From patchwork Tue Mar 10 11:35:17 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomasz Nowicki X-Patchwork-Id: 5976721 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id A4AEC9F318 for ; Tue, 10 Mar 2015 11:40:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id ABC8620225 for ; Tue, 10 Mar 2015 11:40:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C3E3F201F5 for ; Tue, 10 Mar 2015 11:40:20 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YVITK-0003vI-Qp; Tue, 10 Mar 2015 11:37:14 +0000 Received: from mail-la0-f52.google.com ([209.85.215.52]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YVIRS-0001Yc-L7 for linux-arm-kernel@lists.infradead.org; Tue, 10 Mar 2015 11:35:19 +0000 Received: by labgd6 with SMTP id gd6so956095lab.6 for ; Tue, 10 Mar 2015 04:34:52 -0700 (PDT) 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=X3fbTDS1Z5OhmayV6CGUYojWxWbPqc3FlmX2jJEe2Ds=; b=K98+lSImkL7epQapTwhQ3z7/blhtNA5K5fKdgEgTFrxqSqmduPbGWhQJc7rZc32xsW j2UD1tlW4xEqgBPqrBxwwvPCLY+D9Jzb+aNqu/JouYbA6D1YYbzJ1JJDrl3DlwhJ/oFv 9VJ1gIeGUAbwMp1p2a6p6XHEMZww/34KY2OBpjDa2FEBojpBYKD+NzXlB9HItt7Q/UEf e78f+KPngJsTxHYEeLjOu1CJP5PJxBIFbYJlySkQo8TgJ3NY2yQP8pRvDVGlxT4eIzgV 0OZuhaP4C4xQsyfMD+2SoLyUHVFqBFELJP/0z/ZSF9Gu9owTr6Wj+JJuDyKvJjGxZ+Qp LmFQ== X-Gm-Message-State: ALoCoQkrVF1P7oTPStBPKMhVqu0z1NQfEA6uT/ZefMWU23z6kqT6/8qiMBoNE1LfArXgPCdpZenL X-Received: by 10.152.170.164 with SMTP id an4mr15209421lac.9.1425987292105; Tue, 10 Mar 2015 04:34:52 -0700 (PDT) Received: from tn-HP-4.semihalf.com (cardhu.semihalf.com. [213.17.239.108]) by mx.google.com with ESMTPSA id n12sm57206lbg.31.2015.03.10.04.34.46 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 10 Mar 2015 04:34:51 -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 Subject: [PATCH v3 6/9] x86, pci: mmconfig_{32, 64}.c code refactoring - remove code duplication. Date: Tue, 10 Mar 2015 12:35:17 +0100 Message-Id: <1425987320-15020-7-git-send-email-tomasz.nowicki@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1425987320-15020-1-git-send-email-tomasz.nowicki@linaro.org> References: <1425987320-15020-1-git-send-email-tomasz.nowicki@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150310_043518_947863_54DF7E42 X-CRM114-Status: GOOD ( 13.74 ) X-Spam-Score: -0.7 (/) Cc: linaro-acpi@lists.linaro.org, linux-pci@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, Tomasz Nowicki , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 */