Lines Matching +full:bus +full:- +full:range

1 .. SPDX-License-Identifier: GPL-2.0
39 If the OS is expected to manage a non-discoverable device described via
46 they forward down to the PCI bus, as well as registers of the host bridge
48 things like secondary/subordinate bus registers that determine the bus
49 range below the bridge, window registers that describe the apertures, etc.
50 These are all device-specific, non-architected things, so the only way a
52 the device-specific details.  The host bridge registers also include ECAM
66 bridge registers (including ECAM space) in PNP0C02 catch-all devices [6].
67 With the exception of ECAM, the bridge register space is device-specific
78 PNP0C02 "motherboard" devices are basically a catch-all.  There's no
89 the address space is device-specific.  An ACPI OS learns the base address
92 The MCFG table must describe the ECAM space of non-hot pluggable host
95 hot-pluggable host bridge [9].  Note that for both MCFG and _CBA, the base
96 address always corresponds to bus 0, even if the bus range below the bridge
101     For any device that is on a non-enumerable type of bus (for example, an
102     ISA bus), OSPM enumerates the devices' identifier(s) and the ACPI
110     Each device enumerated by ACPI includes ACPI-defined objects in the
147     ResourceUsage specifies whether the Memory range is consumed by
155     address range reported in the MCFG table or by _CBA method (see Section
159     the resources in this case should not be claimed in the root PCI bus’s
165     For systems that are PC-compatible, or that do not implement a
166     processor-architecture-specific firmware interface standard that allows
172     addresses corresponding to the non-hot removable PCI Segment Groups
173     range within a PCI Segment Group available to the operating system at
174     boot. This is required for the PC-compatible systems.
182     an optional ACPI object that returns the 64-bit memory mapped
184     base address returned by _CBA is processor-relative address. The _CBA
190     base address corresponding to the PCI Segment Group for the bus number
191     range specified in _CRS method. An ACPI name space object that contains