64ae499cf2
- move pcieport_if.h to drivers/pci/pcie/ to encapsulate it (Frederick
Lawler)
- merge pcieport_if.h into portdrv.h (Bjorn Helgaas)
- move workaround for BIOS PME issue from portdrv to PCI core (Bjorn
Helgaas)
- completely disable portdrv with "pcie_ports=compat" (Bjorn Helgaas)
- remove portdrv link order dependency (Bjorn Helgaas)
- remove support for unused VC portdrv service (Bjorn Helgaas)
- simplify portdrv feature permission checking (Bjorn Helgaas)
- remove "pcie_hp=nomsi" parameter (use "pci=nomsi" instead) (Bjorn
Helgaas)
- remove unnecessary "pcie_ports=auto" parameter (Bjorn Helgaas)
- use cached AER capability offset (Frederick Lawler)
- don't enable DPC if BIOS hasn't granted AER control (Mika Westerberg)
- rename pcie-dpc.c to dpc.c (Bjorn Helgaas)
* pci/portdrv:
PCI/DPC: Rename from pcie-dpc.c to dpc.c
PCI/DPC: Do not enable DPC if AER control is not allowed by the BIOS
PCI/AER: Use cached AER Capability offset
PCI/portdrv: Rename and reverse sense of pcie_ports_auto
PCI/portdrv: Encapsulate pcie_ports_auto inside the port driver
PCI/portdrv: Remove unnecessary "pcie_ports=auto" parameter
PCI/portdrv: Remove "pcie_hp=nomsi" kernel parameter
PCI/portdrv: Remove unnecessary include of <linux/pci-aspm.h>
PCI/portdrv: Simplify PCIe feature permission checking
PCI/portdrv: Remove unused PCIE_PORT_SERVICE_VC
PCI/portdrv: Remove pcie_port_bus_type link order dependency
PCI/portdrv: Disable port driver in compat mode
PCI/PM: Clear PCIe PME Status bit for Root Complex Event Collectors
PCI/PM: Clear PCIe PME Status bit in core, not PCIe port driver
PCI/PM: Move pcie_clear_root_pme_status() to core
PCI/portdrv: Merge pcieport_if.h into portdrv.h
PCI/portdrv: Move pcieport_if.h to drivers/pci/pcie/
Conflicts:
drivers/pci/pcie/Makefile
drivers/pci/pcie/portdrv.h
125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2006 Intel Corp.
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* Tom Long Nguyen (tom.l.nguyen@intel.com)
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* Zhang Yanmin (yanmin.zhang@intel.com)
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*/
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#ifndef _AERDRV_H_
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#define _AERDRV_H_
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#include <linux/workqueue.h>
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#include <linux/aer.h>
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#include <linux/interrupt.h>
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#include "../portdrv.h"
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#define SYSTEM_ERROR_INTR_ON_MESG_MASK (PCI_EXP_RTCTL_SECEE| \
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PCI_EXP_RTCTL_SENFEE| \
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PCI_EXP_RTCTL_SEFEE)
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#define ROOT_PORT_INTR_ON_MESG_MASK (PCI_ERR_ROOT_CMD_COR_EN| \
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PCI_ERR_ROOT_CMD_NONFATAL_EN| \
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PCI_ERR_ROOT_CMD_FATAL_EN)
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#define ERR_COR_ID(d) (d & 0xffff)
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#define ERR_UNCOR_ID(d) (d >> 16)
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#define AER_ERROR_SOURCES_MAX 100
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#define AER_LOG_TLP_MASKS (PCI_ERR_UNC_POISON_TLP| \
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PCI_ERR_UNC_ECRC| \
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PCI_ERR_UNC_UNSUP| \
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PCI_ERR_UNC_COMP_ABORT| \
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PCI_ERR_UNC_UNX_COMP| \
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PCI_ERR_UNC_MALF_TLP)
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#define AER_MAX_MULTI_ERR_DEVICES 5 /* Not likely to have more */
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struct aer_err_info {
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struct pci_dev *dev[AER_MAX_MULTI_ERR_DEVICES];
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int error_dev_num;
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unsigned int id:16;
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unsigned int severity:2; /* 0:NONFATAL | 1:FATAL | 2:COR */
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unsigned int __pad1:5;
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unsigned int multi_error_valid:1;
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unsigned int first_error:5;
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unsigned int __pad2:2;
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unsigned int tlp_header_valid:1;
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unsigned int status; /* COR/UNCOR Error Status */
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unsigned int mask; /* COR/UNCOR Error Mask */
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struct aer_header_log_regs tlp; /* TLP Header */
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};
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struct aer_err_source {
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unsigned int status;
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unsigned int id;
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};
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struct aer_rpc {
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struct pcie_device *rpd; /* Root Port device */
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struct work_struct dpc_handler;
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struct aer_err_source e_sources[AER_ERROR_SOURCES_MAX];
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struct aer_err_info e_info;
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unsigned short prod_idx; /* Error Producer Index */
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unsigned short cons_idx; /* Error Consumer Index */
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int isr;
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spinlock_t e_lock; /*
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* Lock access to Error Status/ID Regs
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* and error producer/consumer index
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*/
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struct mutex rpc_mutex; /*
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* only one thread could do
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* recovery on the same
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* root port hierarchy
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*/
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};
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struct aer_broadcast_data {
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enum pci_channel_state state;
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enum pci_ers_result result;
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};
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static inline pci_ers_result_t merge_result(enum pci_ers_result orig,
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enum pci_ers_result new)
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{
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if (new == PCI_ERS_RESULT_NO_AER_DRIVER)
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return PCI_ERS_RESULT_NO_AER_DRIVER;
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if (new == PCI_ERS_RESULT_NONE)
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return orig;
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switch (orig) {
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case PCI_ERS_RESULT_CAN_RECOVER:
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case PCI_ERS_RESULT_RECOVERED:
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orig = new;
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break;
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case PCI_ERS_RESULT_DISCONNECT:
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if (new == PCI_ERS_RESULT_NEED_RESET)
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orig = PCI_ERS_RESULT_NEED_RESET;
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break;
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default:
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break;
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}
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return orig;
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}
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extern struct bus_type pcie_port_bus_type;
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void aer_isr(struct work_struct *work);
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void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);
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void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info);
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irqreturn_t aer_irq(int irq, void *context);
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#ifdef CONFIG_ACPI_APEI
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int pcie_aer_get_firmware_first(struct pci_dev *pci_dev);
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#else
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static inline int pcie_aer_get_firmware_first(struct pci_dev *pci_dev)
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{
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if (pci_dev->__aer_firmware_first_valid)
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return pci_dev->__aer_firmware_first;
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return 0;
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}
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#endif
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#endif /* _AERDRV_H_ */
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