From patchwork Mon Oct 23 15:38:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shayne Chen X-Patchwork-Id: 13433060 X-Patchwork-Delegate: nbd@nbd.name Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BCEEDC001E0 for ; Mon, 23 Oct 2023 15:42:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231871AbjJWPmV (ORCPT ); Mon, 23 Oct 2023 11:42:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231147AbjJWPmN (ORCPT ); Mon, 23 Oct 2023 11:42:13 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF73210A for ; Mon, 23 Oct 2023 08:42:08 -0700 (PDT) X-UUID: b43f0bee71ba11eea33bb35ae8d461a2-20231023 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=nbbJzjCUWbQxubs9OMtOWWmlA3+xOUYS/DRjRy0p08g=; b=T+23oUgsdzF0YAAAspm+VtHYiuTUnD/ISPRBH5qpDkYFdw7kZmAPSMn1pCTcBVkZi6DIWtGEDUHwt6ORrz5UHtW5j54yf7aGzeZWSi4YekJjd8ByTiTZaGUkYrxOoIwq8GdrpOfds56EPE5xiHMTuXKWF8cW500/IyXrMshNccQ=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.32,REQID:2210efb5-0081-42ad-9a4b-fe729bcef7c9,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:5f78ec9,CLOUDID:cf95abfb-4a48-46e2-b946-12f04f20af8c,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR: NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: b43f0bee71ba11eea33bb35ae8d461a2-20231023 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 462291391; Mon, 23 Oct 2023 23:41:59 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 23 Oct 2023 23:41:58 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 23 Oct 2023 23:41:58 +0800 From: Shayne Chen To: Felix Fietkau CC: linux-wireless , Lorenzo Bianconi , Ryder Lee , Evelyn Tsai , Bo Jiao , linux-mediatek , Howard Hsu , Shayne Chen Subject: [PATCH 03/11] wifi: mt76: connac: add thermal protection support for mt7996 Date: Mon, 23 Oct 2023 23:38:46 +0800 Message-ID: <20231023153854.10708-3-shayne.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231023153854.10708-1-shayne.chen@mediatek.com> References: <20231023153854.10708-1-shayne.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Howard Hsu Implement thermal protection commands and support Linux cooling device control for mt7996 chipsets. Signed-off-by: Howard Hsu Signed-off-by: Shayne Chen --- .../wireless/mediatek/mt76/mt76_connac_mcu.h | 1 + .../net/wireless/mediatek/mt76/mt7996/init.c | 102 +++++++++++++++++ .../net/wireless/mediatek/mt76/mt7996/main.c | 8 ++ .../net/wireless/mediatek/mt76/mt7996/mcu.c | 104 ++++++++++++++++++ .../net/wireless/mediatek/mt76/mt7996/mcu.h | 44 ++++++++ .../wireless/mediatek/mt76/mt7996/mt7996.h | 15 +++ 6 files changed, 274 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h index 97822f7d46cc..1d8680b153a7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h @@ -1021,6 +1021,7 @@ enum { MCU_UNI_EVENT_RDD_REPORT = 0x11, MCU_UNI_EVENT_ROC = 0x27, MCU_UNI_EVENT_TX_DONE = 0x2d, + MCU_UNI_EVENT_THERMAL = 0x35, MCU_UNI_EVENT_NIC_CAPAB = 0x43, MCU_UNI_EVENT_WED_RRO = 0x57, MCU_UNI_EVENT_PER_STA_INFO = 0x6d, diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c index 5af85ddfdc36..02b47b299ea8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c @@ -43,6 +43,97 @@ static const struct ieee80211_iface_combination if_comb[] = { } }; +static int +mt7996_thermal_get_max_throttle_state(struct thermal_cooling_device *cdev, + unsigned long *state) +{ + *state = MT7996_CDEV_THROTTLE_MAX; + + return 0; +} + +static int +mt7996_thermal_get_cur_throttle_state(struct thermal_cooling_device *cdev, + unsigned long *state) +{ + struct mt7996_phy *phy = cdev->devdata; + + *state = phy->cdev_state; + + return 0; +} + +static int +mt7996_thermal_set_cur_throttle_state(struct thermal_cooling_device *cdev, + unsigned long state) +{ + struct mt7996_phy *phy = cdev->devdata; + u8 throttling = MT7996_THERMAL_THROTTLE_MAX - state; + int ret; + + if (state > MT7996_CDEV_THROTTLE_MAX) { + dev_err(phy->dev->mt76.dev, + "please specify a valid throttling state\n"); + return -EINVAL; + } + + if (state == phy->cdev_state) + return 0; + + /* cooling_device convention: 0 = no cooling, more = more cooling + * mcu convention: 1 = max cooling, more = less cooling + */ + ret = mt7996_mcu_set_thermal_throttling(phy, throttling); + if (ret) + return ret; + + phy->cdev_state = state; + + return 0; +} + +static const struct thermal_cooling_device_ops mt7996_thermal_ops = { + .get_max_state = mt7996_thermal_get_max_throttle_state, + .get_cur_state = mt7996_thermal_get_cur_throttle_state, + .set_cur_state = mt7996_thermal_set_cur_throttle_state, +}; + +static void mt7996_unregister_thermal(struct mt7996_phy *phy) +{ + struct wiphy *wiphy = phy->mt76->hw->wiphy; + + if (!phy->cdev) + return; + + sysfs_remove_link(&wiphy->dev.kobj, "cooling_device"); + thermal_cooling_device_unregister(phy->cdev); +} + +static int mt7996_thermal_init(struct mt7996_phy *phy) +{ + struct wiphy *wiphy = phy->mt76->hw->wiphy; + struct thermal_cooling_device *cdev; + const char *name; + + name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7996_%s", + wiphy_name(wiphy)); + + cdev = thermal_cooling_device_register(name, phy, &mt7996_thermal_ops); + if (!IS_ERR(cdev)) { + if (sysfs_create_link(&wiphy->dev.kobj, &cdev->device.kobj, + "cooling_device") < 0) + thermal_cooling_device_unregister(cdev); + else + phy->cdev = cdev; + } + + /* initialize critical/maximum high temperature */ + phy->throttle_temp[MT7996_CRIT_TEMP_IDX] = MT7996_CRIT_TEMP; + phy->throttle_temp[MT7996_MAX_TEMP_IDX] = MT7996_MAX_TEMP; + + return 0; +} + static void mt7996_led_set_config(struct led_classdev *led_cdev, u8 delay_on, u8 delay_off) { @@ -429,6 +520,10 @@ static int mt7996_register_phy(struct mt7996_dev *dev, struct mt7996_phy *phy, if (ret) goto error; + ret = mt7996_thermal_init(phy); + if (ret) + goto error; + ret = mt7996_init_debugfs(phy); if (ret) goto error; @@ -456,6 +551,8 @@ mt7996_unregister_phy(struct mt7996_phy *phy, enum mt76_band_id band) if (!phy) return; + mt7996_unregister_thermal(phy); + mphy = phy->dev->mt76.phys[band]; mt76_unregister_phy(mphy); ieee80211_free_hw(mphy->hw); @@ -1130,6 +1227,10 @@ int mt7996_register_device(struct mt7996_dev *dev) if (ret) return ret; + ret = mt7996_thermal_init(&dev->phy); + if (ret) + return ret; + ieee80211_queue_work(mt76_hw(dev), &dev->init_work); ret = mt7996_register_phy(dev, mt7996_phy2(dev), MT_BAND1); @@ -1154,6 +1255,7 @@ void mt7996_unregister_device(struct mt7996_dev *dev) cancel_work_sync(&dev->wed_rro.work); mt7996_unregister_phy(mt7996_phy3(dev), MT_BAND2); mt7996_unregister_phy(mt7996_phy2(dev), MT_BAND1); + mt7996_unregister_thermal(&dev->phy); mt7996_coredump_unregister(dev); mt76_unregister_device(&dev->mt76); mt7996_wed_rro_free(dev); diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c index f074616c7007..33a9d50d3366 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c @@ -51,6 +51,14 @@ int mt7996_run(struct ieee80211_hw *hw) if (ret) goto out; + ret = mt7996_mcu_set_thermal_throttling(phy, MT7996_THERMAL_THROTTLE_MAX); + if (ret) + goto out; + + ret = mt7996_mcu_set_thermal_protect(phy, true); + if (ret) + goto out; + set_bit(MT76_STATE_RUNNING, &phy->mt76->state); ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index e379ac4cc5d3..34e83795c76b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -497,6 +497,34 @@ mt7996_mcu_rx_all_sta_info_event(struct mt7996_dev *dev, struct sk_buff *skb) } } +static void +mt7996_mcu_rx_thermal_notify(struct mt7996_dev *dev, struct sk_buff *skb) +{ +#define THERMAL_NOTIFY_TAG 0x4 +#define THERMAL_NOTIFY 0x2 + struct mt76_phy *mphy = &dev->mt76.phy; + struct mt7996_mcu_thermal_notify *n; + struct mt7996_phy *phy; + + n = (struct mt7996_mcu_thermal_notify *)skb->data; + + if (le16_to_cpu(n->tag) != THERMAL_NOTIFY_TAG) + return; + + if (n->event_id != THERMAL_NOTIFY) + return; + + if (n->band_idx > MT_BAND2) + return; + + mphy = dev->mt76.phys[n->band_idx]; + if (!mphy) + return; + + phy = (struct mt7996_phy *)mphy->priv; + phy->throttle_state = n->duty_percent; +} + static void mt7996_mcu_rx_ext_event(struct mt7996_dev *dev, struct sk_buff *skb) { @@ -520,6 +548,9 @@ mt7996_mcu_rx_unsolicited_event(struct mt7996_dev *dev, struct sk_buff *skb) case MCU_EVENT_EXT: mt7996_mcu_rx_ext_event(dev, skb); break; + case MCU_UNI_EVENT_THERMAL: + mt7996_mcu_rx_thermal_notify(dev, skb); + break; default: break; } @@ -3571,6 +3602,79 @@ int mt7996_mcu_get_chan_mib_info(struct mt7996_phy *phy, bool chan_switch) return 0; } +int mt7996_mcu_set_thermal_throttling(struct mt7996_phy *phy, u8 state) +{ + struct { + u8 _rsv[4]; + + __le16 tag; + __le16 len; + + struct mt7996_mcu_thermal_ctrl ctrl; + } __packed req = { + .tag = cpu_to_le16(UNI_CMD_THERMAL_PROTECT_DUTY_CONFIG), + .len = cpu_to_le16(sizeof(req) - 4), + .ctrl = { + .band_idx = phy->mt76->band_idx, + }, + }; + int level, ret; + + /* set duty cycle and level */ + for (level = 0; level < 4; level++) { + req.ctrl.duty.duty_level = level; + req.ctrl.duty.duty_cycle = state; + state /= 2; + + ret = mt76_mcu_send_msg(&phy->dev->mt76, MCU_WM_UNI_CMD(THERMAL), + &req, sizeof(req), false); + if (ret) + return ret; + } + + return 0; +} + +int mt7996_mcu_set_thermal_protect(struct mt7996_phy *phy, bool enable) +{ +#define SUSTAIN_PERIOD 10 + struct { + u8 _rsv[4]; + + __le16 tag; + __le16 len; + + struct mt7996_mcu_thermal_ctrl ctrl; + struct mt7996_mcu_thermal_enable enable; + } __packed req = { + .len = cpu_to_le16(sizeof(req) - 4 - sizeof(req.enable)), + .ctrl = { + .band_idx = phy->mt76->band_idx, + .type.protect_type = 1, + .type.trigger_type = 1, + }, + }; + int ret; + + req.tag = cpu_to_le16(UNI_CMD_THERMAL_PROTECT_DISABLE); + + ret = mt76_mcu_send_msg(&phy->dev->mt76, MCU_WM_UNI_CMD(THERMAL), + &req, sizeof(req) - sizeof(req.enable), false); + if (ret || !enable) + return ret; + + /* set high-temperature trigger threshold */ + req.tag = cpu_to_le16(UNI_CMD_THERMAL_PROTECT_ENABLE); + req.enable.restore_temp = cpu_to_le32(phy->throttle_temp[0]); + req.enable.trigger_temp = cpu_to_le32(phy->throttle_temp[1]); + req.enable.sustain_time = cpu_to_le16(SUSTAIN_PERIOD); + + req.len = cpu_to_le16(sizeof(req) - 4); + + return mt76_mcu_send_msg(&phy->dev->mt76, MCU_WM_UNI_CMD(THERMAL), + &req, sizeof(req), false); +} + int mt7996_mcu_set_ser(struct mt7996_dev *dev, u8 action, u8 val, u8 band) { struct { diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.h index e32a78d6622b..4a73850db9c0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.h @@ -30,6 +30,28 @@ struct mt7996_mcu_uni_event { __le32 status; /* 0: success, others: fail */ } __packed; +struct mt7996_mcu_thermal_ctrl { + u8 ctrl_id; + u8 band_idx; + union { + struct { + u8 protect_type; /* 1: duty admit, 2: radio off */ + u8 trigger_type; /* 0: low, 1: high */ + } __packed type; + struct { + u8 duty_level; /* level 0~3 */ + u8 duty_cycle; + } __packed duty; + }; +} __packed; + +struct mt7996_mcu_thermal_enable { + __le32 trigger_temp; + __le32 restore_temp; + __le16 sustain_time; + u8 rsv[2]; +} __packed; + struct mt7996_mcu_csa_notify { struct mt7996_mcu_rxd rxd; @@ -214,6 +236,22 @@ enum { UNI_WED_RRO_BA_SESSION_DELETE, }; +struct mt7996_mcu_thermal_notify { + struct mt7996_mcu_rxd rxd; + + u8 __rsv1[4]; + + __le16 tag; + __le16 len; + + u8 event_id; + u8 band_idx; + u8 level_idx; + u8 duty_percent; + __le32 restore_temp; + u8 __rsv2[4]; +} __packed; + enum mt7996_chan_mib_offs { UNI_MIB_OBSS_AIRTIME = 26, UNI_MIB_NON_WIFI_TIME = 27, @@ -719,6 +757,12 @@ enum{ UNI_CMD_SR_SET_SIGA = 0xd0, }; +enum { + UNI_CMD_THERMAL_PROTECT_ENABLE = 0x6, + UNI_CMD_THERMAL_PROTECT_DISABLE, + UNI_CMD_THERMAL_PROTECT_DUTY_CONFIG, +}; + enum { UNI_CMD_ACCESS_REG_BASIC = 0x0, UNI_CMD_ACCESS_RF_REG_BASIC, diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h index 6acc0ae286fa..61e0f905d902 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h @@ -50,6 +50,13 @@ #define MT7996_BASIC_RATES_TBL 11 #define MT7996_BEACON_RATES_TBL 25 +#define MT7996_THERMAL_THROTTLE_MAX 100 +#define MT7996_CDEV_THROTTLE_MAX 99 +#define MT7996_CRIT_TEMP_IDX 0 +#define MT7996_MAX_TEMP_IDX 1 +#define MT7996_CRIT_TEMP 110 +#define MT7996_MAX_TEMP 120 + #define MT7996_RRO_MAX_SESSION 1024 #define MT7996_RRO_WINDOW_MAX_LEN 1024 #define MT7996_RRO_ADDR_ELEM_LEN 128 @@ -195,6 +202,11 @@ struct mt7996_phy { struct ieee80211_vif *monitor_vif; + struct thermal_cooling_device *cdev; + u8 cdev_state; + u8 throttle_state; + u32 throttle_temp[2]; /* 0: critical high, 1: maximum */ + u32 rxfilter; u64 omac_mask; @@ -453,6 +465,9 @@ int mt7996_mcu_set_radio_en(struct mt7996_phy *phy, bool enable); int mt7996_mcu_set_rts_thresh(struct mt7996_phy *phy, u32 val); int mt7996_mcu_set_timing(struct mt7996_phy *phy, struct ieee80211_vif *vif); int mt7996_mcu_get_chan_mib_info(struct mt7996_phy *phy, bool chan_switch); +int mt7996_mcu_get_temperature(struct mt7996_phy *phy); +int mt7996_mcu_set_thermal_throttling(struct mt7996_phy *phy, u8 state); +int mt7996_mcu_set_thermal_protect(struct mt7996_phy *phy, bool enable); int mt7996_mcu_rdd_cmd(struct mt7996_dev *dev, int cmd, u8 index, u8 rx_sel, u8 val); int mt7996_mcu_rdd_background_enable(struct mt7996_phy *phy,