From patchwork Wed Mar 9 17:45:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emmanuel Grumbach X-Patchwork-Id: 8548231 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 21B149F46A for ; Wed, 9 Mar 2016 17:46:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2496120268 for ; Wed, 9 Mar 2016 17:46:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 05737200CF for ; Wed, 9 Mar 2016 17:46:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933627AbcCIRqQ (ORCPT ); Wed, 9 Mar 2016 12:46:16 -0500 Received: from mga03.intel.com ([134.134.136.65]:62255 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933610AbcCIRqM (ORCPT ); Wed, 9 Mar 2016 12:46:12 -0500 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga103.jf.intel.com with ESMTP; 09 Mar 2016 09:46:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,311,1455004800"; d="scan'208";a="761073043" Received: from chrisfix-mobl2.ger.corp.intel.com (HELO egrumbacBOX.ger.corp.intel.com) ([10.252.2.84]) by orsmga003.jf.intel.com with ESMTP; 09 Mar 2016 09:46:09 -0800 From: Emmanuel Grumbach To: linux-wireless@vger.kernel.org Cc: Chaya Rachel Ivgi , Emmanuel Grumbach Subject: [PATCH 09/21] iwlwifi: mvm: add ctdp operations to debugfs Date: Wed, 9 Mar 2016 19:45:38 +0200 Message-Id: <1457545550-30677-9-git-send-email-emmanuel.grumbach@intel.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <0BA3FCBA62E2DC44AF3030971E174FB32EA64B1D@hasmsx107.ger.corp.intel.com> References: <0BA3FCBA62E2DC44AF3030971E174FB32EA64B1D@hasmsx107.ger.corp.intel.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Chaya Rachel Ivgi Add debugfs entries to get the ctdp budget average and to stop ctdp. Signed-off-by: Chaya Rachel Ivgi Signed-off-by: Emmanuel Grumbach --- 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) {