void *dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t gfp, struct dma_attrs *attrs)
{
struct dma_map_ops *ops = get_dma_ops(dev);
void *memory;
gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
if (dma_alloc_from_coherent(dev, size, dma_handle, &memory))
return memory;
if (!dev)
dev = &x86_dma_fallback_dev;
if (!is_device_dma_capable(dev))
return NULL;
if (!ops->alloc)
return NULL;
memory = ops->alloc(dev, size, dma_handle,
dma_alloc_coherent_gfp_flags(dev, gfp), attrs);
debug_dma_alloc_coherent(dev, size, *dma_handle, memory);
return memory;
}
bool arch_dma_alloc_attrs(struct device **dev)
{
if (!*dev)
*dev = &x86_dma_fallback_dev;
if (!is_device_dma_capable(*dev))
return false;
return true;
}
bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp)
{
*gfp = dma_alloc_coherent_gfp_flags(*dev, *gfp);
*gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
if (!*dev)
*dev = &x86_dma_fallback_dev;
if (!is_device_dma_capable(*dev))
return false;
return true;
}
/* send paging cmd to FW in case CPU2 has paging image */
static int iwl_send_paging_cmd(struct iwl_mvm *mvm, const struct fw_img *fw)
{
int blk_idx;
__le32 dev_phy_addr;
struct iwl_fw_paging_cmd fw_paging_cmd = {
.flags =
cpu_to_le32(PAGING_CMD_IS_SECURED |
PAGING_CMD_IS_ENABLED |
(mvm->num_of_pages_in_last_blk <<
PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
.block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),
.block_num = cpu_to_le32(mvm->num_of_paging_blk),
};
/* loop for for all paging blocks + CSS block */
for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
dev_phy_addr =
cpu_to_le32(mvm->fw_paging_db[blk_idx].fw_paging_phys >>
PAGE_2_EXP_SIZE);
fw_paging_cmd.device_phy_addr[blk_idx] = dev_phy_addr;
}
return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(FW_PAGING_BLOCK_CMD,
IWL_ALWAYS_LONG_GROUP, 0),
0, sizeof(fw_paging_cmd), &fw_paging_cmd);
}
/*
* Send paging item cmd to FW in case CPU2 has paging image
*/
static int iwl_trans_get_paging_item(struct iwl_mvm *mvm)
{
int ret;
struct iwl_fw_get_item_cmd fw_get_item_cmd = {
.item_id = cpu_to_le32(IWL_FW_ITEM_ID_PAGING),
};
struct iwl_fw_get_item_resp *item_resp;
struct iwl_host_cmd cmd = {
.id = iwl_cmd_id(FW_GET_ITEM_CMD, IWL_ALWAYS_LONG_GROUP, 0),
.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
.data = { &fw_get_item_cmd, },
};
cmd.len[0] = sizeof(struct iwl_fw_get_item_cmd);
ret = iwl_mvm_send_cmd(mvm, &cmd);
if (ret) {
IWL_ERR(mvm,
"Paging: Failed to send FW_GET_ITEM_CMD cmd (err = %d)\n",
ret);
return ret;
}
item_resp = (void *)((struct iwl_rx_packet *)cmd.resp_pkt)->data;
if (item_resp->item_id != cpu_to_le32(IWL_FW_ITEM_ID_PAGING)) {
IWL_ERR(mvm,
"Paging: got wrong item in FW_GET_ITEM_CMD resp (item_id = %u)\n",
le32_to_cpu(item_resp->item_id));
ret = -EIO;
goto exit;
}
mvm->trans->paging_download_buf = kzalloc(MAX_PAGING_IMAGE_SIZE,
GFP_KERNEL);
if (!mvm->trans->paging_download_buf) {
ret = -ENOMEM;
goto exit;
}
mvm->trans->paging_req_addr = le32_to_cpu(item_resp->item_val);
mvm->trans->paging_db = mvm->fw_paging_db;
IWL_DEBUG_FW(mvm,
"Paging: got paging request address (paging_req_addr 0x%08x)\n",
mvm->trans->paging_req_addr);
exit:
iwl_free_resp(&cmd);
return ret;
}
static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
struct iwl_rx_packet *pkt, void *data)
{
struct iwl_mvm *mvm =
container_of(notif_wait, struct iwl_mvm, notif_wait);
struct iwl_mvm_alive_data *alive_data = data;
struct mvm_alive_resp_ver1 *palive1;
struct mvm_alive_resp_ver2 *palive2;
struct mvm_alive_resp *palive;
if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive1)) {
palive1 = (void *)pkt->data;
mvm->support_umac_log = false;
mvm->error_event_table =
le32_to_cpu(palive1->error_event_table_ptr);
mvm->log_event_table =
le32_to_cpu(palive1->log_event_table_ptr);
alive_data->scd_base_addr = le32_to_cpu(palive1->scd_base_ptr);
alive_data->valid = le16_to_cpu(palive1->status) ==
IWL_ALIVE_STATUS_OK;
IWL_DEBUG_FW(mvm,
"Alive VER1 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
le16_to_cpu(palive1->status), palive1->ver_type,
palive1->ver_subtype, palive1->flags);
} else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive2)) {
palive2 = (void *)pkt->data;
mvm->error_event_table =
le32_to_cpu(palive2->error_event_table_ptr);
mvm->log_event_table =
le32_to_cpu(palive2->log_event_table_ptr);
alive_data->scd_base_addr = le32_to_cpu(palive2->scd_base_ptr);
mvm->umac_error_event_table =
le32_to_cpu(palive2->error_info_addr);
mvm->sf_space.addr = le32_to_cpu(palive2->st_fwrd_addr);
mvm->sf_space.size = le32_to_cpu(palive2->st_fwrd_size);
alive_data->valid = le16_to_cpu(palive2->status) ==
IWL_ALIVE_STATUS_OK;
if (mvm->umac_error_event_table)
mvm->support_umac_log = true;
IWL_DEBUG_FW(mvm,
"Alive VER2 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
le16_to_cpu(palive2->status), palive2->ver_type,
palive2->ver_subtype, palive2->flags);
IWL_DEBUG_FW(mvm,
"UMAC version: Major - 0x%x, Minor - 0x%x\n",
palive2->umac_major, palive2->umac_minor);
} else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) {
palive = (void *)pkt->data;
mvm->error_event_table =
le32_to_cpu(palive->error_event_table_ptr);
mvm->log_event_table =
le32_to_cpu(palive->log_event_table_ptr);
alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr);
mvm->umac_error_event_table =
le32_to_cpu(palive->error_info_addr);
mvm->sf_space.addr = le32_to_cpu(palive->st_fwrd_addr);
mvm->sf_space.size = le32_to_cpu(palive->st_fwrd_size);
alive_data->valid = le16_to_cpu(palive->status) ==
IWL_ALIVE_STATUS_OK;
if (mvm->umac_error_event_table)
mvm->support_umac_log = true;
IWL_DEBUG_FW(mvm,
"Alive VER3 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
le16_to_cpu(palive->status), palive->ver_type,
palive->ver_subtype, palive->flags);
IWL_DEBUG_FW(mvm,
"UMAC version: Major - 0x%x, Minor - 0x%x\n",
le32_to_cpu(palive->umac_major),
le32_to_cpu(palive->umac_minor));
}
return true;
}
static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait,
struct iwl_rx_packet *pkt, void *data)
{
struct iwl_phy_db *phy_db = data;
if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) {
WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);
return true;
}
WARN_ON(iwl_phy_db_set_section(phy_db, pkt, GFP_ATOMIC));
return false;
}
static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
enum iwl_ucode_type ucode_type)
{
struct iwl_notification_wait alive_wait;
struct iwl_mvm_alive_data alive_data;
const struct fw_img *fw;
int ret, i;
enum iwl_ucode_type old_type = mvm->cur_ucode;
static const u16 alive_cmd[] = { MVM_ALIVE };
struct iwl_sf_region st_fwrd_space;
if (ucode_type == IWL_UCODE_REGULAR &&
iwl_fw_dbg_conf_usniffer(mvm->fw, FW_DBG_START_FROM_ALIVE))
fw = iwl_get_ucode_image(mvm, IWL_UCODE_REGULAR_USNIFFER);
else
fw = iwl_get_ucode_image(mvm, ucode_type);
if (WARN_ON(!fw))
return -EINVAL;
mvm->cur_ucode = ucode_type;
mvm->ucode_loaded = false;
iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
alive_cmd, ARRAY_SIZE(alive_cmd),
iwl_alive_fn, &alive_data);
ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
if (ret) {
mvm->cur_ucode = old_type;
iwl_remove_notification(&mvm->notif_wait, &alive_wait);
return ret;
}
/*
* Some things may run in the background now, but we
* just wait for the ALIVE notification here.
*/
ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait,
MVM_UCODE_ALIVE_TIMEOUT);
if (ret) {
if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
IWL_ERR(mvm,
"SecBoot CPU1 Status: 0x%x, CPU2 Status: 0x%x\n",
iwl_read_prph(mvm->trans, SB_CPU_1_STATUS),
iwl_read_prph(mvm->trans, SB_CPU_2_STATUS));
mvm->cur_ucode = old_type;
return ret;
}
if (!alive_data.valid) {
IWL_ERR(mvm, "Loaded ucode is not valid!\n");
mvm->cur_ucode = old_type;
return -EIO;
}
/*
* update the sdio allocation according to the pointer we get in the
* alive notification.
*/
st_fwrd_space.addr = mvm->sf_space.addr;
st_fwrd_space.size = mvm->sf_space.size;
ret = iwl_trans_update_sf(mvm->trans, &st_fwrd_space);
if (ret) {
IWL_ERR(mvm, "Failed to update SF size. ret %d\n", ret);
return ret;
}
iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr);
/*
* configure and operate fw paging mechanism.
* driver configures the paging flow only once, CPU2 paging image
* included in the IWL_UCODE_INIT image.
*/
if (fw->paging_mem_size) {
/*
* When dma is not enabled, the driver needs to copy / write
* the downloaded / uploaded page to / from the smem.
* This gets the location of the place were the pages are
* stored.
*/
if (!is_device_dma_capable(mvm->trans->dev)) {
ret = iwl_trans_get_paging_item(mvm);
if (ret) {
IWL_ERR(mvm, "failed to get FW paging item\n");
return ret;
}
}
ret = iwl_save_fw_paging(mvm, fw);
if (ret) {
IWL_ERR(mvm, "failed to save the FW paging image\n");
return ret;
}
ret = iwl_send_paging_cmd(mvm, fw);
if (ret) {
IWL_ERR(mvm, "failed to send the paging cmd\n");
iwl_free_fw_paging(mvm);
return ret;
}
}
/*
* Note: all the queues are enabled as part of the interface
* initialization, but in firmware restart scenarios they
* could be stopped, so wake them up. In firmware restart,
* mac80211 will have the queues stopped as well until the
* reconfiguration completes. During normal startup, they
* will be empty.
*/
memset(&mvm->queue_info, 0, sizeof(mvm->queue_info));
mvm->queue_info[IWL_MVM_CMD_QUEUE].hw_queue_refcount = 1;
for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
mvm->ucode_loaded = true;
return 0;
}
static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
{
struct iwl_phy_cfg_cmd phy_cfg_cmd;
enum iwl_ucode_type ucode_type = mvm->cur_ucode;
/* Set parameters */
phy_cfg_cmd.phy_cfg = cpu_to_le32(iwl_mvm_get_phy_config(mvm));
phy_cfg_cmd.calib_control.event_trigger =
mvm->fw->default_calib[ucode_type].event_trigger;
phy_cfg_cmd.calib_control.flow_trigger =
mvm->fw->default_calib[ucode_type].flow_trigger;
IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n",
phy_cfg_cmd.phy_cfg);
return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, 0,
sizeof(phy_cfg_cmd), &phy_cfg_cmd);
}
int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
{
struct iwl_notification_wait calib_wait;
static const u16 init_complete[] = {
INIT_COMPLETE_NOTIF,
CALIB_RES_NOTIF_PHY_DB
};
int ret;
lockdep_assert_held(&mvm->mutex);
if (WARN_ON_ONCE(mvm->calibrating))
return 0;
iwl_init_notification_wait(&mvm->notif_wait,
&calib_wait,
init_complete,
ARRAY_SIZE(init_complete),
iwl_wait_phy_db_entry,
mvm->phy_db);
/* Will also start the device */
ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT);
if (ret) {
IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret);
goto error;
}
ret = iwl_send_bt_init_conf(mvm);
if (ret)
goto error;
/* Read the NVM only at driver load time, no need to do this twice */
if (read_nvm) {
/* Read nvm */
ret = iwl_nvm_init(mvm, true);
if (ret) {
IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
goto error;
}
}
/* In case we read the NVM from external file, load it to the NIC */
if (mvm->nvm_file_name)
iwl_mvm_load_nvm_to_nic(mvm);
ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
WARN_ON(ret);
/*
* abort after reading the nvm in case RF Kill is on, we will complete
* the init seq later when RF kill will switch to off
*/
if (iwl_mvm_is_radio_hw_killed(mvm)) {
IWL_DEBUG_RF_KILL(mvm,
"jump over all phy activities due to RF kill\n");
iwl_remove_notification(&mvm->notif_wait, &calib_wait);
ret = 1;
goto out;
}
mvm->calibrating = true;
/* Send TX valid antennas before triggering calibrations */
ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
if (ret)
goto error;
/*
* Send phy configurations command to init uCode
* to start the 16.0 uCode init image internal calibrations.
*/
ret = iwl_send_phy_cfg_cmd(mvm);
if (ret) {
IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n",
ret);
goto error;
}
/*
* Some things may run in the background now, but we
* just wait for the calibration complete notification.
*/
ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
MVM_UCODE_CALIB_TIMEOUT);
if (ret && iwl_mvm_is_radio_hw_killed(mvm)) {
IWL_DEBUG_RF_KILL(mvm, "RFKILL while calibrating.\n");
ret = 1;
}
goto out;
error:
iwl_remove_notification(&mvm->notif_wait, &calib_wait);
out:
mvm->calibrating = false;
if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
/* we want to debug INIT and we have no NVM - fake */
mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
sizeof(struct ieee80211_channel) +
sizeof(struct ieee80211_rate),
GFP_KERNEL);
if (!mvm->nvm_data)
return -ENOMEM;
mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
mvm->nvm_data->bands[0].n_channels = 1;
mvm->nvm_data->bands[0].n_bitrates = 1;
mvm->nvm_data->bands[0].bitrates =
(void *)mvm->nvm_data->channels + 1;
mvm->nvm_data->bands[0].bitrates->hw_value = 10;
}
return ret;
}
static void iwl_mvm_get_shared_mem_conf(struct iwl_mvm *mvm)
{
struct iwl_host_cmd cmd = {
.id = SHARED_MEM_CFG,
.flags = CMD_WANT_SKB,
.data = { NULL, },
.len = { 0, },
};
struct iwl_rx_packet *pkt;
struct iwl_shared_mem_cfg *mem_cfg;
u32 i;
lockdep_assert_held(&mvm->mutex);
if (WARN_ON(iwl_mvm_send_cmd(mvm, &cmd)))
return;
pkt = cmd.resp_pkt;
mem_cfg = (void *)pkt->data;
mvm->shared_mem_cfg.shared_mem_addr =
le32_to_cpu(mem_cfg->shared_mem_addr);
mvm->shared_mem_cfg.shared_mem_size =
le32_to_cpu(mem_cfg->shared_mem_size);
mvm->shared_mem_cfg.sample_buff_addr =
le32_to_cpu(mem_cfg->sample_buff_addr);
mvm->shared_mem_cfg.sample_buff_size =
le32_to_cpu(mem_cfg->sample_buff_size);
mvm->shared_mem_cfg.txfifo_addr = le32_to_cpu(mem_cfg->txfifo_addr);
for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++)
mvm->shared_mem_cfg.txfifo_size[i] =
le32_to_cpu(mem_cfg->txfifo_size[i]);
for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++)
mvm->shared_mem_cfg.rxfifo_size[i] =
le32_to_cpu(mem_cfg->rxfifo_size[i]);
mvm->shared_mem_cfg.page_buff_addr =
le32_to_cpu(mem_cfg->page_buff_addr);
mvm->shared_mem_cfg.page_buff_size =
le32_to_cpu(mem_cfg->page_buff_size);
IWL_DEBUG_INFO(mvm, "SHARED MEM CFG: got memory offsets/sizes\n");
iwl_free_resp(&cmd);
}
static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
const struct fw_img *image)
{
struct page *block;
dma_addr_t phys = 0;
int blk_idx = 0;
int order, num_of_pages;
int dma_enabled;
if (mvm->fw_paging_db[0].fw_paging_block)
return 0;
dma_enabled = is_device_dma_capable(mvm->trans->dev);
/* ensure BLOCK_2_EXP_SIZE is power of 2 of PAGING_BLOCK_SIZE */
BUILD_BUG_ON(BIT(BLOCK_2_EXP_SIZE) != PAGING_BLOCK_SIZE);
num_of_pages = image->paging_mem_size / FW_PAGING_SIZE;
mvm->num_of_paging_blk = ((num_of_pages - 1) /
NUM_OF_PAGE_PER_GROUP) + 1;
mvm->num_of_pages_in_last_blk =
num_of_pages -
NUM_OF_PAGE_PER_GROUP * (mvm->num_of_paging_blk - 1);
IWL_DEBUG_FW(mvm,
"Paging: allocating mem for %d paging blocks, each block holds 8 pages, last block holds %d pages\n",
mvm->num_of_paging_blk,
mvm->num_of_pages_in_last_blk);
/* allocate block of 4Kbytes for paging CSS */
order = get_order(FW_PAGING_SIZE);
block = alloc_pages(GFP_KERNEL, order);
if (!block) {
/* free all the previous pages since we failed */
iwl_free_fw_paging(mvm);
return -ENOMEM;
}
mvm->fw_paging_db[blk_idx].fw_paging_block = block;
mvm->fw_paging_db[blk_idx].fw_paging_size = FW_PAGING_SIZE;
if (dma_enabled) {
phys = dma_map_page(mvm->trans->dev, block, 0,
PAGE_SIZE << order, DMA_BIDIRECTIONAL);
if (dma_mapping_error(mvm->trans->dev, phys)) {
/*
* free the previous pages and the current one since
* we failed to map_page.
*/
iwl_free_fw_paging(mvm);
return -ENOMEM;
}
mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
} else {
mvm->fw_paging_db[blk_idx].fw_paging_phys = PAGING_ADDR_SIG |
blk_idx << BLOCK_2_EXP_SIZE;
}
IWL_DEBUG_FW(mvm,
"Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",
order);
/*
* allocate blocks in dram.
* since that CSS allocated in fw_paging_db[0] loop start from index 1
*/
for (blk_idx = 1; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
/* allocate block of PAGING_BLOCK_SIZE (32K) */
order = get_order(PAGING_BLOCK_SIZE);
block = alloc_pages(GFP_KERNEL, order);
if (!block) {
/* free all the previous pages since we failed */
iwl_free_fw_paging(mvm);
return -ENOMEM;
}
mvm->fw_paging_db[blk_idx].fw_paging_block = block;
mvm->fw_paging_db[blk_idx].fw_paging_size = PAGING_BLOCK_SIZE;
if (dma_enabled) {
phys = dma_map_page(mvm->trans->dev, block, 0,
PAGE_SIZE << order,
DMA_BIDIRECTIONAL);
if (dma_mapping_error(mvm->trans->dev, phys)) {
/*
* free the previous pages and the current one
* since we failed to map_page.
*/
iwl_free_fw_paging(mvm);
return -ENOMEM;
}
mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
} else {
mvm->fw_paging_db[blk_idx].fw_paging_phys =
PAGING_ADDR_SIG |
blk_idx << BLOCK_2_EXP_SIZE;
}
IWL_DEBUG_FW(mvm,
"Paging: allocated 32K bytes (order %d) for firmware paging.\n",
order);
}
return 0;
}
