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[2620:137:e000::1:20]) by mx.google.com with ESMTP id q30-20020a50cc9e000000b004604906b23csi665581edi.545.2022.12.22.05.34.48; Thu, 22 Dec 2022 05:35:12 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=nA0ejjbc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235212AbiLVNcA (ORCPT + 99 others); Thu, 22 Dec 2022 08:32:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234727AbiLVNbw (ORCPT ); Thu, 22 Dec 2022 08:31:52 -0500 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E55A13FAB for ; Thu, 22 Dec 2022 05:31:51 -0800 (PST) Received: by mail-pj1-x1035.google.com with SMTP id w4-20020a17090ac98400b002186f5d7a4cso5757496pjt.0 for ; Thu, 22 Dec 2022 05:31:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=2xuFcNG+Lmd6sCAcx37A72Ddu+m83mu9NNvxLdsptSw=; b=nA0ejjbc4ytOQVnxKuefw8MAuoRRUqjMaGNYnMY+ffjK/YbyiaNBpzJcU+FMdCNPv9 qzJ+NCcvT5bJcFZsC+3gSV9hOTT10rdAe7l12HO/wqnJ3E5e1Iz1Oyo7zDYY6iJfo2Yr abNHgiimpIb4/+OxWWJ83YaQciW8gx1jdh/CiWuA4yoRQ9JXoZU/J6WLVLCG9eWXpYqZ Pzssu2lDki9ge53ut13Cr6nDhJJvEng5+Gt0G0Yd6CJh9ZXuScFZdiV+socMh4eDvQWG qyXqE6bmxNqbqhIaRZK4pZDCEg7UDXXXZzL53S0KezKK9Mr5F6o/kxJiNUQTQKE37WxJ UAAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2xuFcNG+Lmd6sCAcx37A72Ddu+m83mu9NNvxLdsptSw=; b=FITo8zn0/W8urRfx9WpC94B0RhhWRapGqN+WF2zk+3qoRlreEHIPusZHr9cx3pGjec OBek7YgDe0KDr9OvjuJectC4C/BBHmAapRE7VqkRhVJthYjYYgDh/L166xaMKwSEKkm5 +fvBipGuDxiXHpHk/x6D8V960tGacyCYdyLTAdkmRQc6Ywj+0WIcPezyFir3V8xCI9WV Q5QQEJOjIHPg+GeG/sG/nvoCML17uXZNChzCeQq6uDEewAKi6mcQav45EiwMB6J+Mrsx kQZKmgDoSwTACmZqjriTGqGFsIcKCJEnbt8y5XtRspx7u8+/fhwW22v3PUWvgrgGUpGv 3n7w== X-Gm-Message-State: AFqh2kqaPRqT5MHY4ibPWfgLjp+LTZFz0r2p+voX1H/hrQeR+FuD7z/y VSxicHDdbEdgpXIiVMaL5Y0u X-Received: by 2002:a05:6a20:3d14:b0:af:b909:2b3f with SMTP id y20-20020a056a203d1400b000afb9092b3fmr8965864pzi.34.1671715910863; Thu, 22 Dec 2022 05:31:50 -0800 (PST) Received: from localhost.localdomain ([117.217.177.99]) by smtp.gmail.com with ESMTPSA id f66-20020a623845000000b00573a9d13e9esm737467pfa.36.2022.12.22.05.31.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Dec 2022 05:31:50 -0800 (PST) From: Manivannan Sadhasivam To: andersson@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org Cc: bhelgaas@google.com, konrad.dybcio@linaro.org, linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH v2 3/3] arm64: dts: qcom: sm8450: Use GIC-ITS for PCIe0 and PCIe1 Date: Thu, 22 Dec 2022 19:01:23 +0530 Message-Id: <20221222133123.50676-4-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221222133123.50676-1-manivannan.sadhasivam@linaro.org> References: <20221222133123.50676-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1752921394275995956?= X-GMAIL-MSGID: =?utf-8?q?1752921394275995956?= Both PCIe0 and PCIe1 controllers are capable of receiving MSIs from endpoint devices using GIC-ITS MSI controller. Add support for it. Currently, BDF (0:0.0) and BDF (1:0.0) are enabled and with the msi-map-mask of 0xff00, all the 32 devices under these two busses can share the same Device ID. The GIC-ITS MSI implementation provides an advantage over internal MSI implementation using Locality-specific Peripheral Interrupts (LPI) that would allow MSIs to be targeted for each CPU core. It should be noted that the MSIs for BDF (1:0.0) only works with Device ID of 0x5980 and 0x5a00. Hence, the IDs are swapped. Signed-off-by: Manivannan Sadhasivam --- arch/arm64/boot/dts/qcom/sm8450.dtsi | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi index 570475040d95..c4dd5838fac6 100644 --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi @@ -1733,9 +1733,13 @@ pcie0: pci@1c00000 { ranges = <0x01000000 0x0 0x60200000 0 0x60200000 0x0 0x100000>, <0x02000000 0x0 0x60300000 0 0x60300000 0x0 0x3d00000>; - interrupts = ; - interrupt-names = "msi"; - #interrupt-cells = <1>; + /* + * MSIs for BDF (1:0.0) only works with Device ID 0x5980. + * Hence, the IDs are swapped. + */ + msi-map = <0x0 &gic_its 0x5981 0x1>, + <0x100 &gic_its 0x5980 0x1>; + msi-map-mask = <0xff00>; interrupt-map-mask = <0 0 0 0x7>; interrupt-map = <0 0 0 1 &intc 0 0 0 149 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ <0 0 0 2 &intc 0 0 0 150 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ @@ -1842,9 +1846,13 @@ pcie1: pci@1c08000 { ranges = <0x01000000 0x0 0x40200000 0 0x40200000 0x0 0x100000>, <0x02000000 0x0 0x40300000 0 0x40300000 0x0 0x1fd00000>; - interrupts = ; - interrupt-names = "msi"; - #interrupt-cells = <1>; + /* + * MSIs for BDF (1:0.0) only works with Device ID 0x5a00. + * Hence, the IDs are swapped. + */ + msi-map = <0x0 &gic_its 0x5a01 0x1>, + <0x100 &gic_its 0x5a00 0x1>; + msi-map-mask = <0xff00>; interrupt-map-mask = <0 0 0 0x7>; interrupt-map = <0 0 0 1 &intc 0 0 0 434 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ <0 0 0 2 &intc 0 0 0 435 IRQ_TYPE_LEVEL_HIGH>, /* int_b */