From patchwork Wed Aug 28 14:14:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11119233 X-Patchwork-Delegate: bhelgaas@google.com 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 5A97614DE for ; Wed, 28 Aug 2019 14:15:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3B230233A1 for ; Wed, 28 Aug 2019 14:15:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="m8OwXvXw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726777AbfH1OPB (ORCPT ); Wed, 28 Aug 2019 10:15:01 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:34136 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726725AbfH1OPA (ORCPT ); Wed, 28 Aug 2019 10:15:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=iziR7QTvHIpOdYO2vSn6hrc74fDyyY3IA+Av3LG5GSY=; b=m8OwXvXwzFiA/j1r27uxGKTg90 zgJM+3IwN0c0/RkgHvSCE85Zd1+zUkeAVj6LUZ7YJuA9/iEhhAH3U8vd/ORy5TAxKB7yxAHyO0m9H iPXDiv2P1kywFypQRTCYRRiK0qA55DrFvkK/6sS9yKPtCYMectpiiJL2rCskSpLlI3gXBGXN9mkt+ PJgXyQOoSlw1MGp85SCHrAz9g5PguUE6yF7AO/wC3aFgC8B7IiBwMympsHNrfLZNbPqO9W7f5KUY7 +5HLIIQuOJ0IsJhqs9m8QXkl+SiQTARfwtLr/lle4kO7QLCuNfSOM4jxi7N/zUR+8VxjvOTWDTCgx KIfEGLVw==; Received: from [2001:4bb8:180:3f4c:863:2ead:e9d4:da9f] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1i2yiv-0000Tx-I5; Wed, 28 Aug 2019 14:14:58 +0000 From: Christoph Hellwig To: Keith Busch , "Derrick, Jonathan" Cc: x86@kernel.org, joro@8bytes.org, linux-pci@vger.kernel.org, bhelgaas@google.com, dwmw2@infradead.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/5] x86/pci: Replace the vmd_domain field with a vmd_dev pointer Date: Wed, 28 Aug 2019 16:14:41 +0200 Message-Id: <20190828141443.5253-4-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190828141443.5253-1-hch@lst.de> References: <20190828141443.5253-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Store the actual VMD device in struct pci_sysdata, so that we can later use it directly for DMA mappings. Signed-off-by: Christoph Hellwig --- arch/x86/include/asm/pci.h | 5 ++--- drivers/pci/controller/vmd.c | 2 +- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index 75fe28492290..a9bb4cdb66d4 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -25,7 +25,7 @@ struct pci_sysdata { void *fwnode; /* IRQ domain for MSI assignment */ #endif #if IS_ENABLED(CONFIG_VMD) - bool vmd_domain; /* True if in Intel VMD domain */ + struct device *vmd_dev; /* Main device if in Intel VMD domain */ #endif }; @@ -64,12 +64,11 @@ static inline void *_pci_root_bus_fwnode(struct pci_bus *bus) #if IS_ENABLED(CONFIG_VMD) static inline bool is_vmd(struct pci_bus *bus) { - return to_pci_sysdata(bus)->vmd_domain; + return to_pci_sysdata(bus)->vmd_dev != NULL; } #else #define is_vmd(bus) false #endif /* CONFIG_VMD */ -} /* Can be used to override the logic in pci_scan_bus for skipping already-configured bus numbers - to be used for buggy BIOSes diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c index 4575e0c6dc4b..785cb657c8c2 100644 --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -660,7 +660,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features) .parent = res, }; - sd->vmd_domain = true; + sd->vmd_dev = &vmd->dev->dev; sd->domain = vmd_find_free_domain(); if (sd->domain < 0) return sd->domain;