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28 There is thus, in HW, a table of PE states that contains a pair of "frozen"
33 return all 1's value. MSIs are also blocked. There's a bit more state that
66 bridge being triggered. There's a PE# in the interrupt controller
75 from the CPU address space to the PCI address space. There is one M32
92 need to ensure Linux doesn't assign anything there, the M32 logic
115 address on the PowerBus). There is a way to also set the top 14
120 has 256 segments; however, there is no table for mapping a segment
124 there's a defined ordering for which window applies.
145 than one segment, we end up with more than one PE#. There is a HW
186 There are several strategies for isolating VFs in PEs:
188 - M32 window: There's one M32 window, and it is split into 256
203 PEs (the segment number is the PE#), so there isn't as much
277 reserved in software; there are still only total_VFs VFs, and they only
278 respond to segments [0, total_VFs - 1]. There's nothing in hardware that
305 allocate 256 segments, there are (256 - numVFs) choices for the PE# of VF0.
311 space will consume (numVFs * n) segments. That means there aren't as many