From patchwork Fri Sep 11 09:33:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunihiko Hayashi X-Patchwork-Id: 11770065 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 91930159A for ; Fri, 11 Sep 2020 09:34:09 +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 600F221D40 for ; Fri, 11 Sep 2020 09:34:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="mi13GfcY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 600F221D40 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+patchwork-linux-arm=patchwork.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=Xkfu1tEZ1sZo4yN62AA55VofGNi8GXrY9Ixg9oyVwYI=; b=mi13GfcYbhet4ePZAJ48k/5WuH d2iAq5SE0WjoKc4lh5czYS9FkpxzjyzgtDt9dWgzsLUUWBfEQUH1+waVrt6nmOzhVM3A/9O2WCtzr q/od+ouZue19eAC04X1yENJYxjl6pWIUeeUH1fUYh8zcc3f8E6LC4ACBnTG/sJt/y/0afANGNa0OB bPZ67M8hca8n1bb1ZKeU32y2esh9TpOF5Ay7QR+8GizSWQIvTvYIjFx4B/Qoer7CQNXn2Ps0PRqmI 5IxpDKaW6w+yFmBVFNEUkXY2JuRSBs+smY1EcNniUEPxn7Lu2e0vpjHGdNe4MHu8mst+lh0j2w8Wy A4CrsUgA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kGfRO-00034d-2G; Fri, 11 Sep 2020 09:33:58 +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 1kGfRG-00032W-Nx for linux-arm-kernel@lists.infradead.org; Fri, 11 Sep 2020 09:33:51 +0000 Received: from unknown (HELO iyokan-ex.css.socionext.com) ([172.31.9.54]) by mx.socionext.com with ESMTP; 11 Sep 2020 18:33:49 +0900 Received: from mail.mfilter.local (m-filter-1 [10.213.24.61]) by iyokan-ex.css.socionext.com (Postfix) with ESMTP id C7E8B60060; Fri, 11 Sep 2020 18:33:49 +0900 (JST) Received: from 172.31.9.51 (172.31.9.51) by m-FILTER with ESMTP; Fri, 11 Sep 2020 18:33:49 +0900 Received: from plum.e01.socionext.com (unknown [10.213.132.32]) by kinkan.css.socionext.com (Postfix) with ESMTP id 672921A0507; Fri, 11 Sep 2020 18:33:49 +0900 (JST) From: Kunihiko Hayashi To: Bjorn Helgaas , Lorenzo Pieralisi , Jingoo Han , Gustavo Pimentel , Rob Herring , Marc Zyngier Subject: [PATCH v7 2/3] PCI: dwc: Add msi_host_isr() callback Date: Fri, 11 Sep 2020 18:33:33 +0900 Message-Id: <1599816814-16515-3-git-send-email-hayashi.kunihiko@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1599816814-16515-1-git-send-email-hayashi.kunihiko@socionext.com> References: <1599816814-16515-1-git-send-email-hayashi.kunihiko@socionext.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200911_053350_986722_8FFFD4AA X-CRM114-Status: GOOD ( 15.73 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 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 , Masami Hiramatsu , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Jassi Brar , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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 317ff51..f211510 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 8cbc902..68feb91 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -171,6 +171,7 @@ 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 {