From patchwork Wed Mar 11 14:12:46 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomasz Nowicki X-Patchwork-Id: 45664 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-lb0-f199.google.com (mail-lb0-f199.google.com [209.85.217.199]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id 18E9A214BF for ; Wed, 11 Mar 2015 14:15:09 +0000 (UTC) Received: by lbdu14 with SMTP id u14sf6968287lbd.3 for ; Wed, 11 Mar 2015 07:15:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:delivered-to:from:to:cc:subject :date:message-id:in-reply-to:references:sender:precedence:list-id :x-original-sender:x-original-authentication-results:mailing-list :list-post:list-help:list-archive:list-unsubscribe; bh=+3KM5V7t7NAGJxVPB8V1/Ptp1142XBwWxK1n/jcC00A=; b=RiMwuLLsS/p0v5eK4iccgS78GKRElTu04QMhgExbV8H4JEfnFXcoO9x3codkxc/rZW eRIWlHcJUSt2/B2pn3b4tMIj0gv081tcG7F2tuZY+sLZTCCw2yP3qLk84RK0sp0s2YCY jKh33dhQu018li3fflEap0Iq58LlNRjrlWsGJhwlIJxNnmd18QGrBaO7MF8ijy7dZWyj jybCzig10svSawF0edlTiGtHC8P9V0PQnCeqHhURroaR15mHQs/tU6MNw0bBibA1l8bm dlHVbOLP6pkKuBOvL2HQh0gq8vHVSQVLosZaZxagwsZE7QvWtPOOEqo3HzbxaOGXJuL3 wHYg== X-Gm-Message-State: ALoCoQn6dFjbwQvJTvFh3rGNkiOrHKxG6vJWT9GsdonuWTUv6vFFSHJVn3kHwcDr0XGHdna5fReW X-Received: by 10.181.29.66 with SMTP id ju2mr8696361wid.1.1426083308011; Wed, 11 Mar 2015 07:15:08 -0700 (PDT) MIME-Version: 1.0 X-BeenThere: patchwork-forward@linaro.org Received: by 10.152.21.33 with SMTP id s1ls193950lae.40.gmail; Wed, 11 Mar 2015 07:15:07 -0700 (PDT) X-Received: by 10.112.175.7 with SMTP id bw7mr34983352lbc.15.1426083307749; Wed, 11 Mar 2015 07:15:07 -0700 (PDT) Received: from mail-lb0-f175.google.com (mail-lb0-f175.google.com. [209.85.217.175]) by mx.google.com with ESMTPS id lc11si2474795lac.26.2015.03.11.07.15.07 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Mar 2015 07:15:07 -0700 (PDT) Received-SPF: pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.217.175 as permitted sender) client-ip=209.85.217.175; Received: by lbdu14 with SMTP id u14so9197962lbd.0 for ; Wed, 11 Mar 2015 07:15:07 -0700 (PDT) X-Received: by 10.112.64.193 with SMTP id q1mr34974352lbs.88.1426083307629; Wed, 11 Mar 2015 07:15:07 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patch@linaro.org Received: by 10.112.35.133 with SMTP id h5csp2806863lbj; Wed, 11 Mar 2015 07:15:06 -0700 (PDT) X-Received: by 10.70.90.161 with SMTP id bx1mr4455269pdb.146.1426083305266; Wed, 11 Mar 2015 07:15:05 -0700 (PDT) Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id bu12si7446167pdb.92.2015.03.11.07.15.04; Wed, 11 Mar 2015 07:15:05 -0700 (PDT) Received-SPF: none (google.com: linux-kernel-owner@vger.kernel.org does not designate permitted sender hosts) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753408AbbCKOPA (ORCPT + 28 others); Wed, 11 Mar 2015 10:15:00 -0400 Received: from mail-la0-f48.google.com ([209.85.215.48]:33849 "EHLO mail-la0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752522AbbCKOMt (ORCPT ); Wed, 11 Mar 2015 10:12:49 -0400 Received: by labgq15 with SMTP id gq15so9081420lab.1 for ; Wed, 11 Mar 2015 07:12:48 -0700 (PDT) X-Received: by 10.112.223.7 with SMTP id qq7mr34905714lbc.81.1426083168133; Wed, 11 Mar 2015 07:12:48 -0700 (PDT) Received: from tn-HP-4.semihalf.com (cardhu.semihalf.com. [213.17.239.108]) by mx.google.com with ESMTPSA id x4sm746600lba.22.2015.03.11.07.12.44 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 11 Mar 2015 07:12:46 -0700 (PDT) From: Tomasz Nowicki To: bhelgaas@google.com, wangyijing@huawei.com, arnd@arndb.de, hanjun.guo@linaro.org, Liviu.Dudau@arm.com, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, rjw@rjwysocki.net, al.stone@linaro.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, linaro-acpi@lists.linaro.org, Tomasz Nowicki Subject: [PATCH v4 6/9] x86, pci: mmconfig_{32, 64}.c code refactoring - remove code duplication. Date: Wed, 11 Mar 2015 15:12:46 +0100 Message-Id: <1426083169-8698-7-git-send-email-tomasz.nowicki@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1426083169-8698-1-git-send-email-tomasz.nowicki@linaro.org> References: <1426083169-8698-1-git-send-email-tomasz.nowicki@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: list List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: tomasz.nowicki@linaro.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.217.175 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , mmconfig_64.c version is going to be default implementation for arch agnostic low-level direct PCI config space accessors for ECAM dirver. However, now it initialize raw_pci_ext_ops pointer which is x86 specific code only. Moreover, mmconfig_32.c is doing the same thing at the same time. Move it to mmconfig_shared.c so it becomes common for both and mmconfig_64.c turns out to be purely arch agnostic. Signed-off-by: Tomasz Nowicki --- arch/x86/pci/mmconfig-shared.c | 10 ++++++++-- arch/x86/pci/mmconfig_32.c | 10 ++-------- arch/x86/pci/mmconfig_64.c | 11 ++--------- include/linux/ecam.h | 5 +++++ 4 files changed, 17 insertions(+), 19 deletions(-) diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c index 5064302..6dfe614 100644 --- a/arch/x86/pci/mmconfig-shared.c +++ b/arch/x86/pci/mmconfig-shared.c @@ -29,6 +29,11 @@ static bool pci_mmcfg_running_state; static bool pci_mmcfg_arch_init_failed; +const struct pci_raw_ops pci_mmcfg = { + .read = pci_mmcfg_read, + .write = pci_mmcfg_write, +}; + static u32 pci_mmconfig_amd_read(int len, void __iomem *addr) { @@ -532,9 +537,10 @@ static void __init __pci_mmcfg_init(int early) } } - if (pci_mmcfg_arch_init()) + if (pci_mmcfg_arch_init()) { + raw_pci_ext_ops = &pci_mmcfg; pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF; - else { + } else { free_all_mmcfg(); pci_mmcfg_arch_init_failed = true; } diff --git a/arch/x86/pci/mmconfig_32.c b/arch/x86/pci/mmconfig_32.c index 5cf6291..7a050cb 100644 --- a/arch/x86/pci/mmconfig_32.c +++ b/arch/x86/pci/mmconfig_32.c @@ -50,7 +50,7 @@ static void pci_exp_set_dev_base(unsigned int base, int bus, int devfn) } } -static int pci_mmcfg_read(unsigned int seg, unsigned int bus, +int pci_mmcfg_read(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 *value) { unsigned long flags; @@ -79,7 +79,7 @@ err: *value = -1; return 0; } -static int pci_mmcfg_write(unsigned int seg, unsigned int bus, +int pci_mmcfg_write(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 value) { unsigned long flags; @@ -106,15 +106,9 @@ static int pci_mmcfg_write(unsigned int seg, unsigned int bus, return 0; } -const struct pci_raw_ops pci_mmcfg = { - .read = pci_mmcfg_read, - .write = pci_mmcfg_write, -}; - int __init pci_mmcfg_arch_init(void) { printk(KERN_INFO "PCI: Using MMCONFIG for extended config space\n"); - raw_pci_ext_ops = &pci_mmcfg; return 1; } diff --git a/arch/x86/pci/mmconfig_64.c b/arch/x86/pci/mmconfig_64.c index b62ff18..fd857ea 100644 --- a/arch/x86/pci/mmconfig_64.c +++ b/arch/x86/pci/mmconfig_64.c @@ -25,7 +25,7 @@ static char __iomem *pci_dev_base(unsigned int seg, unsigned int bus, unsigned i return NULL; } -static int pci_mmcfg_read(unsigned int seg, unsigned int bus, +int pci_mmcfg_read(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 *value) { char __iomem *addr; @@ -49,7 +49,7 @@ err: *value = -1; return 0; } -static int pci_mmcfg_write(unsigned int seg, unsigned int bus, +int pci_mmcfg_write(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 value) { char __iomem *addr; @@ -71,11 +71,6 @@ static int pci_mmcfg_write(unsigned int seg, unsigned int bus, return 0; } -const struct pci_raw_ops pci_mmcfg = { - .read = pci_mmcfg_read, - .write = pci_mmcfg_write, -}; - static void __iomem *mcfg_ioremap(struct pci_mmcfg_region *cfg) { void __iomem *addr; @@ -101,8 +96,6 @@ int __init pci_mmcfg_arch_init(void) return 0; } - raw_pci_ext_ops = &pci_mmcfg; - return 1; } diff --git a/include/linux/ecam.h b/include/linux/ecam.h index 2387df5..fba5d6b 100644 --- a/include/linux/ecam.h +++ b/include/linux/ecam.h @@ -47,5 +47,10 @@ extern struct list_head pci_mmcfg_list; #define PCI_MMCFG_BUS_OFFSET(bus) ((bus) << 20) +int pci_mmcfg_read(unsigned int seg, unsigned int bus, + unsigned int devfn, int reg, int len, u32 *value); +int pci_mmcfg_write(unsigned int seg, unsigned int bus, + unsigned int devfn, int reg, int len, u32 value); + #endif /* __KERNEL__ */ #endif /* __ECAM_H */