From c9c13ba428ef90a9b408a6cdf874e14ab5754516 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Sat, 28 Sep 2019 02:43:08 +0300 Subject: PCI: Add PCI_STD_NUM_BARS for the number of standard BARs Code that iterates over all standard PCI BARs typically uses PCI_STD_RESOURCE_END. However, that requires the unusual test "i <= PCI_STD_RESOURCE_END" rather than something the typical "i < PCI_STD_NUM_BARS". Add a definition for PCI_STD_NUM_BARS and change loops to use the more idiomatic C style to help avoid fencepost errors. Link: https://lore.kernel.org/r/20190927234026.23342-1-efremov@linux.com Link: https://lore.kernel.org/r/20190927234308.23935-1-efremov@linux.com Link: https://lore.kernel.org/r/20190916204158.6889-3-efremov@linux.com Signed-off-by: Denis Efremov Signed-off-by: Bjorn Helgaas Acked-by: Sebastian Ott # arch/s390/ Acked-by: Bartlomiej Zolnierkiewicz # video/fbdev/ Acked-by: Gustavo Pimentel # pci/controller/dwc/ Acked-by: Jack Wang # scsi/pm8001/ Acked-by: Martin K. Petersen # scsi/pm8001/ Acked-by: Ulf Hansson # memstick/ --- arch/x86/pci/common.c | 2 +- arch/x86/pci/intel_mid_pci.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/x86/pci') diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 9acab6ac28f5..1e59df041456 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -135,7 +135,7 @@ static void pcibios_fixup_device_resources(struct pci_dev *dev) * resource so the kernel doesn't attempt to assign * it later on in pci_assign_unassigned_resources */ - for (bar = 0; bar <= PCI_STD_RESOURCE_END; bar++) { + for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { bar_r = &dev->resource[bar]; if (bar_r->start == 0 && bar_r->end != 0) { bar_r->flags = 0; diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c index 43867bc85368..00c62115f39c 100644 --- a/arch/x86/pci/intel_mid_pci.c +++ b/arch/x86/pci/intel_mid_pci.c @@ -382,7 +382,7 @@ static void pci_fixed_bar_fixup(struct pci_dev *dev) PCI_DEVFN(2, 2) == dev->devfn) return; - for (i = 0; i < PCI_ROM_RESOURCE; i++) { + for (i = 0; i < PCI_STD_NUM_BARS; i++) { pci_read_config_dword(dev, offset + 8 + (i * 4), &size); dev->resource[i].end = dev->resource[i].start + size - 1; dev->resource[i].flags |= IORESOURCE_PCI_FIXED; -- cgit v1.2.3 From 4257ac5acdee880ed2251278199b3569dfa3dc49 Mon Sep 17 00:00:00 2001 From: Krzysztof Wilczynski Date: Mon, 30 Sep 2019 17:48:09 -0500 Subject: x86/PCI: Add NumaChip SPDX GPL-2.0 to replace COPYING boilerplate Add SPDX GPL-2.0 to numachip.c, which referred to the kernel default "COPYING" file, which specifies GPL version 2. Remove the boilerplate language referring to the GPL and "COPYING", relying on the assertion in b24413180f56 ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license") that the SPDX identifier may be used instead of the full boilerplate text. [bhelgaas: split to separate patch] Link: https://lore.kernel.org/r/20190828135322.10370-1-kw@linux.com Signed-off-by: Krzysztof Wilczynski Signed-off-by: Bjorn Helgaas --- arch/x86/pci/numachip.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'arch/x86/pci') diff --git a/arch/x86/pci/numachip.c b/arch/x86/pci/numachip.c index 2e565e65c893..01a085d9135a 100644 --- a/arch/x86/pci/numachip.c +++ b/arch/x86/pci/numachip.c @@ -1,8 +1,5 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * * Numascale NumaConnect-specific PCI code * * Copyright (C) 2012 Numascale AS. All rights reserved. -- cgit v1.2.3 From 0d2f4d62ff4164df5611df53ae5546421d40cfb4 Mon Sep 17 00:00:00 2001 From: Krzysztof Wilczynski Date: Mon, 19 Aug 2019 08:05:32 +0200 Subject: x86/PCI: Replace deprecated EXTRA_CFLAGS with ccflags-y Update arch/x86/pci/Makefile replacing the deprecated EXTRA_CFLAGS with the ccflags-y matching recommendation per section 3.7 of Documentation/kbuild/makefiles.txt. Link: https://lore.kernel.org/r/20190819060532.17093-1-kw@linux.com Signed-off-by: Krzysztof Wilczynski Signed-off-by: Bjorn Helgaas --- arch/x86/pci/Makefile | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'arch/x86/pci') diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile index c806b57d3f22..48bcada5cabe 100644 --- a/arch/x86/pci/Makefile +++ b/arch/x86/pci/Makefile @@ -24,6 +24,4 @@ obj-y += bus_numa.o obj-$(CONFIG_AMD_NB) += amd_bus.o obj-$(CONFIG_PCI_CNB20LE_QUIRK) += broadcom_bus.o -ifeq ($(CONFIG_PCI_DEBUG),y) -EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_PCI_DEBUG) += -DDEBUG -- cgit v1.2.3 From 7e8ce0e2b036dbc6617184317983aea4f2c52099 Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Mon, 2 Sep 2019 22:52:52 +0800 Subject: x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect The AMD FCH USB XHCI Controller advertises support for generating PME# while in D0. When in D0, it does signal PME# for USB 3.0 connect events, but not for USB 2.0 or USB 1.1 connect events, which means the controller doesn't wake correctly for those events. 00:10.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller [1022:7914] (rev 20) (prog-if 30 [XHCI]) Subsystem: Dell FCH USB XHCI Controller [1028:087e] Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Clear PCI_PM_CAP_PME_D0 in dev->pme_support to indicate the device will not assert PME# from D0 so we don't rely on it. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203673 Link: https://lore.kernel.org/r/20190902145252.32111-1-kai.heng.feng@canonical.com Signed-off-by: Kai-Heng Feng Signed-off-by: Bjorn Helgaas Cc: stable@vger.kernel.org --- arch/x86/pci/fixup.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/x86/pci') diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c index 527e69b12002..e723559c386a 100644 --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -588,6 +588,17 @@ static void pci_fixup_amd_ehci_pme(struct pci_dev *dev) } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x7808, pci_fixup_amd_ehci_pme); +/* + * Device [1022:7914] + * When in D0, PME# doesn't get asserted when plugging USB 2.0 device. + */ +static void pci_fixup_amd_fch_xhci_pme(struct pci_dev *dev) +{ + dev_info(&dev->dev, "PME# does not work under D0, disabling it\n"); + dev->pme_support &= ~(PCI_PM_CAP_PME_D0 >> PCI_PM_CAP_PME_SHIFT); +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x7914, pci_fixup_amd_fch_xhci_pme); + /* * Apple MacBook Pro: Avoid [mem 0x7fa00000-0x7fbfffff] * -- cgit v1.2.3