Commit 67060cb1 authored by Oliver O'Halloran's avatar Oliver O'Halloran Committed by Michael Ellerman
Browse files

powerpc/pci: Add pci_find_controller_for_domain() 



Add a helper to find the pci_controller structure based on the domain
number / phb id.

Signed-off-by: default avatarOliver O'Halloran <oohall@gmail.com>
Reviewed-by: default avatarSam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent c8f02f21

arch/powerpc/include/asm/pci-bridge.h

+2 −0
Original line number Diff line number Diff line
@@ -273,6 +273,8 @@ extern int pcibios_map_io_space(struct pci_bus *bus); 
extern struct pci_controller *pci_find_hose_for_OF_device(

			struct device_node* node);



extern struct pci_controller *pci_find_controller_for_domain(int domain_nr);



/* Fill up host controller resources from the OF node */

extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,

			struct device_node *dev, int primary);

arch/powerpc/kernel/pci-common.c

+11 −0
Original line number Diff line number Diff line
@@ -351,6 +351,17 @@ struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node) 
	return NULL;

}



struct pci_controller *pci_find_controller_for_domain(int domain_nr)

{

	struct pci_controller *hose;



	list_for_each_entry(hose, &hose_list, list_node)

		if (hose->global_number == domain_nr)

			return hose;



	return NULL;

}



/*

 * Reads the interrupt pin to determine if interrupt is use by card.

 * If the interrupt is used, then gets the interrupt line from the

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