Re: [PATCH] alpha: provide ioread64 and iowrite64 implementations

From: Richard Henderson
Date: Sat Jun 24 2017 - 11:25:45 EST


On 06/24/2017 08:19 AM, Logan Gunthorpe wrote:
Hey,

On 24/06/17 09:13 AM, Richard Henderson wrote:
All Alpha hosts except for Jensen provide 64-bit I/O operations.

Jensen is EISA only, so there ought not be any devices that even
attempt such operations. But just in case, use 2 32-bit operations.

Thanks for this, Richard.

However, I was recently enlightened by the existence of the
linux/io-64-nonatomic* headers. This is where the 2 32-bit operation
functions belong. So you should probably remove them from this patch and
let drivers that need them just include those headers.

This has nothing to do with drivers.

This is all about providing 64-bit operations for the 99.999% of alphas that do have them.


r~