mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-11 22:36:40 +07:00
37448adfc7
The following warning was seen on 3.9 when a corrected PCIe error was being handled by the AER subsystem. WARNING: at .../drivers/pci/search.c:214 pci_get_dev_by_id+0x8a/0x90() This occurred because a call to pci_get_domain_bus_and_slot() was added to cper_print_pcie() to setup for the call to cper_print_aer(). The warning showed up because cper_print_pcie() is called in an interrupt context and pci_get* functions are not supposed to be called in that context. The solution is to move the cper_print_aer() call out of the interrupt context and into aer_recover_work_func() to avoid any warnings when calling pci_get* functions. Signed-off-by: Lance Ortiz <lance.ortiz@hp.com> Acked-by: Borislav Petkov <bp@suse.de> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/*
|
|
* Copyright (C) 2006 Intel Corp.
|
|
* Tom Long Nguyen (tom.l.nguyen@intel.com)
|
|
* Zhang Yanmin (yanmin.zhang@intel.com)
|
|
*/
|
|
|
|
#ifndef _AER_H_
|
|
#define _AER_H_
|
|
|
|
struct aer_header_log_regs {
|
|
unsigned int dw0;
|
|
unsigned int dw1;
|
|
unsigned int dw2;
|
|
unsigned int dw3;
|
|
};
|
|
|
|
struct aer_capability_regs {
|
|
u32 header;
|
|
u32 uncor_status;
|
|
u32 uncor_mask;
|
|
u32 uncor_severity;
|
|
u32 cor_status;
|
|
u32 cor_mask;
|
|
u32 cap_control;
|
|
struct aer_header_log_regs header_log;
|
|
u32 root_command;
|
|
u32 root_status;
|
|
u16 cor_err_source;
|
|
u16 uncor_err_source;
|
|
};
|
|
|
|
#if defined(CONFIG_PCIEAER)
|
|
/* pci-e port driver needs this function to enable aer */
|
|
extern int pci_enable_pcie_error_reporting(struct pci_dev *dev);
|
|
extern int pci_disable_pcie_error_reporting(struct pci_dev *dev);
|
|
extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
|
|
#else
|
|
static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
#endif
|
|
|
|
extern void cper_print_aer(struct pci_dev *dev,
|
|
int cper_severity, struct aer_capability_regs *aer);
|
|
extern int cper_severity_to_aer(int cper_severity);
|
|
extern void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
|
|
int severity,
|
|
struct aer_capability_regs *aer_regs);
|
|
#endif //_AER_H_
|
|
|