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=-6.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 4419CC433F4 for ; Fri, 21 Aug 2020 02:17:23 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 1A2E52075E for ; Fri, 21 Aug 2020 02:17:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="oIYWpA1m"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="y7HPmfdR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1A2E52075E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 077BF86CE4; Fri, 21 Aug 2020 02:17:23 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DUT3gYTX0QvE; Fri, 21 Aug 2020 02:17:21 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 61E9086CC5; Fri, 21 Aug 2020 02:17:21 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 4E873C0894; Fri, 21 Aug 2020 02:17:21 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 63385C0051 for ; Fri, 21 Aug 2020 02:17:18 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 59D3222E96 for ; Fri, 21 Aug 2020 02:17:18 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SF4ciy8MHqlS for ; Fri, 21 Aug 2020 02:17:15 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by silver.osuosl.org (Postfix) with ESMTPS id D5C1522FC6 for ; Fri, 21 Aug 2020 02:17:14 +0000 (UTC) Message-Id: <20200821002948.088290046@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1597976233; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=I+1xcnxpEKwhL/2w1Df+4sJP4BV3gtVsGmDq2fpteQU=; b=oIYWpA1mK705vLgr0Pi3yvIwVY/JzWY6Zt8eNLdc9jL4sFmxDIPaDT052QDL9CckTVPM90 ZJFVX+4ngFjF7amPFN2+FS286alUpCex1etIdfZMLu3UkN838sMfFVP0p9U+LvWeLaFf4H c430ZjWUmX5nUQYzWohUSa6CuOGYMSjpRHgRts7syQ5WyxJsiaxhIEb+Eu7E/PNmrdbAMp 3Ik2FRwKvXFNm3om2igSs17GeofXgRc9iO+IqgqsxsibgkiIu3rvoltPIw81/AdpfrI2z7 3nVAGJCOveCRgWSFYxa1YH+plh0xnrK9Ay0dTd3vL9eLDlz7E/nTv3YxqgsSXQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1597976233; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=I+1xcnxpEKwhL/2w1Df+4sJP4BV3gtVsGmDq2fpteQU=; b=y7HPmfdRFAGEjH7N5iAux5Kp3SKyHIxKVvhZ7t+Z4q47rqymbpcW2zB+eSXhv48NUWrhBJ vhIQMjF0CardtkBA== Date: Fri, 21 Aug 2020 02:24:52 +0200 From: Thomas Gleixner To: LKML Subject: [patch RFC 28/38] iommm/amd: Store irq domain in struct device References: <20200821002424.119492231@linutronix.de> MIME-Version: 1.0 Content-Disposition: inline; filename="iommm-amd--Store-irq-domain-in-struct-device.patch" Cc: Dimitri Sivanich , linux-hyperv@vger.kernel.org, Steve Wahl , linux-pci@vger.kernel.org, "K. Y. Srinivasan" , Dan Williams , Wei Liu , Stephen Hemminger , Baolu Lu , Marc Zyngier , x86@kernel.org, Jason Gunthorpe , Megha Dey , xen-devel@lists.xenproject.org, Kevin Tian , Konrad Rzeszutek Wilk , Haiyang Zhang , Alex Williamson , Stefano Stabellini , Bjorn Helgaas , Dave Jiang , Boris Ostrovsky , Jonathan Derrick , Juergen Gross , Russ Anderson , Greg Kroah-Hartman , iommu@lists.linux-foundation.org, Jacob Pan , "Rafael J. Wysocki" 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" As the next step to make X86 utilize the direct MSI irq domain operations store the irq domain pointer in the device struct when a device is probed. It only overrides the irqdomain of devices which are handled by a regular PCI/MSI irq domain which protects PCI devices behind special busses like VMD which have their own irq domain. No functional change. It just avoids the redirection through arch_*_msi_irqs() and allows the PCI/MSI core to directly invoke the irq domain alloc/free functions instead of having to look up the irq domain for every single MSI interupt. Signed-off-by: Thomas Gleixner Cc: Joerg Roedel Cc: iommu@lists.linux-foundation.org --- drivers/iommu/amd/iommu.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -729,7 +729,21 @@ static void iommu_poll_ga_log(struct amd } } } -#endif /* CONFIG_IRQ_REMAP */ + +static void +amd_iommu_set_pci_msi_domain(struct device *dev, struct amd_iommu *iommu) +{ + if (!irq_remapping_enabled || !dev_is_pci(dev) || + pci_dev_has_special_msi_domain(to_pci_dev(dev))) + return; + + dev_set_msi_domain(dev, iommu->msi_domain); +} + +#else /* CONFIG_IRQ_REMAP */ +static inline void +amd_iommu_set_pci_msi_domain(struct device *dev, struct amd_iommu *iommu) { } +#endif /* !CONFIG_IRQ_REMAP */ #define AMD_IOMMU_INT_MASK \ (MMIO_STATUS_EVT_INT_MASK | \ @@ -2157,6 +2171,7 @@ static struct iommu_device *amd_iommu_pr iommu_dev = ERR_PTR(ret); iommu_ignore_device(dev); } else { + amd_iommu_set_pci_msi_domain(dev, iommu); iommu_dev = &iommu->iommu; } _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu