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Full Discussion: help writing pci firmware
Top Forums Programming help writing pci firmware Post 302490054 by Corona688 on Sunday 23rd of January 2011 05:46:47 PM
Old 01-23-2011
You might find some illuminating stuff in the Documentation folder of the Linux kernel even if you don't find the source code helpful. I'm utterly unable to help with specifics though, having never played with the PCI bus.
 

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Advanced I/O object traversal helpers(3)		     Hardware Locality (hwloc)			  Advanced I/O object traversal helpers(3)

NAME
Advanced I/O object traversal helpers - Functions static inline hwloc_obj_t hwloc_get_non_io_ancestor_obj (hwloc_topology_t topology , hwloc_obj_t ioobj) static inline hwloc_obj_t hwloc_get_next_pcidev (hwloc_topology_t topology, hwloc_obj_t prev) static inline hwloc_obj_t hwloc_get_pcidev_by_busid (hwloc_topology_t topology, unsigned domain, unsigned bus, unsigned dev, unsigned func) static inline hwloc_obj_t hwloc_get_pcidev_by_busidstring (hwloc_topology_t topology, const char *busid) static inline hwloc_obj_t hwloc_get_next_osdev (hwloc_topology_t topology, hwloc_obj_t prev) static inline hwloc_obj_t hwloc_get_next_bridge (hwloc_topology_t topology, hwloc_obj_t prev) static inline int hwloc_bridge_covers_pcibus (hwloc_obj_t bridge, unsigned domain, unsigned bus) static inline hwloc_obj_t hwloc_get_hostbridge_by_pcibus (hwloc_topology_t topology, unsigned domain, unsigned bus) Function Documentation static inline int hwloc_bridge_covers_pcibus (hwloc_obj_tbridge, unsigneddomain, unsignedbus) [static] static inline hwloc_obj_t hwloc_get_hostbridge_by_pcibus (hwloc_topology_ttopology, unsigneddomain, unsignedbus) [static] Find the hostbridge that covers the given PCI bus. This is useful for finding the locality of a bus because it is the hostbridge parent cpuset. static inline hwloc_obj_t hwloc_get_next_bridge (hwloc_topology_ttopology, hwloc_obj_tprev) [static] Get the next bridge in the system. Returns: the first bridge if prev is NULL. static inline hwloc_obj_t hwloc_get_next_osdev (hwloc_topology_ttopology, hwloc_obj_tprev) [static] Get the next OS device in the system. Returns: the first OS device if prev is NULL. static inline hwloc_obj_t hwloc_get_next_pcidev (hwloc_topology_ttopology, hwloc_obj_tprev) [static] Get the next PCI device in the system. Returns: the first PCI device if prev is NULL. static inline hwloc_obj_t hwloc_get_non_io_ancestor_obj (hwloc_topology_t topology, hwloc_obj_tioobj) [static] Get the first non-I/O ancestor object. Given the I/O object ioobj, find the smallest non-I/O ancestor object. This regular object may then be used for binding because its locality is the same as ioobj. static inline hwloc_obj_t hwloc_get_pcidev_by_busid (hwloc_topology_ttopology, unsigneddomain, unsignedbus, unsigneddev, unsignedfunc) [static] Find the PCI device object matching the PCI bus id given domain, bus device and function PCI bus id. static inline hwloc_obj_t hwloc_get_pcidev_by_busidstring (hwloc_topology_ttopology, const char *busid) [static] Find the PCI device object matching the PCI bus id given as a string xxxx:yy:zz.t or yy:zz.t. Author Generated automatically by Doxygen for Hardware Locality (hwloc) from the source code. Version 1.4.1 Mon Feb 27 2012 Advanced I/O object traversal helpers(3)
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