From patchwork Thu Mar 23 17:36:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 666229 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5248FC6FD1C for ; Thu, 23 Mar 2023 17:36:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232119AbjCWRgZ (ORCPT ); Thu, 23 Mar 2023 13:36:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56482 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232131AbjCWRgE (ORCPT ); Thu, 23 Mar 2023 13:36:04 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1DEE2305DD; Thu, 23 Mar 2023 10:35:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679592945; x=1711128945; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vwh9ptbMJOXQlZJdSj8+frJlz0P5NOeD/IEPLf/bFeA=; b=mRYUFdKO5KD6Oo3woRFDzf1mDw5LcJM4x1FNascoUV1xaQbZYamqZrRK lW8NVodwQHIVjHxdDrMLkgqgygQ6/WL2u6T2H6ayOFJBoHm2vXr1ISKyj Fou6EcUDqBNSIy6D8CAlgqq/YPmQp3rrZ2RmL9/1IWyp8wgcGZFUG2/9x 7QXfxC3OjIXM5lmqSpJhcn0uWW+cGQD8aynhHKiLkY2U58RgC5sPfyhBt tXLg+XbUfyiVjhUoBoVgRp1yC9029wXK/m4X6aKmyMkf1AdiFVuf/PtQk B8WipFeqZJMpjjaiNQbpLZ0jcAXuHNIavwLaU94KzHbQpml1lzpOW3fjJ A==; X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="327969592" X-IronPort-AV: E=Sophos;i="5.98,285,1673942400"; d="scan'208";a="327969592" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Mar 2023 10:35:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="675794215" X-IronPort-AV: E=Sophos;i="5.98,285,1673942400"; d="scan'208";a="675794215" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga007.jf.intel.com with ESMTP; 23 Mar 2023 10:35:25 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id AF393D0; Thu, 23 Mar 2023 19:36:11 +0200 (EET) From: Andy Shevchenko To: =?utf-8?q?Micka=C3=ABl_Sala=C3=BCn?= , Andy Shevchenko , Mika Westerberg , =?utf-8?q?Krzysztof_Wilc?= =?utf-8?q?zy=C5=84ski?= , Michael Ellerman , Randy Dunlap , Arnd Bergmann , Niklas Schnelle , Bjorn Helgaas , "Rafael J. Wysocki" , =?utf-8?q?Pali_Roh=C3=A1r?= , "Maciej W. Rozycki" , Juergen Gross , Dominik Brodowski , linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org Cc: Miguel Ojeda , Richard Henderson , Ivan Kokshaysky , Matt Turner , Russell King , Andrew Lunn , Sebastian Hesselbarth , Gregory Clement , Thomas Bogendoerfer , Nicholas Piggin , Christophe Leroy , Anatolij Gustschin , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "David S. Miller" , Bjorn Helgaas , Stefano Stabellini , Oleksandr Tyshchenko Subject: [PATCH v7 1/6] kernel.h: Split out COUNT_ARGS() and CONCATENATE() Date: Thu, 23 Mar 2023 19:36:05 +0200 Message-Id: <20230323173610.60442-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1.gaa8946217a0b In-Reply-To: <20230323173610.60442-1-andriy.shevchenko@linux.intel.com> References: <20230323173610.60442-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org kernel.h is being used as a dump for all kinds of stuff for a long time. The COUNT_ARGS() and CONCATENATE() macros may be used in some places without need of the full kernel.h dependency train with it. Here is the attempt on cleaning it up by splitting out these macros(). Signed-off-by: Andy Shevchenko --- include/linux/args.h | 13 +++++++++++++ include/linux/kernel.h | 8 +------- 2 files changed, 14 insertions(+), 7 deletions(-) create mode 100644 include/linux/args.h diff --git a/include/linux/args.h b/include/linux/args.h new file mode 100644 index 000000000000..16ef6fad8add --- /dev/null +++ b/include/linux/args.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_ARGS_H +#define _LINUX_ARGS_H + +/* This counts to 12. Any more, it will return 13th argument. */ +#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n +#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) + +#define __CONCAT(a, b) a ## b +#define CONCATENATE(a, b) __CONCAT(a, b) + +#endif /* _LINUX_ARGS_H */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 40bce7495af8..c049d3394425 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -13,6 +13,7 @@ #include #include +#include #include #include #include @@ -484,13 +485,6 @@ ftrace_vprintk(const char *fmt, va_list ap) static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #endif /* CONFIG_TRACING */ -/* This counts to 12. Any more, it will return 13th argument. */ -#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n -#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) - -#define __CONCAT(a, b) a ## b -#define CONCATENATE(a, b) __CONCAT(a, b) - /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ #ifdef CONFIG_FTRACE_MCOUNT_RECORD # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD From patchwork Thu Mar 23 17:36:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 666227 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B77E5C6FD1C for ; Thu, 23 Mar 2023 17:37:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231300AbjCWRhJ (ORCPT ); Thu, 23 Mar 2023 13:37:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231772AbjCWRgU (ORCPT ); Thu, 23 Mar 2023 13:36:20 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EE9AB26C28; Thu, 23 Mar 2023 10:36:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679592965; x=1711128965; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=WpHE2fMg8kec8Dg0J6kxCepndOofEkKDEHEEamRzDGU=; b=GzGSjsSD3EA0o+EAfkQKtvsZ7JIFNc1MxQDrAvzJo4bvrUHTHwISZGcI R7NphjuZ9BL6xEV4n7IZLY+EdQCl4a5IwZTvKsYr8bp6AyW0TXyC5xZgL zqSnJg1LeIgSp7O4gGQZSaCUITBXRWLu7+ns0x2pYXBxAi0qHLIwM353P nyHImLnafguwDl49JhDKyv+c6ffHUNtf/kNm+5Iv5hVkQy/C13c7rffAz bTNI29aDK2vuvRhTXznr3sv1fxIokEB3n9c6o5WeIHj4nThpbIl0/5XyY hW4B9EDKf0Byi1DnRhs5xZfbiK0ouhN/oWCjvdoSp3o20h6N4oZoT2B/9 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="327969675" X-IronPort-AV: E=Sophos;i="5.98,285,1673942400"; d="scan'208";a="327969675" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Mar 2023 10:35:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="675794213" X-IronPort-AV: E=Sophos;i="5.98,285,1673942400"; d="scan'208";a="675794213" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga007.jf.intel.com with ESMTP; 23 Mar 2023 10:35:25 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id C8EA329D; Thu, 23 Mar 2023 19:36:11 +0200 (EET) From: Andy Shevchenko To: =?utf-8?q?Micka=C3=ABl_Sala=C3=BCn?= , Andy Shevchenko , Mika Westerberg , =?utf-8?q?Krzysztof_Wilc?= =?utf-8?q?zy=C5=84ski?= , Michael Ellerman , Randy Dunlap , Arnd Bergmann , Niklas Schnelle , Bjorn Helgaas , "Rafael J. Wysocki" , =?utf-8?q?Pali_Roh=C3=A1r?= , "Maciej W. Rozycki" , Juergen Gross , Dominik Brodowski , linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org Cc: Miguel Ojeda , Richard Henderson , Ivan Kokshaysky , Matt Turner , Russell King , Andrew Lunn , Sebastian Hesselbarth , Gregory Clement , Thomas Bogendoerfer , Nicholas Piggin , Christophe Leroy , Anatolij Gustschin , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "David S. Miller" , Bjorn Helgaas , Stefano Stabellini , Oleksandr Tyshchenko Subject: [PATCH v7 2/6] PCI: Introduce pci_dev_for_each_resource() Date: Thu, 23 Mar 2023 19:36:06 +0200 Message-Id: <20230323173610.60442-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1.gaa8946217a0b In-Reply-To: <20230323173610.60442-1-andriy.shevchenko@linux.intel.com> References: <20230323173610.60442-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Mika Westerberg Instead of open-coding it everywhere introduce a tiny helper that can be used to iterate over each resource of a PCI device, and convert the most obvious users into it. While at it drop doubled empty line before pdev_sort_resources(). No functional changes intended. Suggested-by: Andy Shevchenko Signed-off-by: Mika Westerberg Signed-off-by: Andy Shevchenko Reviewed-by: Krzysztof Wilczyński --- .clang-format | 1 + arch/alpha/kernel/pci.c | 5 ++-- arch/arm/kernel/bios32.c | 16 ++++++------- arch/arm/mach-dove/pcie.c | 10 ++++---- arch/arm/mach-mv78xx0/pcie.c | 10 ++++---- arch/arm/mach-orion5x/pci.c | 10 ++++---- arch/mips/pci/ops-bcm63xx.c | 8 +++---- arch/mips/pci/pci-legacy.c | 3 +-- arch/powerpc/kernel/pci-common.c | 21 ++++++++-------- arch/powerpc/platforms/4xx/pci.c | 8 +++---- arch/powerpc/platforms/52xx/mpc52xx_pci.c | 5 ++-- arch/powerpc/platforms/pseries/pci.c | 16 ++++++------- arch/sh/drivers/pci/pcie-sh7786.c | 10 ++++---- arch/sparc/kernel/leon_pci.c | 5 ++-- arch/sparc/kernel/pci.c | 10 ++++---- arch/sparc/kernel/pcic.c | 5 ++-- drivers/pci/remove.c | 5 ++-- drivers/pci/setup-bus.c | 27 ++++++++------------- drivers/pci/setup-res.c | 4 +--- drivers/pci/vgaarb.c | 17 ++++--------- drivers/pci/xen-pcifront.c | 4 +--- drivers/pnp/quirks.c | 29 ++++++++--------------- include/linux/pci.h | 16 +++++++++++++ 23 files changed, 113 insertions(+), 132 deletions(-) diff --git a/.clang-format b/.clang-format index d988e9fa9b26..2048b0296d76 100644 --- a/.clang-format +++ b/.clang-format @@ -520,6 +520,7 @@ ForEachMacros: - 'of_property_for_each_string' - 'of_property_for_each_u32' - 'pci_bus_for_each_resource' + - 'pci_dev_for_each_resource' - 'pci_doe_for_each_off' - 'pcl_for_each_chunk' - 'pcl_for_each_segment' diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 64fbfb0763b2..4458eb7f44f0 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -288,11 +288,10 @@ pcibios_claim_one_bus(struct pci_bus *b) struct pci_bus *child_bus; list_for_each_entry(dev, &b->devices, bus_list) { + struct resource *r; int i; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r = &dev->resource[i]; - + pci_dev_for_each_resource(dev, r, i) { if (r->parent || !r->start || !r->flags) continue; if (pci_has_flag(PCI_PROBE_ONLY) || diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index e7ef2b5bea9c..d334c7fb672b 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -142,15 +142,15 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_89C940F, */ static void pci_fixup_dec21285(struct pci_dev *dev) { - int i; - if (dev->devfn == 0) { + struct resource *r; + dev->class &= 0xff; dev->class |= PCI_CLASS_BRIDGE_HOST << 8; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - dev->resource[i].start = 0; - dev->resource[i].end = 0; - dev->resource[i].flags = 0; + pci_dev_for_each_resource(dev, r) { + r->start = 0; + r->end = 0; + r->flags = 0; } } } @@ -162,13 +162,11 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, pci_fixup_d static void pci_fixup_ide_bases(struct pci_dev *dev) { struct resource *r; - int i; if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) return; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - r = dev->resource + i; + pci_dev_for_each_resource(dev, r) { if ((r->start & ~0x80) == 0x374) { r->start |= 2; r->end = r->start; diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c index 754ca381f600..3044b7e03890 100644 --- a/arch/arm/mach-dove/pcie.c +++ b/arch/arm/mach-dove/pcie.c @@ -142,14 +142,14 @@ static struct pci_ops pcie_ops = { static void rc_pci_fixup(struct pci_dev *dev) { if (dev->bus->parent == NULL && dev->devfn == 0) { - int i; + struct resource *r; dev->class &= 0xff; dev->class |= PCI_CLASS_BRIDGE_HOST << 8; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - dev->resource[i].start = 0; - dev->resource[i].end = 0; - dev->resource[i].flags = 0; + pci_dev_for_each_resource(dev, r) { + r->start = 0; + r->end = 0; + r->flags = 0; } } } diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c index 6190f538a124..0ebc909ea273 100644 --- a/arch/arm/mach-mv78xx0/pcie.c +++ b/arch/arm/mach-mv78xx0/pcie.c @@ -186,14 +186,14 @@ static struct pci_ops pcie_ops = { static void rc_pci_fixup(struct pci_dev *dev) { if (dev->bus->parent == NULL && dev->devfn == 0) { - int i; + struct resource *r; dev->class &= 0xff; dev->class |= PCI_CLASS_BRIDGE_HOST << 8; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - dev->resource[i].start = 0; - dev->resource[i].end = 0; - dev->resource[i].flags = 0; + pci_dev_for_each_resource(dev, r) { + r->start = 0; + r->end = 0; + r->flags = 0; } } } diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c index 888fdc9099c5..3313bc5a63ea 100644 --- a/arch/arm/mach-orion5x/pci.c +++ b/arch/arm/mach-orion5x/pci.c @@ -522,14 +522,14 @@ static int __init pci_setup(struct pci_sys_data *sys) static void rc_pci_fixup(struct pci_dev *dev) { if (dev->bus->parent == NULL && dev->devfn == 0) { - int i; + struct resource *r; dev->class &= 0xff; dev->class |= PCI_CLASS_BRIDGE_HOST << 8; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - dev->resource[i].start = 0; - dev->resource[i].end = 0; - dev->resource[i].flags = 0; + pci_dev_for_each_resource(dev, r) { + r->start = 0; + r->end = 0; + r->flags = 0; } } } diff --git a/arch/mips/pci/ops-bcm63xx.c b/arch/mips/pci/ops-bcm63xx.c index dc6dc2741272..b0ea023c47c0 100644 --- a/arch/mips/pci/ops-bcm63xx.c +++ b/arch/mips/pci/ops-bcm63xx.c @@ -413,18 +413,18 @@ struct pci_ops bcm63xx_cb_ops = { static void bcm63xx_fixup(struct pci_dev *dev) { static int io_window = -1; - int i, found, new_io_window; + int found, new_io_window; + struct resource *r; u32 val; /* look for any io resource */ found = 0; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - if (pci_resource_flags(dev, i) & IORESOURCE_IO) { + pci_dev_for_each_resource(dev, r) { + if (resource_type(r) == IORESOURCE_IO) { found = 1; break; } } - if (!found) return; diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c index 468722c8a5c6..ec2567f8efd8 100644 --- a/arch/mips/pci/pci-legacy.c +++ b/arch/mips/pci/pci-legacy.c @@ -249,12 +249,11 @@ static int pcibios_enable_resources(struct pci_dev *dev, int mask) pci_read_config_word(dev, PCI_COMMAND, &cmd); old_cmd = cmd; - for (idx = 0; idx < PCI_NUM_RESOURCES; idx++) { + pci_dev_for_each_resource(dev, r, idx) { /* Only set up the requested stuff */ if (!(mask & (1<resource[idx]; if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM))) continue; if ((idx == PCI_ROM_RESOURCE) && diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index d67cf79bf5d0..e88d7c9feeec 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -880,6 +880,7 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) static void pcibios_fixup_resources(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct resource *res; int i; if (!hose) { @@ -891,9 +892,9 @@ static void pcibios_fixup_resources(struct pci_dev *dev) if (dev->is_virtfn) return; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - struct resource *res = dev->resource + i; + pci_dev_for_each_resource(dev, res, i) { struct pci_bus_region reg; + if (!res->flags) continue; @@ -1452,11 +1453,10 @@ void pcibios_claim_one_bus(struct pci_bus *bus) struct pci_bus *child_bus; list_for_each_entry(dev, &bus->devices, bus_list) { + struct resource *r; int i; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r = &dev->resource[i]; - + pci_dev_for_each_resource(dev, r, i) { if (r->parent || !r->start || !r->flags) continue; @@ -1705,19 +1705,20 @@ EXPORT_SYMBOL_GPL(pcibios_scan_phb); static void fixup_hide_host_resource_fsl(struct pci_dev *dev) { - int i, class = dev->class >> 8; + int class = dev->class >> 8; /* When configured as agent, programming interface = 1 */ int prog_if = dev->class & 0xf; + struct resource *r; if ((class == PCI_CLASS_PROCESSOR_POWERPC || class == PCI_CLASS_BRIDGE_OTHER) && (dev->hdr_type == PCI_HEADER_TYPE_NORMAL) && (prog_if == 0) && (dev->bus->parent == NULL)) { - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - dev->resource[i].start = 0; - dev->resource[i].end = 0; - dev->resource[i].flags = 0; + pci_dev_for_each_resource(dev, r) { + r->start = 0; + r->end = 0; + r->flags = 0; } } } diff --git a/arch/powerpc/platforms/4xx/pci.c b/arch/powerpc/platforms/4xx/pci.c index ca5dd7a5842a..07dcc2b8007f 100644 --- a/arch/powerpc/platforms/4xx/pci.c +++ b/arch/powerpc/platforms/4xx/pci.c @@ -57,7 +57,7 @@ static inline int ppc440spe_revA(void) static void fixup_ppc4xx_pci_bridge(struct pci_dev *dev) { struct pci_controller *hose; - int i; + struct resource *r; if (dev->devfn != 0 || dev->bus->self != NULL) return; @@ -79,9 +79,9 @@ static void fixup_ppc4xx_pci_bridge(struct pci_dev *dev) /* Hide the PCI host BARs from the kernel as their content doesn't * fit well in the resource management */ - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - dev->resource[i].start = dev->resource[i].end = 0; - dev->resource[i].flags = 0; + pci_dev_for_each_resource(dev, r) { + r->start = r->end = 0; + r->flags = 0; } printk(KERN_INFO "PCI: Hiding 4xx host bridge resources %s\n", diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/arch/powerpc/platforms/52xx/mpc52xx_pci.c index 859e2818c43d..0ca4401ba781 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_pci.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_pci.c @@ -327,14 +327,13 @@ mpc52xx_pci_setup(struct pci_controller *hose, static void mpc52xx_pci_fixup_resources(struct pci_dev *dev) { - int i; + struct resource *res; pr_debug("%s() %.4x:%.4x\n", __func__, dev->vendor, dev->device); /* We don't rely on boot loader for PCI and resets all devices */ - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - struct resource *res = &dev->resource[i]; + pci_dev_for_each_resource(dev, res) { if (res->end > res->start) { /* Only valid resources */ res->end -= res->start; res->start = 0; diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index 60e0a58928ef..1772ae3d193d 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -240,7 +240,7 @@ void __init pSeries_final_fixup(void) */ static void fixup_winbond_82c105(struct pci_dev* dev) { - int i; + struct resource *r; unsigned int reg; if (!machine_is(pseries)) @@ -251,14 +251,14 @@ static void fixup_winbond_82c105(struct pci_dev* dev) /* Enable LEGIRQ to use INTC instead of ISA interrupts */ pci_write_config_dword(dev, 0x40, reg | (1<<11)); - for (i = 0; i < DEVICE_COUNT_RESOURCE; ++i) { + pci_dev_for_each_resource(dev, r) { /* zap the 2nd function of the winbond chip */ - if (dev->resource[i].flags & IORESOURCE_IO - && dev->bus->number == 0 && dev->devfn == 0x81) - dev->resource[i].flags &= ~IORESOURCE_IO; - if (dev->resource[i].start == 0 && dev->resource[i].end) { - dev->resource[i].flags = 0; - dev->resource[i].end = 0; + if (dev->bus->number == 0 && dev->devfn == 0x81 && + r->flags & IORESOURCE_IO) + r->flags &= ~IORESOURCE_IO; + if (r->start == 0 && r->end) { + r->flags = 0; + r->end = 0; } } } diff --git a/arch/sh/drivers/pci/pcie-sh7786.c b/arch/sh/drivers/pci/pcie-sh7786.c index b0c2a5238d04..4f5e49f10805 100644 --- a/arch/sh/drivers/pci/pcie-sh7786.c +++ b/arch/sh/drivers/pci/pcie-sh7786.c @@ -140,12 +140,12 @@ static void sh7786_pci_fixup(struct pci_dev *dev) * Prevent enumeration of root complex resources. */ if (pci_is_root_bus(dev->bus) && dev->devfn == 0) { - int i; + struct resource *r; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - dev->resource[i].start = 0; - dev->resource[i].end = 0; - dev->resource[i].flags = 0; + pci_dev_for_each_resource(dev, r) { + r->start = 0; + r->end = 0; + r->flags = 0; } } } diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c index e5e5ff6b9a5c..b6663a3fbae9 100644 --- a/arch/sparc/kernel/leon_pci.c +++ b/arch/sparc/kernel/leon_pci.c @@ -62,15 +62,14 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) int pcibios_enable_device(struct pci_dev *dev, int mask) { + struct resource *res; u16 cmd, oldcmd; int i; pci_read_config_word(dev, PCI_COMMAND, &cmd); oldcmd = cmd; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *res = &dev->resource[i]; - + pci_dev_for_each_resource(dev, res, i) { /* Only set up the requested stuff */ if (!(mask & (1<devices, bus_list) { + struct resource *r; int i; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r = &dev->resource[i]; - + pci_dev_for_each_resource(dev, r, i) { if (r->parent || !r->start || !r->flags) continue; @@ -724,15 +723,14 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, int pcibios_enable_device(struct pci_dev *dev, int mask) { + struct resource *res; u16 cmd, oldcmd; int i; pci_read_config_word(dev, PCI_COMMAND, &cmd); oldcmd = cmd; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *res = &dev->resource[i]; - + pci_dev_for_each_resource(dev, res, i) { /* Only set up the requested stuff */ if (!(mask & (1<resource[i]; - + pci_dev_for_each_resource(dev, res, i) { /* Only set up the requested stuff */ if (!(mask & (1<resource + i; + pci_dev_for_each_resource(dev, res) { if (res->parent) release_resource(res); } diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index c690572b10ce..027b985dd1ee 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -124,20 +124,17 @@ static resource_size_t get_res_add_align(struct list_head *head, return dev_res ? dev_res->min_align : 0; } - /* Sort resources by alignment */ static void pdev_sort_resources(struct pci_dev *dev, struct list_head *head) { + struct resource *r; int i; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r; + pci_dev_for_each_resource(dev, r, i) { struct pci_dev_resource *dev_res, *tmp; resource_size_t r_align; struct list_head *n; - r = &dev->resource[i]; - if (r->flags & IORESOURCE_PCI_FIXED) continue; @@ -895,10 +892,9 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size, min_align = window_alignment(bus, IORESOURCE_IO); list_for_each_entry(dev, &bus->devices, bus_list) { - int i; + struct resource *r; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r = &dev->resource[i]; + pci_dev_for_each_resource(dev, r) { unsigned long r_size; if (r->parent || !(r->flags & IORESOURCE_IO)) @@ -1014,10 +1010,10 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, size = 0; list_for_each_entry(dev, &bus->devices, bus_list) { + struct resource *r; int i; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r = &dev->resource[i]; + pci_dev_for_each_resource(dev, r, i) { resource_size_t r_size; if (r->parent || (r->flags & IORESOURCE_PCI_FIXED) || @@ -1358,11 +1354,10 @@ static void assign_fixed_resource_on_bus(struct pci_bus *b, struct resource *r) */ static void pdev_assign_fixed_resources(struct pci_dev *dev) { - int i; + struct resource *r; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { + pci_dev_for_each_resource(dev, r) { struct pci_bus *b; - struct resource *r = &dev->resource[i]; if (r->parent || !(r->flags & IORESOURCE_PCI_FIXED) || !(r->flags & (IORESOURCE_IO | IORESOURCE_MEM))) @@ -1795,11 +1790,9 @@ static void remove_dev_resources(struct pci_dev *dev, struct resource *io, struct resource *mmio, struct resource *mmio_pref) { - int i; - - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *res = &dev->resource[i]; + struct resource *res; + pci_dev_for_each_resource(dev, res) { if (resource_type(res) == IORESOURCE_IO) { remove_dev_resource(io, dev, res); } else if (resource_type(res) == IORESOURCE_MEM) { diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index b492e67c3d87..967f9a758923 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -484,12 +484,10 @@ int pci_enable_resources(struct pci_dev *dev, int mask) pci_read_config_word(dev, PCI_COMMAND, &cmd); old_cmd = cmd; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { + pci_dev_for_each_resource(dev, r, i) { if (!(mask & (1 << i))) continue; - r = &dev->resource[i]; - if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM))) continue; if ((i == PCI_ROM_RESOURCE) && diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c index f80b6ec88dc3..5a696078b382 100644 --- a/drivers/pci/vgaarb.c +++ b/drivers/pci/vgaarb.c @@ -548,10 +548,8 @@ static bool vga_is_firmware_default(struct pci_dev *pdev) #if defined(CONFIG_X86) || defined(CONFIG_IA64) u64 base = screen_info.lfb_base; u64 size = screen_info.lfb_size; + struct resource *r; u64 limit; - resource_size_t start, end; - unsigned long flags; - int i; /* Select the device owning the boot framebuffer if there is one */ @@ -561,19 +559,14 @@ static bool vga_is_firmware_default(struct pci_dev *pdev) limit = base + size; /* Does firmware framebuffer belong to us? */ - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - flags = pci_resource_flags(pdev, i); - - if ((flags & IORESOURCE_MEM) == 0) + pci_dev_for_each_resource(pdev, r) { + if (resource_type(r) != IORESOURCE_MEM) continue; - start = pci_resource_start(pdev, i); - end = pci_resource_end(pdev, i); - - if (!start || !end) + if (!r->start || !r->end) continue; - if (base < start || limit >= end) + if (base < r->start || limit >= r->end) continue; return true; diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index fcd029ca2eb1..83c0ab50676d 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -390,9 +390,7 @@ static int pcifront_claim_resource(struct pci_dev *dev, void *data) int i; struct resource *r; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - r = &dev->resource[i]; - + pci_dev_for_each_resource(dev, r, i) { if (!r->parent && r->start && r->flags) { dev_info(&pdev->xdev->dev, "claiming resource %s/%d\n", pci_name(dev), i); diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c index ac98b9919029..6085a1471de2 100644 --- a/drivers/pnp/quirks.c +++ b/drivers/pnp/quirks.c @@ -229,8 +229,7 @@ static void quirk_ad1815_mpu_resources(struct pnp_dev *dev) static void quirk_system_pci_resources(struct pnp_dev *dev) { struct pci_dev *pdev = NULL; - struct resource *res; - resource_size_t pnp_start, pnp_end, pci_start, pci_end; + struct resource *res, *r; int i, j; /* @@ -243,32 +242,26 @@ static void quirk_system_pci_resources(struct pnp_dev *dev) * so they won't be claimed by the PNP system driver. */ for_each_pci_dev(pdev) { - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - unsigned long flags, type; + pci_dev_for_each_resource(pdev, r, i) { + unsigned long type = resource_type(r); - flags = pci_resource_flags(pdev, i); - type = flags & (IORESOURCE_IO | IORESOURCE_MEM); - if (!type || pci_resource_len(pdev, i) == 0) + if (!(type == IORESOURCE_IO || type == IORESOURCE_MEM) || + resource_size(r) == 0) continue; - if (flags & IORESOURCE_UNSET) + if (r->flags & IORESOURCE_UNSET) continue; - pci_start = pci_resource_start(pdev, i); - pci_end = pci_resource_end(pdev, i); for (j = 0; (res = pnp_get_resource(dev, type, j)); j++) { if (res->start == 0 && res->end == 0) continue; - pnp_start = res->start; - pnp_end = res->end; - /* * If the PNP region doesn't overlap the PCI * region at all, there's no problem. */ - if (pnp_end < pci_start || pnp_start > pci_end) + if (!resource_overlaps(res, r)) continue; /* @@ -278,8 +271,7 @@ static void quirk_system_pci_resources(struct pnp_dev *dev) * PNP device describes a bridge with PCI * behind it. */ - if (pnp_start <= pci_start && - pnp_end >= pci_end) + if (res->start <= r->start && res->end >= r->end) continue; /* @@ -288,9 +280,8 @@ static void quirk_system_pci_resources(struct pnp_dev *dev) * driver from requesting its resources. */ dev_warn(&dev->dev, - "disabling %pR because it overlaps " - "%s BAR %d %pR\n", res, - pci_name(pdev), i, &pdev->resource[i]); + "disabling %pR because it overlaps %s BAR %d %pR\n", + res, pci_name(pdev), i, r); res->flags |= IORESOURCE_DISABLED; } } diff --git a/include/linux/pci.h b/include/linux/pci.h index b50e5c79f7e3..e1277a2bb645 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -26,6 +26,7 @@ #include +#include #include #include #include @@ -1995,6 +1996,7 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma); * These helpers provide future and backwards compatibility * for accessing popular PCI BAR info */ +#define pci_resource_n(dev, bar) (&(dev)->resource[(bar)]) #define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start) #define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end) #define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags) @@ -2004,6 +2006,20 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma); (pci_resource_end((dev), (bar)) - \ pci_resource_start((dev), (bar)) + 1)) +#define __pci_dev_for_each_resource_0(dev, res, ...) \ + for (unsigned int __b = 0; \ + res = pci_resource_n(dev, __b), __b < PCI_NUM_RESOURCES; \ + __b++) + +#define __pci_dev_for_each_resource_1(dev, res, __b) \ + for (__b = 0; \ + res = pci_resource_n(dev, __b), __b < PCI_NUM_RESOURCES; \ + __b++) + +#define pci_dev_for_each_resource(dev, res, ...) \ + CONCATENATE(__pci_dev_for_each_resource_, COUNT_ARGS(__VA_ARGS__)) \ + (dev, res, __VA_ARGS__) + /* * Similar to the helpers above, these manipulate per-pci_dev * driver-specific data. They are really just a wrapper around From patchwork Thu Mar 23 17:36:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 666226 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1B73C77B6C for ; Thu, 23 Mar 2023 17:37:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231896AbjCWRhZ (ORCPT ); Thu, 23 Mar 2023 13:37:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53742 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231794AbjCWRgY (ORCPT ); Thu, 23 Mar 2023 13:36:24 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0660D528; Thu, 23 Mar 2023 10:36:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679592973; x=1711128973; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yfeoYNUxbO0e2gvMFM4I3e9/lrxCDzuwgcUE0vRubSk=; b=FT1gzqklAuYPpscS5ITwqvz+pr9w2+z5Zk8jTzLagY2kTKM4noAg/nc1 uTUw+1f2TYov7hTnXpWHJM/u6KyZ+40VggN6CEjAKdjDuU8sTgacXTtiP t5BgEPthN5QcEo5tIoEECIHhO2lYV8jjcxYc61QwilY6Y7Q/lRj0mUk6s vTq733lXW2u9CwekaBWkPB7rfaEnAseDFZgNi0mPCNdoHejSEKjeKPjrQ uCRBssud0ImvQd3vt7jkWrHC9B7FupAHjL1HjNCGqpr6afLBAQ/Iyy0vf yBOni7AgVrYMHs2iPE+udEwLw4MAGCkMBNDMeJEakh0M+R0g2lYVQg/LC A==; X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="367308126" X-IronPort-AV: E=Sophos;i="5.98,285,1673942400"; d="scan'208";a="367308126" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Mar 2023 10:35:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="682380750" X-IronPort-AV: E=Sophos;i="5.98,285,1673942400"; d="scan'208";a="682380750" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 23 Mar 2023 10:35:36 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 1873736E; Thu, 23 Mar 2023 19:36:12 +0200 (EET) From: Andy Shevchenko To: =?utf-8?q?Micka=C3=ABl_Sala=C3=BCn?= , Andy Shevchenko , Mika Westerberg , =?utf-8?q?Krzysztof_Wilc?= =?utf-8?q?zy=C5=84ski?= , Michael Ellerman , Randy Dunlap , Arnd Bergmann , Niklas Schnelle , Bjorn Helgaas , "Rafael J. Wysocki" , =?utf-8?q?Pali_Roh=C3=A1r?= , "Maciej W. Rozycki" , Juergen Gross , Dominik Brodowski , linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org Cc: Miguel Ojeda , Richard Henderson , Ivan Kokshaysky , Matt Turner , Russell King , Andrew Lunn , Sebastian Hesselbarth , Gregory Clement , Thomas Bogendoerfer , Nicholas Piggin , Christophe Leroy , Anatolij Gustschin , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "David S. Miller" , Bjorn Helgaas , Stefano Stabellini , Oleksandr Tyshchenko Subject: [PATCH v7 6/6] PCI: Make use of pci_resource_n() Date: Thu, 23 Mar 2023 19:36:10 +0200 Message-Id: <20230323173610.60442-7-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1.gaa8946217a0b In-Reply-To: <20230323173610.60442-1-andriy.shevchenko@linux.intel.com> References: <20230323173610.60442-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Replace open-coded implementations of pci_resource_n() in pci.h. Signed-off-by: Andy Shevchenko --- include/linux/pci.h | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/include/linux/pci.h b/include/linux/pci.h index 70a4684d5f26..9539cf63fe5e 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2006,14 +2006,12 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma); * for accessing popular PCI BAR info */ #define pci_resource_n(dev, bar) (&(dev)->resource[(bar)]) -#define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start) -#define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end) -#define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags) -#define pci_resource_len(dev,bar) \ - ((pci_resource_end((dev), (bar)) == 0) ? 0 : \ - \ - (pci_resource_end((dev), (bar)) - \ - pci_resource_start((dev), (bar)) + 1)) +#define pci_resource_start(dev, bar) (pci_resource_n(dev, bar)->start) +#define pci_resource_end(dev, bar) (pci_resource_n(dev, bar)->end) +#define pci_resource_flags(dev, bar) (pci_resource_n(dev, bar)->flags) +#define pci_resource_len(dev,bar) \ + (pci_resource_end((dev), (bar)) ? \ + resource_size(pci_resource_n((dev), (bar))) : 0) #define __pci_dev_for_each_resource_0(dev, res, ...) \ for (unsigned int __b = 0; \