = DIV_ROUND_UP(remain_pages, num_frags);
fw_mon->frags = kcalloc(num_frags, sizeof(*fw_mon->frags), GFP_KERNEL);
if (!fw_mon->frags)
return -ENOMEM;
for (i = 0; i < num_frags; i++) {
int pages = min_t(u32, frag_pages, remain_pages);
IWL_DEBUG_FW(fwrt,
"WRT: Allocating DRAM buffer (alloc_id=%u, fragment=%u, size=0x%lx)\n",
alloc_id, i, pages * PAGE_SIZE);
pages = iwl_dbg_tlv_alloc_fragment(fwrt, &fw_mon->frags[i],
pages);
if (pages < 0) {
u32 alloc_size = le32_to_cpu(fw_mon_cfg->req_size) -
(remain_pages * PAGE_SIZE);
if (alloc_size < le32_to_cpu(fw_mon_cfg->min_size)) {
iwl_dbg_tlv_fragments_free(fwrt->trans,
alloc_id);
return pages;
}
break;
}
remain_pages -= pages;
fw_mon->num_frags++;
}
return 0;
}
static int iwl_dbg_tlv_apply_buffer(struct iwl_fw_runtime *fwrt,
enum iwl_fw_ini_allocation_id alloc_id)
{
struct iwl_fw_mon *fw_mon;
u32 remain_frags, num_commands;
int i, fw_mon_idx = 0;
if (!fw_has_capa(&fwrt->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_DBG_BUF_ALLOC_CMD_SUPP))
return 0;
if (alloc_id < IWL_FW_INI_ALLOCATION_INVALID ||
alloc_id >= IWL_FW_INI_ALLOCATION_NUM)
return -EIO;
if (le32_to_cpu(fwrt->trans->dbg.fw_mon_cfg[alloc_id].buf_location) !=
IWL_FW_INI_LOCATION_DRAM_PATH)
return 0;
fw_mon = &fwrt->trans->dbg.fw_mon_ini[alloc_id];
/* the first fragment of DBGC1 is given to the FW via register
* or context info
*/
if (alloc_id == IWL_FW_INI_ALLOCATION_ID_DBGC1)
fw_mon_idx++;
remain_frags = fw_mon->num_frags - fw_mon_idx;
if (!remain_frags)
return 0;
num_commands = DIV_ROUND_UP(remain_frags, BUF_ALLOC_MAX_NUM_FRAGS);
IWL_DEBUG_FW(fwrt, "WRT: Applying DRAM destination (alloc_id=%u)\n",
alloc_id);
for (i = 0; i < num_commands; i++) {
u32 num_frags = min_t(u32, remain_frags,
BUF_ALLOC_MAX_NUM_FRAGS);
struct iwl_buf_alloc_cmd data = {
.alloc_id = cpu_to_le32(alloc_id),
.num_frags = cpu_to_le32(num_frags),
.buf_location =
cpu_to_le32(IWL_FW_INI_LOCATION_DRAM_PATH),
};
struct iwl_host_cmd hcmd = {
.id = WIDE_ID(DEBUG_GROUP, BUFFER_ALLOCATION),
.data[0] = &data,
.len[0] = sizeof(data),
};
int ret, j;
for (j = 0; j < num_frags; j++) {
struct iwl_buf_alloc_frag *frag = &data.frags[j];
struct iwl_dram_data *fw_mon_frag =
&fw_mon->frags[fw_mon_idx++];
frag->addr = cpu_to_le64(fw_mon_frag->physical);
frag->size = cpu_to_le32(fw_mon_frag->size);
}
ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
if (ret)
return ret;
remain_frags -= num_frags;
}
return 0;
}
static void iwl_dbg_tlv_apply_buffers(struct iwl_fw_runtime *fwrt)
{
int ret, i;
for (i = 0; i < IWL_FW_INI_ALLOCATION_NUM; i++) {
ret = iwl_dbg_tlv_apply_buffer(fwrt, i);
if (ret)
IWL_WARN(fwrt,
"WRT: Failed to apply DRAM buffer for allocation id %d, ret=%d\n",
i, ret);
}
}
static void iwl_dbg_tlv_send_hcmds(struct iwl_fw_runtime *fwrt,
struct list_head *hcmd_list)
{
struct iwl_dbg_tlv_node *node;
list_for_each_entry(node, hcmd_list, list) {
struct iwl_fw_ini_hcmd_tlv *hcmd = (void *)node->tlv.data;
struct iwl_fw_ini_hcmd *hcmd_data = &hcmd->hcmd;
u16 hcmd_len = le32_to_cpu(node->tlv.length) - sizeof(*hcmd);
struct iwl_host_cmd cmd = {
.id = WIDE_ID(hcmd_data->group, hcmd_data->id),
.len = { hcmd_len, },
.data = { hcmd_data->data, },
};
iwl_trans_send_cmd(fwrt->trans, &cmd);
}
}
static void iwl_dbg_tlv_periodic_trig_handler(struct timer_list *t)
{
struct iwl_dbg_tlv_timer_node *timer_node =
from_timer(timer_node, t, timer);
struct iwl_fwrt_dump_data dump_data = {
.trig = (void *)timer_node->tlv->data,
};
int ret;
ret = iwl_fw_dbg_ini_collect(timer_node->fwrt, &dump_data);
if (!ret || ret == -EBUSY) {
u32 occur = le32_to_cpu(dump_data.trig->occurrences);
u32 collect_interval = le32_to_cpu(dump_data.trig->data[0]);
if (!occur)
return;
mod_timer(t, jiffies + msecs_to_jiffies(collect_interval));
}
}
static void iwl_dbg_tlv_set_periodic_trigs(struct iwl_fw_runtime *fwrt)
{
struct iwl_dbg_tlv_node *node;
struct list_head *trig_list =
&fwrt->trans->dbg.time_point[IWL_FW_INI_TIME_POINT_PERIODIC].active_trig_list;
list_for_each_entry(node, trig_list, list) {
struct iwl_fw_ini_trigger_tlv *trig = (void *)node->tlv.data;
struct iwl_dbg_tlv_timer_node *timer_node;
u32 occur = le32_to_cpu(trig->occurrences), collect_interval;
u32 min_interval = 100;
if (!occur)
continue;
/* make sure there is at least one dword of data for the
* interval value
*/
if (le32_to_cpu(node->tlv.length) <
sizeof(*trig) + sizeof(__le32)) {
IWL_ERR(fwrt,
"WRT: Invalid periodic trigger data was not given\n");
continue;
}
if (le32_to_cpu(trig->data[0]) < min_interval) {
IWL_WARN(fwrt,
"WRT: Override min interval from %u to %u msec\n",
le32_to_cpu(trig->data[0]), min_interval);
trig->data[0] = cpu_to_le32(min_interval);
}
collect_interval = le32_to_cpu(trig->data[0]);
timer_node = kzalloc(sizeof(*timer_node), GFP_KERNEL);
if (!timer_node) {
IWL_ERR(fwrt,
"WRT: Failed to allocate periodic trigger\n");
continue;
}
timer_node->fwrt = fwrt;
timer_node->tlv = &node->tlv;
timer_setup(&timer_node->timer,
iwl_dbg_tlv_periodic_trig_handler, 0);
list_add_tail(&timer_node->list,
&fwrt->trans->dbg.periodic_trig_list);
IWL_DEBUG_FW(fwrt, "WRT: Enabling periodic trigger\n");
mod_timer(&timer_node->timer,
jiffies + msecs_to_jiffies(collect_interval));
}
}
static bool is_trig_data_contained(struct iwl_ucode_tlv *new,
struct iwl_ucode_tlv *old)
{
struct iwl_fw_ini_trigger_tlv *new_trig = (void *)new->data;
struct iwl_fw_ini_trigger_tlv *old_trig = (void *)old->data;
__le32 *new_data = new_trig->data, *old_data = old_trig->data;
u32 new_dwords_num = iwl_tlv_array_len(new, new_trig, data);
u32 old_dwords_num = iwl_tlv_array_len(old, old_trig, data);
int i, j;
for (i = 0; i < new_dwords_num; i++) {
bool match = false;
for (j = 0; j < old_dwords_num; j++) {
if (new_data[i] == old_data[j]) {
match = true;
break;
}
}
if (!match)
return false;
}
return true;
}
static int iwl_dbg_tlv_override_trig_node(struct iwl_fw_runtime *fwrt,
struct iwl_ucode_tlv *trig_tlv,
struct iwl_dbg_tlv_node *node)
{
struct iwl_ucode_tlv *node_tlv = &node->tlv;
struct iwl_fw_ini_trigger_tlv *node_trig = (void *)node_tlv->data;
struct iwl_fw_ini_trigger_tlv *trig = (void *)trig_tlv->data;
u32 policy = le32_to_cpu(trig->apply_policy);
u32 size = le32_to_cpu(trig_tlv->length);
u32 trig_data_len = size - sizeof(*trig);
u32 offset = 0;
if (!(policy & IWL_FW_INI_APPLY_POLICY_OVERRIDE_DATA)) {
u32 data_len = le32_to_cpu(node_tlv->length) -
sizeof(*node_trig);
IWL_DEBUG_FW(fwrt,
"WRT: Appending trigger data (time point %u)\n",
le32_to_cpu(trig->time_point));
offset += data_len;
size += data_len;
} else {
IWL_DEBUG_FW(fwrt,
"WRT: Overriding trigger data (time point %u)\n",
le32_to_cpu(trig->time_point));
}
if (size != le32_to_cpu(node_tlv->length)) {
struct list_head *prev = node->list.prev;
struct iwl_dbg_tlv_node *tmp;
list_del(&node->list);
tmp = krealloc(node, sizeof(*node) + size, GFP_KERNEL);
if (!tmp) {
IWL_WARN(fwrt,
"WRT: No memory to override trigger (time point %u)\n",
le32_to_cpu(trig->time_point));
list_add(&node->list, prev);
return -ENOMEM;
}
list_add(&tmp->list, prev);
node_tlv = &tmp->tlv;
node_trig = (void *)node_tlv->data;
}
memcpy(node_trig->data + offset, trig->data, trig_data_len);
node_tlv->length = cpu_to_le32(size);
if (policy & IWL_FW_INI_APPLY_POLICY_OVERRIDE_CFG) {
IWL_DEBUG_FW(fwrt,
"WRT: Overriding trigger configuration (time point %u)\n",
le32_to_cpu(trig->time_point));
/* the first 11 dwords are configuration related */
memcpy(node_trig, trig, sizeof(__le32) * 11);
}
if (policy & IWL_FW_INI_APPLY_POLICY_OVERRIDE_REGIONS) {
IWL_DEBUG_FW(fwrt,
"WRT: Overriding trigger regions (time point %u)\n",
le32_to_cpu(trig->time_point));
node_trig->regions_mask = trig->regions_mask;
} else {
IWL_DEBUG_FW(fwrt,
"WRT: Appending trigger regions (time point %u)\n",
le32_to_cpu(trig->time_point));
node_trig->regions_mask |= trig->regions_mask;
}
return 0;
}
static int
iwl_dbg_tlv_add_active_trigger(struct iwl_fw_runtime *fwrt,
struct list_head *trig_list,
struct iwl_ucode_tlv *trig_tlv)
{
struct iwl_fw_ini_trigger_tlv *trig = (void *)trig_tlv->data;
struct iwl_dbg_tlv_node *node, *match = NULL;
u32 policy = le32_to_cpu(trig->apply_policy);
list_for_each_entry(node, trig_list, list) {
if (!(policy & IWL_FW_INI_APPLY_POLICY_MATCH_TIME_POINT))
break;
if (!(policy & IWL_FW_INI_APPLY_POLICY_MATCH_DATA) ||
is_trig_data_contained(trig_tlv, &node->tlv)) {
match = node;
break;
}
}
if (!match) {
IWL_DEBUG_FW(fwrt, "WRT: Enabling trigger (time point %u)\n",
le32_to_cpu(trig->time_point));
return iwl_dbg_tlv_add(trig_tlv, trig_list);
}
return iwl_dbg_tlv_override_trig_node(fwrt, trig_tlv, match);
}
static void
iwl_dbg_tlv_gen_active_trig_list(struct iwl_fw_runtime *fwrt,
struct iwl_dbg_tlv_time_point_data *tp)
{
struct iwl_dbg_tlv_node *node;
struct list_head *trig_list = &tp->trig_list;
struct list_head *active_trig_list = &tp->active_trig_list;
list_for_each_entry(node, trig_list, list) {
struct iwl_ucode_tlv *tlv = &node->tlv;
iwl_dbg_tlv_add_active_trigger(fwrt, active_trig_list, tlv);
}
}
static bool iwl_dbg_tlv_check_fw_pkt(struct iwl_fw_runtime *fwrt,
struct iwl_fwrt_dump_data *dump_data,
union iwl_dbg_tlv_tp_data *tp_data,
u32 trig_data)
{
struct iwl_rx_packet *pkt = tp_data->fw_pkt;
struct iwl_cmd_header *wanted_hdr = (void *)&trig_data;
if (pkt && (pkt->hdr.cmd == wanted_hdr->cmd &&
pkt->hdr.group_id == wanted_hdr->group_id)) {
struct iwl_rx_packet *fw_pkt =
kmemdup(pkt,
sizeof(*pkt) + iwl_rx_packet_payload_len(pkt),
GFP_ATOMIC);
if (!fw_pkt)
return false;
dump_data->fw_pkt = fw_pkt;
return true;
}
return false;
}
static int
iwl_dbg_tlv_tp_trigger(struct iwl_fw_runtime *fwrt,
struct list_head *active_trig_list,
union iwl_dbg_tlv_tp_data *tp_data,
bool (*data_check)(struct iwl_fw_runtime *fwrt,
struct iwl_fwrt_dump_data *dump_data,
union iwl_dbg_tlv_tp_data *tp_data,
u32 trig_data))
{
struct iwl_dbg_tlv_node *node;
list_for_each_entry(node, active_trig_list, list) {
struct iwl_fwrt_dump_data dump_data = {
.trig = (void *)node->tlv.data,
};
u32 num_data = iwl_tlv_array_len(&node->tlv, dump_data.trig,
data);
int ret, i;
if (!num_data) {
ret = iwl_fw_dbg_ini_collect(fwrt, &dump_data);
if (ret)
return ret;
}
for (i = 0; i < num_data; i++) {
if (!data_check ||
data_check(fwrt, &dump_data, tp_data,
le32_to_cpu(dump_data.trig->data[i]))) {
ret = iwl_fw_dbg_ini_collect(fwrt, &dump_data);
if (ret)
return ret;
break;
}
}
}
return 0;
}
static void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt)
{
enum iwl_fw_ini_buffer_location *ini_dest = &fwrt->trans->dbg.ini_dest;
int ret, i;
if (*ini_dest != IWL_FW_INI_LOCATION_INVALID)
return;
IWL_DEBUG_FW(fwrt,
"WRT: Generating active triggers list, domain 0x%x\n",
fwrt->trans->dbg.domains_bitmap);
for (i = 0; i < ARRAY_SIZE(fwrt->trans->dbg.time_point); i++) {
struct iwl_dbg_tlv_time_point_data *tp =
&fwrt->trans->dbg.time_point[i];
iwl_dbg_tlv_gen_active_trig_list(fwrt, tp);
}
*ini_dest = IWL_FW_INI_LOCATION_INVALID;
for (i = 0; i < IWL_FW_INI_ALLOCATION_NUM; i++) {
struct iwl_fw_ini_allocation_tlv *fw_mon_cfg =
&fwrt->trans->dbg.fw_mon_cfg[i];
u32 dest = le32_to_cpu(fw_mon_cfg->buf_location);
if (dest == IWL_FW_INI_LOCATION_INVALID)
continue;
if (*ini_dest == IWL_FW_INI_LOCATION_INVALID)
*ini_dest = dest;
if (dest != *ini_dest)
continue;
ret = iwl_dbg_tlv_alloc_fragments(fwrt, i);
if (ret)
IWL_WARN(fwrt,
"WRT: Failed to allocate DRAM buffer for allocation id %d, ret=%d\n",
i, ret);
}
}
void iwl_dbg_tlv_time_point(struct iwl_fw_runtime *fwrt,
enum iwl_fw_ini_time_point tp_id,
union iwl_dbg_tlv_tp_data *tp_data)
{
struct list_head *hcmd_list, *trig_list;
if (!iwl_trans_dbg_ini_valid(fwrt->trans) ||
tp_id == IWL_FW_INI_TIME_POINT_INVALID ||
tp_id >= IWL_FW_INI_TIME_POINT_NUM)
return;
hcmd_list = &fwrt->trans->dbg.time_point[tp_id].hcmd_list;
trig_list = &fwrt->trans->dbg.time_point[tp_id].active_trig_list;
switch (tp_id) {
case IWL_FW_INI_TIME_POINT_EARLY:
iwl_dbg_tlv_init_cfg(fwrt);
iwl_dbg_tlv_tp_trigger(fwrt, trig_list, tp_data, NULL);
break;
case IWL_FW_INI_TIME_POINT_AFTER_ALIVE:
iwl_dbg_tlv_apply_buffers(fwrt);
iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list);
iwl_dbg_tlv_tp_trigger(fwrt, trig_list, tp_data, NULL);
break;
case IWL_FW_INI_TIME_POINT_PERIODIC:
iwl_dbg_tlv_set_periodic_trigs(fwrt);
iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list);
break;
case IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF:
case IWL_FW_INI_TIME_POINT_MISSED_BEACONS:
case IWL_FW_INI_TIME_POINT_FW_DHC_NOTIFICATION:
iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list);
iwl_dbg_tlv_tp_trigger(fwrt, trig_list, tp_data,
iwl_dbg_tlv_check_fw_pkt);
break;
default:
iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list);
iwl_dbg_tlv_tp_trigger(fwrt, trig_list, tp_data, NULL);
break;
}
}
IWL_EXPORT_SYMBOL(iwl_dbg_tlv_time_point);