[V4] cxl: Export library to support IBM XSL

[Michael Ellerman]

On Thu, 2017-06-22 at 13:07:27 UTC, Christophe Lombard wrote:
> This patch exports a in-kernel 'library' API which can be called by
> other drivers to help interacting with an IBM XSL on a POWER9 system.
> 
> The XSL (Translation Service Layer) is a stripped down version of the
> PSL (Power Service Layer) used in some cards such as the Mellanox CX5.
> Like the PSL, it implements the CAIA architecture, but has a number
> of differences, mostly in it's implementation dependent registers.
> 
> The XSL also uses a special DMA cxl mode, which uses a slightly
> different init sequence for the CAPP and PHB.
> 
> Signed-off-by: Andrew Donnellan <andrew.donnellan at au1.ibm.com>
> Signed-off-by: Christophe Lombard <clombard at linux.vnet.ibm.com>
> Acked-by: Frederic Barrat <fbarrat at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/3ced8d73006321bd2a0412fa0ff4b0

cheers