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Re: [Qemu-devel] [RFC PATCH 0/6] Clock and power gating support

From: KONRAD Frederic
Subject: Re: [Qemu-devel] [RFC PATCH 0/6] Clock and power gating support
Date: Fri, 27 Jul 2018 17:12:55 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

Le 07/27/2018 à 04:59 PM, Peter Maydell a écrit :
On 27 July 2018 at 15:37, Damien Hedde <address@hidden> wrote:
This set of patches add support for power and clock gating in device objects.
It adds two booleans to the state, one for power state and one of clock state.

The state is controlled trough 2 functions, one for power and one for clock.
Two new methods *power_update* and *clock_update* is added to the device class
which are called on state change and can be overriden.

So, you folks at Greensocs had a series a couple of years ago to try
to add clocktree support (which included handling things like guests
configuring clock rates, some clocks being "downstream" of others, and
so on). It didn't make it into mainline, though it did get a fair amount
of design/code review. How does this approach fit into / compare with
that ?

-- PMM

Hi all,

I didn't have time to push a new version of the clock series and
I lost the track a little bit (was 13 months ago). Sorry for
that :(.. Would be still nice to have I think.


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