From patchwork Mon May 17 13:07:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 440441 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 A6346C43461 for ; Mon, 17 May 2021 13:09:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 786AA61076 for ; Mon, 17 May 2021 13:09:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237249AbhEQNKw (ORCPT ); Mon, 17 May 2021 09:10:52 -0400 Received: from mga02.intel.com ([134.134.136.20]:52611 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237247AbhEQNKv (ORCPT ); Mon, 17 May 2021 09:10:51 -0400 IronPort-SDR: hZnovEpcOqhGPgfvEdQbsmghStV7tVolHKy1V1cdD5ZDee2H/GT1s5pgSwCrZkWDHkjLyE+EXx QPf7/M/ssoMw== X-IronPort-AV: E=McAfee;i="6200,9189,9986"; a="187582856" X-IronPort-AV: E=Sophos;i="5.82,307,1613462400"; d="scan'208";a="187582856" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 May 2021 06:06:54 -0700 IronPort-SDR: yR1+fiffJuzmecz8Cf5hrQFvUicsiTI55ZHkbVi+r6IVLr8kEmdmUN2OZUV+OKWW9W8JXstuzG vHp/o2sx6Wjw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,307,1613462400"; d="scan'208";a="629982073" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga005.fm.intel.com with ESMTP; 17 May 2021 06:06:51 -0700 Received: by black.fi.intel.com (Postfix, from userid 1001) id 2CB4E348; Mon, 17 May 2021 16:07:13 +0300 (EEST) From: Mika Westerberg To: linux-usb@vger.kernel.org Cc: Yehezkel Bernat , Michael Jamet , Andreas Noever , Lukas Wunner , Jonathan Corbet , Mika Westerberg Subject: [PATCH 1/3] Documentation / thunderbolt: Clean up entries Date: Mon, 17 May 2021 16:07:11 +0300 Message-Id: <20210517130713.30005-2-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210517130713.30005-1-mika.westerberg@linux.intel.com> References: <20210517130713.30005-1-mika.westerberg@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Align the "What" entries along with the rest and move nvm_authenticate_on_disconnect to correct place. Signed-off-by: Mika Westerberg --- .../ABI/testing/sysfs-bus-thunderbolt | 44 +++++++++---------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt index c41c68f64693..05afeee05538 100644 --- a/Documentation/ABI/testing/sysfs-bus-thunderbolt +++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt @@ -1,4 +1,4 @@ -What: /sys/bus/thunderbolt/devices/.../domainX/boot_acl +What: /sys/bus/thunderbolt/devices/.../domainX/boot_acl Date: Jun 2018 KernelVersion: 4.17 Contact: thunderbolt-software@lists.01.org @@ -21,7 +21,7 @@ Description: Holds a comma separated list of device unique_ids that If a device is authorized automatically during boot its boot attribute is set to 1. -What: /sys/bus/thunderbolt/devices/.../domainX/deauthorization +What: /sys/bus/thunderbolt/devices/.../domainX/deauthorization Date: May 2021 KernelVersion: 5.12 Contact: Mika Westerberg @@ -30,7 +30,7 @@ Description: This attribute tells whether the system supports de-authorize PCIe tunnel by writing 0 to authorized attribute under each device. -What: /sys/bus/thunderbolt/devices/.../domainX/iommu_dma_protection +What: /sys/bus/thunderbolt/devices/.../domainX/iommu_dma_protection Date: Mar 2019 KernelVersion: 4.21 Contact: thunderbolt-software@lists.01.org @@ -39,7 +39,7 @@ Description: This attribute tells whether the system uses IOMMU it is not (DMA protection is solely based on Thunderbolt security levels). -What: /sys/bus/thunderbolt/devices/.../domainX/security +What: /sys/bus/thunderbolt/devices/.../domainX/security Date: Sep 2017 KernelVersion: 4.13 Contact: thunderbolt-software@lists.01.org @@ -61,7 +61,7 @@ Description: This attribute holds current Thunderbolt security level the BIOS. ======= ================================================== -What: /sys/bus/thunderbolt/devices/.../authorized +What: /sys/bus/thunderbolt/devices/.../authorized Date: Sep 2017 KernelVersion: 4.13 Contact: thunderbolt-software@lists.01.org @@ -95,14 +95,14 @@ Description: This attribute is used to authorize Thunderbolt devices EKEYREJECTED if the challenge response did not match. == ======================================================== -What: /sys/bus/thunderbolt/devices/.../boot +What: /sys/bus/thunderbolt/devices/.../boot Date: Jun 2018 KernelVersion: 4.17 Contact: thunderbolt-software@lists.01.org Description: This attribute contains 1 if Thunderbolt device was already authorized on boot and 0 otherwise. -What: /sys/bus/thunderbolt/devices/.../generation +What: /sys/bus/thunderbolt/devices/.../generation Date: Jan 2020 KernelVersion: 5.5 Contact: Christian Kellner @@ -110,7 +110,7 @@ Description: This attribute contains the generation of the Thunderbolt controller associated with the device. It will contain 4 for USB4. -What: /sys/bus/thunderbolt/devices/.../key +What: /sys/bus/thunderbolt/devices/.../key Date: Sep 2017 KernelVersion: 4.13 Contact: thunderbolt-software@lists.01.org @@ -226,6 +226,20 @@ Description: When new NVM image is written to the non-active NVM based mailbox before the device is power cycled. Writing 0 here clears the status. +What: /sys/bus/thunderbolt/devices/.../nvm_authenticate_on_disconnect +Date: Oct 2020 +KernelVersion: v5.9 +Contact: Mario Limonciello +Description: For supported devices, automatically authenticate the new Thunderbolt + image when the device is disconnected from the host system. + + This file will accept writing values "1" or "2" + + - Writing "1" will flush the image to the storage + area and prepare the device for authentication on disconnect. + - Writing "2" will run some basic validation on the image + and flush it to the storage area. + What: /sys/bus/thunderbolt/devices/./key Date: Jan 2018 KernelVersion: 4.15 @@ -308,17 +322,3 @@ Date: Oct 2020 KernelVersion: v5.9 Contact: Mika Westerberg Description: Retimer vendor identifier read from the hardware. - -What: /sys/bus/thunderbolt/devices/.../nvm_authenticate_on_disconnect -Date: Oct 2020 -KernelVersion: v5.9 -Contact: Mario Limonciello -Description: For supported devices, automatically authenticate the new Thunderbolt - image when the device is disconnected from the host system. - - This file will accept writing values "1" or "2" - - - Writing "1" will flush the image to the storage - area and prepare the device for authentication on disconnect. - - Writing "2" will run some basic validation on the image - and flush it to the storage area. From patchwork Mon May 17 13:07:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 441656 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 CCA38C43462 for ; Mon, 17 May 2021 13:09:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE3CE61028 for ; Mon, 17 May 2021 13:09:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237258AbhEQNKx (ORCPT ); Mon, 17 May 2021 09:10:53 -0400 Received: from mga02.intel.com ([134.134.136.20]:52611 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235153AbhEQNKw (ORCPT ); Mon, 17 May 2021 09:10:52 -0400 IronPort-SDR: V/1NBMTxnVlBlsUTAvEEjP2colt3vTgYKUIhbCFsiEfpYCwIHFHc6mZBhIAq1ufvut1Ar/pi/3 BjYAIXKTGbUA== X-IronPort-AV: E=McAfee;i="6200,9189,9986"; a="187582858" X-IronPort-AV: E=Sophos;i="5.82,307,1613462400"; d="scan'208";a="187582858" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 May 2021 06:06:54 -0700 IronPort-SDR: T99TydOySQKbk/JGHhFZEl7vtcKzt0u6HrXBFyYuv+/CVmB2UsSdZYkL5BgoCq9dXrZUvzZBXE bFV07ZBCwNGg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,307,1613462400"; d="scan'208";a="629982074" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga005.fm.intel.com with ESMTP; 17 May 2021 06:06:51 -0700 Received: by black.fi.intel.com (Postfix, from userid 1001) id 36AA2662; Mon, 17 May 2021 16:07:13 +0300 (EEST) From: Mika Westerberg To: linux-usb@vger.kernel.org Cc: Yehezkel Bernat , Michael Jamet , Andreas Noever , Lukas Wunner , Jonathan Corbet , Mika Westerberg Subject: [PATCH 2/3] thunderbolt: Add wake from DisplayPort Date: Mon, 17 May 2021 16:07:12 +0300 Message-Id: <20210517130713.30005-3-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210517130713.30005-1-mika.westerberg@linux.intel.com> References: <20210517130713.30005-1-mika.westerberg@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Latest USB4 spec added a new wake bit for DisplayPort so add this to the driver when runtime suspending. This way wake up the domain when a new monitor is plugged in to any of the device routers. Also do the same for pre-USB4 devices through the link controller registers as documented in chapter 13 of the USB4 spec. Signed-off-by: Mika Westerberg --- drivers/thunderbolt/lc.c | 6 ++++-- drivers/thunderbolt/switch.c | 3 ++- drivers/thunderbolt/tb.h | 1 + drivers/thunderbolt/tb_regs.h | 3 +++ drivers/thunderbolt/usb4.c | 6 ++++-- 5 files changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/thunderbolt/lc.c b/drivers/thunderbolt/lc.c index bc671730a11f..c178f0d7beab 100644 --- a/drivers/thunderbolt/lc.c +++ b/drivers/thunderbolt/lc.c @@ -208,8 +208,8 @@ static int tb_lc_set_wake_one(struct tb_switch *sw, unsigned int offset, if (ret) return ret; - ctrl &= ~(TB_LC_SX_CTRL_WOC | TB_LC_SX_CTRL_WOD | TB_LC_SX_CTRL_WOP | - TB_LC_SX_CTRL_WOU4); + ctrl &= ~(TB_LC_SX_CTRL_WOC | TB_LC_SX_CTRL_WOD | TB_LC_SX_CTRL_WODPC | + TB_LC_SX_CTRL_WODPD | TB_LC_SX_CTRL_WOP | TB_LC_SX_CTRL_WOU4); if (flags & TB_WAKE_ON_CONNECT) ctrl |= TB_LC_SX_CTRL_WOC | TB_LC_SX_CTRL_WOD; @@ -217,6 +217,8 @@ static int tb_lc_set_wake_one(struct tb_switch *sw, unsigned int offset, ctrl |= TB_LC_SX_CTRL_WOU4; if (flags & TB_WAKE_ON_PCIE) ctrl |= TB_LC_SX_CTRL_WOP; + if (flags & TB_WAKE_ON_DP) + ctrl |= TB_LC_SX_CTRL_WODPC | TB_LC_SX_CTRL_WODPD; return tb_sw_write(sw, &ctrl, TB_CFG_SWITCH, offset + TB_LC_SX_CTRL, 1); } diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index e73cd296db7e..4d4bc50a3c44 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -2844,7 +2844,8 @@ void tb_switch_suspend(struct tb_switch *sw, bool runtime) if (runtime) { /* Trigger wake when something is plugged in/out */ flags |= TB_WAKE_ON_CONNECT | TB_WAKE_ON_DISCONNECT; - flags |= TB_WAKE_ON_USB4 | TB_WAKE_ON_USB3 | TB_WAKE_ON_PCIE; + flags |= TB_WAKE_ON_USB4; + flags |= TB_WAKE_ON_USB3 | TB_WAKE_ON_PCIE | TB_WAKE_ON_DP; } else if (device_may_wakeup(&sw->dev)) { flags |= TB_WAKE_ON_USB4 | TB_WAKE_ON_USB3 | TB_WAKE_ON_PCIE; } diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index d9d1adc4cfd3..60a987c748ca 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -347,6 +347,7 @@ struct tb_path { #define TB_WAKE_ON_USB4 BIT(2) #define TB_WAKE_ON_USB3 BIT(3) #define TB_WAKE_ON_PCIE BIT(4) +#define TB_WAKE_ON_DP BIT(5) /** * struct tb_cm_ops - Connection manager specific operations vector diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h index 626751e06292..113d7903b183 100644 --- a/drivers/thunderbolt/tb_regs.h +++ b/drivers/thunderbolt/tb_regs.h @@ -195,6 +195,7 @@ struct tb_regs_switch_header { #define ROUTER_CS_5_SLP BIT(0) #define ROUTER_CS_5_WOP BIT(1) #define ROUTER_CS_5_WOU BIT(2) +#define ROUTER_CS_5_WOD BIT(3) #define ROUTER_CS_5_C3S BIT(23) #define ROUTER_CS_5_PTO BIT(24) #define ROUTER_CS_5_UTO BIT(25) @@ -458,6 +459,8 @@ struct tb_regs_hop { #define TB_LC_SX_CTRL 0x96 #define TB_LC_SX_CTRL_WOC BIT(1) #define TB_LC_SX_CTRL_WOD BIT(2) +#define TB_LC_SX_CTRL_WODPC BIT(3) +#define TB_LC_SX_CTRL_WODPD BIT(4) #define TB_LC_SX_CTRL_WOU4 BIT(5) #define TB_LC_SX_CTRL_WOP BIT(6) #define TB_LC_SX_CTRL_L1C BIT(16) diff --git a/drivers/thunderbolt/usb4.c b/drivers/thunderbolt/usb4.c index c0a14bfa36d4..7e8b5ca3114c 100644 --- a/drivers/thunderbolt/usb4.c +++ b/drivers/thunderbolt/usb4.c @@ -413,7 +413,7 @@ int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags) } /* - * Enable wakes from PCIe and USB 3.x on this router. Only + * Enable wakes from PCIe, USB 3.x and DP on this router. Only * needed for device routers. */ if (route) { @@ -421,11 +421,13 @@ int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags) if (ret) return ret; - val &= ~(ROUTER_CS_5_WOP | ROUTER_CS_5_WOU); + val &= ~(ROUTER_CS_5_WOP | ROUTER_CS_5_WOU | ROUTER_CS_5_WOD); if (flags & TB_WAKE_ON_USB3) val |= ROUTER_CS_5_WOU; if (flags & TB_WAKE_ON_PCIE) val |= ROUTER_CS_5_WOP; + if (flags & TB_WAKE_ON_DP) + val |= ROUTER_CS_5_WOD; ret = tb_sw_write(sw, &val, TB_CFG_SWITCH, ROUTER_CS_5, 1); if (ret) From patchwork Mon May 17 13:07:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 441655 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 53902C43460 for ; Mon, 17 May 2021 13:09:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3601061076 for ; Mon, 17 May 2021 13:09:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237293AbhEQNLH (ORCPT ); Mon, 17 May 2021 09:11:07 -0400 Received: from mga09.intel.com ([134.134.136.24]:19579 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237291AbhEQNLE (ORCPT ); Mon, 17 May 2021 09:11:04 -0400 IronPort-SDR: FAjBxukHvQVbjMl/b0ZoTR/jR1Csd+m3UHF07SwXGiWp5JlrPJHbBc/K7ntJ05FQVMBVrx5XpP vhFrkpoLJ7Sg== X-IronPort-AV: E=McAfee;i="6200,9189,9986"; a="200510557" X-IronPort-AV: E=Sophos;i="5.82,307,1613462400"; d="scan'208";a="200510557" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 May 2021 06:06:54 -0700 IronPort-SDR: CTbraQv7RJZBCcaNkGK1Cglio1kE4j+Lbr0L/XdgOMqihrI14FXm1mu0PXDAgfjgIkEk04wDrB O0e6q3LIJRAw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,307,1613462400"; d="scan'208";a="438916141" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga008.jf.intel.com with ESMTP; 17 May 2021 06:06:52 -0700 Received: by black.fi.intel.com (Postfix, from userid 1001) id 3A07D752; Mon, 17 May 2021 16:07:13 +0300 (EEST) From: Mika Westerberg To: linux-usb@vger.kernel.org Cc: Yehezkel Bernat , Michael Jamet , Andreas Noever , Lukas Wunner , Jonathan Corbet , Mika Westerberg Subject: [PATCH 3/3] thunderbolt: Align USB4 router wakes configuration with the CM guide Date: Mon, 17 May 2021 16:07:13 +0300 Message-Id: <20210517130713.30005-4-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210517130713.30005-1-mika.westerberg@linux.intel.com> References: <20210517130713.30005-1-mika.westerberg@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The USB4 Configuration Manager guide suggests that the USB4 port wakes are configured in a certain way, like that when the port is configured the wake-on-connect should not be set and so forth, so align the driver with this. Signed-off-by: Mika Westerberg --- drivers/thunderbolt/usb4.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/thunderbolt/usb4.c b/drivers/thunderbolt/usb4.c index 7e8b5ca3114c..b56af7b0a093 100644 --- a/drivers/thunderbolt/usb4.c +++ b/drivers/thunderbolt/usb4.c @@ -399,12 +399,18 @@ int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags) val &= ~(PORT_CS_19_WOC | PORT_CS_19_WOD | PORT_CS_19_WOU4); - if (flags & TB_WAKE_ON_CONNECT) - val |= PORT_CS_19_WOC; - if (flags & TB_WAKE_ON_DISCONNECT) - val |= PORT_CS_19_WOD; - if (flags & TB_WAKE_ON_USB4) + if (tb_is_upstream_port(port)) { val |= PORT_CS_19_WOU4; + } else { + bool configured = val & PORT_CS_19_PC; + + if ((flags & TB_WAKE_ON_CONNECT) && !configured) + val |= PORT_CS_19_WOC; + if ((flags & TB_WAKE_ON_DISCONNECT) && configured) + val |= PORT_CS_19_WOD; + if ((flags & TB_WAKE_ON_USB4) && configured) + val |= PORT_CS_19_WOU4; + } ret = tb_port_write(port, &val, TB_CFG_PORT, port->cap_usb4 + PORT_CS_19, 1);