From patchwork Wed Apr 27 12:16:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 12828739 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 5364CC4167B for ; Wed, 27 Apr 2022 12:17:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233660AbiD0MUM (ORCPT ); Wed, 27 Apr 2022 08:20:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49120 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233650AbiD0MUL (ORCPT ); Wed, 27 Apr 2022 08:20:11 -0400 Received: from mail-lj1-x231.google.com (mail-lj1-x231.google.com [IPv6:2a00:1450:4864:20::231]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3D044E399 for ; Wed, 27 Apr 2022 05:16:58 -0700 (PDT) Received: by mail-lj1-x231.google.com with SMTP id m23so2438071ljc.0 for ; Wed, 27 Apr 2022 05:16:58 -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=CDwkASM9CJ+e3T14sU+DD4Z2q62VFhOP6cklNoMqPXY=; b=KVIRDFfLSktU7040Coot+RXVSwwubG2+Pn+rFcEQhUipFAemxw1d3VfshnYEjlXng4 1i5IRcyOGalP0RNAl5pLei00N3+2omfu7YuJmzJlRUdu1iThhIHgK+0hgjhddkYJQfEw ISiRtGhBrgb+e//HhqxN7Irz9h8pdXMmFccvJ06zAqHdP7lLdkhhMqkk10dwRzUBOXid xUxmdzwweqsGjgGWibVP4dsrhhv+NhdN65rM3ZehDFvNFn3Yc0WNqUs5p7o7AkoKo5Ar I//3qtusK7zFGIea1yGuVjqszwQIiiz0WWEJ5KhPkeKuZ/Vqj/ff1dtwPBudutPOWgpf xgIA== 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=CDwkASM9CJ+e3T14sU+DD4Z2q62VFhOP6cklNoMqPXY=; b=WKYq4hvrATiYce4ZR+6T+GAAWMzOAML01DYQrgi7XmFJro3Mh3L3ZLbRUxpcfXKxSI zxADAhg7oWTRv1KwhxP6Z8CwJu/VubSBUdjHMU35XG1D0gYQNZwHFVdwIN95Fop0uJum 16vZxIJlu3vxlosX34+4oyNMldDRCdoSunHqdhdV0ny8oBycA7zK8bJY145BD4hiax1+ 0rZ+mgkj3Rhn2O0kjPzCmg+pYpez7aFGnld1dI1MNpKIORkQHQFlmoEXy13QgcxVgWJS kg65mVZCWIOMw+BRbml2OrXC9Hgmy3ncIMn0VO0PY75yWFyU9x8QUuvQhH/vTcvRc7hv 5kpg== X-Gm-Message-State: AOAM532y791Mtn4pkQsGWp69r4vsDWXvvQjcys+Ie2RzkeVGj5rsJPrM EStkjzRj4tCsnLwfkmDgkqWSwg== X-Google-Smtp-Source: ABdhPJyycJt5QR0vtMnqMrJS3i3LDRRlGgCa/kL6ZdRFitrf7dD5KGT2aZbPB7vjCEJlXtLZezs0Fw== X-Received: by 2002:a05:651c:332:b0:24f:1312:9add with SMTP id b18-20020a05651c033200b0024f13129addmr9076644ljp.320.1651061816812; Wed, 27 Apr 2022 05:16:56 -0700 (PDT) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id y1-20020a0565123f0100b0044584339e5dsm2043388lfa.190.2022.04.27.05.16.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Apr 2022 05:16:56 -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 1/5] PCI: dwc: Convert msi_irq to the array Date: Wed, 27 Apr 2022 15:16:49 +0300 Message-Id: <20220427121653.3158569-2-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 Qualcomm version of DWC PCIe controller supports more than 32 MSI interrupts, but they are routed to separate interrupts in groups of 32 vectors. To support such configuration, change the msi_irq field into an array. Let the DWC core handle all interrupts that were set in this array. Signed-off-by: Dmitry Baryshkov --- drivers/pci/controller/dwc/pci-dra7xx.c | 2 +- drivers/pci/controller/dwc/pci-exynos.c | 2 +- .../pci/controller/dwc/pcie-designware-host.c | 30 +++++++++++-------- drivers/pci/controller/dwc/pcie-designware.h | 2 +- drivers/pci/controller/dwc/pcie-keembay.c | 2 +- drivers/pci/controller/dwc/pcie-spear13xx.c | 2 +- drivers/pci/controller/dwc/pcie-tegra194.c | 2 +- 7 files changed, 24 insertions(+), 18 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c index dfcdeb432dc8..0919c96dcdbd 100644 --- a/drivers/pci/controller/dwc/pci-dra7xx.c +++ b/drivers/pci/controller/dwc/pci-dra7xx.c @@ -483,7 +483,7 @@ static int dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx, return pp->irq; /* MSI IRQ is muxed */ - pp->msi_irq = -ENODEV; + pp->msi_irq[0] = -ENODEV; ret = dra7xx_pcie_init_irq_domain(pp); if (ret < 0) diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c index 467c8d1cd7e4..4f2010bd9cd7 100644 --- a/drivers/pci/controller/dwc/pci-exynos.c +++ b/drivers/pci/controller/dwc/pci-exynos.c @@ -292,7 +292,7 @@ static int exynos_add_pcie_port(struct exynos_pcie *ep, } pp->ops = &exynos_pcie_host_ops; - pp->msi_irq = -ENODEV; + pp->msi_irq[0] = -ENODEV; ret = dw_pcie_host_init(pp); if (ret) { diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 2fa86f32d964..5d90009a0f73 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -257,8 +257,11 @@ int dw_pcie_allocate_domains(struct pcie_port *pp) static void dw_pcie_free_msi(struct pcie_port *pp) { - if (pp->msi_irq) - irq_set_chained_handler_and_data(pp->msi_irq, NULL, NULL); + u32 ctrl; + + for (ctrl = 0; ctrl < MAX_MSI_CTRLS; ctrl++) + if (pp->msi_irq[ctrl]) + irq_set_chained_handler_and_data(pp->msi_irq[ctrl], NULL, NULL); irq_domain_remove(pp->msi_domain); irq_domain_remove(pp->irq_domain); @@ -368,13 +371,15 @@ int dw_pcie_host_init(struct pcie_port *pp) for (ctrl = 0; ctrl < num_ctrls; ctrl++) pp->irq_mask[ctrl] = ~0; - if (!pp->msi_irq) { - pp->msi_irq = platform_get_irq_byname_optional(pdev, "msi"); - if (pp->msi_irq < 0) { - pp->msi_irq = platform_get_irq(pdev, 0); - if (pp->msi_irq < 0) - return pp->msi_irq; + if (!pp->msi_irq[0]) { + int irq = platform_get_irq_byname_optional(pdev, "msi"); + + if (irq < 0) { + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; } + pp->msi_irq[0] = irq; } pp->msi_irq_chip = &dw_pci_msi_bottom_irq_chip; @@ -383,10 +388,11 @@ int dw_pcie_host_init(struct pcie_port *pp) if (ret) return ret; - if (pp->msi_irq > 0) - irq_set_chained_handler_and_data(pp->msi_irq, - dw_chained_msi_isr, - pp); + for (ctrl = 0; ctrl < num_ctrls; ctrl++) + if (pp->msi_irq[ctrl] > 0) + irq_set_chained_handler_and_data(pp->msi_irq[ctrl], + dw_chained_msi_isr, + pp); ret = dma_set_mask(pci->dev, DMA_BIT_MASK(32)); if (ret) diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 7d6e9b7576be..9c1a38b0a6b3 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -187,7 +187,7 @@ struct pcie_port { u32 io_size; int irq; const struct dw_pcie_host_ops *ops; - int msi_irq; + int msi_irq[MAX_MSI_CTRLS]; struct irq_domain *irq_domain; struct irq_domain *msi_domain; u16 msi_msg; diff --git a/drivers/pci/controller/dwc/pcie-keembay.c b/drivers/pci/controller/dwc/pcie-keembay.c index 1ac29a6eef22..297e6e926c00 100644 --- a/drivers/pci/controller/dwc/pcie-keembay.c +++ b/drivers/pci/controller/dwc/pcie-keembay.c @@ -338,7 +338,7 @@ static int keembay_pcie_add_pcie_port(struct keembay_pcie *pcie, int ret; pp->ops = &keembay_pcie_host_ops; - pp->msi_irq = -ENODEV; + pp->msi_irq[0] = -ENODEV; ret = keembay_pcie_setup_msi_irq(pcie); if (ret) diff --git a/drivers/pci/controller/dwc/pcie-spear13xx.c b/drivers/pci/controller/dwc/pcie-spear13xx.c index 1569e82b5568..cc7776833810 100644 --- a/drivers/pci/controller/dwc/pcie-spear13xx.c +++ b/drivers/pci/controller/dwc/pcie-spear13xx.c @@ -172,7 +172,7 @@ static int spear13xx_add_pcie_port(struct spear13xx_pcie *spear13xx_pcie, } pp->ops = &spear13xx_pcie_host_ops; - pp->msi_irq = -ENODEV; + pp->msi_irq[0] = -ENODEV; ret = dw_pcie_host_init(pp); if (ret) { diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index b1b5f836a806..e75712db85b0 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -2271,7 +2271,7 @@ static void tegra194_pcie_shutdown(struct platform_device *pdev) disable_irq(pcie->pci.pp.irq); if (IS_ENABLED(CONFIG_PCI_MSI)) - disable_irq(pcie->pci.pp.msi_irq); + disable_irq(pcie->pci.pp.msi_irq[0]); tegra194_pcie_pme_turnoff(pcie); tegra_pcie_unconfig_controller(pcie);