#define OPAL_PCI_MAP_PE_MMIO_WINDOW 29 int64_t opal_pci_map_pe_mmio_window(uint64_t phb_id, uint64_t pe_number, uint16_t window_type, uint16_t window_num, uint16_t segment_num);
Appears to be POWER7 p7ioc specific. Likely to be removed soon.
WARNING: following documentation is from old sources, and is possibly not representative of OPALv3 as implemented by skiboot. This should be used as a starting point for full documentation.
The host calls this function to map a segment of MMIO address space to a PE.
is the value from the PHB node ibm,opal-phbid property.
specifies 32-bit or 64-bit PCI memory
‘0’ selects PCI IO Space. ibm,opal-ioda2 PHBs do not support IO space, and OPAL returns opal_unsupported if called for IO windows.
‘1’ selects 32-bit PCI memory space
‘2’ selects 64 bit PCI memory space
is the MMIO window number within the specified PCI memory space
is an index from 0 to the number of segments minus 1 defined or this window, and selects a particular segment within the specified window.
if (!phb) return OPAL_PARAMETER; if (!phb->ops->map_pe_mmio_window) return OPAL_UNSUPPORTED;