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powerpc/eeh: Rework eeh_ops->probe()

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With the EEH early probe now being pseries specific there's no need for
eeh_ops->probe() to take a pci_dn. Instead, we can make it take a pci_dev
and use the probe function to map a pci_dev to an eeh_dev. This allows
the platform to implement it's own method for finding (or creating) an
eeh_dev for a given pci_dev which also removes a use of pci_dn in
generic EEH code.

This patch also renames eeh_device_add_late() to eeh_device_probe(). This
better reflects what it does does and removes the last vestiges of the
early/late EEH probe split.

Reviewed-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200306073904.4737-6-oohall@gmail.com
This commit is contained in:
Oliver O'Halloran 2020-03-06 18:39:04 +11:00 • committed by Michael Ellerman
parent b6eebb093c
commit e86350f70a
4 changed files with 63 additions and 42 deletions
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6
arch/powerpc/include/asm/eeh.h
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@ -215,7 +215,7 @@ enum {
struct eeh_ops {
char *name;
int (*init)(void);
void* (*probe)(struct pci_dn *pdn, void *data);
struct eeh_dev *(*probe)(struct pci_dev *pdev);
int (*set_option)(struct eeh_pe *pe, int option);
int (*get_pe_addr)(struct eeh_pe *pe);
int (*get_state)(struct eeh_pe *pe, int *delay);
@ -301,7 +301,7 @@ int __exit eeh_ops_unregister(const char *name);
int eeh_check_failure(const volatile void __iomem *token);
int eeh_dev_check_failure(struct eeh_dev *edev);
void eeh_addr_cache_init(void);
void eeh_add_device_late(struct pci_dev *);
void eeh_probe_device(struct pci_dev *pdev);
void eeh_remove_device(struct pci_dev *);
int eeh_unfreeze_pe(struct eeh_pe *pe);
int eeh_pe_reset_and_recover(struct eeh_pe *pe);
@ -356,7 +356,7 @@ static inline int eeh_check_failure(const volatile void __iomem *token)
static inline void eeh_addr_cache_init(void) { }
static inline void eeh_add_device_late(struct pci_dev *dev) { }
static inline void eeh_probe_device(struct pci_dev *dev) { }
static inline void eeh_remove_device(struct pci_dev *dev) { }