On Tue, Mar 28, 2017 at 08:34:12PM +0800, Fu Wei wrote:
Hi Jon,
Thanks for your email An hour ago, I just got some feedback from Lorenzo, will update my patchset ASAP according to his suggestion.
But I still need some feedback form Mark, I can see some progress here: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/log/?h=arch-t...
I guess I should rebase my patchset to his gtdt branch for v23.
So now, I am waiting for Mark's feedback to move on.
Sorry for the delay; I have not had the time to focus on this as I would like to. I'm happy with patches 1-4, but from patch 5 onwards, there's one change I'd like to see.
I'd prefer that mmio timer frame rame N was always stored at arch_timer_mem::frame[N], rather than arch_timer_mem::frame[] being in an arbitrary order. That will make arch_timer_mem_frame::frame_nr redundant.
To allow arch_timer_mem::frame[] this to be sparse, I'm happy to have a bool arch_timer_mem_frame::valid field that we set when probing each frame. Then we don't need arch_timer_mem::num_frames.
This will make iterating over the frames far less confusing, and makes it simple to detect when a frame number is erroneously reused.
Otherwise, I'm largely happy to pick the rest and apply any fixups myself.
Thanks, Mark.