Re: [PATCH] drm/i915/display: split out intel_vga_client.[ch]

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On Tue, 01 Oct 2019, Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> On Tue, Oct 01, 2019 at 03:12:49PM +0100, Chris Wilson wrote:
>> Quoting Jani Nikula (2019-10-01 14:43:53)
>> > Split out code related to vga client and vga switcheroo
>> > register/unregister and state handling from i915_drv.c and
>> > intel_display.c.
>> > 
>> > It's a bit difficult to draw the line how much to move to the new file
>> > from i915_drv.c, but it seemed to me keeping i915_suspend_switcheroo()
>> > and i915_resume_switcheroo() in place was cleanest.
>> > 
>> > No functional changes.
>> > 
>> > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>> > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
>> > Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
>> > 
>> > ---
>> > 
>> > It's also a bit fuzzy if this is a sensible split anyway. Could also
>> > name it intel_vga and move these from intel_display.c there?
>> 
>> My initial thought that the switcheroo interface would remain in core,
>
> Yeah the switcheroo stuff should perhaps stays with the rest of the pm hooks.

Okay, so keep all of switcheroo in i915_drv.c, and move all the vgaarb
stuff (incl the ones I mentioned from intel_display.c) to
intel_vga.[ch]?

>
>> that it is more of a global power state that we currently just use for
>> the legacy vga switching.
>> 
>> The patch looks fine, on a pure mechanical pov,
>> Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
>> 
>> For the sake of argument, could you float the split in the other
>> direction?

Please elaborate. Move switcheroo higher in the call chain?

BR,
Jani.


>> 
>> And maybe Ville has a good opinion on how it is meant to work :)
>> -Chris

-- 
Jani Nikula, Intel Open Source Graphics Center
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