Merge tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - skip AER driver error recovery callbacks for correctable errors
   reported via ACPI APEI, as we already do for errors reported via the
   native path (Tyler Baicar)

 - fix DPC shared interrupt handling (Alex Williamson)

 - print full DPC interrupt number (Keith Busch)

 - enable DPC only if AER is available (Keith Busch)

 - simplify DPC code (Bjorn Helgaas)

 - calculate ASPM L1 substate parameter instead of hardcoding it (Bjorn
   Helgaas)

 - enable Latency Tolerance Reporting for ASPM L1 substates (Bjorn
   Helgaas)

 - move ASPM internal interfaces out of public header (Bjorn Helgaas)

 - allow hot-removal of VGA devices (Mika Westerberg)

 - speed up unplug and shutdown by assuming Thunderbolt controllers
   don't support Command Completed events (Lukas Wunner)

 - add AtomicOps support for GPU and Infiniband drivers (Felix Kuehling,
   Jay Cornwall)

 - expose "ari_enabled" in sysfs to help NIC naming (Stuart Hayes)

 - clean up PCI DMA interface usage (Christoph Hellwig)

 - remove PCI pool API (replaced with DMA pool) (Romain Perier)

 - deprecate pci_get_bus_and_slot(), which assumed PCI domain 0 (Sinan
   Kaya)

 - move DT PCI code from drivers/of/ to drivers/pci/ (Rob Herring)

 - add PCI-specific wrappers for dev_info(), etc (Frederick Lawler)

 - remove warnings on sysfs mmap failure (Bjorn Helgaas)

 - quiet ROM validation messages (Alex Deucher)

 - remove redundant memory alloc failure messages (Markus Elfring)

 - fill in types for compile-time VGA and other I/O port resources
   (Bjorn Helgaas)

 - make "pci=pcie_scan_all" work for Root Ports as well as Downstream
   Ports to help AmigaOne X1000 (Bjorn Helgaas)

 - add SPDX tags to all PCI files (Bjorn Helgaas)

 - quirk Marvell 9128 DMA aliases (Alex Williamson)

 - quirk broken INTx disable on Ceton InfiniTV4 (Bjorn Helgaas)

 - fix CONFIG_PCI=n build by adding dummy pci_irqd_intx_xlate() (Niklas
   Cassel)

 - use DMA API to get MSI address for DesignWare IP (Niklas Cassel)

 - fix endpoint-mode DMA mask configuration (Kishon Vijay Abraham I)

 - fix ARTPEC-6 incorrect IS_ERR() usage (Wei Yongjun)

 - add support for ARTPEC-7 SoC (Niklas Cassel)

 - add endpoint-mode support for ARTPEC (Niklas Cassel)

 - add Cadence PCIe host and endpoint controller driver (Cyrille
   Pitchen)

 - handle multiple INTx status bits being set in dra7xx (Vignesh R)

 - translate dra7xx hwirq range to fix INTD handling (Vignesh R)

 - remove deprecated Exynos PHY initialization code (Jaehoon Chung)

 - fix MSI erratum workaround for HiSilicon Hip06/Hip07 (Dongdong Liu)

 - fix NULL pointer dereference in iProc BCMA driver (Ray Jui)

 - fix Keystone interrupt-controller-node lookup (Johan Hovold)

 - constify qcom driver structures (Julia Lawall)

 - rework Tegra config space mapping to increase space available for
   endpoints (Vidya Sagar)

 - simplify Tegra driver by using bus->sysdata (Manikanta Maddireddy)

 - remove PCI_REASSIGN_ALL_BUS usage on Tegra (Manikanta Maddireddy)

 - add support for Global Fabric Manager Server (GFMS) event to
   Microsemi Switchtec switch driver (Logan Gunthorpe)

 - add IDs for Switchtec PSX 24xG3 and PSX 48xG3 (Kelvin Cao)

* tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
  PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller
  dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller
  PCI: endpoint: Fix EPF device name to support multi-function devices
  PCI: endpoint: Add the function number as argument to EPC ops
  PCI: cadence: Add host driver for Cadence PCIe controller
  dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller
  PCI: Add vendor ID for Cadence
  PCI: Add generic function to probe PCI host controllers
  PCI: generic: fix missing call of pci_free_resource_list()
  PCI: OF: Add generic function to parse and allocate PCI resources
  PCI: Regroup all PCI related entries into drivers/pci/Makefile
  PCI/DPC: Reformat DPC register definitions
  PCI/DPC: Add and use DPC Status register field definitions
  PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error()
  PCI/DPC: Remove unnecessary RP PIO register structs
  PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info()
  PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info()
  PCI/DPC: Make RP PIO log size check more generic
  PCI/DPC: Rename local "status" to "dpc_status"
  PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error()
  ...

1 files changed, 13 insertions, 18 deletions

diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 8d7448063fd1..a4bfea52e7d4 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/pci/pcie/aer/aerdrv_core.c
  *
- * 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.
- *
  * This file implements the core part of PCIe AER. When a PCIe
  * error is delivered, an error message will be collected and printed to
  * console, then, an error recovery procedure will be executed by following
@@ -226,9 +223,8 @@ static bool find_source_device(struct pci_dev *parent,
 	pci_walk_bus(parent->subordinate, find_device_iter, e_info);
 
 	if (!e_info->error_dev_num) {
-		dev_printk(KERN_DEBUG, &parent->dev,
-				"can't find device of ID%04x\n",
-				e_info->id);
+		pci_printk(KERN_DEBUG, parent, "can't find device of ID%04x\n",
+			   e_info->id);
 		return false;
 	}
 	return true;
@@ -256,7 +252,7 @@ static int report_error_detected(struct pci_dev *dev, void *data)
 			 * of a driver for this device is unaware of
 			 * its hw state.
 			 */
-			dev_printk(KERN_DEBUG, &dev->dev, "device has %s\n",
+			pci_printk(KERN_DEBUG, dev, "device has %s\n",
 				   dev->driver ?
 				   "no AER-aware driver" : "no driver");
 		}
@@ -366,7 +362,7 @@ static pci_ers_result_t broadcast_error_message(struct pci_dev *dev,
 {
 	struct aer_broadcast_data result_data;
 
-	dev_printk(KERN_DEBUG, &dev->dev, "broadcast %s message\n", error_mesg);
+	pci_printk(KERN_DEBUG, dev, "broadcast %s message\n", error_mesg);
 	result_data.state = state;
 	if (cb == report_error_detected)
 		result_data.result = PCI_ERS_RESULT_CAN_RECOVER;
@@ -415,7 +411,7 @@ static pci_ers_result_t broadcast_error_message(struct pci_dev *dev,
 static pci_ers_result_t default_reset_link(struct pci_dev *dev)
 {
 	pci_reset_bridge_secondary_bus(dev);
-	dev_printk(KERN_DEBUG, &dev->dev, "downstream link has been reset\n");
+	pci_printk(KERN_DEBUG, dev, "downstream link has been reset\n");
 	return PCI_ERS_RESULT_RECOVERED;
 }
 
@@ -467,15 +463,13 @@ static pci_ers_result_t reset_link(struct pci_dev *dev)
 	} else if (udev->has_secondary_link) {
 		status = default_reset_link(udev);
 	} else {
-		dev_printk(KERN_DEBUG, &dev->dev,
-			"no link-reset support at upstream device %s\n",
+		pci_printk(KERN_DEBUG, dev, "no link-reset support at upstream device %s\n",
 			pci_name(udev));
 		return PCI_ERS_RESULT_DISCONNECT;
 	}
 
 	if (status != PCI_ERS_RESULT_RECOVERED) {
-		dev_printk(KERN_DEBUG, &dev->dev,
-			"link reset at upstream device %s failed\n",
+		pci_printk(KERN_DEBUG, dev, "link reset at upstream device %s failed\n",
 			pci_name(udev));
 		return PCI_ERS_RESULT_DISCONNECT;
 	}
@@ -539,13 +533,13 @@ static void do_recovery(struct pci_dev *dev, int severity)
 				"resume",
 				report_resume);
 
-	dev_info(&dev->dev, "AER: Device recovery successful\n");
+	pci_info(dev, "AER: Device recovery successful\n");
 	return;
 
 failed:
 	pci_uevent_ers(dev, PCI_ERS_RESULT_DISCONNECT);
 	/* TODO: Should kernel panic here? */
-	dev_info(&dev->dev, "AER: Device recovery failed\n");
+	pci_info(dev, "AER: Device recovery failed\n");
 }
 
 /**
@@ -636,7 +630,8 @@ static void aer_recover_work_func(struct work_struct *work)
 			continue;
 		}
 		cper_print_aer(pdev, entry.severity, entry.regs);
-		do_recovery(pdev, entry.severity);
+		if (entry.severity != AER_CORRECTABLE)
+			do_recovery(pdev, entry.severity);
 		pci_dev_put(pdev);
 	}
 }
@@ -663,7 +658,7 @@ static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
 
 	/* The device might not support AER */
 	if (!pos)
-		return 1;
+		return 0;
 
 	if (info->severity == AER_CORRECTABLE) {
 		pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS,