[PATCH 5/7] powerpc/pci: Add pci_find_hose_for_domain()
From: Oliver O'Halloran <oohall@gmail.com>
Date: 2019-02-08 03:16:47
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Add a helper to find the pci_controller structure based on the domain number / phb id. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> --- arch/powerpc/include/asm/pci-bridge.h | 2 ++ arch/powerpc/kernel/pci-common.c | 11 +++++++++++ 2 files changed, 13 insertions(+)
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index aee4fcc24990..149053b7f481 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h@@ -274,6 +274,8 @@ 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_hose_for_domain(uint32_t 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);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 88e4f69a09e5..958f38c698da 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c@@ -357,6 +357,17 @@ struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node) return NULL; } +struct pci_controller *pci_find_hose_for_domain(uint32_t 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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2.20.1