From patchwork Tue Nov 15 11:31:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Elder X-Patchwork-Id: 13043537 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 BE361C4167B for ; Tue, 15 Nov 2022 11:31:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229505AbiKOLba (ORCPT ); Tue, 15 Nov 2022 06:31:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229990AbiKOLb2 (ORCPT ); Tue, 15 Nov 2022 06:31:28 -0500 Received: from mail-wr1-x432.google.com (mail-wr1-x432.google.com [IPv6:2a00:1450:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B2B3517E3E for ; Tue, 15 Nov 2022 03:31:26 -0800 (PST) Received: by mail-wr1-x432.google.com with SMTP id h9so23768594wrt.0 for ; Tue, 15 Nov 2022 03:31:26 -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=//f8EyB8LSqoVSjEW+GVHDxH1+750hjBFR+YGqa4pV0=; b=jOQPJlYPnNW9IUDitc6PpH0x42P8nRMNN76WIopGX4H6ZdAX2i+7ToPcxs9pg5AQgd Iyv6vdhXzotGfB9gbnJyJZfzsGK7SeVOYj4k8v0xcH2bMDB463fnj0fGgaEvACF4RjEz tzF6R0iDGH8rgg3wvI0Z6mQx+GUrCsFcQOuYcqKeyTOp4YQmOkQIcbq9gdTkxu6EOrL5 G7D1JfR7dPPJWVegWKyRXag0Rc85AQPcftM8S+pLyqQyJHzKZVT0ehD7CprlRBUCFQCO 99akSAAUFhhXELzvfLqyG+itTD6SukYvFdS+OVPE2R/Ox29nLjMr63abXVx8mUpeodhJ yijg== 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=//f8EyB8LSqoVSjEW+GVHDxH1+750hjBFR+YGqa4pV0=; b=azHBX7OgJJVie+nRjkEg6XNqBeE5AmrMT/yaEa0BocPQOPMUnIQ9aCnfm7+t3k5rjf RetLgSVF55HSJzg1CU9KTkMMgjrQ6MVD7kRaLtiQHNdfAJSsnVe5Jyxl/IaHXPVVBcs6 n5kdJCBPQ9ECUCqyNM0lGsQn2jKP6hSTqyaeHYg6CDmxZUEC6iMFElGjY0J1SLxWzjXm HzFGkiLRBLJww4mbbbj8UwQtGem7DVaKa4kdvKF7P+VGJ1Y6tv2WKviKWDCRXi6RK2Au zwEvjqQdHz4IwxLdcDkcKvjw/ghKSZBR4abqya1Ga9x6JK5KLcQsYSRerYuH/t6/CQUf ZnVQ== X-Gm-Message-State: ANoB5plu433brRFMc7N9VA+o9G1tOSITbR/cp/Mn5mU0PuUZE+j4m9fz Y4aL2PoAOefN/d+XyLKs4tB5pQ== X-Google-Smtp-Source: AA0mqf5DtAxOcotMdQwLAmHvLj0dquk5n3MaUKK4x40Gtp7hZirmSFAT1G4XkBFw8E8GxpCQt6cCUQ== X-Received: by 2002:adf:fac3:0:b0:22e:244d:687a with SMTP id a3-20020adffac3000000b0022e244d687amr10329018wrs.82.1668511885176; Tue, 15 Nov 2022 03:31:25 -0800 (PST) Received: from zoltan.localdomain ([81.128.185.34]) by smtp.gmail.com with ESMTPSA id r18-20020adfe692000000b00238df11940fsm12273091wrm.16.2022.11.15.03.31.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Nov 2022 03:31:24 -0800 (PST) From: Alex Elder To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: andersson@kernel.org, konrad.dybcio@linaro.org, agross@kernel.org, elder@kernel.org, linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v2 1/5] dt-bindings: net: qcom,ipa: deprecate modem-init Date: Tue, 15 Nov 2022 05:31:15 -0600 Message-Id: <20221115113119.249893-2-elder@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221115113119.249893-1-elder@linaro.org> References: <20221115113119.249893-1-elder@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org GSI firmware for IPA must be loaded during initialization, either by the AP or by the modem. The loader is currently specified based on whether the Boolean modem-init property is present. Instead, use a new property with an enumerated value to indicate explicitly how GSI firmware gets loaded. With this in place, a third approach can be added in an upcoming patch. The new qcom,gsi-loader property has two defined values: - self: The AP loads GSI firmware - modem: The modem loads GSI firmware The modem-init property must still be supported, but is now marked deprecated. Update the example so it represents the SC7180 SoC, and provide examples for the qcom,gsi-loader, memory-region, and firmware-name properties. Signed-off-by: Alex Elder Reviewed-by: Krzysztof Kozlowski --- v2: Updated description, switched example completely to SC7180. .../devicetree/bindings/net/qcom,ipa.yaml | 76 ++++++++++++++----- 1 file changed, 55 insertions(+), 21 deletions(-) diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml index e752b76192df0..d0f34763b9383 100644 --- a/Documentation/devicetree/bindings/net/qcom,ipa.yaml +++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml @@ -124,19 +124,29 @@ properties: - const: ipa-clock-enabled-valid - const: ipa-clock-enabled + qcom,gsi-loader: + enum: + - self + - modem + description: + Indicates how GSI firmware should be loaded. If the AP loads + and validates GSI firmware, this property has value "self". + If the modem does this, this property has value "modem". + modem-init: + deprecated: true type: boolean description: - If present, it indicates that the modem is responsible for - performing early IPA initialization, including loading and - validating firwmare used by the GSI. + This is the older (deprecated) way of indicating how GSI firmware + should be loaded. If present, the modem loads GSI firmware; if + absent, the AP loads GSI firmware. memory-region: maxItems: 1 description: If present, a phandle for a reserved memory area that holds the firmware passed to Trust Zone for authentication. Required - when Trust Zone (not the modem) performs early initialization. + when the AP (not the modem) performs early initialization. firmware-name: $ref: /schemas/types.yaml#/definitions/string @@ -155,15 +165,36 @@ required: - interconnects - qcom,smem-states -# If modem-init is not present, the AP loads GSI firmware, and -# memory-region must be specified -if: - not: - required: - - modem-init -then: - required: - - memory-region +allOf: + # If qcom,gsi-loader is present, modem-init must not be present + - if: + required: + - qcom,gsi-loader + then: + properties: + modem-init: false + + # If qcom,gsi-loader is "self", the AP loads GSI firmware, and + # memory-region must be specified + if: + properties: + qcom,gsi-loader: + contains: + const: self + then: + required: + - memory-region + else: + # If qcom,gsi-loader is not present, we use deprecated behavior. + # If modem-init is not present, the AP loads GSI firmware, and + # memory-region must be specified. + if: + not: + required: + - modem-init + then: + required: + - memory-region additionalProperties: false @@ -194,14 +225,17 @@ examples: }; ipa@1e40000 { - compatible = "qcom,sdm845-ipa"; + compatible = "qcom,sc7180-ipa"; - modem-init; + qcom,gsi-loader = "self"; + memory-region = <&ipa_fw_mem>; + firmware-name = "qcom/sc7180-trogdor/modem/modem.mdt"; - iommus = <&apps_smmu 0x720 0x3>; + iommus = <&apps_smmu 0x440 0x0>, + <&apps_smmu 0x442 0x0>; reg = <0x1e40000 0x7000>, - <0x1e47000 0x2000>, - <0x1e04000 0x2c000>; + <0x1e47000 0x2000>, + <0x1e04000 0x2c000>; reg-names = "ipa-reg", "ipa-shared", "gsi"; @@ -219,9 +253,9 @@ examples: clock-names = "core"; interconnects = - <&rsc_hlos MASTER_IPA &rsc_hlos SLAVE_EBI1>, - <&rsc_hlos MASTER_IPA &rsc_hlos SLAVE_IMEM>, - <&rsc_hlos MASTER_APPSS_PROC &rsc_hlos SLAVE_IPA_CFG>; + <&aggre2_noc MASTER_IPA 0 &mc_virt SLAVE_EBI1 0>, + <&aggre2_noc MASTER_IPA 0 &system_noc SLAVE_IMEM 0>, + <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_IPA_CFG 0>; interconnect-names = "memory", "imem", "config";