From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.5 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=unavailable 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 9EFFFC54E8E for ; Mon, 11 May 2020 17:56:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7E1EC206D9 for ; Mon, 11 May 2020 17:56:06 +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="lDD23zJ5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726891AbgEKR4G (ORCPT ); Mon, 11 May 2020 13:56:06 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:50883 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726310AbgEKR4F (ORCPT ); Mon, 11 May 2020 13:56:05 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1589219765; h=Content-Transfer-Encoding: MIME-Version: Message-Id: Date: Subject: Cc: To: From: Sender; bh=4qUl98VkUMkimx3wUPtLlVj4sP6schRM56csAATyTnI=; b=lDD23zJ51/+8mL9WpM25jvHcAGGF7V53eFbeYDbX6M4abzwaDJDiHKEeXWIz78dvE6+PqefZ 0ZegsudugXZnPHrfu0TmVRqeZcoodEPpOI9JkuBagA/2NyIVRuf4reDVmg6QshVuIPhd6431 liIcr632sMDuNWDPTWcmLLem/5Y= 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 5eb991a4.7f88f5d6cd88-smtp-out-n01; Mon, 11 May 2020 17:55:48 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id ED705C433BA; Mon, 11 May 2020 17:55:47 +0000 (UTC) Received: from blr-ubuntu-87.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sibis) by smtp.codeaurora.org (Postfix) with ESMTPSA id 8C439C433CB; Mon, 11 May 2020 17:55:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8C439C433CB 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=sibis@codeaurora.org From: Sibi Sankar To: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org, swboyd@chromium.org Cc: bjorn.andersson@linaro.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, dianders@chromium.org, evgreen@chromium.org, mka@chromium.org, Sibi Sankar Subject: [PATCH v6] iommu/arm-smmu-qcom: Request direct mapping for modem device Date: Mon, 11 May 2020 23:25:32 +0530 Message-Id: <20200511175532.25874-1-sibis@codeaurora.org> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The modem remote processor has two access paths to DDR. One path is directly connected to DDR and another path goes through an SMMU. The SMMU path is configured to be a direct mapping because it's used by various peripherals in the modem subsystem. Typically this direct mapping is configured statically at EL2 by QHEE (Qualcomm's Hypervisor Execution Environment) before the kernel is entered. In certain firmware configuration, especially when the kernel is already in full control of the SMMU, defer programming the modem SIDs to the kernel. Let's add compatibles here so that we can have the kernel program the SIDs for the modem in these cases. Signed-off-by: Sibi Sankar --- V6 * Rebased on Will's for-joerg/arm-smmu/updates * Reword commit message and add more details [Stephen] drivers/iommu/arm-smmu-qcom.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c index 5bedf21587a56..cf01d0215a397 100644 --- a/drivers/iommu/arm-smmu-qcom.c +++ b/drivers/iommu/arm-smmu-qcom.c @@ -17,7 +17,9 @@ static const struct of_device_id qcom_smmu_client_of_match[] = { { .compatible = "qcom,mdp4" }, { .compatible = "qcom,mdss" }, { .compatible = "qcom,sc7180-mdss" }, + { .compatible = "qcom,sc7180-mss-pil" }, { .compatible = "qcom,sdm845-mdss" }, + { .compatible = "qcom,sdm845-mss-pil" }, { } }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.5 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 BAAA0C54E8D for ; 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Mon, 11 May 2020 17:55:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8C439C433CB 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=sibis@codeaurora.org From: Sibi Sankar To: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org, swboyd@chromium.org Subject: [PATCH v6] iommu/arm-smmu-qcom: Request direct mapping for modem device Date: Mon, 11 May 2020 23:25:32 +0530 Message-Id: <20200511175532.25874-1-sibis@codeaurora.org> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 Cc: linux-arm-msm@vger.kernel.org, dianders@chromium.org, evgreen@chromium.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, mka@chromium.org, Sibi Sankar , bjorn.andersson@linaro.org, linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" The modem remote processor has two access paths to DDR. One path is directly connected to DDR and another path goes through an SMMU. The SMMU path is configured to be a direct mapping because it's used by various peripherals in the modem subsystem. Typically this direct mapping is configured statically at EL2 by QHEE (Qualcomm's Hypervisor Execution Environment) before the kernel is entered. In certain firmware configuration, especially when the kernel is already in full control of the SMMU, defer programming the modem SIDs to the kernel. Let's add compatibles here so that we can have the kernel program the SIDs for the modem in these cases. Signed-off-by: Sibi Sankar --- V6 * Rebased on Will's for-joerg/arm-smmu/updates * Reword commit message and add more details [Stephen] drivers/iommu/arm-smmu-qcom.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c index 5bedf21587a56..cf01d0215a397 100644 --- a/drivers/iommu/arm-smmu-qcom.c +++ b/drivers/iommu/arm-smmu-qcom.c @@ -17,7 +17,9 @@ static const struct of_device_id qcom_smmu_client_of_match[] = { { .compatible = "qcom,mdp4" }, { .compatible = "qcom,mdss" }, { .compatible = "qcom,sc7180-mdss" }, + { .compatible = "qcom,sc7180-mss-pil" }, { .compatible = "qcom,sdm845-mdss" }, + { .compatible = "qcom,sdm845-mss-pil" }, { } }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 C7226C47255 for ; 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Mon, 11 May 2020 17:55:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8C439C433CB 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=sibis@codeaurora.org From: Sibi Sankar To: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org, swboyd@chromium.org Subject: [PATCH v6] iommu/arm-smmu-qcom: Request direct mapping for modem device Date: Mon, 11 May 2020 23:25:32 +0530 Message-Id: <20200511175532.25874-1-sibis@codeaurora.org> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200511_105554_190571_56EA5FEE X-CRM114-Status: GOOD ( 11.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-msm@vger.kernel.org, dianders@chromium.org, evgreen@chromium.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, mka@chromium.org, Sibi Sankar , bjorn.andersson@linaro.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org The modem remote processor has two access paths to DDR. One path is directly connected to DDR and another path goes through an SMMU. The SMMU path is configured to be a direct mapping because it's used by various peripherals in the modem subsystem. Typically this direct mapping is configured statically at EL2 by QHEE (Qualcomm's Hypervisor Execution Environment) before the kernel is entered. In certain firmware configuration, especially when the kernel is already in full control of the SMMU, defer programming the modem SIDs to the kernel. Let's add compatibles here so that we can have the kernel program the SIDs for the modem in these cases. Signed-off-by: Sibi Sankar --- V6 * Rebased on Will's for-joerg/arm-smmu/updates * Reword commit message and add more details [Stephen] drivers/iommu/arm-smmu-qcom.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm-smmu-qcom.c b/drivers/iommu/arm-smmu-qcom.c index 5bedf21587a56..cf01d0215a397 100644 --- a/drivers/iommu/arm-smmu-qcom.c +++ b/drivers/iommu/arm-smmu-qcom.c @@ -17,7 +17,9 @@ static const struct of_device_id qcom_smmu_client_of_match[] = { { .compatible = "qcom,mdp4" }, { .compatible = "qcom,mdss" }, { .compatible = "qcom,sc7180-mdss" }, + { .compatible = "qcom,sc7180-mss-pil" }, { .compatible = "qcom,sdm845-mdss" }, + { .compatible = "qcom,sdm845-mss-pil" }, { } }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel