From patchwork Wed Oct 28 01:31:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunihiko Hayashi X-Patchwork-Id: 11862275 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 293ABC388F9 for ; Wed, 28 Oct 2020 01:32:43 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CDEF420719 for ; Wed, 28 Oct 2020 01:32:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Oj0+bMbh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CDEF420719 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=socionext.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NZyoc3XmG1gMbDMRjO8HUE7OszYXqdQ2kC6RbLEVgWA=; b=Oj0+bMbh9gMashwDwFQqIQ1CA+ h2AespsS6nmYP45i/ygljste3cghT81eenvuiyVNZAvDPQ49U8n4x9xuYCHck0jxIulSVWjNM5ZbW qblg9inomKFRpCXJHKK7lhqenWpm6NB0Z11x8+t+Spz6ayF4qnMb0K0DphTk5e9mH8PnQXfa9ru/I /cqzjWqlC30cC4Ek4VCGrOxvzZjwWtYmILo8CtUBuh5XmQ+ozCs7vbwOD3ui7ALjfksyDDBtib6sv ppqwvnXW2Z2n5eOmMuOdfPVqGa4YU7t+CdOFXBYu6OxBkDrLL1FzQFofEqQKmpRiyocq1KKWtKxS6 Bue2eKWw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kXaK0-00034B-54; Wed, 28 Oct 2020 01:32:16 +0000 Received: from mx.socionext.com ([202.248.49.38]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kXaJo-000319-Ju for linux-arm-kernel@lists.infradead.org; Wed, 28 Oct 2020 01:32:06 +0000 Received: from unknown (HELO kinkan-ex.css.socionext.com) ([172.31.9.52]) by mx.socionext.com with ESMTP; 28 Oct 2020 10:31:59 +0900 Received: from mail.mfilter.local (m-filter-1 [10.213.24.61]) by kinkan-ex.css.socionext.com (Postfix) with ESMTP id 491AE180C13; Wed, 28 Oct 2020 10:31:56 +0900 (JST) Received: from 172.31.9.51 (172.31.9.51) by m-FILTER with ESMTP; Wed, 28 Oct 2020 10:31:56 +0900 Received: from plum.e01.socionext.com (unknown [10.213.132.32]) by kinkan.css.socionext.com (Postfix) with ESMTP id A7A4E1A0509; Wed, 28 Oct 2020 10:31:55 +0900 (JST) From: Kunihiko Hayashi To: Bjorn Helgaas , Rob Herring , Lorenzo Pieralisi , Jingoo Han , Gustavo Pimentel , Marc Zyngier Subject: [PATCH v8 2/3] PCI: dwc: Add msi_host_isr() callback Date: Wed, 28 Oct 2020 10:31:42 +0900 Message-Id: <1603848703-21099-3-git-send-email-hayashi.kunihiko@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1603848703-21099-1-git-send-email-hayashi.kunihiko@socionext.com> References: <1603848703-21099-1-git-send-email-hayashi.kunihiko@socionext.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201027_213205_073697_C193C7D9 X-CRM114-Status: GOOD ( 17.52 ) 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: Kunihiko Hayashi , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Jassi Brar , Masami Hiramatsu , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This adds msi_host_isr() callback function support to describe SoC-dependent service triggered by MSI. For example, when AER interrupt is triggered by MSI, the callback function reads SoC-dependent registers and detects that the interrupt is from AER, and invoke AER interrupts related to MSI. Cc: Marc Zyngier Cc: Jingoo Han Cc: Gustavo Pimentel Signed-off-by: Kunihiko Hayashi Acked-by: Gustavo Pimentel Reviewed-by: Rob Herring --- drivers/pci/controller/dwc/pcie-designware-host.c | 3 +++ drivers/pci/controller/dwc/pcie-designware.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 674f32d..45eea6f 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -61,6 +61,9 @@ irqreturn_t dw_handle_msi_irq(struct pcie_port *pp) irqreturn_t ret = IRQ_NONE; struct dw_pcie *pci = to_dw_pcie_from_pp(pp); + if (pp->ops->msi_host_isr) + pp->ops->msi_host_isr(pp); + num_ctrls = pp->num_vectors / MAX_MSI_IRQS_PER_CTRL; for (i = 0; i < num_ctrls; i++) { diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 9d2f511..2ce3133 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -176,6 +176,7 @@ struct dw_pcie_host_ops { int (*host_init)(struct pcie_port *pp); void (*set_num_vectors)(struct pcie_port *pp); int (*msi_host_init)(struct pcie_port *pp); + void (*msi_host_isr)(struct pcie_port *pp); }; struct pcie_port {