Re: [PATCH 1/3] powerpc/powernv: remove the unused pnv_pci_set_p2p function

On 7/9/2019 4:59 PM, Christoph Hellwig wrote:

On Tue, Jul 09, 2019 at 01:49:04PM +0000, Max Gurtovoy wrote:

quoted

Hi Greg/Christoph,
Can we leave it meanwhile till we'll find a general solution (for the upcoming kernel) ?
I guess we can somehow generalize the P2P initialization process for PPC and leave it empty for now for other archs.
Or maybe we can find some other solution (sysfs/configfs/module param), but it will take time since we'll need to work closely with the IBM pci guys that wrote this code.

We do not keep code without in-tree users around, especially not if
we have a better API with in-tree users.

AFAICS the only thing you'll need is to wire up the enable/disable
calls.

I guess you're right, but we still need to know the time frame we have 
here since this should be tested carefully on the P9 hardware.

Are we ok with working on a solution during kernel-5.3 cycle ?