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Commit f2856491 authored by Gavin Shan's avatar Gavin Shan Committed by Benjamin Herrenschmidt
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powerpc/eeh: Export functions for hotplug 



Make some functions public in order to support hotplug on either specific
PCI bus or PCI device in future.

Signed-off-by: default avatarGavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 0ba17888

arch/powerpc/include/asm/eeh.h

+9 −0
Original line number Diff line number Diff line
@@ -209,9 +209,12 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, 
				unsigned long val);

int eeh_dev_check_failure(struct eeh_dev *edev);

void eeh_addr_cache_build(void);

void eeh_add_device_early(struct device_node *);

void eeh_add_device_tree_early(struct device_node *);

void eeh_add_device_late(struct pci_dev *);

void eeh_add_device_tree_late(struct pci_bus *);

void eeh_add_sysfs_files(struct pci_bus *);

void eeh_remove_device(struct pci_dev *, int);

void eeh_remove_bus_device(struct pci_dev *, int);



/**
@@ -252,12 +255,18 @@ static inline unsigned long eeh_check_failure(const volatile void __iomem *token 


static inline void eeh_addr_cache_build(void) { }



static inline void eeh_add_device_early(struct device_node *dn) { }



static inline void eeh_add_device_tree_early(struct device_node *dn) { }



static inline void eeh_add_device_late(struct pci_dev *dev) { }



static inline void eeh_add_device_tree_late(struct pci_bus *bus) { }



static inline void eeh_add_sysfs_files(struct pci_bus *bus) { }



static inline void eeh_remove_device(struct pci_dev *dev, int purge_pe) { }



static inline void eeh_remove_bus_device(struct pci_dev *dev, int purge_pe) { }



#define EEH_POSSIBLE_ERROR(val, type) (0)

arch/powerpc/kernel/eeh.c

+3 −3
Original line number Diff line number Diff line
@@ -836,7 +836,7 @@ core_initcall_sync(eeh_init); 
 * on the CEC architecture, type of the device, on earlier boot

 * command-line arguments & etc.

 */

static void eeh_add_device_early(struct device_node *dn)

void eeh_add_device_early(struct device_node *dn)

{

	struct pci_controller *phb;
@@ -884,7 +884,7 @@ EXPORT_SYMBOL_GPL(eeh_add_device_tree_early); 
 * This routine must be used to complete EEH initialization for PCI

 * devices that were added after system boot (e.g. hotplug, dlpar).

 */

static void eeh_add_device_late(struct pci_dev *dev)

void eeh_add_device_late(struct pci_dev *dev)

{

	struct device_node *dn;

	struct eeh_dev *edev;
@@ -972,7 +972,7 @@ EXPORT_SYMBOL_GPL(eeh_add_sysfs_files); 
 * this device will no longer be detected after this call; thus,

 * i/o errors affecting this slot may leave this device unusable.

 */

static void eeh_remove_device(struct pci_dev *dev, int purge_pe)

void eeh_remove_device(struct pci_dev *dev, int purge_pe)

{

	struct eeh_dev *edev;