From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=192.55.52.115; helo=mga14.intel.com; envelope-from=ruiyu.ni@intel.com; receiver=edk2-devel@lists.01.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 01F12210FC39B for ; Wed, 22 Aug 2018 19:53:13 -0700 (PDT) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Aug 2018 19:53:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,276,1531810800"; d="scan'208";a="64508495" Received: from ray-dev.ccr.corp.intel.com ([10.239.9.8]) by fmsmga007.fm.intel.com with ESMTP; 22 Aug 2018 19:53:12 -0700 From: Ruiyu Ni To: edk2-devel@lists.01.org Cc: Star Zeng Date: Thu, 23 Aug 2018 10:53:52 +0800 Message-Id: <20180823025353.137924-2-ruiyu.ni@intel.com> X-Mailer: git-send-email 2.16.1.windows.1 In-Reply-To: <20180823025353.137924-1-ruiyu.ni@intel.com> References: <20180823025353.137924-1-ruiyu.ni@intel.com> Subject: [PATCH 1/2] MdeModulePkg/PciBus: Refine ActiveVGADeviceOnTheRootBridge X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Aug 2018 02:53:14 -0000 REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1109 The patch doesn't change any behavior of this function. It just renames the function to LocateVgaDevice() and renames some parameters and local variables. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni Cc: Star Zeng --- MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c | 35 +++++++++++------------ MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h | 10 +++---- 2 files changed, 21 insertions(+), 24 deletions(-) diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c index f7039da992..fdec0bcd53 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c @@ -1002,7 +1002,7 @@ ActiveVGADeviceOnTheSameSegment ( if (Temp->PciRootBridgeIo->SegmentNumber == VgaDevice->PciRootBridgeIo->SegmentNumber) { - Temp = ActiveVGADeviceOnTheRootBridge (Temp); + Temp = LocateVgaDevice (Temp); if (Temp != NULL) { return Temp; @@ -1016,41 +1016,41 @@ ActiveVGADeviceOnTheSameSegment ( } /** - Get the active VGA device on the root bridge. + Locate the active VGA device under the bridge. - @param RootBridge PCI IO instance for the root bridge. + @param Bridge PCI IO instance for the bridge. @return The active VGA device. **/ PCI_IO_DEVICE * -ActiveVGADeviceOnTheRootBridge ( - IN PCI_IO_DEVICE *RootBridge +LocateVgaDevice ( + IN PCI_IO_DEVICE *Bridge ) { LIST_ENTRY *CurrentLink; - PCI_IO_DEVICE *Temp; + PCI_IO_DEVICE *PciIo; - CurrentLink = RootBridge->ChildList.ForwardLink; + CurrentLink = Bridge->ChildList.ForwardLink; - while (CurrentLink != NULL && CurrentLink != &RootBridge->ChildList) { + while (CurrentLink != NULL && CurrentLink != &Bridge->ChildList) { - Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink); + PciIo = PCI_IO_DEVICE_FROM_LINK (CurrentLink); - if (IS_PCI_VGA(&Temp->Pci) && - (Temp->Attributes & + if (IS_PCI_VGA(&PciIo->Pci) && + (PciIo->Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY | EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) != 0) { - return Temp; + return PciIo; } - if (IS_PCI_BRIDGE (&Temp->Pci)) { + if (IS_PCI_BRIDGE (&PciIo->Pci)) { - Temp = ActiveVGADeviceOnTheRootBridge (Temp); + PciIo = LocateVgaDevice (PciIo); - if (Temp != NULL) { - return Temp; + if (PciIo != NULL) { + return PciIo; } } @@ -1060,6 +1060,3 @@ ActiveVGADeviceOnTheRootBridge ( return NULL; } - - - diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h index c282381f85..1ec2178a21 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h @@ -1,7 +1,7 @@ /** @file Supporting functions declaration for PCI devices management. -Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at @@ -243,16 +243,16 @@ ActiveVGADeviceOnTheSameSegment ( ); /** - Get the active VGA device on the root bridge. + Locate the active VGA device under the bridge. - @param RootBridge PCI IO instance for the root bridge. + @param Bridge PCI IO instance for the bridge. @return The active VGA device. **/ PCI_IO_DEVICE * -ActiveVGADeviceOnTheRootBridge ( - IN PCI_IO_DEVICE *RootBridge +LocateVgaDevice ( + IN PCI_IO_DEVICE *Bridge ); -- 2.16.1.windows.1