Re: HELP: Is writeq an atomic operation??

[David Miller]

From: Roland Dreier <rdreier@xxxxxxxxx>
Date: Fri, 02 May 2008 15:43:32 -0700

> Are there any 32-bit platforms with writeq()?  A quick grep suggests not.

Right, I guess there aren't, but what drivers do currently is roll
their own 64-bit MMIO for such cases.

I noticed this when writing drivers/net/niu.c

I suppose this is on purpose, so the driver can setup any
such protection and handling, as needed.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/