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Groups > linux.kernel > #1239182
| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit |
| Date | 2015-10-04 21:10 +0200 |
| Message-ID | <qfWPv-Ok-5@gated-at.bofh.it> (permalink) |
| References | <q2C2d-2c4-3@gated-at.bofh.it> <q6rrA-5QO-17@gated-at.bofh.it> <qfip4-1IO-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-10-03 02:00 +0200
Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit Arnd Bergmann <arnd@arndb.de> - 2015-10-04 21:10 +0200
Re: [RFC] asm-generic/pci_iomap.h: make custom PCI BAR requirements explicit "Luis R. Rodriguez" <mcgrof@suse.com> - 2015-10-05 19:10 +0200
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