[PATCH v5 1/2] powerpc/powernv: Enable tunneled operations

[Frederic Barrat]

Le 22/12/2017 à 13:36, Philippe Bergheaud a écrit :
> P9 supports PCI tunneled operations (atomics and as_notify). This
> patch adds support for tunneled operations on powernv, with a new
> API, to be called by device drivers:
> 
> pnv_pci_get_tunnel_ind()
>     Tell driver the 16-bit ASN indication used by kernel.
> 
> pnv_pci_set_tunnel_bar()
>     Tell kernel the Tunnel BAR Response address used by driver.
>     This function uses two new OPAL calls, as the PBCQ Tunnel BAR
>     register is configured by skiboot.
> 
> pnv_pci_get_as_notify_info()
>     Return the ASN info of the thread to be woken up.
> 
> Signed-off-by: Philippe Bergheaud <felix at linux.vnet.ibm.com>
> ---

Reviewed-by: Frederic Barrat <fbarrat at linux.vnet.ibm.com>