Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit | Date | Sun, 04 Oct 2015 21:02:04 +0200 |
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On Saturday 03 October 2015 01:53:46 Luis R. Rodriguez wrote: > > > > Hmm, my gut feeling tells me that your approach won't solve the problem > > in general. s390 PCI is just weird in many ways and it will occasionally > > suffer from problems like this (as do other aspects of the s390 architecture > > that are unlike the rest of the world). > > > > Maybe Martin and Heiko can comment on this, they may have a preference > > from the s390 point of view. > > Hrm, so S390 is quirky is really odd ways that no other architecture is or > is at least for now not expected to be ?
Absolutely correct. It is the only architecture I'm aware of that tries to support PCI that does not use pointer dereferences for MMIO.
Arnd
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