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powerpc/eeh: Create eeh_dev from pci_dn instead of device_node

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The patch adds function traverse_pci_dn(), which is similar to
traverse_pci_devices() except it takes pci_dn, not device_node
as parameter. The pci_dev.c has been reworked to create eeh_dev
from pci_dn, instead of device_node.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Gavin Shan
2015-03-17 16:15:05 +11:00
committed by Benjamin Herrenschmidt
parent c035ff1d2e
commit e8e9b34cef
6 changed files with 69 additions and 11 deletions
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14
arch/powerpc/kernel/eeh_dev.c
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@@ -43,13 +43,13 @@
/**
* eeh_dev_init - Create EEH device according to OF node
* @dn: device node
* @pdn: PCI device node
* @data: PHB
*
* It will create EEH device according to the given OF node. The function
* might be called by PCI emunation, DR, PHB hotplug.
*/
void *eeh_dev_init(struct device_node *dn, void *data)
void *eeh_dev_init(struct pci_dn *pdn, void *data)
{
struct pci_controller *phb = data;
struct eeh_dev *edev;
@@ -63,8 +63,8 @@ void *eeh_dev_init(struct device_node *dn, void *data)
}
/* Associate EEH device with OF node */
PCI_DN(dn)->edev = edev;
edev->dn = dn;
pdn->edev = edev;
edev->pdn = pdn;
edev->phb = phb;
INIT_LIST_HEAD(&edev->list);
@@ -80,16 +80,16 @@ void *eeh_dev_init(struct device_node *dn, void *data)
*/
void eeh_dev_phb_init_dynamic(struct pci_controller *phb)
{
struct device_node *dn = phb->dn;
struct pci_dn *root = phb->pci_data;
/* EEH PE for PHB */
eeh_phb_pe_create(phb);
/* EEH device for PHB */
eeh_dev_init(dn, phb);
eeh_dev_init(root, phb);
/* EEH devices for children OF nodes */
traverse_pci_devices(dn, eeh_dev_init, phb);
traverse_pci_dn(root, eeh_dev_init, phb);
}
/**