From: Chaya Rachel Ivgi <[email protected]> Add debugfs entries to get the ctdp budget average and to stop ctdp.
Signed-off-by: Chaya Rachel Ivgi <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]> --- drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 42 +++++++++++++ drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 76 +++++++++++++----------- 2 files changed, 84 insertions(+), 34 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index 56e6b0b..a43b392 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -73,6 +73,44 @@ #include "debugfs.h" #include "iwl-fw-error-dump.h" +static ssize_t iwl_dbgfs_ctdp_budget_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + char buf[16]; + int pos, budget; + + if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR) + return -EIO; + + mutex_lock(&mvm->mutex); + budget = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_REPORT, 0); + mutex_unlock(&mvm->mutex); + + if (budget < 0) + return budget; + + pos = scnprintf(buf, sizeof(buf), "%d\n", budget); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + int ret; + + if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR) + return -EIO; + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_STOP, 0); + mutex_unlock(&mvm->mutex); + + return ret ?: count; +} + static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { @@ -1493,6 +1531,8 @@ iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); /* Device wide debugfs entries */ +MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); +MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); @@ -1542,6 +1582,8 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, S_IWUSR | S_IRUSR); MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); + MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR); + MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c index 0a02e98..a396549 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c @@ -510,6 +510,48 @@ static const struct iwl_tt_params iwl_mvm_default_tt_params = { .support_tx_backoff = true, }; +int iwl_mvm_ctdp_command(struct iwl_mvm *mvm, u32 op, u32 budget) +{ + struct iwl_mvm_ctdp_cmd cmd = { + .operation = cpu_to_le32(op), + .budget = cpu_to_le32(budget), + .window_size = 0, + }; + int ret; + u32 status; + + lockdep_assert_held(&mvm->mutex); + + ret = iwl_mvm_send_cmd_pdu_status(mvm, WIDE_ID(PHY_OPS_GROUP, + CTDP_CONFIG_CMD), + sizeof(cmd), &cmd, &status); + + if (ret) { + IWL_ERR(mvm, "cTDP command failed (err=%d)\n", ret); + return ret; + } + + switch (op) { + case CTDP_CMD_OPERATION_START: + mvm->cooling_dev.cur_state = budget; + break; + case CTDP_CMD_OPERATION_REPORT: + IWL_DEBUG_TEMP(mvm, "cTDP avg energy in mWatt = %d\n", status); + /* when the function is called with CTDP_CMD_OPERATION_REPORT + * option the function should return the average budget value + * that is received from the FW. + * The budget can't be less or equal to 0, so it's possible + * to distinguish between error values and budgets. + */ + return status; + case CTDP_CMD_OPERATION_STOP: + IWL_DEBUG_TEMP(mvm, "cTDP stopped successfully\n"); + break; + } + + return 0; +} + #ifdef CONFIG_THERMAL static int compare_temps(const void *a, const void *b) { @@ -738,40 +780,6 @@ static const u32 iwl_mvm_cdev_budgets[] = { 150, /* cooling state 19 */ }; -int iwl_mvm_ctdp_command(struct iwl_mvm *mvm, u32 op, u32 budget) -{ - struct iwl_mvm_ctdp_cmd cmd = { - .operation = cpu_to_le32(op), - .budget = cpu_to_le32(budget), - .window_size = 0, - }; - int ret; - u32 status; - - lockdep_assert_held(&mvm->mutex); - - ret = iwl_mvm_send_cmd_pdu_status(mvm, WIDE_ID(PHY_OPS_GROUP, - CTDP_CONFIG_CMD), - sizeof(cmd), &cmd, &status); - - if (ret) { - IWL_ERR(mvm, "cTDP command failed (err=%d)\n", ret); - return ret; - } - - /* can happen if the registration failed */ - if (!mvm->cooling_dev.cdev) - return -EINVAL; - - if (op == CTDP_CMD_OPERATION_START) - mvm->cooling_dev.cur_state = budget; - - else if (op == CTDP_CMD_OPERATION_REPORT) - IWL_DEBUG_TEMP(mvm, "cTDP avg energy in mWatt = %d\n", status); - - return 0; -} - static int iwl_mvm_tcool_get_max_state(struct thermal_cooling_device *cdev, unsigned long *state) { -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
