From patchwork Thu Feb 4 17:28:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomasz Nowicki X-Patchwork-Id: 579044 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 5CFDE140B8C for ; Fri, 5 Feb 2016 04:29:33 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=semihalf-com.20150623.gappssmtp.com header.i=@semihalf-com.20150623.gappssmtp.com header.b=Ptzsgh/j; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966205AbcBDR3a (ORCPT ); Thu, 4 Feb 2016 12:29:30 -0500 Received: from mail-wm0-f54.google.com ([74.125.82.54]:32863 "EHLO mail-wm0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966198AbcBDR3W (ORCPT ); Thu, 4 Feb 2016 12:29:22 -0500 Received: by mail-wm0-f54.google.com with SMTP id g62so15093255wme.0 for ; Thu, 04 Feb 2016 09:29:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=DEotgPBCF8Tu5+FJ/SlJJpfvNPBkZmCSVc2MgIgUELI=; b=Ptzsgh/jlYSaP0rlaD6Pgaq0wpXRowXZjPqedyBQoVf/KganVXENFj4X2DuxHwQuhI zlN2rFphVMO22aSTCVrs/QxVoVuVT1bVrTcIU7hucfueTE692HkFNQBbKrlz/ZoHSewj 0AgiredEV8pg3XqCAxZTm3Modc8c9j6Z1XnvR150rbdgyRxS626B7rC1JhL/WsHxUUSm B3brDRkh0e+aQiaTTua+FTJO02/sp6d4utqw0khxM4zA85MJkHocH50h+Zzs0sK/iAEh R2BuoGsIWWsUkl56G/Hb6sPR4rlodqZf4HCUT1JSHi32bajmQOhhySev808fvqdMnIyI PNsQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=DEotgPBCF8Tu5+FJ/SlJJpfvNPBkZmCSVc2MgIgUELI=; b=KRFkFYGRADDT/JdzS5TxD0v5ifND2DrQnLDAdlFdB6O0D45Itgts8eMNlk+TPdu7ph f3+9YunSXeVlTXv5Bhuq2nc/sMrt8Vf8xpPAb/PB+4/wXOK4smbdXO6fyeISVxDJBX5Y tMlINlfa8caTjcWQgN/WUIJRzBdLo13kgogGG/BldPvRGgzUxFNvDS/TKovIHiQpLpHJ chzDI0MohmbtzRqR5XJz0pjCJU3GGv8z3GHZ3xV4sna4a+/vV5qzpEFJjEzptdJo4T0L XUvtKJR7w+u73BzsxO9QNniUH0yMTYfutLGHxNSR5a2iZuyvtuRiLAOy0NCxb4FYllD+ e2xg== X-Gm-Message-State: AG10YOR2/nAI2enx4bCoQf81TY8OPTGIkn9+PVG5BJQvnE3s2dVwmzEuRImiVwT11UZu0g== X-Received: by 10.28.156.199 with SMTP id f190mr30918050wme.83.1454606961079; Thu, 04 Feb 2016 09:29:21 -0800 (PST) Received: from tn-HP-4.semihalf.local (cardhu.semihalf.com. [213.17.239.108]) by smtp.gmail.com with ESMTPSA id w8sm12238889wjx.21.2016.02.04.09.29.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 04 Feb 2016 09:29:20 -0800 (PST) From: Tomasz Nowicki To: bhelgaas@google.com, arnd@arndb.de, will.deacon@arm.com, catalin.marinas@arm.com, rjw@rjwysocki.net, hanjun.guo@linaro.org, Lorenzo.Pieralisi@arm.com, okaya@codeaurora.org, jiang.liu@linux.intel.com, Stefano.Stabellini@eu.citrix.com Cc: robert.richter@caviumnetworks.com, mw@semihalf.com, Liviu.Dudau@arm.com, ddaney@caviumnetworks.com, wangyijing@huawei.com, Suravee.Suthikulpanit@amd.com, msalter@redhat.com, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linaro-acpi@lists.linaro.org, jchandra@broadcom.com, jcm@redhat.com, Tomasz Nowicki Subject: [PATCH V4 12/23] x86, ia64, pci: Remove ACPI companion device from platform specific data. Date: Thu, 4 Feb 2016 18:28:50 +0100 Message-Id: <1454606941-9523-13-git-send-email-tn@semihalf.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1454606941-9523-1-git-send-email-tn@semihalf.com> References: <1454606941-9523-1-git-send-email-tn@semihalf.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Since PCI core code is setting ACPI companion device for us now, platform specific ACPI companion device setting turns out to be dead now. Therefore we can get rid of it, including related companion reference from PCI sysdata structure. Signed-off-by: Tomasz Nowicki Tested-by: Duc Dang Tested-by: Dongdong Liu Tested-by: Hanjun Guo Tested-by: Graeme Gregory Tested-by: Sinan Kaya Reviewed-by: Lorenzo Pieralisi --- arch/ia64/hp/common/sba_iommu.c | 2 +- arch/ia64/include/asm/pci.h | 1 - arch/ia64/pci/pci.c | 16 ---------------- arch/ia64/sn/kernel/io_acpi_init.c | 4 ++-- arch/x86/include/asm/pci.h | 3 --- arch/x86/pci/acpi.c | 17 ----------------- 6 files changed, 3 insertions(+), 40 deletions(-) diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index a6d6190..78e4444 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -1981,7 +1981,7 @@ sba_connect_bus(struct pci_bus *bus) if (PCI_CONTROLLER(bus)->iommu) return; - handle = acpi_device_handle(PCI_CONTROLLER(bus)->companion); + handle = acpi_device_handle(ACPI_COMPANION(bus->bridge)); if (!handle) return; diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h index 07039d1..5050748 100644 --- a/arch/ia64/include/asm/pci.h +++ b/arch/ia64/include/asm/pci.h @@ -65,7 +65,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus, #define pci_legacy_write platform_pci_legacy_write struct pci_controller { - struct acpi_device *companion; void *iommu; int segment; int node; /* nearest node with memory or NUMA_NO_NODE for global allocation */ diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 8f6ac2f..978d6af 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -301,28 +301,12 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) } info->controller.segment = root->segment; - info->controller.companion = device; info->controller.node = acpi_get_node(device->handle); INIT_LIST_HEAD(&info->io_resources); return acpi_pci_root_create(root, &pci_acpi_root_ops, &info->common, &info->controller); } -int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) -{ - /* - * We pass NULL as parent to pci_create_root_bus(), so if it is not NULL - * here, pci_create_root_bus() has been called by someone else and - * sysdata is likely to be different from what we expect. Let it go in - * that case. - */ - if (!bridge->dev.parent) { - struct pci_controller *controller = bridge->bus->sysdata; - ACPI_COMPANION_SET(&bridge->dev, controller->companion); - } - return 0; -} - void pcibios_fixup_device_resources(struct pci_dev *dev) { int idx; diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c index 0640739..bcfddc2 100644 --- a/arch/ia64/sn/kernel/io_acpi_init.c +++ b/arch/ia64/sn/kernel/io_acpi_init.c @@ -132,7 +132,7 @@ sn_get_bussoft_ptr(struct pci_bus *bus) struct acpi_resource_vendor_typed *vendor; - handle = acpi_device_handle(PCI_CONTROLLER(bus)->companion); + handle = acpi_device_handle(ACPI_COMPANION(bus->bridge)); status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS, &sn_uuid, &buffer); if (ACPI_FAILURE(status)) { @@ -360,7 +360,7 @@ sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info, acpi_status status; struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - rootbus_handle = acpi_device_handle(PCI_CONTROLLER(dev)->companion); + rootbus_handle = acpi_device_handle(ACPI_COMPANION(dev->bus->bridge)); status = acpi_evaluate_integer(rootbus_handle, METHOD_NAME__SEG, NULL, &segment); if (ACPI_SUCCESS(status)) { diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index 4625943..a98c022 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -14,9 +14,6 @@ struct pci_sysdata { int domain; /* PCI domain */ int node; /* NUMA node */ -#ifdef CONFIG_ACPI - struct acpi_device *companion; /* ACPI companion device */ -#endif #ifdef CONFIG_X86_64 void *iommu; /* IOMMU private data */ #endif diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 8e89921..d5086d1 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -341,7 +341,6 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) struct pci_sysdata sd = { .domain = domain, .node = node, - .companion = root->device }; memcpy(bus->sysdata, &sd, sizeof(sd)); @@ -356,7 +355,6 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) else { info->sd.domain = domain; info->sd.node = node; - info->sd.companion = root->device; bus = acpi_pci_root_create(root, &acpi_pci_root_ops, &info->common, &info->sd); } @@ -374,21 +372,6 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) return bus; } -int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) -{ - /* - * We pass NULL as parent to pci_create_root_bus(), so if it is not NULL - * here, pci_create_root_bus() has been called by someone else and - * sysdata is likely to be different from what we expect. Let it go in - * that case. - */ - if (!bridge->dev.parent) { - struct pci_sysdata *sd = bridge->bus->sysdata; - ACPI_COMPANION_SET(&bridge->dev, sd->companion); - } - return 0; -} - int __init pci_acpi_init(void) { struct pci_dev *dev = NULL;