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 3EF75C433E1 for ; Fri, 21 Aug 2020 02:16:51 +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 14515207BB for ; Fri, 21 Aug 2020 02:16:51 +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="C0DH7n71"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ozcMcI+Z" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 14515207BB 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 E731C86CE5; Fri, 21 Aug 2020 02:16:50 +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 DMhiW3SfJwjX; Fri, 21 Aug 2020 02:16:50 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 77C2586CD2; Fri, 21 Aug 2020 02:16:50 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 6CBD6C0895; Fri, 21 Aug 2020 02:16:50 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 20E4BC0051 for ; Fri, 21 Aug 2020 02:16:48 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 06D8A86CE0 for ; Fri, 21 Aug 2020 02:16:48 +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 046glyH5oWGQ for ; Fri, 21 Aug 2020 02:16:47 +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 fraxinus.osuosl.org (Postfix) with ESMTPS id 34CE186CC1 for ; Fri, 21 Aug 2020 02:16:47 +0000 (UTC) Message-Id: <20200821002945.900916572@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1597976205; 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=oPLGYXskeh4/rvO1snnuNNIL8qDSVSv9t9JMacNnWYI=; b=C0DH7n71olL6OaMb6xCv5gAfA57y0QmW2I4o08cPmj0GOAOhOCaKnWIpKlOZm113g1QECQ MB4bck5wvdWs0pANVDcsAl+HOWRmntG9RJb6qJszHXuxYJv8/kUGPFXWYw8GMktd51/rFg XjdiTuWZw55z6IYYXYh8d7HPkihKPpkK9Q1cTO4GuytPsArOoJK/zZB9Wyv9rMl5XhjKRe mL1DBryNveNqFUgUCvc0WifpQskm8RT28ojrmG3wfiiw+HxioOsIZCkx1S7nvUCc4t/Smb +iJa6iuJUDKzAkLaigcCOQmypYCHfpq/3fSMYVM/XRTwddtOG7QIR93snAshRw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1597976205; 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=oPLGYXskeh4/rvO1snnuNNIL8qDSVSv9t9JMacNnWYI=; b=ozcMcI+ZbXw6YII64CpI8GaIQ1ifio0XwKEr5Vos+W3E9/tR8I879FwYP0xpqYlyXK+5b2 /x0IpmfwMOH4fYCg== Date: Fri, 21 Aug 2020 02:24:30 +0200 From: Thomas Gleixner To: LKML Subject: [patch RFC 06/38] iommu/amd: Consolidate irq domain getter References: <20200821002424.119492231@linutronix.de> MIME-Version: 1.0 Content-Disposition: inline; filename="iommu-amd--Condolidate-irq-domain-getter.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" The irq domain request mode is now indicated in irq_alloc_info::type. Consolidate the two getter functions into one. Signed-off-by: Thomas Gleixner Cc: Joerg Roedel Cc: iommu@lists.linux-foundation.org --- drivers/iommu/amd/iommu.c | 65 ++++++++++++++-------------------------------- 1 file changed, 21 insertions(+), 44 deletions(-) --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -3505,77 +3505,54 @@ static void irte_ga_clear_allocated(stru static int get_devid(struct irq_alloc_info *info) { - int devid = -1; - switch (info->type) { case X86_IRQ_ALLOC_TYPE_IOAPIC: - devid = get_ioapic_devid(info->ioapic_id); - break; + case X86_IRQ_ALLOC_TYPE_IOAPIC_GET_PARENT: + return get_ioapic_devid(info->ioapic_id); case X86_IRQ_ALLOC_TYPE_HPET: - devid = get_hpet_devid(info->hpet_id); - break; + case X86_IRQ_ALLOC_TYPE_HPET_GET_PARENT: + return get_hpet_devid(info->hpet_id); case X86_IRQ_ALLOC_TYPE_PCI_MSI: case X86_IRQ_ALLOC_TYPE_PCI_MSIX: - devid = get_device_id(&info->msi_dev->dev); - break; + return get_device_id(&info->msi_dev->dev); default: - BUG_ON(1); - break; + WARN_ON_ONCE(1); + return -1; } - - return devid; } -static struct irq_domain *get_ir_irq_domain(struct irq_alloc_info *info) +static struct irq_domain *get_irq_domain_for_devid(struct irq_alloc_info *info, + int devid) { - struct amd_iommu *iommu; - int devid; + struct amd_iommu *iommu = amd_iommu_rlookup_table[devid]; - if (!info) + if (!iommu) return NULL; switch (info->type) { case X86_IRQ_ALLOC_TYPE_IOAPIC_GET_PARENT: case X86_IRQ_ALLOC_TYPE_HPET_GET_PARENT: - break; + return iommu->ir_domain; + case X86_IRQ_ALLOC_TYPE_PCI_MSI: + case X86_IRQ_ALLOC_TYPE_PCI_MSIX: + return iommu->msi_domain; default: + WARN_ON_ONCE(1); return NULL; } - - devid = get_devid(info); - if (devid >= 0) { - iommu = amd_iommu_rlookup_table[devid]; - if (iommu) - return iommu->ir_domain; - } - - return NULL; } static struct irq_domain *get_irq_domain(struct irq_alloc_info *info) { - struct amd_iommu *iommu; int devid; if (!info) return NULL; - switch (info->type) { - case X86_IRQ_ALLOC_TYPE_PCI_MSI: - case X86_IRQ_ALLOC_TYPE_PCI_MSIX: - devid = get_device_id(&info->msi_dev->dev); - if (devid < 0) - return NULL; - - iommu = amd_iommu_rlookup_table[devid]; - if (iommu) - return iommu->msi_domain; - break; - default: - break; - } - - return NULL; + devid = get_devid(info); + if (devid < 0) + return NULL; + return get_irq_domain_for_devid(info, devid); } struct irq_remap_ops amd_iommu_irq_ops = { @@ -3584,7 +3561,7 @@ struct irq_remap_ops amd_iommu_irq_ops = .disable = amd_iommu_disable, .reenable = amd_iommu_reenable, .enable_faulting = amd_iommu_enable_faulting, - .get_ir_irq_domain = get_ir_irq_domain, + .get_ir_irq_domain = get_irq_domain, .get_irq_domain = get_irq_domain, }; _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu