[U-Boot] ARMv8 spin-table patches

[Mark Rutland <mark.rutland@arm.com>]

On Mon, Jul 14, 2014 at 09:21:26PM +0100, York Sun wrote:
> On 07/14/2014 07:03 AM, Mark Rutland wrote:
> > Unfortunately I don't have an answer to that; the arm64 Linux spin-table
> > documentation and code were all written before I was involved.
> > 
> > The unfortunate truth is that a lot of the ARM DT and boot unification
> > work was done somewhat blindly, with many subtleties being lost. Someone
> > implemented spin-table with a shared address because it happened to be
> > easier, and then it got copied. Now that people are actively using it
> > it's not possible to remove it, and it's difficult to dissuade others
> > from following the crowd.
> > 
> > If U-Boot provides each CPU with its own unique address, then that would
> > be fantastic, and certainly avoids one nasty edge-case.
> 
> In the patch set I sent for review, each CPU has its own spin table. It has an
> option to use a single release address, or individual release address.

Ok, each having their own table is good.

I would strongly recommend against sharing the release address for the
reasons I described in my earlier email.

Cheers,
Mark.