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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-19 13:10:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-19 13:10:54 -0700
commit7afd16f882887c9adc69cd1794f5e57777723217 (patch)
tree73683d08184a227cf627230d8b887a92c51a32e5 /arch
parenta37571a29eca963562ff5a9233db4a5c73c72cf9 (diff)
parente257ef55ce51d7ec399193ee85acda8b8759d930 (diff)
Merge tag 'pci-v4.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas: "Enumeration: - Refine PCI support check in pcibios_init() (Adrian-Ken Rueegsegger) - Provide common functions for ECAM mapping (Jayachandran C) - Allow all PCIe services on non-ACPI host bridges (Jon Derrick) - Remove return values from pcie_port_platform_notify() and relatives (Jon Derrick) - Widen portdrv service type from 4 bits to 8 bits (Keith Busch) - Add Downstream Port Containment portdrv service type (Keith Busch) - Add Downstream Port Containment driver (Keith Busch) Resource management: - Identify Enhanced Allocation (EA) BAR Equivalent resources in sysfs (Alex Williamson) - Supply CPU physical address (not bus address) to iomem_is_exclusive() (Bjorn Helgaas) - alpha: Call iomem_is_exclusive() for IORESOURCE_MEM, but not IORESOURCE_IO (Bjorn Helgaas) - Mark Broadwell-EP Home Agent 1 as having non-compliant BARs (Prarit Bhargava) - Disable all BAR sizing for devices with non-compliant BARs (Prarit Bhargava) - Move PCI I/O space management from OF to PCI core code (Tomasz Nowicki) PCI device hotplug: - acpiphp_ibm: Avoid uninitialized variable reference (Dan Carpenter) - Use cached copy of PCI_EXP_SLTCAP_HPC bit (Lukas Wunner) Virtualization: - Mark Intel i40e NIC INTx masking as broken (Alex Williamson) - Reverse standard ACS vs device-specific ACS enabling (Alex Williamson) - Work around Intel Sunrise Point PCH incorrect ACS capability (Alex Williamson) IOMMU: - Add pci_add_dma_alias() to abstract implementation (Bjorn Helgaas) - Move informational printk to pci_add_dma_alias() (Bjorn Helgaas) - Add support for multiple DMA aliases (Jacek Lawrynowicz) - Add DMA alias quirk for mic_x200_dma (Jacek Lawrynowicz) Thunderbolt: - Fix double free of drom buffer (Andreas Noever) - Add Intel Thunderbolt device IDs (Lukas Wunner) - Fix typos and magic number (Lukas Wunner) - Support 1st gen Light Ridge controller (Lukas Wunner) Generic host bridge driver: - Use generic ECAM API (Jayachandran C) Cavium ThunderX host bridge driver: - Don't clobber read-only bits in bridge config registers (David Daney) - Use generic ECAM API (Jayachandran C) Freescale i.MX6 host bridge driver: - Use enum instead of bool for variant indicator (Andrey Smirnov) - Implement reset sequence for i.MX6+ (Andrey Smirnov) - Factor out ref clock enable (Bjorn Helgaas) - Add initial imx6sx support (Christoph Fritz) - Add reset-gpio-active-high boolean property to DT (Petr Štetiar) - Add DT property for link gen, default to Gen1 (Tim Harvey) - dts: Specify imx6qp version of PCIe core (Andrey Smirnov) - dts: Fix PCIe reset GPIO polarity on Toradex Apalis Ixora (Petr Štetiar) Marvell Armada host bridge driver: - add DT binding for Marvell Armada 7K/8K PCIe controller (Thomas Petazzoni) - Add driver for Marvell Armada 7K/8K PCIe controller (Thomas Petazzoni) Marvell MVEBU host bridge driver: - Constify mvebu_pcie_pm_ops structure (Jisheng Zhang) - Use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS for mvebu_pcie_pm_ops (Jisheng Zhang) Microsoft Hyper-V host bridge driver: - Report resources release after stopping the bus (Vitaly Kuznetsov) - Add explicit barriers to config space access (Vitaly Kuznetsov) Renesas R-Car host bridge driver: - Select PCI_MSI_IRQ_DOMAIN (Arnd Bergmann) Synopsys DesignWare host bridge driver: - Remove incorrect RC memory base/limit configuration (Gabriele Paoloni) - Move Root Complex setup code to dw_pcie_setup_rc() (Jisheng Zhang) TI Keystone host bridge driver: - Add error IRQ handler (Murali Karicheri) - Remove unnecessary goto statement (Murali Karicheri) Miscellaneous: - Fix spelling errors (Colin Ian King)" * tag 'pci-v4.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (48 commits) PCI: Disable all BAR sizing for devices with non-compliant BARs x86/PCI: Mark Broadwell-EP Home Agent 1 as having non-compliant BARs PCI: Identify Enhanced Allocation (EA) BAR Equivalent resources in sysfs PCI, of: Move PCI I/O space management to PCI core code PCI: generic, thunder: Use generic ECAM API PCI: Provide common functions for ECAM mapping PCI: hv: Add explicit barriers to config space access PCI: Use cached copy of PCI_EXP_SLTCAP_HPC bit PCI: Add Downstream Port Containment driver PCI: Add Downstream Port Containment portdrv service type PCI: Widen portdrv service type from 4 bits to 8 bits PCI: designware: Remove incorrect RC memory base/limit configuration PCI: hv: Report resources release after stopping the bus ARM: dts: imx6qp: Specify imx6qp version of PCIe core PCI: imx6: Implement reset sequence for i.MX6+ PCI: imx6: Use enum instead of bool for variant indicator PCI: thunder: Don't clobber read-only bits in bridge config registers thunderbolt: Fix double free of drom buffer PCI: rcar: Select PCI_MSI_IRQ_DOMAIN PCI: armada: Add driver for Marvell Armada 7K/8K PCIe controller ...
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/kernel/pci-sysfs.c4
-rw-r--r--arch/arm/boot/dts/imx6q-apalis-ixora.dts5
-rw-r--r--arch/arm/boot/dts/imx6qp.dtsi3
-rw-r--r--arch/x86/pci/common.c2
-rw-r--r--arch/x86/pci/fixup.c7
5 files changed, 16 insertions, 5 deletions
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index 99e8d4796c96..92c0d460815b 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -77,10 +77,10 @@ static int pci_mmap_resource(struct kobject *kobj,
if (i >= PCI_ROM_RESOURCE)
return -ENODEV;
- if (!__pci_mmap_fits(pdev, i, vma, sparse))
+ if (res->flags & IORESOURCE_MEM && iomem_is_exclusive(res->start))
return -EINVAL;
- if (iomem_is_exclusive(res->start))
+ if (!__pci_mmap_fits(pdev, i, vma, sparse))
return -EINVAL;
pcibios_resource_to_bus(pdev->bus, &bar, res);
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora.dts b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
index 8e3e1466cc6f..8e67ca27ad79 100644
--- a/arch/arm/boot/dts/imx6q-apalis-ixora.dts
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
@@ -219,8 +219,9 @@
};
&pcie {
- /* active-low meaning opposite of regular PERST# active-low polarity */
- reset-gpio = <&gpio1 28 GPIO_ACTIVE_LOW>;
+ /* active-high meaning opposite of regular PERST# active-low polarity */
+ reset-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ reset-gpio-active-high;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qp.dtsi b/arch/arm/boot/dts/imx6qp.dtsi
index 1ada71437e49..886dbf2eca49 100644
--- a/arch/arm/boot/dts/imx6qp.dtsi
+++ b/arch/arm/boot/dts/imx6qp.dtsi
@@ -82,5 +82,8 @@
"ldb_di0", "ldb_di1", "prg";
};
+ pcie: pcie@0x01000000 {
+ compatible = "fsl,imx6qp-pcie", "snps,dw-pcie";
+ };
};
};
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 381a43c40bf7..8196054fedb0 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -516,7 +516,7 @@ void __init pcibios_set_cache_line_size(void)
int __init pcibios_init(void)
{
- if (!raw_pci_ops) {
+ if (!raw_pci_ops && !raw_pci_ext_ops) {
printk(KERN_WARNING "PCI: System does not support PCI\n");
return 0;
}
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index b7de1929714b..837ea36a837d 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -552,9 +552,16 @@ static void twinhead_reserve_killing_zone(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x27B9, twinhead_reserve_killing_zone);
+/*
+ * Broadwell EP Home Agent BARs erroneously return non-zero values when read.
+ *
+ * See http://www.intel.com/content/www/us/en/processors/xeon/xeon-e5-v4-spec-update.html
+ * entry BDF2.
+ */
static void pci_bdwep_bar(struct pci_dev *dev)
{
dev->non_compliant_bars = 1;
}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6f60, pci_bdwep_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_bdwep_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_bdwep_bar);