From patchwork Sat Aug 28 15:13:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shayne Chen X-Patchwork-Id: 12463567 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 X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD8DFC432BE for ; Sat, 28 Aug 2021 15:16:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A484160E76 for ; Sat, 28 Aug 2021 15:16:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230088AbhH1PQz (ORCPT ); Sat, 28 Aug 2021 11:16:55 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:36728 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S229799AbhH1PQy (ORCPT ); Sat, 28 Aug 2021 11:16:54 -0400 X-UUID: fdfdcbb23f2044d4aef447119dfb8bd6-20210828 X-UUID: fdfdcbb23f2044d4aef447119dfb8bd6-20210828 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 368365835; Sat, 28 Aug 2021 23:16:02 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 28 Aug 2021 23:16:01 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 28 Aug 2021 23:16:00 +0800 From: Shayne Chen To: Felix Fietkau CC: linux-wireless , Lorenzo Bianconi , Ryder Lee , Evelyn Tsai , linux-mediatek , Shayne Chen Subject: [PATCH 2/2] mt76: mt7915: add debugfs knobs for MCU utilization Date: Sat, 28 Aug 2021 23:13:07 +0800 Message-ID: <20210828151307.25011-2-shayne.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210828151307.25011-1-shayne.chen@mediatek.com> References: <20210828151307.25011-1-shayne.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add debugfs knobs to read MCU utilization, which helps user know firmware status more easily to narrow down CPU bottleneck issues. Co-developed-by: Ryder Lee Signed-off-by: Ryder Lee Signed-off-by: Shayne Chen --- .../wireless/mediatek/mt76/mt7915/debugfs.c | 49 ++++++++++++++++++- .../net/wireless/mediatek/mt76/mt7915/mcu.c | 5 +- .../net/wireless/mediatek/mt76/mt7915/mcu.h | 2 + .../net/wireless/mediatek/mt76/mt7915/mmio.c | 3 ++ .../wireless/mediatek/mt76/mt7915/mt7915.h | 1 + .../net/wireless/mediatek/mt76/mt7915/regs.h | 17 +++++++ 6 files changed, 73 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c index 3878635..5f2feb3 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c @@ -93,6 +93,12 @@ mt7915_fw_debug_wm_set(void *data, u64 val) for (debug = DEBUG_TXCMD; debug <= DEBUG_RPT_RX; debug++) mt7915_mcu_fw_dbg_ctrl(dev, debug, !!dev->fw_debug_wm); + /* WM CPU info record control */ + mt76_clear(dev, MT_CPU_UTLZ_CTRL, BIT(0)); + mt76_wr(dev, MT_DIC_CMD_REG_CMD, BIT(2) | BIT(13) | !dev->fw_debug_wm); + mt76_wr(dev, MT_MCU_WM_CIRQ_IRQ_MASK_CLR_ADDR, BIT(5)); + mt76_wr(dev, MT_MCU_WM_CIRQ_IRQ_SOFT_ADDR, BIT(5)); + return 0; } @@ -116,7 +122,11 @@ mt7915_fw_debug_wa_set(void *data, u64 val) dev->fw_debug_wa = val ? MCU_FW_LOG_TO_HOST : 0; - return mt7915_mcu_fw_log_2_host(dev, MCU_FW_LOG_WA, dev->fw_debug_wa); + mt7915_mcu_fw_log_2_host(dev, MCU_FW_LOG_WA, dev->fw_debug_wa); + mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET), MCU_WA_PARAM_PDMA_RX, + !!dev->fw_debug_wa, 0); + + return 0; } static int @@ -132,6 +142,39 @@ mt7915_fw_debug_wa_get(void *data, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_wa, mt7915_fw_debug_wa_get, mt7915_fw_debug_wa_set, "%lld\n"); +static int +mt7915_fw_utilization_wm_show(struct seq_file *file, void *data) +{ + struct mt7915_dev *dev = file->private; + + if (dev->fw_debug_wm) { + seq_printf(file, "Busy: %u%% Peak busy: %u%%\n", + mt76_rr(dev, MT_CPU_UTLZ_BUSY_PCT), + mt76_rr(dev, MT_CPU_UTLZ_PEAK_BUSY_PCT)); + seq_printf(file, "Idle count: %u Peak idle count: %u\n", + mt76_rr(dev, MT_CPU_UTLZ_IDLE_CNT), + mt76_rr(dev, MT_CPU_UTLZ_PEAK_IDLE_CNT)); + } + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mt7915_fw_utilization_wm); + +static int +mt7915_fw_utilization_wa_show(struct seq_file *file, void *data) +{ + struct mt7915_dev *dev = file->private; + + if (dev->fw_debug_wa) + mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(QUERY), + MCU_WA_PARAM_CPU_UTILIZATION, 0, 0); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mt7915_fw_utilization_wa); + static void mt7915_ampdu_stat_read_phy(struct mt7915_phy *phy, struct seq_file *file) @@ -373,6 +416,10 @@ int mt7915_init_debugfs(struct mt7915_dev *dev) debugfs_create_file("tx_stats", 0400, dir, dev, &mt7915_tx_stats_fops); debugfs_create_file("fw_debug_wm", 0600, dir, dev, &fops_fw_debug_wm); debugfs_create_file("fw_debug_wa", 0600, dir, dev, &fops_fw_debug_wa); + debugfs_create_file("fw_utilization_wm", 0400, dir, dev, + &mt7915_fw_utilization_wm_fops); + debugfs_create_file("fw_utilization_wa", 0400, dir, dev, + &mt7915_fw_utilization_wa_fops); debugfs_create_file("implicit_txbf", 0600, dir, dev, &fops_implicit_txbf); debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern); diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index dad1858..cfa0550 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -416,8 +416,7 @@ exit: return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[qid], skb, 0); } -static void -mt7915_mcu_wa_cmd(struct mt7915_dev *dev, int cmd, u32 a1, u32 a2, u32 a3) +void mt7915_mcu_wa_cmd(struct mt7915_dev *dev, int cmd, u32 a1, u32 a2, u32 a3) { struct { __le32 args[3]; @@ -429,7 +428,7 @@ mt7915_mcu_wa_cmd(struct mt7915_dev *dev, int cmd, u32 a1, u32 a2, u32 a3) }, }; - mt76_mcu_send_msg(&dev->mt76, cmd, &req, sizeof(req), true); + mt76_mcu_send_msg(&dev->mt76, cmd, &req, sizeof(req), false); } static void diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h index 44e215d..9c10073 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h @@ -298,6 +298,8 @@ enum { }; enum { + MCU_WA_PARAM_PDMA_RX = 0x04, + MCU_WA_PARAM_CPU_UTILIZATION = 0x0b, MCU_WA_PARAM_RED = 0x0e, }; diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c index af712a9..bb55224 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c @@ -34,6 +34,9 @@ static u32 __mt7915_reg_addr(struct mt7915_dev *dev, u32 addr) u32 mapped; u32 size; } fixed_map[] = { + { 0x00400000, 0x80000, 0x10000 }, /* WF_MCU_SYSRAM */ + { 0x00410000, 0x90000, 0x10000 }, /* WF_MCU_SYSRAM (configure regs) */ + { 0x40000000, 0x70000, 0x10000 }, /* WF_UMAC_SYSRAM */ { 0x54000000, 0x02000, 0x1000 }, /* WFDMA PCIE0 MCU DMA0 */ { 0x55000000, 0x03000, 0x1000 }, /* WFDMA PCIE0 MCU DMA1 */ { 0x58000000, 0x06000, 0x1000 }, /* WFDMA PCIE1 MCU DMA0 (MEM_DMA) */ diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h index 75368ae..01c582e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h @@ -351,6 +351,7 @@ int mt7915_mcu_get_rx_rate(struct mt7915_phy *phy, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct rate_info *rate); int mt7915_mcu_rdd_cmd(struct mt7915_dev *dev, enum mt7915_rdd_cmd cmd, u8 index, u8 rx_sel, u8 val); +void mt7915_mcu_wa_cmd(struct mt7915_dev *dev, int cmd, u32 a1, u32 a2, u32 a3); int mt7915_mcu_fw_log_2_host(struct mt7915_dev *dev, u8 type, u8 ctrl); int mt7915_mcu_fw_dbg_ctrl(struct mt7915_dev *dev, u32 module, u8 level); void mt7915_mcu_rx_event(struct mt7915_dev *dev, struct sk_buff *skb); diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h index f4101cc..fdf65d8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h @@ -413,6 +413,18 @@ #define MT_HIF_REMAP_L2_BASE GENMASK(31, 12) #define MT_HIF_REMAP_BASE_L2 0x00000 +#define MT_DIC_CMD_REG_BASE 0x41f000 +#define MT_DIC_CMD_REG(ofs) (MT_DIC_CMD_REG_BASE + (ofs)) +#define MT_DIC_CMD_REG_CMD MT_DIC_CMD_REG(0x10) + +#define MT_CPU_UTLZ_BASE 0x41f030 +#define MT_CPU_UTLZ(ofs) (MT_CPU_UTLZ_BASE + (ofs)) +#define MT_CPU_UTLZ_BUSY_PCT MT_CPU_UTLZ(0x00) +#define MT_CPU_UTLZ_PEAK_BUSY_PCT MT_CPU_UTLZ(0x04) +#define MT_CPU_UTLZ_IDLE_CNT MT_CPU_UTLZ(0x08) +#define MT_CPU_UTLZ_PEAK_IDLE_CNT MT_CPU_UTLZ(0x0c) +#define MT_CPU_UTLZ_CTRL MT_CPU_UTLZ(0x1c) + #define MT_SWDEF_BASE 0x41f200 #define MT_SWDEF(ofs) (MT_SWDEF_BASE + (ofs)) #define MT_SWDEF_MODE MT_SWDEF(0x3c) @@ -458,4 +470,9 @@ #define MT_WF_PHY_RXTD12_IRPI_SW_CLR_ONLY BIT(18) #define MT_WF_PHY_RXTD12_IRPI_SW_CLR BIT(29) +#define MT_MCU_WM_CIRQ_BASE 0x89010000 +#define MT_MCU_WM_CIRQ(ofs) (MT_MCU_WM_CIRQ_BASE + (ofs)) +#define MT_MCU_WM_CIRQ_IRQ_MASK_CLR_ADDR MT_MCU_WM_CIRQ(0x80) +#define MT_MCU_WM_CIRQ_IRQ_SOFT_ADDR MT_MCU_WM_CIRQ(0xc0) + #endif