[v4, 1/2] cxl: Set the PBCQ Tunnel BAR register when enabling capi mode

Michael Ellerman patch-notifications at ellerman.id.au
Fri May 18 00:54:59 AEST 2018


On Mon, 2018-05-14 at 08:27:35 UTC, Philippe Bergheaud wrote:
> Skiboot used to set the default Tunnel BAR register value when capi mode
> was enabled. This approach was ok for the cxl driver, but prevented other
> drivers from choosing different values.
> 
> Skiboot versions > 5.11 will not set the default value any longer. This
> patch modifies the cxl driver to set/reset the Tunnel BAR register when
> entering/exiting the cxl mode, with pnv_pci_set_tunnel_bar().
> 
> That should work with old skiboot (since we are re-writing the value
> already set) and new skiboot.
> 
> Signed-off-by: Philippe Bergheaud <felix at linux.ibm.com>
> Reviewed-by: Christophe Lombard <clombard at linux.vnet.ibm.com>
> Acked-by: Frederic Barrat <fbarrat at linux.vnet.ibm.com>

Series applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/401dca8cbd14fc4b32d93499dcd12a

cheers


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