Messages in this thread | | | Subject | Re: Linux 2.4.21-pre3-ac4 | From | Benjamin Herrenschmidt <> | Date | 13 Jan 2003 21:56:50 +0100 |
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On Mon, 2003-01-13 at 20:19, Ross Biro wrote:
> and read the alt status register to get a delay. > > This is technically a spec violation, but it's probably safe. I'm going > to send an email to a couple of the drive manufacturers and see what > they think.
Or get back to my original idea of an IOSYNC() callback in hwif. For standard PCI controllers with DMA, it's enough to read the dma_status register which is on the same bus path. Others will have to provide some implementation or be unsafe on some non-x86. What do you think ?
Ben.
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