Messages in this thread | | | Date | Tue, 28 Nov 2006 21:56:21 +0000 | From | Alan <> | Subject | Re: [rfc PATCH] ieee1394: ohci1394: delete bogus spinlock, flush MMIO writes |
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On Tue, 28 Nov 2006 22:24:11 +0100 (CET) Stefan Richter <stefanr@s5r6.in-berlin.de> wrote:
> All MMIO writes which were surrounded by the spinlock as well as the > very last MMIO write of the IRQ handler are now explicitly flushed by > MMIO reads of the respective register.
MMIO is ordered anyway on the bus, you just need mmiowb() to force ordering to the bus controller in case you are on a big numa box. - 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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