From patchwork Fri Feb 21 23:28:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elliot Berman X-Patchwork-Id: 190263 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 E6C27C35669 for ; Fri, 21 Feb 2020 23:28:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BE587207FD for ; Fri, 21 Feb 2020 23:28:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="Ey0mYM3F" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729693AbgBUX2b (ORCPT ); Fri, 21 Feb 2020 18:28:31 -0500 Received: from mail26.static.mailgun.info ([104.130.122.26]:62067 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728656AbgBUX2b (ORCPT ); Fri, 21 Feb 2020 18:28:31 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1582327710; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=bIJ07qh5lOtDS6LJCkZXbqG2dvWXiGWlxxUNOg7SvO8=; b=Ey0mYM3FrsWzmmP203THfOt4Mt28ZFtN5Z9qFHhu+LMKsiKGUzYqTBjO0Lbto9sIMcJh1ijb Lr5zt3CgwDQP7ePqHiO3iza3LE+yV1nOsjjtdS99enmoDsVI4IaJ00Jo3wgK2KBTy41XitWp O/mbtrqr8qgUI4EdALneR6aabh0= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e50678e.7fb48a24ded8-smtp-out-n03; Fri, 21 Feb 2020 23:28:14 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 286B5C4479F; Fri, 21 Feb 2020 23:28:13 +0000 (UTC) Received: from eberman-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: eberman) by smtp.codeaurora.org (Postfix) with ESMTPSA id 2CAD5C433A2; Fri, 21 Feb 2020 23:28:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2CAD5C433A2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=eberman@codeaurora.org From: Elliot Berman To: Mark Rutland , Lorenzo Pieralisi , Sudeep Holla Cc: Elliot Berman , Bjorn Andersson , Trilok Soni , Prasad Sodagudi , David Collins , linux-arm-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] dt: psci: Add arm,psci-sys-reset2-type property Date: Fri, 21 Feb 2020 15:28:03 -0800 Message-Id: <1582327685-6316-2-git-send-email-eberman@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582327685-6316-1-git-send-email-eberman@codeaurora.org> References: <1582327685-6316-1-git-send-email-eberman@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Some implementors of PSCI may relax the requirements of the PSCI architectural warm reset. In order to comply with PSCI specification, a different reset_type value must be used. The alternate PSCI SYSTEM_RESET2 may be used in all warm/soft reboot scenarios, replacing the architectural warm reset. Signed-off-by: Elliot Berman --- Documentation/devicetree/bindings/arm/psci.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml index 8ef8542..a790e5a 100644 --- a/Documentation/devicetree/bindings/arm/psci.yaml +++ b/Documentation/devicetree/bindings/arm/psci.yaml @@ -102,6 +102,11 @@ properties: [1] Kernel documentation - ARM idle states bindings Documentation/devicetree/bindings/arm/idle-states.txt + arm,psci-sys-reset2-type: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + reset_type parameter value to use during a warm or soft reboot. + "#power-domain-cells": description: The number of cells in a PM domain specifier as per binding in [3]. From patchwork Fri Feb 21 23:28:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elliot Berman X-Patchwork-Id: 190264 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 350B7C35641 for ; Fri, 21 Feb 2020 23:28:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 09FFB2072C for ; Fri, 21 Feb 2020 23:28:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="X+glJbJl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729187AbgBUX2V (ORCPT ); Fri, 21 Feb 2020 18:28:21 -0500 Received: from mail27.static.mailgun.info ([104.130.122.27]:36837 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726826AbgBUX2V (ORCPT ); Fri, 21 Feb 2020 18:28:21 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1582327700; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=qTXV8CL2DFBuSGQ2DYrUjFlxyMbEdqv6bY+3ktuK+pA=; b=X+glJbJliF4oiUp4+vKiqN/qsCUZuhyUwyKliFgW/szBLBGBb54/sqdRj4SaEBPczSFfRRox oFVqT4Bc4BwrIjsPboQ2iYswxaB7cWuX6e7UhA0nXe664UJ0UWfSfjYa567nN9P5E+fXYB4c 4CVI8JmYl2VnVPpeiF2C9GbAc2E= X-Mailgun-Sending-Ip: 104.130.122.27 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e50678f.7fd75cde37d8-smtp-out-n01; Fri, 21 Feb 2020 23:28:15 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 4AD7AC447A3; Fri, 21 Feb 2020 23:28:14 +0000 (UTC) Received: from eberman-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: eberman) by smtp.codeaurora.org (Postfix) with ESMTPSA id 678DAC447A5; Fri, 21 Feb 2020 23:28:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 678DAC447A5 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=eberman@codeaurora.org From: Elliot Berman To: Mark Rutland , Lorenzo Pieralisi , Sudeep Holla Cc: Elliot Berman , Bjorn Andersson , Trilok Soni , Prasad Sodagudi , David Collins , linux-arm-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] arm64: dts: qcom: sm8250: Add vendor-specific PSCI system reset2 type Date: Fri, 21 Feb 2020 15:28:05 -0800 Message-Id: <1582327685-6316-4-git-send-email-eberman@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582327685-6316-1-git-send-email-eberman@codeaurora.org> References: <1582327685-6316-1-git-send-email-eberman@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Qualcomm Technologies, Inc. SoCs do not guarantee that an architectural warm reset boots back into Linux kernel. For instance, if download mode or reboot reason cookies are set, the SoC would do a warm reset into an alternate exception level (e.g. a mode to collect RAM dumps) or application at EL1 (e.g. fastboot mode). Thus, Qualcomm Technologies, Inc. SoCs support a vendor-specific warm reset type that can be used in all instances of warm/soft reboots. Signed-off-by: Elliot Berman --- arch/arm64/boot/dts/qcom/sm8250.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi index f63df12..b85d234 100644 --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi @@ -162,6 +162,7 @@ psci { compatible = "arm,psci-1.0"; method = "smc"; + arm,psci-sys-reset2-type = <0x80000000>; }; reserved_memory: reserved-memory {