From patchwork Wed Apr 27 12:16:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 12828740 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 1699EC433FE for ; Wed, 27 Apr 2022 12:17:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233661AbiD0MUM (ORCPT ); Wed, 27 Apr 2022 08:20:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49172 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233700AbiD0MUL (ORCPT ); Wed, 27 Apr 2022 08:20:11 -0400 Received: from mail-lf1-x136.google.com (mail-lf1-x136.google.com [IPv6:2a00:1450:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 059774EA0E for ; Wed, 27 Apr 2022 05:17:00 -0700 (PDT) Received: by mail-lf1-x136.google.com with SMTP id bu29so2873604lfb.0 for ; Wed, 27 Apr 2022 05:16:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=XjLnXGfkIR05kXKOCheJZDc4f1DBX0xJuReW0/g+Ysg=; b=bascVFI3Z07hSXeIRl4B/UcxxxjcIVM+fiWysgRncRBRmWiLSPC2TmTee5AS/lJ+ce JYkcaUY6K5Q/Gn2gF7LPig2LFzDTj8ft0Zh3CulMcOfnwV9k9ev0jppYsq13qmXVhCGb Kg2mMvM4gDjDSbTobHyLydlG19rWCttrqZQgg9Fk5brT27zZaqeWACZ7Yl3jAPK6JVeT 7XiBlOiYSNo/jH60C6t9wSXjWhiv3Y3ex9wEGC0R+wKdMOAlht+jZLhKgqgetpKC4IXM JXriS24/GXvgXEmpHninBqUNjEYBOgdWVfxYqsrCVKLipZIVoGYSGN99eSytzdBbhZqg gCvg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=XjLnXGfkIR05kXKOCheJZDc4f1DBX0xJuReW0/g+Ysg=; b=peRbVdUVen+NY8x9UJKQ4Cp3lso6FolyO0Rk7ilgfCfhO6Wz/2PgFs6xcGlEuS6pXl M6Sl/X6O29kcAz9FmglMIyJJkyejUwVRe7YA5t2/nvXUuWyAbRlQRtsZhccwlq8CW0js qr4MPnKMrZPxZJxkQTGdhLABK16dpc+K2mVEWhaxIVUf5hH04Y6N7IW/NxtAOOpuxUwy 6NpdBCpmx+EHJFp8l+mq9svELRM9HRsOkGNXMrU3HqzNB1ilk7jYQHAOUA8NvIWkv/W+ WSNKLsHHpRh7G3fnW8lGKHR19yX4ie/5IO8Ux5XqRQIgIj/lCuKQGMlY2dTQnT0jj4/8 kVmA== X-Gm-Message-State: AOAM533W5oWP2xHyDuiusFwbk6WkZBEivxI3t49K+U1b/+hg0rpp9hDp GwH/Od4UausORsX/Ifg27uw0Og== X-Google-Smtp-Source: ABdhPJxVHQUzNKpUL5VDuc04/wa985OVJgEyhxawcG6jzV2iiMJzeu88WwCLV8+1RlTpPMWS7jF60A== X-Received: by 2002:a05:6512:2307:b0:471:c299:7a47 with SMTP id o7-20020a056512230700b00471c2997a47mr19705027lfu.134.1651061818192; Wed, 27 Apr 2022 05:16:58 -0700 (PDT) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id y1-20020a0565123f0100b0044584339e5dsm2043388lfa.190.2022.04.27.05.16.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Apr 2022 05:16:57 -0700 (PDT) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Rob Herring , Krzysztof Kozlowski , Jingoo Han , Gustavo Pimentel , Lorenzo Pieralisi , Bjorn Helgaas , Stanimir Varbanov , Manivannan Sadhasivam Cc: Vinod Koul , linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 3/5] PCI: qcom: Handle MSI IRQs properly Date: Wed, 27 Apr 2022 15:16:51 +0300 Message-Id: <20220427121653.3158569-4-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220427121653.3158569-1-dmitry.baryshkov@linaro.org> References: <20220427121653.3158569-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Qualcomm platforms each group of 32 MSI vectors is routed to the separate GIC interrupt. Thus to receive higher MSI vectors properly, enable has_split_msi_irq support. Note, that if DT doesn't list extra MSI interrupts, DWC core will limit the amount of supported MSI vectors accordingly (to 32). Fixes: 20f1bfb8dd62 ("PCI: qcom: Add support for handling MSIs from 8 endpoints") Signed-off-by: Dmitry Baryshkov --- drivers/pci/controller/dwc/pcie-qcom.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 45631c0aa468..78c4e2bcf38a 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -1587,6 +1587,7 @@ static int qcom_pcie_probe(struct platform_device *pdev) pci->ops = &dw_pcie_ops; pp = &pci->pp; pp->num_vectors = MAX_MSI_IRQS; + pp->has_split_msi_irq = true; pcie->pci = pci;