[v10,1/2] powerpc/powernv: Enable tunneled operations

Michael Ellerman patch-notifications at ellerman.id.au
Wed Mar 14 20:28:22 AEDT 2018

On Fri, 2018-03-02 at 09:56:11 UTC, Philippe Bergheaud wrote:
> 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_enable_tunnel()
>    Enable tunnel operations, tell driver the 16-bit ASN indication
>    used by kernel.
> pnv_pci_disable_tunnel()
>    Disable tunnel operations.
> 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>
> Reviewed-by: Christophe Lombard <clombard at linux.vnet.ibm.com>

Series applied to powerpc next, thanks.



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